/* ============================================
   Rula Al-Aouar, MD — Custom Styles
   ============================================ */

/* Color Palette */
:root {
    --midnight-900: #0A2342;
    --midnight-800: #0F2D54;
    --midnight-700: #153A6A;
    --midnight-600: #1B4780;
    --midnight-500: #215496;
    --midnight-400: #6B8FBF;
    --midnight-300: #9BB5D6;
    --midnight-200: #C5D8E8;
    --midnight-100: #E2ECF3;
    --midnight-50: #F0F6FB;
    --mint-500: #2EC4B6;
    --mint-400: #40E0D0;
    --mint-300: #72EBE0;
    --mint-200: #A8F5EE;
    --mint-100: #D0FAF6;
    --mint-600: #1A9E92;
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--midnight-900);
}

.font-serif {
    font-family: 'Playfair Display', Georgia, serif;
}

/* Navbar */
#navbar {
    background: transparent;
    transition: background 0.3s ease, box-shadow 0.3s ease;
}

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.97);
    box-shadow: 0 1px 20px rgba(10, 35, 66, 0.08);
    backdrop-filter: blur(10px);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--mint-400);
    transition: width 0.2s ease;
}

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

/* Mobile menu */
#mobile-menu {
    animation: slideDown 0.25s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mobile-link {
    display: block;
    padding: 8px 0;
    border-bottom: 1px solid var(--midnight-100);
}

.mobile-link:last-child {
    border-bottom: none;
}

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

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--mint-400);
    transition: height 0.3s ease;
}

.service-card:hover::before {
    height: 100%;
}

/* Scroll reveal (progressive enhancement) */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }

    .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; }
    .reveal-delay-4 { transition-delay: 0.4s; }
    .reveal-delay-5 { transition-delay: 0.5s; }
    .reveal-delay-6 { transition-delay: 0.6s; }
}

/* Form */
input:focus,
select:focus,
textarea:focus {
    outline: none;
}

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

::-webkit-scrollbar-track {
    background: var(--midnight-50);
}

::-webkit-scrollbar-thumb {
    background: var(--midnight-300);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--midnight-500);
}

/* Selection */
::selection {
    background: var(--mint-400);
    color: var(--midnight-900);
}