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

@property --angle {
  syntax: '<angle>';
  inherits: false;
  initial-value: 0deg;
}

:root {
  --bg: #0a0a0f;
  --surface: rgba(255, 255, 255, 0.045);
  --surface-strong: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.08);
  --text: #f1f1f4;
  --text-dim: rgba(241, 241, 244, 0.65);
  --color-from: #ffaa40;
  --color-to: #9c40ff;
  --particle-rgb: 160, 130, 255;
  --radius-lg: 24px;
  --radius-md: 16px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

:root[data-theme="light"] {
  --bg: #f5f5fa;
  --surface: rgba(10, 10, 20, 0.04);
  --surface-strong: rgba(10, 10, 20, 0.06);
  --border: rgba(10, 10, 20, 0.1);
  --text: #111116;
  --text-dim: rgba(17, 17, 22, 0.65);
  --particle-rgb: 120, 90, 220;
}

html {
  color-scheme: dark;
}
:root[data-theme="light"] {
  color-scheme: light;
}

body {
  min-height: 100vh;
  font-family: var(--font-sans);
  color: var(--text);
  background:
    radial-gradient(circle at 18% -10%, rgba(156, 64, 255, 0.25), transparent 55%),
    radial-gradient(circle at 92% 8%, rgba(255, 170, 64, 0.18), transparent 45%),
    var(--bg);
  overflow-x: hidden;
  transition: background-color 0.4s ease, color 0.4s ease;
}

.particles,
.flicker-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.meteors {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.meteor {
  position: absolute;
  top: -10%;
  width: 2px;
  height: 2px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1);
  animation-name: meteor-fall;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
}
.meteor::before {
  content: "";
  position: absolute;
  top: 50%;
  right: 0;
  width: 60px;
  height: 1px;
  transform: translateY(-50%);
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.6), transparent);
}

/* Navigation */
.topnav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 24px;
  background: rgba(10, 10, 15, 0.55);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  border-bottom: 1px solid var(--border);
}
:root[data-theme="light"] .topnav {
  background: rgba(255, 255, 255, 0.6);
}

.topnav__brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

/* Bandeau défilant */
.marquee {
  position: relative;
  z-index: 1;
  overflow: hidden;
  padding: 8px 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee__track {
  display: flex;
  gap: 40px;
  width: max-content;
  white-space: nowrap;
  font-size: 12px;
  color: var(--text-dim);
  animation: marquee-scroll 32s linear infinite;
}
.marquee:hover .marquee__track {
  animation-play-state: paused;
}

/* Dock flottant */
.dock {
  position: fixed;
  bottom: 20px;
  left: 50%;
  z-index: 30;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px;
  border-radius: 20px;
  background: var(--surface-strong);
  border: 1px solid var(--border);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  box-shadow: 0 20px 40px -20px rgba(0, 0, 0, 0.6);
}

.dock__icon {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, background-color 0.25s ease;
}
.dock__icon:hover {
  background: var(--surface);
}

.lang-btn.is-active {
  color: #fff;
  background: linear-gradient(90deg, var(--color-from), var(--color-to));
}

/* Hero */
main {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
  padding: 64px 24px 40px;
  text-align: center;
}

.hero-title {
  font-size: clamp(26px, 5vw, 44px);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 12px;
}

.gradient-text {
  background: linear-gradient(90deg, var(--color-from), var(--color-to), var(--color-from));
  background-size: 300% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: gradient-shift 6s linear infinite;
}

.hero-sub {
  color: var(--text-dim);
  font-size: 16px;
  margin-bottom: 40px;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.hero-sub.is-swapping {
  opacity: 0;
  transform: translateY(-6px);
}

/* Progress ring */
.progress-ring {
  position: relative;
  width: 132px;
  height: 132px;
  margin: 0 auto 36px;
  animation: fade-up 0.7s ease-out both;
  animation-delay: 120ms;
}
.progress-ring svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}
.progress-ring__track {
  fill: none;
  stroke: var(--border);
  stroke-width: 8;
}
.progress-ring__value {
  fill: none;
  stroke: url(#ring-gradient);
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 364.4;
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 0.6s ease;
}
.progress-ring.is-critical .progress-ring__value {
  stroke: #ff8080;
}
.progress-ring__center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
}
.progress-ring__center span {
  font-size: 22px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}
.progress-ring__center small {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

/* Countdown card */
.countdown-card {
  position: relative;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 32px 20px;
  box-shadow: 0 20px 60px -25px rgba(0, 0, 0, 0.55);
  transition: border-color 0.4s ease, background-color 0.4s ease;
}

.countdown-card.is-expired {
  border-color: rgba(255, 96, 96, 0.5);
  background: rgba(255, 60, 60, 0.08);
}
.countdown-card.is-expired .countdown-grid {
  display: none;
}

.card-spotlight {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  background: radial-gradient(220px circle at var(--spot-x, 50%) var(--spot-y, 50%), rgba(156, 64, 255, 0.28), transparent 70%);
}
.countdown-card:hover .card-spotlight {
  opacity: 1;
}

.border-beam {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 2px;
  pointer-events: none;
  background: conic-gradient(from var(--angle), transparent 0deg, var(--color-from) 40deg, var(--color-to) 100deg, transparent 160deg, transparent 360deg);
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: beam-rotate 5s linear infinite;
  filter: drop-shadow(0 0 6px rgba(156, 64, 255, 0.55));
}

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

.unit-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 18px 8px;
  border-radius: var(--radius-md);
  background: var(--surface-strong);
  border: 1px solid var(--border);
  animation: fade-up 0.6s ease-out both;
  animation-delay: calc(var(--delay, 0) * 90ms + 150ms);
  transition: transform 0.25s ease;
}
.unit-card:hover {
  transform: translateY(-4px);
}
.unit-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  opacity: 0;
  pointer-events: none;
  background-image: radial-gradient(transparent, transparent, var(--color-to), var(--color-from), transparent, transparent);
  background-size: 300% 300%;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: shine-sweep 8s linear infinite;
  transition: opacity 0.3s ease;
}
.unit-card:hover::before {
  opacity: 1;
}

.unit-value {
  font-size: clamp(26px, 6vw, 40px);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.digit-cell {
  position: relative;
  display: inline-block;
  overflow: hidden;
  height: 1.05em;
  width: 0.66ch;
  vertical-align: top;
}
.digit-cell .digit-old,
.digit-cell .digit-new {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.35s ease;
}
.digit-cell .digit-old {
  transform: translateY(0);
  opacity: 1;
}
.digit-cell .digit-new {
  transform: translateY(100%);
  opacity: 0;
}
.digit-cell.is-rolling .digit-old {
  transform: translateY(-100%);
  opacity: 0;
}
.digit-cell.is-rolling .digit-new {
  transform: translateY(0);
  opacity: 1;
}

.unit-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

.expired-message {
  margin-top: 20px;
  font-size: 20px;
  font-weight: 700;
  color: #ff8080;
  animation: fade-up 0.5s ease-out both;
}

.jptext {
  margin-top: 28px;
  font-size: 15px;
  color: var(--text-dim);
  animation: fade-up 0.7s ease-out both;
  animation-delay: 240ms;
}

.hero-title,
.hero-sub,
.countdown-card {
  animation: fade-up 0.7s ease-out both;
}
.hero-sub {
  animation-delay: 80ms;
}
.countdown-card {
  animation-delay: 160ms;
}

.timeline {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 28px;
  animation: fade-up 0.7s ease-out both;
  animation-delay: 200ms;
}
.timeline__label {
  font-size: 11px;
  color: var(--text-dim);
  white-space: nowrap;
}
.timeline__track {
  position: relative;
  flex: 1;
  height: 6px;
  border-radius: 999px;
  background: var(--surface-strong);
  border: 1px solid var(--border);
  overflow: visible;
}
.timeline__fill {
  position: absolute;
  inset: 0;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--color-from), var(--color-to));
  transition: width 0.6s ease;
}
.timeline__dot {
  position: absolute;
  top: 50%;
  left: 0%;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-to);
  box-shadow: 0 0 10px 2px rgba(156, 64, 255, 0.6);
  transform: translate(-50%, -50%);
  transition: left 0.6s ease;
}

/* Confetti + toast */
.confetti-piece {
  position: fixed;
  top: 0;
  left: 0;
  width: 7px;
  height: 12px;
  pointer-events: none;
  z-index: 40;
  animation: confetti-burst 1s ease-out forwards;
}

.milestone-toast {
  position: fixed;
  top: 84px;
  left: 50%;
  z-index: 40;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--surface-strong);
  border: 1px solid var(--border);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  font-size: 13px;
  font-weight: 600;
  animation: toast-in-out 3s ease-out forwards;
}

/* Panneau de réglages */
.settings-overlay {
  position: fixed;
  inset: 0;
  z-index: 49;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
  animation: fade-up 0.25s ease-out both;
}

.settings-panel[hidden] {
  display: none;
}
.settings-panel {
  position: fixed;
  top: 50%;
  left: 50%;
  z-index: 50;
  width: min(320px, calc(100vw - 48px));
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 24px;
  border-radius: var(--radius-lg);
  background: var(--bg);
  border: 1px solid var(--border);
  box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.7);
  animation: fade-up 0.3s ease-out both;
}
.settings-panel h2 {
  font-size: 18px;
}

.settings-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--text-dim);
}
.settings-field input {
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface-strong);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
}

.settings-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 4px;
}
.settings-btn {
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.settings-btn--ghost {
  background: transparent;
  color: var(--text-dim);
}
.settings-btn--primary {
  color: #fff;
  border: none;
  background: linear-gradient(90deg, var(--color-from), var(--color-to));
}

.site-footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 24px 24px 96px;
  color: var(--text-dim);
  font-size: 13px;
}

/* Keyframes */
@keyframes gradient-shift {
  to {
    background-position: 300% 0;
  }
}
@keyframes beam-rotate {
  to {
    --angle: 360deg;
  }
}
@keyframes shine-sweep {
  to {
    background-position: 300% 300%;
  }
}
@keyframes meteor-fall {
  0% {
    transform: rotate(215deg) translateX(0);
    opacity: 1;
  }
  70% {
    opacity: 1;
  }
  100% {
    transform: rotate(215deg) translateX(-500px);
    opacity: 0;
  }
}
@keyframes marquee-scroll {
  to {
    transform: translateX(-50%);
  }
}
@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(16px);
    filter: blur(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}
@keyframes confetti-burst {
  0% {
    transform: translate(-50%, -50%) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translate(calc(-50% + var(--tx)), calc(-50% + var(--ty))) rotate(var(--rot));
    opacity: 0;
  }
}
@keyframes toast-in-out {
  0% {
    opacity: 0;
    transform: translate(-50%, -8px);
  }
  12%,
  82% {
    opacity: 1;
    transform: translate(-50%, 0);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -8px);
  }
}

@media (max-width: 640px) {
  .topnav {
    padding: 12px 16px;
  }
  .countdown-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  main {
    padding: 48px 16px 32px;
  }
  .progress-ring {
    width: 108px;
    height: 108px;
  }
  .timeline__label {
    font-size: 10px;
  }
  .dock {
    gap: 4px;
    padding: 6px;
  }
  .dock__icon {
    width: 36px;
    height: 36px;
    font-size: 12px;
  }
  .marquee__track {
    gap: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}