/* ========================================
   North Dental Clinics — Custom Styles
   ======================================== */

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

body {
    overflow-x: hidden;
}

/* Selection */
::selection {
    background-color: #e05a2d;
    color: #fff;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #fdf9f3;
}
::-webkit-scrollbar-thumb {
    background: #e05a2d;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #c4451f;
}

/* Hero Animations — above the fold, always visible */
.hero-anim {
    opacity: 1;
    transform: translateY(0);
    animation: heroReveal 0.8s ease forwards;
}

.hero-anim:nth-child(1) { animation-delay: 0.1s; }
.hero-anim:nth-child(2) { animation-delay: 0.25s; }
.hero-anim:nth-child(3) { animation-delay: 0.4s; }
.hero-anim:nth-child(4) { animation-delay: 0.55s; }
.hero-anim:nth-child(5) { animation-delay: 0.7s; }

@keyframes heroReveal {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll Reveal — only below the fold, progressive enhancement */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .hero-anim {
        opacity: 1;
        transform: none;
        animation: none;
    }
    html {
        scroll-behavior: auto;
    }
}

/* Navbar */
#navbar.scrolled {
    background: rgba(254, 253, 251, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
}

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

/* Service Cards */
.group:hover .group-hover\:scale-110 {
    transform: scale(1.1);
}

/* Form Focus States */
input:focus,
textarea:focus {
    border-color: #f4aa8a !important;
    box-shadow: 0 0 0 3px rgba(244, 170, 138, 0.2);
    outline: none;
}

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

img[loading="lazy"] {
    opacity: 0;
}

img[loading="lazy"].loaded {
    opacity: 1;
}

/* Button hover effects */
a, button {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Print styles */
@media print {
    nav, #contact-form, #form-success {
        display: none;
    }
    body {
        color: #000;
        background: #fff;
    }
}