:root {
    --primary: #195de6;
    --primary-dark: #0d3db8;
    --primary-light: #4a7ef0;
    --secondary: #64748b;
    --text: #0e121b;
    --text-light: #64748b;
    --text-muted: #94a3b8;
    --bg: #ffffff;
    --bg-alt: #f8fafc;
    --border: #e2e8f0;
    --success: #10b981;
    --gradient: linear-gradient(135deg, #195de6 0%, #4a7ef0 100%);
}

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

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

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

/* Navigation */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 100;
    padding: 16px 0;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
}

.nav-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

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

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

/* Hero Section */
.hero {
    padding: 80px 0 120px;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #dbeafe;
    color: var(--primary);
    padding: 8px 16px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
}

.badge-icon {
    font-size: 16px;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

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

.hero-description {
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 12px rgba(25, 93, 230, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(25, 93, 230, 0.4);
}

.btn-secondary {
    background: white;
    color: var(--text);
    border: 2px solid var(--border);
}

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

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-outline:hover {
    background: white;
    color: var(--primary);
}

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

.phone-mockup {
    width: 300px;
    height: 600px;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    position: relative;
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 24px;
    background: #1e293b;
    border-radius: 0 0 20px 20px;
    z-index: 10;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 32px;
    overflow: hidden;
}

.screen-content {
    padding: 60px 24px 24px;
}

.list-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: #f8fafc;
    border-radius: 12px;
    margin-bottom: 12px;
    font-size: 16px;
    font-weight: 500;
}

.checkbox {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border);
    border-radius: 6px;
    flex-shrink: 0;
}

.checkbox.checked {
    background: var(--primary);
    border-color: var(--primary);
    position: relative;
}

.checkbox.checked::after {
    content: '✓';
    position: absolute;
    color: white;
    font-size: 14px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

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

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-description {
    font-size: 18px;
    color: var(--text-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    background: white;
    padding: 32px;
    border-radius: 20px;
    border: 1px solid var(--border);
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
    border-color: var(--primary);
}

.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-light);
    line-height: 1.7;
}

/* Privacy Highlight */
.privacy-highlight {
    padding: 80px 0;
    background: var(--gradient);
    color: white;
}

.privacy-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.privacy-icon {
    font-size: 64px;
    margin-bottom: 24px;
}

.privacy-content h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 20px;
}

.privacy-content p {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 32px;
    opacity: 0.95;
}

/* Download Section */
.download {
    padding: 100px 0;
    background: var(--bg-alt);
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 24px;
}

.store-button {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 32px;
    background: var(--text);
    color: white;
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s;
}

.store-button:hover {
    background: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.store-text {
    font-size: 12px;
    opacity: 0.8;
}

.store-name {
    font-size: 18px;
    font-weight: 700;
}

.download-note {
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
}

/* Footer */
.footer {
    background: var(--text);
    color: white;
    padding: 60px 0 32px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
}

.footer-title {
    font-size: 24px;
    font-weight: 700;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer-column h4 {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
    opacity: 0.6;
}

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

.footer-column li {
    margin-bottom: 12px;
}

.footer-column a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.footer-column a:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.6;
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-description {
        font-size: 18px;
    }

    .phone-mockup {
        width: 250px;
        height: 500px;
    }

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

    .nav-menu {
        display: none;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .download-buttons {
        flex-direction: column;
        align-items: center;
    }

    .store-button {
        width: 100%;
        max-width: 300px;
    }
}

/* Page Styles (for other pages) */
.page-header {
    padding: 120px 0 60px;
    background: var(--bg-alt);
    text-align: center;
}

.page-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.page-subtitle {
    font-size: 20px;
    color: var(--text-light);
}

.page-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 60px 24px;
}

.page-content h2 {
    font-size: 32px;
    font-weight: 700;
    margin: 48px 0 24px;
}

.page-content h3 {
    font-size: 24px;
    font-weight: 600;
    margin: 32px 0 16px;
}

.page-content p {
    margin-bottom: 20px;
    line-height: 1.8;
    color: var(--text-light);
}

.page-content ul, .page-content ol {
    margin: 20px 0;
    padding-left: 32px;
}

.page-content li {
    margin-bottom: 12px;
    line-height: 1.8;
    color: var(--text-light);
}

.page-content strong {
    color: var(--text);
    font-weight: 600;
}

.page-content a {
    color: var(--primary);
    text-decoration: none;
}

.page-content a:hover {
    text-decoration: underline;
}