/* Science Classroom — GenAiMakers factory aesthetic */
:root {
  --sc-sky: #7dd3fc;
  --sc-sky-deep: #38bdf8;
  --sc-leaf: #86efac;
  --sc-ink: #0a0f14;
  --sc-panel: rgba(17, 25, 33, 0.92);
  --sc-line: rgba(125, 211, 252, 0.28);
  --sc-gold: #e8c48a;
  --sc-ok: #4ade80;
  --sc-warn: #fbbf24;
  --sc-err: #fb7185;
}

.sc-page {
  padding-bottom: 4rem;
  background:
    radial-gradient(ellipse 70% 40% at 10% -10%, rgba(56, 189, 248, 0.14), transparent 55%),
    radial-gradient(ellipse 50% 35% at 90% 0%, rgba(134, 239, 172, 0.1), transparent 50%),
    linear-gradient(180deg, #0a0f14 0%, #0d1520 40%, #0a0f14 100%);
  min-height: 100vh;
}

.sc-hero {
  padding: 5.5rem 0 1.5rem;
  position: relative;
  overflow: hidden;
}
.sc-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(125, 211, 252, 0.45), transparent);
}
.sc-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sc-sky);
}
.sc-eyebrow::before {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--sc-leaf);
  box-shadow: 0 0 10px rgba(134, 239, 172, 0.7);
}
.sc-hero h1 {
  font-family: "Instrument Serif", Georgia, serif;
  font-weight: 400;
  font-size: clamp(2rem, 4.5vw, 3.1rem);
  letter-spacing: -0.02em;
  line-height: 1.12;
  margin-top: 0.85rem;
  max-width: 18ch;
}
.sc-hero h1 em {
  font-style: italic;
  color: var(--sc-sky);
}
.sc-hero .lead {
  margin-top: 0.85rem;
  max-width: 38rem;
  color: var(--muted);
  font-size: 1.02rem;
}

.sc-shell {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.25rem;
}
@media (min-width: 980px) {
  .sc-shell { grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); align-items: start; }
}

.sc-panel {
  background: var(--sc-panel);
  border: 1px solid var(--border);
  border-radius: 1.05rem;
  padding: 1.25rem 1.3rem 1.4rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}
.sc-panel h2 {
  font-family: "Instrument Serif", Georgia, serif;
  font-weight: 400;
  font-size: 1.45rem;
  margin: 0 0 0.35rem;
}
.sc-panel .hint {
  color: var(--muted);
  font-size: 0.88rem;
  margin-bottom: 1rem;
}

.sc-form label {
  display: block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #c5d0dc;
  margin: 0.95rem 0 0.4rem;
}
.sc-form input[type="text"],
.sc-form input[type="email"],
.sc-form select {
  width: 100%;
  font: inherit;
  padding: 0.72rem 0.85rem;
  border-radius: 0.65rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(10, 15, 20, 0.72);
  color: var(--text);
}
.sc-form input:focus,
.sc-form select:focus {
  outline: 2px solid rgba(56, 189, 248, 0.55);
  outline-offset: 1px;
}
.sc-row {
  display: grid;
  gap: 0 0.9rem;
}
@media (min-width: 560px) {
  .sc-row.two { grid-template-columns: 1fr 1fr; }
}

.sc-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.35rem;
}
.sc-chip {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.42rem 0.75rem;
  border-radius: 9999px;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.sc-chip[aria-pressed="true"] {
  color: #042f2e;
  background: linear-gradient(180deg, #7dd3fc 0%, #38bdf8 100%);
  border-color: transparent;
}
.sc-chip:hover { color: #fff; border-color: rgba(125, 211, 252, 0.45); }

.sc-check {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  margin-top: 1.1rem;
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.45;
}
.sc-check input {
  margin-top: 0.2rem;
  accent-color: var(--sc-sky-deep);
  width: 1.05rem;
  height: 1.05rem;
  flex-shrink: 0;
}

.sc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.25rem;
  align-items: center;
}
.sc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font: inherit;
  font-weight: 600;
  font-size: 0.92rem;
  padding: 0.72rem 1.15rem;
  border-radius: 9999px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}
.sc-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.sc-btn-primary {
  background: linear-gradient(180deg, #7dd3fc 0%, #0ea5e9 100%);
  color: #082f49;
  box-shadow: 0 8px 24px rgba(14, 165, 233, 0.28);
}
.sc-btn-primary:hover:not(:disabled) {
  background: linear-gradient(180deg, #bae6fd 0%, #38bdf8 100%);
}
.sc-btn-ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.16);
  color: var(--text);
}
.sc-btn-ghost:hover:not(:disabled) {
  border-color: rgba(125, 211, 252, 0.45);
  color: #fff;
}

.sc-status {
  min-height: 1.25rem;
  margin-top: 0.85rem;
  font-size: 0.88rem;
  color: var(--muted);
}
.sc-status.is-err { color: var(--sc-err); font-weight: 600; }
.sc-status.is-ok { color: var(--sc-ok); }
.sc-status.is-busy { color: var(--sc-sky); }

.sc-aside-card {
  border: 1px solid var(--sc-line);
  border-radius: 0.95rem;
  padding: 1rem 1.05rem;
  background:
    linear-gradient(160deg, rgba(56, 189, 248, 0.08), transparent 40%),
    rgba(10, 15, 20, 0.55);
}
.sc-aside-card + .sc-aside-card { margin-top: 0.85rem; }
.sc-aside-card h3 {
  font-size: 0.95rem;
  margin-bottom: 0.35rem;
}
.sc-aside-card p { font-size: 0.84rem; color: var(--muted); }
.sc-aside-card ol {
  margin: 0.5rem 0 0;
  padding-left: 1.1rem;
  color: var(--muted);
  font-size: 0.84rem;
}
.sc-aside-card li { margin: 0.25rem 0; }

.sc-guard {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 1rem;
  line-height: 1.45;
}

/* Dashboard */
.sc-dash-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.25rem;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}
.sc-dash-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}
.sc-pill {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.35rem 0.65rem;
  border-radius: 9999px;
  border: 1px solid rgba(125, 211, 252, 0.28);
  color: var(--sc-sky);
  background: rgba(56, 189, 248, 0.08);
}
.sc-unit {
  margin-top: 1.35rem;
}
.sc-unit h3 {
  font-family: "Instrument Serif", Georgia, serif;
  font-weight: 400;
  font-size: 1.35rem;
  margin-bottom: 0.25rem;
}
.sc-unit .sc-unit-sub {
  color: var(--muted);
  font-size: 0.84rem;
  margin-bottom: 0.85rem;
}
.sc-topics {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .sc-topics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1100px) {
  .sc-topics { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.sc-topic {
  text-align: left;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(10, 15, 20, 0.55);
  border-radius: 0.95rem;
  padding: 0;
  overflow: hidden;
  cursor: pointer;
  color: inherit;
  font: inherit;
  transition: border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}
.sc-topic:hover,
.sc-topic:focus-visible {
  border-color: rgba(125, 211, 252, 0.55);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.28);
  outline: none;
}
.sc-topic-poster {
  position: relative;
  height: 7.5rem;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.sc-topic-poster[data-style="paper-cutout"] {
  background:
    radial-gradient(circle at 20% 80%, rgba(251, 146, 60, 0.25), transparent 40%),
    linear-gradient(145deg, #1a2430, #0f1720);
}
.sc-topic-poster[data-style="felt-collage"] {
  background:
    radial-gradient(circle at 70% 30%, rgba(134, 239, 172, 0.22), transparent 42%),
    linear-gradient(150deg, #14201c, #0f1418);
}
.sc-topic-poster[data-style="ink-and-wash"] {
  background:
    radial-gradient(circle at 40% 20%, rgba(125, 211, 252, 0.28), transparent 45%),
    linear-gradient(160deg, #121a28, #0c121a);
}
.sc-topic-poster .sc-dur {
  position: absolute;
  right: 0.55rem;
  bottom: 0.55rem;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.45rem;
  border-radius: 0.4rem;
  background: rgba(10, 15, 20, 0.72);
  color: #e2e8f0;
}
.sc-topic-poster .sc-prog {
  position: absolute;
  left: 0.55rem;
  top: 0.55rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.22rem 0.5rem;
  border-radius: 9999px;
  background: rgba(10, 15, 20, 0.7);
  color: var(--muted);
}
.sc-topic-poster .sc-prog.is-watched { color: var(--sc-sky); }
.sc-topic-poster .sc-prog.is-done { color: var(--sc-ok); }
.sc-topic-body { padding: 0.85rem 0.95rem 1rem; }
.sc-topic-body strong { display: block; font-size: 1rem; margin-bottom: 0.25rem; }
.sc-topic-body p { font-size: 0.84rem; color: var(--muted); margin: 0; }

/* Lesson player */
.sc-lesson-layout {
  display: grid;
  gap: 1rem;
}
@media (min-width: 900px) {
  .sc-lesson-layout { grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.9fr); }
}
.sc-player {
  border-radius: 1rem;
  border: 1px solid var(--sc-line);
  overflow: hidden;
  background: #070b10;
}
.sc-stage {
  position: relative;
  aspect-ratio: 16 / 10;
  display: grid;
  place-items: stretch;
  overflow: hidden;
}
.sc-stage[data-style="paper-cutout"] {
  background: linear-gradient(160deg, #1c2734, #101820 60%, #1a1510);
}
.sc-stage[data-style="felt-collage"] {
  background: linear-gradient(160deg, #15241e, #101816);
}
.sc-stage[data-style="ink-and-wash"] {
  background: linear-gradient(160deg, #152030, #0d141e);
}
.sc-scene-art {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: stretch;
  position: relative;
  opacity: 1;
  transition: opacity 0.35s ease, transform 0.45s ease;
}
.sc-scene-art.is-enter {
  animation: scSceneIn 0.55s ease;
}
@keyframes scSceneIn {
  from { opacity: 0; transform: translateY(10px) scale(0.985); }
  to { opacity: 1; transform: none; }
}
.sc-scene-frame {
  position: relative;
  width: 100%;
  height: 100%;
  display: grid;
}
.sc-svg {
  width: 100%;
  height: 100%;
  display: block;
}
.sc-scene-label {
  position: absolute;
  left: 0.85rem;
  right: 0.85rem;
  bottom: 0.75rem;
  padding: 0.55rem 0.75rem;
  border-radius: 0.75rem;
  background: rgba(7, 11, 16, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(6px);
  text-align: left;
  pointer-events: none;
}
.sc-scene-label strong {
  display: block;
  font-family: "Instrument Serif", Georgia, serif;
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  font-weight: 400;
  color: #f1f5f9;
}
.sc-scene-label span {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.8rem;
  color: #c5d0dc;
}
.sc-bob { animation: scBob 2.8s ease-in-out infinite; }
.sc-float { animation: scFloat 4.2s ease-in-out infinite; }
.sc-sway { animation: scSway 3.4s ease-in-out infinite; transform-origin: center; }
.sc-spin-slow { animation: scSpin 18s linear infinite; transform-origin: center; }
.sc-pulse-ring { animation: scPulse 2.2s ease-in-out infinite; transform-origin: center; }
.sc-grow { animation: scGrow 2.8s ease-in-out infinite alternate; transform-origin: bottom center; }
.sc-rise { animation: scRise 3s ease-in-out infinite; }
.sc-roll { animation: scRoll 3.5s ease-in-out infinite alternate; }
.sc-flicker { animation: scFlicker 1.1s ease-in-out infinite; }
.sc-draw { stroke-dasharray: 220; stroke-dashoffset: 220; animation: scDraw 2.4s ease forwards; }
.sc-wave { animation: scWave 4s ease-in-out infinite; }
.sc-wave2 { animation: scWave 5s ease-in-out infinite reverse; }
.sc-attract { animation: scAttract 2.2s ease-in-out infinite alternate; }
@keyframes scFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@keyframes scBob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
@keyframes scSway {
  0%, 100% { transform: rotate(-4deg); }
  50% { transform: rotate(5deg); }
}
@keyframes scSpin { to { transform: rotate(360deg); } }
@keyframes scPulse {
  0%, 100% { opacity: 0.55; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.08); }
}
@keyframes scGrow {
  from { transform: scaleY(0.92); }
  to { transform: scaleY(1.05); }
}
@keyframes scRise {
  0%, 100% { transform: translateY(0); opacity: 0.35; }
  50% { transform: translateY(-18px); opacity: 0.8; }
}
@keyframes scRoll {
  from { transform: translateX(0); }
  to { transform: translateX(36px); }
}
@keyframes scFlicker {
  0%, 100% { opacity: 0.75; }
  50% { opacity: 1; }
}
@keyframes scDraw {
  to { stroke-dashoffset: 0; }
}
@keyframes scWave {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(-18px); }
}
@keyframes scAttract {
  from { transform: translateX(8px); }
  to { transform: translateX(-12px); }
}

.sc-interact {
  position: absolute;
  inset: auto 0.75rem 0.75rem;
  z-index: 3;
  padding: 0.85rem 1rem;
  border-radius: 0.9rem;
  background: rgba(7, 11, 16, 0.9);
  border: 1px solid rgba(125, 211, 252, 0.35);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}
.sc-ix-prompt {
  margin: 0 0 0.65rem;
  font-family: "Instrument Serif", Georgia, serif;
  font-size: 1.05rem;
}
.sc-ix-choices {
  display: grid;
  gap: 0.45rem;
}
.sc-ix-choice {
  text-align: left;
  font: inherit;
  color: inherit;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(15, 23, 32, 0.85);
  border-radius: 0.7rem;
  padding: 0.7rem 0.85rem;
}
.sc-ix-choice:hover { border-color: rgba(125, 211, 252, 0.5); }
.sc-ix-choice.is-correct {
  border-color: rgba(74, 222, 128, 0.55);
  background: rgba(74, 222, 128, 0.12);
}
.sc-ix-choice.is-wrong {
  border-color: rgba(251, 113, 133, 0.45);
  background: rgba(251, 113, 133, 0.1);
}
.sc-ix-status {
  margin: 0.55rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}
.sc-scene-dots {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0.55rem 1rem 0;
}
.sc-dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 9999px;
  border: 0;
  padding: 0;
  background: rgba(255, 255, 255, 0.2);
  cursor: pointer;
}
.sc-dot.is-on { background: var(--sc-sky); transform: scale(1.25); }
.sc-dot.is-done { background: rgba(134, 239, 172, 0.7); }
.sc-caption {
  padding: 0.85rem 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.95rem;
  min-height: 3.4rem;
}
.sc-player-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
  padding: 0.75rem 1rem 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.sc-progress-track {
  flex: 1;
  min-width: 8rem;
  height: 0.4rem;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.1);
  overflow: hidden;
}
.sc-progress-track > i {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--sc-sky), var(--sc-leaf));
  transition: width 0.25s linear;
}

.sc-explain {
  display: grid;
  gap: 0.75rem;
}
.sc-block {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.85rem;
  padding: 0.85rem 1rem;
  background: rgba(10, 15, 20, 0.45);
  font-size: 0.95rem;
}
.sc-block.is-try {
  border-color: rgba(134, 239, 172, 0.35);
  background: rgba(134, 239, 172, 0.08);
}
.sc-block.is-image {
  min-height: 5rem;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 0.88rem;
  background:
    repeating-linear-gradient(-45deg, transparent, transparent 8px, rgba(125, 211, 252, 0.05) 9px),
    rgba(10, 15, 20, 0.45);
}

.sc-check-q {
  margin-top: 0.5rem;
}
.sc-check-q h3 {
  font-family: "Instrument Serif", Georgia, serif;
  font-weight: 400;
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}
.sc-choices {
  display: grid;
  gap: 0.55rem;
}
.sc-choice {
  text-align: left;
  font: inherit;
  color: inherit;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(10, 15, 20, 0.5);
  border-radius: 0.8rem;
  padding: 0.85rem 1rem;
}
.sc-choice:hover { border-color: rgba(125, 211, 252, 0.45); }
.sc-choice.is-correct {
  border-color: rgba(74, 222, 128, 0.55);
  background: rgba(74, 222, 128, 0.12);
}
.sc-choice.is-wrong {
  border-color: rgba(251, 113, 133, 0.45);
  background: rgba(251, 113, 133, 0.1);
}

.sc-empty {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--muted);
}
.sc-empty strong {
  display: block;
  color: var(--text);
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

.sc-hidden { display: none !important; }

@media (prefers-reduced-motion: reduce) {
  .sc-scene-art,
  .sc-bob,
  .sc-float,
  .sc-sway,
  .sc-spin-slow,
  .sc-pulse-ring,
  .sc-grow,
  .sc-rise,
  .sc-roll,
  .sc-flicker,
  .sc-draw,
  .sc-wave,
  .sc-wave2,
  .sc-attract { animation: none !important; }
  .sc-topic { transition: none; }
}