/* ========================================================================
   Prompt Composer — public site styling
   Tokens match phbeks.com (deep dark, teal accent, Inter + JetBrains Mono).
   ======================================================================== */

:root {
  --bg: #0c0f16;
  --bg-card: #141820;
  --bg-card-2: #1a1f2b;
  --bg-card-hover: #1f2530;
  --border: #1e2530;
  --border-strong: #2a3140;
  --accent: #00d4aa;
  --accent-dim: rgba(0,212,170,0.12);
  --accent-soft: rgba(0,212,170,0.18);
  --blue: #3b82f6;
  --purple: #a855f7;
  --orange: #f59e0b;
  --good: #10b981;
  --warn: #f59e0b;
  --bad: #ef4444;
  --text: #e2e8f0;
  --text-dim: #8492a6;
  --text-muted: #4a5568;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Consolas, monospace;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
}

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

html { scroll-behavior: smooth; }
@media (pointer: coarse) { html { scroll-behavior: auto; } }

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.55;
  min-height: 100vh;
  min-height: 100dvh;
  -webkit-tap-highlight-color: transparent;
  -webkit-overflow-scrolling: touch;
  overflow-x: hidden;
}
body {
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

a { color: var(--accent); text-decoration: none; transition: opacity 0.2s; }
a:hover { opacity: 0.8; }

button { font: inherit; color: inherit; }

/* ========================================================================
   Layout
   ======================================================================== */

.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.main { padding: 24px 24px 60px; display: flex; flex-direction: column; gap: 28px; }

/* ========================================================================
   Hero
   ======================================================================== */

.hero {
  padding: 56px 0 36px;
  padding-top: calc(56px + env(safe-area-inset-top));
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(0,212,170,0.04) 0%, transparent 100%);
}
.hero-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  flex-wrap: wrap;
}
.hero-text { max-width: 560px; }
.hero-label {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: lowercase;
  opacity: 0.85;
  margin-bottom: 12px;
}
.hero-back {
  color: var(--accent);
  border-bottom: 1px dashed transparent;
  transition: border-color 0.15s ease, opacity 0.15s ease;
}
.hero-back:hover {
  opacity: 1;
  border-bottom-color: var(--accent);
}
.hero h1 {
  font-size: clamp(2.2rem, 5.5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 14px;
}
.hero h1 span { color: var(--accent); }
.hero-sub {
  font-size: 1.02rem;
  color: var(--text-dim);
  max-width: 520px;
  line-height: 1.65;
}
.hero-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  flex-shrink: 0;
}

/* ========================================================================
   Section labels (mono, uppercase)
   ======================================================================== */

.band-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.band-label.inline {
  margin-top: 14px;
  margin-bottom: 2px;
  padding-left: 2px;
}

.band {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ========================================================================
   Slot meter + score chip (hero-right)
   ======================================================================== */

.slot-meter {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  min-width: 140px;
}
.slot-count {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}
.slot-bar {
  width: 140px;
  height: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.slot-fill {
  height: 100%;
  width: 0%;
  background: var(--bad);
  transition: width 0.25s ease, background 0.25s ease;
}
.slot-fill[data-fill="warn"] { background: var(--warn); }
.slot-fill[data-fill="good"] { background: var(--accent); }
.slot-fill[data-fill="full"] { background: var(--good); }

.score-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 12px;
}
.score-label {
  color: var(--text-muted);
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 10px;
}
.score-val {
  font-family: var(--mono);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  font-size: 14px;
  min-width: 1.8em;
  text-align: center;
}
.score-best {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-muted);
  border-left: 1px solid var(--border-strong);
  padding-left: 8px;
}

/* ========================================================================
   Library cards (Templates + Archaeology)
   ======================================================================== */

.library-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.library-card[open] { border-color: var(--border-strong); }
.library-card summary {
  cursor: pointer;
  font-weight: 600;
  user-select: none;
  list-style: none;
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}
.library-card summary::-webkit-details-marker { display: none; }
.library-card summary::before {
  content: "▸";
  font-size: 10px;
  color: var(--text-muted);
  margin-right: 6px;
  transition: transform 0.15s ease;
}
.library-card[open] summary::before { transform: rotate(90deg); }
.library-hint {
  font-weight: 400;
  color: var(--text-dim);
  font-size: 13px;
}
.library-blurb {
  margin-top: 10px;
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.55;
}
.library-blurb em { color: var(--accent); font-style: normal; }
.library-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
  margin-top: 14px;
}
.template-card {
  background: var(--bg-card-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  cursor: pointer;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--text);
  transition: background 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}
.template-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
  transform: translateY(-1px);
}
.template-title {
  font-weight: 600;
  font-size: 14px;
}
.template-blurb {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.5;
}
.template-source {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  margin-top: 2px;
}

/* ========================================================================
   Composer grid
   ======================================================================== */

.composer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 420px);
  gap: 24px;
  align-items: start;
}
@media (max-width: 920px) {
  .composer-grid { grid-template-columns: 1fr; }
}

.composer-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}

/* ========================================================================
   Field cards
   ======================================================================== */

.field-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.2s ease;
}
.field-card:focus-within { border-color: var(--accent); }
.field-card.addon { background: var(--bg-card-2); }

.field-label {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.field-name {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}
.field-hint {
  font-size: 12.5px;
  color: var(--text-dim);
  font-weight: 400;
}

.field-card textarea {
  width: 100%;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1.55;
  resize: vertical;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  -webkit-appearance: none;
  -webkit-text-size-adjust: 100%;
}
.field-card.addon textarea { background: var(--bg-card); }
.field-card textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.addons-card {
  background: var(--bg-card);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.addons-card summary {
  cursor: pointer;
  font-family: var(--mono);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  user-select: none;
  list-style: none;
}
.addons-card summary::-webkit-details-marker { display: none; }
.addons-card summary::before {
  content: "▸ ";
  font-size: 10px;
  transition: transform 0.15s ease;
  display: inline-block;
}
.addons-card[open] summary::before { transform: rotate(90deg); }

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.link-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  font-size: 12.5px;
  padding: 7px 14px;
  border-radius: 8px;
  font-family: inherit;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.link-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text);
  border-color: var(--border-strong);
}
.link-btn.copied { color: var(--accent); border-color: var(--accent); }

/* ========================================================================
   Suggestion chips
   ======================================================================== */

.suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin-top: 4px;
}
.suggestions-label {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-right: 2px;
}
.chip {
  background: var(--bg-card-2);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font: inherit;
  font-size: 12px;
  line-height: 1.2;
  padding: 5px 11px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease, border-color 0.12s ease;
  white-space: nowrap;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
}
.chip:hover {
  background: var(--accent-dim);
  color: var(--accent);
  border-color: var(--accent);
}
.chip:active { transform: translateY(1px); }

/* ========================================================================
   Examples sub-form
   ======================================================================== */

.optional-tag {
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 500;
  background: var(--accent-dim);
  color: var(--accent);
  border-radius: 999px;
  padding: 2px 8px;
  margin-left: 8px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.examples-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.example-pair {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.example-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.example-num {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}
.example-del {
  background: none;
  border: 0;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 13px;
  width: 26px;
  height: 26px;
  border-radius: 6px;
}
.example-del:hover {
  color: var(--bad);
  background: rgba(239, 68, 68, 0.1);
}
.example-sublabel {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.example-input, .example-output {
  width: 100%;
  background: var(--bg-card-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.5;
  resize: vertical;
  outline: none;
  transition: border-color 0.15s ease;
}
.example-input:focus, .example-output:focus { border-color: var(--accent); }
.add-example-btn {
  align-self: flex-start;
  background: transparent;
  border: 1px dashed var(--border-strong);
  color: var(--text-dim);
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.05em;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.add-example-btn:hover:not(:disabled) {
  background: var(--accent-dim);
  color: var(--accent);
  border-color: var(--accent);
  border-style: solid;
}
.add-example-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ========================================================================
   Preview pane
   ======================================================================== */

.preview-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  position: sticky;
  top: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: calc(100vh - 32px);
}
@media (max-width: 920px) {
  .preview-card { position: static; max-height: none; }
}

.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.preview-header h2 {
  margin: 0;
  font-size: 14px;
  font-family: var(--mono);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}
.token-est {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}

.fmt-toggle {
  display: inline-flex;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 3px;
  gap: 2px;
  align-self: flex-start;
}
.fmt-tab {
  background: transparent;
  border: 0;
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease;
}
.fmt-tab.is-active {
  background: var(--bg-card-hover);
  color: var(--accent);
}
.fmt-caption {
  margin: 0;
  font-size: 11px;
  color: var(--text-muted);
  font-style: italic;
}

.preview-text {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.65;
  white-space: pre-wrap;
  word-wrap: break-word;
  margin: 0;
  min-height: 240px;
  flex: 1;
  overflow-y: auto;
  color: var(--text);
}
.preview-text:empty::before {
  content: "Start filling slots on the left — preview appears here.";
  color: var(--text-muted);
  font-style: italic;
}

.preview-actions { display: flex; gap: 8px; }

.copy-btn {
  background: var(--bg-card-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
  font-family: inherit;
  flex: 1;
}
.copy-btn:hover { background: var(--bg-card-hover); border-color: var(--border-strong); }
.copy-btn.primary {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}
.copy-btn.primary:hover { background: var(--accent); filter: brightness(1.08); }
.copy-btn.copied { color: var(--accent); border-color: var(--accent); background: var(--bg-card-2); }
.copy-btn.primary.copied { background: var(--good); color: var(--bg); border-color: var(--good); }

.preview-hint {
  margin: 0;
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
}

/* ========================================================================
   Drafts
   ======================================================================== */

.drafts-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.drafts-inner {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
}
.drafts-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.drafts-header h3 {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}
.drafts-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.draft-item {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-card-2);
  border-radius: 8px;
  padding: 4px 4px 4px 12px;
  transition: background 0.15s ease;
}
.draft-item:hover { background: var(--bg-card-hover); }
.draft-load {
  flex: 1;
  background: none;
  border: 0;
  text-align: left;
  cursor: pointer;
  color: var(--text);
  padding: 8px 0;
  font: inherit;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.draft-when {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--text-muted);
  flex-shrink: 0;
  min-width: 70px;
  letter-spacing: 0.03em;
}
.draft-snippet {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
  flex: 1;
  min-width: 0;
}
.draft-del {
  background: none;
  border: 0;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 13px;
  width: 30px;
  height: 30px;
  border-radius: 6px;
  flex-shrink: 0;
}
.draft-del:hover { color: var(--bad); background: rgba(239,68,68,0.1); }

/* ========================================================================
   Toast
   ======================================================================== */

.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: 10px 22px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 100;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ========================================================================
   Footer
   ======================================================================== */

.footer {
  border-top: 1px solid var(--border);
  margin-top: 40px;
  padding: 28px 0 36px;
  padding-bottom: calc(36px + env(safe-area-inset-bottom));
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 12.5px;
  color: var(--text-dim);
}
.footer-brand { font-weight: 500; }
.footer-brand a { color: var(--accent); }
.footer-count {
  font-family: var(--mono);
  color: var(--text-muted);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}
.footer-meta {
  border-top: 1px solid var(--border);
  padding-top: 10px;
  margin-top: 4px;
  font-size: 11.5px;
}
.footer-disclaimer { color: var(--text-muted); max-width: 640px; line-height: 1.5; }
.footer-links { color: var(--text-muted); white-space: nowrap; display: inline-flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.footer-links a { color: var(--text-dim); }
.footer-links a:hover { color: var(--accent); }
.footer-gh { display: inline-flex; align-items: center; gap: 5px; }
.footer-gh svg { transition: transform 0.15s ease; }
.footer-gh:hover svg { transform: scale(1.15); }

/* ========================================================================
   Mobile polish
   ======================================================================== */

@media (max-width: 720px) {
  .container { padding: 0 16px; }
  .main { padding: 16px 16px 40px; gap: 20px; }
  .hero { padding: 36px 0 24px; padding-top: calc(36px + env(safe-area-inset-top)); }
  .hero-inner { flex-direction: column; align-items: flex-start; }
  .hero-meta { flex-direction: row; align-items: center; flex-wrap: wrap; }
  .field-card { padding: 12px 14px; }
  .preview-card { padding: 14px; }
  .preview-text { font-size: 12px; padding: 12px; min-height: 180px; }
  .preview-actions { flex-direction: column; }
  .copy-btn { min-height: 44px; }
  .library-list { grid-template-columns: 1fr; }
  .footer-row { flex-direction: column; align-items: flex-start; gap: 6px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 2rem; }
  .hero-sub { font-size: 0.95rem; }
}

/* Touch targets */
@media (hover: none) {
  .copy-btn { min-height: 44px; }
  .link-btn { min-height: 36px; }
}