/*

Fintegro AI - Enhanced Modern Stylesheet
Optimized for Performance & SEO

*/

:root {
    /* Modern Font Family */
    --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

    /* Dark Theme Color Palette */
    --color-background: #0D1117;
    --color-surface: #161B22;
    --color-text: #E6EDF3;
    --color-text-secondary: #8B949E;
    --color-primary: #58A6FF;
    --color-primary-hover: #79B8FF;
    --color-success: #3FB950;
    --color-danger: #F85149;
    --color-border: #30363D;
    --color-btn-primary-text: #FFFFFF;

    /* Gradients & Overlays */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-success) 100%);
    --hero-overlay-color: rgba(13, 17, 23, 0.7);
    --dates-overlay-color: rgba(13, 17, 23, 0.85);

    /* Glassmorphism Effect */
    --glass-bg: rgba(22, 27, 34, 0.7);
    --glass-border-color: rgba(48, 54, 61, 0.5);
    --glass-backdrop-filter: blur(12px);

    /* Sizing & Spacing */
    --space-8: 8px;
    --space-12: 12px;
    --space-16: 16px;
    --space-24: 24px;
    --space-32: 32px;
    --space-48: 48px;
    --space-64: 64px;
    --space-80: 80px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.35);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--space-16);
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }

p {
    margin-bottom: var(--space-16);
    color: var(--color-text-secondary);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-hover);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-24);
}

/* Navbar */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: transparent;
    transition: all var(--transition-normal);
}

#navbar.scrolled {
    background-color: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop-filter);
    -webkit-backdrop-filter: var(--glass-backdrop-filter);
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--glass-border-color);
}

#navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
}

.navbar-brand h2 {
    margin: 0;
    font-size: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-menu {
    display: flex;
    list-style: none;
    gap: var(--space-32);
    align-items: center;
}

.navbar-menu a {
    color: var(--color-text);
    font-weight: 500;
    position: relative;
    transition: color var(--transition-fast);
}

.navbar-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-normal);
}

.navbar-menu a:hover::after {
    width: 100%;
}

/* Buttons */
.cta-btn {
    background: var(--gradient-primary);
    color: var(--color-btn-primary-text);
    padding: var(--space-12) var(--space-32);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    min-height: 48px; /* Touch target size */
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

/* Hero Section */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--hero-overlay-color);
    z-index: -1;
}

.hero-content {
    text-align: center;
    z-index: 1;
    padding: var(--space-32);
}

.hero-text h1 {
    color: var(--color-text);
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
    margin-bottom: var(--space-32);
}

/* Countdown Timer */
.countdown-section {
    margin: var(--space-48) 0;
}

.countdown-label {
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-bottom: var(--space-24);
    font-weight: 600;
}

.countdown-timer {
    display: flex;
    justify-content: center;
    gap: var(--space-24);
    flex-wrap: wrap;
}

.time-box {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop-filter);
    -webkit-backdrop-filter: var(--glass-backdrop-filter);
    border: 1px solid var(--glass-border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-24);
    min-width: 100px;
    box-shadow: var(--shadow-md);
}

.time-value {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    transition: transform var(--transition-fast);
}

.time-label {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: var(--space-8);
}

/* Sections */
.section-padding {
    padding: var(--space-80) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--space-48);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text);
    margin-bottom: var(--space-48);
}

/* Course Grid */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-32);
}

.course-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-32);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.course-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.course-icon {
    font-size: 3rem;
    margin-bottom: var(--space-16);
}

.course-item h3 {
    color: var(--color-text);
    margin-bottom: var(--space-16);
}

.course-item ul {
    list-style: none;
    padding-left: 0;
}

.course-item li {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-12);
    padding-left: var(--space-24);
    position: relative;
}

.course-item li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: 700;
}

/* Bonuses Section */
.bonuses-section {
    background: var(--color-surface);
}

.bonuses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-32);
}

.bonus-card {
    background: var(--color-background);
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-32);
    text-align: center;
    transition: all var(--transition-normal);
}

.bonus-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.bonus-icon {
    font-size: 3rem;
    margin-bottom: var(--space-16);
}

.bonus-card h3 {
    color: var(--color-primary);
    margin-bottom: var(--space-12);
}

.bonus-card p {
    color: var(--color-text);
}

/* Pricing Section */
.pricing-card {
    max-width: 600px;
    margin: 0 auto;
    background: var(--color-surface);
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-48);
    text-align: center;
}

.price-header {
    margin-bottom: var(--space-32);
}

.original-price {
    font-size: 1.5rem;
    color: var(--color-text-secondary);
    text-decoration: line-through;
    margin-bottom: var(--space-12);
}

.current-price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-success);
    margin-bottom: var(--space-16);
}

.discount-badge {
    display: inline-block;
    background: var(--color-danger);
    color: white;
    padding: var(--space-8) var(--space-24);
    border-radius: var(--radius-md);
    font-weight: 600;
}

/* About/Instructor Section */
.instructor-card {
    display: flex;
    gap: var(--space-48);
    align-items: center;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-48);
    max-width: 900px;
    margin: 0 auto;
}

.instructor-image {
    width: 250px;
    height: 300px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.instructor-info h3 {
    color: var(--color-primary);
    margin-bottom: var(--space-8);
}

.instructor-title {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-24);
}

.instructor-credentials {
    list-style: none;
    padding: 0;
}

.instructor-credentials li {
    color: var(--color-text);
    margin-bottom: var(--space-12);
    font-size: 1.125rem;
}

/* Testimonials Section */
.testimonials-section {
    background: var(--color-surface);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-32);
}

.testimonial-card {
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-32);
    transition: all var(--transition-normal);
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.testimonial-rating {
    font-size: 1.25rem;
    margin-bottom: var(--space-16);
}

.testimonial-card blockquote {
    margin: 0;
}

.testimonial-card p {
    font-style: italic;
    color: var(--color-text);
    margin-bottom: var(--space-16);
}

.testimonial-card cite {
    color: var(--color-primary);
    font-style: normal;
    font-weight: 600;
}

/* Contact & Social Links */
.contact-info {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--space-24);
    margin-top: var(--space-32);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    color: var(--color-primary);
    transition: all var(--transition-normal);
}

.social-links a:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

/* Footer */
.footer {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: var(--space-64) 0 var(--space-32);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-48);
    margin-bottom: var(--space-48);
}

.footer-section h3,
.footer-section h4 {
    color: var(--color-primary);
    margin-bottom: var(--space-16);
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section li {
    margin-bottom: var(--space-12);
}

.footer-section a {
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

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

.share-buttons {
    display: flex;
    gap: var(--space-12);
    flex-wrap: wrap;
}

.share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    color: var(--color-primary);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.share-btn:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-32);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-secondary);
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: var(--space-24);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-48);
    max-width: 500px;
    width: 100%;
    position: relative;
    box-shadow: var(--shadow-lg);
    max-height: 90vh;
    overflow-y: auto;
}

.modal-close {
    position: absolute;
    top: var(--space-16);
    right: var(--space-16);
    background: transparent;
    border: none;
    font-size: 2rem;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: color var(--transition-fast);
    width: 40px;
    height: 40px;
}

.modal-close:hover {
    color: var(--color-danger);
}

.modal-content h2 {
    color: var(--color-primary);
    margin-bottom: var(--space-32);
}

/* Form Styles */
.form-group {
    margin-bottom: var(--space-24);
}

.form-group label {
    display: block;
    color: var(--color-text);
    margin-bottom: var(--space-8);
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: var(--space-12) var(--space-16);
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: 1rem;
    transition: all var(--transition-fast);
    min-height: 48px;
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.1);
}

/* Success Modal */
.success-content {
    text-align: center;
}

.success-icon {
    font-size: 4rem;
    margin-bottom: var(--space-24);
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar-menu {
        display: none;
    }

    .instructor-card {
        flex-direction: column;
        text-align: center;
    }

    .instructor-image {
        width: 200px;
        height: 240px;
    }

    .course-grid,
    .bonuses-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .countdown-timer {
        gap: var(--space-16);
    }

    .time-box {
        min-width: 80px;
        padding: var(--space-16);
    }

    .time-value {
        font-size: 2rem;
    }

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

    .social-links,
    .share-buttons {
        justify-content: center;
    }
}

/* Performance Optimizations */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .cta-btn,
    .modal,
    .footer {
        display: none;
    }
}