#level-thirteen-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: #000000;
    display: none;
    opacity: 0;
    z-index: 1000;
    overflow: hidden;
    cursor: none;
}
#level-thirteen-container .l13-overlay,
#level-thirteen-container .l13-overlay * { cursor: auto; }
#level-thirteen-container .l13-door-input  { cursor: text; }
#level-thirteen-container .l13-door-submit,
#level-thirteen-container .l13-close,
#level-thirteen-container .l13-door-close,
#level-thirteen-container .l13-book-close  { cursor: pointer; }
#l13-loading {
    position: fixed;
    inset: 0;
    z-index: 9999;
    --l13-t-close:       650ms;
    --l13-t-fast:        7000ms;
    --l13-t-medium:      2800ms;
    --l13-t-slow:        4000ms;
    --l13-t-ride-total:  11800ms;
    --l13-t-open:        650ms;
    --l13-ease-snap:     cubic-bezier(.2,.9,.2,1);
}
#l13-loading .l13-transition {
    position: fixed;
    inset: 0;
    display: grid;
    place-items: center;
    background: #fff;
    font-family: "Bebas Neue", "Impact", system-ui, -apple-system, sans-serif;
}
#l13-loading .l13-shaft {
    position: relative;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
}
#l13-loading .l13-scanlines {
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        to bottom,
        rgba(0,0,0,0.00) 0px,
        rgba(0,0,0,0.00) 6px,
        rgba(0,0,0,0.04) 7px
    );
    mix-blend-mode: multiply;
    opacity: .45;
    pointer-events: none;
}
#l13-loading .l13-sequence {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 11;
}
#l13-loading .l13-sequence-track {
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    min-height: 2500vh;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    opacity: 0;
    gap: 0;
}
#l13-loading .l13-item {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: 0.12em;
    box-sizing: border-box;
    margin-bottom: -1px;
}
#l13-loading .l13-level {
    color: #fff;
    font-size: clamp(3rem, 10vw, 10rem);
    letter-spacing: .08em;
    text-transform: uppercase;
    line-height: 0.95;
}
#l13-loading .l13-level.l13-level-final {
    font-size: clamp(3.6rem, 12vw, 12.5rem);
    letter-spacing: .10em;
}
#l13-loading .l13-level-text {
    color: #fff;
    display: block;
}
#l13-loading .l13-window {
    align-items: center;
    justify-content: center;
    padding: 0;
    background: #000;
    overflow: visible;
    display: flex;
    flex-wrap: wrap;
    gap: 0.8vh 0.8vw;
}
#l13-loading .l13-pane {
    width: 12.1vw;
    height: 2.6vh;
    background: #fff;
    pointer-events: none;
}
#l13-loading .l13-blackout {
    min-height: 100vh;
    background: #000;
}
#l13-loading .l13-transition.l13-is-riding .l13-level-text,
#l13-loading .l13-transition.l13-is-riding .l13-pane {
    opacity: 0;
}
#l13-loading .l13-panel { display: none; }
#l13-loading .l13-doors {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 10;
}
#l13-loading .l13-door {
    position: absolute;
    top: 0;
    width: 51vw;
    height: 100vh;
    background: #000;
    box-shadow: inset 0 0 60px rgba(255,255,255,0.05);
}
#l13-loading .l13-door-left  { left: 0;  transform: translateX(-100%); }
#l13-loading .l13-door-right { right: 0; transform: translateX(100%);  }
#l13-loading .l13-transition.l13-is-closing .l13-door-left {
    animation: l13-door-left-close var(--l13-t-close) var(--l13-ease-snap) forwards;
}
#l13-loading .l13-transition.l13-is-closing .l13-door-right {
    animation: l13-door-right-close var(--l13-t-close) var(--l13-ease-snap) forwards;
}
@keyframes l13-door-left-close  { to { transform: translateX(0); } }
@keyframes l13-door-right-close { to { transform: translateX(0); } }
#l13-loading .l13-transition.l13-is-riding {
    background: #000;
}
#l13-loading .l13-transition.l13-is-riding .l13-sequence-track { opacity: 1 !important; }
#l13-loading .l13-transition.l13-is-riding .l13-sequence { z-index: 20; }
#l13-loading .l13-transition.l13-is-riding .l13-shaft {
    animation: l13-shake-ride var(--l13-t-ride-total, 11800ms) ease-out forwards;
}
@keyframes l13-shake-ride {
    0%   { transform: translateY(0);    }
    20%  { transform: translateY(-1px); }
    45%  { transform: translateY(1px);  }
    70%  { transform: translateY(-1px); }
    100% { transform: translateY(0);    }
}
#l13-loading .l13-transition.l13-is-opening .l13-door-left {
    animation: l13-door-left-open var(--l13-t-open) var(--l13-ease-snap) forwards;
}
#l13-loading .l13-transition.l13-is-opening .l13-door-right {
    animation: l13-door-right-open var(--l13-t-open) var(--l13-ease-snap) forwards;
}
@keyframes l13-door-left-open  { from { transform: translateX(0); } to { transform: translateX(-100%); } }
@keyframes l13-door-right-open { from { transform: translateX(0); } to { transform: translateX(100%);  } }
#l13-loading .l13-transition.l13-is-opening               { background: transparent; }
#l13-loading .l13-transition.l13-is-opening .l13-shaft    { background: transparent; }
#l13-loading .l13-transition.l13-is-opening .l13-sequence-track,
#l13-loading .l13-transition.l13-is-opening .l13-sequence { opacity: 0; pointer-events: none; }
#l13-loading .l13-transition.l13-is-opening .l13-doors    { z-index: 25; }
#l13-loading .l13-transition.l13-is-opening .l13-scanlines { opacity: 0; }
@media (prefers-reduced-motion: reduce) {
    #l13-loading .l13-door,
    #l13-loading .l13-sequence-track,
    #l13-loading .l13-shaft { animation: none !important; }
}
#level-thirteen-container canvas { display: block; }
#level-thirteen-container .l13-counters {
    position: absolute;
    top: 20px;
    left: 20px;
    display: flex;
    gap: 20px;
    z-index: 10;
    pointer-events: none;
}
#level-thirteen-container .l13-counter-box {
    background: rgba(0, 0, 0, 0.7);
    border: 8px solid #fff;
    padding: 0 35px;
    color: #fff;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.11);
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 200px;
    transition: all 0.3s ease;
    user-select: none;
}
#level-thirteen-container .l13-level-label {
    font-size: 2em;
    margin: 0;
    line-height: 1;
    text-shadow: none;
    font-weight: 800;
    letter-spacing: 3px;
    transition: all 0.3s ease;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
}
#l13-crosshair-wrapper {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 10;
}
#l13-crosshair {
    position: absolute;
    top: 0; left: 0;
    width: 20px; height: 20px;
    transition: transform 0.15s ease-out;
}
#l13-crosshair::before,
#l13-crosshair::after {
    content: '';
    position: absolute;
    background: #ffffff;
}
#l13-crosshair::before {
    left: 50%; top: 0;
    width: 2px; height: 20px;
    transform: translateX(-50%);
    transition: width 0.15s ease-out;
}
#l13-crosshair::after {
    top: 50%; left: 0;
    width: 20px; height: 2px;
    transform: translateY(-50%);
    transition: height 0.15s ease-out;
}
#l13-crosshair-wrapper.active #l13-crosshair { transform: rotate(90deg) scale(1.35); }
#l13-crosshair-wrapper.active #l13-crosshair::before { width: 2.2px; }
#l13-crosshair-wrapper.active #l13-crosshair::after  { height: 2.2px; }
.l13-crosshair-particles {
    position: absolute;
    top: 50%; left: 50%;
    width: 80px; height: 80px;
    margin: -40px 0 0 -40px;
    pointer-events: none;
}
.l13-crosshair-particles .l13-particle {
    position: absolute;
    width: 2px; height: 2px;
    top: 50%; left: 50%;
    margin: -1px 0 0 -1px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 0 4px #fff, 0 0 8px rgba(255,255,255,.5);
    animation: l13-particle-dust ease-out forwards;
}
@keyframes l13-particle-dust {
    0%   { transform: translate(0,0) scale(.2); opacity: 0; }
    12%  { transform: translate(var(--dx2,0px),var(--dy2,0px)) scale(.8); opacity: .8; }
    35%  { transform: translate(var(--dx,0px),var(--dy,0px)) scale(1); opacity: 1; }
    75%  { transform: translate(var(--dx,0px),var(--dy,0px)) scale(1); opacity: .85; }
    100% { transform: translate(calc(var(--dx,0px)*1.2),calc(var(--dy,0px)*1.35)) scale(.15); opacity: 0; }
}
.l13-overlay {
    position: fixed;
    inset: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(0,0,0,.8);
    z-index: 30;
    color: #fff;
}
.l13-overlay[hidden] { display: none !important; }
.l13-overlay-content {
    background: #1a1a1a;
    padding: 20px;
    border-radius: 4px;
    max-width: 90%; max-height: 90%;
    overflow-y: auto;
    position: relative;
    text-align: center;
}
.l13-overlay-content h2 { margin-top: 0; }
.l13-close {
    position: absolute; top: 10px; right: 10px;
    background: transparent; border: none; color: #fff; font-size: 24px; cursor: pointer;
}
.l13-door-popup-content {
    max-width: 520px; width: 92%; padding: 0;
    background: linear-gradient(165deg, #1c1915 0%, #0f0d0b 100%);
    border: 1px solid rgba(180,140,80,.4);
    border-radius: 8px;
    box-shadow: 0 24px 48px rgba(0,0,0,.6), 0 0 0 1px rgba(255,255,255,.03);
}
.l13-door-popup-inner {
    padding: 2.5rem 2.25rem 2rem;
    text-align: center;
    display: flex; flex-direction: column; align-items: center;
}
.l13-door-close {
    position: absolute; top: 1rem; right: 1rem;
    background: transparent; border: none; color: rgba(255,255,255,.6);
    font-size: 1.5rem; cursor: pointer; padding: .25rem; line-height: 1; transition: color .2s;
}
.l13-door-close:hover { color: #fff; }
.l13-door-title {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-size: 1.85rem; font-weight: 600;
    margin: 0 0 1.25rem; color: #e8e0d4; letter-spacing: .02em;
}
.l13-door-hint {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-size: 1.65rem; line-height: 1.55;
    color: #c4b8a8; margin: 0 0 1.5rem;
    font-style: italic; text-align: center; white-space: pre-line;
}
.l13-door-password-area {
    display: flex; flex-direction: column; gap: 1.5rem; align-items: center;
    margin-bottom: 1rem; width: 100%;
}
.l13-door-input {
    width: 100%; max-width: 320px;
    padding: .85rem 1rem; font-size: 1.1rem; font-family: inherit;
    background: rgba(0,0,0,.4); border: 1px solid rgba(180,140,80,.35);
    border-radius: 6px; color: #f0ebe0; outline: none;
    transition: border-color .2s, box-shadow .2s;
}
.l13-door-input::placeholder { color: rgba(196,184,168,.5); }
.l13-door-input:focus { border-color: rgba(180,140,80,.7); box-shadow: 0 0 0 2px rgba(180,140,80,.15); }
.l13-door-submit {
    padding: .75rem 2rem; font-size: 1rem; font-weight: 600; font-family: inherit;
    background: linear-gradient(180deg, #8b6914 0%, #6b5010 100%);
    border: 1px solid rgba(180,140,80,.5); border-radius: 6px; color: #f5ecd8;
    cursor: pointer; transition: transform .15s, box-shadow .2s;
}
.l13-door-submit:hover { box-shadow: 0 4px 12px rgba(139,105,20,.35); transform: translateY(-1px); }
.l13-door-submit:active { transform: translateY(0); }
.l13-door-message { min-height: 1.4em; font-size: 1rem; color: #e88; margin: 0; }

@keyframes l13-door-shake {
    0%,100% { transform: translateX(0); }
    15% { transform: translateX(-6px); }
    30% { transform: translateX(6px); }
    45% { transform: translateX(-4px); }
    60% { transform: translateX(4px); }
    75% { transform: translateX(-2px); }
    90% { transform: translateX(2px); }
}
.l13-door-input.l13-door-shake,
.l13-door-submit.l13-door-shake { animation: l13-door-shake .5s ease-in-out; }
.l13-boecklin-popup-content { max-width: 640px; width: 94%; }
.l13-boecklin-popup-content .l13-door-popup-inner {
    padding: 3rem 2.5rem 2.5rem; min-height: 180px; justify-content: center;
}
#l13-boecklin-hint {
    font-size: 1.75rem; line-height: 1.55; text-align: center;
    margin: 0 auto; white-space: pre-line;
    font-family: 'Cormorant Garamond', Georgia, serif; font-style: italic; color: #c4b8a8;
}
.l13-boecklin-video { margin-top: 2rem; display: flex; justify-content: center; width: 100%; min-height: 200px; }
.l13-boecklin-video-inner {
    position: relative; width: 100%; max-width: 560px; margin: 0 auto;
    padding-bottom: 56.25%; height: 0; overflow: hidden;
    border-radius: 8px; box-shadow: 0 12px 32px rgba(0,0,0,.7);
}
.l13-boecklin-video-inner iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.l13-book-overlay {
    position: fixed; left: 0; right: 0; bottom: 0; top: auto;
    height: 40%;
    display: flex; justify-content: flex-end; align-items: flex-end;
    pointer-events: none; z-index: 25;
    padding-bottom: 4rem; padding-right: 34%;
}
.l13-book-overlay[hidden] { display: none !important; }
.l13-book-overlay > * { pointer-events: auto; }
.l13-book-text-wrap { position: relative; display: inline-block; text-align: center; }
.l13-book-filename {
    font-family: 'Caveat', cursive;
    font-weight: 600; font-size: clamp(1.55rem, 4.2vw, 2.2rem);
    color: #2c1810;
    display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 3;
    line-clamp: 3; line-height: 1.35; text-align: center;
    max-width: 14em; word-break: break-word;
    padding-right: 2.2em; overflow: hidden; white-space: pre-line;
}
.l13-book-close {
    position: absolute; top: -.35rem; right: 0;
    background: transparent; border: none; color: #3d2814;
    font-family: 'Caveat', cursive; font-weight: 700; font-size: 2.5rem;
    cursor: pointer; line-height: 1; padding: .15rem;
}
.l13-book-close:hover { color: #1a0f08; }
.l13-book-overlay.fond-sombre .l13-book-filename { color: #e4d4b8; }
.l13-book-overlay.fond-sombre .l13-book-close     { color: #e8dcc8; }
.l13-book-overlay.fond-sombre .l13-book-close:hover { color: #f2ead8; }

@media (max-width: 1400px) {
    .l13-book-overlay { padding-right: 20%; }
}
.l13-start-hint {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    padding: 10px 28px;
    background: rgba(0, 0, 0, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.95rem;
    font-family: system-ui, -apple-system, sans-serif;
    letter-spacing: 0.08em;
    border-radius: 4px;
    z-index: 20;
    pointer-events: none;
    animation: l13-hint-fade 4s ease-out forwards;
}
@keyframes l13-hint-fade {
    0%   { opacity: 0; transform: translateX(-50%) translateY(6px); }
    15%  { opacity: 1; transform: translateX(-50%) translateY(0); }
    70%  { opacity: 1; }
    100% { opacity: 0; }
}
.l13-inactivity-hint {
    position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%);
    padding: 12px 24px; background: rgba(0,0,0,.6); color: #fff;
    font-size: 1rem; border-radius: 6px; z-index: 1000; pointer-events: none;
    transition: opacity 0.3s ease;
}
#level-thirteen-container .audio-btn,
.audio-popup-backdrop.theme-13 .audio-popup {
    --ac-color: #ffffff;
    --ac-bg: rgba(0, 0, 0, 0.7);
    --ac-border-w: 8px;
    --ac-border-style: solid;
    --ac-glow: 0 0 15px rgba(0, 0, 0, 0.11);
    --ac-font: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
    --ac-symbols: '❧ ✦ ❧';
}
.audio-popup-backdrop.theme-13 .audio-popup-title {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-weight: 600;
    text-transform: none;
    letter-spacing: 0.02em;
}
#l13-finale-outro {
    position: fixed;
    inset: 0;
    z-index: 10060;
    pointer-events: none;
}
#l13-finale-outro .l13-finale-outro-vignette {
    position: absolute;
    inset: 0;
    pointer-events: none;
}
#l13-finale-outro .l13-finale-outro-solid {
    position: absolute;
    inset: 0;
    background: #000;
    opacity: 0;
    pointer-events: none;
}