/* Modern Hackein Design System */
:root {
    --primary-red: #ff0000;
    --primary-blue: #007bff;
    --bg-dark: #050505;
    --card-bg: rgba(20, 20, 20, 0.7);
    --text-white: #ffffff;
    --text-gray: #b0b0b0;
    --glass-border: rgba(255, 255, 255, 0.1);
    --red-glow: rgba(255, 0, 0, 0.3);
    --blue-glow: rgba(0, 123, 255, 0.3);
    --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

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

body {
    font-family: 'Cairo', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Glassmorphism Utility */
.glass {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
}

/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-up {
    animation: fadeInUp 0.8s ease forwards;
}

/* Header Enhancements */
.header {
    background: rgba(0, 0, 0, 0.8) !important;
    border-bottom: 1px solid var(--glass-border) !important;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

/* Course Page Specifics */
.course-hero {
    padding: 160px 0 80px;
    text-align: center;
    background: radial-gradient(circle at center, #111 0%, #050505 100%);
}

.course-logo-large {
    width: 180px;
    height: 180px;
    object-fit: cover;
    border-radius: 30px;
    margin-bottom: 30px;
    border: 2px solid var(--glass-border);
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

.card-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.badge-red { background: var(--primary-red); color: white; }
.badge-blue { background: var(--primary-blue); color: white; }

.card-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.card-desc {
    color: var(--text-gray);
    font-size: 1.1rem;
    margin: 0 auto 30px;
    line-height: 1.8;
    text-align: justify;
    text-align-last: center;
}

.curriculum-section {
    padding: 60px 0;
}

.curriculum-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: start;
}

.accordion-modern {
    margin-top: 20px;
}

.accordion-item-modern {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 15px;
    margin-bottom: 15px;
    overflow: hidden;
}

.accordion-header-modern {
    padding: 20px 25px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.accordion-header-modern h3 {
    font-size: 1.1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.accordion-content-modern {
    padding: 0 25px 25px;
    color: var(--text-gray);
    border-top: 1px solid var(--glass-border);
    padding-top: 20px;
}

.accordion-content-modern ul {
    list-style: none;
    margin-top: 15px;
}

.accordion-content-modern li {
    margin-bottom: 10px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.95rem;
}

.accordion-content-modern li::before {
    content: '→';
    color: var(--primary-red);
    font-weight: bold;
    flex-shrink: 0;
}

.btn-modern {
    padding: 14px 30px;
    border-radius: 12px;
    text-align: center;
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition);
    display: inline-block;
}

.btn-red { background: var(--primary-red); color: white; }
.btn-blue { background: var(--primary-blue); color: white; }

.cert-card-modern {
    position: sticky;
    top: 100px;
    padding: 30px;
    text-align: center;
}

.cert-img-modern {
    width: 100%;
    border-radius: 15px;
    margin: 20px 0;
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}

/* Responsive */
@media (max-width: 992px) {
    .curriculum-grid {
        grid-template-columns: 1fr;
    }
    
    .cert-card-modern {
        position: static;
        margin-top: 40px;
    }
    
    .card-title {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .course-hero {
        padding: 120px 0 60px;
    }
    
    .course-logo-large {
        width: 140px;
        height: 140px;
    }
    
    .card-title {
        font-size: 1.8rem;
    }
    
    .card-desc {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .card-title {
        font-size: 1.5rem;
    }
    
    .accordion-header-modern {
        padding: 15px;
    }
    
    .accordion-header-modern h3 {
        font-size: 1rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    
    .phase-tag {
        margin-left: 0;
    }
}