/* ============================================
   Charley's Dairy Freeze — Custom Styles
   ============================================ */

/* Base & Smooth Scrolling */
html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

/* Selection Color */
::selection {
    background-color: rgba(160, 23, 62, 0.4);
    color: #fff8f7;
}

/* ============================================
   Navbar
   ============================================ */
#navbar {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

#navbar.scrolled {
    background-color: rgba(10, 14, 23, 0.92);
    border-bottom: 1px solid rgba(113, 24, 56, 0.2);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

#navbar:not(.scrolled) {
    background-color: transparent;
}

/* ============================================
   Hero Section
   ============================================ */
#hero {
    position: relative;
}

/* ============================================
   Menu Cards
   ============================================ */
.menu-card {
    transform: translateY(0);
    will-change: transform, box-shadow;
}

.menu-card:hover {
    transform: translateY(-4px);
}

/* ============================================
   Quality Cards
   ============================================ */
.quality-card {
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.quality-card:hover {
    transform: translateY(-4px);
    border-color: rgba(160, 23, 62, 0.5);
    box-shadow: 0 20px 60px rgba(113, 24, 56, 0.1);
}

/* ============================================
   Scroll Reveal Animations
   (Progressive enhancement — content visible without JS)
   ============================================ */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 1;
        transform: translateY(0);
        transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    /* Stagger children */
    .reveal-stagger > * {
        opacity: 0;
        transform: translateY(20px);
        transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .reveal-stagger.revealed > *:nth-child(1) { transition-delay: 0.05s; opacity: 1; transform: translateY(0); }
    .reveal-stagger.revealed > *:nth-child(2) { transition-delay: 0.1s; opacity: 1; transform: translateY(0); }
    .reveal-stagger.revealed > *:nth-child(3) { transition-delay: 0.15s; opacity: 1; transform: translateY(0); }
    .reveal-stagger.revealed > *:nth-child(4) { transition-delay: 0.2s; opacity: 1; transform: translateY(0); }
    .reveal-stagger.revealed > *:nth-child(5) { transition-delay: 0.25s; opacity: 1; transform: translateY(0); }
    .reveal-stagger.revealed > *:nth-child(6) { transition-delay: 0.3s; opacity: 1; transform: translateY(0); }
}

/* ============================================
   Mobile Menu
   ============================================ */
#mobile-menu {
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mobile-link {
    display: block;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(55, 65, 81, 0.5);
}

.mobile-link:last-child {
    border-bottom: none;
}

/* ============================================
   Focus Styles (Accessibility)
   ============================================ */
a:focus-visible,
button:focus-visible {
    outline: 2px solid rgba(217, 64, 104, 0.8);
    outline-offset: 2px;
    border-radius: 4px;
}

/* ============================================
   Responsive Adjustments
   ============================================ */
@media (max-width: 768px) {
    .font-serif {
        font-size: clamp(2rem, 8vw, 3.5rem);
    }
}

/* ============================================
   Subtle Grain Texture Overlay (optional depth)
   ============================================ */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.015;
    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)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px 256px;
}