:root {
  --ink: #f3f7ef;
  --paper: #080b0e;
  --panel: #111820;
  --panel-2: #17222b;
  --court: #13b981;
  --court-dark: #071014;
  --line: #293747;
  --acid: #d7ff2f;
  --red: #ff5d4d;
  --blue: #45a3ff;
  --muted: #a9b5bc;
  --shadow: 0 22px 54px rgba(0, 0, 0, 0.38);
  --glow: 0 0 18px rgba(215, 255, 47, 0.22);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    linear-gradient(90deg, rgba(215, 255, 47, 0.045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(69, 163, 255, 0.04) 1px, transparent 1px),
    linear-gradient(135deg, rgba(19, 185, 129, 0.08), transparent 44%);
  background-size: 42px 42px, 42px 42px, 100% 100%;
  font-family: "Trebuchet MS", "Aptos", "Segoe UI", sans-serif;
  line-height: 1.6;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background:
    repeating-linear-gradient(90deg, transparent 0 118px, rgba(215, 255, 47, 0.055) 118px 120px),
    repeating-linear-gradient(180deg, transparent 0 148px, rgba(255, 255, 255, 0.035) 148px 150px);
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(7, 16, 20, 0.9);
  border-bottom: 1px solid rgba(215, 255, 47, 0.24);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 900;
  letter-spacing: 0;
  white-space: nowrap;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: #071014;
  background: var(--acid);
  border: 2px solid rgba(255, 255, 255, 0.8);
  border-radius: 8px;
  box-shadow: var(--glow);
  transform: skew(-8deg);
}

.site-nav {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.site-nav a {
  flex: 0 0 auto;
  padding: 8px 11px;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 900;
  text-decoration: none;
  text-transform: uppercase;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: #071014;
  border-color: var(--acid);
  background: var(--acid);
  box-shadow: var(--glow);
}

.reading-progress {
  position: sticky;
  top: 71px;
  z-index: 19;
  height: 4px;
  background: rgba(8, 11, 14, 0.68);
  transform: translateZ(0);
}

.reading-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--acid), var(--blue));
  box-shadow: var(--glow);
  transform: scaleX(0);
  transform-origin: left center;
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(310px, 0.72fr);
  gap: clamp(22px, 4vw, 54px);
  align-items: center;
  min-height: 560px;
  padding: 70px 0 36px;
}

.hero-copy {
  position: relative;
}

.eyebrow {
  display: inline-flex;
  margin: 0 0 14px;
  padding: 6px 10px;
  color: var(--acid);
  background: rgba(215, 255, 47, 0.08);
  border: 1px solid rgba(215, 255, 47, 0.42);
  border-radius: 4px;
  box-shadow: inset 0 0 20px rgba(215, 255, 47, 0.05);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.05;
  letter-spacing: 0;
}

h1 {
  max-width: 850px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 5.7rem;
  font-weight: 900;
  text-shadow: 0 0 34px rgba(215, 255, 47, 0.11);
}

.hero p {
  max-width: 680px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 1.18rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button,
button.copy-code {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border: 1px solid rgba(215, 255, 47, 0.6);
  border-radius: 7px;
  box-shadow: 0 0 0 1px rgba(215, 255, 47, 0.12), var(--glow);
  font: inherit;
  font-weight: 900;
  text-decoration: none;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover,
button.copy-code:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 0 1px rgba(215, 255, 47, 0.26), 0 0 24px rgba(215, 255, 47, 0.3);
}

.primary {
  color: #071014;
  background: var(--acid);
}

.secondary {
  color: var(--ink);
  background: rgba(17, 24, 32, 0.9);
}

.hero-visual {
  margin: 0;
  padding: 14px;
  background: linear-gradient(180deg, rgba(17, 24, 32, 0.96), rgba(7, 16, 20, 0.96));
  border: 1px solid rgba(215, 255, 47, 0.25);
  border-radius: 8px;
  box-shadow: var(--shadow);
  transform: rotate(1deg);
}

.hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
}

.hero-visual figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 900;
}

.hero-home {
  grid-template-columns: minmax(0, 1fr) minmax(220px, 0.38fr);
  min-height: 430px;
  padding-bottom: 22px;
}

.hero-home h1 {
  font-size: clamp(3.4rem, 6.4vw, 5.35rem);
}

.hero-home .hero-visual {
  width: min(100%, 360px);
  justify-self: end;
}

.hero-home .hero-visual img {
  aspect-ratio: 1;
  object-fit: cover;
}

.not-found-shell {
  display: grid;
  min-height: 430px;
  align-content: center;
  padding: 72px 0 34px;
}

.not-found-shell h1 {
  max-width: 780px;
}

.not-found-shell p {
  max-width: 690px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 1.14rem;
}

.not-found-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  padding-bottom: 70px;
}

.not-found-card {
  display: grid;
  gap: 8px;
  min-height: 154px;
  align-content: start;
  padding: 18px;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(69, 163, 255, 0.1), transparent 48%),
    rgba(17, 24, 32, 0.96);
  border: 1px solid rgba(69, 163, 255, 0.24);
  border-radius: 8px;
  box-shadow: var(--shadow);
  text-decoration: none;
  transition: border-color 160ms ease, transform 160ms ease, background 160ms ease;
}

.not-found-card span {
  color: var(--acid);
  font-size: 0.8rem;
  font-weight: 900;
  text-transform: uppercase;
}

.not-found-card strong {
  color: var(--ink);
  font-size: 0.98rem;
  line-height: 1.35;
}

.not-found-card:hover {
  background:
    linear-gradient(135deg, rgba(215, 255, 47, 0.12), transparent 48%),
    rgba(23, 34, 43, 0.96);
  border-color: var(--acid);
  transform: translateY(-2px);
}

.jump-nav {
  position: sticky;
  top: 75px;
  z-index: 18;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  margin: -8px 0 18px;
  padding: 10px 0;
  background: linear-gradient(180deg, rgba(8, 11, 14, 0.92), rgba(8, 11, 14, 0.72));
  scrollbar-width: thin;
}

.jump-nav a {
  flex: 0 0 auto;
  padding: 7px 10px;
  color: var(--muted);
  background: rgba(23, 34, 43, 0.86);
  border: 1px solid rgba(69, 163, 255, 0.22);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 900;
  text-decoration: none;
}

.jump-nav a:hover {
  color: #071014;
  background: var(--acid);
  border-color: var(--acid);
  box-shadow: var(--glow);
}

.content-grid {
  display: grid;
  gap: 18px;
  padding-bottom: 70px;
}

.home-dashboard {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(300px, 0.7fr);
  gap: 18px;
  align-items: start;
}

.home-main-column,
.home-side-column {
  display: grid;
  gap: 18px;
}

.content-panel,
.table-wrap {
  position: relative;
  background: linear-gradient(180deg, rgba(17, 24, 32, 0.98), rgba(13, 19, 25, 0.98));
  border: 1px solid rgba(215, 255, 47, 0.2);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.content-panel::before,
.table-wrap::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 28px;
  height: 2px;
  content: "";
  background: var(--acid);
  box-shadow: var(--glow);
}

.content-panel {
  padding: clamp(20px, 3vw, 34px);
}

.content-panel h2 {
  margin-bottom: 14px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2.2rem;
}

.content-panel h3 {
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.content-panel p {
  margin: 0 0 12px;
  color: var(--muted);
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

.compact-table table {
  min-width: 680px;
}

caption {
  padding: 14px;
  color: var(--acid);
  text-align: left;
  font-weight: 900;
}

th,
td {
  padding: 14px;
  border-top: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}

th {
  color: var(--muted);
  background: rgba(215, 255, 47, 0.055);
  font-size: 0.82rem;
  text-transform: uppercase;
}

tr:hover td {
  background: rgba(215, 255, 47, 0.025);
}

code {
  padding: 4px 7px;
  color: var(--acid);
  background: rgba(215, 255, 47, 0.075);
  border: 1px solid rgba(215, 255, 47, 0.28);
  border-radius: 4px;
  font-weight: 900;
}

button.copy-code {
  min-height: 36px;
  padding: 7px 10px;
  color: #071014;
  background: var(--acid);
}

.verification-badge {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  padding: 6px 10px;
  color: var(--acid);
  background: rgba(215, 255, 47, 0.08);
  border: 1px solid rgba(215, 255, 47, 0.34);
  border-radius: 999px;
  box-shadow: var(--glow);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.muted-badge {
  color: var(--muted);
  background: rgba(169, 181, 188, 0.08);
  border-color: rgba(169, 181, 188, 0.28);
  box-shadow: none;
}

.shortcut-card h2,
.verification-card h2,
.planned-tool-card h2,
.tool-card h2 {
  font-size: 1.55rem;
}

.shortcut-list {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.shortcut-link {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  background: rgba(23, 34, 43, 0.78);
  border: 1px solid rgba(69, 163, 255, 0.24);
  border-radius: 7px;
  text-decoration: none;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.shortcut-link span {
  color: var(--blue);
  font-weight: 900;
  text-transform: uppercase;
}

.shortcut-link strong {
  color: var(--ink);
  font-size: 0.95rem;
  line-height: 1.35;
}

.shortcut-link:hover {
  border-color: var(--blue);
  background: rgba(69, 163, 255, 0.1);
  transform: translateX(3px);
}

.text-link {
  display: inline-flex;
  margin-top: 6px;
  color: var(--acid);
  font-weight: 900;
  text-decoration: none;
}

.text-link:hover {
  text-decoration: underline;
}

.planned-tool-card {
  background:
    repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.025) 0 10px, transparent 10px 20px),
    linear-gradient(180deg, rgba(17, 24, 32, 0.98), rgba(13, 19, 25, 0.98));
  border-style: dashed;
}

.compact-button {
  width: fit-content;
  min-height: 38px;
  margin-top: 8px;
  padding: 8px 12px;
  font-size: 0.92rem;
}

.tool-note {
  color: var(--muted);
  font-size: 0.9rem;
}

.calculator-panel {
  overflow: hidden;
}

.calculator-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 1.05fr);
  gap: 18px;
  align-items: stretch;
}

.calculator-form,
.calculator-result {
  display: grid;
  gap: 14px;
}

.calculator-form {
  padding-right: 18px;
  border-right: 1px solid rgba(215, 255, 47, 0.18);
}

.calculator-form label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 900;
  text-transform: uppercase;
}

.calculator-form select,
.calculator-form input {
  width: 100%;
  min-height: 44px;
  padding: 9px 11px;
  color: var(--ink);
  background: rgba(8, 11, 14, 0.78);
  border: 1px solid rgba(215, 255, 47, 0.24);
  border-radius: 7px;
  font: inherit;
  font-weight: 900;
}

.calculator-form select:focus,
.calculator-form input:focus {
  outline: 2px solid var(--acid);
  outline-offset: 2px;
}

.calculator-result {
  min-height: 100%;
  padding: 18px;
  background:
    linear-gradient(135deg, rgba(69, 163, 255, 0.08), transparent 46%),
    rgba(23, 34, 43, 0.72);
  border: 1px solid rgba(69, 163, 255, 0.22);
  border-radius: 8px;
}

.calculator-result h2 {
  color: var(--acid);
}

.yen-stat-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.yen-stat-list li {
  display: grid;
  gap: 4px;
  padding: 12px;
  background: rgba(8, 11, 14, 0.7);
  border: 1px solid rgba(215, 255, 47, 0.18);
  border-radius: 8px;
}

.yen-stat-list span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.yen-stat-list strong {
  color: var(--acid);
  font-size: 1.45rem;
  line-height: 1.05;
}

.serve-timer-result {
  gap: 16px;
}

.timer-board {
  display: grid;
  gap: 12px;
  padding: 16px;
  background: rgba(8, 11, 14, 0.7);
  border: 1px solid rgba(215, 255, 47, 0.18);
  border-radius: 8px;
}

.timer-readout {
  display: block;
  color: var(--acid);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 3.4rem;
  line-height: 1;
  text-align: center;
  text-shadow: var(--glow);
}

.timer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.next-step-panel {
  position: relative;
  padding: clamp(20px, 3vw, 34px);
  background:
    linear-gradient(135deg, rgba(215, 255, 47, 0.1), transparent 42%),
    linear-gradient(180deg, rgba(17, 24, 32, 0.98), rgba(13, 19, 25, 0.98));
  border: 1px solid rgba(215, 255, 47, 0.2);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.next-step-panel::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 28px;
  height: 2px;
  content: "";
  background: var(--acid);
  box-shadow: var(--glow);
}

.next-step-panel h2 {
  margin-bottom: 14px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2.2rem;
}

.next-step-panel p {
  margin: 0 0 12px;
  color: var(--muted);
}

.next-step-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.next-step-card {
  display: grid;
  min-height: 132px;
  align-content: start;
  gap: 8px;
  padding: 16px;
  background: rgba(23, 34, 43, 0.84);
  border: 1px solid rgba(69, 163, 255, 0.24);
  border-radius: 8px;
  text-decoration: none;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.next-step-card span {
  color: var(--blue);
  font-size: 0.82rem;
  font-weight: 900;
  text-transform: uppercase;
}

.next-step-card strong {
  color: var(--ink);
  line-height: 1.35;
}

.next-step-card:hover {
  border-color: var(--acid);
  background: rgba(215, 255, 47, 0.08);
  transform: translateY(-2px);
}

.helpful-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
}

.helpful-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.helpful-actions button {
  min-height: 40px;
  padding: 8px 12px;
  color: var(--ink);
  background: rgba(23, 34, 43, 0.86);
  border: 1px solid rgba(215, 255, 47, 0.34);
  border-radius: 7px;
  font: inherit;
  font-weight: 900;
  cursor: pointer;
}

.helpful-actions button:hover {
  color: #071014;
  background: var(--acid);
  box-shadow: var(--glow);
}

.helpful-status {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

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

.update-log-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.update-card {
  display: grid;
  gap: 8px;
  min-height: 240px;
  align-content: start;
  padding: 16px;
  background:
    linear-gradient(135deg, rgba(215, 255, 47, 0.09), transparent 44%),
    rgba(23, 34, 43, 0.82);
  border: 1px solid rgba(215, 255, 47, 0.2);
  border-radius: 8px;
}

.update-card span {
  width: fit-content;
  padding: 4px 7px;
  color: #071014;
  background: var(--acid);
  border-radius: 4px;
  box-shadow: var(--glow);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.update-card h3 {
  font-size: 1.2rem;
}

.update-card strong {
  color: var(--blue);
  line-height: 1.3;
}

.update-card p {
  margin: 0;
}

.stat-card,
.page-card,
.tier-card,
details,
.link-board a,
.route-strip a {
  background: var(--panel-2);
  border: 1px solid rgba(215, 255, 47, 0.16);
  border-radius: 8px;
}

.stat-card,
.page-card {
  min-height: 145px;
  padding: 16px;
}

.stat-card span,
.page-card span {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.stat-card strong,
.page-card strong {
  display: block;
  margin: 8px 0;
  color: var(--ink);
  font-size: 1.36rem;
  line-height: 1.1;
}

.page-card {
  color: var(--ink);
  text-decoration: none;
}

.page-card:hover {
  border-color: var(--acid);
  background: rgba(215, 255, 47, 0.09);
}

.split-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.tier-stack {
  display: grid;
  gap: 12px;
}

.tier-card {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 14px;
  padding: 14px;
}

.tier-rank {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  color: #071014;
  background: var(--acid);
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 6px;
  box-shadow: var(--glow);
  font-size: 1.55rem;
  font-weight: 900;
}

.tier-a .tier-rank {
  color: #06131f;
  background: var(--blue);
}

.tier-b .tier-rank {
  color: #180706;
  background: var(--red);
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.pill-row span {
  padding: 5px 9px;
  color: var(--ink);
  background: rgba(215, 255, 47, 0.09);
  border: 1px solid rgba(215, 255, 47, 0.28);
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 900;
}

.check-list,
.sources ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.steps {
  margin: 0;
  padding-left: 22px;
  color: var(--muted);
}

.steps li + li,
.check-list li + li {
  margin-top: 8px;
}

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

details {
  padding: 14px 16px;
}

summary {
  color: var(--ink);
  font-weight: 900;
  cursor: pointer;
}

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

.link-board a,
.route-strip a {
  padding: 14px;
  font-weight: 900;
  text-decoration: none;
}

.link-board a:hover,
.route-strip a:hover {
  border-color: var(--acid);
  color: var(--acid);
}

.site-footer {
  padding: 28px clamp(18px, 4vw, 56px);
  color: var(--muted);
  background: #050709;
  border-top: 1px solid rgba(215, 255, 47, 0.18);
}

.footer-inner {
  width: min(1180px, 100%);
  margin: 0 auto;
}

.site-footer p {
  margin: 0 0 6px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 12px;
}

.footer-links a {
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 900;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--acid);
}

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    width: 100%;
  }

  .reading-progress {
    top: 112px;
  }

  .jump-nav {
    top: 116px;
  }

  .hero,
  .split-panel,
  .home-dashboard {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 0;
    padding-top: 46px;
  }

  h1 {
    font-size: 4.1rem;
  }

  .hero-home .hero-visual {
    justify-self: start;
  }

  .stat-grid,
  .page-grid,
  .update-log-grid,
  .yen-stat-list,
  .link-board,
  .route-strip,
  .next-step-grid,
  .not-found-grid,
  .calculator-layout {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .helpful-panel {
    grid-template-columns: 1fr;
  }

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

  .calculator-form {
    padding-right: 0;
    border-right: 0;
  }
}

@media (max-width: 560px) {
  main {
    width: min(100% - 22px, 1180px);
  }

  .brand {
    white-space: normal;
  }

  h1 {
    font-size: 3rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .stat-grid,
  .page-grid,
  .update-log-grid,
  .yen-stat-list,
  .link-board,
  .route-strip,
  .next-step-grid,
  .not-found-grid,
  .calculator-layout {
    grid-template-columns: 1fr;
  }

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