:root {
  color-scheme: dark;
  --bg: #08060d;
  --bg-soft: #100b18;
  --surface: rgba(25, 18, 37, 0.64);
  --surface-strong: rgba(25, 18, 37, 0.9);
  --stroke: rgba(255, 255, 255, 0.09);
  --stroke-strong: rgba(186, 128, 255, 0.28);
  --text: #f7f3ff;
  --muted: #aaa0b8;
  --violet: #a65dff;
  --violet-2: #6f3dff;
  --pink: #d78bff;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--bg); color: var(--text); font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
body { overflow-x: hidden; -webkit-font-smoothing: antialiased; }
button, input { font: inherit; }
button { color: inherit; }
svg { display: block; }

.is-hidden { display: none !important; }

.library {
  position: relative;
  min-height: 100dvh;
  overflow: hidden;
  padding: calc(24px + var(--safe-top)) max(18px, var(--safe-right)) calc(36px + var(--safe-bottom)) max(18px, var(--safe-left));
  background:
    radial-gradient(circle at 75% 12%, rgba(128, 65, 255, 0.11), transparent 31%),
    radial-gradient(circle at 5% 68%, rgba(215, 139, 255, 0.08), transparent 29%),
    linear-gradient(180deg, #09070f 0%, #0a0711 42%, #07060b 100%);
}

.ambient { position: absolute; border-radius: 999px; filter: blur(80px); pointer-events: none; opacity: .24; }
.ambient-one { width: 190px; height: 190px; background: #7139ff; top: 120px; right: -90px; }
.ambient-two { width: 150px; height: 150px; background: #c76eff; bottom: 180px; left: -100px; }

.library-header,
.hero-panel,
.shelf-section,
.gesture-cards,
.local-note { position: relative; z-index: 1; width: min(100%, 1120px); margin-inline: auto; }

.library-header { display: flex; align-items: center; gap: 13px; margin-bottom: 24px; }
.brand-mark { width: 49px; height: 49px; border: 1px solid rgba(180, 119, 255, .28); border-radius: 16px; display: grid; place-items: center; background: linear-gradient(145deg, rgba(148, 84, 255, .22), rgba(255,255,255,.035)); box-shadow: 0 14px 34px rgba(25, 6, 54, .38), inset 0 1px 0 rgba(255,255,255,.1); }
.brand-mark svg { width: 30px; fill: none; stroke: #d2a6ff; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.eyebrow { margin: 0 0 2px; color: #9e8dae; font-size: 10px; letter-spacing: .22em; font-weight: 800; }
.library-header h1 { margin: 0; font-size: clamp(24px, 7vw, 35px); letter-spacing: -.04em; }

.glass-panel {
  border: 1px solid var(--stroke);
  background: linear-gradient(145deg, rgba(255,255,255,.055), rgba(255,255,255,.017)), var(--surface);
  box-shadow: 0 28px 70px rgba(0,0,0,.22), inset 0 1px 0 rgba(255,255,255,.07);
  backdrop-filter: blur(24px) saturate(125%);
  -webkit-backdrop-filter: blur(24px) saturate(125%);
}

.hero-panel { border-radius: 28px; padding: 25px; display: grid; gap: 30px; overflow: hidden; }
.hero-panel::after { content: ""; position: absolute; width: 230px; height: 230px; border-radius: 50%; background: radial-gradient(circle, rgba(167, 87, 255, .2), transparent 67%); right: -80px; top: -100px; pointer-events: none; }
.hero-copy { position: relative; z-index: 1; }
.pill { display: inline-flex; align-items: center; min-height: 28px; padding: 0 11px; border-radius: 999px; border: 1px solid rgba(194, 141, 255, .22); background: rgba(158, 88, 255, .11); color: #d8b7ff; font-size: 11px; font-weight: 750; }
.hero-copy h2 { margin: 15px 0 8px; max-width: 580px; font-size: clamp(31px, 9vw, 60px); line-height: .98; letter-spacing: -.055em; }
.hero-copy p { margin: 0; max-width: 520px; color: var(--muted); font-size: 15px; line-height: 1.55; }
.primary-button { width: fit-content; margin-top: 22px; min-height: 52px; padding: 0 19px; border-radius: 16px; display: inline-flex; align-items: center; gap: 10px; cursor: pointer; font-weight: 780; font-size: 14px; background: linear-gradient(135deg, #ac67ff, #743eff); box-shadow: 0 15px 32px rgba(107, 47, 212, .33), inset 0 1px 0 rgba(255,255,255,.3); transition: transform .2s ease, filter .2s ease; }
.primary-button:active { transform: scale(.98); }
.primary-button svg { width: 20px; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }

.gesture-preview { position: relative; z-index: 1; display: grid; grid-template-columns: 108px 1fr; align-items: center; gap: 18px; }
.phone-shape { position: relative; width: 104px; height: 173px; border: 1px solid rgba(255,255,255,.13); border-radius: 24px; padding: 11px; background: rgba(4,3,7,.55); box-shadow: inset 0 0 0 4px rgba(255,255,255,.025), 0 18px 45px rgba(0,0,0,.25); }
.mini-page { width: 100%; height: 100%; border-radius: 15px; background: linear-gradient(180deg, #f3eef9, #d5cedd); box-shadow: inset 0 0 0 1px rgba(31,20,42,.16); }
.mini-page::after { content: ""; display: block; width: 57%; height: 62%; margin: 27px auto; opacity: .55; background: repeating-linear-gradient(180deg, #82788d 0 2px, transparent 2px 8px); }
.finger { position: absolute; width: 13px; height: 31px; border-radius: 999px; background: linear-gradient(180deg, #d9b4ff, #9560d2); box-shadow: 0 4px 12px rgba(61, 25, 94, .55); animation: fingers 2.4s ease-in-out infinite; }
.finger-a { right: 23px; bottom: 35px; }
.finger-b { right: 41px; bottom: 28px; animation-delay: .08s; }
.swipe-line { position: absolute; right: 12px; top: 30px; width: 3px; height: 56px; border-radius: 99px; background: linear-gradient(180deg, transparent, #b77aff, transparent); animation: swipeLine 2.4s ease-in-out infinite; }
.mini-loupe { position: absolute; left: -12px; top: 29px; width: 47px; height: 47px; border-radius: 50%; border: 2px solid rgba(229,203,255,.8); background: rgba(87, 47, 126, .3); box-shadow: 0 9px 23px rgba(0,0,0,.3); opacity: 0; animation: loupeDemo 4.8s ease-in-out infinite 2.4s; }
.gesture-labels { display: grid; gap: 16px; }
.gesture-labels div { display: grid; gap: 3px; }
.gesture-labels strong { font-size: 13px; }
.gesture-labels span { color: var(--muted); font-size: 12px; line-height: 1.4; }

.shelf-section { margin-top: 32px; }
.section-title-row { display: flex; justify-content: space-between; align-items: end; gap: 14px; margin-bottom: 13px; }
.section-title-row h3 { margin: 0; font-size: 21px; letter-spacing: -.03em; }
.progress-memory { color: #cba5fa; font-size: 12px; }
.book-card { appearance: none; width: 100%; border-radius: 24px; padding: 13px; text-align: left; display: grid; grid-template-columns: 102px 1fr; gap: 17px; cursor: pointer; transition: transform .24s ease, border-color .24s ease, background .24s ease; }
.book-card:active { transform: scale(.985); }
.book-card:hover { border-color: rgba(179, 117, 255, .22); }
.cover-wrap { position: relative; width: 102px; aspect-ratio: 2/3; border-radius: 12px; overflow: hidden; box-shadow: 0 15px 30px rgba(0,0,0,.35); }
.cover-wrap img { width: 100%; height: 100%; object-fit: cover; display: block; }
.cover-shine { position: absolute; inset: 0; background: linear-gradient(115deg, transparent 28%, rgba(255,255,255,.12) 47%, transparent 66%); transform: translateX(-130%); transition: transform .6s ease; }
.book-card:hover .cover-shine { transform: translateX(130%); }
.book-meta { min-width: 0; align-self: center; }
.book-type { color: #b792df; font-size: 10px; letter-spacing: .11em; font-weight: 800; }
.book-meta h4 { margin: 8px 0 4px; font-size: 19px; letter-spacing: -.03em; }
.book-meta p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.45; }
.book-action { margin-top: 18px; display: flex; justify-content: space-between; align-items: center; color: #dbc1ff; font-size: 12px; font-weight: 750; }
.book-action svg { width: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.gesture-cards { margin-top: 17px; display: grid; gap: 12px; }
.gesture-card { border-radius: 20px; padding: 17px; display: grid; grid-template-columns: 52px 1fr; gap: 14px; align-items: center; }
.gesture-card strong { display: block; font-size: 13px; }
.gesture-card p { margin: 4px 0 0; color: var(--muted); font-size: 12px; line-height: 1.45; }
.gesture-icon { position: relative; width: 50px; height: 50px; border-radius: 16px; background: rgba(150, 80, 255, .1); border: 1px solid rgba(180, 123, 255, .16); }
.gesture-icon span { position: absolute; width: 8px; height: 23px; border-radius: 999px; background: linear-gradient(180deg, #d3afff, #8952ca); }
.two-fingers span:nth-child(1) { left: 17px; top: 14px; }
.two-fingers span:nth-child(2) { left: 28px; top: 10px; }
.one-finger span { left: 21px; top: 19px; }
.one-finger i { position: absolute; width: 22px; height: 22px; left: 5px; top: 5px; border: 1.5px solid #c59af5; border-radius: 50%; box-shadow: 0 0 13px rgba(185, 119, 255, .25); }
.local-note { margin-top: 19px; text-align: center; color: #786f83; font-size: 10px; line-height: 1.5; }

.reader { position: fixed; inset: 0; z-index: 50; overflow: hidden; background: #050407; touch-action: none; overscroll-behavior: none; user-select: none; -webkit-user-select: none; }
.reader-backdrop { position: absolute; inset: 0; background: radial-gradient(circle at 50% 50%, #17111e 0%, #08060b 45%, #030304 100%); }
.reader-topbar,
.reader-bottombar { position: absolute; z-index: 20; left: max(10px, var(--safe-left)); right: max(10px, var(--safe-right)); border: 1px solid rgba(255,255,255,.08); background: rgba(17, 12, 24, .72); backdrop-filter: blur(22px) saturate(140%); -webkit-backdrop-filter: blur(22px) saturate(140%); box-shadow: 0 12px 35px rgba(0,0,0,.23), inset 0 1px 0 rgba(255,255,255,.055); transition: opacity .28s ease, transform .28s ease; }
.reader-topbar { top: calc(10px + var(--safe-top)); min-height: 56px; border-radius: 19px; display: grid; grid-template-columns: 44px minmax(0,1fr) 44px; gap: 8px; align-items: center; padding: 5px; }
.reader-bottombar { bottom: calc(11px + var(--safe-bottom)); min-height: 53px; border-radius: 19px; display: grid; grid-template-columns: 42px minmax(0,1fr) 42px; gap: 8px; align-items: center; padding: 5px; }
.reader.chrome-hidden .reader-topbar { opacity: 0; transform: translateY(-18px); pointer-events: none; }
.reader.chrome-hidden .reader-bottombar { opacity: 0; transform: translateY(18px); pointer-events: none; }
.icon-button, .page-nav-button { appearance: none; border: 0; border-radius: 14px; background: rgba(255,255,255,.045); display: grid; place-items: center; cursor: pointer; }
.icon-button { width: 44px; height: 44px; }
.page-nav-button { width: 42px; height: 42px; }
.icon-button:active, .page-nav-button:active { background: rgba(167, 101, 255, .16); transform: scale(.96); }
.icon-button svg, .page-nav-button svg { width: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.exit-fullscreen { display: none; }
:fullscreen .enter-fullscreen, .reader.is-fullscreen .enter-fullscreen { display: none; }
:fullscreen .exit-fullscreen, .reader.is-fullscreen .exit-fullscreen { display: block; }
.reader-title-wrap { min-width: 0; text-align: center; display: grid; gap: 2px; }
.reader-title-wrap strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; }
.reader-title-wrap span { color: #a99eb2; font-size: 10px; }

.page-stage { position: absolute; inset: 0; z-index: 4; display: grid; place-items: center; overflow: hidden; touch-action: none; }
.page-canvas { position: absolute; max-width: none; max-height: none; opacity: 0; transform: translate3d(0,100%,0); box-shadow: 0 20px 70px rgba(0,0,0,.46); background: #fff; will-change: transform, opacity; }
.page-canvas.is-active { opacity: 1; transform: translate3d(0,0,0); }
.page-canvas.prep-next { opacity: 1; transform: translate3d(0,100%,0); }
.page-canvas.prep-prev { opacity: 1; transform: translate3d(0,-100%,0); }
.page-canvas.slide-active-up { transition: transform .38s cubic-bezier(.2,.77,.26,1); transform: translate3d(0,-100%,0); }
.page-canvas.slide-active-down { transition: transform .38s cubic-bezier(.2,.77,.26,1); transform: translate3d(0,100%,0); }
.page-canvas.slide-in { transition: transform .38s cubic-bezier(.2,.77,.26,1); transform: translate3d(0,0,0); }

.render-loader { position: absolute; display: none; align-items: center; gap: 5px; padding: 10px 14px; border-radius: 999px; background: rgba(11,8,15,.64); backdrop-filter: blur(10px); }
.render-loader.is-visible { display: flex; }
.render-loader span { width: 5px; height: 5px; border-radius: 50%; background: #bd8df5; animation: dots .9s ease-in-out infinite; }
.render-loader span:nth-child(2) { animation-delay: .13s; }
.render-loader span:nth-child(3) { animation-delay: .26s; }

.scrubber-wrap { position: relative; height: 38px; display: flex; align-items: center; }
#pageScrubber { position: absolute; inset: 0; z-index: 2; width: 100%; opacity: 0; cursor: pointer; }
.scrubber-track { width: 100%; height: 4px; border-radius: 99px; overflow: hidden; background: rgba(255,255,255,.09); }
.scrubber-track span { display: block; width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, #8850ff, #c17cff); box-shadow: 0 0 12px rgba(172,105,255,.55); }
.page-progress { position: absolute; z-index: 19; bottom: 0; left: 0; right: 0; height: 2px; background: rgba(255,255,255,.025); }
.page-progress span { display: block; height: 100%; width: 0; background: linear-gradient(90deg, #713bff, #c786ff); transition: width .3s ease; }

.magnifier { position: fixed; z-index: 40; width: 126px; height: 126px; border-radius: 50%; opacity: 0; pointer-events: none; border: 2px solid rgba(237, 219, 255, .9); background: #fff; box-shadow: 0 18px 52px rgba(0,0,0,.5), 0 0 0 5px rgba(140, 79, 213, .16), inset 0 0 18px rgba(45,22,67,.18); transform: scale(.78); transform-origin: 50% 100%; transition: opacity .12s ease, transform .16s cubic-bezier(.2,.8,.2,1); }
.magnifier.is-visible { opacity: 1; transform: scale(1); }
.magnifier-pointer { position: fixed; z-index: 39; width: 2px; height: 29px; border-radius: 99px; background: linear-gradient(180deg, rgba(216,184,255,.8), transparent); pointer-events: none; opacity: 0; transition: opacity .12s ease; }
.magnifier-pointer.is-visible { opacity: 1; }

.swipe-indicator { position: absolute; z-index: 10; bottom: calc(80px + var(--safe-bottom)); left: 50%; transform: translateX(-50%) translateY(10px); display: flex; align-items: center; gap: 8px; padding: 9px 12px; border-radius: 999px; color: #c8b8d5; font-size: 10px; background: rgba(13,9,18,.66); border: 1px solid rgba(255,255,255,.08); backdrop-filter: blur(12px); opacity: 0; pointer-events: none; transition: opacity .25s ease, transform .25s ease; }
.swipe-indicator.is-visible { opacity: 1; transform: translateX(-50%) translateY(0); }
.swipe-indicator svg { width: 16px; fill: none; stroke: #bd83ff; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.toast { position: absolute; z-index: 45; left: 50%; bottom: calc(80px + var(--safe-bottom)); transform: translateX(-50%) translateY(14px); max-width: min(86vw, 420px); padding: 10px 14px; border-radius: 999px; opacity: 0; pointer-events: none; background: rgba(17,12,24,.84); border: 1px solid rgba(255,255,255,.09); backdrop-filter: blur(18px); color: #e7dbef; font-size: 11px; text-align: center; transition: opacity .2s ease, transform .2s ease; }
.toast.is-visible { opacity: 1; transform: translateX(-50%) translateY(0); }

.load-overlay { position: absolute; z-index: 60; inset: 0; display: grid; place-items: center; padding: 20px; background: rgba(4,3,6,.82); backdrop-filter: blur(18px); transition: opacity .35s ease, visibility .35s ease; }
.load-overlay.is-hidden { opacity: 0; visibility: hidden; pointer-events: none; display: grid !important; }
.load-card { width: min(100%, 290px); padding: 24px; border-radius: 24px; text-align: center; }
.load-card strong { display: block; margin-top: 15px; font-size: 14px; }
.load-card p { margin: 6px 0 0; color: var(--muted); font-size: 11px; }
.book-loader { width: 50px; height: 42px; margin: auto; position: relative; }
.book-loader span { position: absolute; bottom: 0; width: 13px; height: 35px; border-radius: 3px 7px 7px 3px; transform-origin: left bottom; background: linear-gradient(180deg, #d8b0ff, #7940dd); animation: bookPages 1.2s ease-in-out infinite; }
.book-loader span:nth-child(1) { left: 5px; }
.book-loader span:nth-child(2) { left: 19px; animation-delay: .12s; }
.book-loader span:nth-child(3) { left: 33px; animation-delay: .24s; }

@keyframes fingers { 0%, 15%, 78%, 100% { transform: translateY(0); } 38%, 60% { transform: translateY(-58px); } }
@keyframes swipeLine { 0%, 10%, 75%, 100% { opacity: 0; transform: translateY(32px); } 24% { opacity: 1; } 58% { opacity: .25; transform: translateY(-25px); } }
@keyframes loupeDemo { 0%, 8%, 44%, 100% { opacity: 0; transform: scale(.7) translateY(15px); } 17%, 34% { opacity: 1; transform: scale(1) translateY(0); } }
@keyframes dots { 0%, 100% { transform: translateY(0); opacity: .35; } 50% { transform: translateY(-4px); opacity: 1; } }
@keyframes bookPages { 0%,100% { transform: perspective(120px) rotateY(0); } 50% { transform: perspective(120px) rotateY(-42deg); } }

@media (min-width: 760px) {
  .library { padding-inline: 28px; }
  .library-header { margin-bottom: 32px; }
  .hero-panel { grid-template-columns: minmax(0, 1.45fr) minmax(260px, .55fr); padding: 45px; align-items: center; }
  .gesture-preview { grid-template-columns: 130px 1fr; justify-self: end; }
  .phone-shape { width: 125px; height: 210px; }
  .shelf-section { margin-top: 40px; }
  .book-card { width: min(100%, 570px); grid-template-columns: 130px 1fr; padding: 16px; }
  .cover-wrap { width: 130px; }
  .book-meta h4 { font-size: 22px; }
  .gesture-cards { grid-template-columns: 1fr 1fr; }
  .reader-topbar { left: 50%; right: auto; width: min(620px, calc(100vw - 36px)); transform: translateX(-50%); }
  .reader-bottombar { left: 50%; right: auto; width: min(560px, calc(100vw - 36px)); transform: translateX(-50%); }
  .reader.chrome-hidden .reader-topbar { transform: translateX(-50%) translateY(-18px); }
  .reader.chrome-hidden .reader-bottombar { transform: translateX(-50%) translateY(18px); }
  .magnifier { width: 150px; height: 150px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}

.load-back-button {
  margin-top: 16px;
  min-height: 42px;
  padding: 0 18px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 14px;
  background: rgba(255,255,255,.07);
  color: #f4edf8;
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}
.load-back-button:active { transform: scale(.98); }

/* BookReader FINAL V4 — navigation à un doigt, pincement à deux doigts et zoom page intelligent */

.pinch-ring {
  position: absolute;
  left: 22px;
  top: 52px;
  width: 58px;
  height: 58px;
  border: 1.5px solid rgba(213, 176, 255, .82);
  border-radius: 18px;
  opacity: 0;
  box-shadow: 0 0 20px rgba(177, 104, 255, .26);
  animation: pinchRing 4.8s ease-in-out infinite;
}

.phone-shape .finger-a {
  right: 32px;
  bottom: 30px;
  animation: oneFingerSwipe 4.8s ease-in-out infinite;
}

.phone-shape .finger-b {
  right: 48px;
  bottom: 55px;
  opacity: 0;
  animation: pinchSecondFinger 4.8s ease-in-out infinite;
}

.phone-shape .swipe-line { animation: oneSwipeLine 4.8s ease-in-out infinite; }

.one-swipe span { left: 21px; top: 18px; }
.one-swipe i {
  position: absolute;
  left: 24px;
  top: 7px;
  width: 2px;
  height: 34px;
  border-radius: 99px;
  background: linear-gradient(180deg, transparent, #c99eff, transparent);
}

.pinch-gesture span:nth-child(1) { left: 14px; top: 17px; transform: rotate(-20deg); }
.pinch-gesture span:nth-child(2) { left: 29px; top: 10px; transform: rotate(20deg); }
.pinch-gesture i {
  position: absolute;
  inset: 10px;
  border: 1.5px solid rgba(201, 154, 245, .8);
  border-radius: 12px;
  box-shadow: 0 0 14px rgba(185, 119, 255, .24);
}

.page-zoom-icon span {
  left: 13px;
  top: 12px;
  width: 24px;
  height: 27px;
  border-radius: 4px;
  background: transparent;
  border: 1.5px solid #c79cf4;
}
.page-zoom-icon i {
  position: absolute;
  inset: 7px;
  border: 1px dashed rgba(207, 164, 255, .65);
  border-radius: 9px;
}

.reader-topbar {
  grid-template-columns: 44px minmax(0, 1fr) auto;
}

.reader-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.mode-button {
  appearance: none;
  height: 44px;
  min-width: 90px;
  padding: 0 10px;
  border: 0;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  color: #d8cbe3;
  background: rgba(255,255,255,.045);
  cursor: pointer;
  transition: background .2s ease, color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.mode-button svg {
  width: 18px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.mode-button span {
  font-size: 9px;
  font-weight: 800;
  line-height: 1.05;
  white-space: nowrap;
}
.mode-button:active { transform: scale(.96); }
.mode-button.is-active {
  color: #f0dcff;
  background: linear-gradient(135deg, rgba(157, 83, 255, .24), rgba(199, 122, 255, .13));
  box-shadow: inset 0 0 0 1px rgba(202, 151, 255, .22), 0 0 18px rgba(135, 68, 225, .13);
}

.page-stage { cursor: default; }
.page-stage.is-panning { cursor: grabbing; }

.page-layer {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  opacity: 0;
  transform: translate3d(0, 100%, 0);
  pointer-events: none;
  will-change: transform, opacity;
}
.page-layer.is-active { opacity: 1; transform: translate3d(0, 0, 0); }
.page-layer.prep-next { opacity: 1; transform: translate3d(0, 100%, 0); }
.page-layer.prep-prev { opacity: 1; transform: translate3d(0, -100%, 0); }
.page-layer.slide-active-up {
  transition: transform .38s cubic-bezier(.2,.77,.26,1);
  transform: translate3d(0, -100%, 0);
}
.page-layer.slide-active-down {
  transition: transform .38s cubic-bezier(.2,.77,.26,1);
  transform: translate3d(0, 100%, 0);
}
.page-layer.slide-in {
  transition: transform .38s cubic-bezier(.2,.77,.26,1);
  transform: translate3d(0, 0, 0);
}

.page-canvas,
.page-canvas.is-active,
.page-canvas.prep-next,
.page-canvas.prep-prev,
.page-canvas.slide-active-up,
.page-canvas.slide-active-down,
.page-canvas.slide-in {
  position: relative;
  opacity: 1;
  transform: translate3d(0,0,0) scale(1);
  transform-origin: 50% 50%;
  transition: none;
  will-change: transform;
  touch-action: none;
}
.page-canvas.view-animated {
  transition: transform .22s cubic-bezier(.2,.8,.2,1);
}

.zoom-badge {
  position: absolute;
  z-index: 16;
  top: calc(78px + var(--safe-top));
  left: 50%;
  transform: translateX(-50%) translateY(-6px) scale(.96);
  min-width: 58px;
  padding: 7px 10px;
  border-radius: 999px;
  color: #eadcf5;
  background: rgba(14, 10, 20, .72);
  border: 1px solid rgba(255,255,255,.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  font-size: 10px;
  font-weight: 800;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .16s ease, transform .16s ease;
}
.zoom-badge.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0) scale(1);
}

@keyframes oneFingerSwipe {
  0%, 7%, 36%, 100% { opacity: 1; transform: translateY(0); }
  17%, 28% { opacity: 1; transform: translateY(-60px); }
  42%, 50% { opacity: 0; transform: translate(-10px, -18px); }
  58%, 75% { opacity: 1; transform: translate(-14px, -21px); }
  85%, 94% { opacity: 1; transform: translate(-25px, -32px); }
}

@keyframes pinchSecondFinger {
  0%, 42%, 100% { opacity: 0; transform: translate(0,0); }
  50%, 58% { opacity: 1; transform: translate(0,0); }
  75%, 94% { opacity: 1; transform: translate(16px, -12px); }
}

@keyframes oneSwipeLine {
  0%, 5%, 34%, 100% { opacity: 0; transform: translateY(32px); }
  12% { opacity: 1; }
  27% { opacity: .2; transform: translateY(-28px); }
}

@keyframes pinchRing {
  0%, 44%, 100% { opacity: 0; transform: scale(.78); }
  52%, 61% { opacity: .7; transform: scale(.78); }
  78%, 93% { opacity: .95; transform: scale(1.24); }
}

@media (min-width: 760px) {
  .gesture-cards { grid-template-columns: repeat(3, 1fr); }
  .reader-topbar { width: min(760px, calc(100vw - 36px)); }
}

@media (max-width: 440px) {
  .reader-topbar { gap: 5px; }
  .reader-actions { gap: 4px; }
  .mode-button {
    min-width: 44px;
    width: 44px;
    padding: 0;
  }
  .mode-button span { display: none; }
  .reader-title-wrap strong { font-size: 11px; }
}


/* BookReader V6 — lecture de nuit ciblée sur les pages blanches */
.night-reading-icon span {
  position: absolute;
  left: 13px;
  top: 10px;
  width: 25px;
  height: 25px;
  border-radius: 50%;
  border: 1.5px solid #c79cf4;
}
.night-reading-icon span::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  left: 7px;
  top: -5px;
  border-radius: 50%;
  background: #171020;
}
.night-reading-icon i {
  position: absolute;
  right: 9px;
  top: 8px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #d7b4ff;
  box-shadow: -7px 14px 0 -1px rgba(215,180,255,.78), 1px 21px 0 -1px rgba(215,180,255,.55);
}

.night-mode-button .sun-icon { display: none; }
.night-mode-button.is-active .moon-icon { display: none; }
.night-mode-button.is-active .sun-icon { display: block; }

.reader.night-mode .reader-backdrop { background: #000; }
.reader.night-mode .page-canvas[data-white-reading-page="true"] {
  background: #000;
  filter: invert(1) hue-rotate(180deg) brightness(.94) contrast(1.06);
}
.reader.night-mode .page-canvas[data-white-reading-page="false"] {
  filter: none;
}
.reader.night-mode .page-canvas { box-shadow: 0 18px 66px rgba(0,0,0,.86); }
.reader.night-mode .reader-topbar,
.reader.night-mode .reader-bottombar {
  background: rgba(3,3,5,.76);
  border-color: rgba(255,255,255,.075);
}

@media (min-width: 760px) {
  .gesture-cards { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .reader-topbar { width: min(900px, calc(100vw - 36px)); }
}

/* Les deux options restent accessibles sur les petits écrans sans comprimer le titre. */
@media (max-width: 680px) {
  .reader-topbar { gap: 4px; }
  .reader-actions { gap: 3px; }
  .mode-button {
    min-width: 44px;
    width: 44px;
    padding: 0;
  }
  .mode-button span { display: none; }
  .reader-title-wrap strong { font-size: 10.5px; }
}

/* BookReader V7 — livre intégré en 3D + mode paysage côte à côte */
.library {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.book-showcase {
  position: relative;
  z-index: 1;
  width: min(100%, 1220px);
  margin: 8px auto 0;
  padding: 22px;
  border-radius: 32px;
  display: grid;
  gap: 26px;
  overflow: hidden;
}
.book-showcase::after {
  content: "";
  position: absolute;
  width: 340px;
  height: 340px;
  right: -140px;
  top: -130px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(167,87,255,.22), transparent 68%);
  pointer-events: none;
}
.showcase-copy,
.book-preview-wrap { position: relative; z-index: 1; }
.showcase-copy { display: grid; gap: 14px; }
.showcase-copy h2 {
  margin: 0;
  font-size: clamp(34px, 10vw, 66px);
  line-height: .94;
  letter-spacing: -.06em;
}
.showcase-subtitle {
  margin: 0;
  color: #d8b8ff;
  font-size: clamp(14px, 3vw, 18px);
  font-weight: 650;
}
.showcase-description {
  margin: 0;
  max-width: 650px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
}
.showcase-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 6px;
}
.secondary-button {
  appearance: none;
  min-height: 52px;
  padding: 0 18px;
  border-radius: 16px;
  border: 1px solid rgba(192, 143, 255, .22);
  background: rgba(255,255,255,.04);
  color: #f3e8ff;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-weight: 700;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.secondary-button:active { transform: scale(.98); }
.secondary-button svg,
.primary-button svg {
  width: 19px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.showcase-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 4px;
}
.showcase-meta div {
  min-height: 72px;
  border-radius: 18px;
  padding: 14px 15px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.03);
  display: grid;
  gap: 5px;
}
.showcase-meta strong {
  color: #cba8f6;
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.showcase-meta span {
  font-size: 13px;
  color: #f6efff;
}
.showcase-hints {
  display: grid;
  gap: 5px;
  margin-top: 2px;
  color: #a99eb2;
  font-size: 12px;
}
.showcase-hints .progress-memory {
  color: #d5b1ff;
  font-size: 13px;
  font-weight: 700;
}

.book-preview-wrap {
  display: grid;
  place-items: center;
}
.book-preview-button {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 0;
  width: 100%;
  cursor: pointer;
}
.open-book-3d {
  --tiltY: -18deg;
  width: min(100%, 860px);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr 20px 1fr;
  gap: clamp(8px, 1.9vw, 16px);
  align-items: stretch;
  perspective: 1800px;
  transform-style: preserve-3d;
  transform: rotateX(10deg) rotateY(var(--tiltY));
  transition: transform .7s cubic-bezier(.2,.8,.2,1);
}
.open-book-3d:hover { transform: rotateX(8deg) rotateY(calc(var(--tiltY) * .75)) translateY(-3px); }
.open-book-3d.is-flipped {
  --tiltY: 18deg;
}
.open-book-page {
  position: relative;
  aspect-ratio: 2 / 3.2;
  border-radius: 16px;
  overflow: hidden;
  background: #150f1f;
  box-shadow:
    0 34px 65px rgba(0,0,0,.35),
    0 10px 22px rgba(0,0,0,.25),
    inset 0 1px 0 rgba(255,255,255,.09);
}
.open-book-page img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.book-left-page { transform: rotateY(8deg); transform-origin: right center; }
.book-right-page { transform: rotateY(-8deg); transform-origin: left center; }
.open-book-3d.is-flipped .book-left-page { transform: rotateY(5deg); }
.open-book-3d.is-flipped .book-right-page { transform: rotateY(-5deg); }
.open-book-spine {
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.02) 20%, rgba(0,0,0,.28) 50%, rgba(255,255,255,.02) 82%, rgba(255,255,255,.08)),
    linear-gradient(180deg, #2e1b49, #120b1d);
  box-shadow:
    inset 0 0 12px rgba(255,255,255,.08),
    0 0 18px rgba(120,60,220,.18);
}
.book-preview-button:active .open-book-3d { transform: rotateX(8deg) rotateY(var(--tiltY)) scale(.99); }

.reader.spread-active .page-canvas {
  box-shadow: 0 24px 80px rgba(0,0,0,.52);
}

@media (min-width: 920px) {
  .book-showcase {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    align-items: center;
    padding: 34px;
  }
  .showcase-copy {
    padding-right: 10px;
  }
  .showcase-meta div { min-height: 80px; }
  .reader-topbar { width: min(980px, calc(100vw - 36px)); }
}

@media (max-width: 760px) {
  .book-showcase { padding: 18px; border-radius: 26px; }
  .showcase-meta { grid-template-columns: 1fr; }
  .showcase-meta div { min-height: 64px; }
  .showcase-copy h2 { max-width: 280px; }
  .open-book-3d { grid-template-columns: 1fr 14px 1fr; }
}

@media (max-width: 520px) {
  .library-header { margin-bottom: 16px; }
  .book-showcase { gap: 18px; }
  .showcase-description { font-size: 14px; }
  .showcase-hints { font-size: 11px; }
  .open-book-3d {
    width: 100%;
    grid-template-columns: 1fr 10px 1fr;
    gap: 6px;
    transform: rotateX(8deg) rotateY(var(--tiltY));
  }
  .open-book-page { border-radius: 12px; }
}

/* GlaynaReader V8 — branding Glayna + couverture simple + choix 1 page/livre */
body { background: var(--bg); }

.brand-cover-mark {
  overflow: hidden;
  padding: 0;
}
.brand-cover-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.glayna-home {
  position: relative;
  z-index: 1;
  width: min(100%, 1180px);
  margin: 8px auto 0;
  padding: 22px;
  border-radius: 30px;
  display: grid;
  gap: 22px;
  align-items: center;
}
.glayna-home::after {
  content: "";
  position: absolute;
  width: 320px;
  height: 320px;
  right: -120px;
  top: -120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(167,87,255,.20), transparent 67%);
  pointer-events: none;
}
.glayna-home-copy,
.glayna-book-card-wrap { position: relative; z-index: 1; }
.glayna-home-copy { display: grid; gap: 14px; }
.glayna-home-copy h2 {
  margin: 0;
  max-width: 660px;
  font-size: clamp(34px, 9vw, 62px);
  line-height: .98;
  letter-spacing: -.055em;
}
.home-description {
  margin: 0;
  max-width: 600px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
}
.home-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 14px;
  margin-top: 6px;
}
.home-control-group {
  display: grid;
  gap: 8px;
}
.home-control-label {
  color: #c8a9f0;
  font-size: 11px;
  font-weight: 750;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.layout-choice {
  display: inline-grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  padding: 6px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.04);
}
.layout-choice-button {
  appearance: none;
  min-height: 46px;
  min-width: 108px;
  padding: 0 16px;
  border: 0;
  border-radius: 13px;
  background: transparent;
  color: #cbbadf;
  font: inherit;
  font-weight: 750;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, transform .2s ease;
}
.layout-choice-button.is-active {
  color: #fff;
  background: linear-gradient(135deg, rgba(157, 83, 255, .32), rgba(199, 122, 255, .16));
  box-shadow: inset 0 0 0 1px rgba(202, 151, 255, .22), 0 8px 18px rgba(115, 52, 201, .12);
}
.layout-choice-button:active { transform: scale(.98); }
.home-hints { margin-top: 2px; }

.glayna-book-card-wrap {
  display: grid;
  place-items: center;
}
.glayna-book-card {
  appearance: none;
  width: min(100%, 420px);
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  text-align: left;
  transition: transform .24s ease;
}
.glayna-book-card:active { transform: scale(.99); }
.glayna-book-cover-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 2 / 3;
  border-radius: 24px;
  overflow: hidden;
  background: rgba(255,255,255,.05);
  box-shadow: 0 28px 60px rgba(0,0,0,.38), inset 0 1px 0 rgba(255,255,255,.08);
}
.glayna-book-cover-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.glayna-book-meta {
  padding: 16px 6px 0;
  display: grid;
  gap: 6px;
}
.glayna-book-meta h3 {
  margin: 0;
  font-size: 27px;
  letter-spacing: -.04em;
}
.glayna-book-meta p,
.glayna-book-meta strong,
.glayna-book-meta .book-type {
  margin: 0;
}
.glayna-book-meta p { color: var(--muted); font-size: 14px; }
.glayna-book-meta strong { color: #f0e3ff; font-size: 14px; }

.mode-button-wide { min-width: 84px; }

.page-layer {
  transform-style: preserve-3d;
  perspective: 1800px;
}
.page-layer.book-prep-next {
  opacity: .98;
  transform: perspective(1800px) rotateY(88deg) scale(.985);
  transform-origin: center center;
  filter: brightness(.9);
}
.page-layer.book-prep-prev {
  opacity: .98;
  transform: perspective(1800px) rotateY(-88deg) scale(.985);
  transform-origin: center center;
  filter: brightness(.9);
}
.page-layer.book-turn-out-next {
  transition: transform .68s cubic-bezier(.23,.79,.17,1), opacity .68s ease, filter .68s ease;
  transform: perspective(1800px) rotateY(-88deg) scale(.985);
  transform-origin: center center;
  opacity: .42;
  filter: brightness(.8);
}
.page-layer.book-turn-out-prev {
  transition: transform .68s cubic-bezier(.23,.79,.17,1), opacity .68s ease, filter .68s ease;
  transform: perspective(1800px) rotateY(88deg) scale(.985);
  transform-origin: center center;
  opacity: .42;
  filter: brightness(.8);
}
.page-layer.book-turn-in-next,
.page-layer.book-turn-in-prev {
  transition: transform .68s cubic-bezier(.23,.79,.17,1), opacity .68s ease, filter .68s ease;
  transform: perspective(1800px) rotateY(0deg) scale(1);
  opacity: 1;
  filter: brightness(1);
}
.page-layer.book-turn-in-next,
.page-layer.book-turn-out-next {
  box-shadow: -26px 0 42px rgba(0,0,0,.18);
}
.page-layer.book-turn-in-prev,
.page-layer.book-turn-out-prev {
  box-shadow: 26px 0 42px rgba(0,0,0,.18);
}
.reader.book-navigation .swipe-indicator svg {
  transform: rotate(90deg);
}

@media (min-width: 930px) {
  .glayna-home {
    grid-template-columns: minmax(0, .95fr) minmax(0, .75fr);
    padding: 34px;
  }
  .reader-topbar { width: min(1040px, calc(100vw - 34px)); }
}

@media (max-width: 760px) {
  .glayna-home { padding: 18px; }
  .home-controls { align-items: stretch; }
  .layout-choice { width: 100%; }
  .layout-choice-button { min-width: 0; }
  .glayna-book-card { width: min(100%, 320px); }
}

@media (max-width: 500px) {
  .brand-cover-mark { width: 46px; height: 46px; border-radius: 14px; }
  .glayna-home-copy h2 { max-width: 290px; }
  .mode-button-wide {
    min-width: 44px;
    width: 44px;
    padding: 0;
  }
  .mode-button-wide span { display: none; }
}

.page-layer::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity .22s ease;
}
.page-layer.book-turn-out-next::after,
.page-layer.book-prep-next::after {
  opacity: 1;
  background: linear-gradient(90deg, rgba(0,0,0,0) 56%, rgba(0,0,0,.22) 100%);
}
.page-layer.book-turn-out-prev::after,
.page-layer.book-prep-prev::after {
  opacity: 1;
  background: linear-gradient(270deg, rgba(0,0,0,0) 56%, rgba(0,0,0,.22) 100%);
}
.page-layer.book-turn-in-next::after,
.page-layer.book-turn-in-prev::after {
  opacity: .45;
}