/* ==========================================================================
   Collanduni — shell.css
   The app shell: rail, command bar, page frame, drawer, modal, palette, toast
   ========================================================================== */

.app {
  display: grid;
  grid-template-columns: var(--rail-w) minmax(0, 1fr);
  min-height: 100vh;
  transition: grid-template-columns var(--dur) var(--ease);
}

.app[data-rail="collapsed"] { grid-template-columns: var(--rail-w-collapsed) minmax(0, 1fr); }

/* The rail is sticky and 100vh tall, so on a long page the column behind it
   would show canvas colour once you scroll. Paint the column itself. */
@media (min-width: 1024px) {
  .app {
    background: linear-gradient(
      to right,
      var(--surface) 0,
      var(--surface) var(--rail-w),
      var(--canvas) var(--rail-w)
    );
  }
  .app[data-rail="collapsed"] {
    background: linear-gradient(
      to right,
      var(--surface) 0,
      var(--surface) var(--rail-w-collapsed),
      var(--canvas) var(--rail-w-collapsed)
    );
  }
}

/* ==========================================================================
   Left rail
   ========================================================================== */

.rail {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border-right: 1px solid var(--hairline);
  overflow: hidden;
}

.rail__head {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  height: var(--topbar-h);
  padding: 0 var(--s-4);
  border-bottom: 1px solid var(--hairline);
  flex: none;
}

/* Brand mark — three ascending signal bars. Not a square, not a clip-path tile. */
.brand { display: flex; align-items: center; gap: var(--s-3); min-width: 0; }

.brand__mark {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 20px;
  flex: none;
}
.brand__mark i {
  display: block;
  width: 4px;
  border-radius: 1.5px;
  background: var(--accent);
}
.brand__mark i:nth-child(1) { height: 8px;  opacity: 0.45; }
.brand__mark i:nth-child(2) { height: 14px; opacity: 0.72; }
.brand__mark i:nth-child(3) { height: 20px; }

.brand__word {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.0625rem;
  letter-spacing: -0.035em;
  line-height: 1.2;
  white-space: nowrap;
}

.rail__scroll {
  flex: 1;
  overflow-y: auto;
  padding: var(--s-4) var(--s-3);
  display: grid;
  gap: var(--s-5);
  align-content: start;
}
.rail__scroll::-webkit-scrollbar { width: 8px; }
.rail__scroll::-webkit-scrollbar-thumb { background: var(--hairline); border-radius: var(--r-pill); }

.navgroup { display: grid; gap: 2px; }

.navgroup__title {
  padding: 0 var(--s-3) var(--s-2);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--fg-faint);
  white-space: nowrap;
}

.navlink {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-2) var(--s-3);
  border-radius: var(--r-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--fg-soft);
  white-space: nowrap;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.navlink svg { width: 17px; height: 17px; flex: none; stroke-width: 1.7; }
.navlink:hover { background: var(--surface-3); color: var(--fg); }

.navlink[aria-current="page"] {
  background: var(--accent-wash);
  color: var(--accent);
  font-weight: 600;
}
/* Active marker rides the left edge — replaces a heavy filled pill */
.navlink[aria-current="page"]::before {
  content: "";
  position: absolute;
  left: calc(var(--s-3) * -1 + 1px);
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 18px;
  border-radius: var(--r-pill);
  background: var(--accent);
}

.navlink__tag {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 500;
  padding: 1px 6px;
  border-radius: var(--r-pill);
  background: var(--surface-3);
  color: var(--fg-mute);
}
.navlink__tag--live { background: var(--err-wash); color: var(--err); }

/* Usage meter pinned to the rail foot */
.rail__foot {
  flex: none;
  border-top: 1px solid var(--hairline);
  padding: var(--s-4);
  display: grid;
  gap: var(--s-3);
}

.usage { display: grid; gap: var(--s-2); }
.usage__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--s-2);
  font-size: var(--text-xs);
}
.usage__bar {
  height: 4px;
  border-radius: var(--r-pill);
  background: var(--surface-3);
  overflow: hidden;
}
.usage__fill {
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
  transition: width var(--dur-slow) var(--ease);
}

.userchip {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-2);
  border-radius: var(--r-md);
  width: 100%;
  text-align: left;
  transition: background var(--dur-fast) var(--ease);
}
.userchip:hover { background: var(--surface-3); }
.userchip__meta { min-width: 0; display: grid; }
.userchip__name {
  font-size: var(--text-sm);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.userchip__sub {
  font-size: var(--text-xs);
  color: var(--fg-mute);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* --- Collapsed rail ------------------------------------------------------ */
.app[data-rail="collapsed"] .brand__word,
.app[data-rail="collapsed"] .navgroup__title,
.app[data-rail="collapsed"] .navlink span,
.app[data-rail="collapsed"] .navlink__tag,
.app[data-rail="collapsed"] .usage,
.app[data-rail="collapsed"] .userchip__meta { display: none; }

.app[data-rail="collapsed"] .navlink { justify-content: center; padding-inline: 0; }
.app[data-rail="collapsed"] .rail__head { justify-content: center; padding-inline: 0; }
.app[data-rail="collapsed"] .rail__foot { justify-items: center; }
.app[data-rail="collapsed"] .userchip { justify-content: center; }

/* ==========================================================================
   Command bar (top)
   ========================================================================== */

.main { min-width: 0; display: flex; flex-direction: column; }

.cmdbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: var(--s-3);
  height: var(--topbar-h);
  padding: 0 var(--s-5);
  background: color-mix(in srgb, var(--canvas) 82%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--hairline);
}

.crumbs {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  font-size: var(--text-sm);
  color: var(--fg-mute);
  min-width: 0;
}
.crumbs b { color: var(--fg); font-weight: 600; }
.crumbs svg { width: 14px; height: 14px; opacity: 0.5; flex: none; }

.cmdbar__spacer { flex: 1; }

/* Search trigger — opens the ⌘K palette */
.searchtrigger {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  height: 34px;
  min-width: 240px;
  padding: 0 var(--s-2) 0 var(--s-3);
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  background: var(--surface);
  color: var(--fg-mute);
  font-size: var(--text-sm);
  transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.searchtrigger:hover { border-color: var(--fg-faint); color: var(--fg-soft); }
.searchtrigger svg { width: 15px; height: 15px; flex: none; }
.searchtrigger span { flex: 1; text-align: left; }

.kbd {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 500;
  padding: 2px 5px;
  border-radius: 5px;
  border: 1px solid var(--hairline);
  background: var(--surface-3);
  color: var(--fg-mute);
  line-height: 1.4;
}

.bell { position: relative; }
.bell::after {
  content: "";
  position: absolute;
  top: 7px; right: 8px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--err);
  border: 2px solid var(--canvas);
}

.avatar {
  border-radius: 50%;
  object-fit: cover;
  flex: none;
  background: var(--surface-3);
}
.avatar--sm { width: 26px; height: 26px; }
.avatar--md { width: 32px; height: 32px; }
.avatar--lg { width: 40px; height: 40px; }

.railtoggle { display: inline-flex; }

.railtoggle svg { transition: transform var(--dur) var(--ease); }
.app[data-rail="collapsed"] .railtoggle svg { transform: rotate(180deg); }

/* ==========================================================================
   Page frame
   ========================================================================== */

.page {
  flex: 1;
  padding: var(--s-6) var(--s-5) var(--s-7);
  display: grid;
  gap: var(--s-5);
  align-content: start;
  max-width: 1560px;
  width: 100%;
}

.pagehead {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--s-5);
  flex-wrap: wrap;
}

.pagehead__title { display: grid; gap: var(--s-2); }
.pagehead h1 { font-size: var(--text-2xl); letter-spacing: -0.03em; }
.pagehead__sub { font-size: var(--text-sm); color: var(--fg-mute); }
.pagehead__actions { display: flex; align-items: center; gap: var(--s-2); flex-wrap: wrap; }

/* Section header used inside the canvas */
.sechead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  margin-bottom: var(--s-4);
}
.sechead h2 { font-size: var(--text-md); letter-spacing: -0.02em; }
.sechead__meta { font-size: var(--text-xs); color: var(--fg-mute); }

/* ==========================================================================
   Slide-over drawer
   ========================================================================== */

.scrim {
  position: fixed;
  inset: 0;
  background: rgba(4, 8, 14, 0.62);
  backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur) var(--ease), visibility var(--dur) var(--ease);
  z-index: var(--z-drawer);
}
.scrim[data-open="true"] { opacity: 1; visibility: visible; }

.drawer {
  position: fixed;
  top: 0; right: 0;
  height: 100vh;
  width: min(440px, 100vw);
  background: var(--surface);
  border-left: 1px solid var(--hairline);
  box-shadow: var(--shadow-lg);
  transform: translateX(100%);
  transition: transform var(--dur) var(--ease);
  z-index: calc(var(--z-drawer) + 1);
  display: flex;
  flex-direction: column;
}
.drawer[data-open="true"] { transform: translateX(0); }

.drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-3);
  padding: var(--s-4) var(--s-5);
  border-bottom: 1px solid var(--hairline);
  flex: none;
}
.drawer__body { flex: 1; overflow-y: auto; padding: var(--s-5); display: grid; gap: var(--s-5); align-content: start; }
.drawer__foot {
  flex: none;
  padding: var(--s-4) var(--s-5);
  border-top: 1px solid var(--hairline);
  display: flex;
  gap: var(--s-2);
  justify-content: flex-end;
}

/* ==========================================================================
   Command palette (⌘K)
   ========================================================================== */

.palette {
  position: fixed;
  top: 14vh;
  left: 50%;
  transform: translate(-50%, -8px);
  width: min(560px, calc(100vw - 2rem));
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  z-index: calc(var(--z-modal) + 1);
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-fast) var(--ease),
              transform var(--dur-fast) var(--ease),
              visibility var(--dur-fast) var(--ease);
}
.palette[data-open="true"] { opacity: 1; visibility: visible; transform: translate(-50%, 0); }

.palette__input {
  width: 100%;
  height: 52px;
  padding: 0 var(--s-5);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--hairline);
  font-size: var(--text-md);
  color: var(--fg);
}
.palette__input:focus { outline: none; }
.palette__input::placeholder { color: var(--fg-faint); }

.palette__list { max-height: 320px; overflow-y: auto; padding: var(--s-2); }
.palette__group { padding: var(--s-3) var(--s-3) var(--s-1); }

.palette__item {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  width: 100%;
  padding: var(--s-2) var(--s-3);
  border-radius: var(--r-md);
  font-size: var(--text-sm);
  color: var(--fg-soft);
  text-align: left;
}
.palette__item svg { width: 16px; height: 16px; flex: none; color: var(--fg-mute); }
.palette__item:hover,
.palette__item[data-active="true"] { background: var(--accent-wash); color: var(--accent); }
.palette__item:hover svg,
.palette__item[data-active="true"] svg { color: var(--accent); }
.palette__item .kbd { margin-left: auto; }

.palette__empty { padding: var(--s-6); text-align: center; font-size: var(--text-sm); color: var(--fg-mute); }

/* ==========================================================================
   Toast
   ========================================================================== */

.toasts {
  position: fixed;
  bottom: var(--s-5);
  right: var(--s-5);
  z-index: var(--z-toast);
  display: grid;
  gap: var(--s-2);
  justify-items: end;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-3) var(--s-4);
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--ok);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-md);
  font-size: var(--text-sm);
  pointer-events: auto;
  animation: toast-in var(--dur) var(--ease);
}
.toast svg { width: 16px; height: 16px; color: var(--ok); flex: none; }

@keyframes toast-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: none; }
}

/* ==========================================================================
   Mobile — rail becomes an off-canvas drawer
   ========================================================================== */

.railscrim { display: none; }

@media (max-width: 1023px) {
  .app,
  .app[data-rail="collapsed"] { grid-template-columns: minmax(0, 1fr); }

  .rail {
    position: fixed;
    top: 0; left: 0;
    z-index: calc(var(--z-drawer) + 2);
    width: var(--rail-w);
    transform: translateX(-100%);
    transition: transform var(--dur) var(--ease);
  }
  .app[data-mobilenav="open"] .rail { transform: translateX(0); }

  /* Never render the collapsed-icon state on mobile */
  .app[data-rail="collapsed"] .brand__word,
  .app[data-rail="collapsed"] .navgroup__title,
  .app[data-rail="collapsed"] .navlink span,
  .app[data-rail="collapsed"] .navlink__tag,
  .app[data-rail="collapsed"] .usage,
  .app[data-rail="collapsed"] .userchip__meta { display: revert; }
  .app[data-rail="collapsed"] .navlink { justify-content: flex-start; padding-inline: var(--s-3); }
  .app[data-rail="collapsed"] .rail__head { justify-content: flex-start; padding-inline: var(--s-4); }

  .railscrim {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(4, 8, 14, 0.6);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--dur) var(--ease), visibility var(--dur) var(--ease);
    z-index: calc(var(--z-drawer) + 1);
  }
  .app[data-mobilenav="open"] .railscrim { opacity: 1; visibility: visible; }

  .page { padding: var(--s-5) var(--s-4) var(--s-6); }
  .cmdbar { padding: 0 var(--s-4); }
  .searchtrigger { min-width: 0; }
  .searchtrigger span, .searchtrigger .kbd { display: none; }

  /* Only the current page in the breadcrumb — the parent crumb wraps and
     crowds the bar at phone widths. */
  .crumbs > :not(b) { display: none; }
  .crumbs b { white-space: nowrap; }
}

@media (min-width: 1024px) {
  .mobileonly { display: none !important; }
}

@media (max-width: 640px) {
  .pagehead { align-items: flex-start; }
  .toasts { left: var(--s-4); right: var(--s-4); justify-items: stretch; }
}

/* ==========================================================================
   Account menu (auth.js)
   ========================================================================== */
.usermenu {
  position: fixed;
  z-index: var(--z-toast);
  min-width: 190px;
  padding: var(--s-3);
  display: grid;
  gap: var(--s-3);
  background: var(--surface-2);
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-md);
}
.usermenu__id {
  margin: 0;
  font-size: var(--text-xs);
  color: var(--fg-mute);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.usermenu .btn { width: 100%; justify-content: flex-start; }