/* ============================================
   Robin Gottlieb Hair Studio — Styles
   Classic & Elegant | Midnight Blue + Mint
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
    --midnight: #0D1B2A;
    --midnight-light: #1B2D45;
    --midnight-dark: #070F18;
    --mint: #7FB5A0;
    --mint-light: #A8D4BC;
    --mint-pale: #E8F5EF;
    --cream: #FAFAF8;
    --warm-white: #F5F3EF;
    --text-dark: #1A1A1A;
    --text-muted: #6B6B6B;
    --text-light: #F5F3EF;
    --gold: #C9A96E;
    --gold-light: #D4BA8A;
    
    --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-sans: 'Lato', 'Segoe UI', system-ui, sans-serif;
    
    --shadow-sm: 0 2px 8px rgba(13, 27, 42, 0.06);
    --shadow-md: 0 4px 20px rgba(13, 27, 42, 0.08);
    --shadow-lg: 0 8px 40px rgba(13, 27, 42, 0.12);
    
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-sans);
    color: var(--text-dark);
    background-color: var(--cream);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.2;
    color: var(--midnight);
}

.section-eyebrow {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--mint);
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 500;
    color: var(--midnight);
    margin-bottom: 20px;
}

.section-divider {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--mint), var(--mint-light));
    margin-bottom: 48px;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 14px 32px;
    border-radius: 2px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

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

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

.btn-secondary {
    background-color: transparent;
    color: var(--text-light);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.7);
}

.btn-ghost {
    background-color: transparent;
    color: var(--midnight);
    border: 1px solid var(--midnight);
}

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

.btn-large {
    padding: 18px 40px;
    font-size: 0.9375rem;
}

/* ---------- Navigation ---------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(13, 27, 42, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(127, 181, 160, 0.15);
    transition: var(--transition);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--text-light);
    letter-spacing: 0.02em;
}

.logo-icon {
    color: var(--mint);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-link {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(245, 243, 239, 0.75);
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--mint);
    transition: var(--transition);
}

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

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

.nav-cta {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--midnight);
    background-color: var(--mint);
    padding: 10px 24px;
    border-radius: 2px;
    transition: var(--transition);
}

.nav-cta:hover {
    background-color: var(--mint-light);
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.hamburger {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--text-light);
    transition: var(--transition);
}

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

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

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

/* ---------- Hero ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background-color: var(--midnight-dark);
    background-image: 
        linear-gradient(135deg, rgba(7, 15, 24, 0.85) 0%, rgba(13, 27, 42, 0.75) 50%, rgba(27, 45, 69, 0.8) 100%),
        url('https://images.pexels.com/photos/35844822/pexels-photo-35844822.png?auto=compress&cs=tinysrgb&fit=crop&w=1920&h=1080');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding: 120px 24px 80px;
}

.hero-content {
    max-width: 800px;
    z-index: 1;
}

.hero-eyebrow {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--mint);
    margin-bottom: 24px;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 500;
    line-height: 1.1;
    color: var(--text-light);
    margin-bottom: 24px;
}

.accent-text {
    font-style: italic;
    color: var(--mint-light);
    font-weight: 400;
}

.hero-subtitle {
    font-family: var(--font-sans);
    font-size: clamp(1rem, 1.5vw, 1.1875rem);
    font-weight: 300;
    color: rgba(245, 243, 239, 0.8);
    line-height: 1.8;
    margin-bottom: 48px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

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

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(245, 243, 239, 0.5);
    font-size: 0.6875rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 48px;
    background: linear-gradient(to bottom, var(--mint), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 1; transform: scaleY(1); }
    50% { opacity: 0.5; transform: scaleY(0.8); }
}

/* ---------- Services ---------- */
.services {
    padding: 120px 0;
    background-color: var(--cream);
}

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

.services .section-divider {
    margin-left: auto;
    margin-right: auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.service-card {
    background-color: #fff;
    border-radius: 4px;
    padding: 40px 32px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid rgba(13, 27, 42, 0.04);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(127, 181, 160, 0.3);
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--mint);
    margin-bottom: 24px;
}

.service-title {
    font-size: 1.375rem;
    font-weight: 500;
    margin-bottom: 12px;
    color: var(--midnight);
}

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

/* ---------- About ---------- */
.about {
    padding: 120px 0;
    background-color: var(--warm-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

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

.about-image-wrapper img {
    width: 100%;
    height: 750px;
    object-fit: cover;
    border-radius: 4px;
}

.about-image-accent {
    position: absolute;
    bottom: -24px;
    right: -24px;
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, var(--mint), var(--mint-light));
    border-radius: 4px;
    z-index: -1;
}

.about-content {
    padding: 20px 0;
}

.about-text {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 24px;
}

.about-values {
    margin-top: 48px;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.value-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.value-number {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 500;
    color: var(--mint);
    line-height: 1;
    min-width: 40px;
}

.value-item h4 {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: 4px;
    color: var(--midnight);
}

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

/* ---------- Gallery ---------- */
.gallery {
    padding: 120px 0;
    background-color: var(--cream);
}

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

.gallery .section-divider {
    margin-left: auto;
    margin-right: auto;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-template-rows: repeat(2, 280px);
    gap: 16px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 4px;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(13, 27, 42, 0.7), transparent 60%);
    display: flex;
    align-items: flex-end;
    padding: 24px;
    opacity: 0;
    transition: var(--transition);
}

.gallery-overlay span {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    color: var(--text-light);
    font-style: italic;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-item--large {
    grid-column: 1 / 6;
    grid-row: 1 / 3;
}

.gallery-item--wide {
    grid-column: 6 / 13;
    grid-row: 2 / 3;
}

/* ---------- Testimonials ---------- */
.testimonials {
    padding: 120px 0;
    background-color: var(--midnight);
}

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

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

.testimonials .section-title {
    color: var(--text-light);
}

.testimonials .section-divider {
    margin-left: auto;
    margin-right: auto;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.testimonial-card {
    background-color: var(--midnight-light);
    border-radius: 4px;
    padding: 40px 32px;
    border: 1px solid rgba(127, 181, 160, 0.1);
    transition: var(--transition);
}

.testimonial-card:hover {
    border-color: rgba(127, 181, 160, 0.25);
    transform: translateY(-4px);
}

.testimonial-quote {
    color: var(--mint);
    margin-bottom: 24px;
    opacity: 0.6;
}

.testimonial-text {
    font-family: var(--font-serif);
    font-size: 1.0625rem;
    font-style: italic;
    color: rgba(245, 243, 239, 0.9);
    line-height: 1.8;
    margin-bottom: 24px;
}

.testimonial-author {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-style: normal;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--mint);
}

/* ---------- CTA ---------- */
.cta {
    position: relative;
    padding: 120px 0;
    background-color: var(--midnight);
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(ellipse at 20% 50%, rgba(127, 181, 160, 0.12) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 50%, rgba(201, 169, 110, 0.08) 0%, transparent 60%);
}

.cta .container {
    position: relative;
    text-align: center;
}

.cta-eyebrow {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--mint);
    margin-bottom: 16px;
}

.cta-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3.25rem);
    font-weight: 500;
    color: var(--text-light);
    margin-bottom: 20px;
}

.cta-subtitle {
    font-size: 1.0625rem;
    color: rgba(245, 243, 239, 0.7);
    max-width: 520px;
    margin: 0 auto 48px;
    line-height: 1.8;
}

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

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

.cta .btn-primary:hover {
    background-color: var(--mint-light);
}

.cta .btn-ghost {
    border-color: rgba(245, 243, 239, 0.4);
    color: var(--text-light);
}

.cta .btn-ghost:hover {
    background-color: rgba(245, 243, 239, 0.1);
    border-color: rgba(245, 243, 239, 0.7);
}

/* ---------- Contact ---------- */
.contact {
    padding: 120px 0;
    background-color: var(--cream);
}

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

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 32px;
    margin-top: 40px;
}

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

.contact-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--mint-pale);
    border-radius: 50%;
    color: var(--mint);
    flex-shrink: 0;
}

.contact-item h4 {
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 4px;
    color: var(--midnight);
}

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

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

.contact-item a:hover {
    color: var(--mint-light);
    text-decoration: underline;
}

.contact-hours {
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid rgba(13, 27, 42, 0.08);
}

.contact-hours h4 {
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 16px;
    color: var(--midnight);
}

.contact-hours ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.contact-hours li {
    display: flex;
    justify-content: space-between;
    font-size: 0.9375rem;
    color: var(--text-muted);
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(13, 27, 42, 0.04);
}

.contact-hours li span:first-child {
    font-weight: 500;
    color: var(--text-dark);
}

.contact-map {
    border-radius: 4px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    min-height: 480px;
}

/* ---------- Footer ---------- */
.footer {
    background-color: var(--midnight-dark);
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 64px;
    margin-bottom: 64px;
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--text-light);
    margin-bottom: 4px;
}

.footer-tagline {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--mint);
    margin-bottom: 20px;
}

.footer-desc {
    font-size: 0.9375rem;
    color: rgba(245, 243, 239, 0.6);
    line-height: 1.7;
    max-width: 300px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-light);
    margin-bottom: 20px;
}

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

.footer-links a {
    font-size: 0.9375rem;
    color: rgba(245, 243, 239, 0.6);
    transition: var(--transition);
}

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

.footer-contact p {
    font-size: 0.9375rem;
    color: rgba(245, 243, 239, 0.6);
    line-height: 1.8;
}

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

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

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid rgba(245, 243, 239, 0.08);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: rgba(245, 243, 239, 0.4);
}

/* ---------- 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: 1 / -1;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 48px;
    }
    
    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background-color: rgba(13, 27, 42, 0.98);
        backdrop-filter: blur(12px);
        flex-direction: column;
        gap: 0;
        padding: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .nav-menu.open {
        max-height: 400px;
    }
    
    .nav-link {
        padding: 16px 24px;
        width: 100%;
        text-align: center;
        border-top: 1px solid rgba(127, 181, 160, 0.1);
    }
    
    .nav-link::after {
        display: none;
    }
    
    .nav-cta {
        margin: 16px 24px 24px;
        text-align: center;
        display: block;
    }
    
    .hero {
        background-attachment: scroll;
    }
    
    .hero-title {
        font-size: clamp(2rem, 8vw, 3rem);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .about-image-wrapper img {
        height: 500px;
    }
    
    .about-image-accent {
        width: 120px;
        height: 120px;
        bottom: -16px;
        right: -16px;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto;
    }
    
    .gallery-item--large {
        grid-column: 1 / -1;
        grid-row: auto;
        min-height: 300px;
    }
    
    .gallery-item--wide {
        grid-column: 1 / -1;
        grid-row: auto;
        min-height: 240px;
    }
    
    .gallery-item {
        min-height: 200px;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid .testimonial-card:last-child {
        max-width: 100%;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-actions .btn {
        width: 100%;
        max-width: 320px;
        justify-content: center;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .contact-map {
        min-height: 320px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-brand {
        grid-column: auto;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .services,
    .about,
    .gallery,
    .testimonials,
    .cta,
    .contact {
        padding: 80px 0;
    }
    
    .service-card {
        padding: 32px 24px;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-item--large,
    .gallery-item--wide {
        grid-column: auto;
    }
}