@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@500;600;700;800&display=swap');

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #0f172a;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --bg-light: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #1e40af 100%);
    --gradient-card: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --card-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.05);
    --card-shadow-hover: 0 20px 40px -10px rgba(37, 99, 235, 0.15);
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
    background-color: var(--bg-light);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6, .navbar-brand {
    font-family: 'Outfit', sans-serif;
}

/* Header Navbar */
.navbar-custom {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #e2e8f0;
}

.brand-title {
    font-weight: 800;
    font-size: 1.6rem;
    color: var(--secondary-color);
}

.brand-title span {
    color: var(--primary-color);
}

/* Hero Section */
.hero-section {
    background: var(--gradient-hero);
    color: #ffffff;
    padding: 90px 0 110px;
    border-radius: 0 0 48px 48px;
    position: relative;
}

.hero-title {
    font-size: 3.25rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: #94a3b8;
    line-height: 1.6;
}

.hero-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 24px;
    padding: 32px;
}

.floating-stat {
    background: #ffffff;
    color: var(--text-main);
    border-radius: 16px;
    padding: 16px 20px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
}

/* Course Cards */
.course-card {
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    background: var(--card-bg);
    box-shadow: var(--card-shadow);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow-hover);
    border-color: rgba(37, 99, 235, 0.3);
}

.course-badge-price {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--secondary-color);
}

.course-badge-discount {
    text-decoration: line-through;
    color: #94a3b8;
    font-size: 0.95rem;
    font-weight: 500;
}

/* Feature Boxes */
.feature-box {
    background: #ffffff;
    border: 1px solid #f1f5f9;
    border-radius: 20px;
    padding: 32px 24px;
    transition: all 0.3s ease;
    box-shadow: var(--card-shadow);
}

.feature-box:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 20px;
}

/* CTA Banner */
.cta-section {
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    border-radius: 32px;
    color: #ffffff;
    padding: 60px 40px;
}

/* Accordion */
.accordion-button:not(.collapsed) {
    color: var(--primary-color);
    background-color: rgba(37, 99, 235, 0.05);
}

/* Footer */
.main-footer {
    background-color: var(--secondary-color);
    color: #94a3b8;
    padding: 70px 0 24px;
}

.main-footer a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.2s ease;
}

.main-footer a:hover {
    color: #ffffff;
}