/* ========================================
   Global Styles & Reset
   ======================================== */

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

:root {
    /* Color Palette - Simple and Clean */
    --primary-color: #4f46e5;
    --primary-dark: #4338ca;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;

    /* Neutral Colors */
    --dark: #1f2937;
    --gray: #6b7280;
    --gray-light: #9ca3af;
    --light: #f3f4f6;
    --white: #ffffff;

    /* Simple Gradient */
    --gradient-primary: linear-gradient(120deg, #4f46e5 0%, #7c3aed 100%);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
    --font-mono: "Courier New", Courier, monospace;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* 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);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition: all 0.3s ease;
}

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

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

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

/* ========================================
   Typography
   ======================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: 2.5rem;
}
h2 {
    font-size: 2rem;
}
h3 {
    font-size: 1.5rem;
}
h4 {
    font-size: 1.25rem;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--dark);
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--gray);
    margin-bottom: var(--spacing-xl);
}

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

.navbar {
    background: var(--white);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 16px 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: #000000;
}

.nav-brand i {
    color: #000000;
}

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

.nav-menu a {
    color: var(--dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
    padding: 8px 12px;
    border-radius: 6px;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--dark);
    border-radius: 2px;
    transition: var(--transition);
}

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

.hero {
    background: linear-gradient(135deg, #dbeafe 0%, #ffffff 50%, #f3e8ff 100%);
    color: #1f2937;
    padding: 80px 0 60px;
    min-height: 600px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

/* Animated Background Blobs */
.hero-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    mix-blend-mode: multiply;
    opacity: 0.3;
    animation: blob 7s infinite;
}

.hero-blob-1 {
    width: 300px;
    height: 300px;
    background: #bfdbfe;
    top: 10%;
    left: 10%;
}

.hero-blob-2 {
    width: 350px;
    height: 350px;
    background: #ddd6fe;
    top: 30%;
    right: 10%;
    animation-delay: 2s;
}

.hero-blob-3 {
    width: 280px;
    height: 280px;
    background: #fbcfe8;
    bottom: 10%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes blob {
    0%,
    100% {
        transform: translate(0px, 0px) scale(1);
    }
    33% {
        transform: translate(30px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 24px;
    font-weight: 700;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 40px;
    opacity: 0.9;
    font-weight: 400;
    line-height: 1.6;
}

.hero-description {
    font-size: 1.05rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
    line-height: 1.7;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.8s ease 0.6s backwards;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    animation: fadeInUp 0.8s ease 0.8s backwards;
}

.tech-badge {
    background: rgba(255, 255, 255, 0.15);
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: 2px solid transparent;
    font-size: 0.95rem;
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.05rem;
    font-weight: 600;
}

.btn-primary {
    background: #000000;
    color: #ffffff;
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    background: #1f2937;
}

.btn-outline {
    background: transparent;
    color: #1f2937;
    border-color: #1f2937;
}

.btn-outline:hover {
    background: #1f2937;
    color: #ffffff;
    transform: translateY(-2px) scale(1.05);
}

/* ========================================
   Stats Section
   ======================================== */

.stats {
    background: var(--light);
    padding: var(--spacing-xl) 0;
}

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

.stat-item {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.stat-item i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-item p {
    color: var(--gray);
    font-weight: 600;
}

/* ========================================
   Features Section
   ======================================== */

.features {
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    padding: var(--spacing-lg);
    background: var(--white);
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-xl);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.feature-icon i {
    font-size: 1.25rem;
    color: var(--white);
}

.feature-card h3 {
    color: var(--dark);
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--gray);
    line-height: 1.8;
}

/* ========================================
   Architecture Section
   ======================================== */

.architecture {
    background: var(--light);
}

.architecture-diagram {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.architecture-diagram img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
}

#arch-diagram {
    min-height: 400px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
}

#arch-diagram::before {
    content: "🏗️ Architecture Diagram";
}

.architecture-patterns {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.architecture-patterns h3 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-size: 1.75rem;
}

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

.pattern-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--light);
    border-radius: var(--radius-md);
    font-weight: 600;
}

.pattern-item i {
    color: var(--success-color);
    font-size: 1.25rem;
}

/* ========================================
   Services Section
   ======================================== */

.services {
    background: var(--white);
}

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

.service-category h3.category-title {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.service-card {
    background: var(--white);
    border: 2px solid #e2e8f0;
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-xl);
    transform: translateX(5px);
}

.service-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.service-header h4 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--dark);
}

.port-badge {
    background: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.875rem;
}

.service-card > p {
    color: var(--gray);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.service-card ul {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.service-card ul li {
    padding: var(--spacing-xs) 0;
    color: var(--dark-light);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.service-card ul li::before {
    content: "✓";
    color: var(--success-color);
    font-weight: bold;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tech-tags span {
    background: var(--light);
    color: var(--primary-color);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
}

/* ========================================
   Demo Section
   ======================================== */

.demo {
    background: var(--light);
}

.video-container {
    margin-bottom: var(--spacing-xl);
}

.video-placeholder {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    text-align: center;
    color: var(--white);
    min-height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.video-placeholder i {
    font-size: 5rem;
    margin-bottom: var(--spacing-md);
}

.video-placeholder p {
    font-size: 1.5rem;
    font-weight: 600;
}

.video-placeholder .small-text {
    font-size: 1rem;
    opacity: 0.9;
}

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

.screenshot-item h4 {
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.screenshot-placeholder {
    background: var(--white);
    border: 2px dashed #cbd5e1;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.screenshot-placeholder:hover {
    border-color: var(--primary-color);
    background: var(--light);
}

.screenshot-placeholder .small-text {
    color: var(--gray);
    font-size: 0.875rem;
}

.api-demo {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.api-demo h3 {
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.api-demo > p {
    text-align: center;
    color: var(--gray);
    margin-bottom: var(--spacing-lg);
}

/* ========================================
   Code Blocks
   ======================================== */

.code-block {
    background: var(--dark);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.code-header {
    background: var(--dark-light);
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--white);
    font-weight: 600;
}

.copy-btn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.875rem;
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.code-block pre {
    padding: var(--spacing-md);
    overflow-x: auto;
    margin: 0;
}

.code-block code {
    background: transparent;
    color: #e2e8f0;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
}

/* ========================================
   Getting Started Section
   ======================================== */

.getting-started {
    background: var(--white);
}

.steps-container {
    max-width: 900px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.step:not(:last-child)::after {
    content: "";
    position: absolute;
    left: 29px;
    top: 60px;
    width: 2px;
    height: calc(100% - 40px);
    background: linear-gradient(
        180deg,
        var(--primary-color) 0%,
        var(--secondary-color) 100%
    );
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: var(--shadow-lg);
}

.step-content {
    flex: 1;
    background: var(--light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
}

.step-content h3 {
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.step-content ul {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.step-content ul li {
    margin-bottom: var(--spacing-xs);
    color: var(--dark-light);
}

.info-box,
.success-box {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
}

.info-box {
    background: #dbeafe;
    color: #1e40af;
}

.success-box {
    background: #d1fae5;
    color: #065f46;
}

.info-box i,
.success-box i {
    flex-shrink: 0;
}

.endpoints-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.endpoint-card {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    text-align: center;
    text-decoration: none;
    color: var(--dark);
    border: 2px solid #e2e8f0;
    transition: var(--transition);
}

.endpoint-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.endpoint-card i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.endpoint-card h4 {
    margin-bottom: var(--spacing-xs);
    font-size: 1rem;
}

.endpoint-card p {
    color: var(--gray);
    font-size: 0.875rem;
    font-family: var(--font-mono);
}

.quick-links {
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background: var(--light);
    border-radius: var(--radius-xl);
}

.quick-links h3 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.link-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    text-decoration: none;
    color: var(--dark);
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.link-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.link-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.link-card h4 {
    margin-bottom: var(--spacing-xs);
}

.link-card p {
    color: var(--gray);
    font-size: 0.875rem;
}

/* ========================================
   Technology Stack Detail
   ======================================== */

.tech-stack-detail {
    background: var(--white);
}

.tech-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.tech-category-card {
    background: var(--light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    border: 2px solid transparent;
    transition: var(--transition);
}

.tech-category-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.tech-category-card h3 {
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.tech-category-card ul {
    list-style: none;
}

.tech-category-card ul li {
    padding: var(--spacing-xs) 0;
    color: var(--dark-light);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.tech-category-card ul li::before {
    content: "▸";
    color: var(--primary-color);
}

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

.footer {
    background: var(--dark);
    color: var(--white);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

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

.footer-section h4 {
    margin-bottom: var(--spacing-md);
    color: var(--white);
}

.footer-section p {
    color: var(--gray-light);
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-section ul li a {
    color: var(--gray-light);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--white);
    padding-left: var(--spacing-xs);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--dark-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid var(--dark-light);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: var(--gray-light);
}

.footer-bottom p {
    margin-bottom: var(--spacing-xs);
}

.footer-bottom i {
    color: var(--danger-color);
}

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

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

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-lg);
        padding: var(--spacing-lg) 0;
    }

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

    .hamburger {
        display: flex;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .step {
        flex-direction: column;
    }

    .step:not(:last-child)::after {
        left: 29px;
        top: 60px;
        height: 2px;
        width: calc(100% - 60px);
    }

    .features-grid,
    .services-grid,
    .patterns-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }
}

/* ========================================
   Utility Classes
   ======================================== */

.text-center {
    text-align: center;
}
.text-primary {
    color: var(--primary-color);
}
.text-gray {
    color: var(--gray);
}
.mt-1 {
    margin-top: var(--spacing-sm);
}
.mb-1 {
    margin-bottom: var(--spacing-sm);
}
.mt-2 {
    margin-top: var(--spacing-md);
}
.mb-2 {
    margin-bottom: var(--spacing-md);
}