/**
 * Softal Dijital - Layout System
 * Grid, Flexbox & Responsive Layouts
 * Version: 2.0
 */

/* ========================================
   GRID SYSTEMS
   ======================================== */

.grid {
    display: grid;
    gap: var(--space-6);
}

.grid-cols-1 {
    grid-template-columns: repeat(1, 1fr);
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

.grid-cols-6 {
    grid-template-columns: repeat(6, 1fr);
}

.grid-cols-12 {
    grid-template-columns: repeat(12, 1fr);
}

/* Responsive Grid */
@media (max-width: 1024px) {
    .grid-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-cols-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {

    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4,
    .grid-cols-6 {
        grid-template-columns: 1fr;
    }
}

/* Masonry Grid */
.masonry-grid {
    column-count: 3;
    column-gap: var(--space-6);
}

.masonry-grid>* {
    break-inside: avoid;
    margin-bottom: var(--space-6);
}

@media (max-width: 1024px) {
    .masonry-grid {
        column-count: 2;
    }
}

@media (max-width: 768px) {
    .masonry-grid {
        column-count: 1;
    }
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: transparent;
    transition: background 0.4s ease, box-shadow 0.4s ease;
}

.header.scrolled {
    background: rgba(5, 5, 15, 0.72);
    backdrop-filter: blur(24px) saturate(1.8);
    -webkit-backdrop-filter: blur(24px) saturate(1.8);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06), 0 8px 32px rgba(0, 0, 0, 0.4);
    border-bottom: 1px solid rgba(124, 58, 237, 0.18);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-8);
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--color-neutral-50);
    text-decoration: none;
    z-index: 2;
}

.logo img {
    height: 40px;
    width: auto;
}

/* Desktop Navigation */
.nav-desktop {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

@media (max-width: 1024px) {
    .nav-desktop {
        display: none;
    }
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    width: 30px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 2;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--color-neutral-50);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translateY(9px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translateY(-9px);
}

@media (max-width: 1024px) {
    .mobile-menu-toggle {
        display: flex;
    }
}

/* Mobile Navigation */
.nav-mobile {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 400px;
    height: 100vh;
    background: var(--color-neutral-900);
    padding: var(--space-20) var(--space-6);
    transition: right var(--transition-slow);
    z-index: 1;
    overflow-y: auto;
}

.nav-mobile.active {
    right: 0;
}

.nav-mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 0;
}

.nav-mobile-overlay.active {
    opacity: 1;
    visibility: visible;
}

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

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-20) 0;
    overflow: hidden;
    background: var(--gradient-hero);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(59, 130, 246, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.hero-title {
    font-size: var(--text-6xl);
    font-weight: var(--font-black);
    line-height: var(--leading-tight);
    margin-bottom: var(--space-6);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--text-xl);
    color: var(--color-neutral-300);
    margin-bottom: var(--space-8);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .hero {
        min-height: 80vh;
        padding: var(--space-16) 0;
    }

    .hero-title {
        font-size: var(--text-4xl);
    }

    .hero-subtitle {
        font-size: var(--text-lg);
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-8);
}

.service-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

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

.service-card:hover {
    transform: translateY(-8px);
    background: rgba(30, 41, 59, 0.9);
    border-color: var(--color-primary-500);
    box-shadow: var(--shadow-2xl);
}

.service-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-4);
    font-size: var(--text-3xl);
}

.service-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-3);
    color: var(--color-neutral-50);
}

.service-description {
    color: var(--color-neutral-400);
    line-height: var(--leading-relaxed);
}

/* ========================================
   PROJECTS SECTION
   ======================================== */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--space-6);
}

.project-card {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    cursor: pointer;
    transition: transform var(--transition-base);
}

.project-card:hover {
    transform: scale(1.02);
}

.project-image {
    position: relative;
    width: 100%;
    padding-top: 66.67%;
    /* 3:2 aspect ratio */
    overflow: hidden;
    background: linear-gradient(135deg, #7c3aed 0%, #a78bfa 50%, #d946ef 100%);
}

.project-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-overlay);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--space-6);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: white;
    margin-bottom: var(--space-2);
}

.project-description {
    color: var(--color-neutral-200);
    margin-bottom: var(--space-4);
}

.project-tags {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

/* ========================================
   STATISTICS SECTION
   ======================================== */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-8);
}

.stat-card {
    text-align: center;
    padding: var(--space-6);
}

.stat-number {
    font-size: var(--text-5xl);
    font-weight: var(--font-black);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-2);
}

.stat-label {
    font-size: var(--text-lg);
    color: var(--color-neutral-400);
}

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

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-12);
}

@media (max-width: 1024px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.contact-item:hover {
    background: rgba(30, 41, 59, 0.9);
    border-color: var(--color-primary-500);
    transform: translateX(8px);
}

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

.footer {
    background: var(--color-neutral-950);
    border-top: 1px solid var(--color-neutral-800);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

.footer-column h3 {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-4);
    color: var(--color-neutral-50);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-link {
    color: var(--color-neutral-400);
    text-decoration: none;
    transition: color var(--transition-base);
}

.footer-link:hover {
    color: var(--color-primary-400);
}

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-neutral-800);
    text-align: center;
    color: var(--color-neutral-500);
}

.social-links {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    margin-top: var(--space-6);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-neutral-800);
    border-radius: var(--radius-lg);
    color: var(--color-neutral-400);
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--color-primary-500);
    color: white;
    transform: translateY(-4px);
}

/* ========================================
   BACK TO TOP BUTTON
   ======================================== */

.back-to-top {
    position: fixed;
    bottom: var(--space-8);
    right: var(--space-8);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-full);
    color: white;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: var(--z-sticky);
    box-shadow: var(--shadow-xl);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl), var(--shadow-glow);
}

/* ========================================
   RESPONSIVE UTILITIES
   ======================================== */

@media (max-width: 768px) {
    .container {
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }

    .section {
        padding-top: var(--space-12);
        padding-bottom: var(--space-12);
    }
}