:root {
    --bg-color: #050810;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --primary-color: #f97316;
    --primary-gradient: linear-gradient(135deg, #fb923c, #ea580c);
    --card-bg: #0f1522;
    --card-border: #1e293b;
    --red: #ef4444;
    --yellow: #facc15;
    --font-bn: 'Hind Siliguri', sans-serif;
    --font-en: 'Inter', sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-bn);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.3;
}

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

.text-center {
    text-align: center;
}

.highlight {
    color: var(--primary-color);
}

.highlight-red {
    color: var(--red);
}

.highlight-yellow {
    color: var(--yellow);
}

.text-yellow {
    color: var(--yellow);
}

.section-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
    background-color: rgba(255, 255, 255, 0.1);
}

.section-badge.bg-red {
    background-color: rgba(239, 68, 68, 0.2);
    color: var(--red);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 50px;
}

.btn-primary {
    display: inline-block;
    background: var(--primary-gradient);
    color: white;
    text-decoration: none;
    padding: 16px 40px;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 15px rgba(234, 88, 12, 0.4);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(234, 88, 12, 0.6);
}

.btn-primary .btn-text {
    display: block;
    font-size: 20px;
    font-weight: 700;
}

.btn-primary .btn-subtext {
    display: block;
    font-size: 14px;
    opacity: 0.9;
    font-weight: 400;
}

/* Hero Section */
.hero-section {
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.badge-text {
    display: inline-flex;
    align-items: center;
    color: var(--yellow);
    font-family: var(--font-en);
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 2px;
    margin-bottom: 20px;
    background: rgba(250, 204, 21, 0.1);
    padding: 6px 12px;
    border-radius: 4px;
    border: 1px solid rgba(250, 204, 21, 0.2);
}

.badge-text .dot {
    width: 8px;
    height: 8px;
    background-color: var(--yellow);
    border-radius: 50%;
    margin-right: 8px;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-bottom: 30px;
}

.rating .stars {
    color: var(--yellow);
    font-size: 20px;
    letter-spacing: 2px;
    margin-bottom: 4px;
}

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

.guarantee-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 10px 20px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
}

.hero-image-wrapper {
    flex: 1;
    position: relative;
    display: flex;
    justify-content: flex-end;
}

.image-glow {
    position: absolute;
    width: 300px;
    height: 400px;
    background: var(--primary-color);
    filter: blur(150px);
    opacity: 0.2;
    z-index: -1;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.hero-image {
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    border: 1px solid rgba(255,255,255,0.1);
}

/* Why Section */
.why-section {
    padding: 80px 0;
    background: linear-gradient(to bottom, transparent, rgba(255,255,255,0.02));
}

.why-text {
    max-width: 800px;
    margin: 0 auto;
    font-size: 18px;
    color: var(--text-secondary);
}

.why-text p {
    margin-bottom: 20px;
}

/* Features Section */
.features-section {
    padding: 80px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 30px;
    border-radius: 12px;
    transition: transform 0.3s, border-color 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
}

.highlighted-card {
    border-color: rgba(234, 88, 12, 0.4);
    background: linear-gradient(to bottom right, var(--card-bg), rgba(234, 88, 12, 0.05));
}

.feature-icon {
    font-size: 24px;
    width: 50px;
    height: 50px;
    background: rgba(255,255,255,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    margin-bottom: 20px;
}

.feature-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    font-family: var(--font-en);
}

.feature-desc {
    color: var(--text-secondary);
    font-size: 15px;
}

/* Preview Section */
.preview-section {
    padding: 80px 0;
    background-color: #0a0d16;
}

.preview-slider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.slider-btn {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s;
}

.slider-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.preview-image-container {
    flex: 1;
    background: var(--card-bg);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--card-border);
}

.preview-image {
    width: 100%;
    border-radius: 8px;
}

/* Author Section */
.author-section {
    padding: 80px 0;
}

.author-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 40px;
    display: flex;
    gap: 40px;
    align-items: center;
}

.author-image-wrapper {
    position: relative;
    flex-shrink: 0;
}

.author-image {
    width: 250px;
    height: 250px;
    border-radius: 12px;
    object-fit: cover;
    border: 1px solid rgba(255,255,255,0.1);
}

.author-name-tag {
    position: absolute;
    bottom: 20px;
    left: -10px;
    background: var(--primary-color);
    color: white;
    padding: 4px 12px;
    font-weight: 600;
    border-radius: 4px;
    font-size: 14px;
}

.author-title-tag {
    position: absolute;
    bottom: -5px;
    left: -10px;
    background: #000;
    color: var(--yellow);
    padding: 2px 10px;
    font-size: 12px;
    border-radius: 4px;
    border: 1px solid rgba(250, 204, 21, 0.3);
}

.author-info {
    flex: 1;
}

.author-name {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
}

.author-bio {
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-size: 16px;
}

.author-stats {
    display: flex;
    gap: 40px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    font-family: var(--font-en);
    margin-bottom: 4px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 14px;
}

/* FAQ Section */
.faq-section {
    padding: 80px 0;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: none;
    border: none;
    color: white;
    font-size: 18px;
    font-family: var(--font-bn);
    font-weight: 600;
    cursor: pointer;
    text-align: left;
}

.faq-icon {
    font-size: 24px;
    color: var(--text-secondary);
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    color: var(--text-secondary);
}

.faq-item.active .faq-answer {
    padding: 0 20px 20px;
    max-height: 200px;
}

/* Checkout Section */
.checkout-section {
    padding: 80px 0;
}

.checkout-card {
    background: linear-gradient(180deg, rgba(15, 21, 34, 1) 0%, rgba(10, 14, 22, 1) 100%);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 20px;
    padding: 50px;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    box-shadow: 0 30px 60px rgba(0,0,0,0.5);
}

.discount-badge {
    position: absolute;
    top: 0;
    right: 40px;
    background: var(--red);
    color: white;
    padding: 8px 24px;
    border-radius: 0 0 8px 8px;
    font-weight: 700;
    font-size: 14px;
}

.checkout-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
}

.checkout-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-size: 18px;
}

.checkout-content {
    display: flex;
    gap: 40px;
    background-color: rgba(0,0,0,0.2);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 40px;
}

.checkout-features {
    flex: 1;
}

.checkout-features-title {
    font-size: 18px;
    margin-bottom: 20px;
    font-weight: 600;
}

.checkout-list {
    list-style: none;
}

.checkout-list li {
    margin-bottom: 12px;
    padding-left: 28px;
    position: relative;
    color: var(--text-secondary);
}

.checkout-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--yellow);
    font-weight: bold;
}

.checkout-price-box {
    width: 250px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border-left: 1px dashed var(--card-border);
    padding-left: 40px;
}

.price-original {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 8px;
}

.price-current {
    font-size: 48px;
    font-weight: 700;
    font-family: var(--font-en);
    margin-bottom: 8px;
}

.delivery-info {
    color: var(--primary-color);
    font-size: 14px;
    font-weight: 600;
}

/* Footer */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--card-border);
}

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

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    margin: 0 10px;
}

.footer-links a:hover {
    color: white;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.contact-btn {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    transition: all 0.2s;
}

.contact-btn:hover {
    background-color: rgba(255,255,255,0.05);
}

.copyright {
    color: var(--text-secondary);
    font-size: 14px;
    font-family: var(--font-en);
}

/* Responsive */
@media (max-width: 992px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-actions {
        justify-content: center;
        flex-direction: column;
        gap: 20px;
    }
    
    .author-card {
        flex-direction: column;
        text-align: center;
    }
    
    .author-image-wrapper {
        margin: 0 auto;
    }
    
    .author-stats {
        justify-content: center;
    }
    
    .checkout-content {
        flex-direction: column;
    }
    
    .checkout-price-box {
        width: 100%;
        border-left: none;
        border-top: 1px dashed var(--card-border);
        padding-left: 0;
        padding-top: 30px;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .checkout-title {
        font-size: 28px;
    }
}