.app-body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: #0f172a;
    color: #e2e8f0;
    line-height: 1.6;
    overflow-x: hidden;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Advertisement bar */
.ad-disclaimer-top {
    background-color: #1e293b;
    color: #94a3b8;
    text-align: center;
    padding: 10px 15px;
    font-size: 13px;
    border-bottom: 1px solid #334155;
    letter-spacing: 0.5px;
}

/* Header Styles */
.app-header {
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-logo {
    font-size: 28px;
    font-weight: 800;
    background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
    letter-spacing: -1px;
}


/* Hero Section */
.hero-section {
    padding: 120px 0 80px;
    text-align: center;
    background: linear-gradient(to bottom, rgba(15, 23, 42, 0.7), rgba(15, 23, 42, 0.9)), 
                url('../images/hero-bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    animation: fadeIn 1s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 24px;
    color: #f8fafc;
    letter-spacing: -1.5px;
    line-height: 1.1;
    text-shadow: 0 4px 12px rgba(0,0,0,0.5);
}

.hero-subtitle {
    font-size: 18px;
    color: #94a3b8;
    max-width: 700px;
    margin: 0 auto 40px;
}

/* Comparison Section */
.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 80px;
}

.product-card {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 24px;
    padding: 40px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    animation: slideIn 0.8s ease-out both;
}

.product-card:nth-child(2) {
    animation-delay: 0.2s;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #6366f1, #a855f7);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
    background: rgba(30, 41, 59, 0.8);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.product-card:hover::before {
    opacity: 1;
}

.card-label {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(99, 102, 241, 0.1);
    color: #818cf8;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.product-name {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 10px;
    color: #f8fafc;
}

.price-tag {
    font-size: 20px;
    color: #38bdf8;
    margin-bottom: 30px;
    font-weight: 600;
}

.features-list {
    list-style: none;
    padding: 0;
    margin: 0 0 40px 0;
    flex-grow: 1;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 18px;
    font-size: 15px;
    color: #cbd5e1;
}

.feature-icon {
    width: 20px;
    height: 20px;
    background: #4ade80;
    border-radius: 50%;
    margin-right: 12px;
    margin-top: 2px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0f172a;
    font-size: 12px;
    font-weight: bold;
}

.cta-button {
    display: block;
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
    color: white;
    text-align: center;
    text-decoration: none;
    border-radius: 16px;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    transform: scale(1.02);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
}

/* Comparison Table section for "Easy to understand" */
.table-section {
    padding: 60px 0;
    background: rgba(15, 23, 42, 0.3);
    border-radius: 32px;
    margin-bottom: 80px;
}

.table-title {
    text-align: center;
    font-size: 32px;
    margin-bottom: 40px;
}

.comparison-table-wrapper {
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

.table-th {
    text-align: left;
    padding: 20px;
    background: #1e293b;
    border-bottom: 2px solid #334155;
    color: #94a3b8;
    font-weight: 600;
}

.table-td {
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: #cbd5e1;
}

.table-row:hover {
    background: rgba(255, 255, 255, 0.02);
}

/* Footer Styles */
.app-footer {
    background-color: #020617;
    padding: 80px 0 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-disclaimer {
    color: #64748b;
    font-size: 14px;
    text-align: center;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-bottom: 40px;
}

.footer-link {
    color: #94a3b8;
    text-decoration: none;
    font-size: 15px;
    transition: color 0.3s ease;
    cursor: pointer;
}

.footer-link:hover {
    color: #6366f1;
}

.footer-info {
    text-align: center;
    color: #475569;
    font-size: 13px;
    margin-bottom: 30px;
}

/* Popup Styles */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 20px;
}

.popup-content {
    background: #1e293b;
    max-width: 800px;
    width: 100%;
    max-height: 80vh;
    border-radius: 24px;
    padding: 40px;
    position: relative;
    overflow-y: auto;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.5);
}

.popup-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
}

.popup-title {
    font-size: 28px;
    margin-bottom: 20px;
    color: #f8fafc;
}

.popup-body {
    color: #cbd5e1;
    font-size: 16px;
}

.popup-body h3 {
    color: #f8fafc;
    margin-top: 25px;
}

/* Info Section */
.info-section {
    padding: 80px 0;
}

.section-tag {
    display: block;
    text-align: center;
    color: #6366f1;
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 50px;
    color: #f8fafc;
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.guide-card {
    background: rgba(30, 41, 59, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: 20px;
    transition: transform 0.3s ease;
}

.guide-card:hover {
    transform: translateY(-5px);
    background: rgba(30, 41, 59, 0.5);
}

.guide-icon {
    font-size: 32px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #6366f1, #a855f7);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.guide-h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #f8fafc;
}

.guide-p {
    color: #94a3b8;
    font-size: 15px;
}

/* FAQ Accordion */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: rgba(30, 41, 59, 0.3);
    border-radius: 12px;
    margin-bottom: 15px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.faq-question {
    padding: 20px 25px;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #f8fafc;
}

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease-in-out;
    color: #cbd5e1;
    font-size: 15px;
}

.faq-item.active .faq-answer {
    padding: 10px 25px 25px;
    max-height: 500px;
}

.faq-toggle {
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(180deg);
}

/* Feature Breakdown */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 30px;
}

.feature-box {
    background: linear-gradient(145deg, rgba(30, 41, 59, 0.4), rgba(15, 23, 42, 0.6));
    border: 1px solid rgba(255, 255, 255, 0.03);
    padding: 35px;
    border-radius: 24px;
    position: relative;
    border-left: 4px solid #6366f1;
}

.feature-box h4 {
    color: #f8fafc;
    font-size: 20px;
    margin-bottom: 15px;
}

.feature-box p {
    color: #94a3b8;
    font-size: 15px;
    line-height: 1.7;
}

/* Methodology Section */
.methodology-box {
    background: rgba(99, 102, 241, 0.05);
    border: 1px dashed rgba(99, 102, 241, 0.3);
    padding: 40px;
    border-radius: 30px;
    text-align: center;
    max-width: 900px;
    margin: 40px auto;
}

.methodology-text {
    color: #cbd5e1;
    font-size: 16px;
    font-style: italic;
}

/* Comparison Detail List */
.detail-list {
    list-style: none;
    padding: 0;
}

.detail-item {
    padding: 15px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.detail-label {
    font-weight: 600;
    color: #f8fafc;
}

.detail-value {
    color: #38bdf8;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-title {
        font-size: 36px;
    }
    .comparison-grid {
        grid-template-columns: 1fr;
    }
    .product-card {
        padding: 30px;
    }
}