/* Non-AI palette: warm neutrals, single accent */
:root {
  --bg: #f6f5f3;
  --surface: #ffffff;
  --text: #1c1b19;
  --text-muted: #5c5a57;
  --border: #dcd9d4;
  --accent: #0d7377;
  --accent-hover: #0a5c5f;
  --error: #b91c1c;
  --success: #166534;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.header {
  padding: 2rem 1.5rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.header h1 {
  margin: 0 0 0.5rem;
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.tagline {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.main {
  flex: 1;
  max-width: 32rem;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  width: 100%;
}

.intro {
  margin-bottom: 2rem;
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.intro p {
  margin: 0;
}

.form-section h2,
.info h2 {
  margin: 0 0 1rem;
  font-size: 1.125rem;
  font-weight: 600;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
}

.hint {
  font-weight: 400;
  color: var(--text-muted);
}

.form input,
.form textarea {
  padding: 0.5rem 0.75rem;
  font-size: 1rem;
  font-family: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
}

.form input::placeholder,
.form textarea::placeholder {
  color: var(--text-muted);
}

.form input:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(13, 115, 119, 0.15);
}

.form textarea {
  resize: vertical;
  min-height: 4rem;
}

.keywords-label {
  display: block;
}

.keyword-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.keyword-group + .keyword-group {
  margin-top: 0.5rem;
}

.keyword-group-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
}

.keyword-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.keyword-tag {
  padding: 0.35rem 0.65rem;
  font-size: 0.875rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  user-select: none;
  transition: border-color 0.15s, background 0.15s;
}

.keyword-tag:hover {
  border-color: var(--accent);
}

.keyword-tag.selected {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* Custom keyword tag-input */
.tag-input-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 0.35rem 0.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: text;
}

.tag-input-wrapper:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(13, 115, 119, 0.15);
}

.tag-input-wrapper input {
  flex: 1;
  min-width: 8rem;
  border: none !important;
  outline: none !important;
  box-shadow: none !important;
  padding: 0.15rem 0.25rem;
  font-size: 0.875rem;
  background: transparent;
}

.custom-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.5rem;
  font-size: 0.8125rem;
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  white-space: nowrap;
}

.chip-remove {
  background: none;
  border: none;
  color: #fff;
  font-size: 0.9rem;
  cursor: pointer;
  padding: 0;
  line-height: 1;
  opacity: 0.75;
}

.chip-remove:hover { opacity: 1; }

.btn {
  padding: 0.625rem 1.25rem;
  font-size: 1rem;
  font-weight: 500;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  margin-top: 0.25rem;
}

.btn:hover {
  background: var(--accent-hover);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-message {
  margin-top: 1rem;
  font-size: 0.875rem;
  min-height: 1.25rem;
}

.form-message.success {
  color: var(--success);
}

.form-message.error {
  color: var(--error);
}

.info {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.info ul {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.info li {
  margin-bottom: 0.5rem;
}

.footer {
  padding: 1rem 1.5rem;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.footer p {
  margin: 0;
}