:root {
  color-scheme: light;
  --bg: #f7f8f4;
  --surface: #ffffff;
  --surface-2: #eef3ec;
  --ink: #16201d;
  --muted: #60706a;
  --line: #d7ded7;
  --brand: #0f766e;
  --brand-strong: #0b5d56;
  --accent: #b45309;
  --danger: #b42318;
  --success: #157f3b;
  --focus: #0ea5a3;
  --shadow: 0 16px 40px rgba(22, 32, 29, 0.08);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}

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

button {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  min-height: 38px;
  padding: 0.55rem 0.8rem;
}

button:hover,
button:focus-visible,
select:focus-visible,
input:focus-visible,
textarea:focus-visible {
  border-color: var(--focus);
  outline: 3px solid rgba(14, 165, 163, 0.18);
}

button.primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}

button.ghost {
  background: transparent;
}

.app-shell {
  min-height: 100vh;
}

.topbar {
  align-items: center;
  background: rgba(247, 248, 244, 0.94);
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  padding: 0.75rem clamp(1rem, 3vw, 2rem);
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand {
  align-items: center;
  display: flex;
  gap: 0.75rem;
  min-width: 14rem;
}

.brand-mark {
  align-items: end;
  background: var(--ink);
  border-radius: 8px;
  display: grid;
  grid-template-columns: repeat(3, 5px);
  gap: 3px;
  height: 36px;
  justify-content: center;
  padding: 7px;
  width: 36px;
}

.brand-mark span {
  background: #f5c542;
  border-radius: 3px;
  display: block;
  width: 5px;
}

.brand-mark span:nth-child(1) {
  height: 12px;
}

.brand-mark span:nth-child(2) {
  height: 20px;
}

.brand-mark span:nth-child(3) {
  height: 15px;
}

.brand-title {
  font-weight: 750;
  letter-spacing: 0;
}

.brand-subtitle,
.muted {
  color: var(--muted);
}

.brand-subtitle {
  font-size: 0.82rem;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  justify-content: center;
}

.nav button[aria-current="page"] {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.controls {
  display: flex;
  gap: 0.5rem;
}

.hero {
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  padding: clamp(1.25rem, 4vw, 3rem);
}

.hero h1 {
  font-size: clamp(2.1rem, 5vw, 4.2rem);
  letter-spacing: 0;
  line-height: 1.02;
  margin: 0 0 1rem;
}

.hero-copy {
  max-width: 760px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.market-panel,
.panel,
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.market-panel {
  box-shadow: var(--shadow);
  min-height: 340px;
  padding: 1rem;
}

.market-grid {
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 0.65rem;
  grid-template-columns: repeat(3, 1fr);
  padding-bottom: 1rem;
}

.metric {
  background: var(--surface-2);
  border-radius: 8px;
  padding: 0.75rem;
}

.metric strong {
  display: block;
  font-size: 1.2rem;
  margin-top: 0.2rem;
}

.candles {
  align-items: end;
  display: grid;
  gap: 0.55rem;
  grid-template-columns: repeat(12, 1fr);
  height: 170px;
  margin-top: 1.5rem;
}

.candle {
  align-items: center;
  display: flex;
  height: var(--wick);
  justify-content: center;
  position: relative;
}

.candle::before {
  background: var(--muted);
  content: "";
  height: 100%;
  position: absolute;
  width: 2px;
}

.candle::after {
  background: var(--color);
  border-radius: 3px;
  content: "";
  height: var(--body);
  position: relative;
  width: min(22px, 70%);
}

.content {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 280px minmax(0, 1fr);
  padding: 0 clamp(1rem, 3vw, 2rem) 2rem;
}

.sidebar {
  align-self: start;
  display: grid;
  gap: 1rem;
  position: sticky;
  top: 86px;
}

.panel {
  padding: 1rem;
}

.progress-ring {
  aspect-ratio: 1;
  background:
    radial-gradient(circle at center, var(--surface) 58%, transparent 59%),
    conic-gradient(var(--brand) var(--pct), var(--surface-2) 0);
  border-radius: 50%;
  display: grid;
  margin: 0.75rem auto;
  max-width: 140px;
  place-items: center;
  width: 70%;
}

.main {
  display: grid;
  gap: 1rem;
}

.toolbar {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: space-between;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.grid {
  display: grid;
  gap: 1rem;
}

.module-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card {
  display: grid;
  gap: 0.75rem;
  padding: 1rem;
}

.card h2,
.card h3,
.panel h2,
.panel h3 {
  margin: 0;
}

.lesson-list {
  display: grid;
  gap: 0.5rem;
}

.lesson-row {
  align-items: center;
  display: grid;
  gap: 0.75rem;
  grid-template-columns: auto 1fr auto;
  text-align: left;
  width: 100%;
}

.status-dot {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 50%;
  height: 14px;
  width: 14px;
}

.status-dot.done {
  background: var(--success);
  border-color: var(--success);
}

.lesson {
  display: grid;
  gap: 1rem;
}

.lesson-header {
  display: grid;
  gap: 0.4rem;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.pill {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.82rem;
  padding: 0.25rem 0.55rem;
}

.formula {
  background: #13221f;
  border-radius: 8px;
  color: #f4f7f5;
  overflow-x: auto;
  padding: 1rem;
}

.quiz-options {
  display: grid;
  gap: 0.55rem;
}

.quiz-options button {
  text-align: left;
}

.quiz-options button.correct {
  border-color: var(--success);
}

.quiz-options button.incorrect {
  border-color: var(--danger);
}

.glossary-list {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.admin-layout {
  display: grid;
  gap: 1rem;
}

.workflow-list {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1rem;
}

.workflow-list ol {
  display: grid;
  gap: 0.5rem;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  list-style-position: inside;
  margin: 0.75rem 0;
  padding: 0;
}

.workflow-list li {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.65rem;
}

textarea {
  border: 1px solid var(--line);
  border-radius: 8px;
  min-height: 220px;
  padding: 0.75rem;
  resize: vertical;
  width: 100%;
}

.certificate {
  background: #fffdf5;
  border: 1px solid #e3d19b;
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
  padding: 1.25rem;
}

.certificate h2 {
  font-size: clamp(1.8rem, 4vw, 3rem);
}

.notice {
  background: #fff8e6;
  border: 1px solid #efd393;
  border-radius: 8px;
  color: #5b3b04;
  padding: 0.85rem;
}

.error {
  background: #fff1f0;
  border-color: #ffccc7;
  color: var(--danger);
}

@media (max-width: 880px) {
  .topbar,
  .hero,
  .content {
    grid-template-columns: 1fr;
  }

  .topbar {
    align-items: stretch;
    display: grid;
  }

  .nav,
  .controls {
    justify-content: start;
  }

  .sidebar {
    position: static;
  }
}

@media print {
  body {
    background: #fff;
  }

  .topbar,
  .hero,
  .sidebar,
  .toolbar,
  .notice,
  .admin-layout button {
    display: none !important;
  }

  .content {
    display: block;
  }

  .certificate {
    border: 2px solid #333;
  }
}