/* 1. PALETA DE COLORES EXACTA Y VARIABLES */
:root {
    --bg-app: #f0f2f5;
    --dark-main: #1a1a1a;
    --accent-brand: #ff4500;
    --btn-save: #28a745;
    --btn-cancel: #dc3545;
    --btn-edit: #007bff;
    --btn-warning: #ffc107;
    --text-main: #333333;
    --text-secondary: #666666;
}

/* 2. ESTRUCTURA GLOBAL Y RESET */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-app);
    color: var(--text-main);
    height: 100vh;
    display: flex;
    /* ESTA ES LA CORRECCIÓN: Alinea el menú a la izquierda y el contenido a la derecha */
    flex-direction: row; 
    overflow: hidden; 
}

/* 3. COMPONENTES VISUALES */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    grid-auto-rows: 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.card {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 20px;
    display: flex;
    flex-direction: column;
    transition: 0.2s;
}

.card:active { transform: scale(0.95); }

.card-header {
    display: flex;
    justify-content: space-between;
    color: var(--text-secondary);
    font-weight: 600;
    margin-bottom: 10px;
}

.card-price {
    font-size: 2rem;
    font-weight: bold;
    color: var(--text-main);
    margin-top: auto; 
}

/* Formularios */
.form-group { margin-bottom: 15px; }
.form-group label { display: block; margin-bottom: 5px; font-weight: 600; color: var(--text-secondary); font-size: 0.9rem; }
.form-control {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    background-color: #fff;
    font-family: inherit;
    font-size: 1rem;
    outline: none;
}
.form-control:focus { border-color: var(--accent-brand); }

/* Botones Semánticos */
.btn {
    padding: 10px 15px; border: none; border-radius: 5px; cursor: pointer;
    font-family: inherit; font-weight: 600; display: inline-flex; align-items: center; gap: 8px;
    text-decoration: none; justify-content: center; transition: 0.2s;
}
.btn:hover { opacity: 0.85; }
.btn-brand { background-color: var(--accent-brand); color: #fff; }
.btn-success { background-color: var(--btn-save); color: #fff; }
.btn-danger { background-color: var(--btn-cancel); color: #fff; }
.btn-primary { background-color: var(--btn-edit); color: #fff; }
.btn-warning { background-color: var(--btn-warning); color: #000; }

.actions-bar {
    display: flex; gap: 15px; align-items: flex-end; background: #fff; 
    padding: 15px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); margin-bottom: 20px;
}

/* Tablas */
.table-wrapper {
    background-color: #fff; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    overflow-x: auto; max-height: 500px; overflow-y: auto;
}
table { width: 100%; border-collapse: collapse; text-align: left; }
th, td { padding: 15px; }
th { position: sticky; top: 0; background-color: var(--dark-main); color: #ffffff; font-weight: 600; z-index: 2; }
td { border-bottom: 1px solid #eeeeee; }
tr:hover td { background-color: #f5f5f5; }

/* Modales */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex; justify-content: center; align-items: center;
    z-index: 1050; opacity: 0; pointer-events: none; transition: opacity 0.3s;
}
.modal-overlay.active { opacity: 1; pointer-events: auto; }
.modal-content {
    background-color: #fff; width: 100%; max-width: 500px; border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.3); overflow: hidden;
    transform: translateY(-20px); transition: transform 0.3s;
}
.modal-overlay.active .modal-content { transform: translateY(0); }
.modal-header { background-color: var(--dark-main); color: #fff; padding: 15px 20px; display: flex; justify-content: space-between; }
.btn-close { background: none; border: none; color: var(--accent-brand); font-size: 1.5rem; cursor: pointer; }
.modal-body { padding: 20px; max-height: 70vh; overflow-y: auto; }
.modal-footer { padding: 15px 20px; background-color: var(--bg-app); display: flex; justify-content: flex-end; gap: 10px; border-top: 1px solid #ccc; }

/* 4. RESPONSIVIDAD (Mobile First) */
@media (max-width: 768px) {
    body { height: auto; overflow-y: auto; }
    .actions-bar { flex-direction: column; align-items: stretch; }
}