/* ============================================
   FLAIR DENTAL CARE — Custom Styles
   Charcoal + Coral Palette
   ============================================ */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --charcoal-900: #1a1a2e;
    --charcoal-800: #2d2d44;
    --charcoal-700: #3d3d5c;
    --charcoal-600: #4a4a6a;
    --charcoal-500: #6b6b8a;
    --neutral-100: #f5f5f7;
    --neutral-200: #e8e8ed;
    --neutral-300: #d1d1db;
    --coral-500: #E07A5F;
    --coral-600: #c96a52;
    --coral-700: #b05a44;
    --white: #ffffff;
    --text-dark: #1a1a2e;
    --text-light: #f5f5f7;
    --text-muted: #6b6b8a;
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --shadow-sm: 0 1px 3px rgba(26, 26, 46, 0.08);
    --shadow-md: 0 4px 16px rgba(26, 26, 46, 0.1);
    --shadow-lg: 0 8px 32px rgba(26, 26, 46, 0.12);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    background: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

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

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    white-space: nowrap;
}

.btn-coral {
    background: var(--coral-500);
    color: var(--white);
    border-color: var(--coral-500);
}

.btn-coral:hover {
    background: var(--coral-600);
    border-color: var(--coral-600);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(224, 122, 95, 0.35);
}

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

.btn-outline-light:hover {
    background: var(--white);
    color: var(--charcoal-900);
    border-color: var(--white);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* ============================================
   SECTION HEADERS
   ============================================ */
.section-label {
    display: inline-block;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--coral-500);
    margin-bottom: 12px;
}

.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 64px;
}

.section-header h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--charcoal-900);
    line-height: 1.2;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.0625rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: var(--transition);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 1.1875rem;
    font-weight: 700;
    color: var(--white);
}

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

.nav-links a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.78);
    transition: color var(--transition);
}

.nav-links a:hover {
    color: var(--white);
}

/* Mobile menu button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   HERO
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('https://images.pexels.com/photos/5994624/pexels-photo-5994624.jpeg?auto=compress&cs=tinysrgb&fit=crop&w=1920&h=1080') center center / cover no-repeat;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(26, 26, 46, 0.88) 0%,
        rgba(45, 45, 68, 0.82) 50%,
        rgba(26, 26, 46, 0.78) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 780px;
    text-align: center;
    padding: 120px 24px 80px;
}

.hero-content h1 {
    font-family: var(--font-heading);
    font-size: clamp(2.25rem, 5.5vw, 3.75rem);
    font-weight: 700;
    color: var(--white);
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -0.01em;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.1875rem);
    color: rgba(255, 255, 255, 0.82);
    line-height: 1.75;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

.hero-trust {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    justify-content: center;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
}

.trust-item svg {
    color: var(--coral-500);
    flex-shrink: 0;
}

/* ============================================
   SERVICES
   ============================================ */
.services {
    padding: 100px 0;
    background: var(--neutral-100);
}

.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;
    transition: var(--transition);
    border: 1px solid var(--neutral-200);
}

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

.service-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-sm);
    background: rgba(224, 122, 95, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.service-card h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--charcoal-900);
    margin-bottom: 12px;
}

.service-card p {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.7;
}

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

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

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

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

.about-content .section-label {
    margin-bottom: 12px;
}

.about-content h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 3.5vw, 2.25rem);
    font-weight: 700;
    color: var(--charcoal-900);
    line-height: 1.2;
    margin-bottom: 24px;
}

.about-lead {
    font-size: 1.0625rem;
    color: var(--charcoal-700);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-content > p {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.75;
    margin-bottom: 32px;
}

.about-values {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.value-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--charcoal-800);
    line-height: 1.5;
}

.value-item svg {
    flex-shrink: 0;
    margin-top: 2px;
}

/* ============================================
   WHY CHOOSE
   ============================================ */
.why-choose {
    padding: 100px 0;
    background: var(--charcoal-900);
}

.why-choose .section-header h2 {
    color: var(--white);
}

.why-choose .section-subtitle {
    color: rgba(255, 255, 255, 0.6);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.feature-block {
    padding: 40px 36px;
    background: var(--charcoal-800);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: var(--transition);
}

.feature-block:hover {
    border-color: rgba(224, 122, 95, 0.3);
    transform: translateY(-2px);
}

.feature-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    color: rgba(224, 122, 95, 0.25);
    line-height: 1;
    margin-bottom: 16px;
}

.feature-block h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
}

.feature-block p {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.75;
}

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonials {
    padding: 100px 0;
    background: var(--neutral-100);
}

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

.testimonial-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 36px 28px;
    border: 1px solid var(--neutral-200);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.testimonial-card:hover {
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.testimonial-card > p {
    font-size: 0.9375rem;
    color: var(--charcoal-700);
    line-height: 1.8;
    flex: 1;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-card footer {
    border-top: 1px solid var(--neutral-200);
    padding-top: 20px;
}

.testimonial-card cite {
    font-style: normal;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--charcoal-900);
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
    padding: 100px 0;
    background: var(--coral-500);
    text-align: center;
}

.cta-content h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 1.0625rem;
    color: rgba(255, 255, 255, 0.88);
    line-height: 1.7;
    max-width: 560px;
    margin: 0 auto 40px;
}

.cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
}

.cta-actions .btn-outline-light {
    border-color: rgba(255, 255, 255, 0.6);
}

.cta-actions .btn-outline-light:hover {
    background: var(--white);
    color: var(--coral-500);
    border-color: var(--white);
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
    padding: 100px 0;
    background: var(--white);
}

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

.contact-info .section-label {
    margin-bottom: 12px;
}

.contact-info h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 3.5vw, 2.25rem);
    font-weight: 700;
    color: var(--charcoal-900);
    line-height: 1.2;
    margin-bottom: 16px;
}

.contact-intro {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.75;
    margin-bottom: 36px;
}

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

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

.contact-item svg {
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-item strong {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--charcoal-900);
    margin-bottom: 4px;
}

.contact-item p {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.contact-item a {
    color: var(--coral-500);
    transition: color var(--transition);
}

.contact-item a:hover {
    color: var(--coral-700);
}

/* Contact form */
.contact-form-wrapper {
    background: var(--neutral-100);
    border-radius: var(--radius-lg);
    padding: 40px;
    border: 1px solid var(--neutral-200);
}

.contact-form h3 {
    font-family: var(--font-heading);
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--charcoal-900);
    margin-bottom: 28px;
}

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

.form-group label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--charcoal-700);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--neutral-300);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    color: var(--charcoal-900);
    background: var(--white);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--coral-500);
    box-shadow: 0 0 0 3px rgba(224, 122, 95, 0.15);
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-success {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px;
    background: rgba(224, 122, 95, 0.1);
    border-radius: var(--radius-sm);
    margin-top: 16px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--coral-700);
}

.form-success svg {
    flex-shrink: 0;
    color: var(--coral-500);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--charcoal-900);
    padding: 64px 0 0;
}

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

.footer-brand p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.7;
    margin-top: 16px;
    max-width: 300px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
}

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

.footer-links a {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
    transition: color var(--transition);
}

.footer-links a:hover {
    color: var(--coral-500);
}

.footer-contact p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.8;
}

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

.footer-contact a:hover {
    color: var(--coral-500);
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.35);
}

/* ============================================
   SCROLL REVEAL (progressive enhancement)
   ============================================ */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }

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

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .testimonials-grid .testimonial-card:last-child {
        grid-column: span 2;
        max-width: 50%;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--charcoal-900);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px 32px 40px;
        gap: 24px;
        transition: right var(--transition);
        box-shadow: -8px 0 32px rgba(0, 0, 0, 0.3);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links a {
        font-size: 1rem;
        color: rgba(255, 255, 255, 0.8);
    }

    .hero-content {
        padding: 100px 24px 60px;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-image {
        order: -1;
    }

    .about-values {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .testimonials-grid .testimonial-card:last-child {
        grid-column: span 1;
        max-width: 100%;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .contact-form-wrapper {
        padding: 28px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .hero-actions .btn {
        width: 100%;
        max-width: 280px;
    }

    .cta-actions {
        flex-direction: column;
        align-items: center;
    }

    .cta-actions .btn {
        width: 100%;
        max-width: 280px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-trust {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }

    .service-card {
        padding: 28px 24px;
    }

    .feature-block {
        padding: 28px 24px;
    }

    .contact-form-wrapper {
        padding: 24px;
    }
}