/* === Exams Section Styles === */

/* Helper for grid */
.exams-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

/* Exam Card Enhanced */
.exam-card-enhanced {
    background-color: var(--surface-color);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color-subtle);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.25s, border-color 0.25s;
    position: relative;
}

.exam-card-enhanced:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-color);
}

.exam-card-enhanced::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: var(--border-color);
    border-radius: 4px 0 0 4px;
}

.exam-card-enhanced.registered::before {
    background-color: var(--primary-color);
}

.exam-card-enhanced.upcoming::before {
    background-color: var(--warning-color);
}

.exam-card-enhanced.completed::before {
    background-color: var(--success-color);
}

.exam-body {
    padding: 1.5rem;
    display: flex;
    gap: 1.5rem;
    flex: 1;
}

/* Date Box */
.exam-date-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-color);
    border-radius: var(--radius-lg);
    padding: 0.75rem;
    min-width: 80px;
    height: fit-content;
    text-align: center;
    border: 1px solid var(--border-color-subtle);
    transition: background-color 0.2s;
}

.exam-card-enhanced:hover .exam-date-box {
    background-color: var(--primary-light);
}

.exam-day {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    letter-spacing: -0.03em;
}

.exam-month {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--text-secondary);
    font-weight: 600;
    margin-top: 0.25rem;
}

.exam-year {
    font-size: 0.7rem;
    color: var(--text-secondary);
}

/* Exam Info */
.exam-info {
    flex: 1;
}

.exam-meta {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    flex-wrap: wrap;
}

.exam-tag {
    font-size: 0.65rem;
    padding: 3px 8px;
    border-radius: 999px;
    background-color: var(--bg-color);
    color: var(--text-secondary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border: 1px solid var(--border-color-subtle);
}

.exam-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    line-height: 1.3;
    letter-spacing: -0.015em;
}

.exam-details-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.exam-detail-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.exam-detail-item .material-icons-round {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* Footer Actions */
.exam-footer {
    padding: 0.85rem 1.5rem;
    background-color: var(--bg-color);
    border-top: 1px solid var(--border-color-subtle);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.exam-status {
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.exam-status.registered {
    color: var(--primary-color);
}

.exam-status.imminent {
    color: var(--warning-color);
}

.action-link {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    transition: color 0.2s;
}

.action-link:hover {
    color: var(--primary-color);
}

/* Filter Bar */
.filter-bar {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
}

.filter-chip {
    padding: 0.45rem 1.1rem;
    border-radius: 999px;
    background-color: var(--surface-color);
    border: 1.5px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: inherit;
}

.filter-chip.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    font-weight: 600;
}

.filter-chip:hover:not(.active) {
    background-color: var(--primary-light);
    color: var(--primary-color);
    border-color: rgba(59, 130, 246, 0.3);
}

/* Dark mode glassmorphism for exam cards */
body.dark-mode .exam-card-enhanced {
    background-color: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-color: var(--glass-border);
}

body.dark-mode .exam-card-enhanced:hover {
    border-color: rgba(100, 130, 200, 0.2);
}

body.dark-mode .exam-date-box {
    background-color: rgba(8, 14, 30, 0.5);
    border-color: var(--glass-border);
}

body.dark-mode .exam-footer {
    background-color: rgba(8, 14, 30, 0.4);
    border-top-color: var(--glass-border);
}

body.dark-mode .filter-chip {
    background-color: rgba(15, 23, 42, 0.5);
    border-color: var(--glass-border);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .exams-grid {
        grid-template-columns: 1fr;
    }

    .exam-card-enhanced {
        flex-direction: column;
    }

    .exam-body {
        flex-direction: column;
        gap: 1rem;
        padding: 1.25rem;
    }

    .exam-date-box {
        flex-direction: row;
        width: 100%;
        justify-content: flex-start;
        gap: 0.75rem;
        padding: 0.5rem 1rem;
        min-height: auto;
        align-items: baseline;
    }

    .exam-day {
        font-size: 1.5rem;
    }

    .exam-month,
    .exam-year {
        font-size: 0.9rem;
    }

    .filter-bar {
        padding-bottom: 0.5rem;
        margin-bottom: 1rem;
        -webkit-overflow-scrolling: touch;
        /* Smooth scrolling on iOS */
    }
}