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

html, body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 var(--font);
}

a { color: var(--accent); text-decoration: none; }

:focus-visible { outline: var(--focus); outline-offset: 2px; }

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

/* --- pressable --- */

.btn,
.rail-link:not([aria-disabled="true"]) {
  transition: transform var(--dur-press) var(--ease-out);
}

.btn:active,
.rail-link:not([aria-disabled="true"]):active {
  transform: scale(0.97);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  min-height: 36px;
  padding: 0 var(--s-4);
  border-radius: var(--r);
  border: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--text);
}

.btn-ghost {
  color: var(--muted);
}

.btn-go {
  background: var(--ok);
  border-color: var(--ok);
  color: #0b0e10;
  font-weight: 650;
}

.btn-danger {
  color: var(--danger);
  border-color: var(--danger);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

.btn:disabled:active {
  transform: none;
}

.toolbar-inline {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
}

.section-kicker {
  margin: 0 0 var(--s-2);
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.control-deck {
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--bg-up);
  padding: var(--s-4);
  margin-bottom: var(--s-5);
}

.control-facts {
  display: grid;
  gap: 2px;
  margin: 0 0 var(--s-4);
}

.control-facts p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.control-facts strong {
  color: var(--text);
  font-weight: 650;
}

.control-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  margin-top: var(--s-2) !important;
  font-size: 12px !important;
}

.control-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
}

.control-note {
  margin: var(--s-3) 0 0;
}

.pair-row {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: var(--s-3);
  align-items: end;
  margin-bottom: var(--s-5);
}

.pair-submit {
  min-height: 38px;
}

.search-slot {
  min-width: 10rem;
  min-height: 32px;
  padding: 0 var(--s-3);
  border: 1px solid var(--line);
  border-radius: var(--r);
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  opacity: 0.55;
  pointer-events: none;
  user-select: none;
}

label {
  display: flex;
  flex-direction: column;
  gap: var(--s-1);
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.02em;
}

input[type="text"],
input[type="password"],
textarea,
input[type="file"],
select {
  background: #090b0d;
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 0.5rem 0.65rem;
  color: var(--text);
}

textarea { resize: vertical; min-height: 8rem; }

.stack { display: flex; flex-direction: column; gap: var(--s-3); }

.muted { color: var(--muted); }
.hint { color: var(--muted); margin: 0 0 var(--s-4); font-size: 13px; }

code {
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 0.9em;
  color: #9fd4d4;
}

/* --- auth --- */

body.auth {
  display: grid;
  place-items: center;
  min-height: 100dvh;
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 48px 48px;
}

.auth-stage {
  width: min(22.5rem, calc(100vw - 2rem));
  padding: var(--s-4);
}

.auth-card {
  background: var(--bg-up);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: var(--s-6) var(--s-5) var(--s-5);
  transform-origin: center;
  opacity: 1;
  transform: scale(1);
  transition:
    opacity var(--dur-ui) var(--ease-out),
    transform var(--dur-ui) var(--ease-out);
}

@starting-style {
  .auth-card {
    opacity: 0;
    transform: scale(0.97);
  }
}

.auth-mark {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0;
  margin-bottom: var(--s-4);
}

.auth-card h1 {
  margin: 0 0 var(--s-1);
  font-size: 1.25rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.auth-card .btn-primary {
  width: 100%;
  margin-top: var(--s-2);
}

/* --- app shell --- */

body.app {
  display: grid;
  grid-template-columns: var(--rail) 1fr;
  min-height: 100dvh;
}

.rail {
  background: var(--bg-rail);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--s-3) 0 var(--s-4);
  gap: var(--s-2);
}

.rail-brand {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  color: var(--accent);
  border: 1px solid var(--line);
  border-radius: 7px;
  margin-bottom: var(--s-2);
  font-weight: 700;
  font-size: 13px;
}

.rail-brand:active { transform: scale(0.97); }
.rail-brand { transition: transform var(--dur-press) var(--ease-out); }

.rail-link {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  color: var(--muted);
  border-radius: 8px;
  border: 1px solid transparent;
}

.rail-link svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.rail-link[aria-current="page"] {
  color: var(--accent);
  background: rgb(61 191 191 / 0.1);
  border-color: rgb(61 191 191 / 0.25);
}

.rail-link[aria-disabled="true"] {
  opacity: 0.35;
  cursor: not-allowed;
}

.rail-gap { flex: 1; }

@media (hover: hover) and (pointer: fine) {
  .rail-link:not([aria-disabled="true"]):hover {
    background: var(--bg-up);
    color: var(--text);
  }

  .btn-go:hover {
    filter: brightness(1.08);
  }

  .btn-danger:hover {
    background: rgb(212 84 84 / 0.12);
  }
}

.workspace {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--bg);
}

.toolbar {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  min-height: 52px;
  padding: 0 var(--s-5);
  border-bottom: 1px solid var(--line);
  background: var(--bg-up);
}

.toolbar h1 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  flex: 1;
}

.toolbar-actions {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  flex-wrap: wrap;
}

.workspace-body {
  padding: var(--s-5);
  max-width: 1120px;
}

/* --- flashes --- */

.flash {
  margin: 0 0 var(--s-3);
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--line);
  border-left-width: 3px;
  border-radius: var(--r);
  background: var(--bg-up);
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity var(--dur-flash) ease,
    transform var(--dur-flash) ease;
}

@starting-style {
  .flash {
    opacity: 0;
    transform: translateY(-100%);
  }
}

.flash-ok { border-left-color: var(--ok); }
.flash-warn { border-left-color: var(--warn); }
.flash-bad { border-left-color: var(--danger); }

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}

.flash-bad {
  animation: shake 200ms var(--ease-out);
}

.auth-card .flash { margin-bottom: var(--s-3); }

/* --- import + tables --- */

.import-panel {
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: var(--s-4);
  margin-bottom: var(--s-5);
  background: var(--bg-up);
}

.session-table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

.session-table th,
.session-table td {
  text-align: left;
  height: var(--row);
  padding: 0 var(--s-3);
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}

.session-table th {
  color: var(--muted);
  font-weight: 550;
  font-size: 12px;
  letter-spacing: 0.03em;
}

@media (hover: hover) and (pointer: fine) {
  .session-table tbody tr:hover td {
    background: var(--bg-up);
  }
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  background: var(--muted);
}

.dot-ok { background: var(--ok); }
.dot-danger { background: var(--danger); }
.dot-accent { background: var(--accent); }

.row-actions {
  display: flex;
  gap: var(--s-2);
  white-space: nowrap;
  justify-content: flex-end;
}

.row-actions .btn {
  min-height: 28px;
  padding: 0 var(--s-2);
  font-size: 12px;
}

.session-table input[type="checkbox"] {
  accent-color: var(--accent);
}

.empty-state {
  color: var(--muted);
  opacity: 1;
  transition: opacity var(--dur-ui) var(--ease-out);
}

@starting-style {
  .empty-state {
    opacity: 0;
  }
}

.errors {
  color: var(--muted);
  margin: var(--s-4) 0 0;
  padding-left: 1.1rem;
}

.facts {
  display: grid;
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  margin-bottom: var(--s-5);
}

.facts div {
  display: grid;
  grid-template-columns: 12rem 1fr;
  gap: var(--s-3);
  padding: 0.7rem var(--s-4);
  border-bottom: 1px solid var(--line);
  min-height: var(--row);
  align-items: center;
}

.facts div:last-child { border-bottom: 0; }
.facts dt { color: var(--muted); font-size: 12px; margin: 0; }
.facts dd { margin: 0; }

.api-list {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

@media (max-width: 720px) {
  body.app {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
  }

  .rail {
    flex-direction: row;
    width: 100%;
    height: 48px;
    padding: 0 var(--s-2);
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .rail-brand { margin-bottom: 0; }
  .rail-gap { flex: 0; width: var(--s-2); }

  .toolbar {
    flex-wrap: wrap;
    padding: var(--s-2) var(--s-3);
    min-height: 0;
  }

  .workspace-body { padding: var(--s-3); }

  .facts div { grid-template-columns: 1fr; gap: var(--s-1); }

  .pair-row {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .auth-card,
  .flash,
  .empty-state,
  .btn,
  .rail-link,
  .rail-brand {
    transition: opacity 200ms ease;
    animation: none !important;
    transform: none !important;
  }

  @starting-style {
    .auth-card,
    .flash,
    .empty-state {
      transform: none;
      opacity: 0;
    }
  }
}