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

:root {
    /* Dark Mode Colors */
    --bg-primary: #0d0d0d;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #242424;
    --text-primary: #e8e8e8;
    --text-secondary: #a0a0a0;
    --text-muted: #707070;
    --accent-primary: #5e93ff;
    --accent-secondary: #4a7fd9;
    --accent-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --border-color: #2a2a2a;
    --success: #4ade80;
    --warning: #fbbf24;
    --danger: #f87171;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.6);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.navbar {
    background: rgba(13, 13, 13, 0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo a {
    text-decoration: none;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.95rem;
}

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

.btn-download {
    padding: 0.5rem 1rem;
    background: var(--accent-gradient);
    border-radius: 8px;
    color: white !important;
    font-weight: 500;
}

/* Hero Section */
.hero {
    padding: 6rem 0 4rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -25%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-content {
    max-width: 600px;
    margin-bottom: 3rem;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #ffffff 0%, #a0a0a0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.btn {
    padding: 0.875rem 1.75rem;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    font-size: 1rem;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: var(--shadow-md);
}

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

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

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--accent-primary);
}

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

.system-requirements {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* App Window Preview */
.hero-image {
    display: flex;
    justify-content: center;
    margin-top: 3rem;
}

.app-window {
    background: var(--bg-secondary);
    border-radius: 12px;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    border: 1px solid var(--border-color);
    max-width: 700px;
    width: 100%;
}

.window-controls {
    background: var(--bg-tertiary);
    padding: 0.75rem 1rem;
    display: flex;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.window-content {
    padding: 2rem;
}

.editor-preview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.editor-text {
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.line {
    display: block;
    margin-bottom: 0.5rem;
}

.cursor {
    color: var(--accent-primary);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.suggestions-panel {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.suggestion {
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-left: 3px solid;
}

.suggestion.high { border-left-color: var(--danger); }
.suggestion.medium { border-left-color: var(--warning); }
.suggestion.low { border-left-color: var(--success); }

.priority-badge {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.priority-badge.high {
    background: rgba(248, 113, 113, 0.2);
    color: var(--danger);
}

.priority-badge.medium {
    background: rgba(251, 191, 36, 0.2);
    color: var(--warning);
}

.priority-badge.low {
    background: rgba(74, 222, 128, 0.2);
    color: var(--success);
}

.suggestion-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Features Section */
.features {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-tertiary);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-primary);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* How It Works Section */
.how-it-works {
    padding: 6rem 0;
}

.how-it-works h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
}

.steps {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.step {
    flex: 1;
    min-width: 250px;
    max-width: 300px;
    text-align: center;
    padding: 2rem;
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--accent-gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1rem;
}

.step h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.step p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.step-arrow {
    font-size: 2rem;
    color: var(--accent-primary);
    font-weight: 300;
}

/* Download Section */
.download {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.download-card {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    padding: 3rem;
    background: var(--bg-tertiary);
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.download-card h2 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.download-card p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

.download-info {
    margin-top: 1rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-section p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Privacy Page Styles */
.privacy-page {
    padding: 4rem 0;
    min-height: calc(100vh - 200px);
}

.privacy-content {
    max-width: 800px;
    margin: 0 auto;
}

.privacy-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.last-updated {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 2rem;
}

.privacy-content section {
    margin-bottom: 2.5rem;
}

.privacy-content h2 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    margin-top: 2rem;
}

.privacy-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    margin-top: 1.5rem;
    color: var(--text-secondary);
}

.privacy-content p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.privacy-content ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.privacy-content ul li {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 0.5rem;
}

.privacy-content a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.privacy-content a:hover {
    color: var(--accent-secondary);
    text-decoration: underline;
}

.summary-box {
    background: var(--bg-secondary);
    border-left: 4px solid var(--accent-primary);
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 2rem;
}

.summary-box h3 {
    margin-top: 0;
    color: var(--text-primary);
}

.summary-box p {
    margin-bottom: 0;
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .editor-preview {
        grid-template-columns: 1fr;
    }

    .steps {
        flex-direction: column;
    }

    .step-arrow {
        transform: rotate(90deg);
    }

    .nav-links {
        gap: 1rem;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 0 1rem;
    }

    .hero {
        padding: 3rem 0 2rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        text-align: center;
    }

    .nav-links a:not(.btn-download) {
        display: none;
    }

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

    .features,
    .how-it-works,
    .download {
        padding: 3rem 0;
    }

    .download-card {
        padding: 2rem 1rem;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection */
::selection {
    background: var(--accent-primary);
    color: white;
}