:root {
  --bg-deepest: #020817;
  --bg-dark: #0f172a;
  --bg-card: #0a0f1a;
  --bg-bio-setup: #0c1a2e;
  --bg-bio-saved: #0a1628;
  --bg-error: #1c0a0a;

  --border-default: #1e293b;
  --border-subtle: #0f172a;
  --border-focus: #334155;
  --border-blue: #1d4ed8;
  --border-bio-saved: #1e3a5f;
  --border-error: #7f1d1d;

  --text-primary: #e2e8f0;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-dim: #475569;
  --text-dimmer: #334155;

  --primary: #1d4ed8;
  --primary-light: #3b82f6;
  --accent-indigo: #6366f1;
  --accent-blue: #3b82f6;
  --accent-sky: #0ea5e9;
  --accent-violet: #8b5cf6;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-amber-dark: #78350f;

  --fit-strong: #22c55e;
  --fit-medium: #f59e0b;
  --fit-weak: #ef4444;

  --text-error: #fca5a5;

  --font-serif: 'Lora', serif;
  --font-mono: 'DM Mono', monospace;
}

@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Lora:wght@400;500;600&display=swap');

* {
  box-sizing: border-box;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg-deepest); }
::-webkit-scrollbar-thumb { background: var(--border-default); border-radius: 2px; }

body {
  margin: 0;
  padding: 0;
  background: var(--bg-deepest);
}

.app-root {
  min-height: 100vh;
  background: var(--bg-deepest);
  color: var(--text-primary);
  font-family: var(--font-serif);
  padding: 2.5rem 1.25rem;
}

.app-container {
  max-width: 680px;
  margin: 0 auto;
}

/* Header */
.header {
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 2rem;
}

.header-label {
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  letter-spacing: 0.2em;
  color: var(--text-dimmer);
  text-transform: uppercase;
  margin-bottom: 0.625rem;
}

.header-title {
  font-size: 2rem;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.02em;
  color: #f8fafc;
  line-height: 1.2;
}

.header-desc {
  color: var(--text-dim);
  font-size: 0.875rem;
  margin-top: 0.625rem;
  font-family: var(--font-mono);
}

/* Spinner */
.spinner-container {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  color: var(--text-muted);
  font-size: 0.875rem;
  font-family: var(--font-mono);
}

.spinner-circle {
  width: 1.125rem;
  height: 1.125rem;
  border: 2px solid var(--text-dimmer);
  border-top: 2px solid var(--text-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loading-center {
  margin-top: 2.5rem;
  display: flex;
  justify-content: center;
}

/* Bio Setup */
.bio-setup {
  background: var(--bg-bio-setup);
  border: 1px solid var(--border-blue);
  border-radius: 0.625rem;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
  animation: fadeIn 0.3s ease;
}

.bio-setup-label {
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  color: var(--primary-light);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.bio-setup-desc {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin: 0 0 0.875rem;
  line-height: 1.6;
}

.bio-save-btn {
  background: var(--border-default);
  border: none;
  border-radius: 0.4375rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  padding: 0.5625rem 1.25rem;
  cursor: default;
  transition: all 0.15s;
  min-height: 44px;
}

.bio-save-btn.bio-save-btn-active {
  background: var(--primary);
  color: #fff;
  cursor: pointer;
}

/* Bio Saved Bar */
.bio-saved-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-bio-saved);
  border: 1px solid var(--border-bio-saved);
  border-radius: 0.5rem;
  padding: 0.625rem 1rem;
  margin-bottom: 1.5rem;
}

.bio-saved-indicator {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--primary-light);
}

.bio-edit-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  cursor: pointer;
  letter-spacing: 0.05em;
  min-height: 44px;
}

/* Form */
.form-stack {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.form-card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: 0.625rem;
  padding: 1.25rem 1.5rem;
}

.form-card-title {
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.form-fields {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.form-label {
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  color: var(--text-dim);
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.375rem;
}

.form-label-optional {
  color: var(--text-dimmer);
}

.form-hint {
  font-size: 0.75rem;
  color: var(--text-dimmer);
  font-family: var(--font-mono);
  margin: 0 0 0.625rem;
}

.form-input {
  width: 100%;
  background: var(--bg-dark);
  border: 1px solid var(--border-default);
  border-radius: 0.5rem;
  color: var(--text-primary);
  font-size: 0.875rem;
  font-family: var(--font-serif);
  padding: 0.625rem 0.875rem;
  outline: none;
  box-sizing: border-box;
  transition: border-color 0.15s;
  min-height: 44px;
}

.form-input:focus {
  border-color: var(--border-focus);
}

.form-textarea {
  resize: vertical;
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

/* Checkboxes */
.checkbox-list {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text-dim);
  transition: color 0.15s;
}

.checkbox-row-active {
  color: var(--text-primary);
}

.checkbox-row-limit {
  font-size: 0.8125rem;
  font-family: var(--font-mono);
  color: var(--text-dim);
}

.checkbox-row-limit-active {
  color: var(--accent-amber);
}

.checkbox-box {
  width: 1.125rem;
  height: 1.125rem;
  border: 1px solid var(--text-dimmer);
  border-radius: 0.25rem;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.15s;
  cursor: pointer;
}

.checkbox-box-checked {
  border-color: var(--primary-light);
  background: var(--primary);
}

.checkbox-box-limit-checked {
  border-color: var(--accent-amber);
  background: var(--accent-amber-dark);
}

.char-limit-section {
  border-top: 1px solid var(--border-default);
  margin-top: 1rem;
  padding-top: 0.875rem;
}

/* Error */
.error-bar {
  background: var(--bg-error);
  border: 1px solid var(--border-error);
  border-radius: 0.5rem;
  padding: 0.625rem 1rem;
  font-size: 0.8125rem;
  color: var(--text-error);
  font-family: var(--font-mono);
}

/* Generate Button */
.generate-btn {
  background: var(--text-primary);
  border: none;
  border-radius: 0.5625rem;
  color: var(--bg-deepest);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  padding: 0.875rem 1.5rem;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.2s;
  margin-top: 0.25rem;
  min-height: 44px;
}

.generate-btn.generate-btn-loading {
  background: var(--border-default);
  color: var(--text-dim);
  cursor: default;
}

/* Section Card */
.section-card {
  background: var(--bg-dark);
  border: 1px solid var(--border-default);
  border-radius: 0.625rem;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
}

.section-card.section-accent-indigo { border-color: var(--accent-indigo); }
.section-card.section-accent-blue { border-color: var(--accent-blue); }
.section-card.section-accent-sky { border-color: var(--accent-sky); }
.section-card.section-accent-violet { border-color: var(--accent-violet); }
.section-card.section-accent-emerald { border-color: var(--accent-emerald); }
.section-card.section-accent-amber { border-color: var(--accent-amber); }

.section-title {
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 0.875rem;
  font-weight: 600;
}

.section-title.section-accent-indigo { color: var(--accent-indigo); }
.section-title.section-accent-blue { color: var(--accent-blue); }
.section-title.section-accent-sky { color: var(--accent-sky); }
.section-title.section-accent-violet { color: var(--accent-violet); }
.section-title.section-accent-emerald { color: var(--accent-emerald); }
.section-title.section-accent-amber { color: var(--accent-amber); }

/* Copy Button */
.copy-btn {
  background: transparent;
  border: 1px solid var(--text-dimmer);
  border-radius: 0.375rem;
  color: var(--text-dim);
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  padding: 0.1875rem 0.625rem;
  cursor: pointer;
  letter-spacing: 0.05em;
  transition: all 0.15s;
  min-height: 44px;
}

.copy-btn-copied {
  color: var(--fit-strong);
}

/* Output Block */
.output-block-content {
  position: relative;
}

.output-text {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--text-secondary);
  font-family: var(--font-serif);
  white-space: pre-wrap;
}

.output-copy-row {
  margin-top: 0.75rem;
  display: flex;
  justify-content: flex-end;
}

/* Fit Signal */
.fit-signal-card {
  background: var(--bg-card);
  border: 1px solid var(--text-dimmer);
  border-radius: 0.625rem;
  padding: 1rem 1.5rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.fit-signal-card.fit-signal-strong { border-color: var(--fit-strong); }
.fit-signal-card.fit-signal-medium { border-color: var(--fit-medium); }
.fit-signal-card.fit-signal-weak { border-color: var(--fit-weak); }

.fit-signal-level {
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  min-width: 3.75rem;
}

.fit-signal-level.fit-signal-strong { color: var(--fit-strong); }
.fit-signal-level.fit-signal-medium { color: var(--fit-medium); }
.fit-signal-level.fit-signal-weak { color: var(--fit-weak); }

.fit-signal-reasoning {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Results */
.results-container {
  margin-top: 3rem;
  animation: fadeIn 0.4s ease;
}

.results-header {
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  letter-spacing: 0.2em;
  color: var(--text-dimmer);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.results-footer {
  text-align: center;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
}

.new-prospect-btn {
  background: transparent;
  border: 1px solid var(--border-default);
  border-radius: 0.4375rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.5rem 1.25rem;
  cursor: pointer;
  letter-spacing: 0.05em;
  min-height: 44px;
}

/* Responsive */
@media (max-width: 640px) {
  .app-root {
    padding: 1.5rem 1rem;
  }

  .header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
  }

  .header-title {
    font-size: 1.5rem;
  }

  .form-card {
    padding: 1rem;
  }

  .bio-setup {
    padding: 1rem;
  }

  .section-card {
    padding: 1rem;
  }

  .form-grid-2 {
    grid-template-columns: 1fr;
  }

  .fit-signal-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 1rem;
  }

  .form-input {
    font-size: 1rem;
  }

  .generate-btn {
    width: 100%;
  }

  .bio-save-btn {
    width: 100%;
  }
}

/* Search History Panel */
.search-history-panel {
  margin-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
}

.search-history-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.search-history-title {
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  letter-spacing: 0.2em;
  color: var(--text-dimmer);
  text-transform: uppercase;
}

.search-history-toggle-btn {
  background: transparent;
  border: 1px solid var(--border-default);
  border-radius: 0.375rem;
  color: var(--text-dim);
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  padding: 0.375rem 0.75rem;
  cursor: pointer;
  letter-spacing: 0.05em;
  min-height: 44px;
  transition: color 0.15s;
}

.search-history-toggle-btn:hover {
  color: var(--text-muted);
}

.search-history-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.search-history-empty {
  font-size: 0.8125rem;
  color: var(--text-dimmer);
  font-family: var(--font-mono);
  text-align: center;
  padding: 1rem 0;
}

.search-history-entry {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  cursor: pointer;
  transition: border-color 0.15s;
  animation: fadeIn 0.3s ease;
}

.search-history-entry:hover {
  border-color: var(--border-focus);
}

.search-history-entry-info {
  flex: 1;
  min-width: 0;
}

.search-history-entry-name {
  font-size: 0.875rem;
  color: var(--text-primary);
  font-family: var(--font-serif);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-history-entry-meta {
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  color: var(--text-dimmer);
  margin-top: 0.25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-history-entry-fit {
  font-size: 0.625rem;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  flex-shrink: 0;
}

.search-history-entry-fit.fit-strong { color: var(--fit-strong); }
.search-history-entry-fit.fit-medium { color: var(--fit-medium); }
.search-history-entry-fit.fit-weak { color: var(--fit-weak); }

.search-history-entry-actions {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  flex-shrink: 0;
}

.search-history-delete-btn {
  background: transparent;
  border: none;
  color: var(--text-dimmer);
  font-size: 0.75rem;
  cursor: pointer;
  padding: 0.25rem 0.375rem;
  border-radius: 0.25rem;
  min-height: 44px;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s;
}

.search-history-delete-btn:hover {
  color: var(--fit-weak);
}

.search-history-clear-btn {
  background: transparent;
  border: 1px solid var(--border-error);
  border-radius: 0.375rem;
  color: var(--text-error);
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  padding: 0.375rem 0.75rem;
  cursor: pointer;
  letter-spacing: 0.05em;
  min-height: 44px;
  transition: all 0.15s;
  margin-top: 0.75rem;
}

.search-history-clear-btn:hover {
  background: var(--bg-error);
}

.search-history-actions-row {
  display: flex;
  justify-content: flex-end;
}

@media (max-width: 640px) {
  .search-history-entry {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .search-history-entry-actions {
    align-self: flex-end;
  }
}

.search-history-panel {
  margin-top: 12px;
  margin-bottom: 8px;
}

.search-history-title {
  font-size: 13px;
  font-weight: 600;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
  padding-left: 2px;
}

.search-history-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.search-history-entry {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-radius: 10px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.search-history-entry:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(99,102,241,0.3);
}

.search-history-entry-main {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  flex: 1;
}

.search-history-entry-name {
  font-size: 14px;
  font-weight: 600;
  color: #e2e8f0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-history-entry-title {
  font-size: 12px;
  color: #94a3b8;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-history-entry-outputs {
  font-size: 11px;
  color: #6366f1;
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-history-entry-side {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  margin-left: 12px;
  flex-shrink: 0;
}

.search-history-entry-time {
  font-size: 11px;
  color: #64748b;
  white-space: nowrap;
}

.search-history-remove-btn {
  background: none;
  border: none;
  color: #64748b;
  font-size: 16px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
  border-radius: 4px;
  transition: color 0.15s, background 0.15s;
}

.search-history-remove-btn:hover {
  color: #ef4444;
  background: rgba(239,68,68,0.1);
}

.results-reactions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  padding: 8px 0;
}

.reaction-btn {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 14px;
  cursor: pointer;
  color: #e2e8f0;
  transition: background 0.15s, border-color 0.15s;
}

.reaction-btn:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(99,102,241,0.4);
}