/* ClassLingo — Schoolbook Retro brand
   Cream paper, thick ink borders, hard offset shadows, primary palette.
   Shared across /, /teach, /student, /dispatch, and /admin.html. */
:root {
  --cream: #f3e9d2;
  --paper: #fdf6e3;
  --ink: #2a1a0f;
  --ink-2: #6b4f3a;
  --rule: rgba(42, 26, 15, 0.18);

  /* Primary palette */
  --red: #c2362e;
  --mustard: #e0a82e;
  --teal: #2b7a78;
  --orange: #e2733a;

  /* Aliases used across the existing markup so HTML class hooks keep working. */
  --bg: var(--cream);
  --surface: var(--paper);
  --surface2: #efe2bf;
  --border: var(--rule);
  --border-strong: var(--ink);
  --accent: var(--red);
  --accent-dim: rgba(194, 54, 46, 0.10);
  --magenta: var(--mustard);
  --magenta-dim: rgba(224, 168, 46, 0.14);
  --red-dim: rgba(194, 54, 46, 0.10);
  --green: var(--teal);
  --text: var(--ink);
  --muted: var(--ink-2);
  --radius: 8px;

  --shadow-sm: 3px 3px 0 var(--ink);
  --shadow-md: 4px 4px 0 var(--ink);
  --shadow-lg: 6px 6px 0 var(--ink);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  min-height: 100%;
  background: var(--cream);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--mustard); color: var(--ink); }

/* Subtle paper grain instead of the old neon glow */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background-image:
    radial-gradient(rgba(42,26,15,0.05) 1px, transparent 1px),
    radial-gradient(rgba(42,26,15,0.03) 1px, transparent 1px);
  background-size: 24px 24px, 8px 8px;
  background-position: 0 0, 4px 4px;
  opacity: 0.6;
}
body::after { content: none; }

.app {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding: 22px 18px 36px;
  max-width: 640px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--ink);
}
.logo {
  font-family: 'Atkinson Hyperlegible', 'Syne', sans-serif;
  font-weight: 700;
  font-size: 30px;
  color: var(--ink);
  letter-spacing: 0.01em;
  font-size: 0;
}
.logo::before { content: "Class"; color: var(--ink); font-size: 30px; font-family: 'Atkinson Hyperlegible', sans-serif; }
.logo::after  { content: "Lingo"; color: var(--red); font-size: 30px; font-family: 'Atkinson Hyperlegible', sans-serif; }

.logo-sub {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--ink-2);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
}
.section-label {
  font-family: 'Atkinson Hyperlegible', sans-serif;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 8px;
  font-weight: 400;
}

select, .btn, input[type="text"], input[type="password"], input[type="file"] {
  background: var(--paper);
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  color: var(--ink);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 14px;
  font-weight: 500;
  padding: 11px 14px;
  cursor: pointer;
  width: 100%;
  text-align: left;
  transition: transform 0.1s ease, box-shadow 0.1s ease, filter 0.15s ease;
  box-shadow: var(--shadow-sm);
}
.btn:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--ink); }
.btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--ink); }
select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%232a1a0f' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 12px 8px;
  padding-right: 36px;
}
select:focus, .btn:focus, input:focus {
  outline: none;
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--red);
}
.btn-primary {
  background: var(--red);
  color: var(--paper);
  border-color: var(--ink);
  font-family: 'Atkinson Hyperlegible', sans-serif;
  font-weight: 700;
  text-align: center;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 14px;
}
.btn-primary:hover { filter: brightness(1.06); }
.btn-ghost { text-align: center; background: var(--mustard); color: var(--ink); }
.btn-ghost:hover { background: #f0bd47; }

.row { display: flex; gap: 12px; }
.row > * { flex: 1; }

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-2);
  padding: 6px 12px;
  border-radius: var(--radius);
  border: 2px solid var(--ink);
  background: var(--paper);
  font-weight: 500;
}
.status-pill .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--ink-2);
}
.status-pill.live .dot { background: var(--red); animation: pulse 1.4s infinite; }
.status-pill.ok .dot { background: var(--teal); }
.status-pill.live { color: var(--red); }
.status-pill.ok { color: var(--teal); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.panel {
  background: var(--paper);
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 14px;
  min-height: 100px;
  box-shadow: var(--shadow-sm);
}
.panel-text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-2);
  font-style: italic;
}
.panel-text.filled { color: var(--ink); font-style: normal; }

.feed {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}
.utter {
  background: var(--paper);
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  padding: 14px 16px;
  box-shadow: var(--shadow-sm);
}
.utter .en {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--ink-2);
  margin-bottom: 6px;
  line-height: 1.5;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.utter .tr {
  font-family: 'Atkinson Hyperlegible', 'Inter', serif;
  font-weight: 400;
  font-size: 20px;
  line-height: 1.4;
  color: var(--ink);
}
.utter.latest {
  padding: 22px 20px;
  background: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: 6px 6px 0 var(--red);
}
.utter.latest .tr { font-size: 28px; line-height: 1.35; }
.utter.latest .en { font-size: 12px; margin-bottom: 10px; }
.utter:not(.latest) { padding: 10px 14px; box-shadow: 2px 2px 0 var(--ink); }
.utter:not(.latest) .tr { font-family: 'Inter', sans-serif; font-weight: 500; font-size: 15px; line-height: 1.5; color: var(--ink-2); }
.utter:not(.latest) .en { font-size: 10px; margin-bottom: 4px; }
body[data-fs="sm"] .utter.latest .tr { font-size: 22px; }
body[data-fs="sm"] .utter:not(.latest) .tr { font-size: 13px; }
body[data-fs="lg"] .utter.latest .tr { font-size: 36px; }
body[data-fs="lg"] .utter:not(.latest) .tr { font-size: 18px; }
body[data-fs="xl"] .utter.latest .tr { font-size: 44px; line-height: 1.3; }
body[data-fs="xl"] .utter:not(.latest) .tr { font-size: 21px; }
.utter.err .tr { color: var(--red); font-family: 'Inter', sans-serif; font-weight: 600; font-size: 14px; }
.utter.err { border-color: var(--red); background: #fbe8e6; box-shadow: 3px 3px 0 var(--red); }
.utter.queued { opacity: 0.55; border-style: dashed; }

.student-controls {
  display: flex; gap: 8px; flex-wrap: wrap; align-items: center;
  margin: 12px 0 16px;
}
.student-controls .btn {
  width: auto; padding: 8px 12px; font-size: 12px;
  text-transform: uppercase; letter-spacing: 0.08em;
  font-family: 'Atkinson Hyperlegible', sans-serif; font-weight: 700;
}
.student-controls .btn.active {
  background: var(--red); color: var(--paper); border-color: var(--ink);
}
.student-controls .btn.danger.active {
  background: var(--ink); color: var(--paper);
}
.fs-group { display: inline-flex; gap: 6px; }
.fs-group .btn { padding: 8px 10px; }
.hold-badge {
  display: inline-block; background: var(--mustard); color: var(--ink);
  font-family: 'Atkinson Hyperlegible', sans-serif;
  font-size: 11px; padding: 2px 8px; border-radius: 6px;
  margin-left: 6px; font-weight: 400;
  border: 1.5px solid var(--ink);
}

.no-support {
  background: #fbe8e6;
  border: 2px solid var(--red);
  border-radius: var(--radius);
  padding: 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--red);
  margin-bottom: 16px;
  line-height: 1.6;
  box-shadow: 3px 3px 0 var(--red);
}
.hint {
  font-size: 12px;
  color: var(--ink-2);
  line-height: 1.6;
  margin-top: 12px;
  font-family: 'DM Mono', monospace;
}
.hint code {
  color: var(--red);
  background: #fbe8e6;
  padding: 1px 6px;
  border-radius: 4px;
  border: 1px solid var(--rule);
}
.toolbar {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 0;
}
.spacer { flex: 1; }

#controls-card { display: none; }
#controls-card:has(#controls[style*="display: flex"]) { display: block; }

/* Sticky bottom action bar */
.bottom-bar {
  position: sticky;
  bottom: 0;
  left: 0; right: 0;
  z-index: 30;
  margin: 16px -24px -40px;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  background: var(--paper);
  border-top: 3px solid var(--ink);
  box-shadow: 0 -6px 0 rgba(42,26,15,0.08);
}
.bottom-bar .student-controls {
  margin: 0;
  justify-content: center;
}
.bottom-bar .btn {
  min-height: 44px;
}

/* Compact identity bar */
.card--identity { padding: 14px 18px; }
.card--identity .card-title { margin-bottom: 6px; font-size: 12px; }
.card--identity select { padding: 9px 12px; font-size: 14px; }
.card--identity input[type="text"] { padding: 9px 12px; font-size: 14px; }
.identity-row {
  display: grid; gap: 12px;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .identity-row { grid-template-columns: minmax(220px, 1fr) minmax(220px, 1fr); }
}

.card--lesson .feed { min-height: 48vh; }
@media (min-width: 900px) {
  .card--lesson .feed { min-height: 56vh; }
}

.grid-aux {
  display: grid; gap: 16px;
  grid-template-columns: 1fr;
}
.grid-aux > .card { margin-bottom: 0; }
@media (min-width: 900px) {
  .grid-aux { grid-template-columns: 1fr 1fr; }
}

/* ---------- Section cards ----------
   Schoolbook treatment: paper bg, thick ink border, hard colored offset
   shadow per section. Keeps the old card--cyan/magenta/etc. hooks. */
.card {
  --c: var(--red);
  position: relative;
  background: var(--paper);
  border: 3px solid var(--ink);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 18px;
  box-shadow: 5px 5px 0 var(--c);
}
.card--cyan    { --c: var(--red); }
.card--magenta { --c: var(--mustard); }
.card--lime    { --c: var(--teal); }
.card--orange  { --c: var(--orange); }
.card--violet  { --c: var(--ink); }
.card--green   { --c: var(--teal); }

.card-title {
  font-family: 'Atkinson Hyperlegible', sans-serif;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.card-title .ico {
  display: inline-grid;
  place-items: center;
  width: 36px; height: 36px;
  border-radius: 8px;
  border: 2px solid var(--ink);
  background: var(--c);
  color: var(--paper);
  font-size: 18px;
  box-shadow: 2px 2px 0 var(--ink);
}
.card-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-bottom: 14px; flex-wrap: wrap;
}
.card-head .card-title { margin-bottom: 0; }

.card .btn-primary {
  background: var(--c);
  color: var(--paper);
  border-color: var(--ink);
}
.card--magenta .btn-primary { color: var(--ink); }
.card--orange .btn-primary { color: var(--ink); }
.card .section-label { color: var(--c); }
.card .status-pill.live { color: var(--c); }
.card .status-pill.live .dot { background: var(--c); }
.card .utter.latest {
  border-color: var(--ink);
  box-shadow: 6px 6px 0 var(--c);
}

.input-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.input-row > input[type="text"],
.input-row > input[type="password"],
.input-row > input[type="file"] {
  flex: 1; min-width: 200px; width: auto;
}
.input-row .btn { width: auto; padding: 11px 16px; font-size: 13px; }

.grid-2 {
  display: grid; grid-template-columns: 1fr; gap: 16px;
}
.grid-media {
  display: grid; grid-template-columns: 1fr; gap: 16px;
  align-items: start;
}
.grid-media > .card { margin-bottom: 0; }
@media (min-width: 900px) {
  .app { max-width: 1280px; padding: 28px 24px 40px; }
  .grid-2 { grid-template-columns: 1fr 1fr; }
  .grid-2 > .card { margin-bottom: 0; }
  .grid-media { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
}

/* Student watermark */
.student-body {
  position: relative;
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}
.student-body input,
.student-body textarea,
.student-body select {
  -webkit-user-select: text;
  -moz-user-select: text;
  user-select: text;
}
.watermark {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  gap: 60px 80px;
  padding: 40px;
  transform: rotate(-22deg) scale(1.4);
  transform-origin: center center;
  opacity: 0.05;
}
.watermark span {
  font-family: 'DM Mono', monospace;
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--ink);
  white-space: nowrap;
  user-select: none;
}
.student-body .app { position: relative; z-index: 1; }