/* ========================================
   Tracks Page Styles
   ======================================== */

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

@keyframes floatAnimation {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Page Header */
.page-header {
    padding: 160px 0 80px;
    text-align: center;
    background: linear-gradient(180deg, var(--bg-blue-light) 0%, var(--bg-light) 100%);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, rgba(0, 102, 255, 0.1), transparent 70%);
    animation: floatAnimation 8s ease-in-out infinite;
}

.page-header h1 {
    font-size: 52px;
    font-weight: 900;
    margin-bottom: 20px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
}

.page-header p {
    font-size: 20px;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.2s forwards;
}

/* Filter Section */
.filter-section {
    padding: 40px 0;
    background: var(--bg-light);
    position: sticky;
    top: 75px;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.filter-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 12px 28px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    color: var(--text-gray);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.filter-tab::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 102, 255, 0.1), transparent);
    transition: 0.5s;
}

.filter-tab:hover::before {
    left: 100%;
}

.filter-tab:hover {
    border-color: rgba(0, 102, 255, 0.3);
    color: var(--text-dark);
    transform: translateY(-2px);
}

.filter-tab.active {
    background: var(--gradient-button);
    border-color: var(--primary-color);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.3);
}

/* Tracks Section */
.tracks-section {
    padding: 60px 0 100px;
}

.tracks-list {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

/* Track Full Card */
.track-full-card {
    display: grid;
    grid-template-columns: 400px 1fr;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: var(--shadow);
    opacity: 0;
    animation: slideInLeft 0.8s ease forwards;
    position: relative;
}

.track-full-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
    transition: height 0.4s ease;
}

.track-full-card:hover::before {
    height: 100%;
}

.track-full-card:nth-child(1) { animation-delay: 0.1s; }
.track-full-card:nth-child(2) { animation-delay: 0.2s; }
.track-full-card:nth-child(3) { animation-delay: 0.3s; }
.track-full-card:nth-child(4) { animation-delay: 0.4s; }
.track-full-card:nth-child(5) { animation-delay: 0.5s; }
.track-full-card:nth-child(6) { animation-delay: 0.6s; }
.track-full-card:nth-child(7) { animation-delay: 0.7s; }
.track-full-card:nth-child(8) { animation-delay: 0.8s; }
.track-full-card:nth-child(9) { animation-delay: 0.9s; }
.track-full-card:nth-child(10) { animation-delay: 1s; }
.track-full-card:nth-child(11) { animation-delay: 1.1s; }
.track-full-card:nth-child(12) { animation-delay: 1.2s; }

.track-full-card:hover {
    border-color: rgba(0, 102, 255, 0.3);
    box-shadow: var(--shadow-lg);
    transform: translateX(-10px);
}

.track-full-image {
    position: relative;
    min-height: 350px;
    background: linear-gradient(135deg, var(--bg-gray), var(--bg-blue-light));
}

.track-full-image .track-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 16px;
}

.track-full-image .track-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
}

.track-date-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    color: var(--primary-color);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 700;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.track-full-content {
    padding: 40px;
}

.track-category-tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 15px;
}

.track-category-tag.software {
    background: rgba(139, 92, 246, 0.2);
    color: #a78bfa;
}

.track-category-tag.electronics {
    background: rgba(59, 130, 246, 0.2);
    color: #60a5fa;
}

.track-category-tag.electrical {
    background: rgba(250, 204, 21, 0.2);
    color: #fcd34d;
}

.track-category-tag.industry {
    background: rgba(6, 182, 212, 0.2);
    color: #22d3ee;
}

.track-category-tag.building {
    background: rgba(34, 197, 94, 0.2);
    color: #4ade80;
}

.track-category-tag.vehicle {
    background: rgba(251, 146, 60, 0.2);
    color: #fb923c;
}

.track-full-content h2 {
    font-size: 32px;
    font-weight: 900;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.track-full-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.track-description {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-gray);
    margin-bottom: 30px;
}

.track-details-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 30px;
    padding: 25px;
    background: rgba(0, 102, 255, 0.05);
    border-radius: var(--radius-md);
    border: 1px solid rgba(0, 102, 255, 0.1);
}

.detail-item {
    text-align: center;
}

.detail-label {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.detail-value {
    display: block;
    font-size: 15px;
    font-weight: 700;
    color: var(--text-dark);
}

.track-careers,
.track-eligible {
    margin-bottom: 20px;
}

.track-careers h4,
.track-eligible h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.track-careers p,
.track-eligible p {
    font-size: 15px;
    color: var(--text-gray);
}

/* Responsive */
@media (max-width: 1024px) {
    .track-full-card {
        grid-template-columns: 1fr;
    }

    .track-full-image {
        min-height: 250px;
    }

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

@media (max-width: 768px) {
    .page-header h1 {
        font-size: 36px;
    }

    .filter-tabs {
        gap: 10px;
    }

    .filter-tab {
        padding: 10px 20px;
        font-size: 14px;
    }

    .track-full-content {
        padding: 25px;
    }

    .track-full-content h2 {
        font-size: 24px;
    }

    .track-details-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .track-details-grid {
        grid-template-columns: 1fr;
    }
}