/* ---
--- ADMIN PANEL STYLESHEET (v2.1 - Fuentes Reducidas)
--- Inspirado en AdminLTE
--- */

/* --- Variables Globales --- */
:root {
    --color-primary: #007bff;
    --color-primary-dark: #0056b3;
    --color-danger: #dc3545;
    --color-danger-dark: #c82333;
    --color-warning: #ffc107;
    --color-warning-dark: #e0a800;
    --color-success: #28a745;
    --color-info: #17a2b8;

    --color-sidebar-bg: #1e2a38;
    --color-sidebar-text: #c2c7d0;
    --color-sidebar-hover: #34495e;
    --color-sidebar-active: var(--color-primary);

    --color-content-bg: #f4f6f9;
    --color-card-bg: #ffffff;
    --color-text-dark: #343a40;
    --color-text-muted: #6c757d;
    --color-border: #dee2e6;

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.03);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.05);
    --border-radius: 0.375rem; /* 6px */
}

/* --- Reseteo y Body --- */
body {
    font-family: var(--font-family);
    margin: 0;
    background-color: var(--color-content-bg);
    color: var(--color-text-dark);
    font-size: 15px; /* Reducido de 16px */
    line-height: 1.5;
}

* {
    box-sizing: border-box;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    margin-top: 0;
    margin-bottom: 0.75rem;
    color: var(--color-sidebar-bg);
}
h2 { font-size: 1.6rem; } /* Reducido de 1.75rem */
h3 { font-size: 1.4rem; } /* Reducido de 1.5rem */

hr {
    border: 0;
    border-top: 1px solid var(--color-border);
    margin: 2rem 0;
}

/* --- Estilo Página de Login --- */
body.login-page {
    display: grid;
    place-items: center;
    min-height: 100vh;
    background-color: var(--color-content-bg);
}

.login-container {
    background: var(--color-card-bg);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 400px;
    text-align: center;
    border-top: 4px solid var(--color-primary);
}

.login-container .logo {
    font-size: 1.8rem; /* Reducido de 2rem */
    font-weight: 700;
    color: var(--color-sidebar-bg);
    margin-bottom: 0.5rem;
}
.login-container .logo span {
    font-weight: 300;
    color: var(--color-primary);
}

.login-container h2 {
    margin-bottom: 1.5rem;
    font-weight: 400;
    color: var(--color-text-muted);
    font-size: 1rem; /* Reducido de 1.1rem */
}

/* --- Estructura AdminLTE --- */
.admin-wrapper {
    display: flex;
    min-height: 100vh;
}

/* --- Barra Lateral (Menú) --- */
.main-sidebar {
    width: 260px;
    background-color: var(--color-sidebar-bg);
    color: var(--color-sidebar-text);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 1000;
    transition: transform 0.3s ease-in-out;
    box-shadow: 0 14px 28px rgba(0,0,0,0.25), 0 10px 10px rgba(0,0,0,0.22);
}

.sidebar-header {
    padding: 1rem;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.sidebar-header .logo {
    color: var(--color-card-bg);
    text-decoration: none;
    font-size: 1.4rem; /* Reducido de 1.5rem */
    font-weight: 700;
    opacity: 0.9;
    transition: opacity 0.2s ease;
}
.sidebar-header .logo:hover {
    opacity: 1;
}
.sidebar-header .logo span {
    font-weight: 300;
}

.user-panel {
    padding: 1.5rem 1rem;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    font-weight: 500;
    font-size: 0.95rem; /* Añadido */
}
.user-panel i {
    font-size: 1.8rem; /* Reducido de 2rem */
    opacity: 0.8;
}

.sidebar-menu ul {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}
.sidebar-menu li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0.8rem 1.5rem; /* Reducido padding vertical */
    color: var(--color-sidebar-text);
    text-decoration: none;
    transition: background-color 0.2s ease, color 0.2s ease;
    border-left: 4px solid transparent;
    font-size: 0.95rem; /* Añadido */
}
.sidebar-menu li a i {
    width: 20px;
    text-align: center;
    font-size: 1rem; /* Reducido de 1.1rem */
    opacity: 0.7;
}
.sidebar-menu li a:hover {
    background-color: var(--color-sidebar-hover);
    color: var(--color-card-bg);
}
.sidebar-menu li.active > a {
    background-color: var(--color-sidebar-active);
    color: var(--color-card-bg);
    font-weight: 600;
    border-left: 4px solid var(--color-primary-dark);
}

/* --- Contenedor Principal --- */
.content-wrapper {
    flex: 1;
    margin-left: 260px;
    display: flex;
    flex-direction: column;
    transition: margin-left 0.3s ease-in-out;
}

/* Header Superior */
.main-header {
    background-color: var(--color-card-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 0.8rem 1.5rem; /* Reducido padding vertical */
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 999;
}
.hamburger {
    display: none; /* Oculto en desktop */
    font-size: 1.4rem; /* Reducido de 1.5rem */
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-dark);
}
.btn-logout {
    background: var(--color-danger);
    color: white;
    padding: 0.5rem 1rem; /* Reducido padding */
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.85rem; /* Reducido de 0.9rem */
    transition: background-color 0.2s ease;
}
.btn-logout i { margin-right: 5px; }
.btn-logout:hover {
    background: var(--color-danger-dark);
}

/* Contenido de Página */
.content {
    flex: 1;
    padding: 1.5rem; /* Reducido de 2rem */
}
.content-container {
    background: var(--color-card-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

/* Pie de Página */
.main-footer {
    background-color: var(--color-card-bg);
    border-top: 1px solid var(--color-border);
    padding: 1.1rem 1.5rem; /* Reducido padding */
    font-size: 0.85em; /* Reducido de 0.9em */
    color: var(--color-text-muted);
    margin-top: 1.5rem; /* Reducido de 2rem */
}
.main-footer a {
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: none;
}

/* --- Estilos de Formularios (unificados) --- */
.form-group {
    margin-bottom: 1.25rem; /* Reducido de 1.5rem */
}
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem; /* Reducido de 0.95rem */
    color: var(--color-text-dark);
}
.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="number"],
.form-group input[type="file"],
.form-group textarea {
    width: 100%;
    padding: 0.65rem 0.9rem; /* Reducido padding */
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    box-sizing: border-box;
    font-family: var(--font-family);
    font-size: 0.95rem; /* Reducido de 1rem */
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0,123,255,0.15);
    outline: none;
}
.form-group textarea {
    min-height: 120px;
    resize: vertical;
}
.form-group small, .icon-examples {
    color: var(--color-text-muted);
    font-size: 0.85em; /* Reducido de 0.9em */
    margin-top: 0.25rem;
    display: block;
}

/* Botones */
.btn {
    width: 100%;
    padding: 0.8rem 1.5rem; /* Reducido padding */
    background: var(--color-primary);
    color: white;
    border: 0;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 1rem; /* Reducido de 1.1rem */
    font-weight: 600;
    transition: background-color 0.2s ease;
}
.btn:hover {
    background: var(--color-primary-dark);
}
.btn-success { background-color: var(--color-success); }
.btn-success:hover { background-color: #218838; }

/* Alertas y Mensajes */
.success { background: #d4edda; color: #155724; padding: 1rem; border: 1px solid #c3e6cb; border-radius: var(--border-radius); margin-bottom: 1.5rem; }
.error { background: #f8d7da; color: #721c24; padding: 1rem; border: 1px solid #f5c6cb; border-radius: var(--border-radius); margin-bottom: 1.5rem; }

/* Vistas de Lista (Slides, Proyectos) */
.list-container { margin-top: 2.5rem; } /* Reducido de 3rem */
.item-list { list-style: none; padding: 0; }
.item-list li {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    border: 1px solid var(--color-border);
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: var(--border-radius);
    transition: box-shadow 0.2s ease;
}
.item-list li:hover {
    box-shadow: var(--shadow-sm);
}
.item-list img {
    width: 140px; /* Reducido de 150px */
    height: 75px; /* Reducido de 80px */
    border-radius: var(--border-radius);
    margin-right: 0;
    object-fit: cover;
    border: 1px solid var(--color-border);
}
.item-list h4 {
    margin: 0;
    flex: 1;
    font-size: 1.05rem; /* Reducido de 1.1rem */
}

/* Botones de Acción en Listas */
.item-list .actions {
    display: flex;
    gap: 0.5rem;
}
.item-list .actions .btn-action {
    color: white;
    padding: 0.45rem 0.9rem; /* Reducido padding */
    border-radius: var(--border-radius);
    text-decoration: none;
    font-size: 0.85em; /* Reducido de 0.9em */
    font-weight: 500;
    transition: background-color 0.2s ease;
}
.btn-action.btn-delete {
    background: var(--color-danger);
}
.btn-action.btn-delete:hover {
    background: var(--color-danger-dark);
}
.btn-action.btn-edit {
    background: var(--color-warning);
    color: var(--color-text-dark);
}
.btn-action.btn-edit:hover {
    background: var(--color-warning-dark);
}


.image-preview { margin-top: 1rem; }
.image-preview img { max-width: 180px; height: auto; border: 1px solid #eee; border-radius: var(--border-radius); } /* Reducido de 200px */

/* --- Responsive (Móvil) --- */
@media (max-width: 768px) {
    .main-sidebar {
        transform: translateX(-260px); /* Oculto por defecto */
        box-shadow: none;
    }
    .main-sidebar.toggled {
        transform: translateX(0); /* Mostrar */
        box-shadow: 0 14px 28px rgba(0,0,0,0.25), 0 10px 10px rgba(0,0,0,0.22);
    }
    .content-wrapper {
        margin-left: 0;
    }
    .content-wrapper.toggled {
        /* Opcional: oscurecer el fondo al abrir el menú */
        /* position: relative; z-index: 1; */
    }
    .hamburger {
        display: block;
    }

    .content { padding: 1rem; }
    .content-container { padding: 1.5rem; }

    .item-list li {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    .item-list img {
        width: 100%;
        height: auto;
        max-width: 300px;
        margin-right: 0;
    }
    .item-list .actions {
        width: 100%;
        display: grid;
        grid-template-columns: 1fr 1fr;
    }
    .item-list .actions .btn-action {
        text-align: center;
    }
}