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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== NAVBAR ===== */
#navbar {
    background: transparent;
    transition: background 0.3s ease, box-shadow 0.3s ease;
}

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.97);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(10px);
}

#navbar.scrolled .font-heading {
    color: #0f172a;
}

#navbar.scrolled a:not(.bg-teal-600) {
    color: #475569;
}

#navbar.scrolled a:not(.bg-teal-600):hover {
    color: #0d9488;
}

/* ===== MOBILE MENU ===== */
#mobile-menu.show {
    display: block;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.mobile-link {
    display: block;
    padding: 0.5rem 0;
    border-bottom: 1px solid #f1f5f9;
}

.mobile-link:last-child {
    border-bottom: none;
}

/* Hamburger animation */
.menu-line {
    transition: all 0.3s ease;
}

#menu-toggle.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

#menu-toggle.active .menu-line:nth-child(3) {
    width: 24px;
    margin-left: 0;
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== HERO FLOATING CARDS ===== */
.floating-card {
    animation: float1 4s ease-in-out infinite;
}

.floating-card-2 {
    animation: float2 5s ease-in-out infinite;
}

.floating-card-3 {
    animation: float3 4.5s ease-in-out infinite;
}

.floating-card-4 {
    animation: float4 5.5s ease-in-out infinite;
}

@keyframes float1 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}

@keyframes float2 {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-8px) rotate(1deg); }
}

@keyframes float3 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
}

@keyframes float4 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* ===== SERVICE CARDS ===== */
.service-card {
    position: relative;
    overflow: hidden;
}

.service-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #0d9488, #2dd4bf);
    transform: scaleX(0);
    transition: transform 0.4s ease;
    transform-origin: left;
}

.service-card:hover::after {
    transform: scaleX(1);
}

/* ===== GALLERY ===== */
.gallery-item {
    height: 240px;
}

.gallery-item.col-span-2 {
    height: 504px;
}

@media (min-width: 1024px) {
    .gallery-item {
        height: 280px;
    }
    .gallery-item.col-span-2 {
        height: 584px;
    }
}

/* ===== SCROLL REVEAL ===== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
    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; }

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
    }
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    .floating-card,
    .floating-card-2,
    .floating-card-3,
    .floating-card-4 {
        animation: float1 4s ease-in-out infinite;
    }
    .floating-card-2 { animation-name: float2; }
    .floating-card-3 { animation-name: float3; }
    .floating-card-4 { animation-name: float4; }
}

@media (prefers-reduced-motion: reduce) {
    .floating-card,
    .floating-card-2,
    .floating-card-3,
    .floating-card-4 {
        animation: none;
    }
    .reveal {
        opacity: 1;
        transform: none;
    }
    html {
        scroll-behavior: auto;
    }
}

/* ===== SELECTION ===== */
::selection {
    background: #99f6e4;
    color: #042f2e;
}

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

::-webkit-scrollbar-track {
    background: #f8fafc;
}

::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #0d9488;
}