/* Base & Utilities */
html {
    scroll-behavior: smooth;
}

body {
    overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f5f5f4;
}
::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

/* Navigation */
.nav {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.nav.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
}

.nav.scrolled .nav-logo-text {
    color: #0f172a;
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #0d9488;
    border-radius: 1px;
    transition: width 0.3s ease;
}

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

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

/* Buttons */
.btn-primary {
    background: #0d9488;
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: 9999px;
    font-weight: 700;
    font-size: 0.9375rem;
    transition: all 0.3s ease;
    border: 2px solid #0d9488;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}

.btn-primary:hover {
    background: #0f766e;
    border-color: #0f766e;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(13, 148, 136, 0.3);
    color: #fff;
}

.btn-secondary {
    background: transparent;
    color: #0d9488;
    padding: 0.75rem 1.5rem;
    border-radius: 9999px;
    font-weight: 700;
    font-size: 0.9375rem;
    transition: all 0.3s ease;
    border: 2px solid #0d9488;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}

.btn-secondary:hover {
    background: #0d9488;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(13, 148, 136, 0.2);
}

/* Hero */
.hero {
    position: relative;
}

.floating-dot {
    animation: float 3s ease-in-out infinite;
}

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

.scroll-indicator {
    animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
    0%, 100% { opacity: 1; transform: scaleY(1); }
    50% { opacity: 0.5; transform: scaleY(0.6); }
}

/* About */
.about-images {
    position: relative;
    z-index: 1;
}

/* Menu */
.menu-tab {
    background: transparent;
    color: #64748b;
    border: none;
    cursor: pointer;
}

.menu-tab.active {
    background: #0d9488;
    color: #fff;
    box-shadow: 0 4px 15px rgba(13, 148, 136, 0.3);
}

.menu-tab:not(.active):hover {
    background: #f0fdfa;
    color: #0d9488;
}

.menu-panel {
    animation: fadeIn 0.4s ease;
}

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

.menu-card {
    transition: all 0.3s ease;
}

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

/* Gallery */
.gallery-item {
    cursor: pointer;
}

.gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(13, 148, 136, 0);
    transition: background 0.3s ease;
    border-radius: inherit;
}

.gallery-item:hover::after {
    background: rgba(13, 148, 136, 0.1);
}

/* Contact Form */
.input-field {
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    padding: 0.75rem 1rem;
    font-family: 'Nunito', system-ui, sans-serif;
    font-size: 0.9375rem;
    color: #1e293b;
    transition: all 0.3s ease;
    outline: none;
    width: 100%;
    box-sizing: border-box;
}

.input-field:focus {
    border-color: #0d9488;
    background: #fff;
    box-shadow: 0 0 0 4px rgba(13, 148, 136, 0.1);
}

.input-field::placeholder {
    color: #94a3b8;
}

/* Mobile Menu */
.mobile-menu {
    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;
}

/* Scroll Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.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; }
.reveal-delay-4 { transition-delay: 0.4s; }