:root {
  --ink: #22170d;
  --muted: #7a6048;
  --paper: #f5ead2;
  --paper-deep: #ead7b5;
  --panel: rgba(255, 248, 230, 0.9);
  --line: rgba(83, 52, 25, 0.22);
  --red: #8d241c;
  --gold: #b48237;
  --green: #2f6b4f;
  --shadow: 0 20px 60px rgba(52, 31, 12, 0.18);
  color: var(--ink);
  font-family: "Songti SC", "STSong", "Noto Serif CJK SC", Georgia, serif;
  background: var(--paper);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 18% 12%, rgba(184, 130, 58, 0.26), transparent 34%),
    radial-gradient(circle at 82% 8%, rgba(101, 48, 30, 0.16), transparent 30%),
    linear-gradient(120deg, #efe0bd 0%, #f8efd8 42%, #e8d2aa 100%);
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.28;
  background-image:
    linear-gradient(rgba(81, 55, 27, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(81, 55, 27, 0.04) 1px, transparent 1px);
  background-size: 28px 28px;
  mix-blend-mode: multiply;
}

.topbar {
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid var(--line);
  background: rgba(245, 234, 210, 0.86);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.seal {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  color: #f9ecd2;
  background: var(--red);
  border: 2px solid rgba(80, 16, 12, 0.32);
  font-size: 25px;
  font-weight: 700;
}

h1,
h2,
h3,
p {
  margin: 0;
}

.brand h1 {
  font-size: 24px;
  line-height: 1.1;
  letter-spacing: 0;
}

.brand p,
footer p {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

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

.nav a {
  color: var(--ink);
  text-decoration: none;
  padding: 9px 12px;
  border: 1px solid transparent;
  font-size: 15px;
}

.nav a:hover {
  border-color: var(--line);
  background: rgba(255, 249, 232, 0.5);
}

main {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 40px;
  align-items: center;
  min-height: 330px;
  padding: 44px 0 28px;
}

.hero-copy h2 {
  max-width: 760px;
  font-size: clamp(42px, 6vw, 76px);
  line-height: 0.95;
  font-weight: 800;
}

.hero-copy p {
  width: min(620px, 100%);
  margin-top: 24px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.9;
}

.hero-board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  padding: 20px;
  border: 1px solid var(--line);
  background: rgba(255, 248, 230, 0.42);
  box-shadow: var(--shadow);
}

.mini-card {
  display: grid;
  place-items: center;
  aspect-ratio: 3 / 4.5;
  border: 1px solid rgba(106, 67, 31, 0.35);
  background:
    linear-gradient(180deg, rgba(255, 252, 239, 0.86), rgba(226, 195, 134, 0.45)),
    repeating-linear-gradient(90deg, transparent 0 10px, rgba(119, 78, 36, 0.06) 10px 11px);
  color: var(--red);
  font-size: 50px;
  font-weight: 800;
}

.workspace {
  display: grid;
  grid-template-columns: 400px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
  padding: 18px 0 34px;
}

.panel,
.rules,
.library {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.panel {
  padding: 22px;
}

.section-title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 20px;
}

.section-title span {
  color: var(--red);
  font-size: 13px;
  font-weight: 700;
}

.section-title h2 {
  font-size: 24px;
}

.field,
.draw-mode {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
}

.field span,
.draw-mode legend {
  color: var(--muted);
  font-size: 14px;
}

textarea,
select,
input {
  width: 100%;
  border: 1px solid rgba(91, 58, 25, 0.3);
  border-radius: 0;
  background: rgba(255, 253, 242, 0.84);
  color: var(--ink);
  padding: 12px 13px;
  font: 16px/1.5 inherit;
  outline: none;
}

textarea:focus,
select:focus,
input:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(141, 36, 28, 0.12);
}

.field-grid {
  display: grid;
  grid-template-columns: 1fr;
}

.draw-mode {
  border: 1px solid rgba(91, 58, 25, 0.2);
  padding: 12px;
}

.draw-mode label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
}

.draw-mode input {
  width: auto;
}

.number-field,
.offline-field {
  display: none;
}

.number-field.visible,
.offline-field.visible {
  display: grid;
}

.offline-field {
  gap: 12px;
  margin-bottom: 18px;
  padding: 12px;
  border: 1px solid rgba(91, 58, 25, 0.2);
  background: rgba(255, 253, 242, 0.38);
}

.offline-field p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.offline-selects {
  display: grid;
  gap: 10px;
}

.offline-selects label {
  display: grid;
  gap: 6px;
}

.offline-selects span {
  color: var(--muted);
  font-size: 13px;
}

.actions {
  display: flex;
  gap: 10px;
}

button {
  border: 1px solid rgba(75, 43, 18, 0.36);
  border-radius: 0;
  padding: 12px 18px;
  font: 700 15px/1 inherit;
  cursor: pointer;
}

.primary {
  color: #fff8e5;
  background: var(--red);
}

.secondary {
  color: var(--ink);
  background: rgba(255, 249, 232, 0.78);
}

button:hover {
  transform: translateY(-1px);
}

.result-panel {
  min-height: 520px;
}

.empty-state {
  display: grid;
  place-items: center;
  min-height: 420px;
  border: 1px dashed rgba(101, 64, 29, 0.3);
  color: var(--muted);
  text-align: center;
}

.hidden {
  display: none;
}

.summary {
  padding: 18px;
  border-left: 4px solid var(--red);
  background: rgba(242, 224, 186, 0.5);
}

.summary-kicker {
  color: var(--red);
  font-size: 13px;
  font-weight: 700;
}

.summary h3 {
  margin-top: 8px;
  font-size: 28px;
}

.summary p:last-child {
  margin-top: 10px;
  color: var(--muted);
  line-height: 1.8;
}

.spread-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.oracle-card {
  position: relative;
  min-height: 260px;
  padding: 16px;
  border: 1px solid rgba(92, 56, 24, 0.36);
  background:
    linear-gradient(180deg, rgba(255, 252, 240, 0.95), rgba(232, 208, 162, 0.62)),
    repeating-linear-gradient(90deg, transparent 0 9px, rgba(96, 62, 28, 0.05) 9px 10px);
}

.position {
  color: var(--muted);
  font-size: 13px;
}

.card-name {
  margin-top: 16px;
  color: var(--red);
  font-size: 34px;
  font-weight: 800;
  line-height: 1.1;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.tag {
  padding: 4px 8px;
  border: 1px solid rgba(87, 55, 26, 0.2);
  color: var(--muted);
  background: rgba(255, 249, 232, 0.6);
  font-size: 13px;
}

.tag.good {
  color: var(--green);
}

.tag.bad {
  color: var(--red);
}

.meaning {
  margin-top: 16px;
  color: #3e2c1c;
  font-size: 15px;
  line-height: 1.8;
}

.interpretation {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.note {
  padding: 14px 16px;
  border: 1px solid rgba(91, 58, 25, 0.2);
  background: rgba(255, 253, 242, 0.66);
  line-height: 1.75;
}

.note strong {
  color: var(--red);
}

.rules,
.library {
  margin: 28px 0;
  padding: 26px;
}

.rule-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.rule-grid article {
  padding: 18px;
  border-top: 3px solid rgba(141, 36, 28, 0.72);
  background: rgba(255, 253, 242, 0.54);
}

.rule-grid h3 {
  font-size: 20px;
}

.rule-grid p {
  margin-top: 10px;
  color: var(--muted);
  line-height: 1.7;
}

.library-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.library-tabs button {
  padding: 9px 12px;
  background: rgba(255, 249, 232, 0.64);
  color: var(--ink);
}

.library-tabs button.active {
  background: var(--ink);
  color: #fff8e5;
}

.library-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.library-card {
  min-height: 150px;
  padding: 14px;
  border: 1px solid rgba(91, 58, 25, 0.22);
  background: rgba(255, 253, 242, 0.62);
}

.library-card h3 {
  color: var(--red);
  font-size: 22px;
}

.library-card p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

footer {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 22px 0 38px;
}

@media (max-width: 920px) {
  .topbar,
  .hero,
  .workspace {
    grid-template-columns: 1fr;
  }

  .topbar {
    display: grid;
  }

  .hero-board {
    max-width: 420px;
  }

  .rule-grid,
  .library-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  main,
  footer {
    width: min(100% - 22px, 1180px);
  }

  .nav {
    width: 100%;
    justify-content: space-between;
  }

  .hero-copy h2 {
    font-size: 44px;
  }

  .spread-cards,
  .rule-grid,
  .library-grid {
    grid-template-columns: 1fr;
  }

  .panel,
  .rules,
  .library {
    padding: 16px;
  }
}