:root {
  color-scheme: dark;
  --paper: #f6f0e5;
  --ink: #171511;
  --muted: #b8b1a7;
  --accent: #d89968;
  --glass: rgba(12, 11, 9, 0.7);
  --transition: 1600ms;
}

* {
  box-sizing: border-box;
}

html,
body,
.app,
.stage {
  width: 100%;
  min-height: 100%;
  margin: 0;
}

body {
  overflow: hidden;
  background: #070706;
  color: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
select,
input {
  font: inherit;
}

button {
  color: inherit;
}

.stage {
  position: fixed;
  inset: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 30% 20%, #28221c 0, transparent 40%),
    #070706;
}

.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  will-change: opacity;
  transition: opacity var(--transition) ease-in-out;
  user-select: none;
}

.slide-photo,
.slide-video,
.slide-backdrop {
  position: absolute;
  object-position: 50% 50%;
  pointer-events: none;
  user-select: none;
}

.slide-video {
  display: none;
  inset: 2%;
  width: 96%;
  height: 96%;
  z-index: 2;
  object-fit: contain;
  object-position: center;
  filter: drop-shadow(0 16px 35px rgba(0, 0, 0, 0.38));
  background: transparent;
}

.slide.is-video .slide-photo {
  display: none;
}

.slide.is-video .slide-video {
  display: block;
}

.slide.is-video .slide-backdrop {
  opacity: 1;
}

.video-badge {
  position: absolute;
  z-index: 3;
  top: max(92px, calc(env(safe-area-inset-top) + 72px));
  right: max(24px, env(safe-area-inset-right));
  display: none;
  padding: 7px 11px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 999px;
  background: rgba(8, 7, 6, 0.58);
  color: var(--paper);
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  backdrop-filter: blur(12px);
}

.slide.is-video .video-badge {
  display: block;
}

.slide-photo {
  inset: -2%;
  width: 104%;
  height: 104%;
  z-index: 2;
  object-fit: cover;
  will-change: transform;
}

.slide-backdrop {
  inset: -7%;
  width: 114%;
  height: 114%;
  z-index: 1;
  object-fit: cover;
  opacity: 0;
  filter: blur(32px) brightness(0.55) saturate(0.8);
  transform: scale(1.08);
  transition: opacity 500ms ease;
}

.slide.is-contained .slide-photo {
  inset: 2%;
  width: 96%;
  height: 96%;
  object-fit: contain;
  filter: drop-shadow(0 16px 35px rgba(0, 0, 0, 0.38));
}

.slide.is-contained .slide-backdrop {
  opacity: 1;
}

.slide.is-active {
  z-index: 2;
  opacity: 1;
}

.slide.is-active .slide-photo {
  animation: ken-burns var(--slide-duration) linear both;
}

.slide.is-active .slide-backdrop {
  animation: backdrop-drift var(--slide-duration) linear both;
}

.slide.is-leaving {
  z-index: 1;
  opacity: 0;
}

.slide.is-paused .slide-photo,
.slide.is-paused .slide-backdrop {
  animation-play-state: paused;
}

@keyframes ken-burns {
  from {
    transform: scale(var(--scale-start));
    transform-origin: var(--origin-start);
  }
  to {
    transform: scale(var(--scale-end));
    transform-origin: var(--origin-end);
  }
}

@keyframes backdrop-drift {
  from {
    transform: scale(1.08);
  }
  to {
    transform: scale(1.13);
  }
}

.shade {
  position: absolute;
  z-index: 3;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.48), transparent 20%, transparent 72%, rgba(0, 0, 0, 0.68)),
    radial-gradient(circle at center, transparent 50%, rgba(0, 0, 0, 0.24));
}

.chrome {
  z-index: 5;
  transition: opacity 300ms ease, transform 300ms ease;
}

.chrome.is-hidden {
  opacity: 0;
  pointer-events: none;
}

.topbar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: 52px 1fr 52px;
  align-items: center;
  gap: 14px;
  padding: max(20px, env(safe-area-inset-top)) max(22px, env(safe-area-inset-right)) 18px max(22px, env(safe-area-inset-left));
}

.topbar.is-hidden {
  transform: translateY(-12px);
}

.eyebrow {
  margin: 0 0 3px;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.2rem, 2.6vw, 2rem);
  font-weight: 500;
}

.back,
.icon-button,
.play-button,
.text-button {
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.24);
  background: rgba(10, 9, 8, 0.34);
  backdrop-filter: blur(14px);
  cursor: pointer;
  text-decoration: none;
}

.back,
.icon-button,
.play-button {
  width: 48px;
  height: 48px;
  border-radius: 999px;
  font-size: 1.35rem;
}

.back:hover,
.icon-button:hover,
.play-button:hover,
.text-button:hover {
  border-color: rgba(255, 255, 255, 0.58);
  background: rgba(255, 255, 255, 0.12);
}

.stage-toggle {
  position: absolute;
  z-index: 4;
  inset: 100px 0 110px;
  width: 100%;
  border: 0;
  background: transparent;
  cursor: default;
}

.setup {
  position: absolute;
  z-index: 10;
  inset: 0;
  display: grid;
  place-items: center;
  overflow: auto;
  padding: max(80px, env(safe-area-inset-top)) 18px max(28px, env(safe-area-inset-bottom));
  background:
    linear-gradient(120deg, rgba(7, 7, 6, 0.78), rgba(7, 7, 6, 0.42)),
    url("../Le site des doux_files/2025-back.jpg") center / cover;
  transition: opacity 500ms ease;
}

.setup.is-hidden {
  opacity: 0;
  pointer-events: none;
}

.setup-card {
  width: min(680px, 100%);
  padding: clamp(26px, 5vw, 48px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 20px;
  background: rgba(16, 14, 12, 0.82);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.46);
  backdrop-filter: blur(24px);
}

h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.2rem, 7vw, 4rem);
  font-weight: 500;
  line-height: 1;
}

.setup-copy {
  max-width: 560px;
  margin: 18px 0 28px;
  color: #d1cbc2;
  line-height: 1.55;
}

.album-picker {
  display: grid;
  gap: 9px;
  color: #ddd6cd;
  font-size: 0.84rem;
  font-weight: 700;
}

.album-picker select {
  min-height: 52px;
  padding: 0 15px;
  border-color: rgba(216, 153, 104, 0.62);
  font-size: 1rem;
}

.media-picker {
  margin-top: 14px;
}

.media-picker.is-hidden,
.video-volume-setting.is-hidden {
  display: none;
}

.settings {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 26px 0;
}

.settings label {
  display: grid;
  align-content: start;
  gap: 8px;
  color: #ddd6cd;
  font-size: 0.84rem;
  font-weight: 700;
}

.settings output {
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 500;
}

select {
  width: 100%;
  min-height: 42px;
  padding: 0 10px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: #211e1a;
  color: var(--paper);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.music-credit {
  min-height: 1.35em;
  margin: -12px 0 18px;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.45;
}

.music-credit a {
  color: #e7b087;
}

.start-button {
  width: 100%;
  min-height: 54px;
  border: 0;
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink);
  font-weight: 900;
  cursor: pointer;
}

.start-button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.status {
  min-height: 1.3em;
  margin: 12px 0 0;
  text-align: center;
}

.status.is-error {
  color: #ffb6a8;
}

.fullscreen-help {
  width: min(520px, calc(100% - 32px));
  padding: 34px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  background: #181512;
  color: var(--paper);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.7);
}

.fullscreen-help::backdrop {
  background: rgba(0, 0, 0, 0.76);
  backdrop-filter: blur(8px);
}

.fullscreen-help h2 {
  max-width: 420px;
  font-size: clamp(2rem, 8vw, 3.2rem);
}

.fullscreen-help p:not(.eyebrow) {
  margin: 22px 0 26px;
  color: #d8d1c8;
  line-height: 1.65;
}

.dialog-close {
  position: absolute;
  top: 12px;
  right: 14px;
  width: 42px;
  height: 42px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 1.8rem;
  cursor: pointer;
}

.controls {
  position: absolute;
  right: max(22px, env(safe-area-inset-right));
  bottom: max(22px, env(safe-area-inset-bottom));
  left: max(22px, env(safe-area-inset-left));
  display: grid;
  grid-template-columns: 48px 56px 48px minmax(100px, auto) 1fr minmax(130px, 180px) auto;
  align-items: center;
  gap: 10px;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: var(--glass);
  box-shadow: 0 15px 50px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(18px);
}

.controls.is-hidden {
  transform: translateY(12px);
}

.play-button {
  width: 54px;
  height: 54px;
  background: var(--paper);
  color: var(--ink);
  font-size: 1rem;
  font-weight: 900;
}

.progress-copy {
  display: grid;
  gap: 2px;
  min-width: 110px;
  padding: 0 8px;
}

.progress-copy span {
  color: var(--muted);
  font-size: 0.76rem;
}

.progress-track {
  height: 3px;
  overflow: hidden;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.2);
}

.progress-track span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
  transition: width 300ms ease;
}

.text-button {
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 800;
}

.volume-control {
  display: grid;
  grid-template-columns: 42px minmax(70px, 1fr);
  align-items: center;
  gap: 8px;
}

.volume-control .icon-button {
  width: 42px;
  height: 42px;
  font-size: 1.1rem;
}

.music-button.is-muted {
  color: var(--muted);
  text-decoration: line-through;
}

@media (max-width: 720px) {
  .topbar {
    grid-template-columns: 44px 1fr 44px;
    padding-right: 14px;
    padding-left: 14px;
  }

  .back,
  .icon-button {
    width: 42px;
    height: 42px;
  }

  .settings {
    grid-template-columns: 1fr 1fr;
  }

  .controls {
    right: 10px;
    bottom: max(10px, env(safe-area-inset-bottom));
    left: 10px;
    grid-template-columns: 42px 50px 42px 1fr;
    border-radius: 18px;
  }

  .controls .progress-track,
  .controls .text-button,
  .controls .volume-control {
    display: none;
  }

  .play-button {
    width: 48px;
    height: 48px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .slide.is-active .slide-photo,
  .slide.is-active .slide-backdrop {
    animation: none;
  }

  .slide,
  .chrome,
  .setup {
    transition-duration: 1ms;
  }
}