/* ==========================================================================
   Waqt Al-Hadhara - animations.css
   Scroll Reveals, Hamburger, and Mobile Navigation Drawer
   ========================================================================== */

/* ── Global Focus Styles (Accessibility) ─────────────────────────────── */
:focus-visible {
    outline: 2px solid var(--color-gold);
    outline-offset: 2px;
}

/* ── Skip to Content Link ──────────────────────────────────────────────── */
.skip-link {
    position: fixed;
    top: -100%;
    right: 50%;
    transform: translateX(50%);
    z-index: 11000;
    background: var(--color-gold);
    color: var(--color-text-dark);
    padding: 12px 24px;
    font-family: var(--font-body);
    font-weight: 700;
    text-decoration: none;
    transition: top 0.3s ease;
    border-radius: 0 0 4px 4px;
}

.skip-link:focus {
    top: 0;
}

.skip-link:not(:focus) {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
}

/* ── Page Load Overlay ──────────────────────────────────────────────────── */
.page-load-overlay {
    position: fixed;
    inset: 0;
    z-index: 10500;
    background-color: var(--color-bg-deep);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s var(--transition-ease);
    pointer-events: none;
}

html.light-mode .page-load-overlay {
    background-color: var(--color-bg-primary);
}

.page-load-overlay.loaded {
    opacity: 0;
}

.page-load-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.load-ring {
    width: 48px;
    height: 48px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-gold);
    border-radius: 50%;
    animation: loadSpin 0.8s linear infinite;
}

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

.load-text {
    font-family: var(--font-headers);
    font-size: 1.4rem;
    color: var(--color-gold);
    letter-spacing: 2px;
}

/* ── Reading Progress Bar ───────────────────────────────────────────────── */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-gold), var(--color-gold-bright));
    z-index: 10001;
    transition: width 0.1s linear;
    pointer-events: none;
}

/* ── Grain Texture Overlay (Hero bg depth) ─────────────────────────────── */
.hero-sec::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.5'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px 256px;
    mix-blend-mode: soft-light;
}

html.light-mode .hero-sec::after {
    opacity: 0.015;
}

/* ── Respect Reduced Motion ───────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .hero-bg img {
        animation: none;
    }

    .marquee-track,
    .t-track {
        animation: none !important;
    }

    html {
        scroll-behavior: auto;
    }
}

/* ──────────────────────────────────────────────
   Intersection Observer Reveal (Premium Cinematic)
────────────────────────────────────────────── */
.reveal {
    opacity: 0;
    transform: translateY(30px) scale(0.98);
    transition: opacity 1.2s cubic-bezier(0.22, 1, 0.36, 1),
                transform 1.2s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: transform, opacity;
}

.revealed {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* Staggered delay helpers - more granular for hero */
.delay-1 { transition-delay: 0.15s; }
.delay-2 { transition-delay: 0.3s; }
.delay-3 { transition-delay: 0.45s; }
.delay-4 { transition-delay: 0.6s; }
.delay-5 { transition-delay: 0.75s; }

/* ── Mobile Drawer — hidden on desktop by default ──────────────────── */
.mobile-drawer {
    display: none;
}

/* ──────────────────────────────────────────────
   Mobile Navigation Drawer (RTL — slides from right)
────────────────────────────────────────────── */
@media (max-width: 768px) {

    /* ---- Mobile Drawer (outside header — root stacking context) ---- */
    .mobile-drawer {
        display: block;
        position: fixed;
        top: 0;
        right: 0;
        left: auto;
        width: 78%;
        max-width: 300px;
        height: 100vh;
        height: -webkit-fill-available;
        background-color: var(--color-bg-primary);
        border-left: 1px solid var(--color-border);
        z-index: 1005;  /* Above overlay (1004) and site-header (1000) */
        transform: translateX(110%);
        transition: transform var(--transition-speed) var(--transition-ease);
        padding: 96px 36px 40px 36px;
        overflow-y: auto;
    }

    .mobile-drawer.open {
        transform: translateX(0);
    }

    .mobile-menu-list {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    .mobile-drawer .nav-link {
        font-size: 1.1rem;
        padding: 12px 0;
        display: block;
    }

    /* Hide desktop inline nav on mobile */
    .site-header nav {
        display: none;
    }

    /* Full-screen backdrop — root stacking context at 1004 */
    .mobile-nav-overlay {
        position: fixed;
        inset: 0;
        background-color: rgba(0, 0, 0, 0.75);
        z-index: 1004;
        opacity: 0;
        visibility: hidden;
        transition: opacity var(--transition-speed) var(--transition-ease),
                    visibility var(--transition-speed) var(--transition-ease);
    }

    html.light-mode .mobile-nav-overlay {
        background-color: rgba(0, 0, 0, 0.4);
    }

    .mobile-nav-overlay.show {
        opacity: 1;
        visibility: visible;
    }

    /* Hamburger → ✕ crosshair animation */
    .mobile-nav-toggle.open span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .mobile-nav-toggle.open span:nth-child(2) {
        opacity: 0;
        transform: scaleX(0);
    }

    .mobile-nav-toggle.open span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
}