:root {
    /* LP「COSME CREATOR LEAGUE」準拠のライトテーマ（v2.48） */
    --tiktok-black: #11102d;
    --tiktok-red: #ff3f9d;   /* 主アクセント = LPピンク */
    --tiktok-cyan: #4a7cff;  /* 副アクセント = LPブルー */
    --tiktok-pink: #ff3f9d;
    --violet: #8b45ee;
    --bg-dark: #fffdfd;      /* 画面キャンバス（淡色） */
    --bg-card: #ffffff;
    --bg-card2: #faf8fd;
    --text-primary: #11102d; /* インク */
    --text-secondary: #5d5a70;
    --border: #ebe5f2;
    --gold: #e0a100;
    --silver: #8b93a1;
    --bronze: #c07b46;
    --green: #0ca678;
    --red: #e8467a;
    --grad: linear-gradient(105deg, #ff3f9d, #8b45ee 52%, #4a7cff);
    --shadow: 0 18px 50px rgba(145,73,206,.15);
    --shadow-sm: 0 8px 26px rgba(96,58,131,.07);
    color-scheme: light;
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }
  body { font-family: 'Hiragino Kaku Gothic ProN', 'Meiryo', sans-serif; color: var(--text-primary); min-height: 100vh;
    background:
      radial-gradient(circle at 88% 4%, rgba(255,168,226,.16), transparent 24%),
      radial-gradient(circle at 98% 22%, rgba(115,127,255,.09), transparent 20%),
      linear-gradient(#fff, #fffdfd);
    background-attachment: fixed; -webkit-font-smoothing: antialiased; }
  a { color: inherit; }
  button { font-family: inherit; }

  /* ===== LOGIN SCREEN ===== */
  #loginScreen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at 82% 8%, rgba(255,168,226,.22), transparent 26%), radial-gradient(circle at 96% 30%, rgba(115,127,255,.12), transparent 22%), linear-gradient(#fff, #fffdfd);
    padding: 24px;
  }
  .login-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 48px 40px;
    width: 400px;
    max-width: 100%;
    box-shadow: var(--shadow);
  }
  .login-logo { text-align: center; margin-bottom: 28px; }
  .login-logo .tiktok-icon { font-size: 44px; display: block; margin-bottom: 8px; }
  .login-logo-img { width: 190px; max-width: 72%; height: auto; display: block; margin: 0 auto 10px; }
  .login-logo h1 {
    font-size: 19px; font-weight: 700;
    background: linear-gradient(90deg, #f99ace, #8d60ea, #23aee7);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  }
  .login-logo p { font-size: 12px; color: var(--text-secondary); margin-top: 4px; }

  .role-selector { margin-bottom: 20px; }
  .role-selector label { display: block; font-size: 12px; color: var(--text-secondary); margin-bottom: 10px; text-transform: uppercase; letter-spacing: 1px; }
  .role-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
  .role-btn {
    padding: 14px; border-radius: 10px; border: 2px solid var(--border);
    background: var(--bg-card2); color: var(--text-secondary); cursor: pointer;
    text-align: center; transition: all 0.2s; font-size: 13px; font-family: inherit;
  }
  .role-btn:hover { border-color: var(--tiktok-red); color: var(--text-primary); }
  .role-btn.active { border-color: var(--tiktok-red); background: rgba(254,44,85,0.1); color: var(--text-primary); }
  .role-btn .role-icon { font-size: 22px; display: block; margin-bottom: 6px; }
  .role-btn .role-name { font-weight: 600; font-size: 13px; }

  .field-group { margin-bottom: 14px; }
  .field-group label { display: block; font-size: 11px; color: var(--text-secondary); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px; }
  .field-group input, .field-group select, .field-group textarea {
    width: 100%; padding: 11px 13px; border-radius: 10px;
    border: 1px solid var(--border); background: var(--bg-card2);
    color: var(--text-primary); font-size: 14px; font-family: inherit;
  }
  .field-group textarea { resize: vertical; min-height: 70px; }
  .field-group .pw-wrap { position: relative; }
  .field-group .pw-wrap button {
    position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
    background: none; border: none; color: var(--text-secondary); cursor: pointer; font-size: 15px;
    display: flex; align-items: center; justify-content: center; padding: 4px;
  }
  .field-group .pw-wrap button svg { width: 18px; height: 18px; display: block; }
  .field-hint { font-size: 11px; color: var(--text-secondary); margin-top: 4px; }
  .field-error { font-size: 12px; color: var(--red); margin-top: 5px; display: none; }
  .field-error.show { display: block; }
  .remember-row { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; font-size: 12px; color: var(--text-secondary); }
  .remember-row input { width: auto; }
  .login-links { display: flex; justify-content: space-between; margin-bottom: 18px; font-size: 12px; }
  .login-links a { color: var(--tiktok-cyan); cursor: pointer; text-decoration: none; }
  .login-links a:hover { text-decoration: underline; }

  .login-btn {
    width: 100%; padding: 14px; border-radius: 10px;
    background: var(--grad);
    border: none; color: white; font-size: 15px; font-weight: 700;
    cursor: pointer; transition: opacity 0.2s; letter-spacing: 0.5px;
  }
  .login-btn:hover { opacity: 0.9; }
  .login-btn.secondary { background: var(--bg-card2); border: 1px solid var(--border); color: var(--text-primary); }
  .login-signup-link { text-align: center; margin-top: 16px; font-size: 12px; color: var(--text-secondary); }
  .login-signup-link a { color: var(--tiktok-cyan); cursor: pointer; }

  /* ===== MODAL ===== */
  .modal-overlay {
    display: none; position: fixed; inset: 0; background: rgba(40,20,60,0.45);
    z-index: 1000; align-items: center; justify-content: center; padding: 20px;
  }
  .modal-overlay.show { display: flex; }
  .modal-box {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px;
    padding: 28px; width: 480px; max-width: 100%; max-height: 88vh; overflow-y: auto;
  }
  .modal-box.wide { width: 720px; }
  .modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
  .modal-title { font-size: 17px; font-weight: 700; }
  .modal-close { background: none; border: none; color: var(--text-secondary); font-size: 20px; cursor: pointer; }
  .modal-close:hover { color: var(--text-primary); }
  .modal-success {
    display: none; background: rgba(0,230,118,0.1); border: 1px solid rgba(0,230,118,0.3);
    color: var(--green); border-radius: 10px; padding: 12px 16px; font-size: 13px; margin-bottom: 14px;
  }
  .modal-success.show { display: block; }
  .modal-actions { display: flex; gap: 10px; margin-top: 20px; }
  .btn {
    padding: 10px 18px; border-radius: 9px; border: 1px solid var(--border);
    background: var(--bg-card2); color: var(--text-primary); font-size: 13px; font-weight: 600;
    cursor: pointer; transition: all 0.15s;
  }
  .btn:hover { border-color: var(--text-secondary); }
  .btn.primary { background: var(--grad); border: none; color: #fff; }
  .btn.primary:hover { opacity: 0.9; }
  .btn.danger { background: rgba(255,82,82,0.12); border-color: rgba(255,82,82,0.4); color: var(--red); }
  .btn.danger:hover { background: rgba(255,82,82,0.2); }
  .btn.ghost { background: transparent; }
  .btn.sm { padding: 6px 12px; font-size: 11px; }
  .btn:disabled { opacity: 0.4; cursor: not-allowed; }
  .radio-card-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 6px; }
  .radio-card {
    border: 2px solid var(--border); border-radius: 10px; padding: 12px; cursor: pointer;
    display: flex; align-items: center; gap: 10px; transition: all 0.15s; font-size: 13px;
  }
  .radio-card:hover { border-color: var(--text-secondary); }
  .radio-card.selected { border-color: var(--tiktok-red); background: rgba(254,44,85,0.08); }

  /* ===== MAIN APP ===== */
  #app { display: none; }
  #participationPage { display: none; }
  #passwordResetPage { display: none; }

  .header {
    background: var(--bg-card); border-bottom: 1px solid var(--border);
    padding: 0 24px; height: 60px; display: flex; align-items: center;
    justify-content: space-between; position: sticky; top: 0; z-index: 100;
  }
  .header-left { display: flex; align-items: center; gap: 16px; }
  .hamburger-btn {
    display: none; background: none; border: 1px solid var(--border); border-radius: 8px;
    color: var(--text-primary); font-size: 18px; width: 34px; height: 34px; cursor: pointer; flex-shrink: 0;
  }
  .header-logo {
    font-size: 15px; font-weight: 700;
    background: linear-gradient(90deg, #f99ace, #8d60ea, #23aee7);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    display: flex; align-items: center; gap: 8px;
  }
  .header-logo-img { height: 30px; width: auto; display: block; flex-shrink: 0; }
  .header-badge {
    background: rgba(254,44,85,0.15); border: 1px solid var(--tiktok-red); color: var(--tiktok-red);
    padding: 3px 10px; border-radius: 20px; font-size: 11px; font-weight: 600;
  }
  .header-right { display: flex; align-items: center; gap: 16px; }
  .header-bell { position: relative; font-size: 18px; cursor: pointer; color: var(--text-secondary); }
  .header-bell .dot { position: absolute; top: -3px; right: -3px; width: 8px; height: 8px; border-radius: 50%; background: var(--tiktok-red); }
  .header-user { font-size: 13px; color: var(--text-secondary); }
  .header-user span { color: var(--text-primary); font-weight: 600; }
  .logout-btn {
    padding: 6px 14px; border-radius: 8px; border: 1px solid var(--border);
    background: transparent; color: var(--text-secondary); font-size: 12px;
    cursor: pointer; transition: all 0.2s;
  }
  .logout-btn:hover { border-color: var(--tiktok-red); color: var(--tiktok-red); }

  .layout { display: flex; min-height: calc(100vh - 60px); }
  .sidebar {
    width: 226px; background: var(--bg-card); border-right: 1px solid var(--border);
    padding: 16px 0; flex-shrink: 0; overflow-y: auto;
  }
  .mobile-sidebar-scrim { display: none; }
  .nav-item {
    display: flex; align-items: center; gap: 12px; padding: 11px 20px; cursor: pointer;
    color: var(--text-secondary); font-size: 13.5px; transition: all 0.2s; border-left: 3px solid transparent;
    position: relative;
  }
  .nav-item:hover { color: var(--text-primary); background: rgba(17,16,45,0.045); }
  .nav-item.active { color: var(--text-primary); background: rgba(254,44,85,0.08); border-left-color: var(--tiktok-red); }
  .nav-icon { font-size: 17px; width: 20px; text-align: center; }
  .nav-section { font-size: 10px; color: var(--text-secondary); padding: 14px 20px 6px; text-transform: uppercase; letter-spacing: 1.5px; opacity: 0.6; }
  .nav-badge {
    margin-left: auto; background: var(--tiktok-red); color: #fff; font-size: 10px; font-weight: 700;
    border-radius: 10px; padding: 1px 7px; min-width: 18px; text-align: center;
  }

  .content { flex: 1; padding: 26px; overflow-y: auto; max-width: 100%; }

  .page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; flex-wrap: wrap; gap: 12px; }
  .page-title { font-size: 21px; font-weight: 700; }

  /* Event navigator */
  .event-nav { display: flex; align-items: center; gap: 10px; position: relative; }
  .event-nav button.nav-arrow {
    background: var(--bg-card); border: 1px solid var(--border); color: var(--text-secondary);
    padding: 6px 12px; border-radius: 8px; cursor: pointer; font-size: 16px; transition: all 0.2s;
  }
  .event-nav button.nav-arrow:hover:not(:disabled) { border-color: var(--tiktok-red); color: var(--tiktok-red); }
  .event-nav button.nav-arrow:disabled { opacity: 0.3; cursor: not-allowed; }
  .event-display {
    font-size: 14px; font-weight: 600; color: var(--text-primary);
    background: var(--bg-card); border: 1px solid var(--border); padding: 7px 16px;
    border-radius: 8px; min-width: 220px; text-align: center; cursor: pointer;
    display: flex; align-items: center; justify-content: center; gap: 8px;
  }
  .event-display:hover { border-color: var(--tiktok-cyan); }
  .event-status-badge { font-size: 10px; padding: 2px 8px; border-radius: 20px; font-weight: 700; }
  .es-active { background: rgba(255,82,82,0.15); color: var(--red); }
  .es-upcoming { background: rgba(37,244,238,0.12); color: var(--tiktok-cyan); }
  .es-ended { background: rgba(17,16,45,0.06); color: var(--text-secondary); }
  .es-draft { background: rgba(255,215,0,0.12); color: var(--gold); }
  .event-dropdown {
    display: none; position: absolute; top: 44px; left: 50%; transform: translateX(-50%);
    background: var(--bg-card2); border: 1px solid var(--border); border-radius: 10px;
    width: 260px; max-height: 260px; overflow-y: auto; z-index: 50; box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  }
  .event-dropdown.show { display: block; }
  .event-dropdown-item { padding: 10px 14px; font-size: 13px; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 8px; }
  .event-dropdown-item:hover { background: rgba(17,16,45,0.05); }
  .event-dropdown-item.current { color: var(--tiktok-cyan); font-weight: 700; }

  /* KPI Cards */
  .kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 26px; }
  .kpi-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
  .kpi-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px; padding: 20px; position: relative; overflow: hidden; }
  .kpi-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--tiktok-red), var(--tiktok-cyan)); }
  .kpi-label { font-size: 12px; color: var(--text-secondary); margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.5px; }
  .kpi-value { font-size: 26px; font-weight: 700; margin-bottom: 6px; }
  .kpi-change { font-size: 12px; display: flex; align-items: center; gap: 4px; }
  .kpi-change.up { color: var(--green); }
  .kpi-change.down { color: var(--red); }
  .kpi-change.flat { color: var(--text-secondary); }
  .kpi-icon { position: absolute; right: 16px; top: 16px; font-size: 26px; opacity: 0.2; }

  .charts-row { display: grid; grid-template-columns: 2fr 1fr; gap: 16px; margin-bottom: 26px; }
  .charts-row.single { grid-template-columns: 1fr; }
  .chart-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px; padding: 20px; }
  .chart-title { font-size: 13px; font-weight: 600; margin-bottom: 16px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.5px; }

  .table-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px; padding: 20px; margin-bottom: 26px; }
  .table-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; flex-wrap: wrap; gap: 10px; }
  .table-title { font-size: 15px; font-weight: 700; }
  .table-actions { display: flex; gap: 8px; flex-wrap: wrap; }
  .filter-btn {
    padding: 6px 13px; border-radius: 8px; border: 1px solid var(--border);
    background: var(--bg-card2); color: var(--text-secondary); font-size: 12px;
    cursor: pointer; transition: all 0.2s; white-space: nowrap;
  }
  .filter-btn.active { border-color: var(--tiktok-cyan); color: var(--tiktok-cyan); background: rgba(37,244,238,0.08); }
  .filter-btn:hover { border-color: var(--text-secondary); color: var(--text-primary); }

  table { width: 100%; border-collapse: collapse; }
  thead th { padding: 10px 12px; text-align: left; font-size: 10.5px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 1px solid var(--border); font-weight: 500; white-space: nowrap; }
  thead th.right { text-align: right; }
  tbody tr { border-bottom: 1px solid rgba(17,16,45,0.045); transition: background 0.15s; }
  tbody tr:hover { background: rgba(17,16,45,0.035); }
  tbody tr.highlight { background: rgba(254,44,85,0.06); }
  tbody td { padding: 11px 12px; font-size: 13.5px; }
  tbody td.right { text-align: right; }
  .scrollable-table { overflow-x: auto; }

  .rank-badge { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; border-radius: 50%; font-weight: 700; font-size: 12px; flex-shrink:0; }
  .rank-1 { background: linear-gradient(135deg, #FFD700, #FFA500); color: #000; }
  .rank-2 { background: linear-gradient(135deg, #C0C0C0, #909090); color: #000; }
  .rank-3 { background: linear-gradient(135deg, #CD7F32, #9B5E28); color: #fff; }
  .rank-other { background: var(--bg-card2); color: var(--text-secondary); border: 1px solid var(--border); }

  .creator-info { display: flex; align-items: center; gap: 11px; }
  .creator-avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--bg-card2); display: flex; align-items: center; justify-content: center; font-size: 15px; flex-shrink: 0; object-fit: cover; }
  .creator-name { font-weight: 600; font-size: 13.5px; }
  .creator-handle { font-size: 11px; color: var(--text-secondary); }

  .trend { display: flex; align-items: center; gap: 4px; font-size: 12px; white-space:nowrap; }
  .trend.up { color: var(--green); }
  .trend.down { color: var(--red); }
  .trend.flat { color: var(--text-secondary); }

  .progress-bar-wrap { display: flex; align-items: center; gap: 8px; }
  .progress-bar { flex: 1; height: 6px; background: var(--border); border-radius: 3px; overflow: hidden; min-width: 60px; }
  .progress-fill { height: 100%; border-radius: 3px; background: linear-gradient(90deg, var(--tiktok-red), var(--tiktok-cyan)); }

  .badge-tier { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; white-space: nowrap; }
  .tier-diamond { background: rgba(37,244,238,0.15); color: var(--tiktok-cyan); border: 1px solid rgba(37,244,238,0.3); }
  .tier-gold { background: rgba(255,215,0,0.15); color: #FFD700; border: 1px solid rgba(255,215,0,0.3); }
  .tier-silver { background: rgba(192,192,192,0.15); color: #C0C0C0; border: 1px solid rgba(192,192,192,0.3); }
  .tier-bronze { background: rgba(205,127,50,0.15); color: #CD7F32; border: 1px solid rgba(205,127,50,0.3); }

  .status-tag { padding: 3px 8px; border-radius: 4px; font-size: 10.5px; font-weight: 600; white-space:nowrap; }
  .status-active { background: rgba(0,230,118,0.15); color: var(--green); }
  .status-inactive { background: rgba(17,16,45,0.06); color: var(--text-secondary); }
  .status-block { background: rgba(255,82,82,0.15); color: var(--red); cursor: pointer; }
  .status-pending { background: rgba(255,215,0,0.13); color: var(--gold); }
  .status-approved { background: rgba(0,230,118,0.15); color: var(--green); }
  .status-rejected { background: rgba(255,82,82,0.15); color: var(--red); }
  .status-withdrawn { background: rgba(17,16,45,0.06); color: var(--text-secondary); }
  .status-joined { background: rgba(0,230,118,0.15); color: var(--green); }
  .status-declined { background: rgba(17,16,45,0.06); color: var(--text-secondary); }
  .status-blocked { background: rgba(255,82,82,0.15); color: var(--red); }

  .toggle-switch { position: relative; width: 42px; height: 22px; display: inline-block; cursor: pointer; }
  .toggle-switch input { display:none; }
  .toggle-track { position: absolute; inset: 0; background: var(--border); border-radius: 20px; transition: all 0.2s; }
  .toggle-switch input:checked + .toggle-track { background: var(--green); }
  .toggle-knob { position: absolute; top: 2px; left: 2px; width: 18px; height: 18px; border-radius: 50%; background: #fff; transition: all 0.2s; }
  .toggle-switch input:checked ~ .toggle-knob { left: 22px; }

  .personal-hero { background: linear-gradient(135deg, rgba(254,44,85,0.15), rgba(37,244,238,0.08)); border: 1px solid rgba(254,44,85,0.3); border-radius: 16px; padding: 26px; margin-bottom: 22px; display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
  .personal-avatar {
    width: 72px; height: 72px; border-radius: 50%; background: var(--bg-card2);
    border: 1px solid var(--border); display: flex; align-items: center; justify-content: center;
    font-size: 30px; font-weight: 700; flex-shrink: 0; object-fit: cover;
  }
  .personal-name { font-size: 22px; font-weight: 700; margin-bottom: 4px; }
  .personal-handle { font-size: 13px; color: var(--text-secondary); margin-bottom: 10px; }
  .personal-stats { display: flex; gap: 22px; flex-wrap: wrap; }
  .personal-stat .label { font-size: 11px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.5px; }
  .personal-stat .val { font-size: 19px; font-weight: 700; }
  .personal-rank-display { margin-left: auto; text-align: center; background: rgba(255,255,255,0.55); border-radius: 12px; padding: 14px 22px; }
  .personal-rank-display .rank-num { font-size: 46px; font-weight: 900; background: linear-gradient(90deg, var(--tiktok-red), var(--tiktok-cyan)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
  .personal-rank-display .rank-label { font-size: 11px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 1px; }

  .section-label { font-size: 17px; font-weight: 700; margin-bottom: 14px; }
  .table-footer { display: flex; align-items: center; justify-content: space-between; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border); flex-wrap: wrap; gap: 10px; }
  .table-count { font-size: 12px; color: var(--text-secondary); }
  .pagination { display: flex; gap: 6px; }
  .page-num { width: 28px; height: 28px; border-radius: 6px; border: 1px solid var(--border); background: var(--bg-card2); color: var(--text-secondary); cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 12px; transition: all 0.2s; }
  .page-num.active { background: var(--tiktok-red); border-color: var(--tiktok-red); color: #fff; }
  .page-num:hover:not(.active) { border-color: var(--text-secondary); color: var(--text-primary); }

  .tabs { display: flex; gap: 4px; margin-bottom: 22px; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
  .tab { padding: 10px 16px; cursor: pointer; font-size: 13.5px; color: var(--text-secondary); border-bottom: 2px solid transparent; margin-bottom: -1px; transition: all 0.2s; white-space:nowrap; }
  .tab:hover { color: var(--text-primary); }
  .tab.active { color: var(--tiktok-red); border-bottom-color: var(--tiktok-red); font-weight: 600; }
  .tab .cnt-badge { background: var(--tiktok-red); color: #fff; font-size: 10px; border-radius: 8px; padding: 1px 6px; margin-left: 5px; }

  .notif-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--tiktok-red); display: inline-block; margin-left: 4px; }

  .page { display: none; }
  .page.active { display: block; }

  .announce-card { background: linear-gradient(135deg, rgba(254,44,85,0.1), rgba(37,244,238,0.05)); border: 1px solid rgba(254,44,85,0.25); border-radius: 12px; padding: 15px 20px; display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
  .announce-icon { font-size: 22px; }
  .announce-text { font-size: 13px; color: var(--text-secondary); }
  .announce-text strong { color: var(--text-primary); }

  .banner-error, .banner-warning, .banner-info {
    border-radius: 12px; padding: 12px 18px; margin-bottom: 18px; font-size: 13px;
    display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  }
  .banner-error { background: rgba(255,82,82,0.1); border: 1px solid rgba(255,82,82,0.35); color: var(--red); }
  .banner-warning { background: rgba(255,215,0,0.08); border: 1px solid rgba(255,215,0,0.3); color: #b47e00; }
  .banner-info { background: rgba(37,244,238,0.08); border: 1px solid rgba(37,244,238,0.3); color: var(--tiktok-cyan); }

  .toast { position: fixed; bottom: 24px; right: 24px; background: var(--bg-card2); border: 1px solid var(--green); color: var(--green); padding: 12px 20px; border-radius: 10px; font-size: 13px; z-index: 2000; box-shadow: 0 10px 30px rgba(0,0,0,0.5); display: none; }
  .toast.show { display: block; animation: fadein 0.2s; }
  @keyframes fadein { from { opacity:0; transform: translateY(10px);} to {opacity:1; transform:translateY(0);} }

  /* two pane message layout */
  .two-pane { display: grid; grid-template-columns: 340px 1fr; gap: 16px; height: calc(100vh - 220px); min-height: 480px; }
  .pane-list { background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px; overflow-y: auto; }
  .pane-detail { background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px; padding: 22px; overflow-y: auto; }
  .msg-row { padding: 14px 16px; border-bottom: 1px solid rgba(17,16,45,0.05); cursor: pointer; transition: background 0.15s; }
  .msg-row:hover { background: rgba(17,16,45,0.045); }
  .msg-row.selected { background: rgba(254,44,85,0.08); border-left: 3px solid var(--tiktok-red); }
  .msg-row.unread .msg-row-subject { font-weight: 700; }
  .msg-row-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 4px; }
  .msg-row-name { font-size: 12.5px; font-weight: 600; }
  .msg-row-date { font-size: 10.5px; color: var(--text-secondary); }
  .msg-row-subject { font-size: 13px; margin-bottom: 3px; }
  .msg-row-preview { font-size: 11.5px; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .msg-type-badge { font-size: 9.5px; padding: 1px 6px; border-radius: 4px; font-weight: 700; margin-right: 5px; }
  .type-announce { background: rgba(37,244,238,0.15); color: var(--tiktok-cyan); }
  .type-personal { background: rgba(17,16,45,0.07); color: var(--text-primary); }
  .type-reward { background: rgba(255,215,0,0.15); color: var(--gold); }
  .type-warning { background: rgba(255,82,82,0.15); color: var(--red); }

  .thread-bubble { border-radius: 12px; padding: 14px 16px; margin-bottom: 12px; max-width: 82%; font-size: 13.5px; line-height: 1.6; white-space: pre-wrap; }
  .thread-bubble.from-admin { background: rgba(254,44,85,0.1); border: 1px solid rgba(254,44,85,0.25); margin-right:auto; }
  .thread-bubble.from-creator { background: var(--bg-card2); border: 1px solid var(--border); margin-left: auto; }
  .thread-meta { font-size: 11px; color: var(--text-secondary); margin-bottom: 4px; }

  .app-card, .event-card, .video-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px; padding: 20px; margin-bottom: 14px; }
  .app-card-top, .video-card-top { display: flex; align-items: center; gap: 14px; margin-bottom: 12px; flex-wrap: wrap; }
  .app-card-name { font-weight: 700; font-size: 15px; }
  .app-meta-row { display: flex; gap: 16px; font-size: 12.5px; color: var(--text-secondary); margin-bottom: 10px; flex-wrap: wrap; }
  .app-meta-row b { color: var(--text-primary); }

  .brand-badge { display: inline-flex; align-items: center; gap: 5px; padding: 3px 10px; border-radius: 8px; font-size: 11.5px; font-weight: 600; }

  .event-card-header { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; flex-wrap: wrap; }
  .event-card-name { font-size: 16px; font-weight: 700; }
  .event-meta { font-size: 12.5px; color: var(--text-secondary); margin-bottom: 10px; }
  .event-card-section { margin-top: 10px; font-size: 12.5px; }
  .event-card-section b { color: var(--text-secondary); font-weight: 600; }
  .prize-list { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 6px; }
  .prize-chip { background: var(--bg-card2); border: 1px solid var(--border); border-radius: 8px; padding: 6px 12px; font-size: 12px; }

  .brand-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px; padding: 18px 20px; margin-bottom: 14px; }
  .brand-card.archived { opacity: 0.55; }
  .brand-card-top { display: flex; align-items: center; gap: 12px; }
  .brand-card-name { font-weight: 700; font-size: 15px; }
  .product-table-wrap { margin-top: 14px; display: none; border-top: 1px solid var(--border); padding-top: 14px; }
  .product-table-wrap.show { display: block; }
  .product-add-form { display: grid; grid-template-columns: 2fr 1fr 1fr auto; gap: 8px; margin-top: 10px; align-items: end; }
  .product-add-form label { display: block; font-size: 11px; color: var(--text-secondary); margin-bottom: 4px; }
  .product-add-form input { width: 100%; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--border); background: var(--bg-card2); color: var(--text-primary); font-size: 12.5px; }
  .product-add-form button { height: 36px; }

  .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
  .form-grid .full { grid-column: 1 / -1; }
  @media (max-width: 700px) { .form-grid { grid-template-columns: 1fr; } }

  .checkbox-chip-grid { display: flex; flex-wrap: wrap; gap: 8px; }
  .checkbox-chip { display: flex; align-items: center; gap: 6px; padding: 7px 12px; border: 1px solid var(--border); border-radius: 20px; font-size: 12px; cursor: pointer; background: var(--bg-card2); }
  .checkbox-chip.checked { border-color: var(--tiktok-cyan); background: rgba(37,244,238,0.08); color: var(--tiktok-cyan); }

  /* participation confirm standalone page */
  .participation-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: radial-gradient(circle at 82% 8%, rgba(255,168,226,.22), transparent 26%), radial-gradient(circle at 96% 30%, rgba(115,127,255,.12), transparent 22%), linear-gradient(#fff, #fffdfd); padding: 24px; }
  .participation-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 20px; padding: 40px; width: 480px; max-width: 100%; text-align: center; }
  .participation-card h2 { font-size: 20px; margin-bottom: 6px; }
  .participation-card .ev-period { color: var(--text-secondary); font-size: 13px; margin-bottom: 20px; }

  .scope-note { font-size: 11.5px; color: var(--text-secondary); background: var(--bg-card2); border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px; margin-bottom: 18px; }
  .scope-note a { color: var(--tiktok-cyan); text-decoration: underline; }

  @media (max-width: 1200px) {
    .kpi-grid, .kpi-grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
    .charts-row { grid-template-columns: 1fr; }
    .two-pane { grid-template-columns: 1fr; height: auto; }
  }
  /* §7.5 タブレット（768px以下）：サイドバーをハンバーガーメニューに収納 */
  @media (max-width: 768px) {
    .hamburger-btn { display: flex; align-items: center; justify-content: center; }
    .sidebar {
      position: fixed; top: 60px; left: 0; bottom: 0; z-index: 150;
      transform: translateX(-100%); transition: transform 0.25s ease; box-shadow: 4px 0 24px rgba(0,0,0,0.4);
    }
    .sidebar.mobile-open { transform: translateX(0); }
    .mobile-sidebar-scrim.show {
      display: block; position: fixed; inset: 60px 0 0 0; background: rgba(40,20,60,0.4); z-index: 140;
    }
    .header-user { display: none; }
  }
  /* §7.5 モバイル（480px以下）：カードグリッドは1列表示（テーブルは既存の.scrollable-tableで横スクロール対応済み） */
  @media (max-width: 480px) {
    .kpi-grid, .kpi-grid.cols-3 { grid-template-columns: 1fr; }
    .content { padding: 16px; }
    .header { padding: 0 14px; }
    .header-logo-text { display: none; }
    .modal-box { padding: 20px; }
  }
  /* ===== LP tier badges (背抜き済みPNG) ===== */
  .tb{width:20px;height:20px;background-size:contain;background-repeat:no-repeat;background-position:center;display:inline-block;vertical-align:-5px;filter:drop-shadow(0 2px 4px rgba(91,45,143,.16))}
  .tb-diamond{background-image:url(tier-diamond.png)}
  .tb-gold{background-image:url(tier-gold.png)}
  .tb-silver{background-image:url(tier-silver.png)}
  .tb-bronze{background-image:url(tier-bronze.png)}
  .tiercell{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:800;white-space:nowrap}