:root {
  --bg: #e7eef2;
  --bg-deep: #d5e2ea;
  --ink: #0b1f2a;
  --ink-soft: #4a6470;
  --line: rgba(11, 31, 42, 0.14);
  --panel: rgba(255, 255, 255, 0.55);
  --panel-strong: rgba(255, 255, 255, 0.78);
  --accent: #b8f34a;
  --accent-ink: #163018;
  --signal: #0f7a8a;
  --clock: #071820;
  --clock-text: #e8f2f6;
  --ok: #7dcf6a;
  --warn: #e2b04a;
  --radius: 4px;
  --display: "Bricolage Grotesque", "Arial Narrow", sans-serif;
  --sans: "Manrope", "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--sans);
  font-size: 1.05rem;
  line-height: 1.55;
  overflow-x: hidden;
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(900px 520px at 12% -8%, #f4fbff 0%, transparent 55%),
    radial-gradient(720px 480px at 92% 8%, #c9ebf0 0%, transparent 50%),
    radial-gradient(700px 500px at 70% 90%, #d7f0c8 0%, transparent 45%),
    linear-gradient(165deg, #eaf2f6 0%, #dce8ef 48%, #e4edf1 100%);
}
.atmosphere::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(11, 31, 42, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 31, 42, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, #000 35%, transparent 80%);
}
.atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: 0;
  transform: translateY(-160%);
  background: var(--ink);
  color: #fff;
  padding: 0.55rem 0.85rem;
  z-index: 30;
  text-decoration: none;
}
.skip-link:focus { transform: none; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(231, 238, 242, 0.78);
  backdrop-filter: blur(14px) saturate(1.2);
}
.topbar__inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0.85rem 1.35rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.jump {
  display: flex;
  gap: 0.15rem 1.1rem;
  flex-wrap: wrap;
}
.jump a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  position: relative;
}
.jump a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.2rem;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.28s var(--ease);
}
.jump a:hover { color: var(--ink); }
.jump a:hover::after { transform: scaleX(1); }

.state-picker {
  display: grid;
  gap: 0.18rem;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-weight: 700;
}
.state-picker select {
  appearance: none;
  font: 600 0.95rem var(--sans);
  color: var(--ink);
  background:
    linear-gradient(180deg, #fff, #f3f8fa) padding-box,
    linear-gradient(135deg, var(--signal), var(--accent)) border-box;
  border: 1.5px solid transparent;
  border-radius: var(--radius);
  padding: 0.5rem 2.2rem 0.5rem 0.85rem;
  min-width: 15rem;
  cursor: pointer;
  background-image:
    linear-gradient(180deg, #fff, #f3f8fa),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%230b1f2a' stroke-width='1.6'/%3E%3C/svg%3E");
  background-repeat: no-repeat, no-repeat;
  background-position: 0 0, right 0.8rem center;
  background-size: 100% 100%, 12px;
  transition: transform 0.2s var(--ease);
}
.state-picker select:hover { transform: translateY(-1px); }

.state-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.2rem;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0.7rem 1.35rem 0.85rem;
  border-top: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(184, 243, 74, 0.22), rgba(201, 235, 240, 0.35));
  animation: rise 0.45s var(--ease) both;
}
.state-banner[hidden] { display: none; }
.state-banner p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--ink);
}
.state-banner__hint {
  color: var(--ink-soft);
  font-size: 0.88rem;
}
.state-banner__actions {
  display: flex;
  gap: 0.5rem;
}
.state-banner__ok,
.state-banner__change {
  font: 700 0.88rem var(--sans);
  border-radius: var(--radius);
  padding: 0.4rem 0.85rem;
  cursor: pointer;
  transition: transform 0.2s var(--ease), background 0.2s ease;
}
.state-banner__ok {
  border: none;
  background: var(--ink);
  color: var(--accent);
}
.state-banner__change {
  border: 1.5px solid var(--ink);
  background: transparent;
  color: var(--ink);
}
.state-banner__ok:hover,
.state-banner__change:hover { transform: translateY(-1px); }

main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 1.5rem 1.35rem 4rem;
}

.brand {
  margin: 0 0 1rem;
  font-family: var(--display);
  font-size: clamp(2.8rem, 8vw, 5.4rem);
  font-weight: 800;
  letter-spacing: -0.055em;
  line-height: 0.92;
  animation: rise 0.8s var(--ease) both;
}
.brand span {
  color: var(--signal);
  position: relative;
}
.brand span::after {
  content: "";
  display: inline-block;
  width: 0.22em;
  height: 0.22em;
  margin-left: 0.08em;
  margin-bottom: 0.18em;
  background: var(--accent);
  border-radius: 50%;
  vertical-align: baseline;
  animation: blink 2.4s ease-in-out infinite;
}

.hero {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 1.5rem 2rem;
  align-items: end;
  min-height: min(78vh, 760px);
  padding-bottom: 0.5rem;
}
.hero__copy {
  padding: 1.2rem 0 1.5rem;
  animation: rise 0.85s var(--ease) 0.08s both;
}
.hero h1 {
  margin: 0 0 0.85rem;
  font-family: var(--display);
  font-size: clamp(1.55rem, 3.2vw, 2.35rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.12;
  max-width: 16ch;
}
.lede {
  margin: 0;
  color: var(--ink-soft);
  max-width: 34rem;
  font-size: 1.08rem;
}
.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font: 700 0.95rem var(--sans);
  padding: 0.72rem 1.15rem;
  border-radius: var(--radius);
  transition: transform 0.2s var(--ease), background 0.2s ease, color 0.2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--solid {
  background: var(--ink);
  color: var(--accent);
}
.btn--solid:hover { background: #123041; }
.btn--ghost {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--ink);
}
.btn--ghost:hover { background: rgba(255, 255, 255, 0.45); }

.clock-stage {
  position: relative;
  background: var(--clock);
  color: var(--clock-text);
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 420px;
  display: flex;
  align-items: center;
  animation: rise 0.9s var(--ease) 0.15s both;
}
.clock-stage__glow {
  position: absolute;
  width: 320px;
  height: 320px;
  right: -50px;
  top: -80px;
  background: radial-gradient(circle, rgba(201, 235, 240, 0.16), transparent 70%);
  animation: drift 8s ease-in-out infinite alternate;
}
.clock-face {
  position: relative;
  z-index: 1;
  width: 100%;
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 1.1rem;
  align-items: center;
  padding: 1.5rem 1.4rem;
}

.dial { width: 100%; display: block; }
.dial__ring { fill: none; stroke: rgba(232, 242, 246, 0.22); stroke-width: 1.5; }
.dial__inner { fill: none; stroke: rgba(184, 243, 74, 0.18); stroke-width: 1; stroke-dasharray: 3 6; }
.dial-mark { stroke: rgba(232, 242, 246, 0.45); stroke-width: 1.5; }
.dial-mark--hour { stroke: #e8f2f6; stroke-width: 2.3; }
#hand-hour, #hand-minute { stroke: #e8f2f6; stroke-linecap: round; }
#hand-hour { stroke-width: 5; }
#hand-minute { stroke-width: 3.1; }
#hand-second { stroke: var(--accent); stroke-width: 1.7; stroke-linecap: round; }
.dial__hub { fill: var(--accent); }

.clock-readout__zone,
.clock-readout__utc,
.clock-status {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  color: rgba(232, 242, 246, 0.62);
}
.clock-readout__time {
  margin: 0.1rem 0 0;
  font-family: var(--mono);
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 500;
  letter-spacing: -0.05em;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.clock-readout__ms {
  margin: 0.35rem 0 0.7rem;
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--accent);
}
.clock-readout__date {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
  font-weight: 500;
}
.clock-status { margin-top: 0.85rem; }
.clock-status[data-state="ok"] { color: var(--ok); }
.clock-status[data-state="warn"] { color: var(--warn); }

.section-head {
  margin: 2.8rem 0 1.2rem;
}
.section-head h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.035em;
}

.kicker {
  margin: 0 0 0.4rem;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--signal);
  font-weight: 700;
}

.answers__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.answer {
  background: var(--panel-strong);
  padding: 1.45rem 1.4rem 1.55rem;
  transition: background 0.25s ease;
}
.answer:hover { background: #fff; }
.answer h3,
.fact h3 {
  margin: 0 0 0.85rem;
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink-soft);
}
.answer__value,
.fact__big {
  margin: 0.15rem 0 0.3rem;
  font-family: var(--display);
  font-size: clamp(1.7rem, 3vw, 2.35rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.1;
}
.fact__big--sm { font-size: 1.45rem; }
.answer__when,
.answer__count,
.fact__sub,
.fineprint {
  margin: 0.2rem 0;
  color: var(--ink-soft);
}
.answer__count {
  font-weight: 700;
  color: var(--signal);
  font-size: 1.02rem;
}
.text-link {
  display: inline-block;
  margin-top: 1rem;
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 0.05rem;
  transition: color 0.2s ease;
}
.text-link:hover { color: var(--signal); }

.facts__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem;
}
.fact {
  padding: 1.25rem 1.2rem 1.35rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.25s var(--ease), background 0.25s ease, border-color 0.25s ease;
}
.fact:hover {
  transform: translateY(-3px);
  background: var(--panel-strong);
  border-color: rgba(15, 122, 138, 0.35);
}

.year-bar {
  height: 6px;
  background: rgba(11, 31, 42, 0.08);
  margin: 0.85rem 0;
  border-radius: 99px;
  overflow: hidden;
}
.year-bar span {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--signal), var(--accent));
  transition: width 0.8s var(--ease);
}

.ghost-btn {
  margin-top: 0.9rem;
  border: 1.5px solid var(--ink);
  background: transparent;
  color: var(--ink);
  font: 700 0.88rem var(--sans);
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s var(--ease);
}
.ghost-btn:hover {
  background: rgba(184, 243, 74, 0.35);
  transform: translateY(-1px);
}

.moon-row {
  display: flex;
  gap: 0.95rem;
  align-items: center;
}
.moon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(145deg, #f2f6c8, #cfd8a4);
  box-shadow:
    inset -14px 0 0 0 #0b1f2a,
    0 0 0 1px rgba(11, 31, 42, 0.08);
  flex: none;
}

.lists {
  margin-top: 2.6rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.list-block {
  padding: 1.35rem 1.3rem 1.5rem;
  background: var(--panel-strong);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.list-block h2 {
  margin: 0;
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.timeline {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
}
.timeline li {
  display: grid;
  grid-template-columns: 7.2rem 1fr auto;
  gap: 0.75rem;
  padding: 0.78rem 0;
  border-top: 1px solid var(--line);
  align-items: baseline;
  transition: background 0.2s ease;
}
.timeline li:hover { background: rgba(184, 243, 74, 0.08); }
.timeline time {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--ink-soft);
}
.timeline .now {
  color: var(--signal);
  font-weight: 700;
  background: linear-gradient(90deg, rgba(184, 243, 74, 0.18), transparent);
}
.timeline .past { opacity: 0.4; }
.timeline small {
  display: block;
  margin-top: 0.15rem;
  color: var(--ink-soft);
  font-size: 0.85rem;
}

.footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 1.35rem 3.5rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
  border-top: 1px solid var(--line);
  padding-top: 1.8rem;
}
.footer__brand {
  margin: 0 0 0.35rem;
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.footer p { margin: 0 0 0.4rem; }
.footer__meta { max-width: 46rem; opacity: 0.9; }

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes blink {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.85); }
}
@keyframes drift {
  from { transform: translate(0, 0); }
  to { transform: translate(-24px, 18px); }
}

@media (max-width: 960px) {
  .hero,
  .answers__grid,
  .facts__grid,
  .lists,
  .clock-face {
    grid-template-columns: 1fr;
  }
  .hero { min-height: 0; gap: 1.1rem; }
  .hero h1 { max-width: none; }
  .clock-stage { min-height: 0; }
  .clock-face__dial { max-width: 200px; margin: 0 auto; }
  .topbar__inner { flex-direction: column; align-items: stretch; }
  .state-picker select { min-width: 0; width: 100%; }
  .timeline li { grid-template-columns: 1fr; gap: 0.2rem; }
  .facts__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 620px) {
  .facts__grid { grid-template-columns: 1fr; }
  .jump { gap: 0.75rem; }
  .brand { font-size: clamp(2.5rem, 14vw, 3.6rem); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .brand,
  .hero__copy,
  .clock-stage,
  .brand span,
  .clock-stage__glow,
  .fact {
    animation: none;
    transition: none;
  }
}