:root {
    /* Colors */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --dark-bg: #0f0f1e;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);

    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-lg: 18px;
    --font-size-xl: 24px;
    --font-size-2xl: 32px;
    --font-size-3xl: 48px;
    --font-size-4xl: 64px;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 40px rgba(102, 126, 234, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-main);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--dark-bg);
    background-image:
        radial-gradient(at 20% 10%, rgba(102, 126, 234, 0.1) 0px, transparent 50%),
        radial-gradient(at 80% 90%, rgba(118, 75, 162, 0.1) 0px, transparent 50%);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 15, 30, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--card-border);
    padding: var(--spacing-md) 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.logo-img {
    height: 45px;
    width: auto;
    object-fit: contain;
}

.logo-icon {
    font-size: 32px;
}

.logo-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-base);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-base);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: var(--transition-base);
}

.nav-links a:hover {
    color: var(--text-primary);
}

.nav-links a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--spacing-3xl) 0;
    margin-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(102, 126, 234, 0.15) 0%, transparent 50%);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-title {
    font-size: clamp(var(--font-size-3xl), 8vw, var(--font-size-4xl));
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
}

.gradient-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

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

.stat-number {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--primary-gradient);
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-lg);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    box-shadow: var(--shadow-glow);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 60px rgba(102, 126, 234, 0.5);
}

/* Modules Section */
.modules-section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.module-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.module-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-base);
}

.module-card:hover {
    transform: translateY(-5px);
    border-color: rgba(102, 126, 234, 0.5);
    box-shadow: var(--shadow-lg);
}

.module-card:hover::before {
    transform: scaleX(1);
}

.module-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.module-number {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.module-status {
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(102, 126, 234, 0.2);
    border: 1px solid rgba(102, 126, 234, 0.4);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: #667eea;
}

.module-status.locked {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
}

.module-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.module-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.module-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.meta-item svg {
    opacity: 0.7;
}

.module-button {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
}

.module-button:hover {
    background: rgba(102, 126, 234, 0.2);
    border-color: rgba(102, 126, 234, 0.5);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    max-width: 1000px;
    width: 100%;
    max-height: 90vh;
    background: var(--dark-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-xl);
    overflow-y: auto;
    z-index: 1;
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-base);
    z-index: 10;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.modal-close svg {
    stroke: var(--text-primary);
}

.modal-header {
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--card-border);
}

.modal-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%;
    /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.modal-lessons {
    padding: var(--spacing-xl);
}

.modal-lessons h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

.lessons-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.lesson-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-base);
}

.lesson-item:hover {
    background: rgba(102, 126, 234, 0.1);
    border-color: rgba(102, 126, 234, 0.3);
}

.lesson-number {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    border-radius: 50%;
    font-weight: 700;
    font-size: var(--font-size-sm);
}

.lesson-info {
    flex: 1;
}

.lesson-title {
    font-weight: 600;
    margin-bottom: 4px;
}

.lesson-duration {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* About Section */
.about-section {
    padding: var(--spacing-3xl) 0;
    background: rgba(255, 255, 255, 0.02);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.about-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.features-list {
    list-style: none;
    margin-top: var(--spacing-lg);
}

.features-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    color: var(--text-secondary);
}

.features-list li svg {
    stroke: #667eea;
    flex-shrink: 0;
}

.about-image {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.pastor-card {
    text-align: center;
    max-width: 350px;
}

.pastor-info {
    margin-top: var(--spacing-lg);
}

.pastor-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.pastor-title {
    font-size: var(--font-size-lg);
    color: #667eea;
    font-weight: 600;
}

.about-img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--card-border);
}

/* Contact Section */
.contact-section {
    padding: var(--spacing-3xl) 0;
}

.contact-card {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    padding: var(--spacing-2xl);
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-xl);
}

.contact-title {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.contact-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
}

.contact-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-base);
}

.contact-link:hover {
    background: rgba(102, 126, 234, 0.2);
    border-color: rgba(102, 126, 234, 0.5);
}

/* Footer */
.footer {
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid var(--card-border);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-3xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
}

.footer-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-text {
    color: var(--text-secondary);
    line-height: 1.8;
}

.footer-heading {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-base);
}

.footer-links a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--card-border);
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(15, 15, 30, 0.98);
        backdrop-filter: blur(20px);
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        border-top: 1px solid var(--card-border);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition-base);
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .hero {
        margin-top: 60px;
        padding: var(--spacing-2xl) 0;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }

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

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-image {
        order: -1;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .modal-content {
        max-height: 95vh;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .hero-stats {
        justify-content: space-between;
    }

    .stat-item {
        flex: 1;
    }

    .cta-button {
        width: 100%;
        justify-content: center;
    }

    .contact-info {
        flex-direction: column;
    }

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

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content>* {
    animation: fadeInUp 0.6s ease backwards;
}

.hero-title {
    animation-delay: 0.1s;
}

.hero-subtitle {
    animation-delay: 0.2s;
}

.hero-stats {
    animation-delay: 0.3s;
}

.cta-button {
    animation-delay: 0.4s;
}

/* Payment Modal Styles */
.payment-modal-content {
    max-width: 600px;
    padding: 0;
    overflow-y: auto;
}

.payment-header {
    padding: var(--spacing-2xl) var(--spacing-xl) var(--spacing-lg);
    text-align: center;
    background: linear-gradient(180deg, rgba(102, 126, 234, 0.1) 0%, rgba(102, 126, 234, 0.0) 100%);
}

.payment-icon {
    width: 80px;
    height: 80px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: #667eea;
    box-shadow: var(--shadow-lg);
}

.payment-header h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.payment-header p {
    color: var(--text-secondary);
    font-size: var(--font-size-md);
}

.payment-options {
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.payment-card-option,
.payment-paypal-option {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: var(--transition-base);
}

.payment-card-option:hover,
.payment-paypal-option:hover {
    border-color: rgba(102, 126, 234, 0.5);
    box-shadow: var(--shadow-lg);
}

.payment-options h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

.price-tag {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.payment-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--font-size-md);
    cursor: pointer;
    transition: var(--transition-base);
    color: white;
}

.card-btn {
    background: var(--primary-gradient);
    box-shadow: var(--shadow-glow);
}

.card-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
}

.paypal-btn {
    background: #0070ba;
}

.paypal-btn:hover {
    background: #005ea6;
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(0, 112, 186, 0.4);
}

.divider {
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--text-muted);
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--card-border);
}

.divider span {
    padding: 0 10px;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    font-weight: 600;
}

.secure-badges {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.payment-footer {
    padding: var(--spacing-md);
    text-align: center;
    border-top: 1px solid var(--card-border);
    background: rgba(0, 0, 0, 0.2);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}