/* ============================================
   River Park Dental — Custom Styles
   ============================================ */

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

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Selection */
::selection {
    background: #b07260;
    color: #fff;
}

/* ============================================
   Navigation
   ============================================ */
#navbar {
    background: rgba(254, 253, 251, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

#navbar.scrolled {
    border-bottom-color: #f5e4cc;
    box-shadow: 0 1px 0 rgba(151, 85, 71, 0.08);
}

/* ============================================
   Hero Animations
   ============================================ */
.hero-content {
    animation: heroFadeIn 1s ease forwards;
}

@keyframes heroFadeIn {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Services
   ============================================ */
.service-card {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.service-card.hidden-init {
    opacity: 0;
    transform: translateY(20px);
}

/* ============================================
   Testimonials
   ============================================ */
.testimonial-card {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.testimonial-card.hidden-init {
    opacity: 0;
    transform: translateY(20px);
}

/* ============================================
   Mobile Menu
   ============================================ */
#mobileMenu {
    box-shadow: none;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s ease;
}

#mobileMenu.open {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* ============================================
   Scroll Reveal (progressive enhancement)
   ============================================ */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Focus States
   ============================================ */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #975547;
    outline-offset: 2px;
    border-radius: 2px;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 767px) {
    .font-serif {
        font-size: clamp(1.75rem, 5vw, 2.5rem);
    }
}