/* ═══════════════════════════════════════════════
   CURSOS.CSS — ESTILOS LIGEROS PARA SEMANAS Y MATERIALES
   Plataforma E-Learning Ubuntu Perú
   ═══════════════════════════════════════════════ */

/* ── Navegación de Semanas (Pestañas / Píldoras) ── */
.weeks-nav-container {
    display: flex;
    align-items: center;
    gap: 8px;
    overflow-x: auto;
    padding: 6px 2px 14px 2px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border-color, #e2e8f0);
    scrollbar-width: thin;
}

.weeks-nav-container::-webkit-scrollbar {
    height: 4px;
}

.weeks-nav-container::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

.week-tab-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 600;
    white-space: nowrap;
    cursor: pointer;
    background: var(--bg-body, #F4F5F7);
    color: var(--text-secondary, #5a6b7c);
    border: 1.5px solid var(--border-color, #e2e8f0);
    transition: all 0.2s ease;
}

.week-tab-btn:hover {
    border-color: var(--siemens-teal, #009999);
    color: var(--siemens-teal, #009999);
}

.week-tab-btn.active {
    background: var(--siemens-teal, #009999);
    color: #ffffff;
    border-color: var(--siemens-teal, #009999);
    box-shadow: 0 2px 8px rgba(0, 153, 153, 0.25);
}

.week-tab-btn.is-hidden {
    opacity: 0.65;
    border-style: dashed;
}

/* ── Cabecera de la Semana Activa ── */
.week-header-card {
    background: var(--bg-body, #F4F5F7);
    border-radius: 12px;
    padding: 14px 18px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    border: 1px solid var(--border-color, #e2e8f0);
}

.week-header-info {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.week-title-text {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary, #1a1a1a);
}

.week-subtitle-text {
    font-size: 0.78rem;
    color: var(--text-secondary, #5a6b7c);
}

/* ── Badges de Visibilidad para el Profesor ── */
.badge-visibility {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 9px;
    border-radius: 12px;
    font-size: 0.72rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
}

.badge-visibility.published {
    background: #dcfce7;
    color: #15803d;
}

.badge-visibility.published:hover {
    background: #bbf7d0;
}

.badge-visibility.hidden {
    background: #f1f5f9;
    color: #64748b;
    border: 1px dashed #cbd5e1;
}

.badge-visibility.hidden:hover {
    background: #e2e8f0;
}

/* ── Botón de Clase en Vivo (Meet/Zoom) por Semana ── */
.btn-week-meet {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 16px;
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 700;
    background: linear-gradient(135deg, #2D7A4F, #1f5737);
    color: #ffffff !important;
    text-decoration: none;
    box-shadow: 0 2px 6px rgba(45, 122, 79, 0.25);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-week-meet:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(45, 122, 79, 0.35);
}

/* ── Panel de Acciones del Profesor ── */
.teacher-actions-bar {
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-icon-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    border: 1px solid var(--border-color, #e2e8f0);
    background: #ffffff;
    color: var(--text-secondary, #5a6b7c);
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s ease;
}

.btn-icon-action:hover {
    border-color: var(--siemens-teal, #009999);
    color: var(--siemens-teal, #009999);
    background: #f8fafc;
}

.btn-icon-action.danger:hover {
    border-color: #ef4444;
    color: #ef4444;
    background: #fef2f2;
}

/* ── Botón Agregar Semana ── */
.btn-add-week {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
    cursor: pointer;
    background: transparent;
    color: var(--siemens-teal, #009999);
    border: 1.5px dashed var(--siemens-teal, #009999);
    transition: all 0.2s ease;
}

.btn-add-week:hover {
    background: rgba(0, 153, 153, 0.08);
}

/* ── Mensaje de Semana Vacía / No Disponible ── */
.week-empty-state {
    padding: 36px 20px;
    text-align: center;
    background: var(--bg-card, #ffffff);
    border: 1.5px dashed var(--border-color, #e2e8f0);
    border-radius: 12px;
    margin-bottom: 20px;
    color: var(--text-secondary, #5a6b7c);
}

.week-empty-state i {
    font-size: 2.2rem;
    color: #94a3b8;
    margin-bottom: 10px;
    display: block;
}

/* ── Botones y Animaciones de Clase en Vivo Dinámica por Curso ── */
.btn-week-meet.is-live-pulse {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
    animation: livePulseGlow 1.8s infinite;
    cursor: pointer;
    border: none;
}

.btn-week-meet.is-live-pulse:hover {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
    transform: translateY(-2px) scale(1.02);
}

@keyframes livePulseGlow {
    0% {
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(239, 68, 68, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0);
    }
}

.btn-start-course-live {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 14px;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 700;
    background: rgba(0, 153, 153, 0.1);
    color: var(--siemens-teal, #009999);
    border: 1.5px solid var(--siemens-teal, #009999);
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-start-course-live:hover {
    background: var(--siemens-teal, #009999);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(0, 153, 153, 0.3);
}

.btn-end-course-live {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 14px;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 700;
    background: #fee2e2;
    color: #dc2626;
    border: 1.5px solid #f87171;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-end-course-live:hover {
    background: #dc2626;
    color: #ffffff;
}