/* Learning Sessions Manager - Custom Styles */

:root {
    --primary-color: #0d6efd;
    --success-color: #198754;
    --info-color: #0dcaf0;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
}

/* Mobile-first responsive design */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

/* Action buttons - consistent sizing */
.btn-action {
    min-width: 120px;
    text-align: center;
}

@media (max-width: 768px) {
    .btn-action {
        min-width: 100px;
    }
}

/* Cards */
.card {
    border-radius: 0.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

/* Clickable cards (dashboard stats) */
.card-hover {
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
}

.card-hover:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

/* Forms */
.form-control,
.form-select {
    font-size: 1rem;
    padding: 0.75rem;
}

@media (max-width: 768px) {
    .form-control,
    .form-select {
        font-size: 1.1rem;
        padding: 0.875rem;
    }
}

/* Navigation */
.navbar {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

/* List groups */
.list-group-item-action:hover {
    background-color: rgba(13, 110, 253, 0.05);
}

/* Statistics cards */
.card-body {
    position: relative;
    overflow: hidden;
}

/* Alerts */
.alert {
    border-radius: 0.5rem;
}

/* Footer */
footer {
    margin-top: auto;
}

/* Help tooltips */
[data-bs-toggle="tooltip"] {
    cursor: help;
}

/* Loading spinner */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
    border-width: 0.15rem;
}

/* Mobile navigation improvements */
@media (max-width: 992px) {
    .navbar-collapse {
        background-color: rgba(13, 110, 253, 0.95);
        padding: 1rem;
        border-radius: 0.5rem;
        margin-top: 0.5rem;
    }
}

/* Table responsiveness */
.table-responsive {
    -webkit-overflow-scrolling: touch;
}

/* Skill badges */
.skill-validated {
    background-color: var(--success-color);
}

.skill-not-validated {
    background-color: var(--warning-color);
}

/* Selected students badges */
#selected-students .badge {
    font-size: 1rem;
    padding: 0.6rem 0.9rem;
    font-weight: normal;
    margin-bottom: 0.25rem;
}

#selected-students .badge em {
    font-style: italic;
    font-weight: normal;
}

#selected-students .badge strong {
    font-weight: 600;
}

#selected-students .btn-close {
    font-size: 0.7rem;
    padding: 0.3rem;
    opacity: 0.8;
}

#selected-students .btn-close:hover {
    opacity: 1;
}

/* Clickable student names in list - button style for mobile */
.student-name-link {
    cursor: pointer;
    padding: 0.5rem 0.75rem;
    border-radius: 0.375rem;
    display: block;
    width: 100%;
    font-size: 1rem;
    background-color: #e9ecef;
    border: 2px solid #adb5bd;
    transition: all 0.15s ease-in-out;
    -webkit-tap-highlight-color: transparent;
}

.student-name-link:hover {
    background-color: #0d6efd;
    border-color: #0d6efd;
    color: white;
}

.student-name-link:hover em,
.student-name-link:hover strong {
    color: white;
}

.student-name-link:active {
    transform: scale(0.98);
    background-color: #0d6efd;
    border-color: #0d6efd;
    color: white;
}

.student-name-link:active em,
.student-name-link:active strong {
    color: white;
}

.student-name-link em {
    font-style: italic;
}

.student-name-link strong {
    font-weight: 600;
}

.student-name-link mark {
    background-color: #fff3cd;
    padding: 0;
    border-radius: 2px;
}

/* Mobile optimizations for student selection */
@media (max-width: 768px) {
    #selected-students .badge {
        font-size: 1.1rem;
        padding: 0.6rem 0.9rem;
    }

    #selected-students .btn-close {
        font-size: 0.8rem;
        padding: 0.4rem;
    }

    .student-name-link {
        font-size: 1.1rem;
        padding: 0.6rem 0.9rem;
    }
}

/* Rating egg: inline SVG, gold body inherits currentColor, white zigzag bands */
.rating-egg-icon {
    display: inline-block;
    vertical-align: -0.15em;
}