/* ============================================
   Kim S Rothstein, MD — Dermatology Website
   Custom Styles
   ============================================ */

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

body {
    overflow-x: hidden;
}

::selection {
    background-color: rgba(4, 120, 87, 0.2);
    color: #064e3b;
}

/* --- Navbar --- */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1.5px;
    background-color: currentColor;
    transition: width 0.3s ease;
}

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

/* Navbar scroll state */
.navbar-scrolled {
    background-color: rgba(253, 252, 248, 0.95) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(6, 78, 59, 0.08);
}

.navbar-scrolled .nav-link {
    color: #064e3b;
}

.navbar-scrolled .font-serif.text-emerald-900 {
    color: #064e3b;
}

.navbar-scrolled .text-emerald-700 {
    color: #047857;
}

/* --- Hero --- */
#hero {
    position: relative;
}

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

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #34d399, #10b981, #059669);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.service-card:hover::before {
    opacity: 1;
}

/* --- Mobile Menu --- */
.mobile-link {
    position: relative;
}

/* --- Form Styles --- */
input:focus,
select:focus,
textarea:focus {
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23047857' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

/* --- Scroll Reveal Animations --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.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; }

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
    
    .service-card::before {
        display: none;
    }
    
    .service-card:hover {
        transform: none;
    }
    
    a:hover {
        transform: none;
    }
}

/* --- Responsive --- */
@media (max-width: 768px) {
    #hero {
        padding-top: 2rem;
    }
    
    .font-serif.text-5xl {
        font-size: 2.75rem;
    }
    
    .font-serif.text-4xl {
        font-size: 2.25rem;
    }
}

@media (max-width: 360px) {
    .font-serif.text-5xl {
        font-size: 2.25rem;
    }
}

/* --- Focus Visible --- */
*:focus-visible {
    outline: 2px solid #10b981;
    outline-offset: 2px;
}

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