/* Full-page loading overlay — initial load & internal navigation */
html.site-loading {
    overflow: hidden;
}

.site-loader {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.35s ease, visibility 0.35s ease;
}

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

.site-loader-backdrop {
    position: absolute;
    inset: 0;
    background: linear-gradient(145deg, #f0f9ff 0%, #e0f2fe 35%, #fff 70%, #fef3c7 100%);
}

.site-loader-backdrop::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 20%, rgba(33, 150, 243, 0.12) 0%, transparent 45%),
        radial-gradient(circle at 80% 80%, rgba(249, 115, 22, 0.1) 0%, transparent 40%);
}

.site-loader-card {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding: 36px 44px;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    border-radius: 24px;
    box-shadow: 0 24px 64px rgba(15, 23, 42, 0.12), 0 0 0 1px rgba(255, 255, 255, 0.8);
    min-width: 220px;
}

.site-loader-logo-wrap {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(33, 150, 243, 0.18);
    border: 2px solid rgba(33, 150, 243, 0.12);
    animation: loaderLogoPulse 1.8s ease-in-out infinite;
}

.site-loader-logo-wrap img {
    width: 44px;
    height: 44px;
    object-fit: contain;
}

@keyframes loaderLogoPulse {
    0%, 100% { transform: scale(1); box-shadow: 0 8px 24px rgba(33, 150, 243, 0.18); }
    50% { transform: scale(1.04); box-shadow: 0 12px 32px rgba(33, 150, 243, 0.28); }
}

.site-loader-spinner {
    width: 48px;
    height: 48px;
    position: relative;
}

.site-loader-spinner::before,
.site-loader-spinner::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 3px solid transparent;
}

.site-loader-spinner::before {
    border-top-color: #42a5f5;
    border-right-color: #42a5f5;
    animation: loaderSpin 0.9s linear infinite;
}

.site-loader-spinner::after {
    inset: 6px;
    border-bottom-color: #f97316;
    border-left-color: #f97316;
    animation: loaderSpin 1.2s linear infinite reverse;
}

@keyframes loaderSpin {
    to { transform: rotate(360deg); }
}

.site-loader-text {
    font-family: 'Vazirmatn', 'Vazir', sans-serif;
    font-size: 14px;
    font-weight: 600;
    color: #475569;
    letter-spacing: 0.02em;
}

.site-loader-dots::after {
    content: '';
    animation: loaderDots 1.4s steps(4, end) infinite;
}

@keyframes loaderDots {
    0% { content: ''; }
    25% { content: '.'; }
    50% { content: '..'; }
    75% { content: '...'; }
}

@media (prefers-reduced-motion: reduce) {
    .site-loader-logo-wrap,
    .site-loader-spinner::before,
    .site-loader-spinner::after {
        animation: none;
    }
    .site-loader-dots::after {
        animation: none;
        content: '...';
    }
}