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

body {
    overflow-x: hidden;
}

::selection {
    background-color: #0d9488;
    color: white;
}

/* ========== Scrollbar ========== */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f1f5f9;
}
::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

/* ========== Navbar ========== */
.nav-scrolled {
    background: rgba(255, 255, 255, 0.97) !important;
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06), 0 4px 20px rgba(0, 0, 0, 0.04);
}

.nav-scrolled .nav-link {
    color: #1e293b !important;
}

.nav-scrolled .nav-link:hover {
    color: #0d9488 !important;
}

/* ========== Scroll Reveal ========== */
.reveal {
    opacity: 1;
    transform: none;
    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.from-bottom {
    transform: translateY(30px);
    opacity: 0;
}

.reveal.from-left {
    transform: translateX(-30px);
    opacity: 0;
}

.reveal.from-right {
    transform: translateX(30px);
    opacity: 0;
}

.reveal.scale-in {
    transform: scale(0.95);
    opacity: 0;
}

.reveal.visible {
    opacity: 1;
    transform: none;
}

/* Staggered delays */
.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; }

/* ========== Service Card Hover ========== */
.group:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

.service-icon {
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ========== Button Ripple ========== */
.btn-primary {
    position: relative;
    overflow: hidden;
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:active::after {
    width: 200px;
    height: 200px;
}

/* ========== Form Input Focus ========== */
input:focus,
select:focus,
textarea:focus {
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.1);
}

/* ========== Image Hover ========== */
.img-zoom {
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.img-zoom:hover {
    transform: scale(1.03);
}

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

.float-animation {
    animation: float 4s ease-in-out infinite;
}

/* ========== Pulse Dot ========== */
@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.pulse-dot {
    animation: pulse-dot 2s ease-in-out infinite;
}

/* ========== Reduced Motion ========== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }

    .float-animation {
        animation: none;
    }
}

/* ========== Mobile Menu Transition ========== */
#mobile-menu {
    transition: max-height 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), opacity 0.3s ease;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
}

#mobile-menu.open {
    max-height: 400px;
    opacity: 1;
}

/* ========== Custom Select Arrow ========== */
select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}