@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Prompt:wght@300;400;500;600;700&display=swap');

/* CSS Variables for Themes */
:root {
    /* Dark Theme Default */
    --bg-primary: #08090d;
    --bg-secondary: #11131c;
    --bg-tertiary: #191c29;
    
    --accent-cyan: #00f2fe;
    --accent-purple: #7000ff;
    --accent-pink: #f35588;
    --accent-glow: rgba(0, 242, 254, 0.3);
    --accent-purple-glow: rgba(112, 0, 255, 0.2);
    
    --text-primary: #f3f4f6;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    
    --border-color: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(0, 242, 254, 0.3);
    
    --glass-bg: rgba(17, 19, 28, 0.7);
    --glass-border: rgba(255, 255, 255, 0.05);
    --shadow-color: rgba(0, 0, 0, 0.4);
    --card-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    
    --font-sans: 'Inter', 'Prompt', sans-serif;
    --transition-speed: 0.3s;
}

[data-theme="light"] {
    /* Light Theme */
    --bg-primary: #f4f6f9;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f0f2f5;
    
    --accent-cyan: #0284c7;
    --accent-purple: #4f46e5;
    --accent-pink: #db2777;
    --accent-glow: rgba(2, 132, 199, 0.15);
    --accent-purple-glow: rgba(79, 70, 229, 0.1);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --border-color: rgba(0, 0, 0, 0.08);
    --border-hover: rgba(2, 132, 199, 0.3);
    
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(0, 0, 0, 0.06);
    --shadow-color: rgba(0, 0, 0, 0.05);
    --card-shadow: 0 8px 24px 0 rgba(0, 0, 0, 0.06);
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header & Navigation */
header {
    background-color: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 20px;
    color: var(--text-primary);
    text-decoration: none;
}

.logo svg {
    fill: var(--accent-cyan);
    filter: drop-shadow(0 0 6px var(--accent-cyan));
    transition: filter var(--transition-speed);
}

.logo span {
    background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Theme Toggle Button */
.theme-toggle {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 44px;
    height: 44px;
    border-radius: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-speed);
}

.theme-toggle:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 10px var(--accent-glow);
    transform: translateY(-2px);
}

.theme-toggle .sun-icon {
    display: none;
}

[data-theme="light"] .theme-toggle .moon-icon {
    display: none;
}

[data-theme="light"] .theme-toggle .sun-icon {
    display: block;
}

/* Hero Section */
.hero {
    position: relative;
    padding: 80px 0 60px 0;
    text-align: center;
    overflow: hidden;
}

/* Glow Background Circles */
.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 400px;
    background: radial-gradient(circle, var(--accent-purple-glow) 0%, transparent 70%);
    z-index: -1;
    pointer-events: none;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #ffffff 30%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

[data-theme="light"] .hero h1 {
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 650px;
    margin: 0 auto 32px auto;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-purple) 100%);
    color: #ffffff;
    border: none;
    box-shadow: 0 4px 15px rgba(0, 242, 254, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 242, 254, 0.4);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent-cyan);
    transform: translateY(-2px);
}

/* Terminology Box */
.terminology-section {
    padding: 40px 0;
}

.terminology-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 32px;
    box-shadow: var(--card-shadow);
    transition: all var(--transition-speed);
}

.terminology-card:hover {
    border-color: rgba(112, 0, 255, 0.4);
    box-shadow: 0 8px 32px var(--accent-purple-glow);
}

.terminology-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.terminology-header h2 {
    font-size: 24px;
    font-weight: 700;
}

.terminology-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

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

.term-block {
    background: var(--bg-tertiary);
    border-radius: 12px;
    padding: 20px;
    border-left: 4px solid var(--accent-cyan);
}

.term-block.purple {
    border-left-color: var(--accent-purple);
}

.term-block h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.term-block p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Components Section */
.section-title {
    font-size: 32px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}

.section-title span {
    background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.components-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-bottom: 60px;
}

.component-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: all var(--transition-speed);
    box-shadow: var(--card-shadow);
    cursor: pointer;
}

.component-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-cyan);
    box-shadow: 0 10px 30px var(--accent-glow);
}

.component-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--accent-cyan);
    font-weight: bold;
    font-size: 20px;
}

.component-card.app-card .component-icon {
    color: var(--accent-cyan);
}
.component-card.cli-card .component-icon {
    color: var(--accent-pink);
}
.component-card.sdk-card .component-icon {
    color: var(--accent-purple);
}
.component-card.ide-card .component-icon {
    color: #eab308;
}

.component-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.component-card p {
    font-size: 14px;
    color: var(--text-secondary);
    flex-grow: 1;
    margin-bottom: 16px;
}

.component-card .badge {
    align-self: flex-start;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* Comparison Matrix Section */
.comparison-section {
    padding: 60px 0;
}

.search-filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    gap: 16px;
    flex-wrap: wrap;
}

.search-box {
    position: relative;
    flex-grow: 1;
    max-width: 400px;
}

.search-box input {
    width: 100%;
    padding: 12px 16px 12px 40px;
    border-radius: 12px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    outline: none;
    transition: all var(--transition-speed);
}

.search-box input:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 10px var(--accent-glow);
}

.search-box svg {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.filter-btn-group {
    display: flex;
    gap: 8px;
}

.filter-btn {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 10px 18px;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 500;
    font-size: 14px;
    transition: all var(--transition-speed);
}

.filter-btn:hover, .filter-btn.active {
    background-color: var(--bg-tertiary);
    color: var(--accent-cyan);
    border-color: var(--accent-cyan);
}

/* Table Design */
.table-responsive {
    overflow-x: auto;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
}

table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--bg-secondary);
    text-align: left;
    min-width: 700px;
}

th, td {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border-color);
}

th {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    font-weight: 600;
}

tr:last-child td {
    border-bottom: none;
}

td h4 {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

td p {
    font-size: 13px;
    color: var(--text-secondary);
}

.feature-tag {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
}

.tag-app { background: rgba(0, 242, 254, 0.1); color: var(--accent-cyan); }
.tag-cli { background: rgba(243, 85, 136, 0.1); color: var(--accent-pink); }
.tag-sdk { background: rgba(112, 0, 255, 0.1); color: var(--accent-purple); }
.tag-ide { background: rgba(234, 179, 8, 0.1); color: #eab308; }

/* Interactive Simulator Section */
.simulator-section {
    padding: 60px 0;
}

.simulator-container {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    display: grid;
    grid-template-columns: 300px 1fr;
    height: 520px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

@media (max-width: 900px) {
    .simulator-container {
        grid-template-columns: 1fr;
        height: auto;
    }
}

.simulator-sidebar {
    background-color: var(--bg-tertiary);
    border-right: 1px solid var(--border-color);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

@media (max-width: 900px) {
    .simulator-sidebar {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
}

.sim-nav-btn {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    text-align: left;
    padding: 12px 16px;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all var(--transition-speed);
}

.sim-nav-btn:hover {
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-primary);
}

.sim-nav-btn.active {
    background: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.sim-nav-btn.active.color-app { border-left: 4px solid var(--accent-cyan); }
.sim-nav-btn.active.color-cli { border-left: 4px solid var(--accent-pink); }
.sim-nav-btn.active.color-sdk { border-left: 4px solid var(--accent-purple); }
.sim-nav-btn.active.color-ide { border-left: 4px solid #eab308; }

.simulator-workspace {
    padding: 32px;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.sim-content {
    display: none;
    flex-direction: column;
    height: 100%;
}

.sim-content.active {
    display: flex;
}

.sim-content h3 {
    font-size: 22px;
    margin-bottom: 12px;
}

.sim-content p.desc {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 24px;
}

/* Simulator Terminal / Code Window */
.sim-window {
    background-color: #050508;
    border: 1px solid #1a1a24;
    border-radius: 12px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    font-family: 'Courier New', Courier, monospace;
}

.sim-window-header {
    background-color: #0c0d14;
    padding: 10px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid #1a1a24;
}

.sim-window-dots {
    display: flex;
    gap: 6px;
}

.sim-window-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #ff5f56;
}
.sim-window-dot:nth-child(2) { background-color: #ffbd2e; }
.sim-window-dot:nth-child(3) { background-color: #27c93f; }

.sim-window-title {
    color: var(--text-muted);
    font-size: 12px;
}

.sim-window-body {
    padding: 20px;
    overflow-y: auto;
    font-size: 13px;
    color: #a5b4fc;
    flex-grow: 1;
    line-height: 1.5;
}

.sim-window-body pre {
    white-space: pre-wrap;
    word-break: break-all;
}

.sim-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 20px;
}

/* Examples Section */
.examples-section {
    padding: 60px 0;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.examples-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.example-tab-btn {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 10px 20px;
    border-radius: 30px;
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition-speed);
}

.example-tab-btn:hover, .example-tab-btn.active {
    border-color: var(--accent-cyan);
    color: var(--text-primary);
    box-shadow: 0 4px 12px var(--accent-glow);
}

.example-tab-btn.active {
    background: var(--bg-tertiary);
}

.example-content {
    display: none;
}

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

.examples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.example-card {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    transition: all var(--transition-speed);
}

.example-card:hover {
    border-color: var(--accent-cyan);
    transform: translateY(-2px);
}

.example-number {
    font-size: 11px;
    font-weight: 700;
    color: var(--accent-cyan);
    text-transform: uppercase;
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.example-card h4 {
    font-size: 18px;
    margin-bottom: 12px;
}

.example-card p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Getting Started / Setup Guide */
.setup-section {
    padding: 60px 0;
}

.setup-tabs {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

.setup-tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 8px 16px;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    transition: all var(--transition-speed);
}

.setup-tab-btn:hover {
    color: var(--text-primary);
}

.setup-tab-btn.active {
    color: var(--accent-cyan);
}

.setup-tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -13px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--accent-cyan);
}

.setup-content {
    display: none;
}

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

.setup-steps {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.step-item {
    display: flex;
    gap: 16px;
}

.step-number {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--accent-purple-glow);
    border: 1px solid var(--accent-purple);
    color: var(--accent-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
}

.step-details h4 {
    margin-bottom: 6px;
    font-size: 16px;
}

.step-details p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.code-snippet {
    background-color: #050508;
    border: 1px solid #1a1a24;
    border-radius: 8px;
    padding: 12px 16px;
    font-family: monospace;
    font-size: 13px;
    color: #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
}

.copy-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    transition: color var(--transition-speed);
}

.copy-btn:hover {
    color: var(--accent-cyan);
}

/* Download Section / Footer */
.download-section {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    padding: 60px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 32px 0;
}

.download-badge {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 20px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all var(--transition-speed);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.download-badge:hover {
    border-color: var(--accent-cyan);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px var(--accent-glow);
}

.download-badge svg {
    color: var(--accent-cyan);
}

.download-badge span.title {
    font-weight: 600;
}

.download-badge span.desc {
    font-size: 12px;
    color: var(--text-secondary);
}

footer {
    padding: 40px 0;
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 14px;
    color: var(--text-muted);
}