/* ============================================
   Klein Family Dentistry — Custom Styles
   Charcoal + Coral | Playfair Display + Lato
   ============================================ */

/* ---- CSS Custom Properties ---- */
:root {
    --charcoal-900: #1a1a1a;
    --charcoal-800: #2d2d2d;
    --charcoal-700: #3d3d3d;
    --charcoal-600: #4a4a4a;
    --charcoal-500: #5a5a5a;
    
    --coral-50: #fef3f0;
    --coral-100: #fde4dd;
    --coral-200: #f9c4b6;
    --coral-300: #f3a08a;
    --coral-400: #E07A5F;
    --coral-500: #d4694f;
    --coral-600: #c1666b;
    --coral-700: #a05256;
    
    --warm-50: #faf9f7;
    --warm-100: #f5f2ee;
    --warm-200: #ebe5dc;
    --warm-300: #d4cdc0;
    
    --white: #ffffff;
    --black: #0a0a0a;
    
    --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-sans: 'Lato', 'Helvetica Neue', Arial, sans-serif;
    
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    
    --shadow-sm: 0 1px 3px rgba(26,26,26,0.08), 0 1px 2px rgba(26,26,26,0.06);
    --shadow-md: 0 4px 16px rgba(26,26,26,0.1), 0 2px 4px rgba(26,26,26,0.06);
    --shadow-lg: 0 12px 40px rgba(26,26,26,0.12), 0 4px 12px rgba(26,26,26,0.08);
    --shadow-xl: 0 24px 60px rgba(26,26,26,0.15), 0 8px 20px rgba(26,26,26,0.1);
    
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    color: var(--charcoal-800);
    background-color: var(--warm-50);
    line-height: 1.7;
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

ul {
    list-style: none;
}

/* ---- Utility ---- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---- Section Labels & Titles ---- */
.section-label {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--coral-400);
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 600;
    color: var(--charcoal-900);
    line-height: 1.2;
    margin-bottom: 16px;
}

.section-description {
    font-size: 1.05rem;
    color: var(--charcoal-600);
    max-width: 560px;
    line-height: 1.8;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header .section-description {
    margin: 0 auto;
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 600;
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn-primary {
    background: var(--coral-400);
    color: var(--white);
    border-color: var(--coral-400);
}

.btn-primary:hover {
    background: var(--coral-500);
    border-color: var(--coral-500);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.5);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--white);
    transform: translateY(-2px);
}

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

/* ---- Navbar ---- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-icon {
    color: var(--coral-400);
    display: flex;
    align-items: center;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-name {
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 600;
    color: var(--charcoal-900);
}

.logo-tagline {
    font-family: var(--font-sans);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--charcoal-500);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a:not(.nav-cta) {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--charcoal-600);
    position: relative;
}

.nav-links a:not(.nav-cta):hover {
    color: var(--coral-400);
}

.nav-links a:not(.nav-cta)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--coral-400);
    transition: width var(--transition-base);
}

.nav-links a:not(.nav-cta):hover::after {
    width: 100%;
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--charcoal-900);
    color: var(--white) !important;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    transition: all var(--transition-base);
}

.nav-cta:hover {
    background: var(--coral-400);
    transform: translateY(-1px);
}

.nav-cta::after {
    display: none !important;
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--charcoal-800);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ---- Hero Section ---- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 120px 24px 80px;
    overflow: hidden;
    /* Charcoal gradient background with coral warmth */
    background: linear-gradient(
        135deg,
        #1a1a1a 0%,
        #2d2d2d 25%,
        #3a2520 50%,
        #4a2520 75%,
        #2d2d2d 100%
    );
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 60% at 20% 80%, rgba(224,122,95,0.25) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 20%, rgba(193,102,107,0.2) 0%, transparent 60%),
        radial-gradient(ellipse 90% 40% at 50% 50%, rgba(26,26,26,0.3) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    color: var(--coral-200);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    padding: 8px 20px;
    border-radius: 50px;
    margin-bottom: 32px;
    backdrop-filter: blur(10px);
}

.hero-headline {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-accent {
    color: var(--coral-400);
    font-style: italic;
}

.hero-subheadline {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: rgba(255,255,255,0.7);
    line-height: 1.8;
    max-width: 600px;
    margin: 0 auto 40px;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 56px;
}

.hero-trust {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.6);
    font-size: 0.85rem;
    font-weight: 500;
}

.trust-item svg {
    color: var(--coral-300);
}

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.4);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    z-index: 2;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.4), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.4; transform: scaleY(1); }
    50% { opacity: 1; transform: scaleY(1.2); }
}

/* ---- Services Section ---- */
.services {
    padding: 100px 0;
    background: var(--warm-50);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 36px 28px;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--coral-400), var(--coral-600));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

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

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--coral-50);
    border-radius: var(--radius-sm);
    color: var(--coral-400);
    margin-bottom: 20px;
    transition: all var(--transition-base);
}

.service-card:hover .service-icon {
    background: var(--coral-400);
    color: var(--white);
}

.service-card h3 {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--charcoal-900);
    margin-bottom: 10px;
}

.service-card p {
    font-size: 0.9rem;
    color: var(--charcoal-600);
    line-height: 1.7;
}

/* ---- About Section ---- */
.about {
    padding: 100px 0;
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-image-wrap {
    position: relative;
}

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

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

.about-accent {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--coral-400), var(--coral-600));
    border-radius: var(--radius-md);
    z-index: -1;
}

.about-content .section-title {
    text-align: left;
}

.about-text {
    font-size: 1rem;
    color: var(--charcoal-600);
    line-height: 1.85;
    margin-bottom: 16px;
}

.about-values {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 32px;
}

.value-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--charcoal-700);
}

.value-item svg {
    color: var(--coral-400);
    flex-shrink: 0;
}

/* ---- Experience Section ---- */
.experience {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--charcoal-900) 0%, #2a1f1d 100%);
    position: relative;
    overflow: hidden;
}

.experience::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 50% 50% at 0% 100%, rgba(224,122,95,0.15) 0%, transparent 60%),
        radial-gradient(ellipse 40% 40% at 100% 0%, rgba(193,102,107,0.1) 0%, transparent 60%);
    pointer-events: none;
}

.experience .section-label {
    color: var(--coral-300);
}

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

.experience .section-description {
    color: rgba(255,255,255,0.6);
}

.experience-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}

.step-card {
    text-align: center;
    padding: 32px 20px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
}

.step-card:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(224,122,95,0.3);
    transform: translateY(-4px);
}

.step-number {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--coral-400);
    line-height: 1;
    margin-bottom: 16px;
    opacity: 0.8;
}

.step-card h3 {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 10px;
}

.step-card p {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.55);
    line-height: 1.7;
}

/* ---- Contact Section ---- */
.contact {
    padding: 100px 0;
    background: var(--warm-100);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.contact-info .section-title {
    text-align: left;
}

.contact-description {
    font-size: 1rem;
    color: var(--charcoal-600);
    line-height: 1.8;
    margin-bottom: 36px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 32px;
}

.contact-detail {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border-radius: var(--radius-sm);
    color: var(--coral-400);
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.contact-detail strong {
    display: block;
    font-family: var(--font-serif);
    font-size: 1rem;
    color: var(--charcoal-900);
    margin-bottom: 4px;
}

.contact-detail p,
.contact-detail a {
    font-size: 0.9rem;
    color: var(--charcoal-600);
    line-height: 1.6;
}

.contact-detail a:hover {
    color: var(--coral-400);
}

.contact-map {
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

/* Contact Form */
.contact-form-wrap {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(0,0,0,0.06);
}

.contact-form-wrap h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--charcoal-900);
    margin-bottom: 8px;
}

.form-note {
    font-size: 0.85rem;
    color: var(--charcoal-500);
    margin-bottom: 28px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--charcoal-600);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--charcoal-800);
    background: var(--warm-50);
    border: 1.5px solid var(--warm-200);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--coral-400);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(224,122,95,0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--charcoal-300);
}

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

.form-success {
    display: none;
    text-align: center;
    padding: 40px 20px;
}

.form-success svg {
    color: var(--coral-400);
    margin-bottom: 16px;
}

.form-success h4 {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    color: var(--charcoal-900);
    margin-bottom: 8px;
}

.form-success p {
    font-size: 0.9rem;
    color: var(--charcoal-600);
    line-height: 1.7;
}

/* ---- Footer ---- */
.footer {
    background: var(--charcoal-900);
    padding: 64px 0 0;
    color: rgba(255,255,255,0.6);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-brand .logo-name {
    color: var(--white);
}

.footer-desc {
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 280px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 16px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.5);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--coral-400);
}

.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.85rem;
    line-height: 1.6;
}

.footer-contact svg {
    color: var(--coral-400);
    flex-shrink: 0;
    margin-top: 3px;
}

.footer-contact a:hover {
    color: var(--coral-400);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    padding: 24px 0;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.35);
}

.footer-bottom a {
    color: rgba(255,255,255,0.35);
    transition: color var(--transition-fast);
}

.footer-bottom a:hover {
    color: var(--coral-400);
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .experience-steps {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid {
        gap: 48px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        justify-content: center;
        gap: 24px;
        padding: 40px;
        box-shadow: var(--shadow-xl);
        transition: right var(--transition-base);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-cta {
        justify-content: center;
    }
    
    .mobile-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.5);
        z-index: 999;
    }
    
    .mobile-overlay.active {
        display: block;
    }
    
    .hero {
        padding: 100px 20px 60px;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-trust {
        gap: 20px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image-wrap {
        order: -1;
    }
    
    .about-accent {
        width: 80px;
        height: 80px;
        bottom: -12px;
        right: -12px;
    }
    
    .about-values {
        grid-template-columns: 1fr;
    }
    
    .experience-steps {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-form-wrap {
        padding: 28px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-headline {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .services,
    .about,
    .experience,
    .contact {
        padding: 64px 0;
    }
    
    .section-header {
        margin-bottom: 40px;
    }
}

/* ---- Reduced Motion ---- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}