/* style.css - Diseño Premium y Moderno para el Sistema de Reservas de la Facultad FBQF */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --accent-color: #4f46e5;
    --accent-hover: #4338ca;
    --accent-light: #e0e7ff;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --danger: #ef4444;
    --success: #10b981;
    --warning: #f59e0b;
}

[data-theme="dark"] {
    --bg-primary: #0b0f19;
    --bg-secondary: #161e2e;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border-color: #243049;
    --accent-color: #6366f1;
    --accent-hover: #4f46e5;
    --accent-light: #1e1b4b;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Outfit', sans-serif;
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.2s ease;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.welcome-banner {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    border-left: 4px solid var(--accent-color);
}

.welcome-banner h2 {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.5;
}

header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent-color), #818cf8);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 1.25rem;
    box-shadow: 0 4px 10px rgba(99, 102, 241, 0.3);
}

.logo-title h1 {
    font-size: 1.25rem;
    font-weight: 600;
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s ease;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--accent-color);
    color: #ffffff;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}

.btn-secondary {
    background-color: var(--bg-primary);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: var(--border-color);
}

.btn-danger {
    background-color: var(--danger);
    color: #ffffff;
}

.btn-danger:hover {
    background-color: #dc2626;
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
}

.theme-toggle:hover {
    background-color: var(--border-color);
    color: var(--text-primary);
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

/* Panel de Controles superiores */
.controls-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2rem;
    background-color: var(--bg-secondary);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.view-selector {
    display: flex;
    background-color: var(--bg-primary);
    padding: 0.25rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.view-btn {
    border: none;
    background: none;
    padding: 0.5rem 1.25rem;
    border-radius: calc(var(--radius-sm) - 2px);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.view-btn.active {
    background-color: var(--bg-secondary);
    color: var(--accent-color);
    box-shadow: var(--shadow-sm);
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.form-select, .form-input {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
}

.form-select:focus, .form-input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px var(--accent-light);
}

.nav-week {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-week span {
    font-weight: 600;
    font-size: 0.95rem;
    min-width: 180px;
    text-align: center;
}

/* DISEÑO DE CALENDARIO SEMANAL: TARJETAS POR DÍA */
.week-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.day-card {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 400px;
}

.day-header {
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.75rem;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.day-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.day-header span {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.day-reservations {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    overflow-y: auto;
}

.reserva-item {
    position: relative;
    padding: 0.85rem 1.1rem;
    border-radius: var(--radius-sm);
    background-color: var(--aula-color, var(--accent-color));
    color: #ffffff;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    box-shadow: var(--shadow-sm);
    animation: fadeIn 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

.reserva-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    filter: brightness(1.05);
}

.reserva-time {
    font-size: 0.8rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.95);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.reserva-time span {
    color: inherit;
}

.reserva-status-badge {
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    background-color: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(2px);
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    letter-spacing: 0.03em;
}

.reserva-status-badge.reservado {
    border: 1px solid rgba(255, 255, 255, 0.2);
    background-color: rgba(239, 68, 68, 0.3);
    color: #ffffff;
}

.reserva-status-badge.disponible {
    border: 1px solid rgba(255, 255, 255, 0.2);
    background-color: rgba(16, 185, 129, 0.3);
    color: #ffffff;
}

.reserva-title {
    font-weight: 600;
    font-size: 1.05rem;
}

.reserva-info {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.85);
}

.reserva-teacher {
    font-size: 0.8rem;
    font-weight: 500;
    margin-top: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    color: rgba(255, 255, 255, 0.9);
}

.reserva-repetida-badge {
    margin-top: 0.35rem;
    font-size: 0.75rem;
    font-weight: 600;
    background-color: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.35);
    color: #ffffff;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    align-self: flex-start;
    animation: pulse 2s infinite alternate;
}

.reserva-actions {
    margin-top: 0.5rem;
    display: flex;
    justify-content: flex-end;
}

.btn-mini-cancel {
    padding: 0.3rem 0.6rem;
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
    background-color: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.4);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-mini-cancel:hover:not(:disabled) {
    background-color: rgba(255, 255, 255, 0.35);
    border-color: #ffffff;
}

.btn-mini-cancel:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-mini-reservar {
    padding: 0.3rem 0.6rem;
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
    background-color: #ffffff;
    color: var(--accent-color);
    border: 1px solid #ffffff;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
    box-shadow: var(--shadow-sm);
}

.btn-mini-reservar:hover {
    background-color: var(--accent-light);
    color: var(--accent-hover);
    transform: scale(1.03);
}

.empty-day {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding: 2rem 1rem;
    text-align: center;
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-sm);
    margin-top: 0.5rem;
    height: 100%;
}

.empty-day i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    opacity: 0.5;
}

/* ANUAL VIEW TABLE */
.annual-container {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.table-responsive {
    overflow-x: auto;
}

.custom-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

.custom-table th {
    background-color: var(--bg-primary);
    padding: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border-color);
}

.custom-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.custom-table tr:hover {
    background-color: rgba(99, 102, 241, 0.03);
}

.badge {
    padding: 0.25rem 0.5rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.badge-sede {
    background-color: var(--accent-light);
    color: var(--accent-color);
}

.badge-aula {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    font-weight: 600;
}

/* MODALES / DIALOGS */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 500px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transform: translateY(20px);
    transition: transform 0.25s ease;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

.modal-content form {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    background-color: var(--bg-primary);
}

/* FORMULARIOS */
.form-field {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-field label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* PANEL ADMIN CON PESTAÑAS (TABS) */
.admin-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.25rem;
    overflow-x: auto;
}

.tab-btn {
    border: none;
    background: none;
    padding: 0.75rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    position: relative;
}

.tab-btn.active {
    color: var(--accent-color);
    font-weight: 600;
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--accent-color);
    border-radius: 2px;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

/* SLOT SELECTOR FOR RESERVATIONS */
.slot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 0.75rem;
    max-height: 200px;
    overflow-y: auto;
    padding: 0.25rem;
}

.slot-option {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.75rem;
    text-align: center;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    background-color: var(--bg-primary);
}

.slot-option:hover {
    border-color: var(--accent-color);
    background-color: var(--accent-light);
}

.slot-option.selected {
    background-color: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.slot-option.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background-color: var(--border-color);
}

/* ALERTS */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-sm);
    color: white;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    z-index: 2000;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast.active {
    transform: translateY(0);
    opacity: 1;
}

.toast-success {
    background-color: var(--success);
}

.toast-error {
    background-color: var(--danger);
}

/* ANIMACIONES */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* PANEL PERFIL DOCENTE */
.profile-card {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
}

.profile-info h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

.profile-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* ADMIN ACTIONS CELL */
.action-buttons {
    display: flex;
    gap: 0.5rem;
}

.btn-icon {
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: none;
    cursor: pointer;
    color: var(--text-secondary);
}

.btn-icon:hover {
    color: var(--text-primary);
    background-color: var(--bg-primary);
    border-color: var(--text-secondary);
}

.btn-icon-danger:hover {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border-color: var(--danger);
}

/* COLOR BOX BADGE */
.color-badge {
    display: inline-block;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    vertical-align: middle;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.4);
        transform: scale(1);
    }
    100% {
        box-shadow: 0 0 0 6px rgba(255, 255, 255, 0);
        transform: scale(1.02);
    }
}

/* RESERVA GRID HORIZONTAL LAYOUT */
.reserva-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    align-items: start;
}

.reserva-col {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

@media (max-width: 768px) {
    .reserva-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
}

/* BOTÓN EXPORTAR PDF */
.btn-pdf {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: #ef4444;
    color: white;
    border: none;
    height: 38px;
    padding: 0 1.25rem;
    font-weight: 500;
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
}

.btn-pdf:hover {
    background-color: #dc2626;
    transform: translateY(-1px);
}

.btn-pdf:active {
    transform: translateY(0);
}

/* BANNER INFORMATIVO DE AULA SELECCIONADA */
.aula-info-banner {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 1.5rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--accent-color);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1.25rem;
    margin-top: 1rem;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
    animation: fadeIn 0.3s ease-in-out;
}

.aula-info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

.aula-info-item strong {
    color: var(--text-primary);
    font-weight: 600;
}

.aula-info-item i {
    color: var(--accent-color);
    font-size: 1rem;
}

/* ESTILOS DE BLOQUES DE DISPONIBILIDAD EN CALENDARIO SEMANAL */
.reserva-item-disponible {
    background-color: rgba(16, 185, 129, 0.04);
    border-left: 5px solid #10b981;
    border-top: 1px solid rgba(16, 185, 129, 0.15);
    border-right: 1px solid rgba(16, 185, 129, 0.15);
    border-bottom: 1px solid rgba(16, 185, 129, 0.15);
    border-radius: var(--radius-sm);
    padding: 1rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease-in-out;
}

.reserva-item-disponible:hover {
    background-color: rgba(16, 185, 129, 0.07);
    border-top-color: rgba(16, 185, 129, 0.3);
    border-right-color: rgba(16, 185, 129, 0.3);
    border-bottom-color: rgba(16, 185, 129, 0.3);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.reserva-item-inhabilitado {
    background-color: rgba(148, 163, 184, 0.06);
    border-left: 5px solid #94a3b8;
    border-top: 1px dashed rgba(148, 163, 184, 0.25);
    border-right: 1px dashed rgba(148, 163, 184, 0.25);
    border-bottom: 1px dashed rgba(148, 163, 184, 0.25);
    border-radius: var(--radius-sm);
    padding: 0.85rem 1rem;
    margin-bottom: 1rem;
    opacity: 0.8;
}

.reserva-status-badge.disponible {
    background-color: #10b981;
    color: #ffffff;
}

.reserva-status-badge.inhabilitado {
    background-color: #94a3b8;
    color: #ffffff;
}

/* Selector rápido de slots de horarios en reservas */
.btn-slot {
    background-color: var(--accent-light);
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
    padding: 0.4rem 0.75rem;
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    transition: all 0.2s ease;
}

.btn-slot:hover {
    background-color: var(--accent-color);
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn-slot.active {
    background-color: var(--accent-color);
    color: #ffffff;
    border-color: var(--accent-hover);
    box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.2);
}

/* Tags para slots seleccionados en recurrente */
.slot-tag {
    background-color: var(--accent-color);
    color: #ffffff;
    padding: 0.35rem 0.65rem;
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
}

.slot-tag i {
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.2s ease;
}

.slot-tag i:hover {
    opacity: 1;
}