/* Base Styles */
:root {
    --primary: #667eea;
    --primary-dark: #5a67d8;
    --secondary: #f093fb;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #f093fb 100%);
    --text-primary: #1a202c;
    --text-secondary: #718096;
    --bg-primary: #f7fafc;
    --bg-white: #ffffff;
    --shadow: 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);
    --radius: 12px;
    --radius-lg: 20px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

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

/* Navigation */
.navbar {
    background: var(--bg-white);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

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

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

.logo-icon {
    font-size: 28px;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.btn-large {
    padding: 18px 40px;
    font-size: 18px;
}

.play-icon {
    width: 24px;
    height: 24px;
}

/* Hero Section */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(180deg, var(--bg-white) 0%, var(--bg-primary) 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text h1 {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-buttons {
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Phone Mockup */
.hero-image {
    display: flex;
    justify-content: center;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: #1a202c;
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-xl);
    transform: rotate(5deg);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    border-radius: 32px;
    overflow: hidden;
}

.app-preview {
    padding: 20px;
}

.preview-header {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    margin-top: 30px;
}

.preview-card {
    height: 80px;
    background: var(--bg-white);
    border-radius: 16px;
    margin-bottom: 16px;
    box-shadow: var(--shadow);
}

/* Features Section */
.features {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--bg-white);
    padding: 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

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

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 15px;
}

/* Download Section */
.download-section {
    padding: 100px 0;
    background: var(--gradient-primary);
    text-align: center;
}

.download-content h2 {
    color: white;
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 16px;
}

.download-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 18px;
    margin-bottom: 32px;
}

.download-section .btn-primary {
    background: white;
    color: var(--primary);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.download-section .btn-primary:hover {
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.3);
}

.download-section .play-icon {
    fill: var(--primary);
}

/* Footer */
.footer {
    background: var(--text-primary);
    padding: 60px 0;
}

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

.footer-logo {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-bottom: 24px;
}

.footer .logo-icon {
    font-size: 24px;
}

.footer .logo-text {
    font-size: 18px;
    color: white;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-bottom: 24px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: white;
}

.copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

/* Privacy Policy Page */
.policy-page {
    padding: 120px 0 60px;
    min-height: calc(100vh - 200px);
}

.policy-page h1 {
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 8px;
}

.last-updated {
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.policy-section {
    background: var(--bg-white);
    padding: 32px;
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    box-shadow: var(--shadow);
}

.policy-section h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--primary);
}

.policy-section h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 20px 0 10px;
}

.policy-section p {
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.policy-section ul {
    color: var(--text-secondary);
    margin-left: 24px;
    margin-bottom: 12px;
}

.policy-section li {
    margin-bottom: 8px;
}

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

/* Responsive Design */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 40px;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-image {
        display: none;
    }

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

@media (max-width: 640px) {
    .nav-links {
        gap: 16px;
    }

    .hero-text h1 {
        font-size: 32px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }

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

    .section-title {
        font-size: 28px;
    }

    .download-content h2 {
        font-size: 28px;
    }

    .policy-page h1 {
        font-size: 28px;
    }
}