/* ============================================
   DOCUMENTOS — Hub y visor PDF
   ============================================ */

.page-header--compact {
    padding-bottom: var(--space-2xl);
}

/* Hub */
.docs-hub-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2xl);
    max-width: 900px;
    margin: 0 auto;
}

.docs-hub-card {
    display: block;
    text-decoration: none;
    color: inherit;
}

.docs-hub-card__inner {
    padding: var(--space-2xl) !important;
    text-align: center;
    min-height: 320px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
}

.docs-hub-card__icon {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-glow-blue);
    margin-bottom: var(--space-sm);
}

.docs-hub-card__icon--yellow {
    background: var(--gradient-accent);
    box-shadow: var(--shadow-glow-yellow);
}

.docs-hub-card__title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--color-white);
}

.docs-hub-card__desc {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    max-width: 320px;
}

.docs-hub-card__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    margin-top: var(--space-md);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-yellow);
    transition: gap var(--transition-bounce);
}

.docs-hub-card:hover .docs-hub-card__link {
    gap: var(--space-sm);
}

/* Visor */
.docs-section {
    padding-top: 0;
}

.docs-viewer {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: var(--space-xl);
    min-height: 75vh;
    align-items: start;
}

.docs-sidebar {
    position: sticky;
    top: calc(var(--navbar-height) + var(--space-lg));
    max-height: calc(100vh - var(--navbar-height) - var(--space-2xl));
    overflow-y: auto;
    background: var(--color-bg-card);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    backdrop-filter: blur(20px);
}

.docs-sidebar__group + .docs-sidebar__group {
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255,255,255,0.06);
}

.docs-sidebar__heading {
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-yellow);
    margin-bottom: var(--space-md);
}

.docs-sidebar__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.docs-sidebar__link {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    line-height: 1.45;
    color: var(--color-text-secondary);
    transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.docs-sidebar__link:hover {
    background: rgba(27,117,187,0.12);
    color: var(--color-white);
    transform: translateX(4px);
}

.docs-sidebar__link--active {
    background: rgba(27,117,187,0.2);
    color: var(--color-white);
    border-left: 3px solid var(--color-yellow);
}

.docs-sidebar__icon {
    flex-shrink: 0;
    font-size: 1rem;
    margin-top: 1px;
}

.docs-main {
    background: var(--color-bg-card);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    overflow: hidden;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-3d);
}

.docs-main__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-lg);
    padding: var(--space-xl);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    background: rgba(27,117,187,0.06);
}

.docs-main__title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    margin-top: var(--space-sm);
    line-height: 1.4;
}

.docs-main__download {
    flex-shrink: 0;
    padding: var(--space-sm) var(--space-lg) !important;
    font-size: 0.75rem !important;
}

.docs-main__frame-wrap {
    background: #1a1f2e;
    min-height: 70vh;
}

.docs-main__frame {
    width: 100%;
    height: 75vh;
    border: none;
    display: block;
}

.docs-main__empty {
    padding: var(--space-3xl);
    text-align: center;
    color: var(--color-text-muted);
}

@media (max-width: 1024px) {
    .docs-viewer {
        grid-template-columns: 1fr;
    }

    .docs-sidebar {
        position: static;
        max-height: none;
    }

    .docs-hub-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .docs-main__header {
        flex-direction: column;
    }

    .docs-main__frame {
        height: 60vh;
    }
}

/* Acceso protegido */
.docs-auth {
    display: flex;
    justify-content: center;
    padding: var(--space-2xl) 0 var(--space-4xl);
}

.docs-auth__card {
    width: 100%;
    max-width: 440px;
    padding: var(--space-3xl);
    background: var(--color-bg-card);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-3d);
    text-align: center;
}

.docs-auth__icon {
    font-size: 3rem;
    margin-bottom: var(--space-lg);
}

.docs-auth__title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
}

.docs-auth__desc {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
    font-size: 0.95rem;
}

.docs-auth__error {
    padding: var(--space-md);
    margin-bottom: var(--space-lg);
    background: rgba(220, 53, 69, 0.15);
    border: 1px solid rgba(220, 53, 69, 0.35);
    border-radius: var(--radius-md);
    color: #ff8a8a;
    font-size: 0.9rem;
}

.docs-auth__form {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    text-align: left;
    margin-bottom: var(--space-xl);
}

.docs-auth__form .btn {
    justify-content: center;
}

.docs-auth__back {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

.docs-auth__back:hover {
    color: var(--color-yellow);
}

.docs-auth-bar {
    position: sticky;
    top: var(--navbar-height);
    z-index: 100;
    background: rgba(46, 139, 60, 0.15);
    border-bottom: 1px solid rgba(46, 139, 60, 0.3);
    padding: var(--space-sm) 0;
}

.docs-auth-bar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    font-size: 0.85rem;
    color: var(--color-green-light);
    flex-wrap: wrap;
}

.docs-auth-bar__inner a {
    color: var(--color-text-secondary);
    font-weight: 600;
}

.docs-auth-bar__inner a:hover {
    color: var(--color-yellow);
}