/* ===================================
   SISTEMA DE SCROLL FIJO
   - Header fijo en la parte superior
   - Sidebar fijo en la parte izquierda (solo usuarios)
   - Contenido central scrolleable
   =================================== */

/* IMPORTANTE: Prevenir scroll en body */
body.fixed-scroll-active {
    overflow: hidden !important;
    height: 100vh !important;
    position: fixed;
    width: 100%;
}

/* ========================================
   VISTAS PÚBLICAS (bienvenido, login, register)
   ======================================== */
.public-layout {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    width: 100%;
}

.public-layout .header,
.public-layout header {
    position: fixed !important;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: linear-gradient(135deg, #4a90e2, #357abd);
}

.public-layout .main-container,
.public-layout main {
    margin-top: 80px;
    height: calc(100vh - 80px);
    overflow-y: auto;
    overflow-x: hidden;
}

.public-layout .footer,
.public-layout footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 999;
}

/* ========================================
   VISTAS DE USUARIO (dashboard, perfil, etc.)
   ======================================== */
.user-layout {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    width: 100%;
}

/* Header/Navbar fijo en la parte superior */
.user-layout .header,
.user-layout .navbar {
    position: fixed !important;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: linear-gradient(135deg, #C67854, #B56744);
    height: 80px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
}

.user-layout .header .header-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-layout .header .header-right {
    display: flex;
    align-items: center;
}

.user-layout .header .back-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    font-size: 1rem;
}

.user-layout .header .back-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

/* Contenedor principal */
.user-layout .main-container {
    display: flex;
    margin-top: 80px;
    height: calc(100vh - 80px);
    overflow: hidden;
    width: 100%;
}

/* Sidebar fijo a la izquierda */
.user-layout .sidebar {
    position: fixed !important;
    left: 0;
    top: 80px; /* encaja debajo del navbar */
    width: 280px;
    height: calc(100vh - 80px);
    overflow-y: auto;
    overflow-x: hidden;
    background: #6c757d;
    z-index: 900;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
}

/* Scrollbar personalizado para sidebar */
.user-layout .sidebar::-webkit-scrollbar {
    width: 8px;
}

.user-layout .sidebar::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.1);
}

.user-layout .sidebar::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

.user-layout .sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* Área de contenido scrolleable */
.user-layout .content-area {
    position: absolute;
    left: 280px;
    top: 0;
    right: 0;
    height: 100%;
    overflow-y: auto !important;
    overflow-x: hidden;
    padding: 96px 30px 100px 30px; /* aún más separación del navbar + espacio inferior */
    background: #f5f5f5;
    box-sizing: border-box;
}

/* Asegurar que el contenido no se corte */
.user-layout .content-area > * {
    max-width: 100%;
    box-sizing: border-box;
}

/* Scrollbar personalizado para content-area */
.user-layout .content-area::-webkit-scrollbar {
    width: 10px;
}

.user-layout .content-area::-webkit-scrollbar-track {
    background: #e5e7eb;
}

.user-layout .content-area::-webkit-scrollbar-thumb {
    background: #9ca3af;
    border-radius: 5px;
}

.user-layout .content-area::-webkit-scrollbar-thumb:hover {
    background: #6b7280;
}

/* Footer fijo en vistas de usuario */
.user-layout .footer {
    position: fixed;
    bottom: 0;
    left: 280px;
    right: 0;
    z-index: 999;
    background: #f5f5f5;
    padding: 15px;
    text-align: center;
    border-top: 1px solid #e5e7eb;
}

/* Ajustes para modo oscuro */
[data-theme="dark"] .user-layout .content-area {
    background: var(--bg-primary, #1a1a1a);
}

[data-theme="dark"] .user-layout .content-area::-webkit-scrollbar-track {
    background: #2d2d2d;
}

[data-theme="dark"] .user-layout .content-area::-webkit-scrollbar-thumb {
    background: #4a4a4a;
}

[data-theme="dark"] .user-layout .content-area::-webkit-scrollbar-thumb:hover {
    background: #5a5a5a;
}

[data-theme="dark"] .user-layout .footer {
    background: var(--bg-primary, #1a1a1a);
    border-top-color: #2d2d2d;
}

/* Ajustes para alto contraste */
[data-theme="high-contrast"] .user-layout .content-area::-webkit-scrollbar-thumb {
    background: #000;
    border: 2px solid #fff;
}

[data-theme="high-contrast"] .user-layout .sidebar::-webkit-scrollbar-thumb {
    background: #fff;
    border: 2px solid #000;
}

/* Responsive */
@media (max-width: 768px) {
    .user-layout .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        top: 0;
    }
    
    .user-layout .content-area {
        margin-left: 0;
        width: 100%;
        padding: 64px 15px 80px 15px; /* separación superior en móvil */
    }
    
    .user-layout .footer {
        left: 0;
    }
}

/* Smooth scroll */
.user-layout .content-area,
.user-layout .sidebar,
.public-layout .main-container {
    scroll-behavior: smooth;
}

/* Asegurar que el contenido largo sea scrolleable */
.user-layout .content-area > * {
    max-width: 100%;
}

/* Ajustes adicionales para elementos específicos */
.user-layout .learning-map,
.user-layout .temas-list,
.user-layout .logros-grid,
.user-layout .desafios-grid {
    width: 100%;
    max-width: 100%;
}