/* =============================================================
   LAYOUT.CSS — Estrutura principal: topbar, sidebar, main
   ============================================================= */

/* ════════════════════════════════════════
   TOPBAR / NAVBAR
   ════════════════════════════════════════ */
.wikera-topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--topbar-height);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    padding: 0 1.25rem;
    z-index: 1040;
    gap: 1rem;
}

.wikera-topbar .brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    flex-shrink: 0;
    min-width: var(--sidebar-width);
}

.wikera-topbar .brand img {
    width: 36px;
    height: 36px;
    object-fit: contain;
}

.wikera-topbar .brand-name {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: .5px;
    text-transform: uppercase;
}

/* Barra de busca no topo */
.wikera-search {
    flex: 1;
    max-width: 480px;
}

.wikera-search .input-group {
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.wikera-search input {
    border: 1.5px solid var(--color-border);
    border-right: none;
    background: var(--color-bg);
    color: var(--color-text);
    padding: .45rem 1rem;
    font-size: .875rem;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.wikera-search input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.12);
    background: #fff;
    outline: none;
}

.wikera-search button {
    background: var(--color-primary);
    border: 1.5px solid var(--color-primary);
    color: #fff;
    padding: .45rem 1.1rem;
    font-size: .875rem;
    cursor: pointer;
    transition: background var(--transition);
}

.wikera-search button:hover {
    background: var(--color-primary-dark);
}

/* Links de navegação no topo */
.wikera-topbar .topbar-nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-left: auto;
}

.wikera-topbar .topbar-nav a {
    display: flex;
    align-items: center;
    gap: .35rem;
    padding: .4rem .75rem;
    border-radius: var(--radius-md);
    font-size: .85rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-decoration: none;
    transition: background var(--transition), color var(--transition);
    white-space: nowrap;
}

.wikera-topbar .topbar-nav a:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
    text-decoration: none;
}

.wikera-topbar .topbar-nav a.active {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.wikera-topbar .topbar-nav .btn-topbar-primary {
    background: var(--color-primary);
    color: #fff;
    padding: .4rem .9rem;
}

.wikera-topbar .topbar-nav .btn-topbar-primary:hover {
    background: var(--color-primary-dark);
    color: #fff;
}

/* Botão hamburguer (mobile) */
.sidebar-toggle-btn {
    background: none;
    border: none;
    padding: .4rem .6rem;
    cursor: pointer;
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    display: none;
}

.sidebar-toggle-btn:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

/* ════════════════════════════════════════
   WRAPPER GERAL (sidebar + conteúdo)
   ════════════════════════════════════════ */
.wikera-wrapper {
    display: flex;
    min-height: 100vh;
    padding-top: var(--topbar-height);
}

/* ════════════════════════════════════════
   SIDEBAR
   ════════════════════════════════════════ */
.wikera-sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    position: fixed;
    top: var(--topbar-height);
    left: 0;
    bottom: 0;
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    overflow-y: auto;
    padding: 1.25rem 0;
    z-index: 1030;
    transition: transform 0.25s ease;
}

.sidebar-section {
    padding: 0 1rem 1rem;
}

.sidebar-section + .sidebar-section {
    border-top: 1px solid var(--color-border-light);
    padding-top: 1rem;
}

.sidebar-label {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-light);
    padding: 0 .5rem;
    margin-bottom: .5rem;
    display: block;
}

.sidebar-nav {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-nav li a {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .4rem .75rem;
    border-radius: var(--radius-md);
    font-size: .875rem;
    color: var(--color-text-muted);
    text-decoration: none;
    transition: background var(--transition), color var(--transition);
}

.sidebar-nav li a:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
    text-decoration: none;
}

.sidebar-nav li a.active {
    background: var(--color-primary-light);
    color: var(--color-primary);
    font-weight: 600;
}

/* Badge de categoria na sidebar */
.sidebar-cat-badge {
    margin-left: auto;
    font-size: .65rem;
    background: var(--color-border);
    color: var(--color-text-muted);
    padding: 1px 6px;
    border-radius: 99px;
}

/* ════════════════════════════════════════
   ÁREA DE CONTEÚDO PRINCIPAL
   ════════════════════════════════════════ */
.wikera-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    min-width: 0;
    padding: 2rem 2.5rem;
}

/* ════════════════════════════════════════
   FOOTER
   ════════════════════════════════════════ */
.wikera-footer {
    margin-left: var(--sidebar-width);
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: 1.25rem 2.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: .5rem;
    font-size: .8rem;
    color: var(--color-text-muted);
}

.wikera-footer a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color var(--transition);
}

.wikera-footer a:hover {
    color: var(--color-primary);
}

/* ════════════════════════════════════════
   RESPONSIVO
   ════════════════════════════════════════ */
@media (max-width: 991.98px) {
    .wikera-sidebar {
        transform: translateX(-100%);
    }

    .wikera-sidebar.sidebar-open {
        transform: translateX(0);
    }

    .wikera-content {
        margin-left: 0;
        padding: 1.5rem 1.25rem;
    }

    .wikera-footer {
        margin-left: 0;
        padding: 1rem 1.25rem;
    }

    .sidebar-toggle-btn {
        display: flex;
        align-items: center;
    }

    .wikera-topbar .brand {
        min-width: auto;
    }
}

@media (max-width: 575.98px) {
    .wikera-content {
        padding: 1rem .75rem;
    }

    .wikera-search {
        display: none;
    }
}

/* Overlay do menu mobile */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.35);
    z-index: 1025;
}

.sidebar-overlay.active {
    display: block;
}