/* === Sprint 35: User Panel Sidebar === */
.user-sidebar {
    width: 260px;
    min-height: 100vh;
    background: linear-gradient(180deg, #1F1F1F 0%, #2D1419 100%);
    color: #E5E7EB;
    display: flex;
    flex-direction: column;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    font-family: 'Nunito', system-ui, sans-serif;
}
.user-sidebar__brand { padding: 0 1.25rem 1rem; border-bottom: 1px solid rgba(255,255,255,0.08); }
.user-sidebar__logo { display: flex; align-items: center; gap: 0.5rem; color: #FFF; text-decoration: none; font-family: 'Playfair Display', serif; font-size: 1.25rem; }
.user-sidebar__logo span { font-size: 1.4rem; }

.user-sidebar__profile { display: flex; align-items: center; gap: 0.75rem; padding: 1rem 1.25rem; border-bottom: 1px solid rgba(255,255,255,0.08); }
.user-sidebar__avatar { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }
.user-sidebar__avatar--initial { display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #C9184A, #D4A24C); color: #FFF; font-weight: 700; font-size: 1.1rem; }
.user-sidebar__user { flex: 1; min-width: 0; }
.user-sidebar__name { font-weight: 700; color: #FFF; font-size: 0.9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-sidebar__email { font-size: 0.75rem; color: #9CA3AF; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.user-sidebar__cta { display: flex; align-items: center; justify-content: center; gap: 0.4rem; margin: 1rem 1.25rem; padding: 0.7rem 1rem; background: linear-gradient(135deg, #C9184A, #A0153F); color: #FFF; font-weight: 700; border-radius: 10px; text-decoration: none; transition: transform .15s ease, box-shadow .15s ease; }
.user-sidebar__cta:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(201, 24, 74, 0.4); }

.user-sidebar__nav { flex: 1; padding: 0.5rem 0; overflow-y: auto; }
.user-sidebar__section { padding: 0.85rem 1.25rem 0.4rem; font-size: 0.7rem; font-weight: 700; color: #6B7280; text-transform: uppercase; letter-spacing: 0.05em; }
.user-sidebar__link { display: flex; align-items: center; gap: 0.75rem; padding: 0.6rem 1.25rem; color: #D1D5DB; text-decoration: none; font-size: 0.9rem; font-weight: 500; transition: all .15s ease; border-left: 3px solid transparent; }
.user-sidebar__link:hover { background: rgba(255,255,255,0.05); color: #FFF; border-left-color: rgba(201, 24, 74, 0.5); }
.user-sidebar__link.is-active { background: rgba(201, 24, 74, 0.15); color: #FFF; border-left-color: #C9184A; font-weight: 700; }
.user-sidebar__icon { font-size: 1.05rem; width: 22px; text-align: center; }

.user-sidebar__footer { padding: 1rem 1.25rem; border-top: 1px solid rgba(255,255,255,0.08); display: flex; flex-direction: column; gap: 0.5rem; }
.user-sidebar__site-link, .user-sidebar__logout { color: #9CA3AF; text-decoration: none; font-size: 0.85rem; padding: 0.4rem 0; }
.user-sidebar__site-link:hover, .user-sidebar__logout:hover { color: #FFF; }
.user-sidebar__logout { color: #F87171; }
.user-sidebar__logout:hover { color: #FCA5A5; }

/* Layout containing sidebar */
.user-layout { display: flex; min-height: 100vh; background: #F9FAFB; }
.user-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.user-content { flex: 1; padding: 2rem; max-width: 1280px; width: 100%; margin: 0 auto; }

/* Mobile */
@media (max-width: 900px) {
    .user-layout { flex-direction: column; }
    .user-sidebar { width: 100%; min-height: auto; position: relative; }
    .user-sidebar__nav { display: flex; overflow-x: auto; padding: 0 1rem; }
    .user-sidebar__section { display: none; }
    .user-sidebar__link { flex-shrink: 0; border-left: 0; border-bottom: 3px solid transparent; padding: 0.5rem 0.75rem; }
    .user-sidebar__link.is-active { border-left: 0; border-bottom-color: #C9184A; }
    .user-sidebar__profile, .user-sidebar__cta { display: none; }
    .user-content { padding: 1rem; }
}

/* Flash messages en panel */
.flash { padding: 0.9rem 1.25rem; border-radius: 10px; margin-bottom: 1.25rem; font-weight: 500; }
.flash-success { background: #d1fae5; color: #065f46; border-left: 4px solid #10b981; }
.flash-error { background: #fee2e2; color: #991b1b; border-left: 4px solid #ef4444; }