:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #5f6877;
  --board: #143f42;
  --board-2: #1e5a5b;
  --cream: #fff8ea;
  --paper: #fbfcff;
  --gold: #b98212;
  --gold-2: #d9951f;
  --line: #d9e0ea;
  --blue: #173b64;
  --leaf: #2d8063;
  --coral: #d85a4a;
  --shadow: 0 18px 46px rgba(24, 42, 58, .14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(180deg, var(--board) 0%, var(--board-2) 34%, #f6f8f4 34%, #fbfcff 100%);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

a {
  color: inherit;
}

button, textarea, select {
  font: inherit;
}

button {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  font-weight: 850;
}

button:hover {
  border-color: #9fb0c5;
  box-shadow: 0 8px 18px rgba(23, 59, 100, .12);
}

.shell {
  width: min(1180px, calc(100% - 28px));
  margin: 0 auto;
  padding: 22px 0 44px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  color: #fff8ea;
  margin-bottom: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.mark {
  width: 46px;
  height: 46px;
  border-radius: 8px;
  background: var(--cream);
  color: var(--board);
  display: grid;
  place-items: center;
  font-weight: 950;
  box-shadow: inset 0 -8px 0 rgba(185, 130, 18, .22);
}

.brand strong {
  display: block;
  font-size: 1.05rem;
}

.brand span {
  display: block;
  margin-top: 2px;
  color: rgba(255,248,234,.75);
  font-size: .82rem;
}

.nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.nav a {
  text-decoration: none;
  border: 1px solid rgba(255,248,234,.24);
  border-radius: 999px;
  padding: 9px 12px;
  color: #fff8ea;
  font-weight: 850;
  font-size: .88rem;
}

.hero {
  border: 10px solid #315d23;
  border-radius: 8px;
  background:
    linear-gradient(rgba(255,255,255,.78), rgba(255,255,255,.72)),
    repeating-linear-gradient(90deg, rgba(88, 71, 41, .14) 0 1px, transparent 1px 18px),
    repeating-linear-gradient(0deg, rgba(88, 71, 41, .10) 0 1px, transparent 1px 18px),
    #efe8d7;
  box-shadow: var(--shadow);
  padding: clamp(20px, 4vw, 42px);
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, .9fr);
  gap: 22px;
  align-items: end;
}

.eyebrow {
  color: var(--gold);
  text-transform: uppercase;
  font-weight: 950;
  letter-spacing: .08em;
  font-size: .82rem;
  margin: 0 0 8px;
}

h1 {
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 5.1rem);
  line-height: .92;
  color: #183235;
}

.hero p {
  color: #3e4b4a;
  font-weight: 650;
  line-height: 1.55;
  margin: 16px 0 0;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.chips span {
  border: 1px solid rgba(49, 93, 35, .25);
  border-radius: 999px;
  background: rgba(255,255,255,.58);
  color: var(--blue);
  font-size: .8rem;
  font-weight: 900;
  padding: 8px 10px;
}

.hero-card {
  border-radius: 8px;
  background: rgba(20, 63, 66, .92);
  color: #fff8ea;
  padding: 18px;
  display: grid;
  gap: 12px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.metric {
  border: 1px solid rgba(255,248,234,.18);
  border-radius: 8px;
  padding: 10px;
  background: rgba(255,255,255,.08);
}

.metric strong {
  display: block;
  color: #f4c542;
  font-size: 1.25rem;
}

.metric span {
  display: block;
  margin-top: 4px;
  color: rgba(255,248,234,.82);
  font-size: .78rem;
  font-weight: 800;
}

.main-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, .9fr);
  gap: 18px;
  margin-top: 18px;
  align-items: start;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255,255,255,.94);
  box-shadow: var(--shadow);
  padding: 18px;
}

.panel h2 {
  margin: 0 0 10px;
  color: #183235;
  font-size: 1.3rem;
}

.reading-text {
  margin: 0;
  color: #26364e;
  font-size: 1.12rem;
  line-height: 1.75;
}

.toolbar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.primary {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
  padding: 0 14px;
}

.gold {
  background: var(--gold-2);
  color: #231507;
  border-color: var(--gold-2);
}

textarea {
  width: 100%;
  min-height: 170px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  line-height: 1.5;
  resize: vertical;
}

.feedback {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.feedback-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f7faf9;
  padding: 10px;
  line-height: 1.4;
}

.feedback-item strong {
  color: var(--blue);
}

.score-ring {
  width: 132px;
  height: 132px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  margin: 0 auto 14px;
  background: conic-gradient(var(--leaf) var(--score, 0%), #e6edf1 0);
}

.score-ring span {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #fff;
  color: var(--blue);
  font-size: 1.8rem;
  font-weight: 950;
}

.task-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.task-list li {
  border-left: 5px solid var(--gold-2);
  border-radius: 8px;
  background: #fff8ea;
  padding: 10px 12px;
  color: #39434f;
  line-height: 1.4;
}

.curriculum-map {
  display: grid;
  gap: 12px;
}

.unit-card {
  border: 1px solid rgba(45, 128, 99, .2);
  border-left: 5px solid var(--leaf);
  border-radius: 8px;
  background: linear-gradient(180deg, #fff, #f3faf5);
  padding: 12px;
  width: 100%;
  text-align: left;
  cursor: pointer;
}

.unit-card strong {
  display: block;
  color: var(--blue);
  font-size: 1rem;
  margin-bottom: 6px;
}

.unit-card p {
  margin: 0;
  color: #4d625e;
  line-height: 1.42;
  font-size: .92rem;
}

.unit-card.active {
  border-color: rgba(23, 59, 100, .38);
  border-left-color: var(--gold-2);
  box-shadow: 0 12px 28px rgba(45, 128, 99, .14);
}

.unit-kicker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  background: #eef8ef;
  color: var(--leaf);
  font-size: .75rem;
  font-weight: 950;
  padding: 6px 9px;
  margin-bottom: 8px;
}

.unit-quiz {
  display: grid;
  gap: 12px;
}

.unit-quiz-meta {
  color: var(--muted);
  font-size: .86rem;
  font-weight: 850;
  text-transform: uppercase;
}

.mentor-bank {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.mentor-bank span {
  border: 1px solid rgba(23, 59, 100, .16);
  border-radius: 999px;
  background: #f7faf9;
  color: var(--blue);
  font-size: .8rem;
  font-weight: 850;
  padding: 7px 9px;
}

.test-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(270px, .45fr);
  gap: 18px;
  margin-top: 18px;
}

.question {
  display: grid;
  gap: 12px;
}

.question h2 {
  line-height: 1.35;
}

.options {
  display: grid;
  gap: 10px;
}

.option {
  width: 100%;
  text-align: left;
  padding: 12px;
  min-height: 52px;
}

.option.correct {
  background: #dff3e9;
  border-color: #76b794;
}

.option.wrong {
  background: #ffe5df;
  border-color: #e59a8d;
}

.select-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin: 12px 0 0;
}

select {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 0 10px;
}

@media (max-width: 840px) {
  .hero, .main-grid, .test-layout {
    grid-template-columns: 1fr;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .metric-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2.6rem;
  }
}