/* ===================================
   HARTNAGEL EYE CARE - PREMIUM WEBSITE
   Terracotta + Sand | Dark Luxury
=================================== */

/* CSS Custom Properties */
:root {
    --color-bg-primary: #1A1A1A;
    --color-bg-secondary: #242424;
    --color-bg-tertiary: #2D2D2D;
    --color-bg-card: #262626;
    
    --color-accent-terracotta: #C4724E;
    --color-accent-terracotta-light: #D4896A;
    --color-accent-terracotta-dark: #A85A3A;
    
    --color-accent-sand: #C4A882;
    --color-accent-sand-light: #D4BC9A;
    --color-accent-sand-dark: #A89070;
    
    --color-text-primary: #F5F0EB;
    --color-text-secondary: #B8B0A8;
    --color-text-muted: #8A8078;
    
    --color-border: rgba(196, 168, 130, 0.2);
    --color-border-light: rgba(196, 168, 130, 0.1);
    
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 20px;
    
    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s ease;
    --transition-slow: 0.6s ease;
}

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

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

body {
    font-family: var(--font-body);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

/* ===================================
   NAVIGATION
=================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border-light);
    transition: all var(--transition-medium);
}

.navbar.scrolled {
    background: rgba(26, 26, 26, 0.98);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-accent-sand);
}

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

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

.nav-link {
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--color-text-secondary);
    letter-spacing: 0.02em;
    transition: color var(--transition-fast);
}

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

.nav-cta {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.625rem 1.25rem;
    background: linear-gradient(135deg, var(--color-accent-terracotta), var(--color-accent-terracotta-dark));
    border-radius: var(--border-radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(196, 114, 78, 0.3);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.hamburger {
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: all var(--transition-fast);
}

/* ===================================
   HERO SECTION
=================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -2;
}

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

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(26, 26, 26, 0.92) 0%,
        rgba(26, 26, 26, 0.85) 50%,
        rgba(26, 26, 26, 0.75) 100%
    );
    z-index: -1;
}

.hero .container {
    position: relative;
    z-index: 1;
    padding-top: 120px;
    padding-bottom: 80px;
}

.hero-content {
    max-width: 720px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1rem;
    background: rgba(196, 168, 130, 0.15);
    border: 1px solid var(--color-border);
    border-radius: 50px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-accent-sand);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-md);
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--color-accent-terracotta);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 500;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.hero-title span {
    background: linear-gradient(135deg, var(--color-accent-sand), var(--color-accent-terracotta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 580px;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.9375rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: all var(--transition-fast);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent-terracotta), var(--color-accent-terracotta-dark));
    color: var(--color-text-primary);
    box-shadow: 0 4px 20px rgba(196, 114, 78, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(196, 114, 78, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: rgba(196, 168, 130, 0.1);
    border-color: var(--color-accent-sand);
    color: var(--color-accent-sand);
}

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

.hero-trust {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.trust-item svg {
    color: var(--color-accent-terracotta);
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-muted);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-accent-sand), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0%, 100% { opacity: 1; height: 40px; }
    50% { opacity: 0.5; height: 20px; }
}

/* ===================================
   SECTION STYLES
=================================== */
section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto var(--spacing-lg);
}

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent-terracotta);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* ===================================
   SERVICES SECTION
=================================== */
.services {
    background: var(--color-bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.service-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    transition: all var(--transition-medium);
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-border);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.service-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(196, 114, 78, 0.2), rgba(196, 168, 130, 0.1));
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    color: var(--color-accent-terracotta);
    margin-bottom: var(--spacing-sm);
}

.service-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

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

/* ===================================
   ABOUT SECTION
=================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-image {
    position: relative;
}

.about-img-main {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
}

.about-img-main img {
    width: 100%;
    height: 500px;
    object-fit: cover;
}

.about-img-accent {
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 250px;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    border: 4px solid var(--color-bg-primary);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.about-img-accent img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.about-stats {
    position: absolute;
    top: -20px;
    left: -20px;
    display: flex;
    gap: var(--spacing-sm);
}

.stat-item {
    background: linear-gradient(135deg, var(--color-accent-terracotta), var(--color-accent-terracotta-dark));
    padding: 1.25rem 1.5rem;
    border-radius: var(--border-radius-md);
    text-align: center;
    box-shadow: 0 10px 30px rgba(196, 114, 78, 0.3);
}

.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.stat-label {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.85);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.about-content {
    padding: var(--spacing-md);
}

.about-text {
    font-size: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.9375rem;
    color: var(--color-text-primary);
}

.feature-item svg {
    color: var(--color-accent-terracotta);
    flex-shrink: 0;
}

/* ===================================
   TESTIMONIALS SECTION
=================================== */
.testimonials {
    background: var(--color-bg-secondary);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.testimonial-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    transition: all var(--transition-medium);
}

.testimonial-card:hover {
    border-color: var(--color-border);
    transform: translateY(-3px);
}

.testimonial-quote {
    color: var(--color-accent-sand);
    margin-bottom: var(--spacing-sm);
}

.testimonial-text {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--color-border);
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 500;
    color: var(--color-text-primary);
    font-size: 0.9375rem;
}

.author-location {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

/* ===================================
   CONTACT SECTION
=================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.contact-desc {
    font-size: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(196, 114, 78, 0.15);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    color: var(--color-accent-terracotta);
    flex-shrink: 0;
}

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

.contact-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
}

.contact-value {
    font-size: 0.9375rem;
    color: var(--color-text-primary);
    line-height: 1.6;
}

.contact-value a:hover {
    color: var(--color-accent-terracotta);
}

.contact-map {
    border-radius: var(--border-radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border-light);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
}

.form-header {
    margin-bottom: var(--spacing-md);
}

.form-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.form-subtitle {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-input {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-accent-terracotta);
    box-shadow: 0 0 0 3px rgba(196, 114, 78, 0.15);
}

.form-input::placeholder {
    color: var(--color-text-muted);
}

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

.form-input option {
    background: var(--color-bg-primary);
}

.form-success {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    text-align: center;
    color: var(--color-text-primary);
}

.form-success.show {
    display: flex;
}

.form-success svg {
    color: var(--color-accent-terracotta);
    margin-bottom: var(--spacing-sm);
}

.form-success h4 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.form-success p {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
}

/* ===================================
   FOOTER
=================================== */
.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border-light);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-accent-sand);
    margin-bottom: var(--spacing-sm);
}

.footer-desc {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.footer-title {
    font-family: var(--font-body);
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

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

.footer-contact-info {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-contact-info p {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.footer-phone {
    color: var(--color-accent-terracotta);
}

.footer-phone:hover {
    color: var(--color-accent-terracotta-light);
}

.footer-bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.copyright, .footer-legal {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

/* ===================================
   MOBILE RESPONSIVE
=================================== */
@media (max-width: 1024px) {
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
    }
    
    .about-img-accent {
        right: 20px;
        bottom: -20px;
    }
    
    .about-stats {
        left: 20px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 4rem;
        --spacing-lg: 3rem;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: rgba(26, 26, 26, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        border-bottom: 1px solid var(--color-border);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-medium);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        font-size: 1rem;
        padding: 0.75rem 0;
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .services-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .about-img-main img {
        height: 350px;
    }
    
    .about-img-accent {
        width: 180px;
    }
    
    .about-img-accent img {
        height: 130px;
    }
    
    .about-stats {
        position: relative;
        top: 0;
        left: 0;
        margin-top: var(--spacing-sm);
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-badge {
        font-size: 0.6875rem;
    }
    
    .hero-title {
        font-size: 1.875rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .service-card {
        padding: var(--spacing-sm);
    }
    
    .contact-form-wrapper {
        padding: var(--spacing-sm);
    }
}

/* ===================================
   ACCESSIBILITY
=================================== */
@media (prefers-reduced-motion: no-preference) {
    .service-card,
    .testimonial-card {
        transition: all var(--transition-medium);
    }
}

/* Focus styles */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--color-accent-terracotta);
    outline-offset: 2px;
}

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}