:root {
  --bg: #0d1117;
  --bg-card: #161b22;
  --bg-input: #1c2128;
  --border: #30363d;
  --text-main: #e6edf3;
  --text-muted: #7d8590;
  --primary: #4493f8;
  --radius: 10px;
}

[data-theme="light"] {
  --bg: #f6f8fa;
  --bg-card: #ffffff;
  --bg-input: #f0f2f5;
  --border: #d0d7de;
  --text-main: #1f2328;
  --text-muted: #656d76;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--bg); color: var(--text-main); font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; font-size: 15px; line-height: 1.6; padding: 1.5rem 1rem 3rem; }
.tool-wrapper { max-width: 720px; margin: 0 auto; }

.tool-header { text-align: center; margin-bottom: 2rem; }
.tool-header__badge { display: inline-flex; align-items: center; gap: 0.4rem; background: rgba(68,147,248,0.1); border: 1px solid rgba(68,147,248,0.3); color: var(--primary); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 0.3rem 0.8rem; border-radius: 20px; margin-bottom: 1rem; }
.tool-header h1 { font-size: 1.6rem; font-weight: 800; color: var(--text-main); margin-bottom: 0.5rem; }
.tool-header p { color: var(--text-muted); max-width: 560px; margin: 0 auto; font-size: 0.9rem; }

.config-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; margin-bottom: 1.25rem; }
.section-title { font-size: 1rem; font-weight: 700; color: var(--text-main); }
.section-sub { font-size: 0.83rem; color: var(--text-muted); margin-top: 0.25rem; margin-bottom: 1rem; }
.section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.25rem; }
.header-actions { display: flex; gap: 0.75rem; }
.link-btn { background: none; border: none; color: var(--primary); font-size: 0.8rem; cursor: pointer; padding: 0; text-decoration: underline; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1rem; }
.form-field { display: flex; flex-direction: column; gap: 0.35rem; }
.form-field label { font-size: 0.8rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.input-field { background: var(--bg-input); border: 1px solid var(--border); border-radius: 8px; color: var(--text-main); font-size: 0.9rem; padding: 0.55rem 0.75rem; width: 100%; transition: border-color 0.15s; }
.input-field:focus { outline: none; border-color: var(--primary); }

.question-list { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 1.25rem; }
.q-item { display: flex; align-items: flex-start; gap: 0.75rem; background: var(--bg-input); border: 1px solid var(--border); border-radius: 8px; padding: 0.6rem 0.85rem; cursor: pointer; transition: border-color 0.15s; }
.q-item:hover { border-color: var(--primary); }
.q-item.checked { border-color: var(--primary); background: rgba(68,147,248,0.06); }
.q-item input[type="checkbox"] { margin-top: 0.2rem; flex-shrink: 0; accent-color: var(--primary); width: 15px; height: 15px; cursor: pointer; }
.q-text { font-size: 0.87rem; color: var(--text-main); flex: 1; }
.q-cat { display: block; font-size: 0.73rem; color: var(--text-muted); margin-top: 0.05rem; }
.q-del { background: none; border: none; color: var(--text-muted); font-size: 0.9rem; cursor: pointer; padding: 0 0.2rem; margin-left: auto; }
.q-del:hover { color: #e05252; }

.add-custom { display: flex; gap: 0.5rem; }
.add-btn { background: var(--bg-input); border: 1px solid var(--border); border-radius: 8px; color: var(--text-muted); font-size: 0.85rem; padding: 0.55rem 1rem; cursor: pointer; white-space: nowrap; transition: border-color 0.15s, color 0.15s; }
.add-btn:hover { border-color: var(--primary); color: var(--primary); }

.action-row { text-align: center; margin: 1.5rem 0; }
.primary-btn { background: var(--primary); color: #fff; border: none; border-radius: 8px; padding: 0.75rem 2rem; font-size: 0.95rem; font-weight: 700; cursor: pointer; transition: opacity 0.15s; }
.primary-btn:hover { opacity: 0.88; }

.form-preview { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.preview-toolbar { display: flex; align-items: center; justify-content: space-between; padding: 0.85rem 1.25rem; border-bottom: 1px solid var(--border); background: var(--bg-input); }
.preview-label { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); }
.ctrl-btn { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; color: var(--text-muted); font-size: 0.82rem; padding: 0.4rem 0.85rem; cursor: pointer; transition: border-color 0.15s, color 0.15s; }
.ctrl-btn:hover { border-color: var(--primary); color: var(--primary); }

.printable-form { padding: 2rem; }
.pf-title { font-size: 1.2rem; font-weight: 800; color: var(--text-main); margin-bottom: 0.25rem; }
.pf-sub { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1.5rem; }
.pf-client-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1.5rem; }
.pf-field { border-bottom: 1px solid var(--border); padding-bottom: 0.25rem; }
.pf-field-label { font-size: 0.73rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); margin-bottom: 0.5rem; }
.pf-questions { display: flex; flex-direction: column; gap: 0.65rem; margin-bottom: 1.5rem; }
.pf-question { display: flex; align-items: flex-start; gap: 0.75rem; font-size: 0.87rem; color: var(--text-main); }
.pf-checkbox { width: 16px; height: 16px; border: 1.5px solid var(--border); border-radius: 3px; flex-shrink: 0; margin-top: 0.1rem; }
.pf-sig-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }
.pf-sig-label { font-size: 0.73rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); margin-bottom: 2rem; }
.pf-sig-line { border-bottom: 1px solid var(--border); }

@media print {
  body { background: #fff; color: #111; padding: 0; }
  .tool-header, .config-card, .action-row, .preview-toolbar { display: none !important; }
  .form-preview { border: none; }
  .printable-form { padding: 0; }
  .pf-title, .pf-sub, .pf-field-label, .pf-question, .pf-sig-label { color: #111; }
  .pf-field, .pf-sig-line { border-color: #999; }
  .pf-checkbox { border-color: #999; }
}

@media (max-width: 540px) {
  .form-row, .pf-client-row, .pf-sig-row { grid-template-columns: 1fr; }
}