/* ========================================
   Vertex Studio - Global Styles
   Minimalist Luxury Aesthetic
   ======================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-black: #0a0a0a;
    --color-white: #ffffff;
    --color-gray-100: #f5f5f5;
    --color-gray-200: #e5e5e5;
    --color-gray-300: #d4d4d4;
    --color-gray-400: #a3a3a3;
    --color-gray-500: #737373;
    --color-gray-600: #525252;
    --color-gray-700: #404040;
    --color-gray-800: #262626;
    --color-gray-900: #171717;
    
    /* Typography */
    --font-display: 'Cormorant Garamond', serif;
    --font-body: 'Manrope', sans-serif;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Layout */
    --container-max: 1400px;
    --nav-height: 80px;
}

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

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

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-gray-900);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Selection */
::selection {
    background: var(--color-gray-900);
    color: var(--color-white);
}

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

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

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

/* ========================================
   Navigation
   ======================================== */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    background: transparent;
    transition: background var(--transition-base), box-shadow var(--transition-base);
}

.nav.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 0 var(--color-gray-200);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.nav-logo {
    display: flex;
    align-items: baseline;
    gap: var(--space-xs);
    font-family: var(--font-display);
    font-size: 1.25rem;
    letter-spacing: 0.15em;
}

.logo-vertex {
    font-weight: 600;
    color: var(--color-gray-900);
}

.logo-studio {
    font-weight: 300;
    color: var(--color-gray-500);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-2xl);
    list-style: none;
}

.nav-menu a {
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    color: var(--color-gray-600);
    position: relative;
    padding: var(--space-sm) 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-gray-900);
    transition: width var(--transition-base);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--color-gray-900);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    padding: var(--space-sm);
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 1px;
    background: var(--color-gray-900);
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle.active span:first-child {
    transform: translateY(3.5px) rotate(45deg);
}

.nav-toggle.active span:last-child {
    transform: translateY(-3.5px) rotate(-45deg);
}

/* ========================================
   Buttons
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-primary {
    background: var(--color-gray-900);
    color: var(--color-white);
    border-color: var(--color-gray-900);
}

.btn-primary:hover {
    background: var(--color-black);
    border-color: var(--color-black);
}

.btn-outline {
    background: transparent;
    color: var(--color-gray-900);
    border-color: var(--color-gray-900);
}

.btn-outline:hover {
    background: var(--color-gray-900);
    color: var(--color-white);
}

.btn-ghost {
    background: transparent;
    color: var(--color-gray-600);
    border-color: var(--color-gray-300);
}

.btn-ghost:hover {
    color: var(--color-gray-900);
    border-color: var(--color-gray-900);
}

.btn-large {
    padding: var(--space-lg) var(--space-2xl);
    font-size: 1rem;
}

/* ========================================
   Section Headers
   ======================================== */

.section-header {
    display: flex;
    align-items: baseline;
    gap: var(--space-lg);
    margin-bottom: var(--space-3xl);
}

.section-number {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--color-gray-400);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    letter-spacing: -0.02em;
    color: var(--color-gray-900);
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: #1a1a1a;
}

.hero-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    opacity: 0.5;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 80%, rgba(0,0,0,0.03) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(0,0,0,0.02) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    text-align: center;
    padding: var(--space-4xl) var(--space-xl);
    max-width: 900px;
}

.hero-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
    animation: fadeInUp 0.8s ease-out;
}

.badge-line {
    width: 40px;
    height: 1px;
    background: var(--color-gray-400);
}

.badge-text {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-gray-500);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(4rem, 12vw, 10rem);
    font-weight: 300;
    line-height: 0.9;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-lg);
    animation: fadeInUp 0.8s ease-out 0.1s backwards;
}

.title-main {
    display: block;
    color: #ffffff;
}

.title-accent {
    display: block;
    color: rgba(255,255,255,0.6);
    font-weight: 300;
}

.hero-subtitle {
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    font-weight: 400;
    color: rgba(255,255,255,0.8);
    margin-bottom: var(--space-md);
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.hero-tagline {
    font-size: 0.875rem;
    font-weight: 400;
    color: rgba(255,255,255,0.5);
    max-width: 500px;
    margin: 0 auto var(--space-2xl);
    animation: fadeInUp 0.8s ease-out 0.3s backwards;
}

.hero-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-3xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    animation: fadeIn 1s ease-out 0.8s backwards;
}

.hero-scroll span {
    font-size: 0.625rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-gray-400);
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-gray-400), 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 Preview
   ======================================== */

.services-preview {
    padding: var(--space-5xl) 0;
    background: var(--color-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2xl);
}

.service-card {
    padding: var(--space-2xl);
    border: 1px solid var(--color-gray-200);
    transition: border-color var(--transition-base), transform var(--transition-base);
}

.service-card:hover {
    border-color: var(--color-gray-400);
    transform: translateY(-4px);
}

.service-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--space-lg);
    color: var(--color-gray-700);
}

.service-card h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    line-height: 1.3;
    margin-bottom: var(--space-md);
    color: var(--color-gray-900);
}

.service-card p {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    margin-bottom: var(--space-lg);
    line-height: 1.7;
}

.service-link {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--color-gray-500);
    transition: color var(--transition-fast);
}

.service-link:hover {
    color: var(--color-gray-900);
}

/* ========================================
   Featured Projects
   ======================================== */

.featured-projects {
    padding: var(--space-5xl) 0;
    background: var(--color-gray-100);
}

.projects-showcase {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 300px);
    gap: var(--space-lg);
}

.project-card {
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.project-large {
    grid-row: span 2;
}

.project-image {
    position: absolute;
    inset: 0;
    background: var(--color-gray-200);
    overflow: hidden;
}

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

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--color-gray-500);
    background: linear-gradient(135deg, var(--color-gray-200), var(--color-gray-300));
    transition: opacity var(--transition-base);
}

.project-card:hover .project-placeholder {
    opacity: 0.7;
}

.project-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-xl);
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    color: var(--color-white);
    transform: translateY(20px);
    opacity: 0;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.project-card:hover .project-info {
    transform: translateY(0);
    opacity: 1;
}

.project-category {
    display: inline-block;
    font-size: 0.625rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
    opacity: 0.7;
}

.project-info h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 400;
    margin-bottom: var(--space-xs);
}

.project-location {
    font-size: 0.75rem;
    opacity: 0.7;
}

.projects-cta {
    text-align: center;
    margin-top: var(--space-3xl);
}

/* ========================================
   Clients
   ======================================== */

.clients {
    padding: var(--space-4xl) 0;
    background: var(--color-white);
    overflow: hidden;
}

.clients-marquee {
    position: relative;
}

.clients-track {
    display: flex;
    gap: var(--space-4xl);
    animation: marquee 30s linear infinite;
}

.client-logo {
    flex-shrink: 0;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--color-gray-400);
    white-space: nowrap;
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ========================================
   CTA Section
   ======================================== */

.cta-section {
    padding: var(--space-5xl) 0;
    background: var(--color-gray-900);
    color: var(--color-white);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    line-height: 1.2;
    margin-bottom: var(--space-lg);
}

.cta-content p {
    font-size: 1rem;
    color: var(--color-gray-400);
    margin-bottom: var(--space-2xl);
}

.cta-section .btn-primary {
    background: var(--color-white);
    color: var(--color-gray-900);
    border-color: var(--color-white);
}

.cta-section .btn-primary:hover {
    background: var(--color-gray-100);
    border-color: var(--color-gray-100);
}

/* ========================================
   Footer
   ======================================== */

.footer {
    padding: var(--space-3xl) 0;
    background: var(--color-gray-100);
    border-top: 1px solid var(--color-gray-200);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-xl);
}

.footer-brand {
    display: flex;
    align-items: baseline;
    gap: var(--space-xs);
    font-family: var(--font-display);
    font-size: 1rem;
    letter-spacing: 0.15em;
}

.footer-contact a {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    transition: color var(--transition-fast);
}

.footer-contact a:hover {
    color: var(--color-gray-900);
}

.footer-copyright p {
    font-size: 0.75rem;
    color: var(--color-gray-500);
}

/* ========================================
   Page Header (for inner pages)
   ======================================== */

.page-header {
    padding: calc(var(--nav-height) + var(--space-5xl)) 0 var(--space-4xl);
    background: var(--color-gray-100);
}

.page-header-content {
    max-width: 800px;
}

.page-header .section-number {
    display: block;
    margin-bottom: var(--space-lg);
}

.page-header h1 {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 400;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
}

.page-header p {
    font-size: 1rem;
    color: var(--color-gray-600);
    max-width: 600px;
}

/* ========================================
   Projects Page
   ======================================== */

.projects-section {
    padding: var(--space-4xl) 0 var(--space-5xl);
}

.projects-filter {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--space-sm) var(--space-lg);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    background: transparent;
    border: 1px solid var(--color-gray-300);
    color: var(--color-gray-600);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--color-gray-900);
    border-color: var(--color-gray-900);
    color: var(--color-white);
}

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

.projects-grid .project-card {
    aspect-ratio: 4/3;
}

.projects-grid .project-info {
    transform: translateY(0);
    opacity: 1;
}

/* ========================================
   Services Page
   ======================================== */

.services-section {
    padding: var(--space-4xl) 0 var(--space-5xl);
}

.services-list {
    display: flex;
    flex-direction: column;
}

.service-item {
    display: grid;
    grid-template-columns: 80px 1fr 1fr;
    gap: var(--space-2xl);
    padding: var(--space-2xl) 0;
    border-bottom: 1px solid var(--color-gray-200);
    align-items: start;
}

.service-number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 300;
    color: var(--color-gray-400);
}

.service-content h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: var(--space-sm);
}

.service-content p {
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

.service-description {
    font-size: 0.875rem;
    color: var(--color-gray-500);
    line-height: 1.8;
}

/* ========================================
   Team Page
   ======================================== */

.team-section {
    padding: var(--space-4xl) 0 var(--space-5xl);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2xl);
}

.team-card {
    padding: var(--space-xl);
    border: 1px solid var(--color-gray-200);
}

.team-avatar {
    width: 80px;
    height: 80px;
    background: var(--color-gray-200);
    margin-bottom: var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-gray-500);
}

.team-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 400;
    margin-bottom: var(--space-xs);
}

.team-role {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    color: var(--color-gray-500);
}

/* ========================================
   About Page
   ======================================== */

.about-section {
    padding: var(--space-4xl) 0 var(--space-5xl);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
}

.about-text h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 400;
    margin-bottom: var(--space-lg);
}

.about-text p {
    font-size: 1rem;
    color: var(--color-gray-600);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
}

.stat-item {
    padding: var(--space-xl);
    background: var(--color-gray-100);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 300;
    color: var(--color-gray-900);
    line-height: 1;
    margin-bottom: var(--space-sm);
}

.stat-label {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--color-gray-500);
}

/* ========================================
   Contact Page
   ======================================== */

.contact-section {
    padding: var(--space-4xl) 0 var(--space-5xl);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
}

.contact-info h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 400;
    margin-bottom: var(--space-lg);
}

.contact-info p {
    font-size: 1rem;
    color: var(--color-gray-600);
    margin-bottom: var(--space-2xl);
}

.contact-email {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.contact-email-label {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--color-gray-500);
}

.contact-email a {
    font-size: 1rem;
    color: var(--color-gray-900);
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.form-group label {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--color-gray-600);
}

.form-group input,
.form-group textarea {
    padding: var(--space-md);
    font-family: var(--font-body);
    font-size: 1rem;
    border: 1px solid var(--color-gray-300);
    background: var(--color-white);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-gray-900);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* ========================================
   Animations
   ======================================== */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .service-item {
        grid-template-columns: 60px 1fr;
    }
    
    .service-description {
        display: none;
    }
}

@media (max-width: 768px) {
    :root {
        --nav-height: 60px;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        justify-content: center;
        gap: var(--space-xl);
        background: var(--color-white);
        opacity: 0;
        visibility: hidden;
        transition: opacity var(--transition-base), visibility var(--transition-base);
    }
    
    .nav-menu.active {
        opacity: 1;
        visibility: visible;
    }
    
    .nav-menu a {
        font-size: 1.25rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-showcase {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }
    
    .project-large {
        grid-row: span 1;
        aspect-ratio: 16/9;
    }
    
    .projects-showcase .project-card {
        aspect-ratio: 16/9;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .section-header {
        flex-direction: column;
        gap: var(--space-sm);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-lg);
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
}