/* ============================================
   Eric Martin, DDS — Custom Styles
   ============================================ */

/* Reset & Base */
*, *::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: #a1634c;
    color: #faf8f5;
}

/* ============================================
   Scroll Animations (progressive enhancement)
   ============================================ */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                    transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }
    
    .reveal.visible {
        opacity: 1;
        transform: translateY(0);
    }
    
    /* Stagger children */
    .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; }
}

/* ============================================
   Scroll Line Animation
   ============================================ */
@keyframes scrollLine {
    0% {
        transform: scaleY(0);
        transform-origin: top;
    }
    50% {
        transform: scaleY(1);
        transform-origin: top;
    }
    51% {
        transform-origin: bottom;
    }
    100% {
        transform: scaleY(0);
        transform-origin: bottom;
    }
}

.animate-scroll-line {
    animation: scrollLine 2s ease-in-out infinite;
}

/* ============================================
   Navbar Scroll State
   ============================================ */
.nav-scrolled {
    background-color: rgba(250, 248, 245, 0.95) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(161, 99, 76, 0.1);
}

.nav-scrolled .menu-line {
    background-color: #6e4236;
}

/* ============================================
   Mobile Menu
   ============================================ */
.mobile-link {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.mobile-menu-open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

.mobile-menu-open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
.mobile-menu-open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
.mobile-menu-open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
.mobile-menu-open .mobile-link:nth-child(4) { transition-delay: 0.25s; }

/* Hamburger animation */
.menu-open .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(3px, 3px);
}

.menu-open .menu-line:nth-child(2) {
    transform: rotate(-45deg) translate(3px, -3px);
}

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

.service-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 1px;
    background-color: #a1634c;
    transition: width 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                left 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.service-card:hover::after {
    width: 80%;
    left: 10%;
}

/* ============================================
   Form Focus States
   ============================================ */
input:focus,
textarea:focus {
    outline: none;
    border-color: #a1634c !important;
    background-color: #faf8f5 !important;
}

/* ============================================
   Smooth image loading
   ============================================ */
img {
    opacity: 1;
    transition: opacity 0.3s ease;
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    nav, #contact, footer, .animate-scroll-line {
        display: none;
    }
    
    body {
        color: #000;
        background: #fff;
    }
}