/* ===== Base & Typography ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

::selection {
    background: #7fdbca;
    color: #0a2540;
}

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

#navbar.scrolled {
    background: rgba(254, 253, 248, 0.92);
    backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 rgba(10, 37, 64, 0.06);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #7fdbca;
    transition: width 0.3s ease;
    border-radius: 1px;
}

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

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

.mobile-link {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.3s ease, transform 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 .mobile-link:nth-child(6) { transition-delay: 0.3s; }

/* Mobile menu button animation */
.menu-line {
    transition: transform 0.3s ease, opacity 0.3s ease;
}

#mobile-menu-btn.active .menu-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

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

#mobile-menu-btn.active .menu-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
    width: 1.25rem;
}

/* ===== Hero Animations ===== */
.hero-content {
    opacity: 0;
    transform: translateY(32px);
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.2s;
}

.hero-images {
    opacity: 0;
    transform: translateY(32px);
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.5s;
}

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Scroll Reveal ===== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.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; }

/* ===== Site Cards ===== */
.site-card {
    transform: translateY(0);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.site-card:hover {
    transform: translateY(-4px);
}

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

::-webkit-scrollbar-track {
    background: #fdf9ee;
}

::-webkit-scrollbar-thumb {
    background: #a8e0cf;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #7fdbca;
}

/* ===== Form Styles ===== */
select option {
    background: #fefdf8;
    color: #0a2540;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .font-serif {
        line-height: 1.1;
    }
}