:root {
    /* Android-Inspired Palette */
    --android-green: #3DDC84;
    --android-navy: #073042;
    --android-deep-blue: #1a73e8;
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --border-color: #e8eaed;
    --card-radius: 28px;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Roboto', sans-serif;
    color: var(--text-primary);
    background-color: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .nav-logo {
    font-family: 'Google Sans', sans-serif;
}

/* Navigation styles loaded via header.css */

/* Hero Section */
.hero {
    min-height: 80vh;
    padding: 160px 24px 80px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: radial-gradient(circle at 50% 50%, #f0f7f3 0%, #ffffff 100%);
    border-bottom: 1px solid var(--border-color);
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--white);
    color: #2d8a58;
    font-weight: 600;
    padding: 6px 16px 6px 8px;
    border-radius: 30px;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(0, 0, 0, 0.04);
    margin-bottom: 24px;
}

.hero-badge-icon {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    display: block;
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--android-navy);
    margin-bottom: 24px;
    max-width: 800px;
}

.hero .subtitle {
    font-size: 1.35rem;
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto 40px;
}

/* Play Badge Button */
.play-badge-btn {
    display: inline-flex;
    align-items: center;
    background: var(--android-navy);
    color: var(--white);
    padding: 12px 28px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: 1px solid transparent;
    cursor: pointer;
}

.play-badge-btn:hover {
    background: #0a4560;
    transform: scale(1.05);
    box-shadow: 0 10px 20px rgba(7, 48, 66, 0.15);
}

.play-badge-btn span {
    margin-left: 10px;
    font-size: 1.1rem;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 100px 24px;
}

/* Features Grid Section */
.features-header {
    text-align: center;
    margin-bottom: 80px;
}

.features-header h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    color: var(--android-navy);
    margin-bottom: 16px;
}

.features-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Tier Comparison Grid */
.tier-comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin: 60px auto 100px;
    max-width: 1200px;
}

.tier-card {
    background: var(--white);
    border-radius: var(--card-radius);
    padding: 48px;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

.tier-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(7, 48, 66, 0.08);
}

.tier-card.premium-tier {
    border-color: var(--android-green);
    background: radial-gradient(circle at 100% 0%, #f0fdf4 0%, #ffffff 70%);
}

.tier-header {
    margin-bottom: 24px;
}

.tier-badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--bg-light);
    color: var(--text-secondary);
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.tier-badge.premium-badge {
    background: rgba(61, 220, 132, 0.15);
    color: var(--android-navy);
}

.tier-header h2 {
    font-size: 2.2rem;
    margin-bottom: 12px;
    color: var(--android-navy);
}

.tier-header p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.tier-divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 24px 0;
    width: 100%;
}

.tier-features-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.tier-features-list li {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.feature-bullet {
    font-size: 1.5rem;
    line-height: 1.2;
    flex-shrink: 0;
}

.feature-text {
    font-size: 1.05rem;
    color: var(--text-primary);
    line-height: 1.6;
}

.feature-text strong {
    color: var(--android-navy);
    font-weight: 600;
}

/* Privacy Guarantee Banner */
.privacy-banner {
    background: var(--android-navy);
    color: var(--white);
    border-radius: var(--card-radius);
    padding: 80px 48px;
    text-align: center;
    margin-top: 80px;
    position: relative;
    overflow: hidden;
}

.privacy-banner h2 {
    color: var(--white);
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.privacy-banner p {
    color: rgba(255, 255, 255, 0.85);
    max-width: 700px;
    margin: 0 auto 32px;
    font-size: 1.15rem;
}

.privacy-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--android-green);
    color: var(--android-navy);
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
}

/* CTA */
.cta-section {
    background: var(--bg-light);
    text-align: center;
    padding: 100px 24px;
    border-top: 1px solid var(--border-color);
}

.cta-section h2 {
    font-size: 2.2rem;
    color: var(--android-navy);
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 32px;
}

/* Footer loaded via footer.css */


/* Obsolete card styles removed */

@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero { padding-top: 140px; min-height: auto; }
    .container { padding: 60px 16px; }
    .privacy-banner { padding: 48px 24px; }
    .tier-comparison-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .tier-card {
        padding: 32px 24px;
    }
}

/* Play Store Badge Link & Hover */
.play-store-badge-link {
    display: inline-block;
    transition: var(--transition);
}

.play-store-badge-link:hover {
    transform: scale(1.05);
}

.play-store-badge-img {
    height: 62px;
    display: block;
}

/* Video Section */
.video-wrapper {
    margin-top: 50px;
    display: flex;
    justify-content: center;
    width: 100%;
}

.video-wrapper iframe {
    width: 100%;
    max-width: 960px;
    aspect-ratio: 16 / 9;
    height: auto;
    border-radius: 24px;
    border: none;
    box-shadow: 0 20px 40px rgba(7, 48, 66, 0.12);
}