/* ===== Base & Typography ===== */
html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

::selection {
    background: #86efac;
    color: #0f4c75;
}

/* ===== Scroll Reveal ===== */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal[data-reveal="delay-1"] { transition-delay: 0.1s; }
.reveal[data-reveal="delay-2"] { transition-delay: 0.2s; }
.reveal[data-reveal="delay-3"] { transition-delay: 0.3s; }

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(32px);
    }
    .reveal.visible {
        opacity: 1;
        transform: translateY(0);
    }
}

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

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 40px rgba(15, 76, 117, 0.08);
}

.nav-link {
    position: relative;
}

#navbar:not(.scrolled) .nav-link {
    color: rgba(255, 255, 255, 0.8);
}

#navbar:not(.scrolled) .nav-link:hover {
    color: #0f4c75;
    background: rgba(134, 239, 172, 0.2);
}

/* ===== Service Cards ===== */
.service-card {
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #86efac, #4ade80);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* ===== Floating Cards Animation ===== */
@keyframes float-slow {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}

@keyframes float-medium {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}

@keyframes float-fast {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-16px); }
}

.floating-slow { animation: float-slow 6s ease-in-out infinite; }
.floating-medium { animation: float-medium 5s ease-in-out infinite; }
.floating-fast { animation: float-fast 4s ease-in-out infinite; }

/* ===== Mobile Menu ===== */
#mobileMenu {
    animation: slideDown 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mobile-link {
    display: block;
}

.mobile-link:hover {
    padding-left: 0.75rem;
}

/* ===== Smooth Scroll Offset ===== */
section[id] {
    scroll-margin-top: 80px;
}

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #fefce8;
}
::-webkit-scrollbar-thumb {
    background: #86efac;
    border-radius: 999px;
}
::-webkit-scrollbar-thumb:hover {
    background: #4ade80;
}

/* ===== Gallery hover overlay ===== */
.group .group-hover\:scale-105 {
    will-change: transform;
}

/* ===== Button Focus Styles ===== */
a:focus-visible, button:focus-visible {
    outline: 2px solid #86efac;
    outline-offset: 2px;
    border-radius: 9999px;
}