/* --- Cards --- */
.card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.card-header {
    padding: 15px 20px;
    border-bottom: 1px solid #eee;
}

.card-header h3 {
    font-size: 16px;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
}

.card-body {
    padding: 20px;
    flex: 1;
}

.center-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* --- Tabs --- */
.tabs {
    display: flex;
    gap: 12px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.tabs .tab {
    padding: 10px 14px;
    border-radius: 8px;
    cursor: pointer;
    color: var(--text-muted);
    background: transparent;
    border: 1px solid transparent;
    font-weight: 600;
}

.tabs .tab.active {
    background: var(--primary-orange);
    color: #fff;
    border-color: rgba(0, 0, 0, 0.03);
}

/* --- Forms --- */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-family: var(--font-family);
    font-size: 14px;
    resize: vertical;
    min-height: 120px;
}

.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-purple);
    box-shadow: 0 0 0 2px rgba(111, 66, 193, 0.1);
}

.btn-submit {
    background: var(--primary-purple);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s;
}

.btn-submit:hover {
    background: #5a32a3;
    transform: translateY(-1px);
}

/* --- Tables --- */
.result-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.result-table th {
    background: #343a40;
    color: white;
    text-align: left;
    padding: 10px;
}

.result-table td {
    padding: 10px;
    border-bottom: 1px solid #eee;
}

.grade-a {
    color: var(--success-green);
    font-weight: bold;
}

.grade-ap {
    color: var(--primary-purple);
    font-weight: bold;
}

/* --- Empty State --- */
.empty-state {
    text-align: center;
    color: var(--text-muted);
}

.big-icon {
    font-size: 40px;
    margin-bottom: 15px;
    opacity: 0.3;
}

.course-table {
    width: 100%;
    border-collapse: collapse;
}

.course-table thead th {
    background: #343a40;
    color: #fff;
    text-align: left;
    padding: 12px;
    font-size: 14px;
}

.course-table td {
    padding: 12px;
    border-bottom: 1px solid #eee;
    font-size: 14px;
}

.course-empty {
    color: var(--text-muted);
}

/* --- Info Rows --- */
.info-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    border-bottom: 1px dashed #eee;
    padding-bottom: 5px;
}

/* --- Badges --- */
.badge-theory {
    background: #e3f2fd;
    color: #1976d2;
    width: fit-content;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 10px;
    margin-top: 2px;
}

.badge-lab {
    background: #fff3cd;
    color: #856404;
    width: fit-content;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 10px;
    margin-top: 2px;
}