/* ============================================
   Copperfield Family Dentist — Custom Styles
   ============================================ */

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

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

body {
    overflow-x: hidden;
}

/* Selection Color */
::selection {
    background-color: rgba(251, 191, 36, 0.3);
    color: #500724;
}

/* ============================================
   Hero Animations
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation-name: fadeInUp;
    animation-duration: 0.8s;
    animation-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
    animation-iteration-count: 1;
}

/* ============================================
   Scroll Reveal (Progressive Enhancement)
   ============================================ */
@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
        opacity: 1;
        transform: translateY(0);
        transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
                    transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
    }
}

/* Default state: visible (no JS fallback) */
.scroll-reveal {
    opacity: 1;
    transform: translateY(0);
}

/* JS-enhanced hidden state for scroll reveal */
.scroll-reveal.revealed {
    opacity: 0;
    transform: translateY(30px);
}

@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal.revealed {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
                    transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
    }
    
    .scroll-reveal.is-visible {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Navbar
   ============================================ */
#navbar {
    background: transparent;
}

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(157, 23, 77, 0.08);
}

/* ============================================
   Mobile Menu
   ============================================ */
.mobile-link {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

#mobileMenu.open {
    opacity: 1;
    pointer-events: all;
}

#mobileMenu.closed {
    opacity: 0;
    pointer-events: none;
}

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

textarea {
    resize: vertical;
    min-height: 100px;
}

/* ============================================
   Smooth Scroll Offset for Fixed Nav
   ============================================ */
section[id] {
    scroll-margin-top: 80px;
}

/* ============================================
   Image Optimization
   ============================================ */
img {
    max-width: 100%;
    height: auto;
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    #navbar,
    #mobileMenu,
    .scroll-reveal {
        display: none;
    }
    
    body {
        color: #000;
        background: #fff;
    }
}

/* ============================================
   Focus Visible for Accessibility
   ============================================ */
:focus-visible {
    outline: 2px solid #fbbf24;
    outline-offset: 2px;
}

/* ============================================
   Subtle Hover Transitions
   ============================================ */
a, button {
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}