:root {
    /* Android.com 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;

    /* Spacing & Radii */
    --section-padding: 120px 24px;
    --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;
}

/* Typography */
h1 {
    font-size: clamp(2.8rem, 10vw, 5rem);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
    color: var(--android-navy);
    text-align: center;
}

h2 {
    font-size: clamp(2.2rem, 6vw, 3.5rem);
    font-weight: 500;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
    color: var(--android-navy);
}

p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 640px;
}

/* Navigation styles loaded via header.css */

/* Premium Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    font-size: 1rem;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--android-navy);
    color: var(--white);
}

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

.btn-outline {
    border: 2px solid var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover {
    border-color: var(--android-navy);
    background: var(--bg-light);
}

/* Hero Section - android.com style */
.hero {
    min-height: 90vh;
    padding: 180px 24px 100px;
    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%);
}

.hero-tag {
    background: rgba(61, 220, 132, 0.15);
    color: #2d8a58;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 32px;
    display: inline-block;
}

.hero .subtitle {
    margin-bottom: 48px;
    font-size: 1.5rem;
    line-height: 1.4;
    margin-left: auto;
    margin-right: auto;
}

.hero-btns {
    display: flex;
    gap: 20px;
}

/* Modular Grid Sections */
.section {
    padding: var(--section-padding);
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-header p {
    margin: 0 auto;
}

.grid-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

/* Premium Cards */
.card {
    padding: 60px;
    background: var(--bg-light);
    border-radius: var(--card-radius);
    transition: var(--transition);
    border: 1px solid transparent;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card:hover {
    background: var(--white);
    border-color: var(--border-color);
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 32px;
    display: block;
}

.card h3 {
    font-family: 'Google Sans', sans-serif;
    font-size: 1.75rem;
    margin-bottom: 16px;
    color: var(--android-navy);
}

/* Product-specific Styling */
.product-section {
    background-color: var(--android-navy);
    color: var(--white);
    border-radius: 0;
}

.product-section h2, .product-section p {
    color: var(--white);
}

.product-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 60px;
    border-radius: var(--card-radius);
    transition: var(--transition);
}

.product-card:hover {
    background: rgba(255, 255, 255, 0.07);
    transform: scale(1.02);
}

.product-card h3 {
    font-family: 'Google Sans', sans-serif;
    font-size: 2rem;
    margin-bottom: 16px;
    color: var(--android-green);
}

.product-card p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 100%;
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    background: var(--android-green);
    color: var(--android-navy);
    border-radius: 8px;
    font-size: 0.7rem;
    font-weight: 700;
    margin-bottom: 24px;
    text-transform: uppercase;
}

/* About Section - High Contrast */
.about-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 80px;
    align-items: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.stat-card {
    background: var(--android-green);
    padding: 40px;
    border-radius: var(--card-radius);
    text-align: center;
    color: var(--android-navy);
}

.stat-value {
    display: block;
    font-size: 3.5rem;
    font-weight: 700;
    font-family: 'Google Sans', sans-serif;
    line-height: 1;
}

.stat-label {
    font-size: 1rem;
    font-weight: 500;
    opacity: 0.8;
}

.tech-pill-container {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 32px;
}

.tech-pill {
    background: var(--white);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.tech-pill:hover {
    border-color: var(--android-green);
    color: var(--android-deep-blue);
}

/* CTA - android.com style minimalist */
.cta-section {
    text-align: center;
    padding: 160px 24px;
    background: var(--bg-light);
}

.cta-section h2 {
    margin-bottom: 40px;
}

/* Footer loaded via footer.css */

@media (max-width: 1024px) {
    .about-container { grid-template-columns: 1fr; }
    .nav-links { display: none; }
}

@media (max-width: 768px) {
    .hero { padding-top: 140px; }
    h1 { font-size: 3rem; }
    .hero-btns, .cta-buttons { flex-direction: column; width: 100%; gap: 16px; }
    .btn { width: 100%; }
    .grid-layout { grid-template-columns: 1fr; }
    .trust-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .trust-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
        padding: 32px 24px;
    }
}

/* Engineering Trust Section Layout */
.trust-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin-top: 60px;
}

.trust-card {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: 24px;
    padding: 40px;
    background: var(--bg-light);
    border-radius: var(--card-radius);
    transition: var(--transition);
    border: 1px solid transparent;
}

.trust-card:hover {
    background: var(--white);
    border-color: var(--border-color);
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(7, 48, 66, 0.05);
}

.trust-icon {
    font-size: 3rem;
    line-height: 1;
    flex-shrink: 0;
}

.trust-info h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
    color: var(--android-navy);
    margin-top: 0;
}

.trust-info p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Contact CTA Buttons Layout */
.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
    margin-top: 32px;
}