/* InboxKeep - Landing Page Styles */

:root {
    --primary: #6366F1;
    --primary-dark: #4F46E5;
    --primary-light: #818CF8;
    --secondary: #10B981;
    --dark: #1F2937;
    --dark-lighter: #374151;
    --gray: #6B7280;
    --gray-light: #9CA3AF;
    --light: #F9FAFB;
    --white: #FFFFFF;
    --gradient: linear-gradient(135deg, #6366F1 0%, #8B5CF6 100%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--white);
    color: var(--dark);
    line-height: 1.6;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--dark);
    font-weight: 600;
    font-size: 1.25rem;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--gray);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: color 0.2s;
}

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

/* Hero Section */
.hero {
    padding: 160px 0 120px;
    text-align: center;
    background: linear-gradient(180deg, #F9FAFB 0%, #FFFFFF 100%);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--dark);
}

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

.subtitle {
    font-size: 1.25rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto 40px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

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

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

.btn-large {
    padding: 18px 36px;
    font-size: 1.125rem;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--white);
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: var(--dark);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--light);
    border-radius: 16px;
    padding: 32px;
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--dark);
}

.feature-card p {
    color: var(--gray);
    font-size: 0.9375rem;
}

/* Privacy Section */
.privacy-section {
    padding: 100px 0;
    background: linear-gradient(180deg, #F9FAFB 0%, #FFFFFF 100%);
}

.privacy-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: var(--dark);
}

.privacy-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.privacy-item {
    background: var(--white);
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.privacy-item h3 {
    font-size: 1.125rem;
    margin-bottom: 12px;
    color: var(--dark);
}

.privacy-item p {
    color: var(--gray);
    font-size: 0.9375rem;
}

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

.download h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.download-subtitle {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: 32px;
}

.download .btn-primary {
    background: var(--white);
    color: var(--primary);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}

.download .btn-primary:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* Footer */
.footer {
    background: var(--dark);
    color: var(--gray-light);
    padding: 60px 0 30px;
}

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

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.9375rem;
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column h4 {
    color: var(--white);
    font-size: 0.9375rem;
    margin-bottom: 16px;
}

.footer-column a {
    display: block;
    color: var(--gray-light);
    text-decoration: none;
    font-size: 0.875rem;
    margin-bottom: 12px;
    transition: color 0.2s;
}

.footer-column a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid var(--dark-lighter);
    padding-top: 30px;
    text-align: center;
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .subtitle {
        font-size: 1.125rem;
    }

    .features h2,
    .privacy-section h2,
    .download h2 {
        font-size: 2rem;
    }

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

    .footer-links {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

/* Legal Pages */
.legal-page {
    padding: 120px 0 80px;
    min-height: 100vh;
}

.legal-page h1 {
    font-size: 2.5rem;
    margin-bottom: 40px;
    color: var(--dark);
}

.legal-page h2 {
    font-size: 1.5rem;
    margin: 40px 0 20px;
    color: var(--dark);
}

.legal-page p,
.legal-page li {
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 16px;
}

.legal-page ul {
    margin-left: 24px;
    margin-bottom: 24px;
}

.legal-page .last-updated {
    color: var(--gray-light);
    font-size: 0.875rem;
    margin-bottom: 40px;
}