/**
 * TradLab Mobile Ecosystem Dock v1.0
 * Phase: MOBILE-1
 *
 * Shared mobile navigation geometry only.
 * Product routes and capability truth remain app-owned.
 */

:root {
  --tl-mobile-dock-height: 4.25rem;
  --tl-mobile-dock-inline-inset: var(--tl-space-3);
  --tl-mobile-dock-bottom-offset: var(--tl-space-3);
  --tl-mobile-dock-radius: var(--tl-radius-2xl);
  --tl-mobile-dock-icon-size: 1.25rem;
  --tl-mobile-dock-reserved-space: calc(
    var(--tl-mobile-dock-height)
    + var(--tl-space-6)
    + env(safe-area-inset-bottom)
  );
}

.tl-mobile-dock,
.tl-mobile-sheet {
  display: none;
}

body[data-tl-mobile-sheet-lock="true"] {
  overflow: hidden;
  overscroll-behavior: none;
}

@media (max-width: 720px) {
  .tl-app-frame[data-mobile-dock="visible"] .tl-main {
    padding-block-end: var(--tl-mobile-dock-reserved-space);
    scroll-padding-block-end: var(--tl-mobile-dock-reserved-space);
  }

  .tl-mobile-dock {
    position: fixed;
    inset-inline: var(--tl-mobile-dock-inline-inset);
    inset-block-end: max(
      var(--tl-mobile-dock-bottom-offset),
      env(safe-area-inset-bottom)
    );
    z-index: calc(var(--tl-z-sticky) + 2);
    display: none;
    pointer-events: none;
  }

  .tl-app-frame[data-mobile-dock="visible"][data-mobile-dock-ready="true"] .tl-mobile-dock {
    display: block;
  }

  .tl-app-frame[data-mobile-dock="hidden"] .tl-mobile-dock,
  .tl-app-frame[data-mobile-keyboard="open"] .tl-mobile-dock,
  .tl-mobile-dock[hidden] {
    display: none;
  }

  .tl-app-frame[data-mobile-keyboard="open"][data-mobile-dock="visible"] .tl-main {
    padding-block-end: var(--tl-space-4);
    scroll-padding-block-end: var(--tl-space-4);
  }

  .tl-mobile-dock__surface {
    min-block-size: var(--tl-mobile-dock-height);
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    align-items: stretch;
    gap: var(--tl-space-1);
    padding: 0.375rem;
    border: 1px solid var(--tl-border-default);
    border-radius: var(--tl-mobile-dock-radius);
    background: color-mix(in srgb, var(--tl-bg-surface-overlay) 90%, transparent);
    box-shadow: var(--tl-shadow-lg);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    pointer-events: auto;
  }

  .tl-mobile-dock__item {
    min-inline-size: 0;
    min-block-size: 3rem;
    display: grid;
    grid-template-rows: 1.25rem auto;
    place-items: center;
    align-content: center;
    gap: 0.1875rem;
    padding: var(--tl-space-1) 0.125rem;
    border: 1px solid transparent;
    border-radius: var(--tl-radius-xl);
    background: transparent;
    color: var(--tl-text-muted);
    font: inherit;
    text-decoration: none;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    transition:
      background-color var(--tl-duration-fast) ease,
      border-color var(--tl-duration-fast) ease,
      color var(--tl-duration-fast) ease,
      transform var(--tl-duration-fast) ease;
  }

  .tl-mobile-dock__item:active {
    transform: translateY(1px);
  }

  .tl-mobile-dock__item[aria-current="page"],
  .tl-mobile-dock__item[data-active="true"] {
    border-color: var(--tl-border-accent);
    background: var(--tl-surface-accent);
    color: var(--tl-accent);
  }

  .tl-mobile-dock__item:focus-visible {
    outline: var(--tl-focus-width) solid var(--tl-focus-color);
    outline-offset: var(--tl-focus-offset);
  }

  .tl-mobile-dock__icon {
    inline-size: var(--tl-mobile-dock-icon-size);
    block-size: var(--tl-mobile-dock-icon-size);
    display: grid;
    place-items: center;
  }

  .tl-mobile-dock__icon svg {
    inline-size: 100%;
    block-size: 100%;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.7;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .tl-mobile-dock__label {
    max-inline-size: 100%;
    overflow: hidden;
    font-size: 0.6875rem;
    font-weight: var(--tl-font-weight-semibold);
    line-height: 1.15;
    text-align: center;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .tl-app-frame[data-mobile-dock="visible"][data-mobile-dock-ready="true"] .tl-topbar__mobile-menu {
    display: none;
  }

  .tl-mobile-sheet {
    position: fixed;
    inset: 0;
    z-index: var(--tl-z-modal);
    display: grid;
    align-items: end;
  }

  .tl-mobile-sheet[hidden] {
    display: none;
  }

  .tl-mobile-sheet__backdrop {
    position: absolute;
    inset: 0;
    border: 0;
    background: color-mix(in srgb, var(--tl-bg-canvas) 66%, transparent);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
  }

  .tl-mobile-sheet__panel {
    position: relative;
    z-index: 1;
    max-block-size: min(72dvh, 36rem);
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    overflow: hidden;
    padding-block-end: env(safe-area-inset-bottom);
    border: 1px solid var(--tl-border-default);
    border-block-end: 0;
    border-radius: var(--tl-radius-2xl) var(--tl-radius-2xl) 0 0;
    background: var(--tl-bg-surface-overlay);
    box-shadow: var(--tl-shadow-lg);
  }

  .tl-mobile-sheet__header {
    min-block-size: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--tl-space-3);
    padding: var(--tl-space-3) var(--tl-space-4);
    border-block-end: 1px solid var(--tl-border-subtle);
  }

  .tl-mobile-sheet__title {
    margin: 0;
    font-size: var(--tl-font-size-base);
    font-weight: var(--tl-font-weight-bold);
  }

  .tl-mobile-sheet__close {
    inline-size: 3rem;
    block-size: 3rem;
    display: grid;
    place-items: center;
    border: 0;
    border-radius: var(--tl-radius-lg);
    background: transparent;
    color: var(--tl-text-secondary);
    font: inherit;
    cursor: pointer;
  }

  .tl-mobile-sheet__close:focus-visible {
    outline: var(--tl-focus-width) solid var(--tl-focus-color);
    outline-offset: var(--tl-focus-offset);
  }

  .tl-mobile-sheet__nav {
    min-block-size: 0;
    display: grid;
    align-content: start;
    gap: var(--tl-space-2);
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: var(--tl-space-3) var(--tl-space-4) var(--tl-space-5);
  }

  .tl-mobile-sheet__item {
    min-block-size: 3rem;
    display: flex;
    align-items: center;
    gap: var(--tl-space-3);
    padding: var(--tl-space-3);
    border: 1px solid var(--tl-border-subtle);
    border-radius: var(--tl-radius-lg);
    background: var(--tl-bg-surface);
    color: var(--tl-text-secondary);
    text-decoration: none;
  }

  .tl-mobile-sheet__item[aria-current="page"] {
    border-color: var(--tl-border-accent);
    background: var(--tl-surface-accent);
    color: var(--tl-accent);
  }

  .tl-mobile-sheet__item:focus-visible {
    outline: var(--tl-focus-width) solid var(--tl-focus-color);
    outline-offset: var(--tl-focus-offset);
  }

  .tl-mobile-sheet__item-icon {
    inline-size: 1.25rem;
    block-size: 1.25rem;
    flex: 0 0 auto;
    display: grid;
    place-items: center;
  }

  .tl-mobile-sheet__item-icon svg {
    inline-size: 100%;
    block-size: 100%;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.7;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .tl-mobile-sheet__item-label {
    min-inline-size: 0;
    flex: 1 1 auto;
    font-weight: var(--tl-font-weight-semibold);
  }

  .tl-app-frame[data-mobile-sheet="open"] .tl-main,
  .tl-app-frame[data-mobile-sheet="open"] .tl-topbar,
  .tl-app-frame[data-mobile-sheet="open"] .tl-mobile-dock {
    pointer-events: none;
  }
}

@media (max-width: 360px) {
  .tl-mobile-dock {
    --tl-mobile-dock-inline-inset: var(--tl-space-2);
  }

  .tl-mobile-dock__surface {
    gap: 0;
    padding-inline: var(--tl-space-1);
  }

  .tl-mobile-dock__label {
    font-size: 0.625rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tl-mobile-dock__item {
    transition: none;
  }
}

@supports not (backdrop-filter: blur(1px)) {
  .tl-mobile-dock__surface {
    background: var(--tl-bg-surface-overlay);
  }
}

@media (max-width: 720px) and (hover: hover) and (pointer: fine) {
  .tl-mobile-dock__item:hover {
    color: var(--tl-text-secondary);
  }
}