/* ============================================
   Books & More — Custom Styles
   Premium Dark Luxury | Emerald + Cream
   ============================================ */

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    overflow-x: hidden;
}

::selection {
    background: rgba(16, 185, 129, 0.3);
    color: #faf5eb;
}

/* ---------- Navbar ---------- */
#navbar {
    background: transparent;
    transition: background 0.4s ease, backdrop-filter 0.4s ease, box-shadow 0.4s ease;
}

#navbar.scrolled {
    background: rgba(10, 15, 13, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(201, 162, 39, 0.08), 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* ---------- Mobile Menu ---------- */
.mobile-link {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease, color 0.3s ease;
}

#mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.25s; }

/* Menu Toggle Animation */
.menu-line {
    transition: transform 0.3s ease, opacity 0.3s ease;
}

#menu-toggle.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(3px, 3px);
}

#menu-toggle.active .menu-line:nth-child(2) {
    opacity: 0;
}

#menu-toggle.active .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(3px, -3px);
    width: 1.25rem;
}

/* ---------- Hero Animations ---------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-fade-in {
    animation: fadeIn 1s ease forwards;
}

/* ---------- Scroll Reveal ---------- */
.scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

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

@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
        opacity: 0;
        transform: translateY(40px);
        transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
    }
    
    .scroll-reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---------- Card Hover Effects ---------- */
.group:hover .group-hover\:scale-105 {
    transform: scale(1.05);
}

/* ---------- Button Focus ---------- */
button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid rgba(16, 185, 129, 0.6);
    outline-offset: 2px;
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #0a0f0d;
}

::-webkit-scrollbar-thumb {
    background: #1e2d24;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #2a3f30;
}

/* ---------- Gold Shimmer on Hover (subtle) ---------- */
@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

/* ---------- Responsive adjustments ---------- */
@media (max-width: 768px) {
    .font-serif {
        line-height: 1.15;
    }
}

/* ---------- Loading state for images ---------- */
img {
    background-color: #111a15;
}