/* ==========================================
   CSS RESET & BASE STYLES
   ========================================== */

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

: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;
    
    /* Accent Colors */
    --color-accent: #0066ff;
    --color-accent-hover: #0052cc;
    
    /* Typography */
    --font-display: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --spacing-2xl: 8rem;
    
    /* Layout */
    --max-width: 1400px;
    --border-radius: 0.5rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

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

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

ul {
    list-style: none;
}

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

/* ==========================================
   CONTAINER & LAYOUT
   ========================================== */

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
}

/* ==========================================
   NAVIGATION
   ========================================== */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-gray-200);
    z-index: 1000;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    font-family: var(--font-display);
}

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

.nav-menu a {
    font-size: 0.9375rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-menu a:hover {
    color: var(--color-accent);
}

.nav-cta {
    background: var(--color-black);
    color: var(--color-white);
    padding: 0.625rem 1.5rem;
    border-radius: 2rem;
    transition: background var(--transition-fast);
}

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

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 0.375rem;
    padding: 0.5rem;
}

.menu-toggle span {
    display: block;
    width: 1.5rem;
    height: 2px;
    background: var(--color-black);
    transition: all var(--transition-fast);
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        gap: 0;
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--color-gray-200);
        opacity: 0;
        pointer-events: none;
        transform: translateY(-10px);
        transition: all var(--transition-normal);
    }
    
    .nav-menu.active {
        opacity: 1;
        pointer-events: all;
        transform: translateY(0);
    }
    
    .nav-menu li {
        width: 100%;
        padding: var(--spacing-sm) 0;
        border-bottom: 1px solid var(--color-gray-100);
    }
    
    .nav-menu li:last-child {
        border-bottom: none;
    }
}

/* ==========================================
   HERO SECTION
   ========================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

/* Parallax Images Container */
.parallax-images {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.parallax-images > div {
    position: absolute;
    overflow: visible;
    opacity: 0.9;
}

.parallax-images img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 1rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

/* Desktop Positioning */
@media (min-width: 1024px) {
    .gt3-image-top-left {
        top: 10%;
        left: 5%;
        width: 200px;
        height: 250px;
    }

    .gt3-image-top-right {
        top: 8%;
        right: 8%;
        width: 180px;
        height: 220px;
    }

    .gt3-image-middle-left {
        top: 45%;
        left: 8%;
        width: 160px;
        height: 200px;
    }

    .gt3-image-middle-right {
        top: 40%;
        right: 5%;
        width: 220px;
        height: 280px;
    }

    .gt3-image-bottom-left {
        bottom: 15%;
        left: 10%;
        width: 180px;
        height: 220px;
    }

    .gt3-image-bottom-right {
        bottom: 12%;
        right: 12%;
        width: 160px;
        height: 200px;
    }
}

/* Mobile & Tablet Positioning */
@media (max-width: 1023px) {
    .parallax-images {
        position: relative;
        height: auto;
        margin-bottom: var(--spacing-lg);
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-sm);
        padding: var(--spacing-md);
    }
    
    .parallax-images > div {
        position: relative;
        top: auto !important;
        left: auto !important;
        right: auto !important;
        bottom: auto !important;
        width: 100% !important;
        height: 150px !important;
        border-radius: 0.5rem;
        opacity: 1;
    }
}

@media (max-width: 640px) {
    .parallax-images {
        grid-template-columns: repeat(2, 1fr);
    }
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero-content {
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 7vw, 5.5rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--spacing-md);
}

.accent {
    color: var(--color-accent);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    z-index: 2;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: var(--color-gray-300);
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 30px;
    background: var(--color-accent);
    animation: scroll-down 2s ease-in-out infinite;
}

@keyframes scroll-down {
    0% {
        transform: translateY(-30px);
    }
    100% {
        transform: translateY(60px);
    }
}

/* ==========================================
   BUTTONS
   ========================================== */

.btn-primary {
    display: inline-block;
    background: var(--color-black);
    color: var(--color-white);
    padding: 1rem 2.5rem;
    border-radius: 3rem;
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-normal);
    border: 2px solid var(--color-black);
}

.btn-primary:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 102, 255, 0.2);
}

/* ==========================================
   SECTION HEADERS
   ========================================== */

.section-header {
    margin-bottom: var(--spacing-xl);
}

.section-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

/* ==========================================
   SERVICES SECTION
   ========================================== */

.services {
    padding: var(--spacing-2xl) 0;
    background: var(--color-gray-100);
}

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

.service-card {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    transition: all var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.service-number {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.service-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-display);
}

.service-card p {
    color: var(--color-gray-600);
    line-height: 1.7;
}

@media (max-width: 768px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   WORK SECTION
   ========================================== */

.work {
    padding: var(--spacing-2xl) 0;
}

.work-grid {
    display: grid;
    gap: var(--spacing-xl);
}

.work-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.work-item:nth-child(even) {
    direction: rtl;
}

.work-item:nth-child(even) > * {
    direction: ltr;
}

.work-image {
    overflow: hidden;
    border-radius: var(--border-radius);
    aspect-ratio: 16 / 10;
}

.work-placeholder {
    width: 100%;
    height: 100%;
    transition: transform var(--transition-slow);
}

.work-item:hover .work-placeholder {
    transform: scale(1.05);
}

.work-info h3 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.work-info p {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.work-meta {
    font-size: 0.875rem;
    color: var(--color-gray-500);
    display: block;
}

@media (max-width: 968px) {
    .work-item,
    .work-item:nth-child(even) {
        grid-template-columns: 1fr;
        direction: ltr;
    }
}

/* ==========================================
   STATS SECTION
   ========================================== */

.stats {
    padding: var(--spacing-2xl) 0;
    background: var(--color-black);
    color: var(--color-white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    text-align: center;
}

.stat-number {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--color-accent);
}

.stat-label {
    font-size: 1rem;
    color: var(--color-gray-400);
}

/* ==========================================
   ABOUT SECTION
   ========================================== */

.about {
    padding: var(--spacing-2xl) 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.about-text p {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-md);
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.feature {
    padding: var(--spacing-md);
    background: var(--color-gray-100);
    border-radius: var(--border-radius);
}

.feature h4 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.feature p {
    color: var(--color-gray-600);
    line-height: 1.6;
}

@media (max-width: 968px) {
    .about-content {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   CONTACT SECTION
   ========================================== */

.contact {
    padding: var(--spacing-2xl) 0;
    background: var(--color-gray-100);
}

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

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

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

.contact-link {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-black);
    transition: color var(--transition-fast);
}

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

.contact-social {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.social-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-gray-600);
    transition: color var(--transition-fast);
}

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

.contact-form {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

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

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

@media (max-width: 968px) {
    .contact-content {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   FOOTER
   ========================================== */

.footer {
    background: var(--color-black);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

.footer-brand p {
    color: var(--color-gray-400);
    margin-top: var(--spacing-sm);
}

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

.footer-column {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-column h5 {
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-column a {
    color: var(--color-gray-400);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-gray-800);
    text-align: center;
    color: var(--color-gray-500);
    font-size: 0.875rem;
}

@media (max-width: 968px) {
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}