:root {
    --color-fondo: #2e261f;
    --color-texto-principal: #f5e6b1;
    --color-dorado-claro: #ffdf6c;
    --color-dorado-oscuro: #9c7f3f;
    --color-btn-fondo: #503c27;
    --color-btn-hover: #69523b;
    --color-panel: #1a1511;
    --color-error: #d9534f;
    --color-exito: #5cb85c;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Georgia', serif;
    background-color: var(--color-fondo);
    color: var(--color-texto-principal);
    line-height: 1.5;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* HEADER */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 5%;
    background-color: var(--color-panel);
    border-bottom: 1px solid rgba(156, 127, 63, 0.3);
    flex-wrap: wrap;
    gap: 15px;
}
.logo img {
    width: 160px;
    height: 160px;
    filter: sepia(0.8) hue-rotate(30deg) brightness(1.2);
    transition: transform 0.3s;
}
.logo:hover img {
    transform: scale(1.05);
}
.nav-principal a {
    color: var(--color-texto-principal);
    text-decoration: none;
    margin-left: 25px;
    font-size: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.nav-principal a:hover {
    color: var(--color-dorado-claro);
}

/* MAIN Y CONTENEDOR PRINCIPAL */
main {
    flex: 1;
    padding: 30px 5%;
}
.container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    gap: 25px;
    align-items: flex-start;
}

/* SIDEBAR (MENÚ LATERAL) */
.sidebar {
    flex: 0 0 260px;   /* Ancho fijo, no se encoge */
    background: var(--color-panel);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid var(--color-dorado-oscuro);
    align-self: start;
}
.sidebar ul {
    list-style: none;
    padding: 0;
}
.sidebar li {
    margin-bottom: 8px;
}
.sidebar a {
    display: block;
    padding: 10px 15px;
    color: var(--color-texto-principal);
    text-decoration: none;
    border-radius: 8px;
    transition: 0.2s;
}
.sidebar a:hover, .sidebar a.active {
    background: var(--color-btn-fondo);
    color: var(--color-dorado-claro);
}

/* CONTENIDO PRINCIPAL (donde van las cards) */
.contenido-principal {
    flex: 1;  /* Ocupa todo el espacio restante */
    min-width: 0; /* Evita desbordamiento */
}

/* CARDS */
.card {
    background: var(--color-panel);
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 25px;
    border: 1px solid var(--color-dorado-oscuro);
}
.card h2, .card h3 {
    color: var(--color-dorado-claro);
    font-family: 'Pirata One', cursive;
    margin-bottom: 15px;
}

/* FORMULARIOS */
input, select, textarea {
    width: 100%;
    padding: 12px;
    margin: 8px 0 16px;
    border-radius: 8px;
    border: 1px solid var(--color-dorado-oscuro);
    background: #1f1a14;
    color: var(--color-texto-principal);
    font-size: 16px;
}
label {
    display: block;
    margin-top: 10px;
    font-weight: bold;
    color: var(--color-dorado-claro);
}
button, .btn, input[type="submit"] {
    background-color: var(--color-btn-fondo);
    color: var(--color-texto-principal);
    padding: 12px 24px;
    text-decoration: none;
    text-transform: uppercase;
    font-weight: bold;
    border: 2px solid var(--color-dorado-oscuro);
    display: inline-block;
    transition: all 0.3s;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
}
button:hover, .btn:hover, input[type="submit"]:hover {
    background-color: var(--color-btn-hover);
    border-color: var(--color-dorado-claro);
}

/* TABLAS */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}
th, td {
    padding: 12px;
    border-bottom: 1px solid var(--color-dorado-oscuro);
    text-align: left;
}
th {
    background: var(--color-btn-fondo);
    color: var(--color-dorado-claro);
}

/* ENLACES GENERALES */
a {
    color: var(--color-dorado-claro);
    text-decoration: none;
    transition: color 0.2s;
}
a:hover {
    color: var(--color-texto-principal);
    text-decoration: underline;
}

/* FOOTER */
footer {
    background: var(--color-panel);
    padding: 20px;
    text-align: center;
    border-top: 1px solid var(--color-dorado-oscuro);
    margin-top: 40px;
}
footer a {
    color: var(--color-dorado-claro);
    text-decoration: underline;
    margin: 0 10px;
}
footer a:hover {
    color: var(--color-texto-principal);
}

/* MENSAJES FLASH */
.alert-success, .alert-info {
    background: var(--color-exito);
    color: #000;
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 15px;
}
.alert-error {
    background: var(--color-error);
    color: #fff;
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 15px;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .container {
        flex-direction: column !important;
        flex-wrap: wrap !important;
    }
    .sidebar {
        width: 100%;
        flex: auto;
        margin-bottom: 20px;
        order: 2;
    }
    .contenido-principal {
        order: 1;
    }
    header {
        flex-direction: column;
        text-align: center;
    }
    .logo img {
        width: 100px;
        height: 100px;
    }
    .nav-principal a {
        margin: 5px 10px;
        font-size: 12px;
    }
    /* Tablas responsivas */
    table, thead, tbody, th, td, tr {
        display: block;
    }
    thead {
        display: none;
    }
    tr {
        margin-bottom: 15px;
        border: 1px solid var(--color-dorado-oscuro);
        border-radius: 8px;
        padding: 10px;
    }
    td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 8px 10px;
        border-bottom: none;
    }
    td::before {
        content: attr(data-label);
        font-weight: bold;
        width: 40%;
        color: var(--color-dorado-claro);
    }
}
/* FIX FORZADO PARA LAYOUT DE USUARIO */
body.usuario .container {
    display: flex !important;
    flex-direction: row !important;
    align-items: stretch !important;
}
body.usuario .sidebar {
    flex: 0 0 260px !important;
    margin-right: 25px !important;
}
body.usuario .contenido-principal {
    flex: 1 !important;
}