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

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

body {
    overflow-x: hidden;
}

::selection {
    background: rgba(13, 148, 136, 0.4);
    color: white;
}

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

#navbar.scrolled {
    background: rgba(8, 14, 26, 0.92);
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: #2dd4bf;
    transition: width 0.3s ease;
}

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

.nav-link:hover {
    color: #2dd4bf !important;
}

/* ===== Mobile Menu ===== */
#mobileMenu.open {
    opacity: 1;
    pointer-events: all;
}

.mobile-link {
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.4s ease;
}

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

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

/* ===== Hero Animations ===== */
.hero-subtitle {
    animation: slideUp 0.8s ease forwards;
    animation-delay: 0.2s;
}

.hero-title {
    animation: slideUp 0.8s ease forwards;
    animation-delay: 0.4s;
}

.hero-desc {
    animation: slideUp 0.8s ease forwards;
    animation-delay: 0.6s;
}

.hero-cta {
    animation: slideUp 0.8s ease forwards;
    animation-delay: 0.8s;
}

.hero-stats {
    animation: slideUp 0.8s ease forwards;
    animation-delay: 1s;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Section Animations ===== */
.section-label {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.section-title {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease 0.1s;
}

.section-label.visible,
.section-title.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Service Cards ===== */
.service-card {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease, border-color 0.5s ease, box-shadow 0.5s ease;
}

.service-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.service-card:hover {
    box-shadow: 0 20px 60px rgba(13, 148, 136, 0.12);
}

/* ===== Gallery Items ===== */
.gallery-item {
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.gallery-item.visible {
    opacity: 1;
    transform: scale(1);
}

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

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

::-webkit-scrollbar-track {
    background: #080e1a;
}

::-webkit-scrollbar-thumb {
    background: #1e293b;
    border-radius: 4px;
}

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

/* ===== Responsive ===== */
@media (max-width: 768px) {
    html {
        scroll-padding-top: 70px;
    }
}

/* ===== Focus Styles ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid #2dd4bf;
    outline-offset: 2px;
}