/* Courses Page Specific Styles */

/* Fix for anchor links being hidden behind fixed navbar */
html {
    scroll-padding-top: 120px; /* Accounts for navbar height + top position + some padding */
}

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

/* Courses Section */
.courses {
    padding: 6rem 0;
    background: var(--bg-primary);
}

.courses-container {
    width: 100%;
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.courses-showcase {
    position: relative;
    width: 400px;
    height: 350px;
    margin: 0 auto;
    perspective: 1000px;
}

.course-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    text-align: center;
    position: absolute;
    width: 160px;
    height: 140px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform-origin: center;
    will-change: transform;
    text-decoration: none;
    color: inherit;
    display: block;
}

.course-card:visited {
    color: inherit;
}

.beginner-card {
    top: 10px;
    left: 0px;
    transform: rotate(-8deg);
    animation: float1 7s ease-in-out infinite;
    z-index: 4;
}

.intermediate-card {
    top: 30px;
    right: 0px;
    transform: rotate(12deg);
    animation: float2 6s ease-in-out infinite;
    z-index: 3;
}

.advanced-card {
    bottom: 60px;
    left: 30px;
    transform: rotate(5deg);
    animation: float3 8s ease-in-out infinite;
    z-index: 2;
}

.elite-card {
    bottom: 10px;
    right: 30px;
    transform: rotate(-15deg);
    animation: float4 5.5s ease-in-out infinite;
    z-index: 1;
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: 1rem;
    z-index: -1;
}

.beginner-card::before {
    background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
}

.intermediate-card::before {
    background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
}

.advanced-card::before {
    background: linear-gradient(135deg, #ef4444 0%, #f87171 100%);
}

.elite-card::before {
    background: linear-gradient(135deg, #8b5cf6 0%, #a78bfa 100%);
}

.course-card:hover {
    transform: translateY(-15px) scale(1.08);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
    border-color: var(--accent-primary);
    animation-play-state: paused;
}

.beginner-card:hover {
    transform: rotate(-8deg) translateY(-15px) scale(1.08);
    box-shadow: 0 25px 50px rgba(0, 132, 255, 0.25);
}

.intermediate-card:hover {
    transform: rotate(12deg) translateY(-15px) scale(1.08);
    box-shadow: 0 25px 50px rgba(16, 185, 129, 0.25);
}

.advanced-card:hover {
    transform: rotate(5deg) translateY(-15px) scale(1.08);
    box-shadow: 0 25px 50px rgba(245, 158, 11, 0.25);
}

.elite-card:hover {
    transform: rotate(-15deg) translateY(-15px) scale(1.08);
    box-shadow: 0 25px 50px rgba(168, 85, 247, 0.25);
}

.course-card:active {
    transform: scale(0.95);
    transition: all 0.1s ease;
}

.beginner-card:active {
    transform: rotate(-8deg) scale(0.95);
}

.intermediate-card:active {
    transform: rotate(12deg) scale(0.95);
}

.advanced-card:active {
    transform: rotate(5deg) scale(0.95);
}

.elite-card:active {
    transform: rotate(-15deg) scale(0.95);
}

/* Ripple effect for clicks */
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(0, 132, 255, 0.3);
    transform: scale(0);
    animation: ripple-animation 0.6s linear;
    pointer-events: none;
}

@keyframes ripple-animation {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

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

.card-icon {
    width: 2rem;
    height: 2rem;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 0.75rem;
}

.beginner-card .card-icon {
    background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
}

.intermediate-card .card-icon {
    background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
}

.advanced-card .card-icon {
    background: linear-gradient(135deg, #ef4444 0%, #f87171 100%);
}

.elite-card .card-icon {
    background: linear-gradient(135deg, #8b5cf6 0%, #a78bfa 100%);
}

.card-icon i {
    color: white;
    font-size: 1rem;
}

.course-card h4 {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.course-card p {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Course Tiers */
.course-tier {
    margin-bottom: 6rem;
}

.course-tier:last-child {
    margin-bottom: 0;
}

.tier-header {
    text-align: center;
    margin-bottom: 3rem;
}

.tier-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tier-badge.beginner {
    background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    color: white;
}

.tier-badge.intermediate {
    background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
    color: white;
}

.tier-badge.advanced {
    background: linear-gradient(135deg, #ef4444 0%, #f87171 100%);
    color: white;
}

.tier-badge.elite {
    background: linear-gradient(135deg, #8b5cf6 0%, #a78bfa 100%);
    color: white;
}

.tier-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.tier-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 100%;
}

/* Specific styling for Build Your Skills (Intermediate) section to be 2x2 */
#intermediate .courses-grid {
    grid-template-columns: repeat(2, 1fr);
    max-width: 800px;
    margin: 0 auto;
}

.course-category {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.premium-course {
    border: 2px solid var(--accent-primary);
    background: linear-gradient(135deg, var(--bg-secondary) 0%, rgba(0, 132, 255, 0.02) 100%);
}

.premium-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--accent-gradient);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.course-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.course-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.course-category:hover::before {
    transform: scaleX(1);
}

.course-header {
    margin-bottom: 1.5rem;
}

.course-icon {
    width: 3rem;
    height: 3rem;
    background: var(--accent-gradient);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.course-icon i {
    color: white;
    font-size: 1.5rem;
}

.course-category h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.course-category p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.course-skills {
    list-style: none;
    padding: 0;
}

/* Removed redundant rule - using .skill-item instead */

/* Removed list decorations */

.skill-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Removed check icon styling as decorations are removed */

.course-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.course-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

/* Stats Section */
.stats {
    background: var(--bg-secondary);
    padding: 4rem 2rem;
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: var(--bg-primary);
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Floating Animations */
@keyframes float1 {
    0%, 100% {
        transform: rotate(-8deg) translateY(0px);
    }
    50% {
        transform: rotate(-8deg) translateY(-15px);
    }
}

@keyframes float2 {
    0%, 100% {
        transform: rotate(12deg) translateY(0px);
    }
    50% {
        transform: rotate(12deg) translateY(-12px);
    }
}

@keyframes float3 {
    0%, 100% {
        transform: rotate(5deg) translateY(0px);
    }
    50% {
        transform: rotate(5deg) translateY(-18px);
    }
}

@keyframes float4 {
    0%, 100% {
        transform: rotate(-15deg) translateY(0px);
    }
    50% {
        transform: rotate(-15deg) translateY(-10px);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .courses {
        padding: 4rem 0;
    }
    
    .course-tier {
        margin-bottom: 4rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .courses {
        padding: 3rem 0;
    }
    
    .courses-showcase {
        width: 350px;
        height: 300px;
        margin: 0 auto;
    }

    .advanced-card {
        bottom: 50px;
        left: 25px;
    }

    .elite-card {
        bottom: 5px;
        right: 25px;
    }

    .courses-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    /* Keep intermediate section as 1 column on mobile for better readability */
    #intermediate .courses-grid {
        grid-template-columns: 1fr;
        max-width: 100%;
    }
    
    .course-tier {
        margin-bottom: 3rem;
    }
    
    .tier-header {
        margin-bottom: 2rem;
    }
    
    .tier-header h2 {
        font-size: 2rem;
    }

    .stats-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }
    
    .courses-grid {
        gap: 1rem;
    }
    
    .course-category {
        padding: 1.5rem;
    }
    
    .tier-header h2 {
        font-size: 1.75rem;
    }

    .stats-container {
        grid-template-columns: 1fr;
    }
}