:root {
    --color-primario: #1c3c6c;
    --color-secundario: #15305a;
    --color-borde: #0f2240;

    --color-blanco: #ffffff;
    --color-blanco-75: rgba(255,255,255,0.75);
    --color-blanco-60: rgba(255,255,255,0.6);
    --color-blanco-50: rgba(255,255,255,0.5);
    --color-blanco-45: rgba(255,255,255,0.45);
    --color-blanco-30: rgba(255,255,255,0.3);
}

/* General */
html, body {
    height: 100%;
    margin: 0;
    display: flex;
    flex-direction: column;
}

body {
    font-size: 16px;
}

.container {
    flex: 1;
}

/* header */
.hdr {
    background-color: var(--color-primario);
    min-height: 75px;
    display: flex;
    align-items: center;
    padding: 0 2rem;
    box-shadow: 0 2px 6px rgba(0,0,0,0.25);
}

.hdr-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.hdr-titulo {
    color: var(--color-blanco);
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.2px;
    white-space: nowrap;
}

.hdr-logo {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hdr-usuario {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.hdr-usuario-info {
    text-align: right;
    line-height: 1.4;
}

.hdr-usuario-nombre {
    color: var(--color-blanco);
    font-weight: 600;
    font-size: 0.95rem;
}

.hdr-usuario-rol {
    color: var(--color-blanco-50);
    font-size: 0.8rem;
}

/* Botón salir */
.hdr-btn-salir {
    background-color: #c0392b;
    color: var(--color-blanco);
    border: 1.5px solid var(--color-blanco);
    border-radius: 5px;
    padding: 0.35rem 0.9rem;
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    white-space: nowrap;
    transition: background-color 0.2s ease;
    cursor: pointer;
}

.hdr-btn-salir:hover {
    background-color: #a93226;
}

/* nav */
.hdr-nav {
    background-color: var(--color-secundario);
    border-bottom: 2px solid var(--color-borde);
    padding: 0 2rem;
    display: flex;
    align-items: center;
}

.hdr-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 0.25rem;
}

.hdr-nav ul li a {
    display: block;
    color: var(--color-blanco-60);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.65rem 1rem;
    border-radius: 4px;
    transition: color 0.2s, background-color 0.2s;
}

.hdr-nav ul li a:hover {
    color: var(--color-blanco);
    background-color: rgba(255,255,255,0.1);
}

.hdr-nav ul li a.activo {
    color: var(--color-blanco);
    background-color: rgba(255,255,255,0.18);
    font-weight: 600;
}

/* footer */
.ftr {
    background-color: var(--color-primario);
    margin-top: 3rem;
    box-shadow: 0 -2px 6px rgba(0,0,0,0.2);
}

.ftr-recursos {
    padding: 0 2rem;
}

.ftr-acordeon-btn {
    width: 100%;
    background: none;
    border: none;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    color: var(--color-blanco-75);
    font-size: 0.9rem;
    font-weight: 600;
    text-align: left;
    padding: 0.9rem 0;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color 0.2s;
}

.ftr-acordeon-btn:hover {
    color: var(--color-blanco);
}

.ftr-chevron {
    font-size: 0.75rem;
    transition: transform 0.3s ease;
}

.ftr-acordeon-btn.abierto .ftr-chevron {
    transform: rotate(180deg);
}

.ftr-acordeon-body {
    display: none;
    padding: 1rem 0;
}

.ftr-acordeon-body.visible {
    display: block;
}

.ftr-recursos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.75rem;
}

.ftr-recurso-item {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    background-color: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 6px;
    padding: 0.65rem 0.85rem;
    text-decoration: none;
    transition: background-color 0.2s;
}

.ftr-recurso-item:hover {
    background-color: rgba(255,255,255,0.14);
}

.ftr-recurso-icono {
    font-size: 1.3rem;
}

.ftr-recurso-nombre {
    color: var(--color-blanco);
    font-size: 0.85rem;
    font-weight: 600;
    line-height: 1.2;
}

.ftr-recurso-desc {
    color: var(--color-blanco-50);
    font-size: 0.75rem;
}

.ftr-proximamente {
    color: var(--color-blanco-45);
    font-size: 0.85rem;
    padding: 0.5rem 0;
    font-style: italic;
}

.ftr-barra-inferior {
    background-color: var(--color-secundario);
    border-top: 1px solid var(--color-borde);
    padding: 0.6rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.ftr-copy {
    color: var(--color-blanco-45);
    font-size: 0.8rem;
}

.ftr-version {
    color: var(--color-blanco-30);
    font-size: 0.75rem;
}