:root {
  --bg: #0d1217;
  --bg-soft: #121820;
  --card: #16202c;
  --card-2: #1c2938;
  --border: #26364a;
  --border-strong: #384e6b;
  --text: #eaf1f8;
  --text-dim: #acc0d8;
  --muted: #7287a3;
  --accent: #38bdf8;
  --accent-strong: #7dd3fc;
  --accent-dim: #0284c7;
  --amber: #fbbf24;
  --success: #34d399;
  --danger: #f87171;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 12px 36px rgba(0, 0, 0, 0.45);
  --font: "Inter", "SF Pro Text", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(1000px 500px at 80% -10%, rgba(2, 132, 199, 0.22), transparent 60%),
    radial-gradient(800px 400px at -10% 30%, rgba(56, 189, 248, 0.12), transparent 55%);
  z-index: 0;
}

main, header, footer { position: relative; z-index: 1; }

/* Topbar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 22px;
  border-bottom: 1px solid var(--border);
  background: rgba(13, 18, 23, 0.88);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand-name { font-weight: 700; font-size: 17px; letter-spacing: 0.2px; color: #fff; }
.brand-tag { font-size: 12px; color: var(--muted); }
.topbar-right { display: flex; align-items: center; gap: 10px; }

.badge {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  color: var(--text-dim);
  background: var(--bg-soft);
}
.badge-ok { color: var(--accent); border-color: #0369a1; background: #082f49; }
.badge-off { color: var(--amber); border-color: #78350f; background: #451a03; }
.badge-pending { color: var(--muted); }

/* Layout */
.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 20px 60px;
}

.card {
  background: linear-gradient(180deg, var(--card), var(--bg-soft));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  margin-bottom: 22px;
  box-shadow: var(--shadow);
}

.page-title {
  font-size: 26px;
  line-height: 1.25;
  margin: 0 0 8px;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: #fff;
}
.page-sub { color: var(--text-dim); margin: 0 0 24px; max-width: 75ch; }

/* Tabs */
.tab-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
}
.tab-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-dim);
  font-size: 14.5px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s;
}
.tab-btn:hover { color: var(--text); background: var(--card); }
.tab-btn.active {
  color: var(--accent-strong);
  background: var(--card-2);
  border-color: var(--border-strong);
}
.tab-panel.hidden { display: none; }

/* Form Controls */
.form { display: flex; flex-direction: column; gap: 20px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field label { font-size: 13.5px; font-weight: 600; color: var(--text-dim); }

.topic-row {
  display: flex;
  gap: 10px;
}
input[type="text"], input[type="number"], select, textarea {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 11px 13px;
  font-size: 14.5px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  width: 100%;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--accent-dim);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}
input::placeholder { color: var(--muted); }

.grid-controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.count-row {
  display: flex;
  gap: 10px;
  align-items: center;
}
.count-row input { max-width: 90px; }
.quick { display: flex; gap: 6px; }
.quick-btn {
  background: var(--card-2);
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  cursor: pointer;
  font-size: 13.5px;
  transition: all 0.15s;
}
.quick-btn:hover { color: var(--text); border-color: var(--border-strong); }

/* Buttons */
.btn-primary {
  background: linear-gradient(135deg, #0284c7, #0369a1);
  border: 1px solid #38bdf8;
  color: #fff;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.15s;
}
.btn-primary:hover {
  filter: brightness(1.15);
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.35);
}
.btn-primary:disabled { opacity: 0.55; cursor: wait; }

.btn-suggest {
  background: var(--card-2);
  border: 1px solid var(--border-strong);
  color: var(--accent-strong);
  font-weight: 600;
  padding: 0 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s;
}
.btn-suggest:hover { background: #1e3a5f; }
.btn-suggest:disabled { opacity: 0.5; cursor: wait; }

.btn-secondary {
  background: var(--card-2);
  border: 1px solid var(--border-strong);
  color: var(--text);
  font-weight: 600;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13.5px;
}
.btn-secondary:hover { background: var(--border-strong); }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 9px 15px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  transition: all 0.15s;
}
.btn-ghost:hover { color: var(--text); border-color: var(--border-strong); }

.icon-btn {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text-dim);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}
.icon-btn:hover { color: #fff; border-color: var(--border-strong); }

.suggest-note {
  margin-top: 6px;
  font-size: 13px;
  color: var(--accent-strong);
  background: rgba(56, 189, 248, 0.08);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent);
}
.field-error {
  margin-top: 6px;
  font-size: 13px;
  color: var(--danger);
}
.hidden { display: none !important; }

/* Results */
.results-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 14px;
  margin-top: 24px;
  border-bottom: 1px solid var(--border);
}
.results-meta { font-size: 14px; color: var(--text-dim); font-weight: 500; }
.results-actions { display: flex; flex-wrap: wrap; gap: 8px; }

.prompt-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 18px;
}

.prompt-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color 0.15s;
}
.prompt-card:hover { border-color: var(--border-strong); }

.prompt-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}
.card-seq {
  display: inline-block;
  background: var(--card-2);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
  margin-right: 8px;
}
.card-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin: 0 0 4px;
}
.card-badges { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.mini-badge {
  font-size: 11.5px;
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--card-2);
  border: 1px solid var(--border);
  color: var(--text-dim);
}

.prompt-block {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.6;
  color: #d1e2f3;
  white-space: pre-wrap;
  word-break: break-word;
  position: relative;
}

.field-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}
.field-label-row .btn-ghost {
  padding: 3px 8px;
  font-size: 11px;
  white-space: nowrap;
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
  background: rgba(18, 24, 32, 0.6);
  padding: 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.meta-item { display: flex; flex-direction: column; gap: 4px; }
.meta-label { font-size: 11px; font-weight: 700; text-transform: uppercase; color: var(--muted); letter-spacing: 0.5px; }
.meta-val { font-size: 13.5px; color: var(--text); }

.keywords-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  max-height: 86px;
  overflow-y: auto;
  padding: 4px 0;
}
.kw-tag {
  font-size: 11.5px;
  background: var(--card-2);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 2px 7px;
  border-radius: 5px;
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 6px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal {
  background: var(--card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  max-width: 600px;
  width: 100%;
  box-shadow: var(--shadow);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-head h3 { margin: 0; font-size: 18px; color: #fff; }
.modal-close {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 18px;
  cursor: pointer;
}
.modal-close:hover { color: #fff; }
.settings-body { display: flex; flex-direction: column; gap: 14px; }
.settings-actions { display: flex; gap: 10px; margin-top: 10px; }

/* History Drawer */
.history-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 360px;
  background: var(--card);
  border-left: 1px solid var(--border-strong);
  box-shadow: var(--shadow);
  z-index: 110;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.history-list {
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.history-item {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  padding: 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.history-item:hover { border-color: var(--accent); }
.history-item-topic { font-weight: 600; color: #fff; font-size: 14px; }
.history-item-meta { font-size: 12px; color: var(--muted); margin-top: 4px; }

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: #0f172a;
  border: 1px solid var(--accent);
  color: #fff;
  padding: 10px 20px;
  border-radius: 999px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  font-size: 14px;
  font-weight: 500;
  z-index: 200;
  animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translate(-50%, 10px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

/* Media Queries & Mobile Responsiveness */
@media (max-width: 768px) {
  .wrap {
    padding: 16px 12px 60px;
  }

  .topbar {
    padding: 10px 14px;
  }

  .brand-name {
    font-size: 15px;
  }

  .brand-tag {
    display: none;
  }

  .card {
    padding: 16px 14px;
    border-radius: var(--radius-sm);
  }

  .page-title {
    font-size: 20px;
  }

  .topic-row {
    flex-direction: column;
  }

  .btn-suggest {
    padding: 10px 14px;
    height: 42px;
    justify-content: center;
  }

  .grid-controls {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .count-row {
    flex-wrap: wrap;
  }

  .quick {
    flex-wrap: wrap;
  }

  .quick-btn {
    flex: 1;
    text-align: center;
    padding: 8px 0;
  }

  .btn-primary {
    width: 100%;
    justify-content: center;
  }

  .results-head {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .results-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .results-actions button {
    width: 100%;
    justify-content: center;
    padding: 8px 10px;
    font-size: 12.5px;
  }

  .prompt-card {
    padding: 14px 12px;
  }

  .prompt-card-head {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .prompt-card-head .copy-prompt-btn {
    width: 100%;
    justify-content: center;
  }

  .meta-grid {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 12px;
  }

  .card-actions {
    flex-direction: column;
  }

  .card-actions button {
    width: 100%;
    justify-content: center;
  }

  .topbar-right .badge {
    font-size: 11px;
    padding: 2px 7px;
  }

  #self-check {
    display: none;
  }

  .history-panel {
    width: 100%;
    max-width: 100%;
  }
}