/* ===== BASE & RESET ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Inter', system-ui, sans-serif;
    background-color: #0a1a2e;
    color: #d9e2ec;
    line-height: 1.6;
}

::selection {
    background-color: rgba(234, 179, 8, 0.3);
    color: #f0f4f8;
}

/* ===== NAVBAR ===== */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #eab308;
    transition: width 0.3s ease;
}

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

.nav-link:hover {
    color: #facc15;
}

/* Navbar scroll state */
.navbar-scrolled {
    background: rgba(10, 26, 46, 0.95) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(234, 179, 8, 0.1);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* ===== MOBILE MENU ===== */
.mobile-link {
    position: relative;
}

/* ===== SERVICE CARDS ===== */
.service-card {
    position: relative;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94), 
                border-color 0.5s ease,
                box-shadow 0.5s ease;
}

.service-card:hover {
    box-shadow: 0 20px 60px rgba(234, 179, 8, 0.08);
}

/* ===== GALLERY ===== */
.gallery-item {
    position: relative;
    cursor: pointer;
}

.gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10, 26, 46, 0.4) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.4s ease;
    border-radius: 16px;
}

.gallery-item:hover::after {
    opacity: 1;
}

/* ===== SCROLL REVEAL (progressive enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                    transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

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

    .reveal:nth-child(2) { transition-delay: 0.1s; }
    .reveal:nth-child(3) { transition-delay: 0.2s; }
    .reveal:nth-child(4) { transition-delay: 0.3s; }
    .reveal:nth-child(5) { transition-delay: 0.4s; }
}

/* Fallback: ensure content is always visible */
.no-js .reveal,
.js .reveal {
    /* JS will add 'revealed' class; without JS, content stays visible via default styles */
}

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

::-webkit-scrollbar-track {
    background: #0a1a2e;
}

::-webkit-scrollbar-thumb {
    background: #334e68;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #eab308;
}

/* ===== SELECTION ===== */
::selection {
    background: rgba(234, 179, 8, 0.3);
    color: #f0f4f8;
}

/* ===== FORM FOCUS STATES ===== */
input:focus,
select:focus,
textarea:focus {
    border-color: rgba(234, 179, 8, 0.5) !important;
    box-shadow: 0 0 0 3px rgba(234, 179, 8, 0.1) !important;
}

/* ===== ANIMATIONS ===== */
@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(12deg); }
    50% { transform: translateY(-10px) rotate(12deg); }
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 20px rgba(234, 179, 8, 0.2); }
    50% { box-shadow: 0 0 40px rgba(234, 179, 8, 0.4); }
}

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