:root {
  --ink: #14181f;
  --ink-soft: rgba(20, 24, 31, 0.64);
  --ink-faint: rgba(20, 24, 31, 0.38);
  --face: #f7f4ef;
  --face-edge: #d9d2c8;
  --hand: #1a1f28;
  --second: #c45c3a;
  --elapsed: #c45c3a;
  --afterglow: #2f6f7a;
  --line: rgba(20, 24, 31, 0.12);
  --panel: rgba(255, 255, 255, 0.42);
  --sky-top: #d7e3ec;
  --sky-mid: #e8e0d6;
  --sky-bot: #d8cfc4;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --font-brand: "Syne", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Outfit", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html,
body {
  min-height: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--sky-mid);
  overflow-x: hidden;
  transition: color 0.8s ease, background 0.8s ease;
}

/* Spring / morning */
body.stage-morning,
body.season-spring {
  --sky-top: #b8d9c8;
  --sky-mid: #e8dcc4;
  --sky-bot: #f0c9a0;
  --season-accent: rgba(120, 180, 130, 0.35);
}

/* Summer / noon */
body.stage-noon,
body.season-summer {
  --sky-top: #7eb8e0;
  --sky-mid: #f2d090;
  --sky-bot: #ef9a48;
  --season-accent: rgba(255, 200, 80, 0.35);
}

/* Late summer → early autumn */
body.stage-afternoon,
body.season-late {
  --sky-top: #9ab0c0;
  --sky-mid: #e8b888;
  --sky-bot: #d07040;
  --season-accent: rgba(220, 140, 70, 0.3);
}

/* Autumn / dusk */
body.stage-dusk,
body.season-autumn {
  --sky-top: #3a4058;
  --sky-mid: #8a5a48;
  --sky-bot: #c86838;
  --ink: #f3ebe3;
  --ink-soft: rgba(243, 235, 227, 0.72);
  --ink-faint: rgba(243, 235, 227, 0.42);
  --face: #ece6dc;
  --face-edge: #cfc5b6;
  --hand: #1c222c;
  --line: rgba(243, 235, 227, 0.18);
  --panel: rgba(255, 255, 255, 0.08);
  --elapsed: #e2a86a;
  --afterglow: #8eb8c4;
  --season-accent: rgba(220, 120, 60, 0.35);
}

/* Winter / night */
body.stage-night,
body.season-winter {
  --sky-top: #0e1620;
  --sky-mid: #1a2838;
  --sky-bot: #3a4555;
  --ink: #ebe4da;
  --ink-soft: rgba(235, 228, 218, 0.7);
  --ink-faint: rgba(235, 228, 218, 0.4);
  --face: #e8e2d8;
  --face-edge: #c8bfb2;
  --line: rgba(235, 228, 218, 0.16);
  --panel: rgba(255, 255, 255, 0.06);
  --elapsed: #d4ae6a;
  --afterglow: #7aa8b6;
  --season-accent: rgba(180, 210, 240, 0.2);
}

.bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.bg-wash {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 0%, rgba(255, 255, 255, 0.45), transparent 55%),
    radial-gradient(ellipse 60% 45% at 90% 80%, var(--season-accent, rgba(196, 92, 58, 0.12)), transparent 55%),
    linear-gradient(180deg, var(--sky-top), var(--sky-mid) 48%, var(--sky-bot));
  transition: background 1.4s var(--ease);
}

.bg-season {
  position: absolute;
  inset: 0;
  opacity: 0.55;
  transition: background 1.4s var(--ease), opacity 1s ease;
  pointer-events: none;
}

body.season-spring .bg-season {
  background:
    radial-gradient(circle at 15% 70%, rgba(180, 220, 170, 0.35), transparent 28%),
    radial-gradient(circle at 85% 30%, rgba(255, 200, 210, 0.22), transparent 32%);
}

body.season-summer .bg-season {
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 240, 180, 0.45), transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(255, 160, 60, 0.2), transparent 35%);
}

body.season-late .bg-season {
  background:
    radial-gradient(circle at 30% 20%, rgba(255, 200, 140, 0.25), transparent 40%),
    radial-gradient(circle at 70% 90%, rgba(200, 90, 50, 0.22), transparent 40%);
}

body.season-autumn .bg-season {
  background:
    radial-gradient(circle at 20% 40%, rgba(255, 140, 70, 0.25), transparent 35%),
    radial-gradient(circle at 75% 70%, rgba(160, 60, 40, 0.3), transparent 40%);
}

body.season-winter .bg-season {
  background:
    radial-gradient(circle at 40% 20%, rgba(180, 210, 255, 0.18), transparent 40%),
    radial-gradient(circle at 60% 90%, rgba(100, 130, 160, 0.25), transparent 45%);
}

.season-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.7;
}

.bg-grain {
  position: absolute;
  inset: 0;
  opacity: 0.04;
  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='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.page {
  position: relative;
  z-index: 1;
  width: min(980px, calc(100% - 2rem));
  margin: 0 auto;
  min-height: 100vh;
  padding: clamp(1.75rem, 5vh, 3rem) 0 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero {
  text-align: center;
  max-width: 34rem;
  animation: up 0.8s var(--ease) both;
}

.brand {
  font-family: var(--font-brand);
  font-size: clamp(2.4rem, 6.5vw, 3.6rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.95;
  margin-bottom: 0.55rem;
}

.headline {
  font-size: clamp(1.05rem, 2.4vw, 1.3rem);
  font-weight: 400;
  margin-bottom: 0.55rem;
}

.lede {
  font-size: 0.92rem;
  font-weight: 300;
  color: var(--ink-soft);
  line-height: 1.6;
  margin-bottom: 1.15rem;
}

.compare {
  margin-top: 1.1rem;
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
  text-align: center;
}

.season-tag {
  margin-top: 0.35rem;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--ink-faint);
  text-align: center;
}

/* Random background themes (override wash via data-bg) */
body[data-bg="0"] { --sky-top: #b8d9c8; --sky-mid: #e8dcc4; --sky-bot: #f0c9a0; }
body[data-bg="1"] { --sky-top: #6a9bc2; --sky-mid: #d4b896; --sky-bot: #c47a4a; }
body[data-bg="2"] { --sky-top: #c4a8c8; --sky-mid: #e8c4b0; --sky-bot: #d88868; }
body[data-bg="3"] { --sky-top: #4a7a8a; --sky-mid: #b8c8a0; --sky-bot: #e0b070; }
body[data-bg="4"] { --sky-top: #2a3048; --sky-mid: #6a4a58; --sky-bot: #c07050; --ink: #f3ebe3; --ink-soft: rgba(243,235,227,0.72); --ink-faint: rgba(243,235,227,0.42); --line: rgba(243,235,227,0.18); --panel: rgba(255,255,255,0.08); --face: #ece6dc; --elapsed: #e2a86a; --afterglow: #8eb8c4; }
body[data-bg="5"] { --sky-top: #1a2838; --sky-mid: #3a5068; --sky-bot: #8a7060; --ink: #ebe4da; --ink-soft: rgba(235,228,218,0.7); --ink-faint: rgba(235,228,218,0.4); --line: rgba(235,228,218,0.16); --panel: rgba(255,255,255,0.06); --face: #e8e2d8; --elapsed: #d4ae6a; --afterglow: #7aa8b6; }
body[data-bg="6"] { --sky-top: #e8d0b0; --sky-mid: #f0b888; --sky-bot: #d06048; }
body[data-bg="7"] { --sky-top: #88b8a8; --sky-mid: #d0c8b0; --sky-bot: #a88870; }

.star-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease;
  pointer-events: none;
}

body.show-stars .star-canvas {
  opacity: 1;
}

body.show-stars .season-canvas {
  opacity: 0.25;
}

.progress-wrap {
  position: relative;
  width: 120px;
  height: 120px;
  margin: 1rem auto 0.25rem;
}

.progress-ring {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.progress-track {
  fill: none;
  stroke: rgba(20, 24, 31, 0.1);
  stroke-width: 6;
}

body.stage-dusk .progress-track,
body.stage-night .progress-track,
body[data-bg="4"] .progress-track,
body[data-bg="5"] .progress-track {
  stroke: rgba(243, 235, 227, 0.12);
}

.progress-elapsed {
  fill: none;
  stroke: var(--elapsed);
  stroke-width: 6;
  stroke-linecap: round;
  stroke-dasharray: 326.73;
  stroke-dashoffset: 326.73;
  transition: stroke-dashoffset 0.6s var(--ease);
}

.progress-remain {
  fill: none;
  stroke: var(--afterglow);
  stroke-width: 3.5;
  stroke-linecap: round;
  stroke-dasharray: 276.46;
  stroke-dashoffset: 276.46;
  opacity: 0.55;
  transition: stroke-dashoffset 0.6s var(--ease);
}

.progress-copy {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  pointer-events: none;
}

.progress-pct {
  font-family: var(--font-brand);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1;
}

.progress-sub {
  margin-top: 0.25rem;
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
}

.drag-face {
  cursor: grab;
  touch-action: none;
}

.drag-face.is-dragging {
  cursor: grabbing;
}

.drag-hint {
  margin-top: 0.35rem;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
  opacity: 0.8;
}

body.is-preview .drag-hint {
  color: var(--elapsed);
  opacity: 1;
}

body.is-preview .clocks {
  outline: 1px dashed rgba(196, 92, 58, 0.25);
  outline-offset: 8px;
}

body.is-mirror .clock-card.elapsed .kicker,
body.is-mirror .clock-card.afterglow .kicker {
  letter-spacing: 0.2em;
}

.poetry {
  width: min(440px, 100%);
  margin-top: 1.15rem;
  padding: 1rem 1.1rem 0.85rem;
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  text-align: center;
}

.poetry-label {
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 0.45rem;
}

.poetry-text {
  font-family: var(--font-brand);
  font-size: 1.05rem;
  font-weight: 500;
  line-height: 1.55;
  min-height: 2.6em;
  color: var(--ink);
  transition: opacity 0.4s ease, transform 0.45s var(--ease), filter 0.4s ease;
  transform: translateY(0);
  filter: blur(0);
}

.poetry-text.is-typing::after {
  content: "";
  display: inline-block;
  width: 0.08em;
  height: 1em;
  margin-left: 0.12em;
  background: var(--elapsed);
  vertical-align: -0.1em;
  animation: poetry-caret 0.85s steps(1) infinite;
}

.poetry-text.is-fading {
  opacity: 0;
  transform: translateY(8px);
  filter: blur(2px);
}

.poetry-text.is-holding {
  animation: poetry-hold 3.6s ease-in-out 1;
}

@keyframes poetry-hold {
  0%,
  100% {
    letter-spacing: 0.01em;
  }
  50% {
    letter-spacing: 0.04em;
  }
}

.poetry-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 0.55rem;
}

.poetry-refresh {
  border: none;
  background: transparent;
  color: var(--ink-soft);
  font: 500 0.78rem var(--font-body);
  letter-spacing: 0.1em;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.poetry-refresh:hover,
.poetry-refresh[aria-pressed="true"] {
  color: var(--elapsed);
}

@keyframes poetry-caret {
  0%,
  45% {
    opacity: 1;
  }
  50%,
  100% {
    opacity: 0;
  }
}

.form {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: stretch;
  background: var(--panel);
  border: 1px solid var(--line);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.ymd {
  display: flex;
  align-items: stretch;
}

.field {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.2rem;
  padding: 0.65rem 0.85rem;
  text-align: left;
}

.field-ymd {
  min-width: 4.5rem;
  border-right: 1px solid var(--line);
}

.field-ymd:last-child {
  border-right: none;
}

#birth-year {
  min-width: 5.2rem;
}

.label {
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.field select {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--ink);
  font: 500 1rem var(--font-body);
  outline: none;
  padding: 0.1rem 1rem 0 0;
  cursor: pointer;
  background-image: linear-gradient(45deg, transparent 50%, currentColor 50%),
    linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-position: calc(100% - 8px) 55%, calc(100% - 3px) 55%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  opacity: 0.95;
}

.field select option {
  color: #14181f;
  background: #f7f4ef;
}

body.stage-dusk .field select,
body.stage-night .field select,
body[data-bg="4"] .field select,
body[data-bg="5"] .field select {
  color: var(--ink);
}

.btn {
  border: none;
  border-left: 1px solid var(--line);
  background: var(--ink);
  color: #f6f1ea;
  font: 600 0.88rem/1 var(--font-body);
  letter-spacing: 0.1em;
  padding: 0 1.35rem;
  cursor: pointer;
  transition: letter-spacing 0.25s ease, background 0.25s ease;
}

.btn:hover {
  letter-spacing: 0.14em;
}

body.stage-dusk .btn,
body.stage-night .btn {
  background: #f2ebe2;
  color: #14181f;
}

.clocks {
  width: 100%;
  margin-top: clamp(1.25rem, 3vh, 2rem);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  opacity: 0.45;
  filter: grayscale(0.35);
  transform: translateY(10px);
  transition: opacity 0.8s var(--ease), filter 0.8s ease, transform 0.8s var(--ease);
}

.clocks[data-active="true"] {
  opacity: 1;
  filter: none;
  transform: none;
}

.clock-card {
  text-align: center;
}

.clock-head {
  margin-bottom: 0.85rem;
}

.kicker {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  margin-bottom: 0.3rem;
}

.elapsed .kicker {
  color: var(--elapsed);
}

.afterglow .kicker {
  color: var(--afterglow);
}

.digital {
  font-family: var(--font-brand);
  font-size: clamp(1.7rem, 4vw, 2.2rem);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.face-wrap {
  width: min(260px, 70vw);
  margin: 0 auto;
}

.face {
  width: 100%;
  height: auto;
  display: block;
  overflow: visible;
  filter: drop-shadow(0 18px 28px rgba(20, 24, 31, 0.12));
}

.dial {
  fill: var(--face);
  stroke: var(--face-edge);
  stroke-width: 2;
}

.dial-inner {
  fill: none;
  stroke: rgba(20, 24, 31, 0.06);
  stroke-width: 1;
}

.tick {
  stroke: rgba(20, 24, 31, 0.35);
  stroke-width: 1.5;
  stroke-linecap: round;
}

.tick.major {
  stroke: rgba(20, 24, 31, 0.55);
  stroke-width: 2;
}

.hour-label {
  fill: rgba(20, 24, 31, 0.55);
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 600;
  text-anchor: middle;
  dominant-baseline: middle;
}

.hand {
  stroke: var(--hand);
  stroke-linecap: round;
}

.hand.hour {
  stroke-width: 4.5;
}

.hand.minute {
  stroke-width: 3;
}

.hand.second {
  stroke: var(--second);
  stroke-width: 1.5;
}

.afterglow .hand.second {
  stroke: var(--afterglow);
}

.hub {
  fill: var(--hand);
}

.milestone-dot {
  fill: rgba(196, 92, 58, 0.35);
  stroke: rgba(196, 92, 58, 0.55);
  stroke-width: 1;
  transition: fill 0.4s ease;
}

.milestone-dot.passed {
  fill: #c45c3a;
  filter: url(#glow);
}

.milestone-dot.lit {
  fill: #ff8a4a;
}

body.stage-dusk .milestone-dot.passed,
body.stage-night .milestone-dot.passed {
  fill: #e2a86a;
}

.meta {
  margin-top: 0.9rem;
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--ink-soft);
  min-height: 1.4em;
}

.milestone-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35rem 0.65rem;
  margin-top: 0.65rem;
  max-width: 16rem;
  margin-left: auto;
  margin-right: auto;
}

.milestone-list li {
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  padding: 0.15rem 0;
}

.milestone-list li.passed {
  color: var(--elapsed);
}

.milestone-list li.lit {
  color: var(--elapsed);
  font-weight: 600;
}

.bridge {
  display: none;
}

.caption {
  margin-top: 1.5rem;
  text-align: center;
  font-size: 0.95rem;
  color: var(--ink-soft);
  letter-spacing: 0.03em;
  min-height: 1.4em;
}

.note-box {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  width: min(420px, 100%);
  margin-top: 1rem;
  text-align: left;
}

.note-label {
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.note-box textarea {
  width: 100%;
  resize: vertical;
  min-height: 3.2rem;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  font: 400 0.95rem/1.5 var(--font-body);
  padding: 0.75rem 0.9rem;
  outline: none;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color 0.25s ease;
}

.note-box textarea:focus {
  border-color: var(--elapsed);
}

.note-box textarea::placeholder {
  color: var(--ink-faint);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.65rem;
  margin-top: 1.15rem;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  font: 500 0.82rem/1 var(--font-body);
  letter-spacing: 0.06em;
  padding: 0.7rem 1rem;
  cursor: pointer;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s var(--ease);
}

.action-btn:hover {
  transform: translateY(-1px);
  border-color: rgba(20, 24, 31, 0.28);
}

.action-btn[aria-pressed="true"] {
  border-color: var(--elapsed);
  color: var(--elapsed);
}

.action-ico {
  font-size: 0.95rem;
  opacity: 0.8;
}

body.is-playing .caption {
  letter-spacing: 0.12em;
}

.foot {
  margin-top: auto;
  padding-top: 2rem;
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  text-align: center;
}

@keyframes up {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 760px) {
  .clocks {
    grid-template-columns: 1fr auto 1fr;
    align-items: start;
    gap: 1rem 1.5rem;
  }

  .bridge {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    padding-top: 5.5rem;
  }

  .bridge-line {
    width: 1px;
    height: 2.5rem;
    background: linear-gradient(180deg, transparent, var(--ink-faint), transparent);
  }

  .bridge-label {
    writing-mode: vertical-rl;
    letter-spacing: 0.28em;
    font-size: 0.72rem;
    color: var(--ink-faint);
  }

  .face-wrap {
    width: min(280px, 100%);
  }
}

@media (max-width: 759px) {
  .form {
    width: 100%;
    flex-direction: column;
  }

  .ymd {
    width: 100%;
  }

  .field-ymd {
    flex: 1;
  }

  .btn {
    border-left: none;
    border-top: 1px solid var(--line);
    padding: 0.95rem;
  }

  .bridge {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
  }

  .bridge-line {
    width: 2rem;
    height: 1px;
    background: var(--ink-faint);
  }

  .bridge-label {
    font-size: 0.72rem;
    letter-spacing: 0.22em;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}