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

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --text-color: #333;
    --text-light: #666;
    --bg-color: #ffffff;
    --bg-light: #f8f9fa;
    --border-color: #e1e8ed;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--bg-color);
}

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

/* Header */
header {
    background-color: var(--bg-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 700;
}

.logo a {
    text-decoration: none;
}

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

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

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

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

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    opacity: 0.95;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.8;
}

.cta-buttons {
    margin-top: 2rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.app-store-badge {
    display: inline-block;
}

/* Sections */
section {
    padding: 4rem 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-color);
    font-weight: 700;
}

/* Features Grid */
.features {
    background-color: var(--bg-light);
}

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

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
    text-align: center;
}

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

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

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

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

/* Target Users */
.users-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.user-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--secondary-color);
    transition: transform 0.3s;
}

.user-card:hover {
    transform: translateX(5px);
}

.user-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.user-card p {
    color: var(--text-light);
}

/* How It Works */
.how-it-works {
    background-color: var(--bg-light);
}

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

.step {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    position: relative;
}

.step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    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: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.step p {
    color: var(--text-light);
    line-height: 1.7;
}

/* Privacy Highlight */
.privacy-highlight {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

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

.privacy-statement {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.privacy-highlight p {
    font-size: 1.1rem;
    opacity: 0.95;
    line-height: 1.8;
}

.privacy-highlight a {
    color: white;
    text-decoration: underline;
    font-weight: 600;
}

/* Download Section */
.download {
    background-color: var(--bg-light);
    text-align: center;
}

.download-description {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

/* Privacy Policy Page */
.privacy-policy {
    padding: 4rem 0;
    background-color: var(--bg-light);
    min-height: calc(100vh - 200px);
}

.privacy-policy h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.last-updated {
    color: var(--text-light);
    font-style: italic;
    margin-bottom: 3rem;
}

.policy-content {
    background: white;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    max-width: 900px;
    margin: 0 auto;
}

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

.policy-section:last-child {
    margin-bottom: 0;
}

.policy-section h2 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    margin-top: 2rem;
}

.policy-section h2:first-child {
    margin-top: 0;
}

.policy-section h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

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

.policy-section ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
    line-height: 1.8;
}

.policy-section ul ul {
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
}

.policy-section li {
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

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

.policy-section a {
    color: var(--secondary-color);
    text-decoration: none;
}

.policy-section a:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: white;
    padding: 3rem 0 1rem;
}

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

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
}

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

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

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        gap: 1rem;
        font-size: 0.9rem;
    }

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

    .hero-subtitle {
        font-size: 1.2rem;
    }

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

    .features-grid,
    .users-grid,
    .process-steps {
        grid-template-columns: 1fr;
    }

    .policy-content {
        padding: 2rem 1.5rem;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    nav {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero {
        padding: 2rem 0;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    section {
        padding: 2rem 0;
    }

    .container {
        padding: 0 15px;
    }
}