/* ============================================
   STUTTGART DESIGN STUDIO
   Editorial/Magazine Aesthetic
   ============================================ */

/* CSS Variables - Noir Editorial Palette */
:root {
    /* Colors */
    --color-bg: #0F0F0F;
    --color-surface: #1A1A1A;
    --color-surface-light: #2A2A2A;
    --color-text: #E8E4DF;
    --color-text-muted: #A39E93;
    --color-accent: #C8B8A0;
    --color-accent-hover: #D4C5A9;
    
    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;
    --space-3xl: 8rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
}

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

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

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -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);
}

ul {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    transition: background-color var(--transition-base), padding var(--transition-base);
}

.nav--scrolled {
    background-color: rgba(15, 15, 15, 0.95);
    backdrop-filter: blur(20px);
    padding: var(--space-sm) 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.logo {
    display: flex;
    flex-direction: column;
    line-height: 1;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

.logo-accent {
    font-family: var(--font-body);
    font-size: 0.65rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    margin-top: 0.15rem;
}

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

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
    position: relative;
}

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

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

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

.nav-link--cta {
    background-color: var(--color-accent);
    color: var(--color-bg);
    padding: 0.6rem 1.5rem;
    border-radius: var(--radius-sm);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.nav-link--cta::after {
    display: none;
}

.nav-link--cta:hover {
    background-color: var(--color-accent-hover);
    color: var(--color-bg);
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    transition: transform var(--transition-base), opacity var(--transition-base);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    padding: calc(var(--space-3xl) + 60px) var(--space-lg) var(--space-2xl);
    gap: var(--space-xl);
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 600px;
    animation: fadeInUp 1s ease-out;
}

.hero-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 500;
    line-height: 1.05;
    margin-bottom: var(--space-md);
    letter-spacing: -0.03em;
}

.hero-line {
    display: block;
}

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

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
    max-width: 480px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
}

.btn--primary {
    background-color: var(--color-accent);
    color: var(--color-bg);
}

.btn--primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
}

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

.btn--secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn--full {
    width: 100%;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    animation: fadeIn 1.2s ease-out 0.3s both;
}

.hero-image-container {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 4/5;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(30%) contrast(1.1);
    transition: transform var(--transition-slow), filter var(--transition-slow);
}

.hero-image-container:hover .hero-image {
    transform: scale(1.03);
    filter: grayscale(0%) contrast(1);
}

.hero-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 15, 15, 0.6) 0%, transparent 50%);
    pointer-events: none;
}

/* Hero Stats */
.hero-stats {
    position: absolute;
    bottom: -30px;
    left: -40px;
    right: 40px;
    display: flex;
    gap: var(--space-lg);
    background-color: var(--color-surface);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-accent);
    line-height: 1;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 0.25rem;
}

/* ============================================
   SECTIONS COMMON
   ============================================ */
.section-header {
    margin-bottom: var(--space-2xl);
}

.section-header--centered {
    text-align: center;
}

.section-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 500;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services {
    padding: var(--space-3xl) 0;
    background-color: var(--color-surface);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

.service-card {
    background-color: var(--color-bg);
    padding: var(--space-xl);
    border-radius: var(--radius-md);
    transition: transform var(--transition-base), box-shadow 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(--color-accent), transparent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

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

.service-card--featured {
    background-color: var(--color-surface-light);
    border: 1px solid var(--color-accent);
}

.service-icon {
    width: 48px;
    height: 48px;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--space-sm);
}

.service-description {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
    line-height: 1.6;
}

.service-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.service-list li {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    padding-left: 1rem;
    position: relative;
}

.service-list li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

/* ============================================
   WORK/PORTFOLIO SECTION
   ============================================ */
.work {
    padding: var(--space-3xl) 0;
}

.work-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 300px;
    gap: var(--space-md);
}

.work-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
}

.work-item--large {
    grid-column: span 2;
    grid-row: span 2;
}

.work-item--wide {
    grid-column: span 2;
}

.work-image {
    position: relative;
    width: 100%;
    height: 100%;
}

.work-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.work-item:hover .work-image img {
    transform: scale(1.08);
}

.work-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 15, 15, 0.95) 0%, rgba(15, 15, 15, 0.3) 50%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--space-lg);
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.work-category {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    margin-bottom: var(--space-xs);
}

.work-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 500;
    margin-bottom: var(--space-xs);
}

.work-description {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    max-width: 300px;
}

.work-cta {
    text-align: center;
    margin-top: var(--space-2xl);
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    padding: var(--space-3xl) 0;
    background-color: var(--color-surface);
}

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

.about-content {
    max-width: 540px;
}

.about-content .section-title {
    margin-bottom: var(--space-lg);
}

.about-text {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
    line-height: 1.8;
}

.about-values {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-surface-light);
}

.value {
    position: relative;
}

.value-number {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent);
    opacity: 0.5;
    margin-bottom: var(--space-xs);
    display: block;
}

.value-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: var(--space-xs);
}

.value-description {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* About Visual */
.about-visual {
    position: relative;
}

.about-image-container {
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 4/5;
}

.about-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(20%);
}

.about-quote {
    position: absolute;
    bottom: -30px;
    left: -40px;
    background-color: var(--color-bg);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    max-width: 320px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.about-quote blockquote {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-style: italic;
    line-height: 1.5;
    margin-bottom: var(--space-sm);
}

.about-quote cite {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    font-style: normal;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    padding: var(--space-3xl) 0;
}

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

.contact-info .section-title {
    margin-bottom: var(--space-lg);
}

.contact-text {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

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

.contact-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.contact-label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-muted);
}

.contact-link {
    font-size: 1.1rem;
    color: var(--color-text);
    position: relative;
    display: inline-block;
}

.contact-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent);
    transition: width var(--transition-base);
}

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

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

.contact-value {
    font-size: 1.1rem;
    color: var(--color-text);
}

/* Social Links */
.social-links {
    display: flex;
    gap: var(--space-sm);
}

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-surface-light);
    border-radius: 50%;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.social-link:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-3px);
}

/* Contact Form */
.contact-form-container {
    background-color: var(--color-surface);
    padding: var(--space-xl);
    border-radius: var(--radius-md);
}

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

.form-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-xs);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 1rem;
    background-color: var(--color-bg);
    border: 1px solid var(--color-surface-light);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-accent);
}

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

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23A39E93' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    padding: var(--space-2xl) 0 var(--space-lg);
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-surface-light);
}

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

.footer-logo {
    display: flex;
    flex-direction: column;
    line-height: 1;
    margin-bottom: var(--space-md);
}

.footer-logo .logo-text {
    font-size: 1.75rem;
}

.footer-logo .logo-accent {
    font-size: 0.75rem;
}

.footer-tagline {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    max-width: 280px;
}

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

.footer-heading {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

.footer-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.footer-list a {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

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

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

.footer-copyright {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.footer-legal {
    display: flex;
    gap: var(--space-lg);
}

.footer-legal a {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

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

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1200px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .work-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .work-item--large {
        grid-column: span 2;
        grid-row: span 1;
    }
    
    .work-item--wide {
        grid-column: span 2;
    }
}

@media (max-width: 992px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: calc(var(--space-2xl) + 60px);
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-visual {
        order: -1;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .hero-stats {
        position: relative;
        bottom: auto;
        left: auto;
        right: auto;
        margin-top: var(--space-md);
    }
    
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .about-visual {
        order: -1;
    }
    
    .about-quote {
        left: auto;
        right: 20px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--color-surface);
        flex-direction: column;
        padding: calc(var(--space-3xl) + 60px) var(--space-lg) var(--space-lg);
        gap: var(--space-md);
        transition: right var(--transition-base);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .work-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: 250px;
    }
    
    .work-item--large,
    .work-item--wide {
        grid-column: span 1;
    }
    
    .about-values {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-sm);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .btn {
        width: 100%;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}