:root {
  --color-primary: #171514;
  --color-secondary: #2f6f9f;
  --color-accent: #f4a51c;
  --color-success: #20945f;
  --color-danger: #c93535;
  --color-background: #dce8f1;
  --color-surface: rgba(255, 255, 255, 0.72);
  --color-text: #181615;
  --color-muted: #4d555b;
  --color-border: rgba(23, 21, 20, 0.11);
  --color-soft-blue: rgba(255, 255, 255, 0.48);
  --color-soft-amber: #fff5da;
  --shadow-soft: 0 26px 70px rgba(40, 55, 68, 0.13);
  --shadow-card: 0 18px 50px rgba(40, 55, 68, 0.1);
  --radius-lg: 28px;
  --radius-md: 22px;
  --radius-sm: 16px;
}

* {
  box-sizing: border-box;
}

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 142px;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 8% 18%, rgba(255, 255, 255, 0.78), transparent 16rem),
    radial-gradient(circle at 92% 18%, rgba(255, 255, 255, 0.68), transparent 15rem),
    linear-gradient(180deg, #a9c9e3 0, var(--color-background) 560px),
    var(--color-background);
  color: var(--color-text);
  font-family: Pretendard, "Noto Sans KR", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
  overscroll-behavior-y: none;
  word-break: keep-all;
}

a {
  color: inherit;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: 12px;
  z-index: 100;
  transform: translateY(-140%);
  border-radius: 6px;
  background: var(--color-primary);
  color: #fff;
  padding: 10px 14px;
  text-decoration: none;
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(100% - 40px, 1120px);
  margin-inline: auto;
}

.narrow-container {
  width: min(100% - 32px, 880px);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 70;
  border-bottom: 0;
  background: rgba(169, 201, 227, 0.78);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  min-height: 88px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  color: var(--color-text);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 999px;
  background: var(--color-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 900;
  box-shadow: none;
}

.primary-nav,
.quick-nav {
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-inline: contain;
  scrollbar-width: thin;
}

.primary-nav {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  white-space: nowrap;
}

.primary-nav a,
.quick-nav a {
  border-radius: 999px;
  color: rgba(24, 22, 21, 0.82);
  font-size: 15px;
  font-weight: 700;
  padding: 9px 11px;
  text-decoration: none;
}

.primary-nav a:hover,
.primary-nav a:focus-visible,
.primary-nav a.is-active,
.quick-nav a:hover,
.quick-nav a:focus-visible,
.quick-nav a.is-active {
  background: rgba(255, 255, 255, 0.48);
  color: var(--color-text);
  outline: none;
}

.section {
  padding: 92px 0;
}

.is-page-hidden {
  display: none !important;
}

.compact-section {
  padding-top: 42px;
}

.section-tint {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18) 0%, rgba(255, 255, 255, 0.34) 100%);
}

.hero-section {
  position: relative;
  overflow: hidden;
  min-height: 760px;
  padding: 82px 0 92px;
  background:
    radial-gradient(ellipse at 0% 42%, rgba(255, 255, 255, 0.78), transparent 13rem),
    radial-gradient(ellipse at 100% 42%, rgba(255, 255, 255, 0.72), transparent 13rem),
    linear-gradient(180deg, #a7c7e0 0%, #d3dee6 100%);
  color: var(--color-text);
}

.hero-section::before {
  position: absolute;
  inset: 0;
  content: "";
  background:
    radial-gradient(ellipse at 5% 35%, rgba(255, 255, 255, 0.86) 0 11%, transparent 12%),
    radial-gradient(ellipse at 11% 38%, rgba(255, 255, 255, 0.54) 0 8%, transparent 9%),
    radial-gradient(ellipse at 96% 36%, rgba(255, 255, 255, 0.82) 0 12%, transparent 13%),
    radial-gradient(ellipse at 88% 40%, rgba(255, 255, 255, 0.56) 0 8%, transparent 9%);
  filter: blur(1px);
  pointer-events: none;
}

.hero-section .container {
  position: relative;
  z-index: 1;
}

.notice-section {
  padding-bottom: 96px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px;
  align-items: center;
  justify-items: center;
  text-align: center;
}

.hero-copy {
  min-width: 0;
}

.eyebrow {
  display: none;
}

.hero-section .eyebrow {
  color: rgba(24, 22, 21, 0.74);
}

h1,
h2,
h3 {
  margin: 0;
  letter-spacing: 0;
  line-height: 1.25;
  text-wrap: balance;
}

h1 {
  max-width: 860px;
  font-size: clamp(48px, 7vw, 86px);
  font-weight: 900;
  line-height: 1.08;
}

h2 {
  font-size: 28px;
  font-weight: 800;
}

h3 {
  font-size: 20px;
  font-weight: 800;
}

p {
  margin: 0;
  overflow-wrap: break-word;
  text-wrap: pretty;
}

.section-lead {
  max-width: 780px;
  margin: 14px 0 0;
  color: var(--color-muted);
  line-height: 1.75;
}

.hero-section .section-lead {
  max-width: 720px;
  margin-inline: auto;
  color: rgba(24, 22, 21, 0.72);
  font-size: 22px;
  line-height: 1.45;
}

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

.section-heading::after {
  display: block;
  width: 48px;
  height: 4px;
  margin-top: 16px;
  border-radius: 999px;
  background: var(--color-primary);
  content: "";
}

.narrow-container .section-heading::after {
  width: 42px;
}

.hero-meta {
  justify-content: center;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.hero-meta span {
  border: 1px solid rgba(24, 22, 21, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.34);
  color: rgba(24, 22, 21, 0.76);
  font-size: 14px;
  font-weight: 800;
  padding: 6px 10px;
}

.button-row {
  justify-content: center;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 14px 22px;
  font-weight: 800;
  text-decoration: none;
}

.button svg {
  width: 21px;
  height: 21px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.button-primary {
  background: #171514;
  color: #fff;
  box-shadow: 0 16px 32px rgba(24, 22, 21, 0.2);
}

.button-primary:hover {
  background: #2a2623;
}

.button-secondary {
  border-color: rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.28);
  color: var(--color-text);
}

.button-secondary:hover {
  background: #fff;
  color: var(--color-primary);
}

.hero-panel,
.info-card,
.compare-card,
.timeline-card,
.calendar-month,
.rule-card,
.stat-card,
.notice-box {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.hero-panel {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  width: min(100%, 980px);
  gap: 12px;
  border-color: rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.24);
  padding: 14px;
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(16px);
}

.hero-panel-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.68);
  color: var(--color-primary);
  padding: 16px 18px;
}

.hero-panel-top span {
  color: #475569;
  font-size: 14px;
  font-weight: 900;
}

.hero-panel-top strong {
  font-size: 30px;
  line-height: 1;
}

.hero-panel article {
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.7);
  padding: 18px;
  text-align: left;
}

.hero-panel h2 {
  margin-top: 8px;
  font-size: 18px;
}

.hero-panel p {
  margin-top: 8px;
  color: var(--color-muted);
}

.tag,
.badge {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.68);
  color: #8a5a0a;
  font-size: 13px;
  font-weight: 800;
  padding: 3px 10px;
}

.tag-blue,
.badge-blue {
  background: rgba(255, 255, 255, 0.62);
  color: #2f6f9f;
}

.tag-danger,
.badge-danger {
  background: #fef2f2;
  color: var(--color-danger);
}

.badge-success {
  background: #f0fdf4;
  color: var(--color-success);
}

.summary-grid,
.rule-grid,
.score-grid,
.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.callout + .rule-grid,
.callout + .score-grid,
.callout + .summary-grid,
.callout + .stat-grid {
  margin-top: 22px;
}

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

.info-card,
.rule-card,
.stat-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  overflow: hidden;
  min-width: 0;
  padding: 28px 26px;
}

.info-card::before,
.rule-card::before,
.stat-card::before,
.compare-card::before,
.timeline-card::before,
.calendar-month::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  background: var(--color-secondary);
  content: "";
}

.rule-card::before {
  background: var(--color-accent);
}

.stat-card::before {
  background: var(--color-success);
}

.info-card:hover,
.rule-card:hover,
.compare-card:hover,
.timeline-card:hover,
.calendar-month:hover,
.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 54px rgba(40, 55, 68, 0.15);
}

.info-card,
.rule-card,
.compare-card,
.timeline-card,
.calendar-month,
.stat-card {
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.info-card h3,
.rule-card h3 {
  margin-top: 14px;
  line-height: 1.35;
}

.info-card p,
.rule-card p,
.stat-card p {
  margin-top: 12px;
  color: var(--color-muted);
  line-height: 1.75;
}

.card-icon {
  display: inline-grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: #2f6f9f;
}

.card-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.quick-nav-wrap {
  display: none;
}

.quick-nav {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-block: 12px;
  white-space: nowrap;
}

.tabs {
  display: grid;
  gap: 26px;
}

.tab-list {
  display: inline-flex;
  width: fit-content;
  max-width: 100%;
  gap: 6px;
  overflow-x: auto;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.42);
  padding: 7px;
}

.schedule-type-guide {
  margin-bottom: 28px;
  border: 1px solid rgba(47, 111, 159, 0.28);
  border-radius: var(--radius-md);
  background: rgba(237, 246, 252, 0.72);
  padding: 22px;
  box-shadow: var(--shadow-card);
}

.schedule-type-guide h3 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  color: #143b5c;
  font-size: 18px;
}

.schedule-type-guide h3 svg {
  display: inline-grid;
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  border-radius: 8px;
  background: #203a59;
  color: #fff;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
  padding: 6px;
}

.schedule-type-list {
  display: grid;
  gap: 8px;
}

.schedule-type-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 8px;
  border-left: 4px solid currentColor;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
  padding: 14px 14px 14px 12px;
  color: #223140;
}

.schedule-type-card strong {
  color: currentColor;
  font-weight: 900;
  white-space: nowrap;
}

.schedule-type-card span {
  min-width: 0;
  font-weight: 700;
  line-height: 1.55;
}

.schedule-type-card p,
.schedule-type-card em,
.schedule-type-card mark {
  grid-column: 1 / -1;
  font-size: 14px;
  line-height: 1.6;
}

.schedule-type-card p {
  color: #2f3a44;
}

.schedule-type-card em {
  color: #b2362d;
  font-style: normal;
  font-weight: 900;
}

.schedule-type-card mark {
  width: fit-content;
  border-radius: 8px;
  background: rgba(126, 74, 170, 0.12);
  color: #713f9f;
  font-weight: 900;
  padding: 2px 7px;
}

.schedule-type-red {
  color: #d64135;
}

.schedule-type-orange {
  color: #d97706;
}

.schedule-type-purple {
  color: #854d9d;
}

.schedule-type-green {
  color: #24a064;
}

.schedule-type-notes {
  display: grid;
  gap: 5px;
  margin: 14px 0 0;
  padding-left: 0;
  color: #334155;
  font-size: 14px;
  line-height: 1.65;
  list-style: none;
}

.schedule-type-notes li::before {
  margin-right: 5px;
  content: "※";
}

.tab-button {
  min-height: 44px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: #374151;
  font-weight: 800;
  padding: 10px 16px;
  white-space: nowrap;
}

.tab-button.is-active {
  background: #171514;
  color: #fff;
}

.tab-button:focus-visible,
.accordion-trigger:focus-visible,
.checklist input:focus-visible,
.text-button:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.35);
  outline-offset: 2px;
}

.timeline-group {
  display: grid;
  gap: 20px;
}

.calendar-board {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  align-items: start;
}

.calendar-month {
  position: relative;
  overflow: hidden;
  min-height: 100%;
  padding: 0;
}

.calendar-month-wide {
  grid-column: span 2;
}

.month-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid rgba(23, 21, 20, 0.08);
  background: rgba(255, 255, 255, 0.44);
  padding: 20px 22px;
}

.month-head span {
  color: var(--color-text);
  font-size: 24px;
  font-weight: 900;
  line-height: 1.1;
}

.month-head strong {
  flex: 0 0 auto;
  border-radius: 999px;
  background: rgba(23, 21, 20, 0.08);
  color: var(--color-text);
  font-size: 12px;
  font-weight: 900;
  padding: 5px 9px;
}

.calendar-event {
  display: grid;
  gap: 6px;
  margin: 16px;
  border: 1px solid rgba(23, 21, 20, 0.08);
  border-left: 0;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.66);
  padding: 16px;
}

.calendar-event + .calendar-event {
  margin-top: 0;
}

.calendar-event time {
  color: #8a5a0a;
  font-size: 14px;
  font-weight: 900;
}

.calendar-event strong {
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.35;
  text-wrap: pretty;
}

.calendar-event span {
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.55;
}

.event-primary {
  background: rgba(237, 246, 252, 0.8);
}

.event-primary time {
  color: var(--color-primary);
}

.event-success {
  background: rgba(238, 249, 242, 0.8);
}

.event-success time {
  color: #166534;
}

.event-muted {
  background: rgba(255, 255, 255, 0.48);
}

.event-muted time {
  color: #475569;
}

.timeline-card {
  position: relative;
  overflow: hidden;
  padding: 22px;
}

.timeline {
  position: relative;
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.timeline li {
  position: relative;
  display: grid;
  grid-template-columns: 150px minmax(0, 170px) minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  padding: 14px;
}

.timeline li::before {
  position: absolute;
  top: 18px;
  left: -7px;
  width: 12px;
  height: 12px;
  border: 3px solid #fff;
  border-radius: 999px;
  background: var(--color-secondary);
  box-shadow: 0 0 0 1px #bfdbfe;
  content: "";
}

.timeline time {
  color: var(--color-primary);
  font-size: 18px;
  font-weight: 900;
}

.timeline span {
  color: var(--color-muted);
}

.compare-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.compare-card {
  position: relative;
  overflow: hidden;
  padding: 30px;
}

.compare-card h3 {
  margin-top: 12px;
}

.compare-card dl {
  display: grid;
  gap: 14px;
  margin: 20px 0 0;
}

.compare-card dt {
  color: var(--color-primary);
  font-weight: 900;
}

.compare-card dd {
  margin: 4px 0 0;
  color: var(--color-muted);
}

.callout {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-top: 20px;
  border-radius: var(--radius-md);
  padding: 24px 26px;
}

.callout strong {
  display: block;
  flex: 0 0 auto;
  font-size: 18px;
  line-height: 1.45;
}

.callout p {
  margin-top: 6px;
  line-height: 1.75;
}

.callout-info > strong {
  flex-basis: 200px;
}

.callout-info > p {
  flex: 1 1 auto;
}

.keep-together {
  white-space: nowrap;
}

.callout-info {
  border: 1px solid rgba(47, 111, 159, 0.18);
  background: rgba(237, 246, 252, 0.76);
  color: #174668;
}

.callout-warning {
  border: 1px solid rgba(244, 165, 28, 0.28);
  background: rgba(255, 247, 224, 0.82);
  color: #6f3f06;
}

.alert-mark {
  display: inline-grid;
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 999px;
  background: #171514;
  color: #fff;
  font-weight: 900;
}

.score-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 22px;
  align-items: center;
  margin-bottom: 18px;
  border: 1px solid rgba(255, 255, 255, 0.54);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.64);
  padding: 30px;
  box-shadow: var(--shadow-soft);
}

.score-label {
  display: block;
  color: var(--color-muted);
  font-weight: 800;
}

.score-total,
.big-number,
.stat-card strong {
  display: block;
  color: var(--color-text);
  font-size: 34px;
  font-weight: 900;
  line-height: 1.15;
}

.bar-stack {
  display: grid;
  gap: 16px;
}

.bar-row span {
  display: block;
  margin-bottom: 7px;
  font-weight: 800;
}

.bar-track {
  height: 16px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(23, 21, 20, 0.12);
}

.bar-fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: #171514;
  box-shadow: inset 0 -2px 0 rgba(0, 0, 0, 0.08);
}

.bar-fill-accent {
  background: #f4a51c;
}

.clean-list {
  display: grid;
  gap: 10px;
  margin: 12px 0 0;
  padding-left: 20px;
}

.clean-list li {
  color: var(--color-muted);
  line-height: 1.65;
}

.accordion {
  display: grid;
  gap: 12px;
}

.accordion-item {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.52);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.62);
  box-shadow: var(--shadow-card);
}

.accordion-trigger {
  display: flex;
  width: 100%;
  min-height: 56px;
  align-items: center;
  justify-content: space-between;
  border: 0;
  background: transparent;
  color: var(--color-text);
  font-weight: 900;
  padding: 20px 22px;
  text-align: left;
}

.accordion-trigger:hover {
  background: rgba(255, 255, 255, 0.3);
}

.accordion-trigger::after {
  content: "+";
  color: var(--color-primary);
  font-size: 24px;
  font-weight: 700;
}

.accordion-trigger[aria-expanded="true"]::after {
  content: "-";
}

.accordion-panel {
  border-top: 1px solid rgba(23, 21, 20, 0.08);
  padding: 22px;
}

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

.mini-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 16px;
}

.mini-grid ul {
  margin: 10px 0 0;
  padding-left: 20px;
  color: var(--color-muted);
}

.note {
  margin-top: 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.58);
  padding: 12px;
  font-size: 14px;
}

.stat-grid {
  margin-bottom: 16px;
}

.stat-card {
  border-color: #bfdbfe;
}

.checklist {
  display: grid;
  gap: 10px;
  border: 1px solid rgba(255, 255, 255, 0.52);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.62);
  padding: 20px;
  box-shadow: var(--shadow-soft);
}

.checklist-type-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.checklist-type-button {
  min-height: 42px;
  border: 1px solid rgba(23, 21, 20, 0.09);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.54);
  color: #374151;
  font-weight: 900;
  padding: 9px 15px;
}

.checklist-type-button:hover,
.checklist-type-button:focus-visible,
.checklist-type-button.is-active {
  background: #171514;
  color: #fff;
  outline: none;
}

.typed-checklist {
  gap: 18px;
}

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

.checklist-type-panel[hidden] {
  display: none;
}

.checklist-type-panel h3 {
  font-size: 22px;
}

.checklist-group {
  display: grid;
  gap: 10px;
  min-width: 0;
  margin: 0;
  border: 0;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.42);
  padding: 18px;
}

.checklist-group legend {
  margin-bottom: 2px;
  color: var(--color-secondary);
  font-size: 16px;
  font-weight: 900;
}

.checklist-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
  border: 1px solid rgba(255, 255, 255, 0.52);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.62);
  padding: 16px 18px;
}

.checklist-status span {
  display: block;
  color: var(--color-text);
  font-weight: 900;
}

.checklist-progress {
  width: min(52vw, 360px);
  height: 10px;
  overflow: hidden;
  margin-top: 8px;
  border-radius: 999px;
  background: #e5e7eb;
}

.checklist-progress span {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: var(--color-success);
  transition: width 180ms ease;
}

.text-button {
  min-height: 40px;
  border: 1px solid rgba(23, 21, 20, 0.09);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.5);
  color: var(--color-text);
  font-size: 14px;
  font-weight: 800;
  padding: 8px 12px;
}

.text-button:hover {
  border-color: #bfdbfe;
  color: var(--color-primary);
}

.checklist label {
  display: flex;
  min-height: 50px;
  align-items: flex-start;
  gap: 12px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.54);
  padding: 16px;
}

.checklist label:hover {
  background: rgba(255, 255, 255, 0.74);
}

.checklist input {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  margin-top: 3px;
  accent-color: var(--color-primary);
}

.checklist label:has(input:checked) {
  background: rgba(237, 246, 252, 0.9);
  color: #174668;
  font-weight: 800;
}

.notice-box {
  border-color: rgba(255, 255, 255, 0.52);
  background: rgba(255, 255, 255, 0.62);
  padding: 34px;
}

.notice-box p {
  margin-top: 12px;
  color: #374151;
}

.extra-hero,
.extra-card {
  border: 1px solid rgba(255, 255, 255, 0.52);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.62);
  box-shadow: var(--shadow-card);
}

.extra-hero {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 28px;
  background: #223f61;
  color: #fff;
  padding: 26px 28px;
}

.extra-hero svg,
.extra-inner h4 svg {
  width: 24px;
  height: 24px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.extra-hero strong {
  display: block;
  font-size: 21px;
  line-height: 1.45;
}

.extra-hero ul {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding-left: 20px;
  color: rgba(255, 255, 255, 0.88);
}

.extra-stack {
  display: grid;
  gap: 28px;
}

.extra-card {
  overflow: hidden;
}

.extra-title {
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid rgba(23, 21, 20, 0.08);
  background: rgba(255, 255, 255, 0.4);
  padding: 18px 24px;
}

.extra-title h3 {
  color: var(--color-text);
  font-size: 21px;
}

.step-badge {
  display: inline-grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 999px;
  background: #171514;
  color: #fff;
  font-size: 14px;
  font-weight: 900;
}

.extra-inner {
  padding: 26px 28px 28px;
}

.extra-inner h4 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-size: 22px;
  line-height: 1.35;
}

.extra-inner p {
  color: #2f3a44;
  line-height: 1.8;
}

.sub-title {
  margin-top: 26px !important;
  padding-top: 22px;
  border-top: 1px solid rgba(23, 21, 20, 0.1);
  color: #9a5b11;
  font-size: 18px !important;
}

.responsive-table {
  overflow-x: auto;
  margin-top: 18px;
  border-radius: 18px;
  border: 1px solid rgba(23, 21, 20, 0.08);
  background: rgba(255, 255, 255, 0.44);
}

.responsive-table table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: 15px;
}

.responsive-table th {
  background: #203a59;
  color: #fff;
  font-weight: 900;
  text-align: left;
}

.responsive-table th,
.responsive-table td {
  padding: 15px 16px;
  border-bottom: 1px solid rgba(23, 21, 20, 0.09);
  vertical-align: top;
  line-height: 1.65;
}

.responsive-table tr:last-child td {
  border-bottom: 0;
}

.extra-note {
  margin-top: 18px;
  border-radius: 18px;
  padding: 17px 18px;
  border-left: 5px solid currentColor;
}

.note-success {
  background: rgba(225, 246, 231, 0.74);
  color: #166534 !important;
}

.note-warning {
  background: rgba(255, 246, 220, 0.82);
  color: #8a5a0a !important;
}

.note-danger {
  background: rgba(255, 232, 236, 0.82);
  color: #b4233b !important;
}

.note-compare {
  background: rgba(244, 235, 255, 0.72);
  color: #5b2d8f !important;
}

.extra-card-success {
  border-color: rgba(32, 148, 95, 0.34);
}

.extra-card-warning {
  border-color: rgba(244, 165, 28, 0.4);
}

.extra-card-info {
  border-color: rgba(47, 111, 159, 0.32);
}

.extra-card-compare {
  border-color: rgba(126, 74, 170, 0.36);
}

.extra-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-left: 22px;
}

.extra-list li {
  line-height: 1.8;
}

.extra-list mark {
  border-radius: 8px;
  background: #fff1bd;
  padding: 2px 7px;
  font-weight: 900;
}

@media (max-width: 980px) {
  .hero-grid,
  .score-panel,
  .compare-grid {
    grid-template-columns: 1fr;
  }

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

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

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

  .calendar-month-wide {
    grid-column: span 2;
  }

  .timeline li {
    grid-template-columns: 130px minmax(0, 1fr);
  }

  .timeline span {
    grid-column: 2;
  }
}

@media (max-width: 760px) {
  html {
    scroll-padding-top: 170px;
  }

  .header-inner {
    min-height: 104px;
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
    gap: 8px;
    padding: 12px 0;
  }

  .primary-nav {
    width: 100%;
    margin-inline: 0;
    padding: 0 0 4px;
  }

  .primary-nav a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }

  .quick-nav-wrap {
    top: 104px;
  }

  .section {
    padding: 54px 0;
  }

  .hero-section {
    min-height: auto;
    padding-top: 58px;
    padding-bottom: 58px;
  }

  h1 {
    font-size: 42px;
  }

  h2 {
    font-size: 25px;
  }

  .summary-grid,
  .rule-grid,
  .score-grid,
  .stat-grid,
  .calendar-board,
  .hero-panel,
  .mini-grid {
    grid-template-columns: 1fr;
  }

  .calendar-month-wide {
    grid-column: auto;
  }

  .timeline li {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .timeline span {
    grid-column: auto;
  }

  .tab-list {
    width: 100%;
  }

  .tab-button {
    flex: 1 0 auto;
  }

  .callout {
    flex-direction: column;
    gap: 10px;
  }

  .callout-info > strong {
    flex-basis: auto;
  }

  .checklist-status {
    align-items: stretch;
    flex-direction: column;
  }

  .checklist-progress {
    width: 100%;
  }

  .hero-panel-top strong {
    font-size: 26px;
  }

  .extra-hero,
  .extra-title,
  .extra-inner {
    padding-inline: 20px;
  }

  .extra-hero {
    flex-direction: column;
  }

  .extra-title {
    align-items: flex-start;
  }

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

  .schedule-type-card {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .schedule-type-card strong {
    white-space: normal;
  }
}

@media (max-width: 480px) {
  .container,
  .narrow-container {
    width: min(100% - 28px, 1160px);
  }

  .button {
    width: 100%;
  }

  h1 {
    font-size: 38px;
  }

  .info-card,
  .rule-card,
  .timeline-card,
  .compare-card,
  .score-panel,
  .stat-card,
  .notice-box {
    padding: 22px;
  }

  .calendar-month {
    padding: 0;
  }

  .extra-inner h4 {
    font-size: 19px;
  }

  .extra-title h3 {
    font-size: 19px;
  }

  .responsive-table table {
    min-width: 640px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}