/* Loader app Flutter /app/ — aligné sur le site vitrine (cdb-loader.js + cdb-site.css) */
:root {
    --cdb-bg: #040913;
    --cdb-text: #e8ecf1;
    --cdb-muted: rgba(232, 236, 241, 0.72);
    --cdb-accent: #ff9b39;
    --font-body: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

html.cdb-is-loading {
    overflow: hidden;
}

.cdb-loader {
    position: fixed;
    inset: 0;
    z-index: 2147483646;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--cdb-bg, #040913);
    color: var(--cdb-text);
    transition: opacity 0.28s ease, visibility 0.28s ease;
}

.cdb-loader.is-done {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.cdb-loader.is-overspeed .cdb-loader__speedo-bezel {
    filter: drop-shadow(0 0 16px rgba(255, 82, 82, 0.55));
}

.cdb-loader.is-blink-on .cdb-loader__speedo-bezel {
    filter: drop-shadow(0 0 18px rgba(255, 82, 82, 0.75));
}

.cdb-loader.is-blink-on .cdb-loader__speedo-dial path[stroke="#c62828"] {
    stroke: #ff1744;
    opacity: 1;
}

.cdb-loader.is-exploding .cdb-loader__panel {
    animation: cdb-loader-panel-burst 0.48s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.cdb-loader.is-exploding .cdb-loader__rig {
    animation: cdb-loader-rig-zoom 0.48s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.cdb-loader.is-exploding .cdb-loader__road {
    opacity: 0;
    transition: opacity 0.2s ease;
}

.cdb-loader__fx {
    position: fixed;
    inset: 0;
    z-index: 4;
    pointer-events: none;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cdb-loader__fx-flash,
.cdb-loader__fx-ring {
    position: absolute;
    border-radius: 50%;
    opacity: 0;
}

.cdb-loader__fx.is-active .cdb-loader__fx-flash {
    width: min(120vmax, 900px);
    height: min(120vmax, 900px);
    background: radial-gradient(circle, rgba(255, 155, 57, 0.85) 0%, rgba(255, 87, 34, 0.45) 35%, transparent 68%);
    animation: cdb-loader-flash 0.48s ease-out forwards;
}

.cdb-loader__fx.is-active .cdb-loader__fx-ring {
    width: 280px;
    height: 280px;
    border: 3px solid rgba(255, 200, 100, 0.9);
    box-shadow: 0 0 40px rgba(255, 155, 57, 0.6);
    animation: cdb-loader-ring 0.48s ease-out forwards;
}

.cdb-loader__fx-spark {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 6px;
    height: 6px;
    margin: -3px 0 0 -3px;
    border-radius: 50%;
    background: #ffc107;
    opacity: 0;
    box-shadow: 0 0 8px rgba(255, 193, 7, 0.8);
}

.cdb-loader__fx.is-active .cdb-loader__fx-spark {
    animation: cdb-loader-spark 0.48s ease-out forwards;
    animation-delay: calc(var(--i) * 0.02s);
}

@keyframes cdb-loader-spark {
    0% { opacity: 0; transform: rotate(calc(var(--i) * 36deg)) translateY(16px); }
    25% { opacity: 1; }
    100% { opacity: 0; transform: rotate(calc(var(--i) * 36deg)) translateY(-130px) scale(0.2); }
}

@keyframes cdb-loader-panel-burst {
    0% { transform: scale(1); opacity: 1; }
    40% { transform: scale(1.08); opacity: 1; }
    100% { transform: scale(1.35); opacity: 0; }
}

@keyframes cdb-loader-rig-zoom {
    0% { transform: translateX(-50%) scale(1); opacity: 1; }
    100% { transform: translateX(-50%) scale(1.4) translateY(-40px); opacity: 0; }
}

@keyframes cdb-loader-flash {
    0% { opacity: 0; transform: scale(0.2); }
    25% { opacity: 1; transform: scale(1); }
    100% { opacity: 0; transform: scale(2.2); }
}

@keyframes cdb-loader-ring {
    0% { opacity: 0; transform: scale(0.4); }
    30% { opacity: 1; }
    100% { opacity: 0; transform: scale(2.8); }
}

.cdb-loader__road {
    position: absolute;
    inset: 0;
    overflow: hidden;
    opacity: 0.35;
}

.cdb-loader__lane {
    position: absolute;
    left: -20%;
    right: -20%;
    height: 3px;
    background: repeating-linear-gradient(
        90deg,
        var(--cdb-accent) 0,
        var(--cdb-accent) 24px,
        transparent 24px,
        transparent 44px
    );
    animation: cdb-loader-road 1.1s linear infinite;
}

.cdb-loader__lane:first-child {
    top: 58%;
    transform: rotate(-2deg);
}

.cdb-loader__lane--slow {
    top: 64%;
    opacity: 0.55;
    animation-duration: 1.6s;
    transform: rotate(-2deg);
}

@keyframes cdb-loader-road {
    from { transform: translateX(0) rotate(-2deg); }
    to { transform: translateX(-44px) rotate(-2deg); }
}

.cdb-loader__panel {
    position: relative;
    z-index: 2;
    width: min(92vw, 380px);
    padding: 0 0 0.5rem;
    text-align: center;
}

.cdb-loader__speedo {
    margin: 0 auto 0.75rem;
}

.cdb-loader__speedo-bezel {
    position: relative;
    width: min(100%, 200px);
    margin: 0 auto;
    filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.55));
}

.cdb-loader__speedo-dial {
    display: block;
    width: 100%;
    height: auto;
}

.cdb-loader__tagline {
    margin: 0;
    font-family: var(--font-body);
    font-size: 0.88rem;
    color: var(--cdb-muted);
    letter-spacing: 0.04em;
}

.cdb-loader__rig {
    position: absolute;
    z-index: 3;
    left: 50%;
    bottom: 22%;
    width: min(220px, 46vw);
    transform: translateX(-50%);
    transition: transform 0.12s ease-out;
    filter: drop-shadow(0 12px 28px rgba(0, 0, 0, 0.55));
}

.cdb-loader__rig img {
    display: block;
    width: 100%;
    height: auto;
    animation: cdb-loader-rig-bob 1.4s ease-in-out infinite;
}

@keyframes cdb-loader-rig-bob {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

html[data-theme="light"] .cdb-loader {
    background: #eef2f8;
}

@media (prefers-reduced-motion: reduce) {
    .cdb-loader,
    .cdb-loader__rig,
    .cdb-loader__rig img,
    .cdb-loader__lane {
        animation: none !important;
    }
}