:root {
  --ink: #15171c;
  --surface: #1c1f26;
  --surface-raised: #232630;
  --line: #2b2f39;
  --text: #e8eae3;
  --text-dim: #9199a3;
  --lime: #a6e13d;
  --lime-dim: #7ea832;
  --gold: #e8b23d;
  --cyan: #57d0c9;
  --tag-bg: rgba(166, 225, 61, 0.12);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 32px rgba(0, 0, 0, 0.35);
}

@media (prefers-color-scheme: light) {
  :root {
    --ink: #efe6cc;
    --surface: #faf4e3;
    --surface-raised: #fffcf3;
    --line: #d8c89c;
    --text: #2b2415;
    --text-dim: #766a4c;
    --lime: #5c832c;
    --lime-dim: #46681f;
    --gold: #91701c;
    --cyan: #1c7a7f;
    --tag-bg: rgba(92, 131, 44, 0.12);
    --shadow: 0 1px 2px rgba(60, 50, 20, 0.08), 0 12px 28px rgba(60, 50, 20, 0.08);
  }
}

:root[data-theme="dark"] {
  --ink: #15171c;
  --surface: #1c1f26;
  --surface-raised: #232630;
  --line: #2b2f39;
  --text: #e8eae3;
  --text-dim: #9199a3;
  --lime: #a6e13d;
  --lime-dim: #7ea832;
  --gold: #e8b23d;
  --cyan: #57d0c9;
  --tag-bg: rgba(166, 225, 61, 0.12);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 32px rgba(0, 0, 0, 0.35);
}

:root[data-theme="light"] {
  --ink: #efe6cc;
  --surface: #faf4e3;
  --surface-raised: #fffcf3;
  --line: #d8c89c;
  --text: #2b2415;
  --text-dim: #766a4c;
  --lime: #5c832c;
  --lime-dim: #46681f;
  --gold: #91701c;
  --cyan: #1c7a7f;
  --tag-bg: rgba(92, 131, 44, 0.12);
  --shadow: 0 1px 2px rgba(60, 50, 20, 0.08), 0 12px 28px rgba(60, 50, 20, 0.08);
}

* {
  box-sizing: border-box;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Pretendard, "Apple SD Gothic Neo", Roboto, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.mono {
  font-family: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", Menlo, Consolas, monospace;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 8px 20px 90px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* Hero */

.hero {
  padding: 60px 20px 36px;
  border-bottom: 1px solid var(--line);
}

.hero-inner {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.mark {
  width: 40px;
  height: 40px;
}

.hero h1 {
  margin: 0;
  font-size: 2.1rem;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

.tagline {
  color: var(--text-dim);
  font-size: 1.02rem;
  max-width: 46em;
  margin: 0;
}

.statusline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  font-family: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", Menlo, Consolas, monospace;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}

.statusline span {
  padding: 3px 12px 3px 0;
  margin-right: 12px;
  border-right: 1px solid var(--line);
}

.statusline span:last-child {
  border-right: none;
}

.statusline .hl {
  color: var(--lime);
}

/* Nav */

.toc {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  gap: 2px;
  overflow-x: auto;
  padding: 10px 20px;
  background: color-mix(in srgb, var(--ink) 90%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  scrollbar-width: none;
  font-family: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", Menlo, Consolas, monospace;
}

.toc::-webkit-scrollbar {
  display: none;
}

.toc a {
  flex: none;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 3px;
}

.toc a:hover,
.toc a:focus-visible {
  background: var(--tag-bg);
  color: var(--lime);
}

/* Sections */

section, footer.note {
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 56px;
}

section:last-of-type {
  border-bottom: none;
}

.section-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 16px;
}

.tag {
  font-family: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", Menlo, Consolas, monospace;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--lime);
  background: var(--tag-bg);
  border: 1px solid color-mix(in srgb, var(--lime) 35%, transparent);
  border-radius: 3px;
  padding: 3px 7px;
  white-space: nowrap;
}

h2 {
  margin: 0;
  font-size: 1.15rem;
  letter-spacing: -0.005em;
}

h3 {
  margin: 26px 0 12px;
  font-size: 0.95rem;
  color: var(--text-dim);
  font-weight: 600;
}

ul {
  margin: 0;
  padding-left: 1.15em;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

p {
  margin: 0 0 8px;
}

strong {
  color: var(--lime);
  font-weight: 700;
}

code {
  font-family: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", Menlo, Consolas, monospace;
  font-size: 0.88em;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 1px 5px;
}

/* Project list */

.project-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.project-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.project-card:hover,
.project-card:focus-visible {
  border-color: var(--lime);
  background: var(--tag-bg);
}

.project-name {
  font-weight: 700;
  font-size: 1.02rem;
}

.project-desc {
  color: var(--text-dim);
  font-size: 0.88rem;
}

.project-meta {
  margin-top: 4px;
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--lime);
}

/* Table */

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 6px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th, td {
  text-align: left;
  padding: 9px 13px;
  border-bottom: 1px solid var(--line);
}

th {
  font-family: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", Menlo, Consolas, monospace;
  background: var(--surface);
  color: var(--text-dim);
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  width: 34%;
}

tbody tr:last-child td {
  border-bottom: none;
}

/* Recipe */

.recipe {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.crafting-grid {
  display: grid;
  grid-template-columns: repeat(3, 56px);
  grid-template-rows: repeat(3, 56px);
  gap: 3px;
  padding: 6px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
}

.slot {
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--surface-raised);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04), inset 0 -1px 0 rgba(0, 0, 0, 0.25);
}

.slot-empty {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
}

.slot-swatch {
  width: 26px;
  height: 26px;
  border-radius: 2px;
}

.slot-gold .slot-swatch {
  background: linear-gradient(155deg, var(--gold), color-mix(in srgb, var(--gold) 55%, black));
}

.slot-diamond .slot-swatch {
  background: linear-gradient(155deg, var(--cyan), color-mix(in srgb, var(--cyan) 55%, black));
}

.slot-banner .slot-swatch {
  width: 18px;
  height: 26px;
  border-radius: 1px;
  background: #cac6b4;
  clip-path: polygon(0 0, 100% 0, 100% 78%, 50% 100%, 0 78%);
}

.recipe-arrow {
  font-family: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", Menlo, Consolas, monospace;
  font-size: 1.2rem;
  color: var(--text-dim);
}

.result-slot {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  width: 84px;
  height: 84px;
  border: 1px solid var(--lime);
  border-radius: 4px;
  background: var(--tag-bg);
}

.result-swatch {
  width: 28px;
  height: 20px;
  background: linear-gradient(180deg, var(--lime), var(--lime-dim));
  border-radius: 1px;
  clip-path: polygon(0 0, 100% 0, 100% 70%, 50% 100%, 0 70%);
}

.result-name {
  font-weight: 700;
  font-size: 0.74rem;
}

.result-sub {
  font-size: 0.64rem;
  color: var(--text-dim);
  font-family: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", Menlo, Consolas, monospace;
}

.recipe-legend {
  margin-top: 12px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: var(--text-dim);
}

.recipe-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.legend-swatch {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  display: inline-block;
}

.legend-swatch.gold { background: var(--gold); }
.legend-swatch.diamond { background: var(--cyan); }
.legend-swatch.banner { background: #cac6b4; }

/* Note */

.note-box {
  display: flex;
  gap: 10px;
  align-items: baseline;
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 4px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  background: var(--surface);
}

.note-box p {
  margin: 0;
  font-size: 0.9rem;
}

.note-box .tag {
  color: var(--gold);
  border-color: color-mix(in srgb, var(--gold) 35%, transparent);
  background: rgba(232, 178, 61, 0.12);
  flex: none;
}

footer.note {
  max-width: 760px;
  margin: 0 auto;
  border-bottom: none;
}

footer.note .note-box {
  margin-top: 0;
  border-left-color: var(--cyan);
}

footer.note .note-box .tag {
  color: var(--cyan);
  border-color: color-mix(in srgb, var(--cyan) 35%, transparent);
  background: rgba(87, 208, 201, 0.12);
}

/* Flow */

.flow {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.flow-step {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.flow-step:first-child {
  border-top: none;
  padding-top: 0;
}

.flow-step .tag {
  flex: none;
  margin-top: 2px;
}

.flow-body {
  flex: 1;
  min-width: 0;
}

.flow-body > p {
  margin: 0 0 4px;
  font-weight: 600;
}

.flow-body > .step-desc {
  color: var(--text-dim);
  font-size: 0.88rem;
  font-weight: 400;
  margin: 0;
}

.branches {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.branch {
  display: flex;
  gap: 8px;
  align-items: baseline;
  padding-left: 4px;
  border-left: 2px solid var(--line);
  padding: 4px 0 4px 12px;
  font-size: 0.86rem;
}

.branch .cond {
  font-family: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", Menlo, Consolas, monospace;
  font-size: 0.72rem;
  color: var(--cyan);
  flex: none;
  white-space: nowrap;
}

@media (max-width: 560px) {
  .hero { padding: 44px 16px 28px; }
  .hero h1 { font-size: 1.55rem; }
  section { padding: 26px 0; }
  .crafting-grid { grid-template-columns: repeat(3, 46px); grid-template-rows: repeat(3, 46px); }
  .result-slot { width: 72px; height: 72px; }
  .branch { flex-direction: column; gap: 2px; }
}