/* ===== Base & Utilities ===== */
html {
    scroll-behavior: smooth;
}

body {
    overflow-x: hidden;
}

::selection {
    background: rgba(212, 175, 55, 0.3);
    color: #fefdf8;
}

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

#navbar.scrolled {
    background: rgba(2, 44, 34, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: linear-gradient(90deg, #d4af37, #b8941f);
    transition: width 0.3s ease;
}

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

/* ===== Mobile Menu ===== */
.mobile-line {
    transition: all 0.3s ease;
}

#mobile-toggle.active .mobile-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

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

#mobile-toggle.active .mobile-line:nth-child(3) {
    width: 24px;
    transform: rotate(-45deg) translate(4px, -4px);
}

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

.mobile-link {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

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

#mobile-menu.active .mobile-link:nth-child(1) { transition-delay: 0.1s; }
#mobile-menu.active .mobile-link:nth-child(2) { transition-delay: 0.15s; }
#mobile-menu.active .mobile-link:nth-child(3) { transition-delay: 0.2s; }
#mobile-menu.active .mobile-link:nth-child(4) { transition-delay: 0.25s; }
#mobile-menu.active .mobile-link:nth-child(5) { transition-delay: 0.3s; }

/* ===== Service Cards ===== */
.service-card {
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.5s ease;
}

.service-card:hover {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 40px rgba(212, 175, 55, 0.05);
}

/* ===== Scroll Animations ===== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

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

.gold-shimmer {
    background: linear-gradient(90deg, #d4af37 0%, #f5e6a3 50%, #d4af37 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 4s linear infinite;
}

/* ===== Floating Animation ===== */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.float {
    animation: float 4s ease-in-out infinite;
}

/* ===== Pulse Ring ===== */
@keyframes pulse-ring {
    0% { transform: scale(0.8); opacity: 0.5; }
    50% { transform: scale(1.2); opacity: 0; }
    100% { transform: scale(0.8); opacity: 0.5; }
}

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

::-webkit-scrollbar-track {
    background: #022c22;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #d4af37, #b8941f);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #e5c158, #d4af37);
}

/* ===== Select Dropdown ===== */
select option {
    background: #064e3b;
    color: #fdf9f0;
}

/* ===== Responsive Adjustments ===== */
@media (max-width: 768px) {
    .font-serif {
        line-height: 1.2;
    }
}