/* 
 * Connectedu Mobile App Landing Page Stylesheet
 * Optimized for mobile-first QR code scans from school brochures
 */

:root {
    --app-navy-dark: #090D1A;
    --app-navy-card: #0F172A;
    --app-blue-primary: #2E5BFF;
    --app-blue-hover: #1D4ED8;
    --app-blue-soft: rgba(46, 91, 255, 0.08);
    --app-blue-glow: rgba(46, 91, 255, 0.25);
    --app-teal-accent: #0EA5E9;
    --app-bg-light: #F8FAFC;
    --app-border-color: #E2E8F0;
    --app-text-main: #0F172A;
    --app-text-muted: #475569;
    --app-radius-lg: 20px;
    --app-radius-md: 12px;
}

/* Base Body Adjustments */
body.app-landing-body {
    background-color: var(--app-bg-light);
    color: var(--app-text-main);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

/* Header Bar */
.app-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    padding: 14px 0;
}

.app-header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.app-logo img {
    height: 38px;
    width: auto;
    display: block;
}

.app-header-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--app-blue-soft);
    color: var(--app-blue-primary);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 999px;
    border: 1px solid rgba(46, 91, 255, 0.2);
}

.app-header-badge i {
    font-size: 0.75rem;
}

/* Hero Section */
.app-hero {
    position: relative;
    padding: 60px 24px 80px;
    background: radial-gradient(100% 100% at 50% 0%, rgba(46, 91, 255, 0.07) 0%, rgba(248, 250, 252, 0) 100%), #FFFFFF;
    text-align: center;
    border-bottom: 1px solid var(--app-border-color);
}

.app-hero-container {
    max-width: 860px;
    margin: 0 auto;
}

.app-brand-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #FFFFFF;
    border: 1px solid var(--app-border-color);
    box-shadow: 0 4px 14px rgba(9, 13, 26, 0.05);
    padding: 6px 18px;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--app-text-muted);
    margin-bottom: 24px;
}

.app-brand-pill .dot {
    width: 8px;
    height: 8px;
    background-color: var(--app-blue-primary);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--app-blue-primary);
}

.app-hero-title {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: clamp(2.2rem, 5vw, 3.4rem);
    font-weight: 800;
    color: var(--app-navy-dark);
    line-height: 1.18;
    letter-spacing: -0.02em;
    margin-bottom: 18px;
}

.app-hero-title .gradient-text {
    background: linear-gradient(135deg, var(--app-blue-primary) 0%, var(--app-teal-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.app-hero-subtitle {
    font-size: clamp(1.05rem, 2.2vw, 1.25rem);
    color: var(--app-text-muted);
    line-height: 1.6;
    max-width: 680px;
    margin: 0 auto 36px;
}

.app-hero-cta-heading {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--app-navy-dark);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 20px;
}

/* Store Buttons Grid */
.app-store-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    margin-bottom: 24px;
}

/* Official Store Button Styles */
.store-btn {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--app-navy-dark);
    color: #FFFFFF;
    padding: 14px 28px;
    border-radius: 14px;
    text-decoration: none;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 10px 25px -5px rgba(9, 13, 26, 0.2);
    min-width: 220px;
    min-height: 58px;
    position: relative;
    border: 2px solid transparent;
}

.store-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 32px -6px rgba(46, 91, 255, 0.3);
    background: #000000;
    color: #FFFFFF;
}

.store-btn:active {
    transform: translateY(0);
}

.store-btn i {
    font-size: 2.2rem;
    color: #FFFFFF;
}

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

.store-btn-subtitle {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    opacity: 0.8;
    font-weight: 500;
    line-height: 1.2;
}

.store-btn-title {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.2;
}

/* Device Detection Badge on Buttons */
.store-btn.recommended {
    border-color: var(--app-blue-primary);
    box-shadow: 0 0 0 3px rgba(46, 91, 255, 0.25), 0 12px 28px -4px rgba(46, 91, 255, 0.4);
}

.store-btn.recommended .device-badge {
    position: absolute;
    top: -12px;
    right: 12px;
    background: linear-gradient(135deg, var(--app-blue-primary), var(--app-teal-accent));
    color: #FFFFFF;
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 3px 10px;
    border-radius: 999px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* Section Common Styling */
.app-section {
    padding: 80px 24px;
}

.app-section-light {
    background-color: #FFFFFF;
}

.app-section-tint {
    background-color: #F8FAFC;
}

.app-container {
    max-width: 1140px;
    margin: 0 auto;
}

.app-section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 50px;
}

.app-section-tag {
    display: inline-block;
    color: var(--app-blue-primary);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 10px;
}

.app-section-title {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 800;
    color: var(--app-navy-dark);
    line-height: 1.25;
}

/* Smart Platform Section (4 Experiences) */
.roles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.role-card {
    background: #FFFFFF;
    border-radius: var(--app-radius-lg);
    padding: 32px 28px;
    border: 1px solid var(--app-border-color);
    box-shadow: 0 4px 20px rgba(9, 13, 26, 0.03);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.role-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: transparent;
    transition: background 0.3s ease;
}

.role-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 36px rgba(9, 13, 26, 0.08);
    border-color: rgba(46, 91, 255, 0.3);
}

.role-card:hover::before {
    background: linear-gradient(90deg, var(--app-blue-primary), var(--app-teal-accent));
}

.role-icon {
    width: 58px;
    height: 58px;
    border-radius: 16px;
    background: var(--app-blue-soft);
    color: var(--app-blue-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.role-card:hover .role-icon {
    background: var(--app-blue-primary);
    color: #FFFFFF;
}

.role-title {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--app-navy-dark);
    margin-bottom: 10px;
}

.role-description {
    font-size: 0.95rem;
    color: var(--app-text-muted);
    line-height: 1.55;
}

/* Why Connectedu Section */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.benefit-card {
    background: #FFFFFF;
    border-radius: var(--app-radius-md);
    padding: 24px 20px;
    border: 1px solid var(--app-border-color);
    box-shadow: 0 2px 10px rgba(9, 13, 26, 0.03);
    display: flex;
    align-items: center;
    gap: 16px;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.benefit-card:hover {
    transform: translateY(-2px);
    border-color: var(--app-blue-primary);
}

.benefit-icon-check {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(14, 165, 233, 0.12);
    color: var(--app-teal-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.benefit-text {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--app-navy-dark);
}

/* App Experience Mockup Section */
.app-experience-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

@media (max-width: 900px) {
    .app-experience-wrapper {
        grid-template-columns: 1fr;
        gap: 36px;
    }
}

.app-experience-info {
    max-width: 480px;
}

.app-experience-info h3 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    color: var(--app-navy-dark);
    margin-bottom: 16px;
    line-height: 1.25;
}

.app-experience-info p {
    font-size: 1.05rem;
    color: var(--app-text-muted);
    line-height: 1.6;
    margin-bottom: 24px;
}

.role-pills-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.role-pill-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 18px;
    border-radius: 12px;
    background: #FFFFFF;
    border: 1px solid var(--app-border-color);
    font-weight: 600;
    color: var(--app-navy-dark);
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.role-pill-item i {
    color: var(--app-blue-primary);
}

.role-pill-item.active,
.role-pill-item:hover {
    background: var(--app-blue-soft);
    border-color: var(--app-blue-primary);
    color: var(--app-blue-primary);
}

/* Phone Mockup Styling */
.phone-mockup-container {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.phone-frame {
    width: 100%;
    max-width: 320px;
    background: var(--app-navy-dark);
    border-radius: 44px;
    padding: 12px;
    box-shadow: 0 25px 60px -15px rgba(9, 13, 26, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.1);
    position: relative;
}

.phone-screen {
    width: 100%;
    aspect-ratio: 9 / 19.5;
    background: #FFFFFF;
    border-radius: 34px;
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
}

.phone-notch {
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 90px;
    height: 18px;
    background: var(--app-navy-dark);
    border-radius: 10px;
    z-index: 10;
}

.phone-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Download CTA Section */
.app-cta-banner {
    background: linear-gradient(135deg, var(--app-navy-dark) 0%, #0F172A 100%);
    border-radius: var(--app-radius-lg);
    padding: 60px 36px;
    text-align: center;
    color: #FFFFFF;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(9, 13, 26, 0.3);
}

.app-cta-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, rgba(46, 91, 255, 0.15), transparent 60%);
    pointer-events: none;
}

.app-cta-title {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    color: #FFFFFF;
    margin-bottom: 14px;
}

.app-cta-subtitle {
    font-size: 1.1rem;
    color: #94A3B8;
    max-width: 540px;
    margin: 0 auto 36px;
}

/* Footer Section */
.app-footer {
    background: #FFFFFF;
    border-top: 1px solid var(--app-border-color);
    padding: 50px 24px 40px;
}

.app-footer-container {
    max-width: 1140px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.app-footer-logo img {
    height: 42px;
    width: auto;
    margin-bottom: 14px;
}

.app-footer-tagline {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--app-text-muted);
    margin-bottom: 28px;
}

.app-footer-contact {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 24px;
    margin-bottom: 32px;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--app-navy-dark);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 8px;
    background: var(--app-bg-light);
    border: 1px solid var(--app-border-color);
    transition: all 0.2s ease;
}

.contact-link i {
    color: var(--app-blue-primary);
}

.contact-link:hover {
    color: var(--app-blue-primary);
    border-color: var(--app-blue-primary);
    background: var(--app-blue-soft);
}

.app-footer-copyright {
    font-size: 0.85rem;
    color: #94A3B8;
    border-top: 1px solid var(--app-border-color);
    width: 100%;
    padding-top: 24px;
}

/* Mobile Responsiveness Rules */
@media (max-width: 640px) {
    .app-hero {
        padding: 40px 16px 50px;
    }
    
    .app-section {
        padding: 50px 16px;
    }
    
    .store-btn {
        width: 100%;
        min-width: unset;
        justify-content: center;
        padding: 16px 20px;
    }

    .app-cta-banner {
        padding: 40px 20px;
    }

    .app-footer-contact {
        flex-direction: column;
        width: 100%;
        gap: 12px;
    }

    .contact-link {
        width: 100%;
        justify-content: center;
    }
}