/*
 * Shared EVSmartRoute loading presentation.
 * Startup and route calculation use one component and one animation language.
 */
.esr-loader {
    position: fixed;
    inset: 0;
    z-index: 3000;
    display: grid;
    place-items: center;
    padding: 24px;
    color: #f1f5f9;
    background: #0b0f19;
    opacity: 1;
    visibility: visible;
    transition: opacity .28s ease, visibility .28s ease;
}

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

.route-calc-overlay.esr-loader {
    z-index: 1550;
    display: none;
    pointer-events: auto;
    background: rgba(11, 15, 25, .62);
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
}

.route-calc-overlay.esr-loader.is-active {
    display: grid;
}

.route-calc-overlay.esr-loader[hidden] {
    display: none !important;
}

.esr-loader__core {
    position: relative;
    display: grid;
    width: min(360px, calc(100vw - 48px));
    min-height: 196px;
    place-items: center;
    align-content: center;
    gap: 11px;
    padding: 30px 24px 24px;
    text-align: center;
}

.esr-loader--route .esr-loader__core {
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: 24px;
    background: rgba(11, 15, 25, .82);
    box-shadow: 0 28px 80px rgba(0, 0, 0, .38);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
}

.esr-loader__logo {
    position: relative;
    z-index: 2;
    width: 92px;
    height: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 16px rgba(34, 197, 94, .5));
    animation: esr-loader-logo .72s ease both;
}

.esr-loader__ring {
    position: absolute;
    z-index: 1;
    top: 5px;
    left: 50%;
    width: 132px;
    height: 132px;
    border: 1px solid rgba(14, 165, 233, .2);
    border-top-color: #22c55e;
    border-right-color: #0ea5e9;
    border-radius: 50%;
    box-shadow:
        0 0 30px rgba(14, 165, 233, .14),
        inset 0 0 24px rgba(34, 197, 94, .07);
    transform: translateX(-50%);
    animation: esr-loader-ring .72s cubic-bezier(.2, .7, .2, 1) both;
}

.esr-loader__battery {
    position: relative;
    z-index: 2;
    width: 132px;
    height: 8px;
    margin-top: 30px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: 99px;
    background: rgba(255, 255, 255, .05);
}

.esr-loader__battery > span {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #ef4444, #f59e0b, #22c55e);
    box-shadow: 0 0 14px #22c55e;
    transform: scaleX(0);
    transform-origin: left;
    animation: esr-loader-charge .7s cubic-bezier(.2, .75, .25, 1) forwards;
}

.esr-loader__core > strong {
    position: relative;
    z-index: 2;
    margin-top: 3px;
    color: #f8fafc;
    font-size: .95rem;
    font-weight: 850;
    letter-spacing: 0;
}

.esr-loader__hint {
    position: relative;
    z-index: 2;
    max-width: 300px;
    color: #94a3b8;
    font-size: .78rem;
    font-weight: 600;
    line-height: 1.45;
}

.esr-loader__core > small {
    position: relative;
    z-index: 2;
    margin-top: 2px;
    color: #6f7d90;
    font-size: .58rem;
    font-weight: 800;
    letter-spacing: .18em;
    text-transform: uppercase;
}

@keyframes esr-loader-charge {
    to { transform: scaleX(1); }
}

@keyframes esr-loader-ring {
    from { transform: translateX(-50%) rotate(0deg) scale(.94); }
    to { transform: translateX(-50%) rotate(360deg) scale(1.08); }
}

@keyframes esr-loader-logo {
    from { opacity: .2; transform: scale(.86); }
    to { opacity: 1; transform: scale(1); }
}

@media (max-width: 520px) {
    .esr-loader {
        padding: 18px;
    }

    .esr-loader__core {
        width: min(330px, calc(100vw - 36px));
        padding-inline: 18px;
    }

    .esr-loader--route .esr-loader__core {
        border-radius: 20px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .esr-loader__ring,
    .esr-loader__logo,
    .esr-loader__battery > span {
        animation-duration: .01ms;
        animation-iteration-count: 1;
    }
}