:root {
      --bg: #f4f5f7;
      --surface: #ffffff;
      --surface-border: #e8eaed;
      --surface-hover: #f9fafb;
      --text: #1f2937;
      --text-muted: #6b7280;
      --accent: #6366f1;
      --success: #059669;
      --success-bg: #ecfdf5;
      --error: #dc2626;
      --error-bg: #fef2f2;
      --input-bg: #ffffff;
      --radius: 12px;
      --radius-sm: 8px;
      --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 8px 24px rgba(0,0,0,0.04);
      --rainbow: linear-gradient(90deg, #e879f9, #818cf8, #38bdf8, #34d399, #fbbf24, #f472b6);
      --font: 'Inter', system-ui, -apple-system, sans-serif;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }

    body {
      font-family: var(--font);
      font-size: 15px;
      color: var(--text);
      background: var(--bg);
      min-height: 100vh;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    .page {
      min-height: 100vh;
      background:
        radial-gradient(ellipse at 0% 0%, rgba(129,140,248,0.07) 0%, transparent 50%),
        radial-gradient(ellipse at 100% 100%, rgba(52,211,153,0.06) 0%, transparent 50%),
        var(--bg);
    }

    .wrap {
      width: 100%;
      max-width: 26rem;
      margin: 0 auto;
      padding: 3.5rem 1.25rem 4rem;
    }

    .wrap-wide {
      max-width: 52rem;
      padding-top: 2rem;
      padding-bottom: 3rem;
    }

    .brand {
      font-size: 0.75rem;
      font-weight: 600;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      text-align: center;
      margin-bottom: 1.5rem;
      background: var(--rainbow);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .card, .panel {
      position: relative;
      background: var(--surface);
      border: 1px solid var(--surface-border);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .card { padding: 2rem 1.75rem; }
    .panel { padding: 1.75rem; }

    .card::before, .panel::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 3px;
      background: var(--rainbow);
    }

    .card h1, .panel h1 {
      font-size: 1.35rem;
      font-weight: 600;
      line-height: 1.35;
      margin-bottom: 1.25rem;
      color: var(--text);
      letter-spacing: -0.02em;
    }

    .card p { color: var(--text-muted); margin-bottom: 0.75rem; }

    label {
      display: block;
      font-size: 0.8rem;
      font-weight: 500;
      color: var(--text-muted);
      margin-bottom: 0.4rem;
    }

    input, select, textarea {
      width: 100%;
      font-family: var(--font);
      font-size: 0.9rem;
      color: var(--text);
      background: var(--input-bg);
      border: 1px solid var(--surface-border);
      border-radius: var(--radius-sm);
      padding: 0.65rem 0.8rem;
      outline: none;
      transition: border-color 0.15s, box-shadow 0.15s;
    }

    input:focus, select:focus, textarea:focus {
      border-color: #a5b4fc;
      box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.15);
    }

    input[type="date"] { color-scheme: light; }

    select {
      cursor: pointer;
      appearance: none;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236b7280' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
      background-repeat: no-repeat;
      background-position: right 0.8rem center;
      padding-right: 2rem;
    }

    .field { margin-bottom: 1rem; }

    button, .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-family: var(--font);
      font-size: 0.85rem;
      font-weight: 500;
      text-decoration: none;
      color: #fff;
      background: var(--text);
      border: none;
      border-radius: var(--radius-sm);
      padding: 0.65rem 1.25rem;
      cursor: pointer;
      transition: opacity 0.15s, transform 0.1s;
    }

    button:hover, .btn:hover {
      opacity: 0.88;
      transform: translateY(-1px);
    }

    button:active { transform: translateY(0); }

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

    .btn-ghost:hover {
      color: var(--text);
      background: var(--surface-hover);
      opacity: 1;
      transform: none;
    }

    .btn-danger {
      color: var(--error);
      background: var(--error-bg);
      border: 1px solid #fecaca;
    }

    .btn-danger:hover {
      background: #fee2e2;
      opacity: 1;
      transform: none;
    }

    .msg {
      font-size: 0.875rem;
      padding: 0.6rem 0.8rem;
      border-radius: var(--radius-sm);
      margin-bottom: 1rem;
      background: var(--error-bg);
      border: 1px solid #fecaca;
      color: var(--error);
    }

    .ok {
      font-size: 0.875rem;
      padding: 0.6rem 0.8rem;
      border-radius: var(--radius-sm);
      margin-bottom: 1rem;
      background: var(--success-bg);
      border: 1px solid #a7f3d0;
      color: var(--success);
    }

    .link-box {
      display: block;
      font-family: ui-monospace, 'SF Mono', monospace;
      font-size: 0.8rem;
      word-break: break-all;
      padding: 0.75rem 0.9rem;
      background: var(--surface-hover);
      border: 1px solid var(--surface-border);
      border-radius: var(--radius-sm);
      color: var(--accent);
      text-decoration: none;
      margin: 1rem 0;
      transition: border-color 0.15s;
    }

    .link-box:hover { border-color: #a5b4fc; }

    a { color: var(--accent); text-decoration: none; }
    a:hover { text-decoration: underline; }

    .back {
      display: inline-block;
      margin-top: 1rem;
      font-size: 0.85rem;
      color: var(--text-muted);
    }

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

    .success-icon {
      width: 2.75rem;
      height: 2.75rem;
      margin: 0 auto 1rem;
      border-radius: 50%;
      background: var(--success-bg);
      border: 2px solid transparent;
      background-clip: padding-box;
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      color: var(--success);
    }

    .success-icon::before {
      content: '';
      position: absolute;
      inset: -2px;
      border-radius: 50%;
      background: var(--rainbow);
      z-index: -1;
    }

    .text-center { text-align: center; }

    .topbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 1rem;
      margin-bottom: 1.75rem;
      padding-bottom: 1.25rem;
      border-bottom: 1px solid var(--surface-border);
    }

    .topbar .brand { margin: 0; text-align: left; }

    .topbar nav {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      flex-wrap: wrap;
    }

    .topbar nav form { display: inline; }
    .topbar button, .topbar .btn { margin-top: 0; padding: 0.45rem 0.9rem; font-size: 0.8rem; }

    .table-wrap { overflow-x: auto; }

    table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }

    th {
      font-size: 0.7rem;
      font-weight: 600;
      letter-spacing: 0.05em;
      text-transform: uppercase;
      color: var(--text-muted);
      text-align: left;
      padding: 0.55rem 0.75rem;
      border-bottom: 1px solid var(--surface-border);
      background: var(--surface-hover);
    }

    td {
      padding: 0.9rem 0.75rem;
      border-bottom: 1px solid var(--surface-border);
      vertical-align: top;
      color: var(--text-muted);
    }

    td strong { color: var(--text); font-weight: 500; }
    tr:last-child td { border-bottom: none; }
    tr:hover td { background: var(--surface-hover); }

    .url {
      font-family: ui-monospace, 'SF Mono', monospace;
      font-size: 0.78rem;
      color: var(--accent);
      word-break: break-all;
    }

    .meta { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.3rem; }

    .badge {
      display: inline-block;
      font-size: 0.7rem;
      font-weight: 500;
      padding: 0.15rem 0.5rem;
      border-radius: 999px;
      background: var(--surface-hover);
      color: var(--text-muted);
      border: 1px solid var(--surface-border);
    }

    .actions { display: flex; gap: 0.4rem; flex-wrap: wrap; align-items: center; }
    .actions button, .actions .btn { margin-top: 0; padding: 0.35rem 0.7rem; font-size: 0.78rem; }

    .empty { text-align: center; padding: 2rem 1rem; color: var(--text-muted); }
    .form-actions { margin-top: 1.25rem; }

    .qblock {
      border: 1px solid var(--surface-border);
      border-radius: var(--radius-sm);
      padding: 1rem;
      margin-bottom: 1rem;
      background: var(--surface-hover);
    }
    .qblock .remove-q { margin-top: 0.25rem; padding: 0.35rem 0.7rem; font-size: 0.78rem; }
    #add-question { margin-bottom: 0.5rem; padding: 0.45rem 0.9rem; font-size: 0.8rem; }

    .hp {
      position: absolute !important;
      left: -9999px !important;
      top: auto;
      width: 1px;
      height: 1px;
      overflow: hidden;
    }

    @media (max-width: 640px) {
      .wrap-wide { padding-left: 1rem; padding-right: 1rem; }
      .topbar { flex-direction: column; align-items: flex-start; }
      .card { padding: 1.5rem 1.25rem; }
      th:nth-child(3), td:nth-child(3) { display: none; }
    }