/* Shared j4fun theme and page-specific components. */
:root {
  --bg: #0f3630;
  --bg-deep: #0a2723;
  --bg-card: #133f38;
  --gold: #e3b23c;
  --gold-deep: #b8862a;
  --red: #d6444f;
  --red-deep: #a9313a;
  --paper: #f6efe0;
  --paper-line: #e2d7bc;
  --ink: #241f16;
  --ink-soft: #57503f;
  --text: #f3efe4;
  --text-dim: #9fc0b7;
  --text-faint: #6f9089;

  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --serif: "Noto Serif SC", "Songti SC", serif;
  --display: "ZCOOL KuaiLe", var(--sans);
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
  background-image:
    radial-gradient(circle at 15% 8%, rgba(227, 178, 60, 0.1), transparent 40%),
    radial-gradient(circle at 85% 90%, rgba(214, 68, 79, 0.1), transparent 45%);
}
a {
  color: inherit;
}
::selection {
  background: var(--gold);
  color: var(--ink);
}
:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}
.wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 22px;
}
[hidden] {
  display: none !important;
}

/* petals */
#petals {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 5;
  overflow: hidden;
}
.petal {
  position: absolute;
  top: -24px;
  font-size: 18px;
  opacity: 0.85;
  animation: fall linear forwards;
  filter: drop-shadow(0 0 3px rgba(0, 0, 0, 0.2));
}
@keyframes fall {
  to {
    transform: translateY(105vh) rotate(340deg);
    opacity: 0.15;
  }
}
@media (prefers-reduced-motion: reduce) {
  .petal {
    animation: none;
    display: none;
  }
}

/* header */
header.site {
  padding: 22px 0 6px;
  position: relative;
  z-index: 2;
}
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.brand .name {
  font-family: var(--display);
  font-size: 26px;
  color: var(--gold);
  letter-spacing: 0.03em;
}
.brand .sub {
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
nav.top-links {
  display: flex;
  gap: 18px;
  font-size: 13px;
  color: var(--text-dim);
}
nav.top-links a {
  text-decoration: none;
  border-bottom: 1px dotted var(--text-faint);
  padding-bottom: 2px;
}
nav.top-links a:hover {
  color: var(--gold);
  border-color: var(--gold);
}

/* hero */
.hero {
  padding: 30px 0 20px;
  text-align: center;
  position: relative;
  z-index: 2;
}
.hero .eyebrow {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold);
  text-transform: uppercase;
  font-weight: 700;
  margin: 0 0 12px;
}
.hero h1 {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(30px, 6vw, 50px);
  margin: 0 0 14px;
  color: var(--text);
  line-height: 1.3;
}
.hero h1 .accent {
  color: var(--red);
}
.hero p.lede {
  color: var(--text-dim);
  max-width: 52ch;
  margin: 0 auto 8px;
  font-size: 15px;
}

/* mode tabs */
.corpus-picker {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 20px;
  padding: 18px 20px;
  border: 1px solid rgba(227, 178, 60, 0.18);
  border-radius: 16px;
  background: rgba(19, 63, 56, 0.72);
}
.corpus-copy h2 {
  margin: 0 0 3px;
  color: var(--text);
  font-family: var(--display);
  font-size: 17px;
  font-weight: 400;
}
.corpus-copy p {
  margin: 0;
  color: var(--text-faint);
  font-size: 12px;
}
.corpus-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}
.corpus-btn,
.corpus-refresh,
.script-btn {
  padding: 7px 13px;
  border: 1px solid rgba(227, 178, 60, 0.3);
  border-radius: 999px;
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  font-family: var(--sans);
  font-size: 12.5px;
}
.corpus-btn small {
  color: var(--text-faint);
  font-size: 10px;
}
.corpus-btn:hover,
.corpus-refresh:hover,
.script-btn:hover {
  border-color: var(--gold);
  color: var(--text);
}
.corpus-btn.active {
  border-color: var(--gold);
  background: var(--gold);
  color: var(--ink);
  font-weight: 700;
}
.script-btn.active {
  border-color: var(--gold);
  background: rgba(227, 178, 60, 0.16);
  color: var(--gold);
  font-weight: 700;
}
.corpus-btn.active small {
  color: var(--ink-soft);
}
.corpus-btn:disabled,
.corpus-refresh:disabled,
.script-btn:disabled {
  cursor: wait;
  opacity: 0.55;
}
.corpus-refresh {
  border-color: rgba(214, 68, 79, 0.45);
  color: #f0a3a3;
}
.corpus-divider {
  width: 1px;
  min-height: 28px;
  margin-inline: 3px;
  background: rgba(159, 192, 183, 0.25);
}
.script-label {
  align-self: center;
  color: var(--text-faint);
  font-size: 11px;
}
.mode-tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin: 26px 0 8px;
  flex-wrap: wrap;
}
@media (max-width: 700px) {
  .corpus-picker {
    align-items: stretch;
    flex-direction: column;
    text-align: center;
  }
  .corpus-actions {
    justify-content: center;
  }
}
.mode-tab {
  font-family: var(--display);
  font-size: 16px;
  padding: 11px 22px;
  background: var(--bg-card);
  border: 2px solid transparent;
  color: var(--text-dim);
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.mode-tab:hover {
  color: var(--text);
}
.mode-tab.active {
  background: var(--gold);
  color: var(--ink);
  box-shadow: 0 4px 0 var(--gold-deep);
}

main {
  position: relative;
  z-index: 2;
  padding-bottom: 60px;
}

/* game panel shared */
.panel {
  background: var(--bg-card);
  border-radius: 18px;
  padding: 30px 26px;
  margin-top: 18px;
  border: 1px solid rgba(227, 178, 60, 0.18);
}
.panel-head {
  text-align: center;
  margin-bottom: 22px;
}
.panel-head h2 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 22px;
  color: var(--text);
  margin: 0 0 6px;
}
.panel-head p {
  font-size: 13px;
  color: var(--text-dim);
  margin: 0;
}

/* target char badge */
.target-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin: 8px 0 22px;
}
.target-char {
  width: 96px;
  height: 96px;
  border-radius: 20px;
  background: var(--red);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-size: 52px;
  font-weight: 700;
  color: var(--paper);
  box-shadow: 0 6px 0 var(--red-deep);
  transform: rotate(-2deg);
}
.target-label {
  font-size: 12px;
  color: var(--text-dim);
}

.score-row {
  display: flex;
  justify-content: center;
  gap: 26px;
  margin-bottom: 20px;
  font-size: 13px;
  color: var(--text-dim);
}
.score-row b {
  font-family: var(--display);
  font-size: 20px;
  color: var(--gold);
  display: block;
}

.input-row {
  display: flex;
  gap: 10px;
  max-width: 480px;
  margin: 0 auto;
}
.input-row input {
  flex: 1;
  min-width: 0;
  font-family: var(--serif);
  font-size: 17px;
  padding: 13px 16px;
  border-radius: 12px;
  border: none;
  background: var(--paper);
  color: var(--ink);
}
.input-row button {
  font-family: var(--display);
  font-size: 15px;
  padding: 0 22px;
  border-radius: 12px;
  background: var(--gold);
  color: var(--ink);
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 0 var(--gold-deep);
}
.input-row button:hover {
  filter: brightness(1.06);
}
.input-row button:active {
  transform: translateY(2px);
  box-shadow: 0 2px 0 var(--gold-deep);
}

.helper-row {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-top: 14px;
  flex-wrap: wrap;
}
.ghost-btn {
  font-size: 12.5px;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid rgba(159, 192, 183, 0.35);
  padding: 7px 14px;
  border-radius: 999px;
  cursor: pointer;
}
.ghost-btn:hover {
  color: var(--text);
  border-color: var(--gold);
}

/* feedback area */
.feedback {
  margin-top: 22px;
  text-align: center;
  min-height: 30px;
}
.feedback.ok {
  color: #a8e6b8;
}
.feedback.bad {
  color: #f0a3a3;
}

/* poem card (paper) */
.poem-card {
  background: var(--paper);
  color: var(--ink);
  border-radius: 14px;
  padding: 20px 22px;
  max-width: 480px;
  margin: 16px auto 0;
  box-shadow: 0 8px 0 var(--paper-line);
  text-align: left;
  position: relative;
}
.poem-card .verse {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.7;
}
.poem-card .src {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  font-size: 12px;
  color: var(--ink-soft);
  margin-top: 8px;
}
.poem-card .src a,
.chain-item .who a {
  color: inherit;
  text-decoration: none;
}
.poem-card .src a {
  display: flex;
  align-items: center;
  gap: 6px;
}
.poem-card .src a span,
.chain-item .who a span {
  color: var(--red-deep);
  font-weight: 700;
  white-space: nowrap;
}
.poem-card .src a:hover,
.chain-item .who a:hover {
  color: var(--red-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.poem-card .src .ai-explain-link {
  flex: none;
  padding: 4px 9px;
  border: 1px solid rgba(169, 49, 58, 0.28);
  border-radius: 999px;
  color: var(--red-deep);
  font-weight: 700;
  white-space: nowrap;
}
.poem-card .src .ai-explain-link:hover {
  background: rgba(214, 68, 79, 0.08);
  text-decoration: none;
}
@media (max-width: 520px) {
  .poem-card .src {
    align-items: flex-start;
    flex-direction: column;
  }
}
.poem-card .tag {
  position: absolute;
  top: -10px;
  right: 16px;
  background: var(--red);
  color: #fff;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 999px;
  font-weight: 700;
}

/* chain list */
.chain-list {
  max-width: 520px;
  margin: 20px auto 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.chain-item {
  background: var(--paper);
  color: var(--ink);
  border-radius: 10px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.chain-item .txt {
  font-family: var(--serif);
  font-size: 15.5px;
}
.chain-item .who {
  font-size: 11px;
  color: var(--ink-soft);
  flex: none;
}
.chain-item.start {
  border-left: 5px solid var(--gold);
}
.chain-item.player {
  border-left: 5px solid var(--red);
}

/* explore mode */
.explore-card {
  position: relative;
  background: var(--paper);
  color: var(--ink);
  border-radius: 18px;
  padding: 34px 32px;
  max-width: 560px;
  margin: 10px auto 0;
  text-align: center;
  box-shadow: 0 10px 0 var(--paper-line);
}
.favorite-button {
  position: absolute;
  top: 16px;
  right: 16px;
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(36, 31, 22, 0.16);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.55);
  cursor: pointer;
  font-size: 21px;
  transition: transform 0.15s ease, background 0.15s ease;
}
.favorite-button:hover {
  background: #fff;
  transform: scale(1.08);
}
.favorite-button.active {
  border-color: rgba(214, 68, 79, 0.35);
  background: rgba(214, 68, 79, 0.1);
}
.explore-card .dynasty-tag {
  display: inline-block;
  background: var(--gold);
  color: var(--ink);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.explore-card .title {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 24px;
  margin: 0 0 4px;
}
.explore-card .author {
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 18px;
}
.explore-card .lines {
  font-family: var(--serif);
  font-size: 17px;
  line-height: 2;
}
.explore-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid rgba(36, 31, 22, 0.12);
}
.explore-actions a {
  padding: 6px 12px;
  border: 1px solid rgba(36, 31, 22, 0.2);
  border-radius: 999px;
  color: var(--ink-soft);
  font-family: var(--sans);
  font-size: 11.5px;
  font-weight: 700;
  text-decoration: none;
}
.explore-actions a:hover {
  border-color: var(--red-deep);
  color: var(--red-deep);
}
.favorites-status {
  margin: -8px 0 18px;
  color: var(--text-dim);
  font-size: 12px;
  text-align: center;
}
.favorites-list {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.favorites-empty {
  grid-column: 1 / -1;
  padding: 42px 20px;
  border: 1px dashed rgba(159, 192, 183, 0.35);
  border-radius: 14px;
  color: var(--text-dim);
  text-align: center;
}
.favorite-card {
  position: relative;
  padding: 24px 22px;
  border-radius: 14px;
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 6px 0 var(--paper-line);
}
.favorite-card .dynasty-tag {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--gold);
  font-size: 10px;
  font-weight: 700;
}
.favorite-card h3 {
  margin: 0 0 3px;
  padding-right: 42px;
  font-family: var(--serif);
  font-size: 19px;
}
.favorite-card .author {
  margin-bottom: 14px;
  color: var(--ink-soft);
  font-size: 12px;
}
.favorite-card .lines {
  max-height: 240px;
  overflow: auto;
  font-family: var(--serif);
  font-size: 14px;
  line-height: 1.9;
}
.favorite-card .explore-actions {
  justify-content: flex-start;
  flex-wrap: wrap;
  margin-top: 18px;
}
.favorite-remove {
  position: absolute;
  top: 18px;
  right: 18px;
  border: 0;
  background: transparent;
  color: var(--red-deep);
  cursor: pointer;
  font-size: 11px;
}
.favorite-remove:hover {
  text-decoration: underline;
}
.explore-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}
.explore-nav button {
  font-family: var(--display);
  font-size: 15px;
  padding: 10px 24px;
  border-radius: 999px;
  background: var(--gold);
  color: var(--ink);
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 0 var(--gold-deep);
}
.explore-nav button.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(227, 178, 60, 0.4);
  box-shadow: none;
}
.poem-card .verse-row,
.chain-item {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: space-between;
}

/* keyword picker */
.kw-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin: 4px 0 24px;
}
.kw-chip {
  font-family: var(--serif);
  font-size: 15px;
  padding: 7px 16px;
  border-radius: 999px;
  background: rgba(227, 178, 60, 0.12);
  color: var(--gold);
  border: 1px solid rgba(227, 178, 60, 0.3);
  cursor: pointer;
}
.kw-chip:hover {
  background: rgba(227, 178, 60, 0.25);
}
.kw-chip.active {
  background: var(--gold);
  color: var(--ink);
}

section.about {
  padding: 50px 0 20px;
  position: relative;
  z-index: 2;
}
section.about h2 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 22px;
  color: var(--gold);
  margin: 0 0 14px;
}
section.about p {
  color: var(--text-dim);
  max-width: 66ch;
  font-size: 14px;
}
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 18px;
  margin-top: 22px;
}
.about-card {
  border-left: 3px solid var(--gold);
  padding-left: 14px;
}
.about-card h3 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 15px;
  margin: 0 0 6px;
  color: var(--text);
}
.about-card p {
  font-size: 12.5px;
  margin: 0;
  color: var(--text-dim);
}

footer {
  padding: 24px 0 46px;
  font-size: 12px;
  color: var(--text-faint);
  position: relative;
  z-index: 2;
}
footer a {
  color: var(--text-dim);
  text-decoration: underline dotted;
}
footer .fine {
  margin-top: 8px;
  line-height: 1.7;
}

@media (max-width: 560px) {
  .input-row {
    flex-direction: column;
  }
  .input-row button {
    padding: 12px;
  }
  .score-row {
    gap: 16px;
  }
  .target-char {
    width: 78px;
    height: 78px;
    font-size: 42px;
  }
}

/* index.html */
body.page-home {
  --bg: #0f3630;
  --bg-card: #133f38;
  --gold: #e3b23c;
  --gold-deep: #b8862a;
  --red: #d6444f;
  --red-deep: #a9313a;
  --paper: #f6efe0;
  --paper-line: #e2d7bc;
  --ink: #241f16;
  --ink-soft: #57503f;
  --text: #f3efe4;
  --text-dim: #9fc0b7;
  --text-faint: #6f9089;

  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --serif: "Noto Serif SC", "Songti SC", serif;
  --display: "ZCOOL KuaiLe", var(--sans);
}
.page-home * {
  box-sizing: border-box;
}
.page-home html {
  scroll-behavior: smooth;
}
body.page-home {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
  background-image:
    radial-gradient(circle at 15% 8%, rgba(227, 178, 60, 0.1), transparent 40%),
    radial-gradient(circle at 85% 90%, rgba(214, 68, 79, 0.1), transparent 45%);
}
.page-home a {
  color: inherit;
}
.page-home ::selection {
  background: var(--gold);
  color: var(--ink);
}
.page-home :focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}
.page-home .wrap {
  max-width: 980px;
  margin-inline: auto;
  padding-inline: 22px;
}

.page-home #petals {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 5;
  overflow: hidden;
}
.page-home .petal {
  position: absolute;
  top: -24px;
  font-size: 18px;
  opacity: 0.85;
  animation: fall linear forwards;
  filter: drop-shadow(0 0 3px rgba(0, 0, 0, 0.2));
}
@keyframes fall {
  to {
    transform: translateY(105vh) rotate(340deg);
    opacity: 0.15;
  }
}
@media (prefers-reduced-motion: reduce) {
  .page-home .petal {
    animation: none;
    display: none;
  }
}

.page-home header.site {
  padding: 22px 0 6px;
  position: relative;
  z-index: 2;
}
.page-home .topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
}
.page-home .brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.page-home .brand .name {
  font-family: var(--display);
  font-size: 26px;
  color: var(--gold);
  letter-spacing: 0.03em;
}
.page-home .brand .sub {
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.page-home nav.top-links {
  display: flex;
  gap: 18px;
  font-size: 13px;
  color: var(--text-dim);
}
.page-home nav.top-links a {
  text-decoration: none;
  border-bottom: 1px dotted var(--text-faint);
  padding-bottom: 2px;
}
.page-home nav.top-links a:hover {
  color: var(--gold);
  border-color: var(--gold);
}

.page-home .hero {
  padding: 40px 0 10px;
  text-align: center;
  position: relative;
  z-index: 2;
}
.page-home .hero .eyebrow {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold);
  text-transform: uppercase;
  font-weight: 700;
  margin: 0 0 12px;
}
.page-home .hero h1 {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(30px, 6vw, 52px);
  margin: 0 0 14px;
  color: var(--text);
  line-height: 1.3;
}
.page-home .hero h1 .accent {
  color: var(--red);
}
.page-home .hero p.lede {
  color: var(--text-dim);
  max-width: 54ch;
  margin: 0 auto 8px;
  font-size: 15px;
}

.page-home main {
  position: relative;
  z-index: 2;
  padding: 30px 0 50px;
}

.page-home .card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 10px;
}
.page-home .item-card {
  background: var(--bg-card);
  border-radius: 18px;
  padding: 26px 24px;
  border: 1px solid rgba(227, 178, 60, 0.18);
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition:
    transform 0.12s ease,
    border-color 0.12s ease;
  position: relative;
  overflow: hidden;
}
.page-home .item-card:hover {
  transform: translateY(-3px);
  border-color: var(--gold);
}
.page-home .item-card .emoji {
  font-size: 34px;
  line-height: 1;
}
.page-home .item-card h3 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 20px;
  margin: 0;
  color: var(--text);
}
.page-home .item-card p {
  font-size: 13px;
  color: var(--text-dim);
  margin: 0;
  flex: 1;
}
.page-home .item-card .tag-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.page-home .item-card .tag {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(227, 178, 60, 0.14);
  color: var(--gold);
  border: 1px solid rgba(227, 178, 60, 0.3);
}
.page-home .item-card .cta {
  font-family: var(--display);
  font-size: 14px;
  color: var(--gold);
}
.page-home .item-card .cta::after {
  content: " →";
}

.page-home .shiben-feature {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  margin-top: 54px;
  padding: 34px 0 0;
  border-top: 1px solid rgba(227, 178, 60, 0.3);
}
.page-home .shiben-copy {
  max-width: 680px;
}
.page-home .shiben-kicker {
  margin: 0 0 6px;
  color: var(--red);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
}
.page-home .shiben-feature h2 {
  margin: 0 0 10px;
  color: var(--gold);
  font-family: var(--display);
  font-size: 26px;
  font-weight: 400;
}
.page-home .shiben-feature p:not(.shiben-kicker) {
  margin: 0;
  color: var(--text-dim);
  font-size: 14px;
}
.page-home .shiben-note {
  margin-top: 12px;
  color: var(--text-faint);
  font-size: 11px;
}
.page-home .shiben-link {
  flex: none;
  padding: 12px 22px;
  border: 1px solid var(--gold);
  border-radius: 999px;
  color: var(--gold);
  font-family: var(--display);
  font-size: 15px;
  text-decoration: none;
  transition:
    background 0.15s ease,
    color 0.15s ease;
}
.page-home .shiben-link:hover {
  background: var(--gold);
  color: var(--ink);
}

@media (max-width: 640px) {
  .page-home .shiben-feature {
    align-items: flex-start;
    flex-direction: column;
    gap: 22px;
  }
}

.page-home section.about {
  padding: 30px 0 20px;
  position: relative;
  z-index: 2;
}
.page-home section.about h2 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 20px;
  color: var(--gold);
  margin: 0 0 12px;
}
.page-home section.about p {
  color: var(--text-dim);
  max-width: 66ch;
  font-size: 14px;
}

.page-home footer {
  padding: 24px 0 46px;
  font-size: 12px;
  color: var(--text-faint);
  position: relative;
  z-index: 2;
}
.page-home footer a {
  color: var(--text-dim);
  text-decoration: underline dotted;
}

/* sudoku.html */
body.page-sudoku {
  --bg: #0f3630;
  --bg-card: #133f38;
  --gold: #e3b23c;
  --gold-deep: #b8862a;
  --red: #d6444f;
  --red-deep: #a9313a;
  --paper: #f6efe0;
  --paper-line: #e2d7bc;
  --ink: #241f16;
  --ink-soft: #57503f;
  --text: #f3efe4;
  --text-dim: #9fc0b7;
  --text-faint: #6f9089;

  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --serif: "Noto Serif SC", "Songti SC", serif;
  --display: "ZCOOL KuaiLe", var(--sans);
}
.page-sudoku * {
  box-sizing: border-box;
}
.page-sudoku html {
  scroll-behavior: smooth;
}
body.page-sudoku {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
  background-image:
    radial-gradient(circle at 15% 8%, rgba(227, 178, 60, 0.1), transparent 40%),
    radial-gradient(circle at 85% 90%, rgba(214, 68, 79, 0.1), transparent 45%);
}
.page-sudoku a {
  color: inherit;
}
.page-sudoku ::selection {
  background: var(--gold);
  color: var(--ink);
}
.page-sudoku :focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}
.page-sudoku .wrap {
  max-width: 980px;
  margin-inline: auto;
  padding-inline: 22px;
}

.page-sudoku /* petals */
  #petals {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 5;
  overflow: hidden;
}
.page-sudoku .petal {
  position: absolute;
  top: -24px;
  font-size: 18px;
  opacity: 0.85;
  animation: fall linear forwards;
  filter: drop-shadow(0 0 3px rgba(0, 0, 0, 0.2));
}
@keyframes fall {
  to {
    transform: translateY(105vh) rotate(340deg);
    opacity: 0.15;
  }
}
@media (prefers-reduced-motion: reduce) {
  .page-sudoku .petal {
    animation: none;
    display: none;
  }
}

.page-sudoku /* header */
  header.site {
  padding: 22px 0 6px;
  position: relative;
  z-index: 2;
}
.page-sudoku .topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
}
.page-sudoku .brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.page-sudoku .brand .name {
  font-family: var(--display);
  font-size: 26px;
  color: var(--gold);
  letter-spacing: 0.03em;
}
.page-sudoku .brand .sub {
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.page-sudoku nav.top-links {
  display: flex;
  gap: 18px;
  font-size: 13px;
  color: var(--text-dim);
}
.page-sudoku nav.top-links a {
  text-decoration: none;
  border-bottom: 1px dotted var(--text-faint);
  padding-bottom: 2px;
}
.page-sudoku nav.top-links a:hover {
  color: var(--gold);
  border-color: var(--gold);
}

.page-sudoku /* hero */
  .hero {
  padding: 30px 0 20px;
  text-align: center;
  position: relative;
  z-index: 2;
}
.page-sudoku .hero .eyebrow {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold);
  text-transform: uppercase;
  font-weight: 700;
  margin: 0 0 12px;
}
.page-sudoku .hero h1 {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(30px, 6vw, 50px);
  margin: 0 0 14px;
  color: var(--text);
  line-height: 1.3;
}
.page-sudoku .hero h1 .accent {
  color: var(--red);
}
.page-sudoku .hero p.lede {
  color: var(--text-dim);
  max-width: 52ch;
  margin: 0 auto 8px;
  font-size: 15px;
}

.page-sudoku main {
  position: relative;
  z-index: 2;
  padding-bottom: 60px;
}

.page-sudoku .panel {
  background: var(--bg-card);
  border-radius: 18px;
  padding: 30px 26px;
  margin-top: 18px;
  border: 1px solid rgba(227, 178, 60, 0.18);
}
.page-sudoku .panel-head {
  text-align: center;
  margin-bottom: 22px;
}
.page-sudoku .panel-head h2 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 22px;
  color: var(--text);
  margin: 0 0 6px;
}
.page-sudoku .panel-head p {
  font-size: 13px;
  color: var(--text-dim);
  margin: 0;
}

.page-sudoku .score-row {
  display: flex;
  justify-content: center;
  gap: 26px;
  margin-bottom: 20px;
  font-size: 13px;
  color: var(--text-dim);
}
.page-sudoku .score-row b {
  font-family: var(--display);
  font-size: 20px;
  color: var(--gold);
  display: block;
}

.page-sudoku .helper-row {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-top: 14px;
  flex-wrap: wrap;
}
.page-sudoku .ghost-btn {
  font-size: 12.5px;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid rgba(159, 192, 183, 0.35);
  padding: 7px 14px;
  border-radius: 999px;
  cursor: pointer;
}
.page-sudoku .ghost-btn:hover {
  color: var(--text);
  border-color: var(--gold);
}

.page-sudoku .feedback {
  margin-top: 22px;
  text-align: center;
  min-height: 30px;
}
.page-sudoku .feedback.ok {
  color: #a8e6b8;
}
.page-sudoku .feedback.bad {
  color: #f0a3a3;
}

.page-sudoku /* sudoku */
  .sd-theme-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 10px;
}
.page-sudoku .sd-theme-btn {
  font-family: var(--serif);
  font-size: 13px;
  padding: 7px 14px;
  border-radius: 999px;
  background: rgba(227, 178, 60, 0.12);
  color: var(--gold);
  border: 1px solid rgba(227, 178, 60, 0.3);
  cursor: pointer;
}
.page-sudoku .sd-theme-btn.active {
  background: var(--gold);
  color: var(--ink);
}
.page-sudoku .sd-custom-row {
  display: flex;
  gap: 8px;
  justify-content: center;
  max-width: 340px;
  margin: 0 auto 18px;
}
.page-sudoku .sd-custom-row input {
  flex: 1;
  min-width: 0;
  font-family: var(--serif);
  font-size: 15px;
  padding: 8px 12px;
  border-radius: 10px;
  border: none;
  background: var(--paper);
  color: var(--ink);
}
.page-sudoku .sd-custom-row button {
  font-size: 12.5px;
  padding: 0 14px;
  border-radius: 10px;
  background: rgba(227, 178, 60, 0.18);
  color: var(--gold);
  border: 1px solid rgba(227, 178, 60, 0.3);
  cursor: pointer;
  white-space: nowrap;
}
.page-sudoku .sd-diff-row {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 20px;
}
.page-sudoku .sd-diff-btn {
  font-size: 12.5px;
  padding: 6px 16px;
  border-radius: 999px;
  background: transparent;
  border: 1px solid rgba(159, 192, 183, 0.35);
  color: var(--text-dim);
  cursor: pointer;
}
.page-sudoku .sd-diff-btn.active {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
}

.page-sudoku .sd-board {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  max-width: 396px;
  margin: 0 auto;
  background: var(--ink);
  gap: 1px;
  border: 3px solid var(--ink);
  border-radius: 8px;
  overflow: hidden;
}
.page-sudoku .sd-cell {
  aspect-ratio: 1;
  background: var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-size: 20px;
  color: var(--ink);
  cursor: pointer;
  position: relative;
  user-select: none;
}
.page-sudoku .sd-cell.given {
  color: var(--ink);
  font-weight: 900;
  cursor: default;
  background: #efe4c9;
}
.page-sudoku .sd-cell.selected {
  background: rgba(227, 178, 60, 0.55);
}
.page-sudoku .sd-cell.peer {
  background: #d9e8e2;
  color: #1a1610;
}
.page-sudoku .sd-cell.error {
  color: var(--red);
  background: rgba(214, 68, 79, 0.22);
}
.page-sudoku .sd-cell.hinted {
  animation: hintpop 0.5s ease;
}
@keyframes hintpop {
  0% {
    transform: scale(1.3);
  }
  100% {
    transform: scale(1);
  }
}
.page-sudoku .sd-cell:nth-child(3n) {
  border-right: 2.5px solid var(--ink);
}
.page-sudoku .sd-cell:nth-child(9n) {
  border-right: none;
}
.page-sudoku .sd-row-thick {
  border-bottom: 2.5px solid var(--ink);
}

.page-sudoku .sd-palette {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin: 20px 0 4px;
  flex-wrap: wrap;
}
.page-sudoku .sd-pal-btn {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 19px;
  border: none;
  cursor: pointer;
  font-weight: 700;
}
.page-sudoku .sd-pal-btn:hover {
  background: var(--gold);
}

@media (max-width: 520px) {
  .page-sudoku .sd-board {
    max-width: 100%;
  }
  .page-sudoku .sd-cell {
    font-size: 16px;
  }
}

.page-sudoku section.about {
  padding: 0 0 30px;
  position: relative;
  z-index: 2;
}
.page-sudoku section.about h2 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 22px;
  color: var(--gold);
  margin: 0 0 14px;
}
.page-sudoku section.about p {
  color: var(--text-dim);
  max-width: 66ch;
  font-size: 14px;
}
.page-sudoku .about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 18px;
  margin-top: 22px;
}
.page-sudoku .about-card {
  border-left: 3px solid var(--gold);
  padding-left: 14px;
}
.page-sudoku .about-card h3 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 15px;
  margin: 0 0 6px;
  color: var(--text);
}
.page-sudoku .about-card p {
  font-size: 12.5px;
  margin: 0;
  color: var(--text-dim);
}

.page-sudoku footer {
  padding: 24px 0 46px;
  font-size: 12px;
  color: var(--text-faint);
  position: relative;
  z-index: 2;
}
.page-sudoku footer a {
  color: var(--text-dim);
  text-decoration: underline dotted;
}
.page-sudoku footer .fine {
  margin-top: 8px;
  line-height: 1.7;
}

/* strands.html */
body.page-strands {
  --bg: #0f3630;
  --bg-card: #133f38;
  --gold: #e3b23c;
  --gold-deep: #b8862a;
  --red: #d6444f;
  --red-deep: #a9313a;
  --blue: #5b8dbe;
  --blue-deep: #3f6a94;
  --paper: #f6efe0;
  --paper-line: #e2d7bc;
  --ink: #241f16;
  --ink-soft: #57503f;
  --text: #f3efe4;
  --text-dim: #9fc0b7;
  --text-faint: #6f9089;

  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --serif: "Noto Serif SC", "Songti SC", serif;
  --display: "ZCOOL KuaiLe", var(--sans);
}
.page-strands * {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}
.page-strands html {
  scroll-behavior: smooth;
}
body.page-strands {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
  background-image:
    radial-gradient(circle at 15% 8%, rgba(227, 178, 60, 0.1), transparent 40%),
    radial-gradient(circle at 85% 90%, rgba(214, 68, 79, 0.1), transparent 45%);
}
.page-strands a {
  color: inherit;
}
.page-strands ::selection {
  background: var(--gold);
  color: var(--ink);
}
.page-strands :focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}
.page-strands .wrap {
  max-width: 980px;
  margin-inline: auto;
  padding-inline: 22px;
}
.page-strands [hidden] {
  display: none !important;
}

.page-strands #petals {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 5;
  overflow: hidden;
}
.page-strands .petal {
  position: absolute;
  top: -24px;
  font-size: 18px;
  opacity: 0.85;
  animation: fall linear forwards;
  filter: drop-shadow(0 0 3px rgba(0, 0, 0, 0.2));
}
@keyframes fall {
  to {
    transform: translateY(105vh) rotate(340deg);
    opacity: 0.15;
  }
}
@media (prefers-reduced-motion: reduce) {
  .page-strands .petal {
    animation: none;
    display: none;
  }
}

.page-strands header.site {
  padding: 22px 0 6px;
  position: relative;
  z-index: 2;
}
.page-strands .topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
}
.page-strands .brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.page-strands .brand .name {
  font-family: var(--display);
  font-size: 26px;
  color: var(--gold);
  letter-spacing: 0.03em;
}
.page-strands .brand .sub {
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.page-strands nav.top-links {
  display: flex;
  gap: 18px;
  font-size: 13px;
  color: var(--text-dim);
}
.page-strands nav.top-links a {
  text-decoration: none;
  border-bottom: 1px dotted var(--text-faint);
  padding-bottom: 2px;
}
.page-strands nav.top-links a:hover {
  color: var(--gold);
  border-color: var(--gold);
}

.page-strands .hero {
  padding: 26px 0 14px;
  text-align: center;
  position: relative;
  z-index: 2;
}
.page-strands .hero .eyebrow {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold);
  text-transform: uppercase;
  font-weight: 700;
  margin: 0 0 12px;
}
.page-strands .hero h1 {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(26px, 6vw, 42px);
  margin: 0 0 12px;
  color: var(--text);
  line-height: 1.3;
}
.page-strands .hero h1 .accent {
  color: var(--red);
}
.page-strands .hero p.lede {
  color: var(--text-dim);
  max-width: 52ch;
  margin: 0 auto 8px;
  font-size: 14.5px;
}

.page-strands main {
  position: relative;
  z-index: 2;
  padding-bottom: 60px;
}

.page-strands .level-tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin: 20px 0 8px;
}
.page-strands .level-tab {
  font-family: var(--display);
  font-size: 15px;
  padding: 9px 20px;
  background: var(--bg-card);
  border: 2px solid transparent;
  color: var(--text-dim);
  border-radius: 999px;
  cursor: pointer;
}
.page-strands .level-tab.active {
  background: var(--gold);
  color: var(--ink);
}
.page-strands .level-tab .done-mark {
  margin-left: 4px;
}

.page-strands .panel {
  background: var(--bg-card);
  border-radius: 18px;
  padding: 26px 20px 30px;
  margin-top: 14px;
  border: 1px solid rgba(227, 178, 60, 0.18);
}

.page-strands .status-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
  font-size: 12.5px;
  color: var(--text-dim);
}
.page-strands .status-row b {
  color: var(--gold);
}

.page-strands .compose-bar {
  text-align: center;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text);
  margin-bottom: 14px;
}
.page-strands .compose-bar .ph {
  color: var(--text-faint);
  font-size: 13px;
  font-family: var(--sans);
  font-weight: 400;
  letter-spacing: normal;
}

.page-strands .board {
  display: grid;
  gap: 6px;
  max-width: 380px;
  margin: 0 auto;
  user-select: none;
  touch-action: none;
}
.page-strands .cell {
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--paper);
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 20px;
  cursor: pointer;
  position: relative;
  transition:
    background 0.1s ease,
    color 0.1s ease,
    transform 0.08s ease;
}
.page-strands .cell.active {
  background: var(--red);
  color: #fff;
  transform: scale(1.08);
}
.page-strands .cell.found-word {
  background: var(--blue);
  color: #fff;
}
.page-strands .cell.found-span {
  background: var(--gold);
  color: var(--ink);
}
.page-strands .cell.wrong {
  animation: shake 0.35s ease;
}
@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-4px);
  }
  75% {
    transform: translateX(4px);
  }
}

.page-strands .helper-row {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-top: 20px;
  flex-wrap: wrap;
}
.page-strands .ghost-btn {
  font-size: 12.5px;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid rgba(159, 192, 183, 0.35);
  padding: 7px 14px;
  border-radius: 999px;
  cursor: pointer;
}
.page-strands .ghost-btn:hover {
  color: var(--text);
  border-color: var(--gold);
}

.page-strands .feedback {
  margin-top: 14px;
  text-align: center;
  min-height: 24px;
  font-size: 13.5px;
}
.page-strands .feedback.ok {
  color: #a8e6b8;
}
.page-strands .feedback.bad {
  color: #f0a3a3;
}
.page-strands .feedback.win {
  color: var(--gold);
  font-family: var(--display);
  font-size: 16px;
}

.page-strands .found-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-top: 18px;
}
.page-strands .found-chip {
  font-family: var(--serif);
  font-size: 13px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(91, 141, 190, 0.18);
  color: #bcd6ec;
  border: 1px solid rgba(91, 141, 190, 0.35);
}
.page-strands .found-chip.spangram {
  background: rgba(227, 178, 60, 0.2);
  color: var(--gold);
  border-color: rgba(227, 178, 60, 0.4);
  font-weight: 700;
}

.page-strands section.about {
  padding: 0 0 30px;
  position: relative;
  z-index: 2;
}
.page-strands section.about h2 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 20px;
  color: var(--gold);
  margin: 0 0 12px;
}
.page-strands section.about p {
  color: var(--text-dim);
  max-width: 66ch;
  font-size: 13.5px;
}
.page-strands .about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 20px;
}
.page-strands .about-card {
  border-left: 3px solid var(--gold);
  padding-left: 14px;
}
.page-strands .about-card h3 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 14px;
  margin: 0 0 6px;
  color: var(--text);
}
.page-strands .about-card p {
  font-size: 12px;
  margin: 0;
  color: var(--text-dim);
}

.page-strands footer {
  padding: 24px 0 46px;
  font-size: 12px;
  color: var(--text-faint);
  position: relative;
  z-index: 2;
}

/* Preserve the shared page gutter when section-specific vertical padding is set. */
.hero.wrap,
section.about.wrap {
  padding-inline: 22px;
}

.page-poetry section.about > p,
.page-sudoku section.about > p,
.page-strands section.about > p {
  max-width: none;
}

footer.wrap {
  padding-top: 36px;
  padding-inline: 22px;
  border-top: 1px solid rgba(159, 192, 183, 0.18);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
}

/* Shared site identity and navigation. */
.brand,
.page-home .brand,
.page-sudoku .brand,
.page-strands .brand {
  display: block;
  flex: 0 0 auto;
  text-decoration: none;
}
.brand-logo {
  display: block;
  width: 180px;
  height: auto;
  margin: -25px -36px -25px -30px;
}
nav.top-links,
.page-home nav.top-links,
.page-sudoku nav.top-links,
.page-strands nav.top-links {
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  row-gap: 8px;
}
nav.top-links a[aria-current="page"] {
  color: var(--gold);
  border-color: var(--gold);
}
nav.top-links .related-project {
  position: relative;
  margin-left: 4px;
  padding-left: 20px;
  color: var(--gold);
}
nav.top-links .related-project::before {
  position: absolute;
  top: 1px;
  bottom: 3px;
  left: 0;
  width: 1px;
  background: rgba(159, 192, 183, 0.28);
  content: "";
}
.mobile-menu-toggle {
  display: none;
}
.about-page-content {
  padding-top: 24px;
}
.page-about {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
}
.page-about .about-page-content {
  width: 100%;
  flex: 1 0 auto;
}
.page-about footer {
  width: 100%;
  flex: 0 0 auto;
}
.page-about footer.wrap {
  padding-block: 36px;
}
.about-intro {
  max-width: none;
}
.about-intro h2 {
  margin: 0 0 14px;
  color: var(--gold);
  font-family: var(--display);
  font-size: 24px;
  font-weight: 400;
}
.about-intro p {
  margin: 0 0 14px;
  color: var(--text-dim);
  font-size: 15px;
}
.about-intro .build-info {
  margin-bottom: 0;
  font-size: 14px;
}
.about-page-content .about-grid {
  margin-top: 34px;
}
.about-page-content .about-card p {
  color: var(--text-dim);
}
.footer-brand {
  color: var(--text-dim);
  font-weight: 600;
  line-height: 1.7;
}
.footer-made {
  white-space: nowrap;
}

@media (max-width: 560px) {
  header.site,
  .page-home header.site,
  .page-sudoku header.site,
  .page-strands header.site {
    padding: 10px 0 0;
  }
  .page-about .about-page-content {
    padding-bottom: 36px;
  }
  .footer-made {
    white-space: normal;
  }
  .topbar,
  .page-home .topbar,
  .page-sudoku .topbar,
  .page-strands .topbar {
    align-items: center;
    flex-flow: row wrap;
    gap: 0;
    min-height: 56px;
    padding-bottom: 10px;
    text-align: left;
  }
  .brand,
  .page-home .brand,
  .page-sudoku .brand,
  .page-strands .brand {
    width: auto;
  }
  .brand-logo {
    width: 140px;
    margin: -19px -28px -19px -23px;
  }
  .mobile-menu-toggle {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    min-height: 44px;
    margin-left: auto;
    padding: 8px 10px;
    border: 1px solid rgba(159, 192, 183, 0.28);
    border-radius: 8px;
    background: rgba(13, 75, 65, 0.35);
    color: var(--text-dim);
    font: 600 14px/1 var(--sans);
    letter-spacing: 0.08em;
    cursor: pointer;
  }
  .mobile-menu-toggle:hover,
  .mobile-menu-toggle:focus-visible,
  .mobile-menu-toggle[aria-expanded="true"] {
    border-color: var(--gold);
    color: var(--gold);
  }
  .menu-icon {
    display: grid;
    gap: 3px;
    width: 17px;
  }
  .menu-icon i {
    display: block;
    height: 1.5px;
    border-radius: 999px;
    background: currentColor;
  }
  nav.top-links,
  .page-home nav.top-links,
  .page-sudoku nav.top-links,
  .page-strands nav.top-links {
    display: none;
    align-items: stretch;
    flex-direction: column;
    justify-content: flex-start;
    gap: 0;
    width: 100%;
    margin-top: 10px;
    padding: 6px 0;
    border-top: 1px solid rgba(159, 192, 183, 0.18);
    text-align: left;
  }
  nav.top-links.is-open,
  .page-home nav.top-links.is-open,
  .page-sudoku nav.top-links.is-open,
  .page-strands nav.top-links.is-open {
    display: flex;
  }
  nav.top-links a,
  .page-home nav.top-links a,
  .page-sudoku nav.top-links a,
  .page-strands nav.top-links a {
    min-height: 44px;
    padding: 13px 4px 11px;
    border-bottom-color: rgba(159, 192, 183, 0.18);
  }
  nav.top-links .related-project,
  .page-home nav.top-links .related-project,
  .page-sudoku nav.top-links .related-project,
  .page-strands nav.top-links .related-project {
    margin: 6px 0 0;
    padding-left: 4px;
    border-top: 1px solid rgba(159, 192, 183, 0.28);
  }
  nav.top-links .related-project::before {
    display: none;
  }
  footer.wrap {
    align-items: center;
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
}