/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1a1a2e;
    background: #fff;
}

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

/* Header */
.header {
    background: #fff;
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: #1a1a2e;
}

.logo span {
    background: linear-gradient(135deg, #3b82f6, #22c55e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-cta {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: #fff;
    padding: 10px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
}

.header-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #1a1a2e 0%, #2d2d44 100%);
    color: #fff;
    padding: 140px 0 80px;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    margin-bottom: 24px;
    color: #a0a0a0;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #a0a0a0;
    max-width: 700px;
    margin: 0 auto 40px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 40px;
    flex-wrap: wrap;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stat {
    text-align: center;
    flex: 1;
    min-width: 180px;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, #3b82f6, #22c55e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    color: #a0a0a0;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.btn-outline {
    background: transparent;
    border: 2px solid #3b82f6;
    color: #3b82f6;
}

.btn-outline:hover {
    background: #3b82f6;
    color: #fff;
}

.btn-large {
    padding: 18px 40px;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
    text-align: center;
}

/* Problem Section */
.problem {
    padding: 80px 0;
    background: #f8fafc;
}

.problem h2, .solution h2, .learn h2, .pricing h2, .faq h2, .final-cta h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.section-subtitle {
    text-align: center;
    color: #64748b;
    font-size: 1.1rem;
    margin-bottom: 48px;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 48px;
}

.problem-card {
    background: #fff;
    padding: 32px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.problem-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #fee2e2, #fecaca);
    color: #dc2626;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.5rem;
    font-weight: 800;
}

.problem-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.problem-card p {
    color: #64748b;
}

/* Solution/Courses Section */
.solution {
    padding: 80px 0;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
    margin-top: 48px;
}

.course-card {
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.course-card:hover {
    transform: translateY(-5px);
}

.course-card.water .course-header {
    background: linear-gradient(135deg, #3b82f6, #1e40af);
}

.course-card.mold .course-header {
    background: linear-gradient(135deg, #22c55e, #15803d);
}

.course-header {
    padding: 30px;
    color: #fff;
}

.course-badge {
    display: inline-block;
    background: rgba(255,255,255,0.2);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    margin-bottom: 12px;
}

.course-header h3 {
    font-size: 1.75rem;
    margin-bottom: 8px;
}

.course-header p {
    opacity: 0.9;
}

.course-body {
    padding: 30px;
}

.course-features {
    list-style: none;
    margin-bottom: 24px;
}

.course-features li {
    padding: 8px 0;
    padding-left: 28px;
    position: relative;
    color: #475569;
}

.course-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #22c55e;
    font-weight: 600;
}

.course-modules {
    background: #f8fafc;
    padding: 16px;
    border-radius: 10px;
    font-size: 0.9rem;
}

.course-modules strong {
    display: block;
    margin-bottom: 6px;
}

.course-modules span {
    color: #64748b;
}

.course-footer {
    padding: 24px 30px;
    border-top: 1px solid #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.course-price {
    font-size: 2rem;
    font-weight: 800;
    color: #1a1a2e;
}

/* What You'll Learn Section */
.learn {
    padding: 80px 0;
    background: #f8fafc;
}

.learn-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 48px;
}

.learn-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.learn-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: #fff;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.learn-item h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.learn-item p {
    color: #64748b;
    font-size: 0.95rem;
}

/* Pricing Section */
.pricing {
    padding: 80px 0;
}

.early-bird-banner {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    border: 2px solid #f59e0b;
    border-radius: 12px;
    padding: 20px 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 48px;
    flex-wrap: wrap;
    gap: 16px;
}

.early-bird-badge {
    background: #f59e0b;
    color: #fff;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.early-bird-text {
    font-size: 1.1rem;
    color: #92400e;
}

.spots-left {
    color: #92400e;
    font-size: 0.95rem;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 48px;
}

.pricing-card {
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s;
}

.pricing-card:hover {
    transform: translateY(-5px);
}

.pricing-card.featured {
    border: 3px solid #3b82f6;
    position: relative;
}

.featured-badge {
    position: absolute;
    top: -1px;
    left: 50%;
    transform: translateX(-50%);
    background: #3b82f6;
    color: #fff;
    padding: 6px 20px;
    border-radius: 0 0 10px 10px;
    font-size: 0.8rem;
    font-weight: 700;
}

.pricing-header {
    padding: 30px;
    color: #fff;
    text-align: center;
}

.pricing-header.water-bg {
    background: linear-gradient(135deg, #3b82f6, #1e40af);
}

.pricing-header.mold-bg {
    background: linear-gradient(135deg, #22c55e, #15803d);
}

.pricing-header.bundle-bg {
    background: linear-gradient(135deg, #3b82f6, #22c55e);
}

.pricing-header h3 {
    font-size: 1.5rem;
    margin-bottom: 4px;
}

.pricing-header p {
    opacity: 0.9;
    font-size: 0.95rem;
}

.pricing-body {
    padding: 30px;
}

.price {
    text-align: center;
    margin-bottom: 24px;
}

.price-original {
    font-size: 1.1rem;
    color: #94a3b8;
    text-decoration: line-through;
    display: block;
}

.price-amount {
    font-size: 3rem;
    font-weight: 800;
    color: #1a1a2e;
}

.price-period {
    font-size: 1rem;
    color: #64748b;
}

.savings-badge {
    background: #dcfce7;
    color: #16a34a;
    text-align: center;
    padding: 8px 16px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 24px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 24px;
}

.pricing-features li {
    padding: 10px 0;
    padding-left: 28px;
    position: relative;
    color: #475569;
    border-bottom: 1px solid #f1f5f9;
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #22c55e;
    font-weight: 600;
}

/* Early Bird Card */
.early-bird-card {
    background: linear-gradient(135deg, #1a1a2e, #2d2d44);
    border-radius: 20px;
    padding: 40px;
    color: #fff;
}

.early-bird-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 30px;
}

.early-bird-tag {
    display: inline-block;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.early-bird-left h3 {
    font-size: 1.75rem;
    margin-bottom: 8px;
}

.early-bird-left p {
    color: #a0a0a0;
}

.early-bird-right {
    text-align: center;
}

.early-bird-price .original {
    font-size: 1.25rem;
    color: #94a3b8;
    text-decoration: line-through;
    display: block;
}

.early-bird-price .current {
    font-size: 3rem;
    font-weight: 800;
    display: block;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #f59e0b, #fbbf24);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* FAQ Section */
.faq {
    padding: 80px 0;
    background: #f8fafc;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 30px;
    margin-top: 48px;
}

.faq-item {
    background: #fff;
    padding: 28px;
    border-radius: 16px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.faq-item h4 {
    font-size: 1.1rem;
    margin-bottom: 12px;
    color: #1a1a2e;
}

.faq-item p {
    color: #64748b;
    font-size: 0.95rem;
}

/* Final CTA */
.final-cta {
    padding: 100px 0;
    background: linear-gradient(135deg, #1a1a2e, #2d2d44);
    color: #fff;
    text-align: center;
}

.final-cta h2 {
    margin-bottom: 16px;
}

.final-cta p {
    color: #a0a0a0;
    font-size: 1.2rem;
    margin-bottom: 32px;
}

/* Footer */
.footer {
    background: #0f0f1a;
    color: #a0a0a0;
    padding: 40px 0;
    text-align: center;
}

.footer .logo {
    color: #fff;
    margin-bottom: 16px;
    display: inline-block;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.25rem;
    }

    .hero-stats {
        gap: 30px;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .courses-grid {
        grid-template-columns: 1fr;
    }

    .faq-grid {
        grid-template-columns: 1fr;
    }

    .early-bird-banner {
        flex-direction: column;
        text-align: center;
    }

    .early-bird-content {
        flex-direction: column;
        text-align: center;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }
}