:root {
  --bg: #fafaf9;
  --bg-alt: #f4f4f2;
  --paper: #ffffff;
  --ink: #18181b;
  --ink-soft: #3f3f46;
  --ink-mute: #71717a;
  --ink-faint: #a1a1aa;
  --rule: #d4d4d8;
  --rule-soft: #e4e4e7;
  --sans: 'IBM Plex Sans', -apple-system, system-ui, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "ss01", "cv10";
}

/* ============ HEADER ============ */
header.site {
  border-bottom: 1px solid var(--rule);
  background: #b7ffde;
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav {
  max-width: 960px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.brand {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 14px;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.year {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-mute);
  letter-spacing: 0.04em;
}

/* ============ MAIN CONTAINER ============ */
main {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

main > section {
  padding: 64px 0;
  border-bottom: 1px solid var(--rule-soft);
}
main > section:last-child { border-bottom: none; }

@media (max-width: 700px) {
  main > section { padding: 48px 0; }
  .nav { padding: 14px 20px; }
  main { padding: 0 20px; }
}

h1, h2, h3 {
  font-family: var(--sans);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--ink);
}

h1 {
  font-size: clamp(24px, 3.5vw, 32px);
  line-height: 1.2;
  margin-bottom: 28px;
  font-weight: 600;
}

h2 {
  font-size: clamp(22px, 3vw, 28px);
  line-height: 1.2;
  margin-bottom: 16px;
  font-weight: 600;
}

h3 {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}

.section-intro {
  color: var(--ink-soft);
  margin-bottom: 32px;
  max-width: 640px;
}

/* ============ HERO ============ */
.hero {
  text-align: left;
  padding: 72px 0 48px !important;
  border-bottom: 1px solid var(--rule) !important;
}
.hero-label {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-mute);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.hero-name {
  font-family: var(--sans);
  font-weight: 600;
  font-size: clamp(36px, 6vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.035em;
  margin-bottom: 16px;
  color: var(--ink);
}
.hero-date {
  font-family: var(--mono);
  font-size: clamp(16px, 2vw, 20px);
  color: var(--ink-soft);
  font-weight: 400;
  margin-bottom: 28px;
  font-variant-numeric: tabular-nums;
}
.hero-count {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 18px;
  background: var(--ink);
  color: var(--bg);
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}
.hero-count #next-days {
  font-size: 22px;
  font-weight: 600;
}
.hero-count .unit {
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--ink-faint);
}

/* ============ YEAR PROGRESS ============ */
.progress-section {
  padding: 32px 0 !important;
  border-bottom: 1px solid var(--rule-soft) !important;
}
.progress-label {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-mute);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 10px;
  font-variant-numeric: tabular-nums;
}
.progress-track {
  height: 2px;
  background: var(--rule-soft);
  position: relative;
}
.progress-fill {
  position: absolute;
  top: 0; left: 0;
  height: 100%;
  background: var(--ink);
  width: 0%;
  transition: width 600ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============ HOLIDAYS TABLE ============ */
.holidays {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}
.holidays thead {
  border-bottom: 1px solid var(--ink);
}
.holidays th {
  text-align: left;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
  padding: 10px 16px 10px 0;
}
.holidays td
 {
    padding: 8px 4px;
    border-bottom: 1px solid var(--rule-soft);
    vertical-align: baseline;
}
.holidays tr:last-child td { border-bottom: none; }

.col-date {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  width: 80px;
  white-space: nowrap;
}
.col-day {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-soft);
  width: 100px;
}
.col-name {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
}
.col-note {
  font-family: var(--sans);
  font-size: 13px;
  color: var(--ink-mute);
  text-align: right;
}

.holidays tr[data-weekend="true"] .col-day,
.holidays tr[data-weekend="true"] .col-name,
.holidays tr[data-weekend="true"] .col-date {
  color: var(--ink-faint);
}
.holidays tr[data-sunday="true"] .col-note {
  color: var(--ink-soft);
  font-weight: 500;
}

/* Highlighted row : next upcoming holiday */
.holidays tr.is-next td {
  background: var(--ink);
  color: var(--bg);
  font-weight: 500;
}
.holidays tr.is-next .col-day,
.holidays tr.is-next .col-note {
  color: var(--ink-faint);
}
.holidays tr.is-next .col-date {
  color: var(--bg);
}

/* Past holidays : de-emphasized */
.holidays tr.is-past td {
  opacity: 0.5;
}

@media (max-width: 700px) {
  .holidays thead { display: none; }
  .holidays tr {
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-areas:
      "date name"
      "day  note";
    gap: 4px 16px;
    padding: 14px 0;
    border-bottom: 1px solid var(--rule-soft);
  }
  .holidays td {
    border: none !important;
    padding: 0 !important;
  }
  .col-date { grid-area: date; }
  .col-day  { grid-area: day; font-size: 12px; }
  .col-name { grid-area: name; }
  .col-note { grid-area: note; text-align: left; font-size: 12px; }
  .holidays tr.is-next { padding: 14px; margin: 0 -14px; }
}

.list-note {
  margin-top: 20px;
  font-size: 12px;
  color: var(--ink-mute);
  max-width: 640px;
}

/* ============ BRIDGES ============ */
.bridges {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
@media (max-width: 600px) {
  .bridges { grid-template-columns: 1fr; }
}

.bridge {
  background: var(--paper);
  padding: 24px;
  display: grid;
  grid-template-columns: auto auto;
  grid-template-areas:
    "cost result"
    "name name"
    "detail detail";
  gap: 4px 16px;
  align-items: baseline;
}

.bridge-cost {
  grid-area: cost;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.bridge-result {
  grid-area: result;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-align: right;
  font-weight: 600;
}
.bridge-cost .n, .bridge-result .n {
  font-size: 20px;
  font-weight: 500;
  margin-right: 2px;
}
.bridge-name {
  grid-area: name;
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  margin-top: 10px;
  letter-spacing: -0.01em;
}
.bridge-detail {
  grid-area: detail;
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.5;
  margin-top: 4px;
}
.bridge-detail strong { color: var(--ink); font-weight: 500; }

.bridge.bridge-hero {
  background: var(--ink);
  color: var(--bg);
}
.bridge-hero .bridge-cost,
.bridge-hero .bridge-detail { color: var(--ink-faint); }
.bridge-hero .bridge-result,
.bridge-hero .bridge-name { color: var(--bg); }
.bridge-hero .bridge-detail strong { color: var(--bg); }

/* ============ SCHOOL HOLIDAYS ============ */
.school-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
@media (max-width: 600px) {
  .school-grid { grid-template-columns: 1fr; gap: 32px; }
}

.school-list {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px 20px;
  font-family: var(--mono);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}
.school-list dt {
  font-weight: 500;
  color: var(--ink);
  white-space: nowrap;
}
.school-list dd {
  color: var(--ink-soft);
}
.school-note {
  color: var(--ink-mute);
  font-size: 11px;
  font-style: normal;
  margin-left: 4px;
}

/* ============ FAQ ============ */
.faq details {
  border-bottom: 1px solid var(--rule-soft);
  padding: 18px 0;
}
.faq details:first-child { border-top: 1px solid var(--rule); }
.faq details:last-child { border-bottom: 1px solid var(--rule); }
.faq summary {
  font-weight: 500;
  font-size: 15px;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  letter-spacing: -0.005em;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: '+';
  font-family: var(--mono);
  font-weight: 400;
  font-size: 20px;
  color: var(--ink-mute);
  line-height: 0.7;
  flex-shrink: 0;
  transition: transform 0.15s;
}
.faq details[open] summary::after {
  content: '−';
  color: var(--ink);
}
.faq details p {
  margin-top: 14px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.6;
  max-width: 720px;
}

/* ============ FOOTER ============ */
footer {
  border-top: 1px solid var(--ink);
  background: var(--bg);
  margin-top: 40px;
  padding: 40px 24px;
}
.foot {
  max-width: 960px;
  margin: 0 auto;
}
.foot-main {
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 24px;
  max-width: 680px;
}
.foot-main a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--ink);
  font-weight: 500;
}
.foot-main a:hover {
  color: var(--ink-soft);
  border-bottom-color: var(--ink-soft);
}
.foot-meta {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--ink-mute);
  padding-top: 24px;
  border-top: 1px solid var(--rule-soft);
}

/* ============ PRINT ============ */
@media print {
  header.site, .hero, .progress-section, .bridges-section, .school-section, .faq-section, footer { display: none !important; }
  .list-section { padding: 0 !important; }
  main { max-width: 100% !important; padding: 0 !important; }
  body { font-size: 11pt; }
  h1 { font-size: 16pt; }
  .holidays tr.is-next td {
    background: none !important;
    color: var(--ink) !important;
    font-weight: 700 !important;
  }
  .holidays tr.is-past td { opacity: 1 !important; }
}

/* ============ LINKS (generic) ============ */
a {
  color: var(--ink);
}
a[rel="external"] {
  border-bottom: 1px solid var(--rule);
  text-decoration: none;
}
a[rel="external"]:hover {
  border-bottom-color: var(--ink);
}