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

:root {
    --primary-color: #00d4ff;
    --primary-dark: #00a8cc;
    --secondary-color: #7c4dff;
    --background: #0a0e27;
    --surface: #151b3d;
    --surface-light: #1e2749;
    --text-primary: #ffffff;
    --text-secondary: #b0b8d4;
    --gradient-1: linear-gradient(135deg, #00d4ff 0%, #7c4dff 100%);
    --gradient-2: linear-gradient(135deg, #7c4dff 0%, #ff4081 100%);
    --shadow: 0 4px 20px rgba(0, 212, 255, 0.15);
    --shadow-hover: 0 8px 30px rgba(0, 212, 255, 0.25);
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Hero Section */
.hero {
    padding: 6rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 2rem;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
}

.badge {
    background: var(--surface);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-primary {
    background: var(--gradient-1);
    color: var(--text-primary);
    box-shadow: var(--shadow);
}

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

.btn-secondary {
    background: var(--surface);
    color: var(--text-primary);
    border: 1px solid rgba(0, 212, 255, 0.3);
}

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

/* Features Section */
.features {
    padding: 6rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

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

.feature-card {
    background: var(--surface);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid rgba(0, 212, 255, 0.1);
    transition: all 0.3s;
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

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

/* Privacy Highlight Section */
.privacy-highlight {
    padding: 6rem 0;
    background: var(--surface);
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

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

.privacy-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.privacy-content > p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.privacy-list {
    list-style: none;
    text-align: left;
    max-width: 500px;
    margin: 0 auto 2rem;
}

.privacy-list li {
    padding: 0.5rem 0;
    font-size: 1.1rem;
}

/* Download Section */
.download {
    padding: 6rem 0;
    text-align: center;
}

.download-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Privacy Page */
.privacy-page {
    padding: 2rem 0 4rem;
}

.privacy-header {
    text-align: center;
    padding: 3rem 0;
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.privacy-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.last-updated {
    color: var(--text-secondary);
    font-size: 1rem;
}

.privacy-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 3rem 0;
}

.privacy-section {
    margin-bottom: 3rem;
}

.privacy-section h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.privacy-section h3 {
    font-size: 1.5rem;
    margin: 2rem 0 1rem;
}

.privacy-section h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

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

.privacy-section ul {
    margin: 1rem 0 1rem 2rem;
    color: var(--text-secondary);
}

.privacy-section li {
    margin-bottom: 0.75rem;
    line-height: 1.8;
}

.highlight-box {
    background: var(--surface);
    border-left: 4px solid var(--primary-color);
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-radius: 8px;
}

.no-collect-list {
    list-style: none;
    margin-left: 0;
}

.no-collect-list li {
    padding-left: 0;
}

.permissions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.permission-card {
    background: var(--surface);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid rgba(0, 212, 255, 0.1);
}

.permission-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.permission-card h4 {
    font-size: 0.9rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.permission-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.link-button {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.75rem 1.5rem;
    background: var(--gradient-1);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s;
}

.link-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.summary-section {
    background: var(--surface);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.summary-item {
    background: var(--background);
    padding: 1rem;
    border-radius: 8px;
    font-weight: 500;
}

.summary-tagline {
    text-align: center;
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-top: 2rem;
}

/* Footer */
.footer {
    background: var(--surface);
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    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 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.footer-section p {
    color: var(--text-secondary);
}

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

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

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

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .nav-links {
        gap: 1rem;
    }

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

    .privacy-header h1 {
        font-size: 2rem;
    }

    .privacy-section h2 {
        font-size: 1.5rem;
    }

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

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

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

@media (max-width: 480px) {
    .hero {
        padding: 3rem 0;
    }

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

    .nav-links {
        font-size: 0.9rem;
        gap: 0.5rem;
    }

    .logo-text {
        display: none;
    }
}