@import url("https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;800;900&display=swap");

/* SSE Prototype v0.1 — shared shell styles.
   Built to read from across a room on a TV and still fit a phone. */

/* SSE brand: Clean White, Charcoal Black, Primary Gold (sampled from the logo), Accent Grey. */
:root {
  --bg: #ffffff;
  --panel: #f6f6f4;
  --panel-2: #ffffff;
  --line: #dcdcd8;
  --text: #000000;
  --muted: #424242;
  --accent: #efad3c;      /* SSE gold */
  --accent-ink: #000000;
  --good: #1f8a4c;
  --bad: #c62828;
  --lesson: #000000;
  --mission: #efad3c;
  --challenge: #efad3c;
  --live: #000000;
  --radius: 18px;
  color-scheme: light;
}

* { box-sizing: border-box; }

html { font-size: clamp(16px, 1.1vw + 10px, 26px); }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "Montserrat", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  line-height: 1.45;
  display: flex;
  flex-direction: column;
}

a { color: inherit; }

/* ---------- Shell ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem clamp(1rem, 4vw, 3rem);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 4px solid var(--accent);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.brand-logo { height: 3rem; width: auto; display: block; }
.hero-logo { height: clamp(4.5rem, 8vw, 6.5rem); width: auto; display: block; }
.home-head { display: flex; align-items: center; gap: clamp(1rem, 3vw, 2rem); flex-wrap: wrap; margin-bottom: 1rem; }
.home-head .sub { margin: 0; }

.home-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 2.8rem;
  padding: 0.5rem 1.2rem;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}
.home-btn:hover, .home-btn:focus-visible { filter: brightness(1.1); }

main {
  flex: 1;
  width: 100%;
  max-width: 1760px;
  margin: 0 auto;
  padding: clamp(1rem, 2vw, 1.8rem) clamp(1rem, 4vw, 3rem);
}

footer {
  padding: 1rem clamp(1rem, 4vw, 3rem);
  color: var(--muted);
  font-size: 0.8rem;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* ---------- Type ---------- */
h1 { font-size: clamp(2rem, 4vw, 3.4rem); line-height: 1.1; margin: 0 0 0.3rem; font-weight: 900; }
h2 { font-size: clamp(1.4rem, 2.4vw, 2rem); margin: 0 0 0.6rem; }
h3 { font-size: 1.15rem; margin: 0 0 0.4rem; }
.sub { color: var(--muted); font-size: 1.2rem; margin: 0 0 1.5rem; }
.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

/* ---------- Panels ---------- */
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1rem, 2.4vw, 1.8rem);
  margin-bottom: 1.2rem;
}

.status-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  border-left: 8px solid var(--accent);
}
.status-card { padding-block: 1rem; }
.status-card .big { font-size: clamp(1.4rem, 2.4vw, 2rem); font-weight: 800; }
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.9rem;
  border-radius: 999px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  font-size: 0.85rem;
  font-weight: 700;
}
.dot { width: 0.6rem; height: 0.6rem; border-radius: 50%; background: var(--good); }

/* ---------- Home cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: 1.2rem;
}

.card {
  --c: var(--accent);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 10rem;
  padding: 1.2rem 1.4rem;
  border-radius: var(--radius);
  background: var(--panel);
  border: 2px solid var(--line);
  border-top: 10px solid var(--c);
  text-decoration: none;
  transition: transform 0.12s ease, border-color 0.12s ease;
}
.card:hover, .card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--c);
  outline: none;
}
.card .icon { display: inline-grid; place-items: center; width: 3.6rem; height: 3.6rem; border-radius: 14px; background: #000; color: var(--accent); font-size: 1.8rem; line-height: 1; }
.card .title { font-size: clamp(1.4rem, 1.9vw, 2rem); line-height: 1.15; font-weight: 800; margin-top: 0.8rem; }
.card .desc { color: var(--muted); font-size: 0.85rem; margin-top: 0.3rem; }
.card.lesson { --c: var(--lesson); }
.card.mission { --c: var(--mission); }
.card.challenge { --c: var(--challenge); }
.card.live { --c: var(--live); }

/* ---------- Page hero ---------- */
.hero { border-top: 10px solid var(--c, var(--accent)); }
.hero.lesson { --c: var(--lesson); }
.hero.mission { --c: var(--mission); }
.hero.challenge { --c: var(--challenge); }
.hero.live { --c: var(--live); }

ul.objectives { margin: 0; padding-left: 1.3rem; }
ul.objectives li { margin: 0.3rem 0; }

/* ---------- Video ---------- */
.video-wrap {
  position: relative;
  aspect-ratio: 16 / 9;
  max-width: 100%;
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
  border: 1px solid var(--line);
}
.video-wrap video, .video-wrap iframe { width: 100%; height: 100%; border: 0; display: block; }
.video-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 1rem;
  color: #d0d0d0;
  background: repeating-linear-gradient(45deg, #1a1a1a, #1a1a1a 20px, #242424 20px, #242424 40px);
}
.video-placeholder strong { color: #fff; font-size: 1.3rem; display: block; margin-bottom: 0.4rem; }

/* ---------- Grid helpers ---------- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr));
  gap: 1.2rem;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: 1rem;
}

/* ---------- Mission ---------- */
.clue {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.2rem;
}
.clue .tag { display: inline-block; background: var(--accent); color: #000; padding: 0.15rem 0.6rem; border-radius: 6px; font-weight: 800; font-size: 0.8rem; letter-spacing: 0.1em; text-transform: uppercase; }

.timer {
  font-variant-numeric: tabular-nums;
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1;
  color: var(--text);
  border-bottom: 6px solid var(--accent);
  padding-bottom: 0.2rem;
  display: inline-block;
}

textarea {
  width: 100%;
  min-height: 9rem;
  padding: 1rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--text);
  font: inherit;
  resize: vertical;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 3rem;
  padding: 0.7rem 1.5rem;
  border-radius: 12px;
  border: 2px solid transparent;
  background: var(--accent);
  color: var(--accent-ink);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover, .btn:focus-visible { filter: brightness(1.1); }
.btn.ghost { background: transparent; color: var(--text); border-color: var(--text); }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 1rem; }

/* ---------- Challenge ---------- */
.answers { display: grid; gap: 0.9rem; margin-top: 1rem; }
.answer {
  width: 100%;
  text-align: left;
  min-height: 3.6rem;
  padding: 1rem 1.2rem;
  border-radius: 14px;
  border: 2px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  font: inherit;
  font-size: 1.05rem;
  cursor: pointer;
}
.answer:hover, .answer:focus-visible { border-color: var(--text); outline: none; }
.answer .letter { display: inline-grid; place-items: center; width: 2rem; height: 2rem; border-radius: 50%; background: var(--accent); color: #000; font-weight: 900; margin-right: 0.8rem; }
.answer.correct { border-color: var(--good); background: rgba(60, 207, 122, 0.14); }
.answer.wrong { border-color: var(--bad); background: rgba(255, 107, 107, 0.12); }

.feedback {
  margin-top: 1rem;
  padding: 1rem 1.2rem;
  border-radius: 14px;
  font-weight: 700;
  font-size: 1.1rem;
}
.feedback.good { background: rgba(60, 207, 122, 0.16); border: 1px solid var(--good); }
.feedback.bad { background: rgba(255, 107, 107, 0.14); border: 1px solid var(--bad); }

/* ---------- Live ---------- */
.event-meta { display: grid; gap: 0.8rem; margin: 1rem 0; }
.event-meta div { display: flex; gap: 0.8rem; flex-wrap: wrap; }
.event-meta dt { color: var(--muted); min-width: 7rem; font-weight: 700; }
.event-meta dd { margin: 0; font-weight: 700; }

.note { color: var(--muted); font-size: 0.9rem; }

[hidden] { display: none !important; }

@media (max-width: 520px) {
  .brand-logo { height: 2.4rem; }
  .card { min-height: 9rem; }
}