/* ============================================
   Blue Jeans Cafe — Premium Dark Luxury Styles
   ============================================ */

/* Base & Reset */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

/* Selection */
::selection {
    background: rgba(4, 120, 87, 0.4);
    color: #f5f5dc;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #060c09;
}
::-webkit-scrollbar-thumb {
    background: #047857;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #065f46;
}

/* ============================================
   Navigation
   ============================================ */
#navbar {
    background: transparent;
    transition: background 0.5s ease, box-shadow 0.5s ease, backdrop-filter 0.5s ease;
}

#navbar.scrolled {
    background: rgba(3, 7, 5, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(212, 168, 83, 0.1);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: linear-gradient(90deg, #d4a853, transparent);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link:hover {
    color: #f5f5dc !important;
}

/* Mobile menu */
#mobile-menu {
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

.mobile-link {
    position: relative;
    transition: color 0.3s ease;
}

.mobile-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 1px;
    background: #d4a853;
    transition: width 0.3s ease;
}

.mobile-link:hover::after {
    width: 100%;
}

/* Menu toggle animation */
#menu-toggle.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}
#menu-toggle.active .menu-line:nth-child(2) {
    opacity: 0;
}
#menu-toggle.active .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
    width: 1.5rem;
}

/* ============================================
   Reveal Animations
   (Progressive enhancement — content visible without JS)
   ============================================ */
@media (prefers-reduced-motion: no-preference) {
    .reveal-up,
    .reveal-left,
    .reveal-right {
        opacity: 1;
        transform: none;
        transition: opacity 0.8s ease, transform 0.8s ease;
    }
    
    .reveal-up {
        transform: translateY(0);
    }
    .reveal-left {
        transform: translateX(0);
    }
    .reveal-right {
        transform: translateX(0);
    }
}

/* ============================================
   Gold shimmer accent
   ============================================ */
@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

.gold-shimmer {
    background: linear-gradient(90deg, #d4a853 0%, #f5e6b8 50%, #d4a853 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shimmer 4s linear infinite;
}

/* ============================================
   Card hover effects
   ============================================ */
.rounded-2xl {
    transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
}

.rounded-2xl:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 40px rgba(4, 120, 87, 0.1);
}

/* ============================================
   Button focus states
   ============================================ */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #d4a853;
    outline-offset: 3px;
    border-radius: 9999px;
}

/* ============================================
   Image loading placeholder
   ============================================ */
img {
    background: linear-gradient(135deg, #0a0f0d 0%, #060c09 100%);
}

/* ============================================
   Responsive adjustments
   ============================================ */
@media (max-width: 767px) {
    .font-serif {
        font-size: clamp(1.75rem, 5vw, 2.5rem);
    }
}