/* ============================================================
   Memory Game Admin — Design System
   Baseado no template System Designer
   ============================================================ */

/* ---- Tokens ---- */
:root {
    --primary:         #4F46E5;
    --primary-hover:   #4338CA;
    --primary-light:   #EEF2FF;
    --secondary:       #8B5CF6;
    --success:         #10B981;
    --warning:         #F59E0B;
    --danger:          #EF4444;
    --info:            #3B82F6;
    --bg:              #F8FAFC;
    --surface:         #FFFFFF;
    --surface-2:       #F1F5F9;
    --border:          #E2E8F0;
    --text-primary:    #373737;
    --text-secondary:  #64748B;
    --text-muted:      #94A3B8;
    --sidebar-w:       260px;
    --sidebar-w-col:   64px;
    --topbar-h:        64px;
    --radius:          10px;
    --radius-lg:       16px;
    --font:            'Inter', system-ui, sans-serif;
    --shadow:          0 1px 4px rgba(0,0,0,0.08);
    --shadow-md:       0 4px 16px rgba(0,0,0,0.1);
}

body.dark-mode {
    --primary-light:  #2d2a4a;
    --bg:             #1e1e1e;
    --surface:        #252526;
    --surface-2:      #2d2d2d;
    --border:         #3c3c3c;
    --text-primary:   #d4d4d4;
    --text-secondary: #9d9d9d;
    --text-muted:     #6d6d6d;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font); background: var(--bg); color: var(--text-primary); line-height: 1.5; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: var(--font); }

/* ---- Layout Shell ---- */
.panel-page { display: flex; min-height: 100vh; }

/* ---- Sidebar ---- */
.sidebar {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    width: var(--sidebar-w);
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 200;
    transition: width 0.3s ease, transform 0.3s ease;
    overflow: hidden;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 16px;
    height: var(--topbar-h);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.brand-icon {
    display: flex; align-items: center; justify-content: center;
    width: 36px; height: 36px; min-width: 36px;
    background: var(--primary-light);
    border-radius: 10px;
    color: var(--primary);
    font-size: 1.1rem;
}

.brand-text {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    transition: opacity 0.2s;
}

.sidebar-nav {
    flex: 1;
    padding: 12px 10px;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
    transition: background 0.15s, color 0.15s;
    text-decoration: none;
}

.nav-item i { font-size: 1.05rem; min-width: 20px; text-align: center; }
.nav-item span { overflow: hidden; }
.nav-item:hover { background: var(--surface-2); color: var(--text-primary); text-decoration: none; }
.nav-item.active { background: var(--primary-light); color: var(--primary); font-weight: 600; }

.nav-divider {
    height: 1px;
    background: var(--border);
    margin: 8px 0;
}

.nav-label {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 6px 12px 4px;
    white-space: nowrap;
}

.sidebar-footer {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}

.user-avatar {
    width: 34px; height: 34px; min-width: 34px;
    border-radius: 50%;
    background: var(--primary-light);
    display: flex; align-items: center; justify-content: center;
    color: var(--primary);
    font-size: 1rem;
}

.user-meta { flex: 1; min-width: 0; overflow: hidden; }
.user-name { display: block; font-size: 0.82rem; font-weight: 600; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { display: block; font-size: 0.7rem; color: var(--text-muted); }

.btn-logout {
    display: flex; align-items: center; justify-content: center;
    width: 32px; height: 32px; min-width: 32px;
    border-radius: 8px;
    color: var(--text-muted);
    transition: background 0.15s, color 0.15s;
    text-decoration: none;
}
.btn-logout:hover { background: #fef2f2; color: var(--danger); text-decoration: none; }

/* Sidebar collapsed */
body.sidebar-collapsed .sidebar { width: var(--sidebar-w-col); }
body.sidebar-collapsed .brand-text,
body.sidebar-collapsed .nav-item span,
body.sidebar-collapsed .nav-label,
body.sidebar-collapsed .user-meta,
body.sidebar-collapsed .btn-logout { opacity: 0; pointer-events: none; }
body.sidebar-collapsed .sidebar-footer { justify-content: center; }
body.sidebar-collapsed .nav-item { justify-content: center; padding: 10px; }
body.sidebar-collapsed .sidebar-brand { justify-content: center; }

/* Sidebar overlay (mobile) */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.45);
    z-index: 199;
}
.sidebar-overlay.active { display: block; }

/* ---- Topbar ---- */
.main-wrapper {
    flex: 1;
    margin-left: var(--sidebar-w);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left 0.3s ease;
}
body.sidebar-collapsed .main-wrapper { margin-left: var(--sidebar-w-col); }

.topbar {
    position: sticky;
    top: 0;
    height: var(--topbar-h);
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    z-index: 100;
    gap: 12px;
}

.topbar-left, .topbar-right { display: flex; align-items: center; gap: 8px; }

.topbar-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* ---- Botões ---- */
.btn-icon {
    display: flex; align-items: center; justify-content: center;
    width: 40px; height: 40px;
    border: none; background: none;
    border-radius: var(--radius);
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: background 0.15s, color 0.15s;
    text-decoration: none;
}
.btn-icon:hover { background: var(--surface-2); color: var(--text-primary); }
.btn-icon-sm { width: 34px; height: 34px; font-size: 0.95rem; }
.btn-icon--danger:hover  { background: #fef2f2; color: var(--danger); }
.btn-icon--success:hover { background: #f0fdf4; color: var(--success); }

.btn-menu, .btn-sidebar-toggle {
    display: flex; align-items: center; justify-content: center;
    width: 38px; height: 38px;
    border: none; background: none;
    border-radius: var(--radius);
    color: var(--text-secondary);
    font-size: 1.15rem;
    transition: background 0.15s, color 0.15s;
}
.btn-menu:hover, .btn-sidebar-toggle:hover { background: var(--surface-2); color: var(--text-primary); }
.btn-menu { display: none; }

.btn-primary {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--primary); color: #fff;
    border: none; border-radius: var(--radius);
    font-size: 0.875rem; font-weight: 600;
    padding: 9px 18px;
    transition: background 0.15s, box-shadow 0.15s;
}
.btn-primary:hover { background: var(--primary-hover); box-shadow: 0 2px 8px rgba(79,70,229,0.25); }

.btn-secondary {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--surface-2); color: var(--text-primary);
    border: 1px solid var(--border); border-radius: var(--radius);
    font-size: 0.875rem; font-weight: 500;
    padding: 9px 18px;
    transition: background 0.15s;
}
.btn-secondary:hover { background: var(--border); }

.btn-danger {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--danger); color: #fff;
    border: none; border-radius: var(--radius);
    font-size: 0.875rem; font-weight: 600;
    padding: 9px 18px;
}
.btn-danger:hover { background: #dc2626; }

.btn-full { width: 100%; justify-content: center; }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }

/* ---- Main Content ---- */
.main-content {
    flex: 1;
    padding: 28px 28px;
}

/* ---- Page Header ---- */
.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.page-header-left h2 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.page-header-left p {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin: 0;
}

/* ---- KPI Cards ---- */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.kpi-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    transition: box-shadow 0.2s;
}
.kpi-card:hover { box-shadow: var(--shadow-md); }

.kpi-card__inner { display: flex; align-items: flex-start; gap: 14px; }

.kpi-icon {
    width: 44px; height: 44px; min-width: 44px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem;
}
.kpi-icon--indigo { background: #EEF2FF; color: #4F46E5; }
.kpi-icon--green  { background: #F0FDF4; color: #10B981; }
.kpi-icon--amber  { background: #FFFBEB; color: #F59E0B; }
.kpi-icon--blue   { background: #EFF6FF; color: #3B82F6; }
.kpi-icon--purple { background: #F5F3FF; color: #8B5CF6; }

.kpi-card__text { flex: 1; }
.kpi-label { font-size: 0.75rem; font-weight: 500; color: var(--text-muted); display: block; margin-bottom: 4px; }
.kpi-value { font-size: 1.6rem; font-weight: 700; color: var(--text-primary); display: block; line-height: 1; }
.kpi-sub   { font-size: 0.72rem; color: var(--text-muted); display: block; margin-top: 4px; }

/* ---- Card / Panel ---- */
.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    border-bottom: 1px solid var(--border);
    gap: 12px;
    flex-wrap: wrap;
}

.panel-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.panel-body { padding: 20px; }

/* ---- DataTable wrapper ---- */
.table-wrapper { overflow-x: auto; }
.dt-wrapper .dataTables_wrapper { padding: 0; }
.dt-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 0 0 16px; flex-wrap: wrap; }
.dt-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 0 0; flex-wrap: wrap; }

table.dataTable { border-collapse: collapse !important; width: 100% !important; }
table.dataTable thead th {
    background: var(--surface-2);
    color: var(--text-secondary);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border) !important;
    border-top: none !important;
    white-space: nowrap;
}
table.dataTable tbody td {
    padding: 11px 14px;
    font-size: 0.85rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
    white-space: nowrap;
}
table.dataTable tbody tr:hover td { background: var(--surface-2); }
table.dataTable thead .sorting::after,
table.dataTable thead .sorting_asc::after,
table.dataTable thead .sorting_desc::after { content: none !important; }

.dt-no-sort::after { content: none !important; }

/* ---- Forms ---- */
.form-group { margin-bottom: 18px; }
.form-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}
.form-label.required::after { content: ' *'; color: var(--danger); }

.form-control {
    display: block;
    width: 100%;
    padding: 9px 12px;
    font-size: 0.875rem;
    font-family: var(--font);
    color: var(--text-primary);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
    line-height: 1.5;
}
.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,0.12);
}
.form-control.is-invalid { border-color: var(--danger); }
.form-hint { font-size: 0.73rem; color: var(--text-muted); margin-top: 4px; display: block; }
.form-error { font-size: 0.73rem; color: var(--danger); margin-top: 4px; display: block; }

.form-section { margin-bottom: 24px; }
.form-section-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.form-row-3 { grid-template-columns: 1fr 1fr 1fr; }
.form-row-1 { grid-template-columns: 1fr; }

.form-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-top: 8px;
    border-top: 1px solid var(--border);
    margin-top: 24px;
}

.form-check { display: flex; align-items: center; gap: 8px; }
.form-check-input { width: 16px; height: 16px; accent-color: var(--primary); cursor: pointer; }
.form-check-label { font-size: 0.875rem; color: var(--text-primary); cursor: pointer; }

/* ---- Modal ---- */
.modal-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.45);
    z-index: 500;
    display: flex; align-items: center; justify-content: center;
    padding: 20px;
    opacity: 0; pointer-events: none;
    transition: opacity 0.2s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }

.modal {
    background: var(--surface);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
    transform: translateY(16px);
    transition: transform 0.2s;
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal.modal-sm  { max-width: 380px; }
.modal.modal-lg  { max-width: 720px; }
.modal.modal-xl  { max-width: 920px; }

.modal-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 20px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}
.modal-title { font-size: 1rem; font-weight: 600; color: var(--text-primary); }
.modal-close {
    display: flex; align-items: center; justify-content: center;
    width: 32px; height: 32px;
    border: none; background: none;
    border-radius: 8px;
    color: var(--text-muted);
    font-size: 1rem;
    transition: background 0.15s, color 0.15s;
}
.modal-close:hover { background: var(--surface-2); color: var(--text-primary); }

.modal-body { padding: 20px; overflow-y: auto; flex: 1; }
.modal-footer {
    display: flex; align-items: center; justify-content: flex-end;
    gap: 10px;
    padding: 14px 20px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}

/* ---- Toast ---- */
.toast-container {
    position: fixed;
    bottom: 24px; right: 24px;
    z-index: 600;
    display: flex; flex-direction: column; gap: 8px;
    align-items: flex-end;
}

.toast-item {
    display: flex; align-items: center; gap: 10px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 16px;
    font-size: 0.82rem;
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
    min-width: 240px; max-width: 340px;
    animation: toastIn 0.25s ease;
    border-left: 3px solid var(--border);
}
.toast-item.success { border-left-color: var(--success); }
.toast-item.error   { border-left-color: var(--danger); }
.toast-item.warning { border-left-color: var(--warning); }
.toast-item.info    { border-left-color: var(--info); }
.toast-icon { font-size: 1rem; }
.toast-item.success .toast-icon { color: var(--success); }
.toast-item.error   .toast-icon { color: var(--danger); }
.toast-item.warning .toast-icon { color: var(--warning); }
.toast-item.info    .toast-icon { color: var(--info); }

@keyframes toastIn {
    from { opacity: 0; transform: translateX(20px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* ---- Badges ---- */
.badge {
    display: inline-flex; align-items: center;
    padding: 2px 8px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    white-space: nowrap;
}
.badge-active  { background: #f0fdf4; color: #16a34a; }
.badge-pending { background: #fffbeb; color: #b45309; }
.badge-error   { background: #fef2f2; color: #dc2626; }
.badge-ready   { background: #eff6ff; color: #2563eb; }
.badge-master  { background: var(--primary-light); color: var(--primary); }
.badge-cliente { background: #f5f3ff; color: #7c3aed; }

/* ---- Loading overlay ---- */
.loading-overlay {
    position: fixed; inset: 0;
    background: rgba(255,255,255,0.7);
    z-index: 400; /* abaixo do modal (500) e do toast (600) */
    display: flex; align-items: center; justify-content: center;
    opacity: 0; pointer-events: none;
    transition: opacity 0.2s;
}
.loading-overlay.active { opacity: 1; pointer-events: all; }
.loading-spinner {
    width: 40px; height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- Alert placeholder ---- */
.alert-placeholder { margin-bottom: 16px; }
.alert-inline {
    display: flex; align-items: flex-start; gap: 10px;
    padding: 12px 14px;
    border-radius: var(--radius);
    font-size: 0.82rem;
    margin-bottom: 12px;
    border: 1px solid transparent;
}
.alert-inline.success { background: #f0fdf4; border-color: #bbf7d0; color: #166534; }
.alert-inline.danger  { background: #fef2f2; border-color: #fecaca; color: #991b1b; }
.alert-inline.warning { background: #fffbeb; border-color: #fde68a; color: #92400e; }
.alert-inline.info    { background: #eff6ff; border-color: #bfdbfe; color: #1e40af; }

/* ---- Tabs ---- */
.tabs-nav {
    display: flex; gap: 4px;
    border-bottom: 2px solid var(--border);
    margin-bottom: 20px;
}
.tab-btn {
    padding: 8px 16px;
    border: none; background: none;
    font-size: 0.85rem; font-weight: 500;
    color: var(--text-muted);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: color 0.15s, border-color 0.15s;
}
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.is-active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.tab-panel[hidden] { display: none; }

/* ---- Upload de arquivo / imagem ---- */
.upload-area {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 28px 20px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    position: relative;
}
.upload-area:hover, .upload-area.drag-over {
    border-color: var(--primary);
    background: var(--primary-light);
}
.upload-area input[type="file"] {
    position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; height: 100%;
}
.upload-area-icon { font-size: 1.8rem; color: var(--text-muted); margin-bottom: 8px; }
.upload-area-text { font-size: 0.82rem; color: var(--text-muted); }
.upload-area-text strong { color: var(--primary); }

.thumb-preview {
    width: 80px; height: 80px;
    object-fit: cover;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

/* ---- Color picker ---- */
.color-wrap { display: flex; align-items: center; gap: 10px; }
.color-wrap input[type="color"] { width: 40px; height: 36px; border: 1px solid var(--border); border-radius: 6px; padding: 2px; cursor: pointer; }
.color-wrap .form-control { flex: 1; }

/* ---- Responsividade ---- */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .btn-menu { display: flex !important; }
    .btn-sidebar-toggle { display: none; }
    .main-wrapper { margin-left: 0 !important; }
    body.sidebar-collapsed .main-wrapper { margin-left: 0; }
    .main-content { padding: 16px; }
    .topbar { padding: 0 16px; }
    .form-row, .form-row-3 { grid-template-columns: 1fr; }
    .kpi-grid { grid-template-columns: 1fr 1fr; }
    .page-header { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
    .kpi-grid { grid-template-columns: 1fr; }
}