/* ============================================
   CHANIT Website - Modern Dark Theme
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --primary: #00d4ff;
    --primary-dark: #0095b8;
    --primary-light: #4df2ff;
    --secondary: #1e293b;
    --secondary-light: #334155;
    --accent: #f472b6;
    --accent-light: #fb7185;
    --background: #0f172a;
    --surface: #1e293b;
    --surface-alt: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    
    /* Transitions */
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
    --transition-slow: all 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.5);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
}

/* ============================================
   Global Styles
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

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

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

a:hover {
    color: var(--primary-light);
}

code {
    font-family: var(--font-mono);
    background-color: var(--surface-alt);
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.9em;
}

pre {
    background-color: var(--surface-alt);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    overflow-x: auto;
    margin: var(--spacing-lg) 0;
}

pre code {
    background: transparent;
    padding: 0;
    color: var(--text-secondary);
}

/* ============================================
   Container
   ============================================ */

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

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

.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
    z-index: 1000;
    padding: var(--spacing-lg) 0;
    box-shadow: var(--shadow);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary);
}

.logo-icon {
    font-size: var(--font-size-2xl);
    animation: spin 3s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-2xl);
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-link-highlight {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    color: var(--background) !important;
}

.nav-link-highlight::after {
    display: none;
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav-links {
        gap: var(--spacing-lg);
    }
    
    .nav-links a {
        font-size: var(--font-size-sm);
    }
}

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

.hero {
    padding-top: 100px;
    padding-bottom: var(--spacing-3xl);
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(
        circle at 50% 50%,
        rgba(0, 212, 255, 0.1) 0%,
        transparent 50%
    );
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    animation: slideInLeft 0.8s ease;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--primary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-2xl);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--primary);
}

.badge-icon {
    font-size: var(--font-size-lg);
}

.hero-title {
    font-size: clamp(2rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.8;
}

/* Hero Buttons */
.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn-icon {
    font-size: var(--font-size-lg);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--background);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 50px rgba(0, 212, 255, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: translateY(-2px);
}

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

/* Hero Stats */
.hero-stats {
    display: flex;
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.stat-icon {
    font-size: 2rem;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 600;
}

/* Hero Visual */
.hero-visual {
    animation: slideInRight 0.8s ease;
}

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

.chat-window {
    background: linear-gradient(135deg, var(--surface) 0%, rgba(30, 41, 59, 0.8) 100%);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 0 60px rgba(0, 212, 255, 0.15);
    display: flex;
    flex-direction: column;
    height: 500px;
}

.window-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.window-title {
    font-weight: 700;
    color: var(--primary);
}

.window-controls {
    display: flex;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

.window-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: var(--spacing-lg);
    overflow: hidden;
}

.message-container {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.message {
    display: flex;
    animation: fadeInUp 0.4s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.user {
    justify-content: flex-end;
}

.message.assistant {
    justify-content: flex-start;
}

.message-content {
    max-width: 70%;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.message.assistant .message-content {
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.2);
    color: var(--text-secondary);
}

.message.user .message-content {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--background);
}

.input-area {
    display: flex;
    gap: var(--spacing-md);
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(0, 212, 255, 0.1);
}

.input-area input {
    flex: 1;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(0, 212, 255, 0.2);
    color: var(--text-primary);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius);
    font-family: var(--font-primary);
    transition: var(--transition);
}

.input-area input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.2);
}

.input-area button {
    background: var(--primary);
    color: var(--background);
    border: none;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

.input-area button:hover {
    background: var(--primary-light);
}

/* Responsive Hero */
@media (max-width: 968px) {
    .hero-container {
        grid-template-columns: 1fr;
    }
    
    .hero-visual {
        display: none;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}

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

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: var(--font-size-lg);
    color: var(--text-tertiary);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   What is CHANIT Section
   ============================================ */

.what-is {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(180deg, 
        rgba(0, 212, 255, 0.05) 0%,
        transparent 50%,
        rgba(244, 114, 182, 0.05) 100%
    );
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    border-bottom: 1px solid rgba(244, 114, 182, 0.1);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
}

.feature-card {
    background: linear-gradient(135deg, var(--surface) 0%, rgba(51, 65, 85, 0.5) 100%);
    border: 1px solid rgba(0, 212, 255, 0.1);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.feature-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.2);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
}

.feature-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-tertiary);
    line-height: 1.7;
}

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

.features {
    padding: var(--spacing-3xl) 0;
}

.features-detailed {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3xl);
}

.feature-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.feature-row.reverse {
    grid-template-columns: 1fr 1fr;
    direction: rtl;
}

.feature-row.reverse > * {
    direction: ltr;
}

.feature-text h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.feature-text p {
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.feature-text ul {
    list-style: none;
}

.feature-text li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
    position: relative;
}

.feature-text li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

.provider-list,
.encryption-features,
.storage-features {
    list-style: none;
}

.provider-list li,
.encryption-features li,
.storage-features li {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

/* Feature Visual */
.feature-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.provider-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-lg);
}

.provider-badge {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(244, 114, 182, 0.2));
    border: 2px solid var(--primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    font-weight: 600;
    color: var(--primary);
    transition: var(--transition);
}

.provider-badge:hover {
    transform: scale(1.05);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.encryption-diagram,
.storage-diagram {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: center;
}

.flow-item {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--background);
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    min-width: 200px;
    text-align: center;
}

.flow-item.encrypted {
    background: linear-gradient(135deg, #10b981, #059669);
}

.flow-arrow {
    color: var(--primary);
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.storage-item {
    background: var(--surface-alt);
    border: 2px dashed var(--primary);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    text-align: center;
    font-weight: 600;
    width: 250px;
}

.storage-content {
    margin-top: var(--spacing-lg);
    background: rgba(0, 212, 255, 0.1);
    padding: var(--spacing-lg);
    border-radius: var(--radius);
    color: var(--primary);
    font-family: var(--font-mono);
}

/* Responsive Features */
@media (max-width: 768px) {
    .feature-row,
    .feature-row.reverse {
        grid-template-columns: 1fr;
        direction: ltr;
    }
    
    .feature-row.reverse > * {
        direction: ltr;
    }
}

/* ============================================
   How It Works Section
   ============================================ */

.how-it-works {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(180deg,
        transparent 0%,
        rgba(0, 212, 255, 0.05) 50%,
        transparent 100%
    );
}

.workflow-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3xl);
}

.workflow-diagram {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3xl);
}

.workflow-section {
    background: linear-gradient(135deg, var(--surface) 0%, rgba(51, 65, 85, 0.5) 100%);
    border: 1px solid rgba(0, 212, 255, 0.1);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
}

.workflow-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-xl);
}

.flow-diagram {
    display: flex;
    gap: var(--spacing-xl);
    overflow-x: auto;
    padding-bottom: var(--spacing-lg);
    align-items: center;
    flex-wrap: wrap;
}

.flow-box {
    background: linear-gradient(135deg, var(--surface-alt) 0%, rgba(30, 41, 59, 0.8) 100%);
    border: 2px solid rgba(0, 212, 255, 0.2);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    min-width: 150px;
    text-align: center;
    transition: var(--transition);
}

.flow-box:hover {
    border-color: var(--primary);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
    transform: translateY(-2px);
}

.flow-box.user-input {
    border-color: #3b82f6;
}

.flow-box.local-processing {
    border-color: #8b5cf6;
}

.flow-box.api-call {
    border-color: var(--primary);
}

.flow-box.response {
    border-color: #10b981;
}

.flow-box.display {
    border-color: var(--accent);
}

.flow-box.mode-default {
    border: 2px solid var(--primary);
}

.flow-box.mode-backup {
    border: 2px solid var(--accent);
}

.flow-label {
    font-weight: 700;
    color: var(--primary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
}

.flow-desc {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
}

.flow-arrow-v {
    color: var(--primary);
    font-size: var(--font-size-xl);
    margin: var(--spacing-lg) 0;
}

.workflow-note {
    background: rgba(0, 212, 255, 0.1);
    border-left: 4px solid var(--primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius);
    color: var(--text-secondary);
    margin-top: var(--spacing-lg);
}

.architecture-info {
    background: var(--surface);
    border: 1px solid rgba(0, 212, 255, 0.1);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
}

.architecture-info h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--primary);
}

.architecture-code {
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--radius);
    overflow-x: auto;
}

.architecture-code pre {
    margin: 0;
}

/* ============================================
   API Information Section
   ============================================ */

.api-info {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(180deg,
        rgba(244, 114, 182, 0.05) 0%,
        transparent 50%,
        rgba(0, 212, 255, 0.05) 100%
    );
    border-top: 1px solid rgba(244, 114, 182, 0.1);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.api-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.api-card {
    background: linear-gradient(135deg, var(--surface) 0%, rgba(51, 65, 85, 0.5) 100%);
    border: 1px solid rgba(0, 212, 255, 0.1);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    transition: var(--transition);
}

.api-card.highlight {
    border: 2px solid var(--accent);
    background: linear-gradient(135deg, 
        rgba(244, 114, 182, 0.1) 0%, 
        rgba(51, 65, 85, 0.5) 100%
    );
}

.api-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.2);
}

.api-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
    display: block;
}

.api-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.api-card p {
    color: var(--text-tertiary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.api-card ol,
.api-card ul {
    margin-left: var(--spacing-lg);
    color: var(--text-secondary);
}

.api-card li {
    margin-bottom: var(--spacing-sm);
}

.api-flow {
    background: var(--surface);
    border: 1px solid rgba(0, 212, 255, 0.1);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-2xl);
}

.api-flow h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    color: var(--primary);
}

.flow-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
}

.flow-column h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.flow-box {
    background: linear-gradient(135deg, var(--surface-alt) 0%, rgba(30, 41, 59, 0.8) 100%);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.flow-box.mode-default {
    border: 2px solid var(--primary);
}

.flow-box.mode-backup {
    border: 2px solid var(--accent);
}

.highlight-flow {
    background: var(--primary);
    color: var(--background);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.api-requirements {
    background: var(--surface);
    border: 1px solid rgba(0, 212, 255, 0.1);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
}

.api-requirements h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    color: var(--primary);
}

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

.requirement-item {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
}

.req-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.requirement-item strong {
    color: var(--primary);
}

.requirement-item div {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

/* Responsive API Info */
@media (max-width: 768px) {
    .flow-comparison {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Platforms Section
   ============================================ */

.platforms {
    padding: var(--spacing-3xl) 0;
}

.platforms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.platform-card {
    background: linear-gradient(135deg, var(--surface) 0%, rgba(51, 65, 85, 0.5) 100%);
    border: 1px solid rgba(0, 212, 255, 0.1);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    transition: var(--transition);
}

.platform-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.2);
}

.platform-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
}

.platform-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.platform-details h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.platform-details ul,
.platform-details ol {
    margin-left: var(--spacing-lg);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.platform-details li {
    margin-bottom: var(--spacing-sm);
}

.platform-details code {
    background: rgba(0, 212, 255, 0.1);
    color: var(--primary);
    padding: 0.3rem 0.6rem;
}

.install-section {
    background: var(--surface);
    border: 1px solid rgba(0, 212, 255, 0.1);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
}

.install-section h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    color: var(--primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.tab-content h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.tab-content p {
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-lg);
}

.release-link {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--primary);
    color: var(--background);
    border-radius: var(--radius-lg);
    font-weight: 600;
    transition: var(--transition);
    margin-bottom: var(--spacing-lg);
}

.release-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.3);
}

.release-note {
    background: rgba(0, 212, 255, 0.1);
    border-left: 4px solid var(--primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* Responsive Platforms */
@media (max-width: 968px) {
    .platforms-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Tech Stack Section
   ============================================ */

.tech-stack {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(180deg,
        rgba(0, 212, 255, 0.05) 0%,
        transparent 50%,
        rgba(244, 114, 182, 0.05) 100%
    );
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    border-bottom: 1px solid rgba(244, 114, 182, 0.1);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-2xl);
}

.tech-card {
    background: linear-gradient(135deg, var(--surface) 0%, rgba(51, 65, 85, 0.5) 100%);
    border: 1px solid rgba(0, 212, 255, 0.1);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    transition: var(--transition);
}

.tech-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.2);
}

.tech-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--primary);
}

.tech-list {
    list-style: none;
}

.tech-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.tech-list li:last-child {
    border-bottom: none;
}

.tech-name {
    font-weight: 600;
    color: var(--text-primary);
}

.tech-desc {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
}

/* ============================================
   Get Started Section
   ============================================ */

.get-started {
    padding: var(--spacing-3xl) 0;
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.step {
    background: linear-gradient(135deg, var(--surface) 0%, rgba(51, 65, 85, 0.5) 100%);
    border: 1px solid rgba(0, 212, 255, 0.1);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    transition: var(--transition);
    position: relative;
}

.step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.step:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.2);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--background);
    border-radius: 50%;
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.step h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.step p {
    color: var(--text-tertiary);
    font-size: var(--font-size-sm);
    line-height: 1.7;
}

.cta-section {
    text-align: center;
    padding: var(--spacing-2xl);
    background: linear-gradient(135deg,
        rgba(0, 212, 255, 0.1) 0%,
        rgba(244, 114, 182, 0.1) 100%
    );
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: var(--radius-xl);
}

/* ============================================
   GitHub Section
   ============================================ */

.github-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(180deg,
        transparent 0%,
        rgba(0, 212, 255, 0.05) 50%,
        transparent 100%
    );
}

.github-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
}

.github-info {
    background: linear-gradient(135deg, var(--surface) 0%, rgba(51, 65, 85, 0.5) 100%);
    border: 1px solid rgba(0, 212, 255, 0.1);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
}

.github-info h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--primary);
}

.github-details {
    background: var(--surface-alt);
    padding: var(--spacing-lg);
    border-radius: var(--radius);
    margin: var(--spacing-lg) 0;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.detail-item:last-child {
    border-bottom: none;
}

.detail-label {
    font-weight: 600;
    color: var(--text-secondary);
}

.detail-value {
    color: var(--primary);
    font-weight: 600;
}

.detail-value a {
    color: var(--primary);
    text-decoration: underline;
}

.contribution-steps {
    list-style: decimal;
    margin-left: var(--spacing-xl);
    color: var(--text-secondary);
}

.contribution-steps li {
    margin-bottom: var(--spacing-md);
}

.roadmap {
    background: linear-gradient(135deg, var(--surface) 0%, rgba(51, 65, 85, 0.5) 100%);
    border: 1px solid rgba(0, 212, 255, 0.1);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
}

.roadmap h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    color: var(--primary);
}

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

.roadmap-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius);
    color: var(--text-secondary);
    transition: var(--transition);
}

.roadmap-item:hover {
    background: rgba(0, 212, 255, 0.1);
    color: var(--text-primary);
}

.roadmap-status {
    font-size: var(--font-size-lg);
}

.roadmap-item.completed {
    color: var(--success);
}

/* Responsive GitHub */
@media (max-width: 968px) {
    .github-content {
        grid-template-columns: 1fr;
    }
}

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

.footer {
    background: linear-gradient(180deg,
        rgba(30, 41, 59, 0.8) 0%,
        rgba(15, 23, 42, 0.95) 100%
    );
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    color: var(--text-secondary);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.footer-section h4 {
    color: var(--primary);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-base);
}

.footer-section p {
    font-size: var(--font-size-sm);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

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

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

.footer-section a {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--primary);
}

.social-links {
    display: flex;
    gap: var(--spacing-lg);
    font-size: var(--font-size-xl);
}

.social-links a {
    color: var(--text-secondary);
    transition: var(--transition);
}

.social-links a:hover {
    color: var(--primary);
    transform: scale(1.2);
}

.footer-bottom {
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

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

.footer-note {
    color: var(--text-tertiary);
}

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

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .nav-links {
        display: none;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .feature-row {
        gap: var(--spacing-lg);
    }
    
    .flow-diagram {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .provider-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .steps-container {
        grid-template-columns: 1fr;
    }
    
    .btn-primary,
    .btn-secondary {
        font-size: var(--font-size-sm);
        padding: var(--spacing-sm) var(--spacing-lg);
    }
}

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

.highlight {
    color: var(--primary);
}

.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-md); }
.mt-2 { margin-top: var(--spacing-lg); }
.mt-3 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-md); }
.mb-2 { margin-bottom: var(--spacing-lg); }
.mb-3 { margin-bottom: var(--spacing-xl); }

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(15, 23, 42, 0.5);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-light);
}