/* ============================================
   FAMILY DENTAL CENTER — Editorial Style
   Midnight Blue (#0A2540) + Mint (#7ED4B8)
   Playfair Display + Inter
   ============================================ */

/* ---- Reset & Base ---- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-midnight: #0A2540;
    --color-midnight-light: #133A5C;
    --color-mint: #7ED4B8;
    --color-mint-light: #A8E6CF;
    --color-mint-pale: #E8F5EF;
    --color-bg: #F5F7FA;
    --color-white: #FFFFFF;
    --color-text: #1A1A2E;
    --color-text-muted: #5A6275;
    --color-border: #E2E8F0;
    
    --font-serif: 'Playfair Display', Georgia, serif;
    --font-sans: 'Inter', system-ui, sans-serif;
    
    --fs-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --fs-sm: clamp(0.875rem, 0.8rem + 0.3vw, 1rem);
    --fs-base: clamp(1rem, 0.9rem + 0.4vw, 1.125rem);
    --fs-md: clamp(1.125rem, 1rem + 0.5vw, 1.375rem);
    --fs-lg: clamp(1.5rem, 1.2rem + 1vw, 2rem);
    --fs-xl: clamp(2rem, 1.5rem + 2vw, 3rem);
    --fs-2xl: clamp(2.5rem, 1.8rem + 3vw, 4rem);
    --fs-3xl: clamp(3rem, 2rem + 4vw, 5.5rem);
    
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    
    --shadow-sm: 0 1px 3px rgba(10, 37, 64, 0.06);
    --shadow-md: 0 4px 20px rgba(10, 37, 64, 0.08);
    --shadow-lg: 0 12px 40px rgba(10, 37, 64, 0.12);
    --shadow-xl: 0 20px 60px rgba(10, 37, 64, 0.15);
    
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-sans);
    font-size: var(--fs-base);
    line-height: 1.65;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 4vw, 3rem);
}

/* ---- Typography ---- */
h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.1;
    color: var(--color-midnight);
}

em {
    font-style: italic;
    color: var(--color-mint);
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-sans);
    font-size: var(--fs-sm);
    font-weight: 500;
    padding: 0.875rem 1.75rem;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-mint);
    color: var(--color-midnight);
}

.btn-primary:hover {
    background: var(--color-mint-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-ghost {
    background: transparent;
    color: var(--color-midnight);
    border: 1.5px solid var(--color-midnight);
}

.btn-ghost:hover {
    background: var(--color-midnight);
    color: var(--color-white);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ---- Header ---- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(245, 247, 250, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.site-header.scrolled {
    background: rgba(245, 247, 250, 0.95);
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    font-family: var(--font-serif);
    font-size: var(--fs-md);
    font-weight: 600;
    color: var(--color-midnight);
}

.logo-light {
    color: var(--color-white);
}

.logo-text {
    letter-spacing: -0.01em;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-link {
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--color-text-muted);
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--color-mint);
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--color-midnight);
}

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

.nav-phone {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    color: var(--color-midnight) !important;
    background: var(--color-mint-pale);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 500;
}

.nav-phone::after {
    display: none;
}

.nav-phone:hover {
    background: var(--color-mint);
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-midnight);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger::before,
.hamburger::after {
    content: '';
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-midnight);
    border-radius: 2px;
    transition: var(--transition);
}

.mobile-toggle[aria-expanded="true"] .hamburger {
    background: transparent;
}

.mobile-toggle[aria-expanded="true"] .hamburger::before {
    transform: rotate(45deg) translate(0, 5px);
}

.mobile-toggle[aria-expanded="true"] .hamburger::after {
    transform: rotate(-45deg) translate(0, -5px);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
}

.mobile-nav-link {
    font-family: var(--font-serif);
    font-size: var(--fs-xl);
    color: var(--color-midnight);
    font-weight: 500;
    transition: var(--transition);
}

.mobile-nav-link:hover {
    color: var(--color-mint);
}

.mobile-phone {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--fs-md);
    color: var(--color-mint);
    font-weight: 500;
    margin-top: var(--space-sm);
}

/* ---- Hero Section ---- */
.hero {
    padding-top: 72px;
    background: var(--color-bg);
    overflow: hidden;
}

.hero-layout {
    display: grid;
    grid-template-columns: 1fr 0.85fr;
    gap: var(--space-3xl);
    align-items: center;
    min-height: calc(100vh - 72px);
    padding: var(--space-3xl) 0;
}

.hero-eyebrow {
    font-size: var(--fs-xs);
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-mint);
    margin-bottom: var(--space-md);
}

.hero-headline {
    font-size: var(--fs-3xl);
    font-weight: 600;
    line-height: 1.05;
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

.hero-headline em {
    color: var(--color-mint);
}

.hero-description {
    font-size: var(--fs-md);
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
    max-width: 520px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.hero-trust {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-lg);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
}

/* Hero Image Column */
.hero-image-col {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.hero-image-main {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.hero-image-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-image-accent {
    position: absolute;
    bottom: -40px;
    left: -60px;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 4px solid var(--color-bg);
}

.hero-image-accent img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-stats {
    margin-top: var(--space-2xl);
    padding: var(--space-lg);
    background: var(--color-midnight);
    border-radius: var(--radius-md);
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat-number {
    font-family: var(--font-serif);
    font-size: var(--fs-2xl);
    font-weight: 600;
    color: var(--color-mint);
    line-height: 1;
}

.stat-label {
    font-size: var(--fs-sm);
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.4;
}

.hero-wave {
    margin-top: -1px;
    line-height: 0;
}

.hero-wave svg {
    width: 100%;
    height: 80px;
}

/* ---- Section Shared ---- */
.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto var(--space-3xl);
}

.section-eyebrow {
    font-size: var(--fs-xs);
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-mint);
    margin-bottom: var(--space-sm);
}

.section-title {
    font-size: var(--fs-2xl);
    font-weight: 600;
    line-height: 1.1;
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.section-title em {
    color: var(--color-mint);
}

.section-subtitle {
    font-size: var(--fs-base);
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ---- Services Section ---- */
.services {
    padding: var(--space-3xl) 0;
    background: var(--color-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.service-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: var(--space-xl);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-mint-pale);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-md);
    color: var(--color-midnight);
}

.service-title {
    font-size: var(--fs-lg);
    font-weight: 600;
    margin-bottom: var(--space-sm);
    letter-spacing: -0.01em;
}

.service-desc {
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ---- About Section ---- */
.about {
    padding: var(--space-3xl) 0;
    background: var(--color-white);
}

.about-layout {
    display: grid;
    grid-template-columns: 0.85fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-image-col {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.about-image-main {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-image-detail {
    position: absolute;
    bottom: -30px;
    right: -40px;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 4px solid var(--color-white);
}

.about-image-detail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-content-col {
    padding: var(--space-xl) 0;
}

.about-divider {
    width: 60px;
    height: 3px;
    background: var(--color-mint);
    border-radius: 2px;
    margin-bottom: var(--space-lg);
}

.about-text {
    font-size: var(--fs-base);
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: var(--space-md);
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--color-midnight);
}

/* ---- Patients Section ---- */
.patients {
    padding: var(--space-3xl) 0;
    background: var(--color-midnight);
    color: var(--color-white);
}

.patients .section-eyebrow {
    color: var(--color-mint);
}

.patients .section-title {
    color: var(--color-white);
}

.patients .section-subtitle p {
    color: rgba(255, 255, 255, 0.6);
}

.patients-layout {
    display: grid;
    grid-template-columns: 1fr 0.8fr;
    gap: var(--space-3xl);
    align-items: center;
}

.process-steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    margin-top: var(--space-2xl);
}

.process-step {
    display: flex;
    gap: var(--space-lg);
    align-items: flex-start;
}

.step-number {
    font-family: var(--font-serif);
    font-size: var(--fs-2xl);
    font-weight: 600;
    color: var(--color-mint);
    line-height: 1;
    min-width: 60px;
    padding-top: 0.25rem;
}

.step-title {
    font-family: var(--font-serif);
    font-size: var(--fs-lg);
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: 0.375rem;
}

.step-desc {
    font-size: var(--fs-sm);
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
}

.patients-image-col {
    position: relative;
    min-height: 500px;
}

.patients-image-stack {
    position: relative;
    height: 100%;
}

.patients-image-stack img:first-child {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 100%;
    height: 360px;
    object-fit: cover;
}

.patients-image-stack img:last-child {
    position: absolute;
    bottom: 0;
    right: -30px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border: 4px solid var(--color-midnight);
    width: 260px;
    height: 200px;
    object-fit: cover;
}

/* ---- Contact Section ---- */
.contact {
    padding: var(--space-3xl) 0;
    background: var(--color-bg);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.contact-info-col {
    padding-top: var(--space-lg);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    margin: var(--space-xl) 0;
}

.contact-detail {
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
}

.contact-detail-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-mint-pale);
    border-radius: var(--radius-sm);
    color: var(--color-midnight);
    flex-shrink: 0;
}

.contact-detail-label {
    display: block;
    font-size: var(--fs-xs);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 0.25rem;
}

.contact-detail-value {
    display: block;
    font-size: var(--fs-base);
    color: var(--color-midnight);
    line-height: 1.5;
}

.contact-detail a {
    color: var(--color-midnight);
    transition: var(--transition);
}

.contact-detail a:hover {
    color: var(--color-mint);
}

.contact-map {
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    margin-top: var(--space-lg);
}

/* Contact Form */
.contact-form-col {
    position: sticky;
    top: 100px;
}

.contact-form-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
}

.form-title {
    font-size: var(--fs-xl);
    font-weight: 600;
    margin-bottom: 0.375rem;
    letter-spacing: -0.01em;
}

.form-subtitle {
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--color-midnight);
    margin-bottom: 0.375rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-sans);
    font-size: var(--fs-sm);
    color: var(--color-text);
    background: var(--color-bg);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-mint);
    background: var(--color-white);
    box-shadow: 0 0 0 3px rgba(126, 212, 184, 0.2);
}

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

.form-success {
    text-align: center;
    padding: var(--space-2xl) var(--space-lg);
}

.form-success svg {
    margin: 0 auto var(--space-md);
}

.form-success h4 {
    font-size: var(--fs-lg);
    margin-bottom: 0.5rem;
}

.form-success p {
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ---- Footer ---- */
.footer {
    background: var(--color-midnight);
    color: var(--color-white);
    padding: var(--space-3xl) 0 var(--space-lg);
}

.footer-top {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 1fr;
    gap: var(--space-2xl);
    padding-bottom: var(--space-2xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    max-width: 280px;
}

.footer-tagline {
    font-size: var(--fs-sm);
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.7;
    margin-top: var(--space-sm);
}

.footer-nav ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-nav a {
    font-size: var(--fs-sm);
    color: rgba(255, 255, 255, 0.6);
    transition: var(--transition);
}

.footer-nav a:hover {
    color: var(--color-mint);
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.footer-contact p {
    font-size: var(--fs-sm);
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.6;
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-contact a:hover {
    color: var(--color-mint);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
    padding-top: var(--space-lg);
    font-size: var(--fs-xs);
    color: rgba(255, 255, 255, 0.35);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.5);
    transition: var(--transition);
}

.footer-bottom a:hover {
    color: var(--color-mint);
}

/* ---- Scroll Animations ---- */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }
.fade-in-delay-5 { transition-delay: 0.5s; }

/* ---- Responsive ---- */
@media (max-width: 1024px) {
    .hero-layout {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
        min-height: auto;
        padding: var(--space-2xl) 0;
    }
    
    .hero-image-col {
        max-width: 500px;
    }
    
    .hero-image-accent {
        left: -20px;
        bottom: -20px;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-layout {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .about-image-col {
        max-width: 480px;
    }
    
    .patients-layout {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .patients-image-col {
        min-height: 360px;
    }
    
    .contact-layout {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .contact-form-col {
        position: static;
    }
    
    .footer-top {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .hero-headline {
        font-size: var(--fs-2xl);
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-actions .btn {
        justify-content: center;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image-detail {
        right: -10px;
        bottom: -15px;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .patients-image-stack img:last-child {
        right: -10px;
        width: 200px;
        height: 160px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        padding: var(--space-md);
    }
    
    .contact-form-card {
        padding: var(--space-lg);
    }
}