:root {
  color-scheme: light;
  --bg: #f7f6f2;
  --paper: #ffffff;
  --ink: #20272d;
  --muted: #65717c;
  --line: #dce1db;
  --green: #176b5b;
  --blue: #2f6690;
  --amber: #a46400;
  --red: #a64032;
  --soft-green: #e4f2ed;
  --soft-blue: #e6f0f7;
  --soft-amber: #fff1d8;
  --shadow: 0 18px 48px rgba(32, 39, 45, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(164, 100, 0, 0.11), transparent 330px),
    var(--bg);
  color: var(--ink);
  font-family:
    "Pretendard",
    "Noto Sans KR",
    "Segoe UI",
    system-ui,
    sans-serif;
}

button,
input {
  font: inherit;
}

button {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
}

button:hover,
a:hover {
  border-color: var(--green);
}

.page-shell {
  width: min(1220px, calc(100% - 32px));
  margin: 0 auto;
  padding: 26px 0 56px;
}

.top-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
  margin-bottom: 26px;
}

.top-links a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--green);
  font-weight: 800;
  text-decoration: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 22px;
  align-items: end;
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--amber);
  font-size: 14px;
  font-weight: 900;
}

h1 {
  margin: 0;
  font-size: clamp(34px, 6vw, 66px);
  line-height: 1.05;
  letter-spacing: 0;
}

.lead {
  max-width: 780px;
  margin: 18px 0 0;
  color: #4b5964;
  font-size: 18px;
  line-height: 1.7;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.summary-grid article {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.summary-grid span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.summary-grid strong {
  display: block;
  margin-top: 5px;
  font-size: 24px;
}

.toolbar {
  position: sticky;
  top: 0;
  z-index: 4;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 14px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 12px 32px rgba(32, 39, 45, 0.06);
  backdrop-filter: blur(12px);
}

.filter-block span,
.toggle {
  display: block;
  margin-bottom: 8px;
  color: #344450;
  font-size: 13px;
  font-weight: 800;
}

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

.chip {
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  color: var(--muted);
}

.chip.active {
  color: var(--green);
  border-color: #9ed8cc;
  background: var(--soft-green);
  font-weight: 800;
}

#searchInput {
  width: 100%;
  min-height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
}

.section-head {
  margin: 28px 0 14px;
}

.section-head h2 {
  margin: 0;
  font-size: 26px;
}

.section-head p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.prediction-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.prediction-card,
.drill-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.prediction-card {
  padding: 18px;
  border-top: 6px solid var(--amber);
}

.prediction-card.done,
.drill-card.done {
  opacity: 0.74;
}

.rank {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--soft-amber);
  color: #7a4b00;
  font-size: 12px;
  font-weight: 900;
}

.card-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  margin-top: 12px;
}

.card-head p {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.card-head h2,
.card-head h3 {
  margin: 0;
  line-height: 1.38;
  word-break: keep-all;
}

.card-head h2 {
  font-size: 22px;
}

.card-head h3 {
  font-size: 18px;
}

.done-btn {
  min-height: 38px;
  padding: 0 13px;
  color: var(--green);
  font-weight: 800;
}

.done-btn.active {
  border-color: #9ed8cc;
  background: var(--soft-green);
}

.question {
  margin: 16px 0;
  color: #33424e;
  font-size: 18px;
  line-height: 1.65;
  word-break: keep-all;
}

details {
  margin-top: 12px;
}

summary {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  color: var(--green);
  font-weight: 900;
  cursor: pointer;
}

.answer-block {
  display: grid;
  gap: 10px;
  margin-top: 8px;
  padding: 14px;
  border-radius: 8px;
  background: #f8faf8;
}

.answer-block h3 {
  margin: 0;
  color: #344450;
  font-size: 14px;
}

.answer-block p,
.answer-block li {
  margin: 0;
  color: #43515d;
  line-height: 1.6;
  word-break: keep-all;
}

.answer-block ul {
  margin: 0;
  padding-left: 20px;
}

.source-list {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 4px;
}

.source-list span {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 0 9px;
  border-radius: 999px;
  background: #eef2f6;
  color: #40505d;
  font-size: 12px;
  font-weight: 800;
}

.drill-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.drill-card {
  padding: 16px;
  border-left: 5px solid var(--green);
}

.answer-block.compact {
  padding: 12px;
}

.empty-state {
  display: grid;
  min-height: 220px;
  place-items: center;
  border: 1px dashed #c9d5dc;
  border-radius: 8px;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 980px) {
  .hero,
  .toolbar,
  .prediction-grid,
  .drill-grid {
    grid-template-columns: 1fr;
  }

  .toolbar {
    position: static;
  }
}

@media (max-width: 620px) {
  .page-shell {
    width: min(100% - 20px, 1220px);
    padding-top: 16px;
  }

  .top-links {
    justify-content: flex-start;
  }

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

  .card-head {
    grid-template-columns: 1fr;
  }

  .done-btn {
    width: 100%;
  }
}