/* ═══ X Cellular Shield — Website ═══ */
/* Dark theme matching the Android app */

:root {
    --bg-dark: #0D1117;
    --bg-surface: #161B22;
    --bg-card: #1C2129;
    --accent: #C9A84C;
    --accent-muted: #8B7332;
    --text-primary: #E6EDF3;
    --text-muted: #8B949E;
    --text-dim: #484F58;
    --border: #30363D;
    --green: #4CAF50;
    --yellow: #FFC107;
    --orange: #FF9800;
    --red: #FF5252;
    --blue: #2196F3;
    --font: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
}

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

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ═══ Hero ═══ */
.hero {
    padding: 100px 0 80px;
    text-align: center;
    background: linear-gradient(180deg, #0D1117 0%, #131920 100%);
    border-bottom: 1px solid var(--border);
}

.hero-badge {
    display: inline-block;
    font-size: 11px;
    font-family: var(--font-mono);
    color: var(--accent);
    letter-spacing: 3px;
    margin-bottom: 20px;
    padding: 6px 16px;
    border: 1px solid var(--accent-muted);
    border-radius: 20px;
}

.hero h1 {
    font-size: 52px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.hero-sub {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 40px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
}

.stat { text-align: center; }
.stat-number {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: var(--accent);
    font-family: var(--font-mono);
}
.stat-label {
    font-size: 12px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ═══ Buttons ═══ */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.2s;
    cursor: pointer;
    font-family: var(--font-mono);
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-dark);
}
.btn-primary:hover { background: #D4B45A; transform: translateY(-1px); }

.btn-outline {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

.btn-large { padding: 18px 48px; font-size: 16px; }

/* ═══ Sections ═══ */
.section {
    padding: 80px 0;
}
.section-dark {
    background: var(--bg-surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.section h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
    text-align: center;
}

.section-sub {
    text-align: center;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 48px;
    font-size: 16px;
}

/* ═══ Cards ═══ */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 28px;
    transition: border-color 0.2s;
}
.card:hover { border-color: var(--accent-muted); }

.card-icon {
    font-size: 28px;
    margin-bottom: 12px;
}

.card h3 {
    font-size: 16px;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ═══ Steps ═══ */
.steps {
    max-width: 700px;
    margin: 48px auto 0;
}

.step {
    display: flex;
    gap: 20px;
    margin-bottom: 36px;
    align-items: flex-start;
}

.step-num {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: var(--accent);
    color: var(--bg-dark);
    font-weight: 700;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.step h3 {
    font-size: 16px;
    margin-bottom: 6px;
}

.step p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ═══ Alert Boxes ═══ */
.alert-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 16px;
}

.alert-box h3 {
    font-size: 15px;
    margin-bottom: 8px;
}

.alert-box p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
}

.alert-box strong {
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 13px;
}

/* ═══ Threat Levels ═══ */
.levels {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    margin-top: 40px;
}

.level {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
}

.level-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    margin: 0 auto 12px;
}
.level-dot.green { background: var(--green); }
.level-dot.yellow { background: var(--yellow); }
.level-dot.orange { background: var(--orange); }
.level-dot.red { background: var(--red); }

.level h3 {
    font-size: 14px;
    font-family: var(--font-mono);
    letter-spacing: 2px;
    margin-bottom: 8px;
}

.level p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ═══ Download ═══ */
.download-box {
    text-align: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 48px;
    max-width: 600px;
    margin: 40px auto 0;
}

.download-info {
    margin-bottom: 32px;
}

.download-info h3 {
    font-size: 20px;
    margin-bottom: 16px;
}

.download-info ul {
    list-style: none;
    font-size: 14px;
    color: var(--text-muted);
}

.download-info li {
    padding: 4px 0;
}

.download-info li::before {
    content: "✓ ";
    color: var(--green);
}

.download-note {
    margin-top: 16px;
    font-size: 11px;
    color: var(--text-dim);
    font-family: var(--font-mono);
}

.download-note code {
    background: var(--bg-surface);
    padding: 2px 8px;
    border-radius: 4px;
}

/* ═══ Privacy ═══ */
.privacy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 16px;
    margin-top: 40px;
}

.privacy-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--bg-card);
    border-radius: 8px;
}

.privacy-icon {
    color: var(--green);
    font-size: 18px;
    flex-shrink: 0;
}

.privacy-item p {
    font-size: 14px;
    color: var(--text-muted);
}

/* ═══ Footer ═══ */
footer {
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid var(--border);
    font-size: 13px;
    color: var(--text-dim);
}

.footer-sub {
    margin-top: 4px;
}

.footer-sub a {
    color: var(--accent-muted);
    text-decoration: none;
}
.footer-sub a:hover { color: var(--accent); }

/* ═══ Learning Note ═══ */
.learning-note {
    max-width: 750px;
    margin: 40px auto 0;
    background: var(--bg-card);
    border: 1px solid var(--accent-muted);
    border-left: 3px solid var(--accent);
    border-radius: 8px;
    padding: 20px 24px;
}

.learning-note p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin: 0;
}

.learning-note strong {
    color: var(--accent);
}

/* ═══ Screenshots ═══ */
.screenshots {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.screenshot-item {
    text-align: center;
    max-width: 280px;
}

.screenshot-item img {
    width: 100%;
    max-width: 260px;
    border-radius: 24px;
    border: 2px solid var(--border);
    transition: transform 0.3s, border-color 0.3s;
}

.screenshot-item img:hover {
    transform: scale(1.03);
    border-color: var(--accent-muted);
}

.screenshot-item p {
    margin-top: 12px;
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ═══ Responsive ═══ */
@media (max-width: 768px) {
    .hero { padding: 60px 0 50px; }
    .hero h1 { font-size: 32px; }
    .hero-sub { font-size: 15px; }
    .hero-actions { flex-direction: column; align-items: center; }
    .hero-stats { gap: 30px; }
    .stat-number { font-size: 24px; }
    .section { padding: 50px 0; }
    .section h2 { font-size: 24px; }
    .step { flex-direction: column; }
    .cards { grid-template-columns: 1fr; }
}