/**
 * Page loader — Rosta Basket (pallacanestro)
 */

html.is-loading {
    overflow: hidden;
}

.page-loader {
    position: fixed;
    inset: 0;
    z-index: 10060;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 28px;
    background: oklch(11% 0.02 22);
    transition: opacity 0.45s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 0.45s;
}

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

.page-loader__scene {
    position: relative;
    width: 120px;
    height: 120px;
}

/* Canestro */
.page-loader__hoop {
    position: absolute;
    top: 8px;
    left: 50%;
    width: 56px;
    height: 56px;
    margin-left: -28px;
    border: 3px solid oklch(72% 0.005 22 / 0.35);
    border-radius: 50%;
    box-shadow: inset 0 0 0 2px oklch(54% 0.20 22 / 0.15);
}

.page-loader__hoop::after {
    content: '';
    position: absolute;
    bottom: -14px;
    left: 50%;
    width: 3px;
    height: 18px;
    margin-left: -1.5px;
    background: oklch(55% 0.01 22 / 0.5);
    border-radius: 2px;
}

/* Palla */
.page-loader__ball {
    position: absolute;
    left: 50%;
    bottom: 6px;
    width: 34px;
    height: 34px;
    margin-left: -17px;
    border-radius: 50%;
    background: radial-gradient(circle at 32% 28%,
        oklch(62% 0.20 22) 0%,
        oklch(54% 0.20 22) 45%,
        oklch(42% 0.18 22) 100%);
    box-shadow: 0 8px 20px oklch(0% 0 0 / 0.35);
    animation: loader-ball-bounce 0.9s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.page-loader__ball::before {
    content: '';
    position: absolute;
    inset: 5px;
    border-radius: 50%;
    border: 2px solid oklch(30% 0.08 22 / 0.35);
    border-top-color: transparent;
    border-left-color: transparent;
    transform: rotate(-24deg);
}

.page-loader__shadow {
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 40px;
    height: 8px;
    margin-left: -20px;
    background: oklch(0% 0 0 / 0.35);
    border-radius: 50%;
    filter: blur(4px);
    animation: loader-shadow 0.9s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.page-loader__brand {
    font-family: 'Oswald', Impact, 'Arial Narrow', sans-serif;
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: oklch(96% 0.005 22);
    margin: 0;
}

.page-loader__hint {
    font-family: 'Montserrat', system-ui, sans-serif;
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: oklch(54% 0.20 22 / 0.85);
    margin: 0;
}

.page-loader__court {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 28%;
    background: linear-gradient(180deg,
        transparent 0%,
        oklch(18% 0.03 22 / 0.4) 100%);
    pointer-events: none;
}

.page-loader__court::before {
    content: '';
    position: absolute;
    bottom: 18%;
    left: 50%;
    width: min(90vw, 420px);
    height: min(90vw, 420px);
    margin-left: calc(min(90vw, 420px) / -2);
    border: 2px solid oklch(54% 0.20 22 / 0.12);
    border-radius: 50%;
    clip-path: inset(78% 0 0 0);
}

@keyframes loader-ball-bounce {
    0%, 100% {
        transform: translateY(0) scaleX(1.05) scaleY(0.95);
    }
    45% {
        transform: translateY(-52px) scaleX(0.95) scaleY(1.05);
    }
    50% {
        transform: translateY(-54px) scaleX(0.92) scaleY(1.08);
    }
}

@keyframes loader-shadow {
    0%, 100% {
        transform: scaleX(1);
        opacity: 0.45;
    }
    45% {
        transform: scaleX(0.55);
        opacity: 0.2;
    }
}

@media (prefers-reduced-motion: reduce) {
    .page-loader__ball,
    .page-loader__shadow {
        animation: none;
    }
    .page-loader__ball {
        top: 42px;
        bottom: auto;
    }
}