/* ===================================================
   M boost — Clean SaaS Design System
   Inspired by Notion / Linear / Airtable
   =================================================== */

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; }

:root {
  --color-bg:        #F7F8FA;
  --color-surface:   #FFFFFF;
  --color-border:    #E5E7EB;
  --color-border-light: #F0F1F3;
  --color-text:      #111827;
  --color-text-sub:  #6B7280;
  --color-text-muted:#9CA3AF;
  --color-primary:   #4F46E5;
  --color-primary-light: #EEF2FF;
  --color-primary-hover: #4338CA;
  --color-success:   #10B981;
  --color-success-light: #ECFDF5;
  --color-warning:   #F59E0B;
  --color-warning-light: #FFFBEB;
  --color-danger:    #EF4444;
  --color-danger-light: #FEF2F2;
  --color-sidebar-bg:#FFFFFF;
  --color-sidebar-text: #374151;
  --color-sidebar-active-bg: #EEF2FF;
  --color-sidebar-active-text: #4F46E5;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --sidebar-width: 220px;
  --header-height: 56px;
  --font: 'Inter', 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 'Noto Sans JP', sans-serif;
}

body {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 14px;
  line-height: 1.6;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}

/* --- Layout --- */
.mb-layout {
  display: flex;
  min-height: 100vh;
}

/* --- Sidebar --- */
.mb-sidebar {
  width: var(--sidebar-width);
  background: var(--color-sidebar-bg);
  border-right: 1px solid var(--color-border);
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
  display: flex;
  flex-direction: column;
}

.mb-sidebar-logo {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--color-border-light);
}

.mb-sidebar-logo .logo-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.3px;
}

.mb-sidebar-logo .logo-sub {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.mb-sidebar-nav {
  padding: 12px 10px;
  flex: 1;
}

.mb-nav-section {
  margin-bottom: 20px;
}

.mb-nav-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 0 10px;
  margin-bottom: 4px;
}

.mb-nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  color: var(--color-sidebar-text);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
  margin-bottom: 1px;
}

.mb-nav-item:hover {
  background: var(--color-bg);
  color: var(--color-text);
  text-decoration: none;
}

.mb-nav-item.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.mb-nav-item svg {
  width: 16px;
  height: 16px;
  min-width: 16px;
  min-height: 16px;
  max-width: 16px;
  max-height: 16px;
  flex-shrink: 0;
  opacity: 0.7;
}

.mb-nav-item.active svg {
  opacity: 1;
}

/* --- Main Content --- */
.mb-main {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-width: 0;
}

/* --- Top Header --- */
.mb-header {
  height: var(--header-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.mb-header-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
}

.mb-header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mb-sync-info {
  font-size: 12px;
  color: var(--color-text-muted);
}

/* --- Buttons --- */
.mb-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: background 0.15s, box-shadow 0.15s;
  text-decoration: none;
}

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

.mb-btn-primary:hover {
  background: var(--color-primary-hover);
  color: #fff;
  text-decoration: none;
}

.mb-btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.mb-btn-secondary:hover {
  background: var(--color-bg);
  color: var(--color-text);
  text-decoration: none;
}

.mb-btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

/* --- Page Content --- */
.mb-content {
  padding: 28px;
  max-width: 1400px;
}

/* --- Stat Cards --- */
.mb-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}

.mb-stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  transition: box-shadow 0.15s;
}

.mb-stat-card:hover {
  box-shadow: var(--shadow-sm);
}

.mb-stat-label {
  font-size: 12px;
  color: var(--color-text-muted);
  font-weight: 500;
  margin-bottom: 6px;
}

.mb-stat-value {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.mb-stat-sub {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* --- Cards / Panels --- */
.mb-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.mb-card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mb-card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}

.mb-card-body {
  padding: 20px;
}

/* --- Tables --- */
.mb-table-wrap {
  overflow-x: auto;
}

.mb-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

.mb-table thead th {
  padding: 10px 14px;
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
  background: var(--color-bg);
}

.mb-table tbody tr {
  border-bottom: 1px solid var(--color-border-light);
  transition: background 0.1s;
}

.mb-table tbody tr:last-child {
  border-bottom: none;
}

.mb-table tbody tr:hover {
  background: #FAFAFA;
}

.mb-table tbody td {
  padding: 12px 14px;
  vertical-align: middle;
}

/* --- Rank Badge --- */
.mb-rank {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
  background: var(--color-bg);
  color: var(--color-text-sub);
  border: 1px solid var(--color-border);
}

.mb-rank.rank-1 { background: #FEF3C7; color: #92400E; border-color: #FDE68A; }
.mb-rank.rank-2 { background: #F3F4F6; color: #374151; border-color: #D1D5DB; }
.mb-rank.rank-3 { background: #FEE2E2; color: #7C2D12; border-color: #FECACA; }

/* --- Post Thumbnail --- */
.mb-thumb {
  width: 52px !important;
  height: 40px !important;
  min-width: 52px !important;
  max-width: 52px !important;
  min-height: 40px !important;
  max-height: 40px !important;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  flex-shrink: 0;
  display: block;
}

.mb-thumb-placeholder {
  width: 52px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* --- Creator Avatar --- */
.mb-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--color-bg);
  flex-shrink: 0;
}

/* --- Post Title --- */
.mb-post-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  max-width: 240px;
}

.mb-post-date {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* --- Creator Info --- */
.mb-creator-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
}

.mb-creator-username {
  font-size: 11px;
  color: var(--color-text-muted);
}

/* --- Badges --- */
.mb-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}

.mb-badge-success {
  background: var(--color-success-light);
  color: #065F46;
}

.mb-badge-muted {
  background: var(--color-bg);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

.mb-badge-warning {
  background: var(--color-warning-light);
  color: #92400E;
}

.mb-badge-primary {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

/* --- Type Badge --- */
.mb-type {
  font-size: 11px;
  color: var(--color-text-muted);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 2px 6px;
}

/* --- Number display --- */
.mb-num {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
}

.mb-num-sub {
  font-size: 12px;
  color: var(--color-text-sub);
}

/* --- Filter Bar --- */
.mb-filter-bar {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  margin-bottom: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.mb-filter-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.mb-filter-label {
  font-size: 12px;
  color: var(--color-text-muted);
  font-weight: 500;
  white-space: nowrap;
}

/* --- Tab Pills --- */
.mb-tabs {
  display: flex;
  gap: 4px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 3px;
}

.mb-tab {
  padding: 5px 12px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-sub);
  text-decoration: none;
  transition: background 0.1s, color 0.1s;
  white-space: nowrap;
}

.mb-tab:hover {
  color: var(--color-text);
  text-decoration: none;
}

.mb-tab.active {
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}

/* --- Form Controls --- */
.mb-select, .mb-input {
  height: 32px;
  padding: 0 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--color-text);
  background: var(--color-surface);
  outline: none;
  transition: border-color 0.15s;
}

.mb-select:focus, .mb-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,0.1);
}

.mb-input-search {
  padding-left: 30px;
  position: relative;
}

.mb-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.mb-input-wrap svg {
  position: absolute;
  left: 8px;
  width: 14px;
  height: 14px;
  color: var(--color-text-muted);
  pointer-events: none;
}

/* --- Genre Grid --- */
.mb-genre-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(88px, 1fr));
  gap: 8px;
  margin-bottom: 20px;
}

.mb-genre-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px 10px;
  text-align: center;
  text-decoration: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  display: block;
}

.mb-genre-card:hover {
  border-color: var(--color-primary);
  text-decoration: none;
}

.mb-genre-card.active {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.mb-genre-name {
  font-size: 11px;
  color: var(--color-text-sub);
  margin-bottom: 4px;
}

.mb-genre-count {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
}

.mb-genre-card.active .mb-genre-name { color: var(--color-primary); }
.mb-genre-card.active .mb-genre-count { color: var(--color-primary); }

/* --- Alert / Notice --- */
.mb-notice {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 13px;
  margin-bottom: 20px;
}

.mb-notice-warning {
  background: var(--color-warning-light);
  border: 1px solid #FDE68A;
  color: #78350F;
}

.mb-notice svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 1px;
}

/* --- Section Header --- */
.mb-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.mb-section-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}

.mb-section-count {
  font-size: 12px;
  color: var(--color-text-muted);
}

/* --- Status Badge --- */
.mb-status {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 500;
  padding: 3px 8px;
  border-radius: 20px;
}

.mb-status::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.mb-status-success { background: var(--color-success-light); color: #065F46; }
.mb-status-success::before { background: var(--color-success); }
.mb-status-running { background: #EFF6FF; color: #1D4ED8; }
.mb-status-running::before { background: #3B82F6; animation: pulse 1.5s infinite; }
.mb-status-error { background: var(--color-danger-light); color: #991B1B; }
.mb-status-error::before { background: var(--color-danger); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* --- Link --- */
.mb-link {
  font-size: 12px;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
}

.mb-link:hover {
  text-decoration: underline;
  color: var(--color-primary-hover);
}

/* --- Checkbox toggle --- */
.mb-toggle-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-size: 13px;
  color: var(--color-text-sub);
}

.mb-toggle-wrap input[type="checkbox"] {
  width: 14px;
  height: 14px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

/* --- Empty State --- */
.mb-empty {
  text-align: center;
  padding: 48px 20px;
  color: var(--color-text-muted);
}

.mb-empty-icon {
  font-size: 32px;
  margin-bottom: 12px;
  opacity: 0.4;
}

.mb-empty-text {
  font-size: 14px;
}

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #D1D5DB; }

/* --- Responsive --- */
@media (max-width: 768px) {
  .mb-sidebar { transform: translateX(-100%); }
  .mb-main { margin-left: 0; }
  .mb-content { padding: 16px; }
}