/* ==========================================================================
   Base Styles & Variables
   ========================================================================== */
:root {
    /* Colors */
    --clr-primary: #f5a425;
    --clr-primary-dark: #d98a12;
    --clr-secondary: #162239;
    --clr-accent: #ffbe53;
    
    --clr-bg-dark: #162239;
    --clr-bg-card: #1f2d48;
    --clr-text-main: #FFFFFF;
    --clr-text-muted: #B8C5D6;
    
    --clr-white: #FFFFFF;
    --clr-glass: rgba(255, 255, 255, 0.06);
    --clr-glass-border: rgba(255, 255, 255, 0.12);
    
    /* Typography */
    --font-main: 'Outfit', sans-serif;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--clr-white) 0%, var(--clr-text-muted) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-header p {
    color: var(--clr-text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================================================
   Typography & Utilities
   ========================================================================== */
.text-gradient {
    background: linear-gradient(135deg, var(--clr-primary) 0%, #ffbe53 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-primary-dark) 100%);
    color: var(--clr-white);
    box-shadow: 0 4px 15px rgba(245, 164, 37, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 164, 37, 0.55);
}

.btn-outline {
    background: transparent;
    color: var(--clr-white);
    border: 1px solid var(--clr-glass-border);
}

.btn-outline:hover {
    background: var(--clr-glass);
    border-color: var(--clr-primary);
}

.btn-outline-light {
    background: transparent;
    color: var(--clr-white);
    border: 2px solid var(--clr-white);
}

.btn-outline-light:hover {
    background: var(--clr-white);
    color: var(--clr-secondary);
}

.btn-glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--clr-white);
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-text {
    background: transparent;
    color: var(--clr-primary);
    padding: 0;
}

.btn-text:hover {
    color: var(--clr-accent);
    gap: 0.75rem;
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.25rem 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(22, 34, 57, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--clr-glass-border);
    padding: 1rem 0;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--clr-white);
    letter-spacing: -0.5px;
}

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

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--clr-text-main);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
}

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

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

.nav-links a:hover,
.nav-links a.active {
    color: var(--clr-white);
}

.nav-actions {
    display: flex;
    gap: 1rem;
}

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

#hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    z-index: 1;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(12, 18, 40, 0.85) 0%, rgba(22, 34, 57, 0.75) 100%);
    z-index: 2;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    padding: 0 2rem;
    position: relative;
    z-index: 3;
    animation: fadeUp 1s ease forwards;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(245, 164, 37, 0.12);
    border: 1px solid rgba(245, 164, 37, 0.3);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    color: var(--clr-primary);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--clr-text-muted);
    margin-bottom: 2.5rem;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* ==========================================================================
   Features Section
   ========================================================================== */
.features {
    padding: 8rem 0;
    background: var(--clr-bg-dark);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--clr-bg-card);
    padding: 3rem 2rem;
    border-radius: 20px;
    border: 1px solid var(--clr-glass-border);
    transition: var(--transition);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: rgba(245, 164, 37, 0.35);
    box-shadow: 0 20px 40px rgba(12, 18, 40, 0.5);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: rgba(245, 164, 37, 0.12);
    color: var(--clr-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin: 0 auto 1.5rem;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    background: var(--clr-primary);
    color: #162239;
    transform: scale(1.1);
}

.feature-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--clr-white);
}

.feature-card p {
    color: var(--clr-text-muted);
    font-size: 0.95rem;
}

/* ==========================================================================
   Courses Section
   ========================================================================== */
.courses {
    padding: 6rem 0 10rem;
    background: linear-gradient(180deg, var(--clr-bg-dark) 0%, #10192d 100%);
}

.course-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--clr-bg-card);
    border: 1px solid var(--clr-glass-border);
    color: var(--clr-text-muted);
    padding: 0.5rem 1.25rem;
    border-radius: 50px;
    font-family: inherit;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--clr-primary);
    color: var(--clr-white);
    border-color: var(--clr-primary);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
}

.course-card {
    background: var(--clr-bg-card);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--clr-glass-border);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.course-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(12, 18, 40, 0.5);
    border-color: rgba(245, 164, 37, 0.3);
}

.course-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.course-card:hover .course-image img {
    transform: scale(1.05);
}

.course-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(22, 34, 57, 0.88);
    backdrop-filter: blur(5px);
    color: var(--clr-primary);
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid rgba(245, 164, 37, 0.25);
}

.course-content {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.course-content h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    color: var(--clr-white);
}

.course-content p {
    color: var(--clr-text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.course-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.duration {
    color: var(--clr-text-muted);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ==========================================================================
   Call To Action
   ========================================================================== */
.cta {
    padding: 6rem 0;
    background: linear-gradient(135deg, #162239 0%, #0c1228 100%);
    position: relative;
    overflow: hidden;
}

/* Add some abstract shapes to CTA background */
.cta::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -10%;
    width: 50%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    transform: rotate(30deg);
}

.cta-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: 2.5rem;
    color: var(--clr-white);
    margin-bottom: 1rem;
}

.cta-content p {
    color: rgba(255,255,255,0.8);
    font-size: 1.1rem;
    max-width: 500px;
}

.cta-actions {
    display: flex;
    gap: 1rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background: #0c1228;
    padding-top: 5rem;
    border-top: 1px solid var(--clr-glass-border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-logo {
    display: inline-block;
    margin-bottom: 1.5rem;
}

.footer-desc {
    color: var(--clr-text-muted);
    margin-bottom: 2rem;
    font-size: 0.95rem;
    max-width: 300px;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--clr-bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--clr-text-main);
    border: 1px solid var(--clr-glass-border);
}

.social-links a:hover {
    background: var(--clr-primary);
    color: #162239;
    border-color: var(--clr-primary);
    transform: translateY(-3px);
}

.footer-col h3 {
    color: var(--clr-white);
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-col a {
    color: var(--clr-text-muted);
    font-size: 0.95rem;
}

.footer-col a:hover {
    color: var(--clr-primary);
    padding-left: 5px;
}

.contact-info li {
    color: var(--clr-text-muted);
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    font-size: 0.95rem;
}

.contact-info i {
    color: var(--clr-primary);
    margin-top: 4px;
}

.footer-bottom {
    padding: 2rem 0;
    border-top: 1px solid rgba(255,255,255,0.05);
    text-align: center;
    color: rgba(255,255,255,0.4);
    font-size: 0.9rem;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 992px) {
    .cta-container {
        flex-direction: column;
        text-align: center;
        gap: 3rem;
    }
    
    .cta-content p {
        margin: 0 auto;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links, .nav-actions {
        display: none; /* In a real app, implement a hamburger menu here */
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}