/* --- Global Reset & Variables --- */
:root {
    --primary-color: #01875f; /* Play Store Green */
    --primary-dark: #006b4a;
    --bg-color: #ffffff;
    --text-main: #202124;
    --text-secondary: #5f6368;
    --border-color: #dadce0;
    --shadow: 0 1px 2px 0 rgba(60,64,67,.3), 0 1px 3px 1px rgba(60,64,67,.15);
    --font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 24px;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* --- Header & Navigation --- */
.main-header {
    height: 64px;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    background: #fff;
    z-index: 1000;
}

.main-header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
    font-size: 22px;
    color: var(--text-secondary);
}

.nav-logo {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.nav-links {
    display: flex;
    gap: 24px;
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 14px;
    transition: color 0.2s;
}

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

/* --- Content Typography --- */
h1 { font-size: 2.5rem; margin-bottom: 8px; }
h2 { font-size: 1.5rem; margin-bottom: 16px; margin-top: 32px; }
h3 { font-size: 1.2rem; margin-bottom: 12px; }

.section-divider {
    border: 0;
    border-top: 1px solid var(--border-color);
    margin: 40px 0;
}

/* --- Footer --- */
.main-footer {
    background: #f8f9fa;
    padding: 40px 0;
    margin-top: 60px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    text-align: center;
}

.footer-links {
    margin-bottom: 20px;
}

.footer-links a {
    margin: 0 15px;
    font-size: 14px;
}

.footer-links a:hover {
    text-decoration: underline;
}

.copyright {
    font-size: 12px;
}

/* --- Page Layouts --- */
.page-content {
    padding-top: 40px;
    max-width: 800px;
}

.text-section p {
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.content-block {
    margin-bottom: 30px;
}

.last-updated {
    font-style: italic;
    font-size: 0.9rem;
    margin-bottom: 25px;
}

/* --- Contact Page Specific Styles --- */
.contact-container {
    padding: 40px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
    margin-top: 40px;
}

.contact-info-cards {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-card {
    background: #f8f9fa;
    padding: 24px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border-color);
}

.contact-card i {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 12px;
}

.contact-card h4 {
    margin-bottom: 8px;
    font-size: 16px;
}

.contact-card p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Contact Form */
.contact-form-wrapper {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-main);
}

.form-group input, 
.form-group select, 
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}

.form-group input:focus, 
.form-group select:focus, 
.form-group textarea:focus {
    border-color: var(--primary-color);
}

.contact-form .btn-install {
    width: 100%;
    padding: 14px;
    font-size: 16px;
}

.cta-box {
    margin-top: 40px;
    padding: 30px;
    background: #e6f3ef;
    border-radius: 12px;
    text-align: center;
}

/* Responsive fix for Contact Grid */
@media (max-width: 850px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info-cards {
        order: 2;
    }
    
    .contact-form-wrapper {
        order: 1;
    }
}