/* ==========================================================================
   SoloTutes Android App Beta Campaign Styles
   Brand Colors: Primary Blue (#2563EB), Emerald Green (#10B981), Amber (#F59E0B)
   ========================================================================== */

:root {
    --st-primary: #2563eb;
    --st-primary-hover: #1d4ed8;
    --st-primary-light: #eff6ff;
    --st-emerald: #10b981;
    --st-emerald-dark: #059669;
    --st-emerald-light: #ecfdf5;
    --st-amber: #f59e0b;
    --st-amber-light: #fffbeb;
    --st-purple: #7c3aed;
    --st-purple-light: #f5f3ff;
    --st-dark: #0f172a;
    --st-gray-900: #1e293b;
    --st-gray-700: #334155;
    --st-gray-500: #64748b;
    --st-gray-200: #e2e8f0;
    --st-gray-100: #f1f5f9;
    --st-card-bg: #ffffff;
    --st-radius-sm: 8px;
    --st-radius-md: 12px;
    --st-radius-lg: 18px;
    --st-radius-xl: 24px;
    --st-shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.05);
    --st-shadow-md: 0 8px 20px rgba(37, 99, 235, 0.08);
    --st-shadow-lg: 0 16px 36px rgba(15, 23, 42, 0.12);
}

/* Base Wrapper Reset */
.st-campaign-wrapper {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--st-gray-700);
    line-height: 1.6;
    max-width: 1180px;
    margin: 0 auto;
    padding: 24px 16px 60px;
    box-sizing: border-box;
}

.st-campaign-wrapper * {
    box-sizing: border-box;
}

/* ==========================================================================
   1. HERO SECTION
   ========================================================================== */
.st-hero-card {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 60%, #1e3a8a 100%);
    border-radius: var(--st-radius-xl);
    padding: 56px 40px;
    color: #ffffff;
    position: relative;
    overflow: hidden;
    box-shadow: var(--st-shadow-lg);
    margin-bottom: 40px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.st-hero-card::before {
    content: "";
    position: absolute;
    top: -80px;
    right: -80px;
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.35) 0%, rgba(37, 99, 235, 0) 70%);
    border-radius: 50%;
    pointer-events: none;
}

.st-hero-grid {
    display: grid;
    grid-template-columns: 1.25fr 0.95fr;
    gap: 40px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.st-badge-beta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(245, 158, 11, 0.18);
    border: 1px solid rgba(245, 158, 11, 0.5);
    color: #fbbf24;
    font-weight: 700;
    font-size: 13px;
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 20px;
    letter-spacing: 0.3px;
}

.st-hero-title {
    font-size: 42px;
    font-weight: 800;
    line-height: 1.18;
    color: #ffffff;
    margin: 0 0 16px 0;
    letter-spacing: -0.8px;
}

.st-hero-title span.st-highlight {
    background: linear-gradient(90deg, #60a5fa 0%, #34d399 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.st-hero-offer-box {
    background: rgba(16, 185, 129, 0.12);
    border-left: 4px solid var(--st-emerald);
    padding: 14px 18px;
    border-radius: var(--st-radius-sm);
    margin: 20px 0 24px;
}

.st-hero-offer-title {
    font-size: 16px;
    font-weight: 700;
    color: #34d399;
    margin: 0 0 4px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.st-hero-offer-desc {
    font-size: 14px;
    color: #cbd5e1;
    margin: 0;
    line-height: 1.5;
}

.st-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    margin-top: 28px;
}

/* Main CTA Button */
.st-btn-download-primary {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: #ffffff !important;
    font-weight: 700;
    font-size: 16px;
    padding: 16px 28px;
    border-radius: var(--st-radius-md);
    text-decoration: none !important;
    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.35);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: none;
    cursor: pointer;
}

.st-btn-download-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(16, 185, 129, 0.45);
    color: #ffffff !important;
}

.st-btn-download-primary svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
    flex-shrink: 0;
}

.st-btn-text-group {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.st-btn-text-main {
    font-size: 16px;
    font-weight: 800;
    line-height: 1.2;
}

.st-btn-text-sub {
    font-size: 11px;
    font-weight: 500;
    opacity: 0.9;
    line-height: 1.2;
    margin-top: 2px;
}

.st-hero-secondary-link {
    color: #94a3b8 !important;
    font-size: 14px;
    text-decoration: underline !important;
    cursor: pointer;
    transition: color 0.2s;
}

.st-hero-secondary-link:hover {
    color: #ffffff !important;
}

.st-meta-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    font-size: 12px;
    color: #94a3b8;
    margin-top: 20px;
    align-items: center;
}

.st-meta-tag-item {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

/* Right App Preview Showcase */
.st-hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.st-phone-frame {
    width: 280px;
    background: #0f172a;
    border: 8px solid #334155;
    border-radius: 36px;
    box-shadow: 0 24px 50px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.1);
    overflow: hidden;
    padding: 16px 12px;
}

.st-phone-notch {
    width: 80px;
    height: 14px;
    background: #334155;
    border-radius: 0 0 10px 10px;
    margin: -16px auto 12px;
}

.st-phone-screen {
    background: #f8fafc;
    border-radius: 20px;
    padding: 16px 14px;
    color: #0f172a;
    font-size: 12px;
}

.st-phone-app-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid #e2e8f0;
}

.st-phone-app-logo {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--st-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 800;
    font-size: 15px;
}

.st-phone-app-title {
    font-weight: 800;
    font-size: 13px;
    color: var(--st-gray-900);
    line-height: 1.2;
}

.st-phone-app-sub {
    font-size: 10px;
    color: var(--st-gray-500);
}

.st-mock-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 10px;
    margin-bottom: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.03);
}

.st-mock-badge {
    display: inline-block;
    padding: 2px 6px;
    font-size: 9px;
    font-weight: 700;
    border-radius: 4px;
    margin-bottom: 4px;
}

.st-badge-free {
    background: #dcfce7;
    color: #15803d;
}

.st-badge-ai {
    background: #f3e8ff;
    color: #7e22ce;
}

/* ==========================================================================
   2. PERKS & FEATURES GRID
   ========================================================================== */
.st-section-title {
    text-align: center;
    margin: 50px 0 12px;
}

.st-section-title h2 {
    font-size: 30px;
    font-weight: 800;
    color: var(--st-gray-900);
    margin: 0 0 8px;
    letter-spacing: -0.5px;
}

.st-section-title p {
    font-size: 16px;
    color: var(--st-gray-500);
    max-width: 600px;
    margin: 0 auto;
}

.st-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    margin-top: 36px;
}

.st-feature-item {
    background: #ffffff;
    border: 1px solid var(--st-gray-200);
    border-radius: var(--st-radius-lg);
    padding: 26px 22px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: var(--st-shadow-sm);
}

.st-feature-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--st-shadow-md);
    border-color: #cbd5e1;
}

.st-feature-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--st-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.st-icon-blue { background: var(--st-primary-light); color: var(--st-primary); }
.st-icon-green { background: var(--st-emerald-light); color: var(--st-emerald-dark); }
.st-icon-purple { background: var(--st-purple-light); color: var(--st-purple); }
.st-icon-amber { background: var(--st-amber-light); color: var(--st-amber); }

.st-feature-icon svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

.st-feature-item h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--st-gray-900);
    margin: 0 0 8px;
}

.st-feature-item p {
    font-size: 14px;
    color: var(--st-gray-500);
    margin: 0;
    line-height: 1.55;
}

/* ==========================================================================
   3. STEP-BY-STEP APK INSTALLATION GUIDE
   ========================================================================== */
.st-install-guide {
    background: #f8fafc;
    border: 1px solid var(--st-gray-200);
    border-radius: var(--st-radius-xl);
    padding: 40px 32px;
    margin-top: 50px;
}

.st-install-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    margin-top: 28px;
}

.st-step-card {
    background: #ffffff;
    border: 1px solid var(--st-gray-200);
    border-radius: var(--st-radius-md);
    padding: 22px 18px;
    position: relative;
}

.st-step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--st-primary);
    color: #ffffff;
    font-weight: 800;
    font-size: 13px;
    border-radius: 50%;
    margin-bottom: 12px;
}

.st-step-card h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--st-gray-900);
    margin: 0 0 6px;
}

.st-step-card p {
    font-size: 13px;
    color: var(--st-gray-500);
    margin: 0;
    line-height: 1.5;
}

/* ==========================================================================
   4. FAQ ACCORDION
   ========================================================================== */
.st-faq-container {
    max-width: 800px;
    margin: 36px auto 0;
}

.st-faq-card {
    background: #ffffff;
    border: 1px solid var(--st-gray-200);
    border-radius: var(--st-radius-md);
    margin-bottom: 12px;
    overflow: hidden;
}

.st-faq-header {
    padding: 16px 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 700;
    font-size: 15px;
    color: var(--st-gray-900);
    user-select: none;
    transition: background-color 0.2s;
}

.st-faq-header:hover {
    background-color: #f8fafc;
}

.st-faq-icon {
    font-size: 18px;
    transition: transform 0.2s ease;
    color: var(--st-primary);
}

.st-faq-body {
    display: none;
    padding: 0 20px 18px;
    font-size: 14px;
    color: var(--st-gray-700);
    line-height: 1.6;
    border-top: 1px solid #f1f5f9;
}

.st-faq-card.active .st-faq-body {
    display: block;
}

.st-faq-card.active .st-faq-icon {
    transform: rotate(45deg);
}

/* ==========================================================================
   5. EMBEDDABLE SHORTCODES (BUTTON & BANNER)
   ========================================================================== */
/* Standard Play Store / Material Style Button */
.st-shortcode-btn-wrapper {
    margin: 14px 0;
    display: inline-block;
}

.st-material-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: #0f172a;
    color: #ffffff !important;
    text-decoration: none !important;
    border-radius: 12px;
    padding: 12px 22px;
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.2);
    transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.st-material-btn:hover {
    background: #1e293b;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.3);
    color: #ffffff !important;
}

.st-material-btn svg {
    width: 28px;
    height: 28px;
    fill: #34d399; /* Android Green */
    flex-shrink: 0;
}

.st-material-btn .st-subtext {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    opacity: 0.8;
    line-height: 1;
}

.st-material-btn .st-maintext {
    font-size: 16px;
    font-weight: 800;
    line-height: 1.2;
    margin-top: 2px;
}

/* Compact Promo Banner */
.st-app-banner {
    background: linear-gradient(135deg, #eff6ff 0%, #ecfdf5 100%);
    border: 1.5px solid #bfdbfe;
    border-radius: var(--st-radius-lg);
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    margin: 20px 0;
    box-shadow: var(--st-shadow-sm);
}

.st-app-banner-info {
    display: flex;
    align-items: center;
    gap: 16px;
}

.st-app-banner-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--st-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: #ffffff;
}

.st-app-banner-icon svg {
    width: 26px;
    height: 26px;
    fill: currentColor;
}

.st-app-banner-title {
    font-size: 16px;
    font-weight: 800;
    color: var(--st-gray-900);
    margin: 0 0 2px;
}

.st-app-banner-desc {
    font-size: 13px;
    color: var(--st-gray-500);
    margin: 0;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .st-hero-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .st-hero-card {
        padding: 32px 20px;
    }
    .st-hero-title {
        font-size: 30px;
    }
    .st-hero-visual {
        display: none; /* Hide 3D mockup on mobile for faster loading */
    }
    .st-app-banner {
        flex-direction: column;
        align-items: flex-start;
    }
    .st-app-banner .st-material-btn {
        width: 100%;
        justify-content: center;
    }
}