:root {
  color-scheme: dark;
  --bg: #07110d;
  --bg-soft: #0d1913;
  --panel: rgba(16, 29, 22, 0.78);
  --panel-solid: #101d17;
  --panel-bright: rgba(232, 226, 207, 0.1);
  --line: rgba(221, 213, 185, 0.18);
  --line-strong: rgba(203, 184, 118, 0.46);
  --text: #f7f2df;
  --muted: #bbb8a8;
  --soft: #858c80;
  --green: #69d8af;
  --mint: #b5f3ce;
  --gold: #d7bd73;
  --rose: #d97984;
  --ink: #07110d;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.38);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    linear-gradient(180deg, rgba(105, 216, 175, 0.08), transparent 460px),
    var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(232, 226, 207, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232, 226, 207, 0.035) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.82), transparent 70%);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
}

img {
  max-width: 100%;
  height: auto;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  font-size: clamp(56px, 10vw, 128px);
  line-height: 0.88;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(30px, 4.8vw, 56px);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  font-size: 20px;
  line-height: 1.25;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 14px clamp(16px, 4vw, 52px);
  border-bottom: 1px solid rgba(232, 226, 207, 0.1);
  background: rgba(7, 17, 13, 0.78);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 12px;
}

.brand-avatar,
.login-avatar {
  flex: none;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: #0c1712;
  box-shadow: 0 0 0 4px rgba(105, 216, 175, 0.08);
}

.brand span {
  display: grid;
  min-width: 0;
}

.brand strong {
  color: var(--text);
  font-size: 17px;
  line-height: 1.15;
}

.brand small {
  color: var(--soft);
  font-size: 12px;
  line-height: 1.2;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 18px;
  color: var(--muted);
  font-size: 14px;
}

.top-nav a {
  padding: 6px 0;
}

.top-nav a:hover,
.site-footer a:hover {
  color: var(--mint);
}

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
  align-items: end;
  gap: clamp(24px, 4vw, 52px);
  padding: 126px clamp(18px, 5vw, 72px) 44px;
  overflow: hidden;
}

.hero-backdrop {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(7, 17, 13, 0.98) 0%, rgba(7, 17, 13, 0.88) 38%, rgba(7, 17, 13, 0.28) 72%),
    linear-gradient(180deg, rgba(7, 17, 13, 0.14), rgba(7, 17, 13, 0.98)),
    url("/static/assets/mutsumi-hero.webp") center / cover no-repeat;
}

.hero-content {
  max-width: 760px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.mutsumi-line {
  display: inline-flex;
  margin: 20px 0 0;
  padding: 8px 12px;
  border-left: 3px solid var(--gold);
  background: rgba(215, 189, 115, 0.1);
  color: #fff4c8;
  font-size: clamp(18px, 2.4vw, 25px);
  font-weight: 800;
}

.hero-tagline {
  max-width: 680px;
  margin: 24px 0 0;
  color: #fff9df;
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.25;
  font-weight: 800;
}

.hero-copy {
  max-width: 640px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.hero-actions,
.editor-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: rgba(232, 226, 207, 0.06);
  color: var(--text);
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
  border-color: rgba(245, 238, 204, 0.42);
  background: rgba(232, 226, 207, 0.1);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.38;
  transform: none;
}

.button.primary {
  border-color: transparent;
  background: var(--gold);
  color: var(--ink);
  font-weight: 900;
}

.button.ghost {
  background: rgba(7, 17, 13, 0.5);
}

.button.quiet {
  min-height: 38px;
  background: transparent;
  color: var(--muted);
}

.hero-card,
.stat-card,
.feature-card,
.post-card,
.command-row,
.faq-item,
.visual-card,
.contact-band,
.admin-panel,
.editor-topbar,
.editor-nav,
.edit-item {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.hero-card {
  display: grid;
  gap: 16px;
  padding: 20px;
  border-color: rgba(215, 189, 115, 0.32);
}

.hero-card > img {
  width: min(180px, 62vw);
  justify-self: center;
  border-radius: 18px;
}

.hero-card > div:first-of-type {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--mint);
  font-weight: 800;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--green);
  box-shadow: 0 0 0 6px rgba(105, 216, 175, 0.12);
}

.hero-stats {
  display: grid;
  gap: 10px;
}

.stat-card {
  min-height: 82px;
  padding: 16px;
  box-shadow: none;
}

.stat-card strong {
  display: block;
  color: var(--gold);
  font-size: 24px;
  line-height: 1.12;
}

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

.section {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
  padding: 84px 0;
}

.intro-band {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.2fr);
  gap: 42px;
  align-items: end;
  border-bottom: 1px solid var(--line);
}

.intro-band p:last-child,
.section-heading p {
  color: var(--muted);
}

.intro-band p:last-child {
  margin: 0;
  font-size: 20px;
}

.section-heading {
  margin-bottom: 28px;
}

.section-heading p:last-child {
  margin: 14px 0 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.feature-card {
  min-height: 220px;
  padding: 20px;
}

.card-index {
  display: inline-flex;
  min-width: 34px;
  min-height: 28px;
  align-items: center;
  justify-content: center;
  margin-bottom: 34px;
  border: 1px solid rgba(105, 216, 175, 0.28);
  color: var(--mint);
  font-size: 12px;
  font-weight: 900;
}

.feature-card p,
.post-card p,
.command-row p,
.faq-item p {
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 1fr);
  gap: 36px;
}

.sticky-heading {
  position: sticky;
  top: 92px;
  align-self: start;
}

.command-list,
.faq-list,
.post-list {
  display: grid;
  gap: 12px;
}

.command-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(120px, 240px);
  align-items: center;
  gap: 18px;
  min-height: 106px;
  padding: 18px;
}

.command-row code {
  padding: 10px 12px;
  border: 1px solid rgba(215, 189, 115, 0.3);
  background: rgba(215, 189, 115, 0.1);
  color: #ffe8a7;
  white-space: normal;
  overflow-wrap: anywhere;
}

.blog-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(0, 1.1fr);
  gap: 16px;
  align-items: start;
}

.visual-card {
  overflow: hidden;
}

.visual-card img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.visual-card div {
  padding: 18px;
}

.post-card {
  min-height: 172px;
  padding: 20px;
}

.post-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  color: var(--soft);
  font-size: 13px;
}

.faq-item {
  padding: 0 18px;
}

.faq-item summary {
  min-height: 62px;
  display: flex;
  align-items: center;
  cursor: pointer;
  font-weight: 900;
}

.faq-item p {
  margin: 0;
  padding: 0 0 18px;
}

.contact-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 360px);
  gap: 32px;
  align-items: end;
  width: min(1120px, calc(100% - 36px));
  margin: 20px auto 80px;
  padding: 30px;
  border-color: rgba(105, 216, 175, 0.28);
  background:
    linear-gradient(135deg, rgba(105, 216, 175, 0.14), rgba(215, 189, 115, 0.08)),
    var(--panel);
}

.contact-band p {
  color: var(--muted);
}

.contact-note {
  margin: 0 0 14px;
  padding: 16px;
  border-left: 3px solid var(--green);
  background: rgba(232, 226, 207, 0.05);
}

.link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.link-list a {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  border: 1px solid var(--line);
  color: var(--mint);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding: 24px clamp(18px, 4vw, 52px);
  border-top: 1px solid var(--line);
  color: var(--soft);
  font-size: 14px;
}

.tool-page {
  background:
    linear-gradient(180deg, rgba(105, 216, 175, 0.12), transparent 440px),
    var(--bg);
}

.tool-shell {
  width: min(1220px, calc(100% - 36px));
  margin: 0 auto;
  padding: 124px 0 80px;
}

.tool-hero {
  display: grid;
  gap: 18px;
  min-height: 360px;
  align-content: end;
  padding: clamp(28px, 5vw, 56px);
  border: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(7, 17, 13, 0.96), rgba(7, 17, 13, 0.68)),
    url("/static/assets/mutsumi-console.webp") right center / min(52vw, 720px) auto no-repeat,
    var(--panel-solid);
  box-shadow: var(--shadow);
}

.tool-hero.compact {
  min-height: 300px;
  background:
    linear-gradient(90deg, rgba(7, 17, 13, 0.96), rgba(7, 17, 13, 0.76)),
    url("/static/assets/mutsumi-sticker.webp") right 32px center / 220px auto no-repeat,
    var(--panel-solid);
}

.tool-hero h1 {
  max-width: 760px;
  font-size: clamp(42px, 8vw, 92px);
}

.tool-hero p {
  max-width: 780px;
  margin: 0;
  color: var(--muted);
  font-size: 18px;
}

.route-search {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  max-width: 680px;
}

.route-search input,
.route-index-head input {
  height: 48px;
  background: rgba(232, 226, 207, 0.09);
}

.tool-hint {
  color: var(--gold) !important;
  font-size: 14px !important;
}

.route-dashboard {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

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

.route-popular {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 16px;
  align-items: stretch;
  border: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(105, 216, 175, 0.1), rgba(5, 10, 7, 0.62)),
    var(--panel);
  box-shadow: var(--shadow);
  padding: 18px;
}

.route-popular h2 {
  font-size: 28px;
}

.popular-route-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.popular-route-card {
  display: grid;
  align-content: space-between;
  min-height: 118px;
  border: 1px solid rgba(232, 226, 207, 0.12);
  border-top: 3px solid rgba(215, 189, 115, 0.72);
  background: rgba(5, 10, 7, 0.54);
  padding: 14px;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.popular-route-card:hover,
.popular-route-card:focus-visible {
  border-color: rgba(105, 216, 175, 0.64);
  background: rgba(105, 216, 175, 0.1);
  outline: none;
}

.popular-route-card strong {
  color: var(--cream);
  font-size: 18px;
}

.popular-route-card span {
  color: var(--mint);
  font-size: 13px;
}

.popular-route-card small {
  color: var(--muted);
  line-height: 1.45;
}

.route-layout {
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.route-index,
.route-result,
.guide-card {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.route-index {
  position: sticky;
  top: 92px;
  max-height: calc(100vh - 116px);
  overflow: auto;
  padding: 16px;
}

.route-index-head {
  display: grid;
  gap: 12px;
  margin-bottom: 16px;
}

.route-index-head h2,
.route-result h2,
.guide-card h2 {
  font-size: 28px;
}

.route-control-stack {
  display: grid;
  gap: 10px;
}

.route-control-stack select {
  width: 100%;
  min-height: 48px;
  border: 1px solid rgba(232, 226, 207, 0.16);
  background: rgba(232, 226, 207, 0.08);
  color: var(--soft);
  padding: 0 14px;
  outline: none;
  font: inherit;
}

.route-list {
  display: grid;
  gap: 10px;
}

.route-item {
  display: grid;
  gap: 8px;
  min-height: 92px;
  border: 1px solid rgba(232, 226, 207, 0.1);
  border-left: 3px solid rgba(105, 216, 175, 0.26);
  background: linear-gradient(90deg, rgba(105, 216, 175, 0.08), rgba(5, 10, 7, 0.5));
  color: var(--soft);
  padding: 14px;
  text-align: left;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.route-item:hover,
.route-item.active {
  border-color: rgba(105, 216, 175, 0.55);
  border-left-color: var(--gold);
  background: linear-gradient(90deg, rgba(215, 189, 115, 0.12), rgba(105, 216, 175, 0.08));
}

.route-item:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 2px;
}

.route-item-main {
  display: grid;
  gap: 4px;
}

.route-item-main strong {
  color: var(--cream);
  font-size: 17px;
}

.route-item-main small,
.route-item-desc,
.empty-state {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.route-item-desc {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.route-result {
  min-height: 580px;
  padding: clamp(20px, 3vw, 32px);
}

.route-result > p {
  color: var(--muted);
}

.route-alias-panel {
  margin: 18px 0 0;
  border-left: 3px solid var(--mint);
  background: rgba(105, 216, 175, 0.08);
  color: var(--soft);
  padding: 12px 14px;
  line-height: 1.7;
}

.route-images {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}

.route-images a {
  display: block;
  overflow: auto;
  border: 1px solid var(--line);
  background: #050806;
}

.route-images img {
  display: block;
  width: 100%;
  min-width: min(960px, 100%);
  height: auto;
}

.guide-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  gap: 16px;
  margin-top: 18px;
}

.guide-card {
  padding: clamp(20px, 3vw, 30px);
}

.primary-guide {
  grid-row: span 2;
}

.guide-card p,
.guide-card li {
  color: var(--muted);
}

.guide-card code {
  padding: 2px 6px;
  border: 1px solid rgba(215, 189, 115, 0.3);
  background: rgba(215, 189, 115, 0.1);
  color: #ffe8a7;
}

.kuro-hero {
  background:
    linear-gradient(90deg, rgba(7, 17, 13, 0.96), rgba(7, 17, 13, 0.7)),
    url("/static/assets/mutsumi-console.webp") right center / min(46vw, 620px) auto no-repeat,
    var(--panel-solid);
}

.kuro-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 16px;
  margin-top: 18px;
}

.kuro-stage,
.kuro-side {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.kuro-stage {
  padding: clamp(22px, 4vw, 38px);
}

.kuro-stage h2,
.kuro-side h2 {
  font-size: 30px;
}

.kuro-steps {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.kuro-step {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 16px;
  border-top: 1px solid rgba(232, 226, 207, 0.12);
  padding-top: 18px;
}

.kuro-step-index {
  color: var(--gold);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 22px;
}

.kuro-step h3 {
  margin-bottom: 8px;
  color: var(--cream);
  font-size: 22px;
}

.kuro-step p,
.kuro-side p {
  color: var(--muted);
}

.kuro-step img {
  display: block;
  max-width: 100%;
  max-height: 420px;
  margin-top: 14px;
  border: 1px solid var(--line);
  object-fit: contain;
  background: #050806;
}

.kuro-side {
  align-self: start;
  position: sticky;
  top: 92px;
  padding: 24px;
}

.kuro-side img {
  display: block;
  width: min(220px, 100%);
  height: auto;
  margin: 0 auto 16px;
}

.admin-page {
  min-height: 100vh;
  background:
    linear-gradient(130deg, rgba(105, 216, 175, 0.12), transparent 44%),
    linear-gradient(330deg, rgba(215, 189, 115, 0.1), transparent 42%),
    var(--bg);
}

.admin-shell {
  width: min(1180px, calc(100% - 28px));
  margin: 0 auto;
  padding: 44px 0;
}

.admin-panel {
  width: min(760px, 100%);
  margin: 7vh auto 0;
  padding: 30px;
}

.login-avatar {
  display: block;
  margin-bottom: 18px;
}

.admin-panel h1,
.editor-topbar h1 {
  margin: 0;
  font-size: 34px;
  line-height: 1.1;
}

.admin-panel p,
.editor-topbar p {
  color: var(--muted);
}

.login-form,
.form-grid {
  display: grid;
  gap: 16px;
}

.field,
.login-form label,
.json-editor-label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: rgba(232, 226, 207, 0.07);
  color: var(--text);
  outline: none;
}

input {
  height: 44px;
  padding: 0 12px;
}

textarea {
  min-height: 100px;
  resize: vertical;
  padding: 12px;
}

input:focus,
textarea:focus {
  border-color: rgba(105, 216, 175, 0.78);
}

.editor-topbar {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 20px;
  padding: 22px;
}

.editor-actions {
  justify-content: flex-end;
  margin-top: 0;
}

.editor-layout {
  display: grid;
  grid-template-columns: 178px minmax(0, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.editor-nav {
  display: grid;
  align-content: start;
  gap: 6px;
  padding: 10px;
}

.editor-nav button {
  min-height: 40px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  text-align: left;
  padding: 0 12px;
  cursor: pointer;
}

.editor-nav button.active {
  background: var(--gold);
  color: var(--ink);
  font-weight: 900;
}

.editor-main {
  min-width: 0;
}

.editor-tab {
  display: grid;
  gap: 16px;
}

.edit-list {
  display: grid;
  gap: 14px;
}

.edit-item {
  display: grid;
  gap: 14px;
  padding: 18px;
}

.edit-item-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.item-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.add-button {
  width: 100%;
}

#json-editor {
  min-height: 68vh;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  line-height: 1.5;
}

.form-message {
  min-height: 24px;
  margin: 12px 0 0;
  color: var(--gold);
}

.form-message.error {
  color: #ff9c9f;
}

.form-message.success {
  color: var(--mint);
}

.upload-panel {
  display: grid;
  gap: 18px;
}

.upload-panel h2 {
  font-size: 30px;
}

.upload-panel p {
  color: var(--muted);
}

.upload-result {
  display: grid;
  gap: 12px;
  color: var(--gold);
}

.upload-result input {
  width: 100%;
  min-height: 44px;
  background: rgba(232, 226, 207, 0.08);
}

.upload-result img {
  max-width: min(420px, 100%);
  max-height: 280px;
  border: 1px solid var(--line);
  object-fit: contain;
  background: #050806;
}

.hidden {
  display: none !important;
}

@media (max-width: 980px) {
  .hero,
  .intro-band,
  .feature-grid,
  .split,
  .blog-layout,
  .contact-band,
  .editor-layout,
  .route-layout,
  .route-popular,
  .guide-grid,
  .kuro-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    align-items: end;
  }

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

  .sticky-heading {
    position: static;
  }

  .route-index {
    position: static;
    max-height: none;
  }

  .kuro-side {
    position: static;
  }
}

@media (max-width: 680px) {
  .site-header {
    align-items: flex-start;
    gap: 12px;
  }

  .brand small {
    display: none;
  }

  .top-nav {
    gap: 6px 12px;
    font-size: 13px;
  }

  .hero {
    padding-top: 112px;
  }

  h1 {
    font-size: clamp(48px, 15vw, 72px);
  }

  .section {
    padding: 64px 0;
  }

  .command-row {
    grid-template-columns: 1fr;
  }

  .tool-hero,
  .tool-hero.compact,
  .kuro-hero {
    background:
      linear-gradient(180deg, rgba(7, 17, 13, 0.86), rgba(7, 17, 13, 0.96)),
      var(--panel-solid);
  }

  .route-search,
  .route-stats,
  .popular-route-list {
    grid-template-columns: 1fr;
  }

  .editor-topbar {
    align-items: stretch;
    flex-direction: column;
  }

  .editor-actions .button {
    flex: 1 1 140px;
  }

  .edit-item-top {
    align-items: stretch;
    flex-direction: column;
  }

  .item-actions {
    justify-content: flex-start;
  }

  .kuro-step {
    grid-template-columns: 1fr;
  }
}