/* ==========================================================================
   Design Principles - Modern Minimalist Data-Dense Interface
   ==========================================================================
   
   VISUAL HIERARCHY & DENSITY
   - High information density with breathing room via strategic spacing
   - Subtle surface elevation (minimal shadows, border differentiation)
   - Text hierarchy through weight/size, not color jumps
   - Row grouping via background tints and border accents
   
   STICKY NAVIGATION
   - Header row: sticky top for column context
   - First column: sticky left for row identification
   - Combined z-index layering for intersection clarity
   
   COLOR STRATEGY
   - Neutral grays (98-90%) for surfaces, minimal contrast fatigue
   - Accent blue for interaction states, not decoration
   - Semantic colors (danger red) only when necessary
   - Group rows: 3-5% tint of accent or gray
   
   INTERACTION & FEEDBACK
   - Hover: subtle background shift (8-12% opacity change)
   - Focus: crisp ring with accent color at 25-30% opacity
   - Active/Selected: 15-20% accent background
   - Transitions: 120-200ms for micro-interactions
   
   CODE ORGANIZATION
   - Modern CSS nesting for component encapsulation
   - Logical properties (inline/block) for i18n readiness
   - Custom properties for all design tokens
   - Minimal selector specificity
   
   ACCESSIBILITY
   - WCAG AA contrast ratios minimum
   - Focus-visible for keyboard navigation
   - Reduced motion respect via prefers-reduced-motion
   - Touch targets minimum 44x44px
   
   ========================================================================== */

:root {
  color-scheme: light;

  /* Typography Scale */
  --font-sans: system-ui, -apple-system, "Segoe UI", "Noto Sans TC", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", monospace;
   --font-size-root: 18px;
  --line-height-base: 1.5;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;

  /* Color Palette - Neutral Scale */
  --surface-0: hsl(220 15% 98%);
  --surface-1: hsl(220 12% 95%);
  --surface-2: hsl(220 10% 92%);
  --surface-raised: hsl(220 10% 96%);
  
  /* Color Palette - Text */
  --text-primary: hsl(220 20% 10%);
  --text-secondary: hsl(220 10% 45%);
  --text-tertiary: hsl(220 8% 60%);
  
  /* Color Palette - Accent */
  --accent: hsl(215 90% 52%);
  --accent-hover: hsl(215 90% 48%);
  --accent-soft: hsl(215 90% 52% / 0.1);
  --accent-softer: hsl(215 90% 52% / 0.05);
  
  /* Color Palette - Semantic */
  --danger: hsl(355 75% 50%);
  --danger-soft: hsl(355 75% 50% / 0.1);
  
  /* Border & Divider */
  --border: hsl(220 12% 88%);
  --border-subtle: hsl(220 10% 92%);
  --divider: hsl(220 10% 90%);
  
  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px hsl(220 20% 10% / 0.08);
  --shadow-md: 0 4px 12px hsl(220 20% 10% / 0.12);
  --shadow-lg: 0 8px 24px hsl(220 20% 10% / 0.15);
  
  /* Transitions */
  --transition-fast: 120ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Table-Specific */
  --table-row-hover: hsl(220 15% 50% / 0.04);
  --table-row-selected: hsl(211 100% 91%);
  --table-row-group-bg: hsl(215 90% 52% / 0.03);
  --table-row-group-border: hsl(215 90% 52% / 0.2);
  --table-header-bg: var(--surface-1);
  --table-cell-height: 2.75rem;
  
   /* Focus Ring */
   --focus-ring: 0 0 0 3px hsl(215 90% 52% / 0.25);
   --focus-ring-offset: 2px;

   /* Avatar Gradient */
   --avatar-gradient: linear-gradient(135deg, hsl(215 90% 52%), hsl(180 90% 55%));
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  /* Exception: Allow loading spinner to animate even with reduced motion */
  div#loader-overlay > div,
  div#loading-overlay > div,
  section#sheet[data-refreshing="true"]::after,
  .loading::before,
  .is-executing::after {
    animation-duration: 2.5s !important;
    animation-iteration-count: infinite !important;
  }
}

/* ==========================================================================
   Base Reset & Foundational Styles
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
}

html {
  font-size: var(--font-size-root);
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  line-height: var(--line-height-base);
  color: var(--text-primary);
  background: var(--surface-0);
  min-height: 100dvh;
  
  &.context-menu-loading {
    cursor: wait !important;
    * { cursor: inherit !important; }
  }
}

/* Disable text selection on mobile by default */
@media (hover: none) and (pointer: coarse) {
  * {
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
  }
  
  /* Allow text selection in input fields */
  input,
  textarea {
    user-select: text;
    -webkit-user-select: text;
  }
}

@view-transition {
  navigation: auto;
}

::view-transition-group(root) {
  animation-duration: 0s;
}

/* ==========================================================================
   Typography
   ========================================================================== */

:where(h1, h2, h3, h4, h5, h6) {
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  line-height: 1.2;
  text-wrap: balance;
}

h1 { font-size: clamp(1.75rem, 4vw, 2.25rem); }
h2 { font-size: clamp(1.5rem, 3vw, 1.875rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

p {
  text-wrap: pretty;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity var(--transition-fast);
  
  &:where(:hover, :focus-visible) {
    opacity: 0.8;
    text-decoration: underline;
  }
}

strong, b { font-weight: var(--font-weight-semibold); }
em, i { font-style: italic; }

::selection {
  background: var(--accent-soft);
}

ul, ol {
  list-style: none;
  padding: var(--space-4);
  margin: var(--space-3) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* ==========================================================================
   Form Elements
   ========================================================================== */

input, button, select, textarea {
  font: inherit;
  color: inherit;
}

:where(input, select, textarea):where([type="text"], [type="email"], [type="password"], [type="search"], [type="tel"], [type="url"], [type="number"], [type="date"], :not([type])) {
   display: block;
   inline-size: 100%;
   padding: var(--space-2) var(--space-3);
   background: var(--surface-raised);
   border: 1px solid var(--border);
   border-radius: var(--radius-sm);
   transition: border-color var(--transition-base), box-shadow var(--transition-base);
   
   &::placeholder {
     color: var(--text-tertiary);
   }
   
   &:focus-visible {
     outline: none;
     border-color: var(--accent);
     box-shadow: var(--focus-ring);
   }
   
   &:disabled {
     opacity: 0.5;
     cursor: not-allowed;
   }
   
   &:invalid {
     border-color: var(--danger);
     background: hsl(355 75% 50% / 0.02);
     
     &:focus-visible {
       border-color: var(--danger);
       box-shadow: 0 0 0 3px hsl(355 75% 50% / 0.25);
     }
   }
}

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23737373' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M3 6l5 5 5-5'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right var(--space-2) center;
  background-size: 1em;
  padding-inline-end: var(--space-6);
}

textarea {
  resize: vertical;
  min-block-size: 5rem;
}

input[type="checkbox"],
input[type="radio"] {
  inline-size: 1.25rem;
  block-size: 1.25rem;
  cursor: pointer;
  accent-color: var(--accent);
}

button,
input[type="button"],
input[type="submit"],
input[type="reset"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--accent);
  color: white;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  user-select: none;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  
  &:where(:hover, :focus-visible) {
    background: var(--accent-hover);
  }
  
  &:active {
    transform: translateY(1px);
  }
  
  &:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
  }
  
  &:disabled {
    opacity: 0.5;
    cursor: not-allowed;
  }
}

/* ==========================================================================
   Form Layout Defaults
   ========================================================================== */

form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

fieldset {
  margin: 0;
  padding: 0;
  border: none;
}

label {
  display: block;
  margin-block-end: var(--space-3);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
}

label > :is(input, select, textarea):not([type="checkbox"]):not([type="radio"]) {
  margin-block-start: var(--space-1);
}

label:has(input[type="checkbox"], input[type="radio"]) {
  display: flex !important;
  align-items: center;
  gap: var(--space-2);
}

label:has(input[type="checkbox"], input[type="radio"]) input {
  margin: 0;
  margin-inline-end: var(--space-2);
}

form > div:has(button) {
  display: flex;
  gap: var(--space-2);
  justify-content: flex-end;
  margin-block-start: var(--space-2);
}

button[type="button"],
input[type="button"],
button.secondary {
  background: transparent;
  color: var(--text-secondary);
}

button[type="button"]:hover,
input[type="button"]:hover,
button.secondary:hover {
  background: var(--surface-2);
  color: var(--text-primary);
}

/* ==========================================================================
   Layout - Main Structure
   ========================================================================== */

main#main {
  display: flex;
  flex-direction: column;
  block-size: calc(100dvh - 3.5rem);
  min-block-size: 0;
}

/* ==========================================================================
   Component: Page Header
   ========================================================================== */

header#page-header {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-5);
  background: var(--surface-1);
  border-block-end: 1px solid var(--border-subtle);
  position: sticky;
  inset-block-start: 0;
  z-index: 10;
  
  & > h1 {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
    justify-self: start;
  }
  
  & > #dynamic-island {
    position: fixed;
    grid-column: 1 / -1;
  }
  
  & > .header-right-group {
    justify-self: end;
    display: flex;
    align-items: center;
    gap: var(--space-3);
  }
}

/* ==========================================================================
   Component: Views Navigation
   ========================================================================== */

nav#views {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-inline: var(--space-5);
  background: var(--surface-1);
  border-block-end: 1px solid var(--border-subtle);
  min-block-size: 3rem;
  
  & ul {
    display: flex;
    flex-direction: row;
    gap: var(--space-1);
    overflow-x: auto;
    flex: 1;
    list-style: none;
    padding: 0;
    margin: 0;
    scrollbar-width: none;
    
    &::-webkit-scrollbar {
      display: none;
    }
  }
  
  & li,
  & > div {
    padding: var(--space-2) var(--space-4);
    color: var(--text-secondary);
    font-weight: var(--font-weight-medium);
    font-size: 0.9375rem;
    cursor: pointer;
    border-block-end: 3px solid transparent;
    white-space: nowrap;
    transition: color var(--transition-fast), border-color var(--transition-fast);
    
    &:hover {
      color: var(--text-primary);
    }
    
    &.active {
      color: var(--accent);
      border-block-end-color: var(--accent);
    }
    
    &.dirty {
      position: relative;
      padding-inline-start: calc(var(--space-4) + var(--space-3));
      
      &::before {
        content: "";
        position: absolute;
        inset-inline-start: var(--space-3);
        inset-block-start: 50%;
        transform: translateY(-50%);
        inline-size: 0.5rem;
        block-size: 0.5rem;
        background: var(--accent);
        border-radius: var(--radius-full);
        animation: pulse 2s infinite ease-in-out;
      }
    }
  }
  
  & .view-count {
    display: inline-block;
    margin-inline-start: var(--space-2);
    padding: 0.125em 0.5em;
    font-size: 0.8125rem;
    font-weight: var(--font-weight-semibold);
    color: var(--accent);
    background: var(--accent-soft);
    border-radius: var(--radius-full);
  }
  
  & > button {
    padding: var(--space-2) var(--space-3);
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid transparent;
    font-size: 0.9375rem;
    
    &:hover {
      background: var(--surface-2);
      color: var(--text-primary);
    }
    
    & iconify-icon {
      font-size: 1.25rem;
    }
  }
}

@keyframes pulse {
  0%, 100% {
    transform: translateY(-50%) scale(1);
    opacity: 0.75;
  }
  50% {
    transform: translateY(-50%) scale(1.25);
    opacity: 1;
  }
}

/* ==========================================================================
   Component: Data Sheet Table
   ========================================================================== */

section#sheet {
   position: relative;
   flex: 1;
   overflow: auto;
   background: var(--surface-0);
   /* user-select: none; */
   scrollbar-gutter: stable;
   scrollbar-width: auto;
   
   &::-webkit-scrollbar-thumb {
     background: hsl(220 10% 75%);
     border-radius: var(--radius-full);
   }
   
   &::-webkit-scrollbar-track {
     background: transparent;
   }
  
  &[data-refreshing="true"] {
    &::before {
      content: "";
      position: absolute;
      inset: 0;
      background: hsl(220 15% 98% / 0.8);
      backdrop-filter: blur(4px);
      z-index: 2;
    }
    
    &::after {
      content: "";
      position: absolute;
      inset-block-start: 50%;
      inset-inline-start: 50%;
      transform: translate(-50%, -50%);
      inline-size: 2.5rem;
      block-size: 2.5rem;
      border: 3px solid var(--border);
      border-block-start-color: var(--accent);
      border-radius: var(--radius-full);
      animation: spin 1s linear infinite;
      z-index: 3;
    }
    
    & > table {
      filter: blur(2px);
      opacity: 0.6;
    }
  }
  
     & > table {
       width: 100%;
       min-inline-size: 100%;
       border-collapse: collapse;
       table-layout: fixed;
       font-size: 0.875rem;
    
     & thead {
       position: sticky;
       inset-block-start: 0;
       z-index: 3;
       background: var(--table-header-bg);
       
       &::after {
         content: "";
         position: absolute;
         inset-inline: 0;
         inset-block-end: 0;
         block-size: 1px;
         background: var(--border);
         z-index: 5;
       }
     }
    
      & th {
       padding: var(--space-2) var(--space-3);
       background: var(--table-header-bg);
       color: var(--text-primary);
       font-weight: var(--font-weight-semibold);
       font-size: 0.8125rem;
       text-align: start;
       white-space: nowrap;
       overflow: hidden;
       text-overflow: ellipsis;
       border-block-end: 1px solid var(--border);
       cursor: pointer;
       user-select: none;
       transition: color var(--transition-fast), background var(--transition-fast);
       position: relative;
       z-index: 3;
       
       &:hover {
         color: var(--accent);
       }
       
       &.filtered {
         background: linear-gradient(hsl(215 90% 52% / 0.12), hsl(215 90% 52% / 0.12)), var(--table-header-bg);
         color: var(--accent);
         z-index: 3;
       }
      
      & .select-all-button {
        padding: var(--space-1) var(--space-2);
        background: var(--surface-raised);
        border: 1px solid var(--border);
        font-size: 0.8125rem;
        font-weight: var(--font-weight-medium);
        
        &:hover {
          border-color: var(--accent);
          background: var(--accent-soft);
        }
      }
      
      & iconify-icon {
        font-size: 0.8125rem;
        vertical-align: middle;
        line-height: 1;
        display: inline-flex;
        align-items: center;
      }
    }
    
    & iconify-icon {
      font-size: 0.8125rem;
      vertical-align: middle;
      line-height: 1;
      display: inline-flex;
      align-items: center;
    }
    
    & td {
      padding: var(--space-2) var(--space-3);
      color: var(--text-primary);
      border-block-end: 1px solid var(--border-subtle);
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      height: var(--table-cell-height);
      max-height: var(--table-cell-height);
      vertical-align: middle;
      font-variant-numeric: tabular-nums;
      transition: background var(--transition-fast);
      line-height: 1.2;
      
      & .tag {
        margin: 0;
        padding: var(--space-1) var(--space-2);
        line-height: 1;
      }
      
      & > div {
        line-height: inherit;
      }
      
      &.numeric {
        text-align: end;
      }
      
      &.currency {
        text-align: end;
        font-weight: var(--font-weight-semibold);
      }
      
      &.long-text {
        white-space: normal;
        text-overflow: unset;
        vertical-align: top;
      }
      
       &.datetime {
         text-align: end;
         font-size: 0.8125rem;
         
         & > :first-child {
           display: inline;
           font-weight: var(--font-weight-medium);
           
           &:empty {
             display: none;
           }
           
           &:not(:empty) + .relative-time::before {
             content: " · ";
             color: var(--text-tertiary);
           }
         }
         
         & .relative-time {
           display: inline;
           font-size: 0.75rem;
           color: var(--text-tertiary);
           font-style: italic;
           
           &:empty {
             display: none;
           }
         }
       }
       
    &.cell-image {
          padding: var(--space-1) var(--space-3);
          display: flex;
          align-items: center;
          justify-content: center;
          
          & img {
            max-height: calc(var(--table-cell-height) - var(--space-2));
            max-width: 100%;
            object-fit: contain;
            display: block;
            cursor: pointer;
            transition: opacity var(--transition-fast);
            
            &:hover {
              opacity: 0.7;
            }
          }
        }
       
       &.cell-na {
         color: var(--text-tertiary);
         cursor: not-allowed;
         user-select: none;
       }
    }
    
    & th:first-child,
    & td:first-child {
      position: sticky;
      inset-inline-start: 0;
      z-index: 2;
      border-inline-end: 1px solid var(--border);
      
      &::after {
        content: "";
        position: absolute;
        inset-block: 0;
        inset-inline-end: -6px;
        inline-size: 6px;
        background: linear-gradient(to right, hsl(220 20% 10% / 0.06), transparent);
        pointer-events: none;
      }
    }
    
    & th:first-child {
      background: var(--table-header-bg);
      z-index: 4;
    }
    
    & tbody tr {
      height: var(--table-cell-height);
      max-height: var(--table-cell-height);
      
      & td {
        background: var(--surface-0);
      }
      
      & td:first-child {
        background: var(--surface-1);
      }
      
      &:is([data-row-group], .row-group) {
        & td {
          background: var(--table-row-group-bg);
        }
        
        & td:first-child {
          background: color-mix(in srgb, var(--surface-1) 97%, var(--accent) 3%);
        }
      }
      
      &:hover:not(.selected) {
        & td {
          background: var(--table-row-hover);
        }
        
        & td:first-child {
          background: color-mix(in srgb, var(--surface-1) 96%, var(--text-primary) 4%);
        }
      }
      
      &.selected {
        & td {
          background: var(--table-row-selected);
          color: var(--text-primary);
        }
      }
      
      &:is([data-row-group-start], .row-group-start) td {
        border-block-start: 2px solid var(--table-row-group-border);
      }
      
      &:is([data-row-group-end], .row-group-end) td {
        border-block-end: 2px solid var(--table-row-group-border);
      }
    }
    
    & tbody + tbody {
      border-block-start: 2px solid var(--divider);
    }
    
    & input[type="checkbox"] {
      inline-size: 1.375rem;
      block-size: 1.375rem;
    }
  }
  
   & tr.load-more-trigger {
     & td {
       padding-block: var(--space-5);
       text-align: center;
       border-block-end: none;
       background: transparent;
     }
     
     &:hover td {
       background: transparent !important;
     }
     
     & .load-more-content {
       display: inline-flex;
       align-items: center;
       gap: var(--space-2);
       color: var(--text-secondary);
       font-size: 0.875rem;
     }
   }
   
   & .mdi-content-copy {
     display: inline-flex;
     align-items: center;
     justify-content: center;
     cursor: pointer;
     color: var(--text-secondary);
     transition: color var(--transition-fast), transform var(--transition-fast), background var(--transition-fast);
     border-radius: var(--radius-sm);
     padding: var(--space-1);
     margin-inline-start: var(--space-2);
     
     &:hover {
       color: var(--accent);
       background: var(--accent-softer);
       transform: scale(1.1);
     }
     
     &:active {
       transform: scale(0.95);
       background: var(--accent-soft);
     }
     
     &.copied {
       color: hsl(142 76% 36%);
       animation: copy-success 600ms cubic-bezier(0.4, 0, 0.2, 1);
     }
   }
}

/* ==========================================================================
    Component: Top Toolbar (Sheet-style)
    ========================================================================== */

nav#toolbar {
   display: flex;
   align-items: center;
   gap: var(--space-3);
   padding: var(--space-2) var(--space-4);
   background: var(--surface-1);
   border-block-end: 1px solid var(--border-subtle);
   min-block-size: 2.75rem;
   overflow-x: auto;
   scrollbar-width: none;
   
   &::-webkit-scrollbar {
     display: none;
   }
   
   & fieldset {
     display: flex;
     align-items: center;
     gap: var(--space-2);
     padding: 0;
     margin: 0;
     border: none;
     
     & legend {
       display: none;
     }
     
     & button {
       display: inline-flex;
       align-items: center;
       justify-content: center;
       padding: var(--space-1) var(--space-2);
       background: transparent;
       color: var(--text-secondary);
       border: 1px solid transparent;
       border-radius: var(--radius-sm);
       cursor: pointer;
       transition: all var(--transition-fast);
       min-inline-size: 2rem;
       min-block-size: 2rem;
       font-size: 0.875rem;
       
       & iconify-icon {
         font-size: 1.125rem;
       }
       
       &:hover {
         background: var(--accent-soft);
         color: var(--accent);
         border-color: transparent;
       }
       
       &:active {
         background: var(--accent-softer);
         transform: scale(0.98);
       }
       
       &.active {
         background: var(--accent-soft);
         color: var(--accent);
         border-color: var(--accent);
       }
     }
   }
   
   & fieldset:not(:last-child) {
     padding-inline-end: var(--space-2);
     border-inline-end: 1px solid var(--border-subtle);
   }
}

/* ==========================================================================
    Component: Bottom Toolbar
    ========================================================================== */

nav#bottom-toolbar {
   position: fixed;
   inset-inline: 0;
   inset-block-end: 0;
   padding: var(--space-2) var(--space-5);
   background: var(--surface-1);
   border-block-start: 1px solid var(--border-subtle);
   box-shadow: 0 -2px 8px hsl(220 20% 10% / 0.04);
   z-index: 100;
   
   & ul {
      display: flex;
      flex-direction: row;
      align-items: center;
      gap: var(--space-4);
      list-style: none;
      padding: 0;
      margin: 0;
    }
   
   & li {
     display: flex;
     align-items: center;
     gap: var(--space-2);
     
     &:where(:hover, .active) > :is(a, span) {
       color: var(--accent);
     }
     
     &.active > a {
       border-block-end-color: var(--accent);
     }
   }
   
   & a {
     display: flex;
     align-items: center;
     gap: var(--space-2);
     padding-block: var(--space-2);
     color: var(--text-secondary);
     font-size: 0.875rem;
     font-weight: var(--font-weight-medium);
     border-block-end: 2px solid transparent;
     transition: color var(--transition-fast), border-color var(--transition-fast);
   }
}

/* ==========================================================================
    Component: Command Window Dialog
    ========================================================================== */

section#command-window {
  & dialog {
    /* Base positioning - centered horizontally, near top */
    position: fixed;
    inset-block-start: 10vh;
    inset-inline-start: 50%;
    transform: translateX(-50%);
    margin: 0;
    padding: 0;
    
    /* Visual styling */
    background: var(--surface-0);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    
    /* Sizing - constrained for desktop */
    inline-size: min(48rem, calc(100vw - var(--space-6) * 2));
    block-size: min(36rem, calc(80vh - var(--space-6)));
    max-inline-size: calc(100vw - var(--space-4) * 2);
    max-block-size: calc(100dvh - var(--space-6) * 2);
    
    /* Layout & misc */
    overflow: hidden;
    z-index: 1001;
    font-size: 0.9375rem;
    
    /* Smooth transitions for state changes */
    transition: 
      inset var(--transition-base) cubic-bezier(0.4, 0, 0.2, 1),
      transform var(--transition-base) cubic-bezier(0.4, 0, 0.2, 1),
      inline-size var(--transition-base) cubic-bezier(0.4, 0, 0.2, 1),
      block-size var(--transition-base) cubic-bezier(0.4, 0, 0.2, 1),
      border-radius var(--transition-base) cubic-bezier(0.4, 0, 0.2, 1),
      box-shadow var(--transition-base) cubic-bezier(0.4, 0, 0.2, 1);
    
    &[open] {
      display: flex;
      flex-direction: column;
    }
    
    &:not([open]) {
      display: none;
    }
    
    /* ----- Minimized State ----- */
    &.minimized {
      /* Position to bottom-right corner */
      inset-block-start: auto;
      inset-block-end: var(--space-5);
      inset-inline-start: auto;
      inset-inline-end: var(--space-5);
      transform: none;
      
      /* Compact pill shape */
      inline-size: clamp(16rem, 20vw, 22rem);
      block-size: 3rem;
      border-radius: var(--radius-full);
      box-shadow: var(--shadow-md);
      
      /* Hide content, show only header */
      & > :not(header) {
        display: none;
      }
      
      & > header {
        block-size: 100%;
        border-block-end: none;
        padding: var(--space-2) var(--space-3);
        border-radius: var(--radius-full);
        
        & h4 {
          font-size: 0.875rem;
          opacity: 0.9;
          overflow: hidden;
          text-overflow: ellipsis;
          white-space: nowrap;
        }
        
        & menu button {
          min-inline-size: 2rem;
          min-block-size: 2rem;
          padding: var(--space-1);
        }
      }
    }
    
    &:focus-visible {
      outline: none;
      box-shadow: 0 0 0 3px var(--accent-soft), var(--shadow-lg);
    }
    
    /* ----- Header (Drag Handle) ----- */
    & > header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: var(--space-3);
      padding: var(--space-3) var(--space-4);
      background: var(--surface-1);
      border-block-end: 1px solid var(--border-subtle);
      cursor: grab;
      user-select: none;
      flex-shrink: 0;
      min-block-size: 3rem;
      
      &:active {
        cursor: grabbing;
      }
      
      & h4 {
        font-size: 1rem;
        font-weight: var(--font-weight-semibold);
        color: var(--text-primary);
        margin: 0;
        flex: 1;
        min-inline-size: 0;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
      }
      
      & menu {
        display: flex;
        flex-direction: row;
        gap: var(--space-1);
        padding: 0;
        margin: 0;
        list-style: none;
        flex-shrink: 0;
        
        & button {
          display: grid;
          place-items: center;
          padding: var(--space-2);
          background: transparent;
          color: var(--text-secondary);
          border: none;
          border-radius: var(--radius-sm);
          cursor: pointer;
          transition: all var(--transition-fast);
          /* Touch-friendly minimum size */
          min-inline-size: 2.5rem;
          min-block-size: 2.5rem;
          font-size: 1rem;
          
          &:hover {
            color: var(--accent);
            background: var(--accent-softer);
          }
          
          &:focus-visible {
            outline: none;
            box-shadow: var(--focus-ring);
          }
          
          &:active {
            transform: scale(0.95);
            background: var(--accent-soft);
          }
          
          & iconify-icon {
            font-size: 1.25rem;
          }
        }
      }
    }
    
    /* ----- Main Content Section ----- */
    & > section {
      padding: var(--space-4);
      overflow-y: auto;
      flex: 1;
      min-block-size: 0;
      display: flex;
      flex-direction: column;
      gap: var(--space-4);
      
      /* Smooth scrolling with thin scrollbar */
      scrollbar-width: thin;
      scrollbar-color: var(--border) transparent;
      
      &::-webkit-scrollbar {
        inline-size: 6px;
      }
      
      &::-webkit-scrollbar-thumb {
        background: var(--border);
        border-radius: var(--radius-full);
      }
      
      & input,
      & textarea,
      & select {
        font-size: 1rem;
      }
      
      & .command-list {
        display: flex;
        flex-direction: column;
        gap: var(--space-1);
        overflow-y: auto;
        inline-size: 100%;
        margin: 0;
        padding: 0;
        list-style: none;
        
        & li {
          padding: var(--space-2) var(--space-3);
          border-radius: var(--radius-sm);
          cursor: pointer;
          transition: background var(--transition-fast), color var(--transition-fast);
          
          &:hover {
            background: var(--accent-softer);
          }
          
          &.active {
            background: var(--accent-soft);
            color: var(--accent);
            font-weight: var(--font-weight-medium);
          }
        }
      }
    }
    
    /* ----- Footer ----- */
    & > footer {
      display: flex;
      align-items: center;
      gap: var(--space-2);
      padding: var(--space-3) var(--space-4);
      border-block-start: 1px solid var(--border-subtle);
      background: var(--surface-1);
      justify-content: flex-end;
      flex-shrink: 0;
      flex-wrap: wrap;
      
      & button {
        padding: var(--space-2) var(--space-4);
        font-size: 0.9375rem;
        min-block-size: 2.5rem;
        
        &.secondary {
          background: transparent;
          color: var(--text-secondary);
          
          &:hover {
            background: var(--surface-2);
            color: var(--text-primary);
          }
        }
      }
    }
    
    /* ----- Backdrop ----- */
    &::backdrop {
      background: hsl(220 20% 10% / 0.4);
      backdrop-filter: blur(4px);
      -webkit-backdrop-filter: blur(4px);
    }
  }
  
  /* =========================================================================
     Mobile Responsive - Full screen sheet style
     ========================================================================= */
  @media (max-width: 640px) {
    & dialog {
      /* Full-width bottom sheet on mobile */
      inset-block-start: auto;
      inset-block-end: 0;
      inset-inline-start: 0;
      inset-inline-end: 0;
      transform: none;
      
      /* Full width, max height with safe area */
      inline-size: 100%;
      max-inline-size: 100%;
      block-size: auto;
      max-block-size: calc(100dvh - env(safe-area-inset-top, 0px) - var(--space-6));
      
      /* Bottom sheet styling */
      border-radius: var(--radius-lg) var(--radius-lg) 0 0;
      border-inline: none;
      border-block-end: none;
      
      /* Handle indicator for dragging */
      &::before {
        content: "";
        position: absolute;
        inset-block-start: var(--space-2);
        inset-inline-start: 50%;
        transform: translateX(-50%);
        inline-size: 2.5rem;
        block-size: 0.25rem;
        background: var(--border);
        border-radius: var(--radius-full);
        z-index: 1;
      }
      
      & > header {
        padding-block-start: var(--space-5);
      }
      
      & > section {
        padding: var(--space-4);
        /* Ensure content doesn't exceed viewport */
        max-block-size: calc(100dvh - 12rem);
      }
      
      & > footer {
        padding-block-end: calc(var(--space-3) + env(safe-area-inset-bottom, 0px));
        
        & button {
          flex: 1;
          min-inline-size: 0;
        }
      }
      
      /* Mobile minimized - floating pill at bottom */
      &.minimized {
        inset-block-end: calc(var(--space-4) + env(safe-area-inset-bottom, 0px));
        inset-inline-start: var(--space-4);
        inset-inline-end: var(--space-4);
        inline-size: auto;
        max-inline-size: none;
        block-size: 3rem;
        border-radius: var(--radius-full);
        border: 1px solid var(--border);
        
        &::before {
          display: none;
        }
        
        & > header {
          padding-block-start: var(--space-2);
        }
      }
    }
  }
  
  /* Tablet adjustments */
  @media (min-width: 641px) and (max-width: 1024px) {
    & dialog {
      inline-size: min(42rem, calc(100vw - var(--space-5) * 2));
      block-size: min(32rem, calc(75vh - var(--space-5)));
      inset-block-start: 8vh;
      
      &.minimized {
        inset-block-end: var(--space-4);
        inset-inline-end: var(--space-4);
        inline-size: 18rem;
      }
    }
  }
  
  /* Large desktop - allow bigger window */
  @media (min-width: 1400px) {
    & dialog {
      inline-size: min(56rem, calc(100vw - var(--space-6) * 2));
      block-size: min(42rem, calc(85vh - var(--space-6)));
    }
  }
}

/* ==========================================================================
   Component: Toast Notification
   ========================================================================== */

dialog.toast {
  position: fixed;
  inset-block-end: var(--space-4);
  inset-inline-start: 50%;
  transform: translateX(-50%) translateY(100%);
  padding: var(--space-3) var(--space-4);
  background: var(--text-primary);
  color: var(--surface-0);
  border: none;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-inline-size: 18rem;
  max-inline-size: min(90vw, 24rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  opacity: 0;
  transition: transform var(--transition-base), opacity var(--transition-base);
  z-index: 9999;
  margin: 0;
  
  &[open] {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
  }
  
  & button {
    padding: 0;
    background: none;
    border: none;
    color: inherit;
    font-size: 1.25rem;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
    flex-shrink: 0;
    margin-inline-start: auto;
    
    &:hover {
      opacity: 1;
    }
  }
}

/* ==========================================================================
   Component: Loading Overlay
   ========================================================================== */

div#loader-overlay {
   position: fixed;
   inset: 0;
   background: hsl(220 15% 98% / 0.9);
   display: flex;
   align-items: center;
   justify-content: center;
   z-index: 9999;
   visibility: visible;
   opacity: 1;
   transition: opacity var(--transition-base), visibility var(--transition-base);
   
   &[hidden] {
     opacity: 0;
     visibility: hidden;
   }
   
   & > div {
     inline-size: 3rem;
     block-size: 3rem;
     border: 4px solid var(--border);
     border-block-start-color: var(--accent);
     border-radius: var(--radius-full);
     animation: spin 1s linear infinite;
   }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* ==========================================================================
   Component: Details
   ========================================================================== */

details {
  max-block-size: 100%;

  &[open] > :not(summary) {
    display: block;
    max-block-size: calc(50vh - 5rem);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;

    &::-webkit-scrollbar {
      inline-size: 6px;
    }

    &::-webkit-scrollbar-thumb {
      background: var(--border);
      border-radius: var(--radius-full);
    }
  }
}

summary {
  cursor: pointer;
  user-select: none;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);

  &:hover {
    background: var(--accent-softer);
  }

  &::-webkit-details-marker {
    margin-inline-end: var(--space-2);
  }

  &::marker {
    color: var(--text-secondary);
  }
}

/* ==========================================================================
   Utility: Loading Indicator
   ========================================================================== */

.loading {
  position: relative;
}

.loading::before {
  content: "";
  display: inline-block;
  width: 1rem;
  height: 1rem;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-right: var(--space-2);
  vertical-align: middle;
}

/* ==========================================================================
   Utility: Executing/Processing State
   ========================================================================== */

.is-executing {
  position: relative !important;
  pointer-events: none !important;
  user-select: none !important;
  cursor: wait !important;
  
  /* Pressed state effect */
  transform: translateY(1.5px) scale(0.97) !important;
  opacity: 0.8 !important;
  filter: saturate(0.9);
  transition: all var(--transition-fast) !important;
  overflow: hidden;
}

.is-executing::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    90deg, 
    transparent 0%, 
    hsl(0 0% 100% / 0.2) 25%, 
    hsl(0 0% 100% / 0.5) 50%, 
    hsl(0 0% 100% / 0.2) 75%, 
    transparent 100%
  );
  background-size: 200% 100%;
  animation: executing-shimmer 2.5s infinite linear;
  z-index: 5;
}

@keyframes executing-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ==========================================================================
   Component: Team Switcher
   ========================================================================== */

#team-switcher {
  position: relative;
  display: flex;
  align-items: center;
  
  & select {
    padding: var(--space-2) var(--space-4);
    padding-inline-end: var(--space-6);
    background: var(--surface-raised);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-semibold);
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 0 1px 2px hsl(220 20% 10% / 0.05);
    
    &:hover {
      background: white;
      border-color: var(--accent);
      box-shadow: 0 2px 4px hsl(220 20% 10% / 0.08);
      transform: translateY(-1px);
    }
    
    &:focus-visible {
      outline: none;
      border-color: var(--accent);
      box-shadow: var(--focus-ring);
    }
    
    &:active {
      transform: translateY(0);
    }
  }
}

/* ==========================================================================
   Component: Context Menu
   ========================================================================== */

#context-menu-anchor {
  position: fixed;
  anchor-name: --context-menu-anchor;
  top: attr(y px, 0);
  left: attr(x px, 0);
}

#context-menu {
  position: fixed;
  position-anchor: --context-menu-anchor;
  position-area: bottom right;
  position-try: flip-block, flip-inline;
  min-inline-size: 12rem;
  background: var(--surface-0);
  border: 0px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 0;
  font-size: 0.875rem;
  z-index: 1000;
  transition: inline-size var(--transition-base), block-size var(--transition-base);
  
  & input {
    margin: var(--space-1) var(--space-2);
    block-size: 2.5rem;
  }
  
  & menu {
    list-style: none;
    margin: var(--space-1);
    padding: 0;
    max-block-size: 70vh;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
    animation: fade-in var(--transition-base);
    
    &::-webkit-scrollbar {
      inline-size: 8px;
    }
    
    &::-webkit-scrollbar-thumb {
      background: var(--border);
      border-radius: var(--radius-full);
    }
    
    & > li {
      display: flex;
      align-items: center;
      gap: var(--space-2);
      padding: var(--space-2) var(--space-3);
      margin-inline: var(--space-1);
      color: var(--text-primary);
      cursor: pointer;
      border-radius: var(--radius-sm);
      transition: background var(--transition-fast), color var(--transition-fast);
      
      &:hover {
        background: var(--accent-soft);
        color: var(--accent);
        
        & > span.mdi {
          color: var(--accent);
        }
      }
      
      & > span.mdi {
        inline-size: 1.25rem;
        text-align: center;
        color: var(--text-secondary);
        transition: color var(--transition-fast);
      }
      
      & .menu-note {
        margin-inline-start: auto;
        font-size: 0.75rem;
        color: var(--text-tertiary);
        font-style: italic;
      }
      
      &.divider {
        display: flex;
        align-items: center;
        padding-block: var(--space-1);
        font-size: 0.6875rem;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        color: var(--text-tertiary);
        cursor: default;
        pointer-events: none;
        
        &::before,
        &::after {
          content: "";
          flex: 1;
          border-block-start: 1px solid var(--border-subtle);
        }
        
        &::before {
          margin-inline-end: var(--space-2);
        }
        
        &::after {
          margin-inline-start: var(--space-2);
        }
        
        &:hover {
          background: transparent;
          color: var(--text-tertiary);
        }
      }
      
       &.has-submenu {
         flex-wrap: wrap;
         padding-inline-end: var(--space-5);
         position: relative;

         &::after {
           position: absolute;
           inset-inline-end: var(--space-2);
           inset-block-start: var(--space-2);
           font-size: 1.125rem;
           color: var(--text-secondary);
           transition: transform var(--transition-base), color var(--transition-fast);
         }
        
        &.submenu-active::after {
          transform: rotate(90deg);
          color: var(--accent);
        }
      }
    }
    
    & menu.sub-menu {
      list-style: none;
      margin: 0;
      max-block-size: 0;
      overflow: hidden;
      background: var(--surface-raised);
      border-radius: var(--radius-sm);
      width: 100%;
      transition: max-block-size var(--transition-base);
      
      & > li {
        padding-inline-start: var(--space-5);
        margin-inline: 0;
      }
    }
    
     & li.has-submenu.submenu-active > menu.sub-menu {
       max-block-size: 31.25rem;
       padding: var(--space-1);
     }
   }
   
   & .filter-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border-block-start: 1px solid var(--border-subtle);
    
    & search {
      position: relative;
      display: flex;
      align-items: center;
      
      &::before {
        content: none;
      }
      
      & input[type="search"] {
        padding-inline-start: var(--space-6);
        
        &::-webkit-search-cancel-button,
        &::-webkit-search-decoration {
          -webkit-appearance: none;
        }
      }
    }
    
    & ul {
      list-style: none;
      padding: 0;
      margin: 0;
      gap: 0;
      max-block-size: 14rem;
      overflow: auto;
      scrollbar-gutter: stable;
      
      &::-webkit-scrollbar {
        inline-size: 6px;
      }
      
      &::-webkit-scrollbar-thumb {
        background: var(--border);
        border-radius: var(--radius-full);
      }
      
      &[loading] {
        min-block-size: 6rem;
        display: grid;
        place-items: center;
        
        & > li {
          display: none;
        }
      }
    }
    
    & .spinner {
      inline-size: 1.5rem;
      block-size: 1.5rem;
      border: 3px solid var(--border);
      border-block-start-color: var(--accent);
      border-radius: var(--radius-full);
      animation: spin 1s linear infinite;
    }
    
    & li {
      display: flex;
      align-items: center;
      gap: var(--space-2);
      padding: var(--space-2);
      border-radius: var(--radius-sm);
      transition: background var(--transition-fast);
      
      &:has(label):is(:hover, :focus-within) {
        background: var(--accent-soft);
      }
      
      &:not(:has(label)) {
        cursor: pointer;
        
        &:hover {
          background: var(--surface-raised);
        }
      }
      
      & label {
        display: flex;
        align-items: center;
        gap: var(--space-2);
        inline-size: 100%;
        cursor: pointer;
      }
      
      & input[type="checkbox"] {
        inline-size: 1.125rem;
        block-size: 1.125rem;
      }
    }
    
    & footer {
      display: flex;
      justify-content: flex-end;
      gap: var(--space-2);
      padding-block-start: var(--space-2);
      border-block-start: 1px solid var(--border-subtle);
      
      & button {
        font-size: 0.8125rem;
        padding: var(--space-1) var(--space-3);
        
        &.secondary {
          background: transparent;
          color: var(--text-secondary);
          
          &:hover {
            background: var(--surface-raised);
            color: var(--text-primary);
          }
        }
      }
    }
  }
}

/* Mobile: Context Menu centered overlay */
@media (hover: none) and (pointer: coarse) {
  #context-menu {
    position: fixed;
    position-anchor: unset;
    position-area: unset;
    position-try: unset;
    inset: 0;
    margin: auto;
    inline-size: calc(100vw - var(--space-6));
    max-inline-size: 24rem;
    max-block-size: calc(100dvh - var(--space-6));
    overflow-y: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    
    &::backdrop {
      background: hsl(220 20% 10% / 0.5);
      backdrop-filter: blur(4px);
    }
    
    & menu {
      max-block-size: none;
      overflow-y: visible;
    }
  }
}

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(-0.25rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes copy-success {
  0% {
    transform: scale(0.95);
  }
  40% {
    transform: scale(1.15);
  }
  100% {
    transform: scale(1);
  }
}

/* ==========================================================================
   Component: Dynamic Island
   ========================================================================== */

#dynamic-island {
  position: absolute;
  inset-block-start: var(--space-3);
  inset-inline-start: 50%;
  transform: translateX(-50%) scale(0.96);
  z-index: 100;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: hsl(220 10% 12%);
  color: white;
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 20px hsl(220 20% 10% / 0.3);
  white-space: nowrap;
  visibility: hidden;
  opacity: 0;
  transition: visibility 0s linear 0.2s, opacity var(--transition-base), transform var(--transition-base);
  
  &.visible {
    visibility: visible;
    opacity: 1;
    transform: translateX(-50%) scale(1);
    transition-delay: 0s;
  }
  
  & .icon {
    font-size: 1.125rem;
  }
  
  & p {
    font-weight: var(--font-weight-medium);
    font-size: 0.9375rem;
  }
  
  & > button[popovertarget] {
    anchor-name: --island-menu-trigger;
    padding: var(--space-1) var(--space-2);
    background: hsl(0 0% 100% / 0.1);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    transition: background var(--transition-base);
    margin-inline-start: auto;
    
    &:hover {
      background: hsl(0 0% 100% / 0.2);
    }
  }
  
  @media (max-width: 480px) {
    inset-inline-start: var(--space-4);
    inset-inline-end: var(--space-4);
    transform: translateX(0) scale(0.96);
    max-inline-size: calc(100vw - var(--space-4) * 2);
    
    &.visible {
      transform: translateX(0) scale(1);
    }
  }
}

menu[popover]#island-menu {
  position: fixed;
  inset-block-start: calc(var(--space-3) + var(--space-2) + 2.5rem);
  inset-inline-start: 50%;
  transform: translateX(-50%) translateY(-0.5rem) scale(0.96);
  min-inline-size: 10rem;
  padding: var(--space-2);
  background: hsl(220 10% 15%);
  color: white;
  border: 1px solid hsl(0 0% 100% / 0.1);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  list-style: none;
  margin: 0;
  flex-direction: column;
  opacity: 0;
  transition: opacity var(--transition-base), transform var(--transition-base);
  z-index: 101;
  
  &:popover-open {
    opacity: 1;
    transform: translateX(-50%) translateY(0) scale(1);
  }
  
  &::backdrop {
    background: transparent;
  }
  
  & li {
    margin: 0;
    padding: 0;
    
    & button {
      display: block;
      inline-size: 100%;
      padding: var(--space-2) var(--space-3);
      background: none;
      border: none;
      color: white;
      text-align: start;
      border-radius: var(--radius-sm);
      font-size: 0.875rem;
      transition: background var(--transition-fast);
      
      &:hover {
        background: hsl(0 0% 100% / 0.1);
      }
      
      &.destructive {
        color: var(--danger);
      }
    }
  }
  
  & hr {
    border: none;
    border-block-start: 1px solid hsl(0 0% 100% / 0.1);
    margin-block: var(--space-2);
  }
  
  @media (max-width: 768px) {
    inset-inline-start: var(--space-4);
    inset-inline-end: var(--space-4);
    transform: translateX(0) translateY(-0.5rem) scale(0.96);
    min-inline-size: auto;
    
    &:popover-open {
      transform: translateX(0) translateY(0) scale(1);
    }
  }
}

/* ==========================================================================
   Component: Tag / Badge
   ========================================================================== */

.tag {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  margin: var(--space-1);
  font-size: 0.875rem;
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  white-space: nowrap;
  
  &.primary {
    color: white;
    background: var(--accent);
    border-color: var(--accent);
  }
  
  &.processing {
    background-image: linear-gradient(
      60deg,
      transparent 35%,
      hsl(0 0% 100% / 0.6) 50%,
      transparent 65%
    );
    background-size: 200% 100%;
    background-repeat: no-repeat;
    background-position: -200% 0;
    animation: laser-scan 1.5s infinite linear;
  }
}

@keyframes laser-scan {
  to {
    background-position: 200% 0;
  }
}

/* ==========================================================================
   Component: Account Badge
   ========================================================================== */

.account-badge {
  --size: 2.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--size);
  height: var(--size);
  border-radius: 50%;
  font-weight: var(--font-weight-semibold);
  font-size: clamp(0.875rem, calc(var(--size) / 3.5), 1.125rem);
  line-height: 1;
  color: white;
  text-transform: uppercase;
  background: var(--avatar-gradient);
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  cursor: pointer;
  user-select: none;

  &:hover {
    transform: translateY(-0.5px);
    box-shadow: var(--shadow-md);
  }

  &:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring), var(--shadow-md);
  }

  &:active {
    transform: translateY(0);
  }

  &--large {
    --size: 3.5rem;
  }

  &--small {
    --size: 2rem;
  }
}

/* ==========================================================================
   Utilities
   ========================================================================== */

input[type="number"].input-number-short {
  display: inline-block;
  inline-size: 5em;
  max-inline-size: 100%;
  text-align: center;
  -moz-appearance: textfield;
  
  &::-webkit-outer-spin-button,
  &::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
  }
}

/* ==========================================================================
    Component: Tooltip
    ========================================================================== */

.tooltip {
  position: absolute;
  background: var(--text-primary);
  color: white;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  font-weight: var(--font-weight-medium);
  width: max-content;
  max-width: 200px;
  z-index: 10000;
  box-shadow: var(--shadow-md);
  word-wrap: break-word;
  white-space: normal;
  line-height: 1.4;
  pointer-events: none;
  animation: tooltip-fade-in var(--transition-fast);
  
  @media (prefers-reduced-motion: reduce) {
    animation: none;
  }
}

@keyframes tooltip-fade-in {
  from {
    opacity: 0;
    transform: translateY(-0.25rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}


/* ==========================================================================
   View Transitions
   ========================================================================== */

::view-transition-group(sheet-col-*) {
  animation-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  animation-duration: 300ms;
}

::view-transition-old(sheet-col-*),
::view-transition-new(sheet-col-*) {
  animation-name: none;
  opacity: 1;
}

/* ==========================================================================
    Component: Inbox - Two Column Layout
    ========================================================================== */

#inbox {
  display: flex;
  flex: 1;
  overflow: hidden;
  background: var(--surface-0);
  min-block-size: 0;

  /* ----- Sidebar / Message List ----- */
  & aside {
    display: flex;
    flex-direction: column;
    width: clamp(280px, 25vw, 380px);
    border-inline-end: 1px solid var(--border-subtle);
    background: var(--surface-1);
    overflow: hidden;
    flex-shrink: 0;

    & ul {
      display: flex;
      flex-direction: column;
      gap: 0;
      padding: 0;
      margin: 0;
      list-style: none;
      overflow-y: auto;
      flex: 1;
      
      /* Smooth scrolling with thin scrollbar */
      scrollbar-width: thin;
      scrollbar-color: var(--border) transparent;
      
      &::-webkit-scrollbar {
        inline-size: 6px;
      }
      
      &::-webkit-scrollbar-thumb {
        background: var(--border);
        border-radius: var(--radius-full);
      }

      & li {
        position: relative;
        border-block-end: 1px solid var(--border-subtle);

        &:hover button {
          background: var(--surface-2);
        }

        &.selected button {
          background: var(--accent-soft);
          border-inline-start: 3px solid var(--accent);

          & :where(strong, small) {
            font-weight: var(--font-weight-semibold);
          }
        }

        &.unread {
          background: var(--surface-0);

          & button strong,
          & button small {
            font-weight: var(--font-weight-semibold);
          }

          &::before {
            content: "";
            position: absolute;
            inset-inline-start: var(--space-2);
            inset-block-start: 50%;
            transform: translateY(-50%);
            inline-size: 0.5rem;
            block-size: 0.5rem;
            background: var(--accent);
            border-radius: var(--radius-full);
            animation: pulse-dot 1.5s ease-in-out infinite;
            z-index: 1;
          }
        }

        & button {
          width: 100%;
          padding: var(--space-3) var(--space-4);
          background: transparent;
          border: none;
          cursor: pointer;
          transition: background var(--transition-fast);
          user-select: none;
          display: flex;
          align-items: center;
          gap: var(--space-3);
          text-align: start;
          /* Touch-friendly minimum height */
          min-block-size: 4rem;

          & .avatar {
            width: 2.75rem;
            height: 2.75rem;
            min-width: 2.75rem;
            border-radius: var(--radius-md);
            background: var(--avatar-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: var(--font-weight-semibold);
            font-size: 1rem;
            text-transform: uppercase;
            box-shadow: 0 1px 3px hsl(215 90% 52% / 0.2);
            flex-shrink: 0;
          }

          & > div {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: 0.125rem;

            & strong {
              font-size: 0.9375rem;
              color: var(--text-primary);
              font-weight: var(--font-weight-medium);
              display: block;
              white-space: nowrap;
              overflow: hidden;
              text-overflow: ellipsis;
            }

            & small {
              font-size: 0.8125rem;
              color: var(--text-secondary);
              font-weight: var(--font-weight-normal);
              display: block;
              white-space: nowrap;
              overflow: hidden;
              text-overflow: ellipsis;
            }

            & time {
              font-size: 0.75rem;
              color: var(--text-tertiary);
              font-weight: var(--font-weight-normal);
              white-space: nowrap;
            }
          }
        }
      }
    }
  }

  /* ----- Article / Message Detail ----- */
  & article {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: auto;
    padding: var(--space-5);
    min-inline-size: 0;
    
    /* Smooth scrolling */
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
    
    &::-webkit-scrollbar {
      inline-size: 8px;
    }
    
    &::-webkit-scrollbar-thumb {
      background: var(--border);
      border-radius: var(--radius-full);
    }

    & > div {
      display: flex;
      flex-direction: column;
      max-inline-size: 48rem;

      /* Empty state - no message selected */
      &:not(:has(header)) {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        flex: 1;
        text-align: center;
        padding: var(--space-6);

        & > span {
          font-size: 3rem;
          margin-bottom: var(--space-4);
          opacity: 0.6;
          display: block;
        }

        & h2 {
          font-size: 1.25rem;
          margin-bottom: var(--space-2);
          color: var(--text-primary);
        }

        & p {
          max-width: 24rem;
          color: var(--text-secondary);
          font-size: 0.9375rem;
          line-height: 1.5;
        }
      }

      /* Message detail view */
      &:has(header) {
        gap: var(--space-4);

        & header {
          display: grid;
          grid-template-columns: auto 1fr auto;
          grid-template-rows: auto auto;
          gap: var(--space-2) var(--space-3);
          padding-block-end: var(--space-4);
          border-block-end: 1px solid var(--border-subtle);

          & .avatar {
            width: 3rem;
            height: 3rem;
            min-width: 3rem;
            flex-shrink: 0;
            border-radius: var(--radius-md);
            background: var(--avatar-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: var(--font-weight-semibold);
            font-size: 1.125rem;
            text-transform: uppercase;
            box-shadow: 0 2px 6px hsl(215 90% 52% / 0.25);
            grid-row: 1 / -1;
            align-self: start;
          }

          & > div {
            display: flex;
            flex-direction: column;
            gap: 0.125rem;
            min-width: 0;
            grid-column: 2;
            grid-row: 1 / -1;
            align-self: center;

            & h2 {
              font-size: 1rem;
              color: var(--text-primary);
              margin: 0;
              /* Allow wrapping on mobile */
              word-wrap: break-word;
              overflow-wrap: break-word;
            }

            & p {
              color: var(--text-secondary);
              font-size: 0.875rem;
              margin: 0;
              white-space: nowrap;
              overflow: hidden;
              text-overflow: ellipsis;
            }
          }

          & time {
            font-size: 0.8125rem;
            color: var(--text-tertiary);
            white-space: nowrap;
            grid-column: 3;
            grid-row: 1;
            align-self: start;
          }
          
          /* Mobile: stack time below */
          @media (max-width: 480px) {
            grid-template-columns: auto 1fr;
            
            & time {
              grid-column: 2;
              grid-row: 2;
              justify-self: start;
              margin-block-start: var(--space-1);
            }
          }
        }

        /* Message body */
        & > div:last-child {
          color: var(--text-primary);
          font-size: 1rem;
          line-height: 1.7;
          white-space: pre-wrap;
          word-wrap: break-word;
        }

        &.unread {
          & header {
            & > div h2,
            & > div p {
              font-weight: var(--font-weight-semibold);
            }
          }
        }
      }
    }
  }
  
  /* =========================================================================
     Mobile - Stack Layout with View Switching
     ========================================================================= */
  @media (max-width: 640px) {
    /* Mobile uses full-screen views that switch */
    position: relative;
    
    & aside {
      position: absolute;
      inset: 0;
      width: 100%;
      border-inline-end: none;
      z-index: 1;
      transition: transform var(--transition-base) cubic-bezier(0.4, 0, 0.2, 1);
      
      & ul li button {
        padding: var(--space-3) var(--space-4);
        min-block-size: 4.5rem;
        gap: var(--space-3);
        
        & .avatar {
          width: 3rem;
          height: 3rem;
          min-width: 3rem;
        }
        
        & > div {
          gap: 0.25rem;
          
          & strong {
            font-size: 1rem;
          }
          
          & small {
            font-size: 0.875rem;
          }
        }
      }
    }
    
    & article {
      position: absolute;
      inset: 0;
      padding: 0;
      background: var(--surface-0);
      z-index: 2;
      transform: translateX(100%);
      transition: transform var(--transition-base) cubic-bezier(0.4, 0, 0.2, 1);
      display: flex;
      flex-direction: column;
      
      /* Mobile navigation bar with back button */
      & > nav.mobile-nav {
        display: flex;
        align-items: center;
        gap: var(--space-2);
        padding: var(--space-2) var(--space-3);
        background: var(--surface-1);
        border-block-end: 1px solid var(--border-subtle);
        flex-shrink: 0;
        min-block-size: 3.5rem;
        position: sticky;
        inset-block-start: 0;
        z-index: 5;
        
        & button.back-button {
          display: flex;
          align-items: center;
          justify-content: center;
          gap: var(--space-1);
          padding: var(--space-2);
          background: transparent;
          border: none;
          border-radius: var(--radius-sm);
          color: var(--accent);
          font-size: 0.9375rem;
          font-weight: var(--font-weight-medium);
          cursor: pointer;
          min-inline-size: 2.75rem;
          min-block-size: 2.75rem;
          margin-inline-start: calc(-1 * var(--space-2));
          transition: background var(--transition-fast);
          
          & iconify-icon {
            font-size: 1.5rem;
          }
          
          &:active {
            background: var(--accent-softer);
          }
        }
        
        & .nav-title {
          flex: 1;
          font-size: 1rem;
          font-weight: var(--font-weight-semibold);
          color: var(--text-primary);
          white-space: nowrap;
          overflow: hidden;
          text-overflow: ellipsis;
          text-align: center;
          padding-inline-end: 2.75rem; /* Balance the back button */
        }
      }
      
      & > div {
        flex: 1;
        overflow-y: auto;
        padding: var(--space-4);
        max-inline-size: none;
        
        &:not(:has(header)) {
          display: none;
        }
        
        &:has(header) {
          & header {
            /* Mobile: 2 columns, time goes below */
            grid-template-columns: auto 1fr;
            gap: var(--space-2) var(--space-3);
            
            & > div {
              grid-column: 2;
              grid-row: 1;
              
              & h2 {
                font-size: 0.9375rem;
                line-height: 1.3;
              }
              
              & p {
                font-size: 0.8125rem;
              }
            }
            
            & time {
              grid-column: 2;
              grid-row: 2;
              justify-self: start;
            }
            
            & .avatar {
              width: 2.75rem;
              height: 2.75rem;
              min-width: 2.75rem;
            }
          }
        }
      }
    }
    
    /* When a message is selected, show article view */
    &.detail-view,
    &:has(li.selected) {
      & aside {
        transform: translateX(-100%);
      }
      
      & article {
        transform: translateX(0);
      }
    }
  }
  
  /* Tablet - narrower sidebar */
  @media (min-width: 641px) and (max-width: 1024px) {
    & aside {
      width: clamp(260px, 30vw, 320px);
    }
    
    & article {
      padding: var(--space-4);
    }
  }
  
  /* Desktop - hide mobile nav */
  @media (min-width: 641px) {
    & article > nav.mobile-nav {
      display: none;
    }
  }
}

@keyframes pulse-dot {
  0%, 100% {
    opacity: 1;
    transform: translateY(-50%) scale(1);
  }
  50% {
    opacity: 0.5;
    transform: translateY(-50%) scale(1.2);
  }
}

article {
  padding: var(--space-5);
  background: white;

  & header {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: start;
    gap: var(--space-2) var(--space-4);
    padding-block-end: var(--space-4);
    border-block-end: 1px solid var(--border-subtle);
    margin-block-end: var(--space-5);

    & > :first-child {
      width: 3.5rem;
      height: 3.5rem;
      min-width: 3.5rem;
      border-radius: var(--radius-lg);
      background: var(--avatar-gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      font-weight: var(--font-weight-semibold);
      font-size: 1.25rem;
      text-transform: uppercase;
      box-shadow: 0 2px 6px hsl(215 90% 52% / 0.3);
      grid-row: 1 / 3;
    }

    & > :nth-child(2) {
      display: flex;
      flex-direction: column;
      gap: var(--space-1);
      min-width: 0;
      grid-column: 2;

      & h2 {
        font-size: 1.0625rem;
        color: var(--text-primary);
        margin: 0;
        word-wrap: break-word;
        overflow-wrap: break-word;
      }

      & p {
        color: var(--text-secondary);
        font-size: 0.9375rem;
        margin: 0;
      }
    }

    & time {
      font-size: 0.875rem;
      color: var(--text-tertiary);
      white-space: nowrap;
      grid-column: 3;
      grid-row: 1;
    }
  }

  & h3 {
    margin-bottom: var(--space-4);
    color: var(--text-primary);
    font-size: 1.125rem;
  }

  & pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
    font-family: var(--font-sans);
    margin-bottom: var(--space-5);
  }

  /* ==========================================================================
      Component: Message Actions (nested within article)
      ========================================================================== */

   & menu {
     display: flex;
     flex-direction: row;
     gap: var(--space-3);
     margin-top: var(--space-5);
     list-style: none;
     padding: 0;
     margin: 0;
     align-items: center;
     justify-content: flex-start;

    & li {
      display: contents;
    }

    & button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: var(--space-1);
      padding: var(--space-2) var(--space-3);
      background: var(--surface-1);
      color: var(--text-primary);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      font-size: 0.875rem;
      font-weight: var(--font-weight-medium);
      cursor: pointer;
      user-select: none;
      transition: all var(--transition-fast);
      white-space: nowrap;
      
      & .mdi {
        font-size: 1rem;
      }

      &:hover {
        background: white;
        border-color: var(--accent);
        color: var(--accent);
        box-shadow: 0 1px 2px hsl(220 20% 10% / 0.04);
      }

      &:focus-visible {
        outline: none;
        box-shadow: var(--focus-ring);
      }

      &:active {
        transform: translateY(1px);
      }

      &[data-variant="primary"] {
        background: var(--accent);
        color: white;
        border-color: var(--accent);

        &:hover {
          background: var(--accent-hover);
          border-color: var(--accent-hover);
          box-shadow: 0 2px 4px hsl(215 90% 52% / 0.12);
        }
      }

      &[data-variant="danger"] {
        color: var(--text-secondary);
        border-color: var(--border);

        &:hover {
          background: var(--danger-soft);
          border-color: var(--danger);
          color: var(--danger);
        }
      }

      &:disabled {
        opacity: 0.5;
        cursor: not-allowed;
      }
    }

    @media (max-width: 768px) {
      flex-wrap: wrap;

      & button {
        flex: 1;
        min-width: 6rem;
      }
    }
  }
}

/* ==========================================================================
   Mobile: Article Header Responsive
   ========================================================================== */

@media (max-width: 640px) {
  article header,
  #inbox article header {
    grid-template-columns: auto 1fr;
    gap: var(--space-2) var(--space-3);
    
    & > :first-child,
    & .avatar {
      grid-row: 1 / 3;
      width: 2.75rem;
      height: 2.75rem;
      min-width: 2.75rem;
      font-size: 1rem;
    }
    
    & > :nth-child(2),
    & > div:not(.avatar) {
      grid-column: 2;
      grid-row: 1;
      
      & h2 {
        font-size: 0.9375rem;
        line-height: 1.4;
      }
      
      & p {
        font-size: 0.8125rem;
      }
    }
    
    & time {
      grid-column: 2;
      grid-row: 2;
      font-size: 0.75rem;
    }
  }
}

/* ==========================================================================
   Component: Login Form
   ========================================================================== */

section#login-form {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-block-size: 100dvh;
  padding: var(--space-5);
  background: linear-gradient(135deg, 
    hsl(220 15% 98%) 0%, 
    hsl(215 90% 52% / 0.03) 50%,
    hsl(220 15% 98%) 100%);
  position: relative;
  overflow: hidden;
  
  /* Animated background pattern */
  &::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: 
      radial-gradient(circle at 20% 80%, hsl(215 90% 52% / 0.04) 0%, transparent 50%),
      radial-gradient(circle at 80% 20%, hsl(180 90% 55% / 0.04) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
  }
  
  /* Ensure content above background */
  & > * {
    position: relative;
    z-index: 1;
  }
  
  /* Logo icon */
  & > iconify-icon {
    font-size: 4rem;
    color: var(--text-primary);
    margin-block-end: var(--space-4);
    line-height: 1;
  }
  
  /* Heading styles */
  & h1 {
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-block-end: var(--space-6);
    text-align: center;
    line-height: 1.2;
    letter-spacing: -0.02em;
  }
  
  /* Google Sign-In Button */
  & button#signIn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-6);
    background: white;
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-medium);
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
    min-inline-size: 16rem;
    min-block-size: 3rem;
    position: relative;
    overflow: hidden;
    
    /* Google logo icon */
    &::before {
      content: "";
      inline-size: 1.25rem;
      block-size: 1.25rem;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 48 48'%3E%3Cpath fill='%234285F4' d='M45.12 24.5c0-1.56-.14-3.06-.4-4.5H24v8.51h11.84c-.51 2.75-2.06 5.08-4.39 6.64v5.52h7.11c4.16-3.83 6.56-9.47 6.56-16.17z'/%3E%3Cpath fill='%2334A853' d='M24 46c5.94 0 10.92-1.97 14.56-5.33l-7.11-5.52c-1.97 1.32-4.49 2.1-7.45 2.1-5.73 0-10.58-3.87-12.31-9.07H4.34v5.7C7.96 41.07 15.4 46 24 46z'/%3E%3Cpath fill='%23FBBC05' d='M11.69 28.18C11.25 26.86 11 25.45 11 24s.25-2.86.69-4.18v-5.7H4.34C2.85 17.09 2 20.45 2 24c0 3.55.85 6.91 2.34 9.88l7.35-5.7z'/%3E%3Cpath fill='%23EA4335' d='M24 10.75c3.23 0 6.13 1.11 8.41 3.29l6.31-6.31C34.91 4.18 29.93 2 24 2 15.4 2 7.96 6.93 4.34 14.12l7.35 5.7c1.73-5.2 6.58-9.07 12.31-9.07z'/%3E%3C/svg%3E");
      background-size: contain;
      background-repeat: no-repeat;
      background-position: center;
      flex-shrink: 0;
      transition: transform var(--transition-base);
    }
    
    &:hover {
      background: var(--surface-0);
      border-color: var(--accent);
      box-shadow: var(--shadow-md);
      transform: translateY(-1px);
      
      &::before {
        transform: scale(1.05);
      }
    }
    
    &:focus-visible {
      outline: none;
      border-color: var(--accent);
      box-shadow: var(--focus-ring), var(--shadow-sm);
    }
    
    &:active {
      transform: translateY(0);
      box-shadow: var(--shadow-sm);
    }
    
    /* Loading state - add via JS: button.setAttribute('aria-busy', 'true') */
    &[aria-busy="true"] {
      pointer-events: none;
      color: transparent;
      
      &::before {
        opacity: 0;
      }
      
      &::after {
        content: "";
        position: absolute;
        inset-block-start: 50%;
        inset-inline-start: 50%;
        transform: translate(-50%, -50%);
        inline-size: 1.25rem;
        block-size: 1.25rem;
        border: 2px solid var(--border);
        border-block-start-color: var(--accent);
        border-radius: var(--radius-full);
        animation: spin 0.8s linear infinite;
      }
    }
    
    &:disabled {
      opacity: 0.5;
      cursor: not-allowed;
      transform: none;
    }
  }
  
  /* Hidden auth form */
  & form#authForm {
    display: none;
  }
  
  /* Footer with links */
  & footer {
    margin-block-start: var(--space-5);
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-secondary);
    
    & a {
      color: var(--accent);
      font-weight: var(--font-weight-medium);
      
      &:hover {
        text-decoration: underline;
      }
    }
  }
  
  /* Divider */
  & hr {
    inline-size: 100%;
    max-inline-size: 16rem;
    margin-block: var(--space-4);
    border: none;
    border-block-start: 1px solid var(--border-subtle);
    position: relative;
    
    &[data-content]::after {
      content: attr(data-content);
      position: absolute;
      inset-block-start: 50%;
      inset-inline-start: 50%;
      transform: translate(-50%, -50%);
      padding-inline: var(--space-3);
      background: hsl(220 15% 98%);
      color: var(--text-tertiary);
      font-size: 0.875rem;
    }
  }
  
  /* Mobile */
  @media (max-width: 480px) {
    padding: var(--space-4);
    
    & h1 {
      font-size: 1.5rem;
      margin-block-end: var(--space-5);
    }
    
    & button#signIn {
      min-inline-size: 100%;
    }
  }
}