/* ============================================================
   estilos.css - Hoja de estilos compartida por las páginas
   Tema: Hamburguesería Retro / Small Burguer (Diner Style)
   ============================================================ */

:root {
    --color-rojo-ketchup: #d32f2f;
    --color-rojo-hover: #b71c1c;
    --color-amarillo-cheddar: #ffb300;
    --color-mostaza: #f57c00;
    --color-negro-diner: #1a1a1a;
    --color-gris-oscuro: #2c2c2c;
    --color-crema-fondo: #fdfbf7;
    --color-texto: #222222;
    --color-tarjeta: #ffffff;
    --color-borde: #e0e0e0;
    --color-exito: #2e7d32;
    --color-peligro: #c62828;
    --color-aviso: #ef6c00;
    --radio: 12px;
    --sombra: 0 4px 14px rgba(0, 0, 0, 0.12);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--color-crema-fondo);
    /* Fondo con ligero degradado retro */
    background-image: radial-gradient(#e0e0e0 1px, transparent 1px);
    background-size: 20px 20px;
    color: var(--color-texto);
    min-height: 100vh;
    padding-bottom: 40px;
}

/* ------------------------------------------------------------
   Barra Superior & Navegación Diner
   ------------------------------------------------------------ */
.barra-superior {
    background: var(--color-negro-diner);
    color: #ffffff;
    padding: 14px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    position: relative;
}

    /* Borde inferior con patrón de ajedrez (cuadros blanco y negro) */
    .barra-superior::after {
        content: "";
        position: absolute;
        bottom: -10px;
        left: 0;
        width: 100%;
        height: 10px;
        background-image: linear-gradient(45deg, #1a1a1a 25%, transparent 25%), linear-gradient(-45deg, #1a1a1a 25%, transparent 25%), linear-gradient(45deg, transparent 75%, #1a1a1a 75%), linear-gradient(-45deg, transparent 75%, #1a1a1a 75%);
        background-size: 10px 10px;
        background-position: 0 0, 0 5px, 5px -5px, -5px 0px;
        background-color: #ffffff;
    }

    .barra-superior h1 {
        margin: 0;
        font-size: 1.4rem;
        font-weight: 800;
        letter-spacing: 0.5px;
        color: var(--color-amarillo-cheddar);
        text-transform: uppercase;
    }

.navegacion {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}

    .navegacion a {
        color: #f5f5f5;
        text-decoration: none;
        padding: 8px 14px;
        border-radius: 8px;
        font-size: 0.9rem;
        font-weight: 700;
        transition: background 0.2s, color 0.2s;
    }

        .navegacion a:hover {
            background: var(--color-rojo-ketchup);
            color: #ffffff;
        }

        .navegacion a.activo {
            background: var(--color-amarillo-cheddar);
            color: var(--color-negro-diner);
        }

/* ------------------------------------------------------------
   Contenedores y Paneles
   ------------------------------------------------------------ */
.contenedor {
    max-width: 1100px;
    margin: 30px auto 0 auto;
    padding: 0 16px;
}

.panel {
    background: var(--color-tarjeta);
    border-radius: var(--radio);
    padding: 24px;
    box-shadow: var(--sombra);
    margin-bottom: 24px;
    border: 2px solid #1a1a1a;
}

    .panel h2 {
        margin-top: 0;
        margin-bottom: 16px;
        font-size: 1.3rem;
        color: var(--color-rojo-ketchup);
        border-bottom: 3px solid var(--color-amarillo-cheddar);
        padding-bottom: 8px;
        font-weight: 800;
        text-transform: uppercase;
    }

/* ------------------------------------------------------------
   Formularios e Inputs
   ------------------------------------------------------------ */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.campo {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

    .campo label {
        font-size: 0.85rem;
        font-weight: 700;
        color: var(--color-negro-diner);
    }

    .campo input,
    .campo select,
    .campo textarea {
        padding: 10px 12px;
        border: 2px solid var(--color-borde);
        border-radius: 8px;
        font-size: 0.95rem;
        font-family: inherit;
        transition: border-color 0.2s;
        background: #fff;
    }

        .campo input:focus,
        .campo select:focus,
        .campo textarea:focus {
            outline: none;
            border-color: var(--color-rojo-ketchup);
        }

/* ------------------------------------------------------------
   Botones Diner Style
   ------------------------------------------------------------ */
.boton {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.1s, background 0.2s;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

    .boton:active {
        transform: scale(0.97);
    }

.boton-primario {
    background: var(--color-rojo-ketchup);
    color: #ffffff;
}

    .boton-primario:hover {
        background: var(--color-rojo-hover);
    }

.boton-secundario {
    background: var(--color-amarillo-cheddar);
    color: var(--color-negro-diner);
}

    .boton-secundario:hover {
        background: #ffa000;
    }

.boton-exito {
    background: var(--color-exito);
    color: #ffffff;
}

.boton-peligro {
    background: var(--color-peligro);
    color: #ffffff;
}

.boton-aviso {
    background: var(--color-aviso);
    color: #ffffff;
}

.boton-neutro {
    background: #e0e0e0;
    color: var(--color-negro-diner);
}

.boton-pequeno {
    padding: 6px 10px;
    font-size: 0.8rem;
}

/* ------------------------------------------------------------
   Tablas
   ------------------------------------------------------------ */
.tabla-contenedor {
    overflow-x: auto;
    border-radius: 8px;
    border: 2px solid var(--color-negro-diner);
}

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

th {
    background: var(--color-negro-diner);
    color: var(--color-amarillo-cheddar);
    padding: 12px 14px;
    font-weight: 800;
    text-transform: uppercase;
}

td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--color-borde);
}

tr:nth-child(even) {
    background-color: #f9f9f9;
}

/* ------------------------------------------------------------
   Badges / Etiquetas
   ------------------------------------------------------------ */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
}

.badge-combo {
    background: #ffe082;
    color: #5d4037;
}

.badge-burguer {
    background: #ffcdd2;
    color: #b71c1c;
}

.badge-papas {
    background: #fff9c4;
    color: #f57f17;
}

.badge-bebida {
    background: #b2ebf2;
    color: #00838f;
}

.badge-helado {
    background: #f8bbd0;
    color: #c2185b;
}

.badge-neutral {
    background: #e0e0e0;
    color: #424242;
}

.badge-finalizada {
    background: #c8e6c9;
    color: #2e7d32;
}

.badge-proceso {
    background: #ffecb3;
    color: #ff6f00;
}

/* ------------------------------------------------------------
   Mensajes / Alert Box
   ------------------------------------------------------------ */
.mensaje {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 0.9rem;
    font-weight: 600;
    display: none;
}

    .mensaje.exito {
        display: block;
        background: #e8f5e9;
        color: #2e7d32;
        border: 1px solid #a5d6a7;
    }

    .mensaje.error {
        display: block;
        background: #ffebee;
        color: #c62828;
        border: 1px solid #ef9a9a;
    }

/* ------------------------------------------------------------
   Gestión de Imagen (URL vs Archivo)
   ------------------------------------------------------------ */
.pestanas-imagen {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
}

.pestana-imagen {
    padding: 6px 12px;
    border: 1px solid var(--color-borde);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    background: #f5f5f5;
}

    .pestana-imagen.activa {
        background: var(--color-rojo-ketchup);
        color: #ffffff;
        border-color: var(--color-rojo-ketchup);
    }

.vista-previa-imagen {
    max-width: 120px;
    max-height: 100px;
    object-fit: cover;
    border-radius: 8px;
    border: 2px solid var(--color-negro-diner);
    margin-top: 10px;
    display: none;
}

    .vista-previa-imagen.mostrar {
        display: block;
    }