:root {
  --bg: #f7f4ea;
  --card: #fffdf8;
  --ink: #17211f;
  --muted: #4f5f59;
  --line: #d2cab8;
  --accent: #006a63;
  --accent-soft: #d8f0ec;
  --accent-warm: #da5922;
  --correct: #137b40;
  --wrong: #ad1e2b;
  --shadow: 0 18px 40px rgba(35, 28, 19, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 10% 10%, #f3ead0 0%, transparent 40%),
    radial-gradient(circle at 90% 15%, #d8ece7 0%, transparent 42%),
    linear-gradient(180deg, var(--bg) 0%, #f3efdf 100%);
  color: var(--ink);
  font-family: "Sora", sans-serif;
  line-height: 1.5;
  padding: 1.5rem;
  position: relative;
}

.bg-shape {
  position: fixed;
  border-radius: 999px;
  z-index: 0;
  opacity: 0.35;
  filter: blur(1px);
  pointer-events: none;
}

.bg-shape-1 {
  width: 300px;
  height: 300px;
  right: -90px;
  top: -70px;
  background: #f2c49f;
}

.bg-shape-2 {
  width: 240px;
  height: 240px;
  left: -80px;
  bottom: -60px;
  background: #aedfd3;
}

.app-shell {
  max-width: 1120px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

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

.hidden {
  display: none;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
  padding: 1.2rem;
}

.hero {
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.94), rgba(237, 246, 243, 0.82));
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  font-weight: 700;
}

h1,
h2,
h3,
h4 {
  font-family: "Fraunces", serif;
  margin: 0.2rem 0 0.7rem;
  line-height: 1.2;
}

h1 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
}

h2 {
  font-size: clamp(1.3rem, 2.2vw, 1.8rem);
}

h3 {
  font-size: clamp(1.06rem, 1.8vw, 1.36rem);
}

.hero-copy {
  margin: 0;
  color: var(--muted);
  max-width: 66ch;
}

.hero-stats {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.stat-chip {
  border: 1px solid #b9d7cf;
  background: var(--accent-soft);
  color: #154843;
  font-size: 0.86rem;
  padding: 0.4rem 0.65rem;
  border-radius: 999px;
}

.setup-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.7rem;
  align-items: end;
}

.setting {
  display: grid;
  gap: 0.28rem;
  font-size: 0.9rem;
  color: #2f3e3b;
}

.setting select {
  border: 1px solid #c9c4b4;
  background: #fff;
  border-radius: 10px;
  font-size: 0.92rem;
  padding: 0.45rem 0.52rem;
  color: #253431;
}

.setting-inline {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding-bottom: 0.4rem;
}

.setting-inline input {
  width: 1rem;
  height: 1rem;
}

.setup-note {
  margin: 0.7rem 0 0;
  color: var(--muted);
  font-size: 0.89rem;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.context-status {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.8rem;
  margin-top: 0.7rem;
}

.topic-card {
  border: 1px solid #c9d7ce;
  border-radius: 16px;
  background: #fbfefc;
  padding: 0.95rem;
  display: grid;
  gap: 0.6rem;
}

.topic-card h3 {
  margin: 0;
}

.topic-meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.set-row {
  display: grid;
  gap: 0.3rem;
}

.set-row span {
  font-size: 0.86rem;
  color: #38544e;
}

.set-select {
  border: 1px solid #c9c4b4;
  border-radius: 10px;
  padding: 0.45rem 0.5rem;
  background: #fff;
  color: #253431;
  font-size: 0.9rem;
}

.practice-top {
  gap: 0.75rem;
}

.practice-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem;
}

.ghost-btn,
.primary-btn,
.secondary-btn {
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  padding: 0.55rem 0.95rem;
}

.ghost-btn {
  background: #f2f1ea;
  border-color: #d1cfbf;
  color: #2f3b38;
}

.primary-btn {
  background: var(--accent);
  color: #fff;
}

.secondary-btn {
  background: #fff;
  border-color: #c8c4b5;
  color: #32413e;
}

.ghost-btn:disabled,
.primary-btn:disabled,
.secondary-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.topic-pill {
  margin: 0;
  font-size: 0.87rem;
  color: #184d47;
  background: var(--accent-soft);
  border: 1px solid #b4dbd2;
  border-radius: 999px;
  padding: 0.25rem 0.65rem;
}

.score-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  color: var(--muted);
  font-size: 0.94rem;
}

.score-row p {
  margin: 0;
}

.timer-text {
  color: #15564f;
  font-weight: 700;
}

.progress-track {
  width: 100%;
  height: 10px;
  background: #e3decc;
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), #1d9a8e);
  transition: width 220ms ease;
}

.practice-layout {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr) 320px;
  align-items: start;
}

.question-card {
  display: grid;
  gap: 1rem;
}

.question-type {
  margin: 0;
  color: var(--accent-warm);
  font-size: 0.83rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-weight: 700;
}

.options-form {
  display: grid;
  gap: 0.65rem;
}

.option-item {
  border: 1px solid #d5d2c5;
  border-radius: 14px;
  padding: 0.7rem 0.8rem;
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  cursor: pointer;
  background: #fffdf8;
  transition: border-color 150ms ease, background-color 150ms ease;
}

.option-item.readonly {
  cursor: default;
  background: #fdfcf5;
}

.option-item input {
  margin-top: 0.2rem;
}

.option-item span {
  color: #1f2b28;
}

.option-item:hover {
  border-color: #7fa79c;
  background: #f9fdfb;
}

.option-item.selected {
  border-color: #539d8f;
  background: #eff7f5;
}

.option-item.correct {
  border-color: #2c9f56;
  background: #eaf8ee;
}

.option-item.wrong {
  border-color: #d34c5b;
  background: #fdeff1;
}

.typed-wrap {
  display: grid;
  gap: 0.4rem;
}

.typed-wrap label {
  font-size: 0.9rem;
  color: #28453f;
}

#typed-answer-input {
  border: 1px solid #c9c4b4;
  border-radius: 12px;
  font-size: 0.95rem;
  font-family: inherit;
  color: #253431;
  padding: 0.62rem;
  resize: vertical;
  min-height: 88px;
}

#typed-answer-input:disabled {
  background: #f3f0e8;
  color: #4e5753;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.feedback {
  border-top: 1px solid #ddd6c5;
  padding-top: 0.8rem;
}

.feedback h4 {
  margin-bottom: 0.35rem;
}

.feedback.ok h4 {
  color: var(--correct);
}

.feedback.bad h4 {
  color: var(--wrong);
}

.feedback p {
  margin: 0.35rem 0;
  color: #293633;
}

.feedback-mini {
  font-size: 0.9rem;
  color: #3a4a46;
}

.context-block {
  margin-top: 0.8rem;
  background: #f5fbf9;
  border: 1px solid #d2e5df;
  border-radius: 12px;
  padding: 0.75rem;
}

.context-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: #15564f;
  margin: 0 0 0.2rem;
}

#feedback-context {
  white-space: pre-wrap;
}

.previous-card {
  opacity: 0.7;
}

.previous-card h3 {
  margin-top: 0;
}

.previous-empty {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0;
}

.side-label {
  margin: 0.6rem 0 0.15rem;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #3d6159;
}

#previous-question-text,
#previous-user-answer,
#previous-correct-answer,
#previous-result {
  margin: 0;
  color: #253431;
  font-size: 0.91rem;
}

#previous-result.ok {
  color: var(--correct);
  font-weight: 700;
}

#previous-result.bad {
  color: var(--wrong);
  font-weight: 700;
}

@media (max-width: 980px) {
  .practice-layout {
    grid-template-columns: 1fr;
  }

  .previous-card {
    opacity: 1;
  }
}

@media (max-width: 640px) {
  body {
    padding: 0.9rem;
  }

  .card {
    border-radius: 14px;
    padding: 0.9rem;
  }

  .topic-grid {
    grid-template-columns: 1fr;
  }

  .setup-grid {
    grid-template-columns: 1fr;
  }
}