/* CSS Custom Properties */
:root {
    /* Colors */
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #10b981;
    --background-dark: #0f172a;
    --background-light: #f8fafc;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --text-white: #ffffff;
    --border-color: #e2e8f0;
    --card-bg: #ffffff;
    --overlay-bg: rgba(15, 23, 42, 0.95);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Raleway', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--background-light);
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--background-dark);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: var(--transition-normal);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
}

.nav-brand .logo {
    height: 50px;
    width: auto;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--text-white);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    transition: var(--transition-fast);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-white);
    margin: 3px 0;
    transition: var(--transition-fast);
    border-radius: 2px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        linear-gradient(135deg, rgba(15, 23, 42, 0.85) 0%, rgba(30, 58, 138, 0.85) 100%),
        url('../images/ac2026-history-now-future.webp') center/cover no-repeat;
    background-attachment: fixed;
    color: var(--text-white);
    text-align: center;
    padding-top: 80px;
}

.hero-content {
    animation: fadeInUp 1s ease;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.5rem);
    margin-bottom: var(--spacing-md);
    color: rgba(255, 255, 255, 0.9);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-weight: 600;
    border-radius: 6px;
    transition: var(--transition-normal);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--text-white);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--text-white);
}

.btn-secondary:hover {
    background-color: #059669;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Section Styles */
section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* Services Section */
.services {
    background-color: var(--background-light);
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.service-card {
    background-color: var(--card-bg);
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    opacity: 0;
    transform: translateY(30px);
}

.service-card.visible {
    opacity: 1;
    transform: translateY(0);
    animation: fadeInUp 0.6s ease forwards;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.service-icon {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.service-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.service-description {
    color: var(--text-light);
    line-height: 1.7;
}

/* Featured Projects */
.featured-projects {
    margin-top: var(--spacing-xl);
}

.featured-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--text-dark);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
}

.project-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transition: var(--transition-normal);
    opacity: 0;
    transform: translateY(30px);
}

.project-card.visible {
    opacity: 1;
    transform: translateY(0);
    animation: fadeInUp 0.6s ease forwards;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

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

.project-name {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--text-dark);
}

.project-tagline {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
}

.project-description {
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.project-features {
    list-style: disc;
    margin-left: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-light);
}

.project-features li {
    margin-bottom: var(--spacing-xs);
}

/* Games Section */
.games {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    color: var(--text-white);
}

.games .section-title,
.games .section-description {
    color: var(--text-white);
}

.games-timeline {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    font-style: italic;
    text-align: center;
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

/* Hexagon Grid */
.hexagon-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-sm);
    max-width: 700px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

.hexagon-item {
    position: relative;
    aspect-ratio: 1;
    cursor: pointer;
    opacity: 0;
    transform: scale(0.8);
    transition: var(--transition-normal);
}

.hexagon-item.visible {
    opacity: 1;
    transform: scale(1);
    animation: scaleIn 0.5s ease forwards;
}

.hexagon-shape {
    width: 100%;
    height: 100%;
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    background-size: cover;
    background-position: center;
    position: relative;
    transition: var(--transition-normal);
    overflow: hidden;
}

.hexagon-shape::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.8), rgba(16, 185, 129, 0.8));
    opacity: 0;
    transition: var(--transition-normal);
}

.hexagon-item:hover .hexagon-shape::before {
    opacity: 1;
}

.hexagon-item:hover .hexagon-shape {
    transform: scale(1.05);
}

.hexagon-title {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--text-white);
    font-weight: 700;
    font-size: 0.7rem;
    text-align: center;
    opacity: 0;
    transition: var(--transition-normal);
    z-index: 2;
    padding: 0 0.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
}

.hexagon-item:hover .hexagon-title {
    opacity: 1;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--overlay-bg);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    position: relative;
    background-color: var(--card-bg);
    border-radius: 16px;
    max-width: 500px;
    width: 90%;
    max-height: 85vh;
    overflow: hidden;
    z-index: 2001;
    animation: popIn 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    box-shadow: var(--shadow-xl);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--background-dark);
    color: var(--text-white);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
    z-index: 10;
}

.modal-close:hover {
    background-color: var(--primary-color);
    transform: rotate(90deg);
}

.modal-body {
    display: flex;
    flex-direction: column;
    max-height: 85vh;
    overflow-y: auto;
}

.modal-image {
    width: 100%;
    height: auto;
    max-height: 300px;
    object-fit: cover;
    border-radius: 16px 16px 0 0;
}

.modal-info {
    padding: var(--spacing-md);
    flex: 1;
}

.modal-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.modal-description {
    color: var(--text-light);
    font-size: 1rem;
    line-height: 1.6;
}

/* Footer */
.footer {
    background-color: var(--background-dark);
    color: var(--text-white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

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

.footer-section h4 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.footer-vision {
    font-size: 1.125rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
    color: var(--text-white);
}

.footer-description {
    font-size: 0.95rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.65);
    max-width: 800px;
    font-style: italic;
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    transition: var(--transition-fast);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

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

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes popIn {
    0% {
        opacity: 0;
        transform: scale(0.3) rotate(-10deg);
    }
    50% {
        transform: scale(1.05) rotate(2deg);
    }
    100% {
        opacity: 1;
        transform: scale(1) rotate(0deg);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        flex-direction: column;
        background-color: var(--background-dark);
        padding: var(--spacing-md);
        transition: var(--transition-normal);
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

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

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

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

    .project-grid {
        grid-template-columns: 1fr;
    }

    .service-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-md: 1rem;
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
    }

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

    .modal-content {
        width: 95%;
        max-width: 400px;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Focus Styles */
a:focus,
button:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}