/* ===== Base & Utilities ===== */
*, *::before, *::after {
    box-sizing: border-box;
}

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

body {
    overflow-x: hidden;
}

::selection {
    background: #d4a017;
    color: #102a43;
}

/* ===== Scroll Reveal (progressive enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }
    
    .reveal.revealed {
        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; }
}

/* ===== Floating Card Animations ===== */
@media (prefers-reduced-motion: no-preference) {
    .floating-card-1 {
        animation: float-slow 6s ease-in-out infinite;
    }
    
    .floating-card-2 {
        animation: float-slow 5s ease-in-out infinite 1s;
    }
}

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

/* ===== Scroll Indicator ===== */
@media (prefers-reduced-motion: no-preference) {
    .scroll-dot {
        animation: scroll-bounce 2s ease-in-out infinite;
    }
}

@keyframes scroll-bounce {
    0%, 100% { transform: translateY(0); opacity: 0.6; }
    50% { transform: translateY(8px); opacity: 1; }
}

/* ===== Navbar Scroll State ===== */
.navbar-scrolled {
    background: rgba(250, 248, 243, 0.95) !important;
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(16, 42, 67, 0.08), 0 4px 20px rgba(16, 42, 67, 0.06);
}

.navbar-scrolled .nav-link {
    color: #1e3a5f !important;
}

.navbar-scrolled .nav-link:hover {
    color: #d4a017 !important;
}

.navbar-scrolled .brand-text {
    color: #102a43 !important;
}

/* ===== Button Hover Effects ===== */
.btn-primary {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn-primary:hover::before {
    opacity: 1;
}

/* ===== Card Hover ===== */
.specialty-card {
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease;
}

.specialty-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 60px -20px rgba(16, 42, 67, 0.15);
}

/* ===== Image Hover ===== */
img {
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ===== Focus Styles ===== */
a:focus-visible, button:focus-visible {
    outline: 2px solid #d4a017;
    outline-offset: 2px;
    border-radius: 4px;
}

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

::-webkit-scrollbar-track {
    background: #faf8f3;
}

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

::-webkit-scrollbar-thumb:hover {
    background: #9fb3c8;
}

/* ===== Loading State ===== */
.page-loaded #hero {
    opacity: 1;
}

#hero {
    opacity: 1;
}

/* ===== Mobile Menu Transition ===== */
#mobile-menu {
    transition: opacity 0.3s ease, max-height 0.3s ease;
}

#mobile-menu.hidden {
    opacity: 0;
    max-height: 0;
    overflow: hidden;
}

#mobile-menu:not(.hidden) {
    opacity: 1;
    max-height: 400px;
}

/* ===== Responsive Adjustments ===== */
@media (max-width: 768px) {
    html {
        scroll-padding-top: 72px;
    }
    
    .font-display {
        font-size: clamp(2rem, 8vw, 3rem);
    }
}