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

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

body {
    margin: 0;
    overflow-x: hidden;
}

::selection {
    background: rgba(212, 168, 83, 0.3);
    color: #F5F0E8;
}

/* ===== Scroll Reveal (progressive enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
    .reveal-up,
    .reveal-left,
    .reveal-right {
        opacity: 1;
        transform: none;
        transition: opacity 0.7s ease, transform 0.7s ease;
    }

    .reveal-up.revealed,
    .reveal-left.revealed,
    .reveal-right.revealed {
        opacity: 1;
        transform: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .reveal-up,
    .reveal-left,
    .reveal-right {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ===== Navbar ===== */
#navbar {
    background: transparent;
}

#navbar.scrolled {
    background: rgba(10, 15, 13, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px)；
    border-bottom: 1px solid rgba(26, 37, 32, 0.8);
    box-shadow: 0 4px 40px rgba(0, 0, 0, 0.3);
}

#navbar.scrolled .menu-line {
    background: #F5F0E8;
}

/* ===== Mobile Menu ===== */
.mobile-link {
    opacity: 1;
    transform: none;
    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: 0.05s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.25s; }

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

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

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

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

#menu-btn.active .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(3px, -3px);
    width: 1.25rem;
    margin-right: 0;
}

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

/* ===== Image hover parallax feel ===== */
.group img {
    will-change: transform;
}

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

::-webkit-scrollbar-track {
    background: #0A0F0D;
}

::-webkit-scrollbar-thumb {
    background: #1A2520;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #2A3530;
}

/* ===== Focus styles ===== */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #D4A853;
    outline-offset: 3px;
    border-radius: 4px;
}

/* ===== Form styles ===== */
input, textarea {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(212, 168, 83, 0.2);
    color: #F5F0E8;
    border-radius: 8px;
    padding: 12px 16px;
    font-family: inherit;
    font-size: 0.95rem;
    width: 100%;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

input::placeholder, textarea::placeholder {
    color: #8A9A8E;
}

input:focus, textarea:focus {
    outline: none;
    border-color: rgba(212, 168, 83, 0.6);
    box-shadow: 0 0 0 3px rgba(212, 168, 83, 0.1);
}

/* ===== Map filter override (light mode map in dark context) ===== */
iframe[src*="google.com/maps"] {
    filter: invert(90%) hue-rotate(180deg) brightness(0.95) contrast(0.95);
}

/* ===== Responsive adjustments ===== */
@media (max-width: 640px) {
    .font-display {
        line-height: 1.1;
    }
}