/* ==============================================================
   COMPONENTS — cards, botões, tabelas, forms, badges, alerts
   ============================================================== */

/* ====== Layout da área principal ====== */
.app-main {
    margin-left: var(--sidebar-width);
    padding-top: var(--topbar-height);
    min-height: 100vh;
    transition: margin-left var(--t);
}
body.sidebar-collapsed .app-main { margin-left: var(--sidebar-collapsed-width); }
body.sidebar-hidden .app-main,
body.layout-horizontal .app-main { margin-left: 0; }

@media (max-width: 768px) {
    .app-main { margin-left: 0 !important; }
}

.page-wrapper {
    padding: 24px;
    max-width: var(--content-max-width);
    margin: 0 auto;
}

/* Page header (título + ações) */
.page-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}
.page-header h1 {
    margin: 0;
    font-size: 1.5rem;
}
.page-header .subtitle {
    margin-top: 4px;
    color: var(--text-muted);
    font-size: 0.88rem;
}
.page-header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    list-style: none;
    margin: 0 0 6px 0;
    padding: 0;
    font-size: 0.78rem;
    color: var(--text-muted);
}
.breadcrumb li a { color: var(--text-muted); }
.breadcrumb li a:hover { color: var(--color-primary); }
.breadcrumb li.active { color: var(--text-primary); font-weight: 500; }
.breadcrumb li + li::before {
    content: '/';
    margin: 0 2px;
    color: var(--text-muted);
}

/* ====== Cards ====== */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: box-shadow var(--t-fast), transform var(--t-fast);
}
.card:hover { box-shadow: var(--shadow); }

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.card-header h3, .card-header h4, .card-header h5, .card-header h6 {
    margin: 0;
}
.card-body { padding: 20px; }
.card-footer {
    padding: 14px 20px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-surface-alt);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
}

/* Stat card */
.stat-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: transform var(--t-fast), box-shadow var(--t-fast);
}
.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}
.stat-card-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}
.stat-card-icon.icon-primary { background: var(--color-primary-soft); color: var(--color-primary); }
.stat-card-icon.icon-success { background: var(--color-success-soft); color: var(--color-success); }
.stat-card-icon.icon-warning { background: var(--color-warning-soft); color: var(--color-warning); }
.stat-card-icon.icon-danger { background: var(--color-danger-soft); color: var(--color-danger); }

.stat-card-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 4px;
    font-weight: 600;
}
.stat-card-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.1;
    letter-spacing: -0.02em;
}
.stat-card-delta {
    font-size: 0.78rem;
    font-weight: 600;
    margin-top: 4px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.stat-card-delta.up { color: var(--color-success); }
.stat-card-delta.down { color: var(--color-danger); }

/* ====== Grid responsivo ====== */
.grid {
    display: grid;
    gap: var(--gutter);
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ====== Botões ====== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 9px 16px;
    border-radius: var(--radius);
    border: 1px solid transparent;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast), transform var(--t-fast);
    white-space: nowrap;
    text-decoration: none;
    user-select: none;
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

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

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-color-strong);
}
.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}
.btn-ghost:hover {
    background: var(--bg-surface-alt);
    color: var(--text-primary);
}

.btn-success { background: var(--color-success); color: #fff; }
.btn-success:hover { background: #059669; color: #fff; }

.btn-danger { background: var(--color-danger); color: #fff; }
.btn-danger:hover { background: #dc2626; color: #fff; }

.btn-sm { padding: 6px 10px; font-size: 0.78rem; }
.btn-lg { padding: 12px 22px; font-size: 0.95rem; }
.btn-icon { width: 36px; height: 36px; padding: 0; }

/* ====== Badges ====== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 600;
    line-height: 1.3;
}
.badge-primary { background: var(--color-primary-soft); color: var(--color-primary-dark); }
.badge-success { background: var(--color-success-soft); color: #047857; }
.badge-warning { background: var(--color-warning-soft); color: #b45309; }
.badge-danger { background: var(--color-danger-soft); color: #b91c1c; }
.badge-info { background: var(--color-info-soft); color: #1e40af; }
.badge-neutral { background: var(--bg-surface-alt); color: var(--text-secondary); }

/* ====== Tabelas (HTML puro, sem DataTables) ====== */
.table-wrap {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.table-wrap .table-controls {
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}
.table-wrap .table-controls .search-input {
    min-width: 240px;
    max-width: 320px;
    flex: 1;
}
.table-scroll { overflow-x: auto; }

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}
.table thead th {
    padding: 12px 16px;
    background: var(--bg-surface-alt);
    color: var(--text-secondary);
    font-weight: 600;
    text-align: left;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
    cursor: pointer;
    user-select: none;
}
.table thead th.sortable::after {
    content: '⇅';
    margin-left: 6px;
    opacity: 0.3;
    font-size: 0.7rem;
}
.table thead th.sortable.asc::after { content: '↑'; opacity: 1; color: var(--color-primary); }
.table thead th.sortable.desc::after { content: '↓'; opacity: 1; color: var(--color-primary); }

.table tbody td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    vertical-align: middle;
}
.table tbody tr:last-child td { border-bottom: none; }
.table tbody tr:hover td { background: var(--bg-surface-alt); }

.table-compact tbody td,
.table-compact thead th { padding: 8px 12px; }

/* Paginação */
.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 20px;
    border-top: 1px solid var(--border-color);
    flex-wrap: wrap;
}
.pagination-info {
    color: var(--text-muted);
    font-size: 0.82rem;
}
.pagination-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}
.pagination-nav button {
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-surface);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast);
}
.pagination-nav button:hover {
    background: var(--bg-surface-alt);
    color: var(--text-primary);
}
.pagination-nav button.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}
.pagination-nav button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ====== Formulários ====== */
.form-group { margin-bottom: 16px; }
.form-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}
.form-label .required { color: var(--color-danger); margin-left: 2px; }

.form-control {
    width: 100%;
    padding: 9px 14px;
    font-family: inherit;
    font-size: 0.88rem;
    color: var(--text-primary);
    background: var(--bg-surface);
    border: 1px solid var(--border-color-strong);
    border-radius: var(--radius);
    transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(74, 127, 224, 0.15);
}
.form-control::placeholder { color: var(--text-muted); }
.form-control[disabled] { background: var(--bg-surface-alt); cursor: not-allowed; }

textarea.form-control { resize: vertical; min-height: 90px; }

.form-help {
    font-size: 0.76rem;
    color: var(--text-muted);
    margin-top: 4px;
}
.form-error {
    font-size: 0.76rem;
    color: var(--color-danger);
    margin-top: 4px;
}

/* Checkbox e radio customizados */
.form-check {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    user-select: none;
}
.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    width: 16px;
    height: 16px;
    accent-color: var(--color-primary);
    cursor: pointer;
}

/* Switch */
.form-switch {
    position: relative;
    display: inline-block;
    width: 40px;
    height: 22px;
}
.form-switch input { opacity: 0; width: 0; height: 0; }
.form-switch .slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: var(--border-color-strong);
    border-radius: 22px;
    transition: background var(--t-fast);
}
.form-switch .slider::before {
    content: '';
    position: absolute;
    height: 16px;
    width: 16px;
    left: 3px;
    top: 3px;
    background: #fff;
    border-radius: 50%;
    transition: transform var(--t-fast);
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.form-switch input:checked + .slider { background: var(--color-primary); }
.form-switch input:checked + .slider::before { transform: translateX(18px); }

/* ====== Alertas ====== */
.alert {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius);
    border-left: 4px solid;
    background: var(--bg-surface);
    margin-bottom: 16px;
    font-size: 0.88rem;
}
.alert-icon { font-size: 1.1rem; flex-shrink: 0; margin-top: 2px; }
.alert-body { flex: 1; }
.alert-title { font-weight: 600; margin-bottom: 2px; }

.alert-primary { background: var(--color-primary-soft); border-color: var(--color-primary); color: #1e3a8a; }
.alert-success { background: var(--color-success-soft); border-color: var(--color-success); color: #065f46; }
.alert-warning { background: var(--color-warning-soft); border-color: var(--color-warning); color: #92400e; }
.alert-danger  { background: var(--color-danger-soft);  border-color: var(--color-danger);  color: #991b1b; }
.alert-info    { background: var(--color-info-soft);    border-color: var(--color-info);    color: #1e40af; }

/* ====== Avatar / lista compacta ====== */
.avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: #fff;
    font-weight: 700;
    font-size: 0.82rem;
    flex-shrink: 0;
}
.avatar-sm { width: 28px; height: 28px; font-size: 0.72rem; }
.avatar-lg { width: 52px; height: 52px; font-size: 1rem; }

/* ====== Empty state ====== */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-muted);
}
.empty-state .icon {
    font-size: 3rem;
    margin-bottom: 12px;
    opacity: 0.4;
}
.empty-state h4 {
    color: var(--text-secondary);
    margin-bottom: 4px;
}