/* ============================================================
   PROMPT TOOL — main.css
   Dark mode by default · Light mode via [data-theme="light"]
   ============================================================ */

/* ── Variables ────────────────────────────────────────────── */
:root {
  --bg:         #0f1117;
  --surface:    #1a1d27;
  --surface2:   #22263a;
  --surface3:   #2a2f47;
  --border:     #2e3350;
  --border2:    #3d4266;
  --accent:     #6c63ff;
  --accent-h:   #8b84ff;
  --accent2:    #00c9a7;
  --text:       #e2e8f0;
  --text-m:     #94a3b8;
  --text-s:     #64748b;
  --red:        #ef4444;
  --green:      #22c55e;
  --yellow:     #eab308;
  --shadow:     0 4px 24px rgba(0,0,0,.4);
  --shadow-sm:  0 2px 8px rgba(0,0,0,.3);
  --radius:     12px;
  --radius-sm:  8px;
  --transition: .2s ease;
}

[data-theme="light"] {
  --bg:         #f0f2f5;
  --surface:    #ffffff;
  --surface2:   #f8fafc;
  --surface3:   #f1f5f9;
  --border:     #e2e8f0;
  --border2:    #cbd5e1;
  --text:       #1e293b;
  --text-m:     #64748b;
  --text-s:     #94a3b8;
  --shadow:     0 4px 24px rgba(0,0,0,.08);
  --shadow-sm:  0 2px 8px rgba(0,0,0,.06);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  min-height: 100vh;
  transition: background var(--transition), color var(--transition);
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-h); }

/* ── Layout ───────────────────────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.container-narrow { max-width: 920px; margin: 0 auto; padding: 0 1.5rem; }

/* ── Top Nav ──────────────────────────────────────────────── */
.topnav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.topnav-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  height: 58px;
  padding: 0 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-brand {
  display: flex; align-items: center; gap: .6rem;
  font-weight: 700; font-size: 1rem; color: var(--text);
  text-decoration: none;
}
.nav-brand:hover { color: var(--accent); }
.nav-brand-icon { font-size: 1.3rem; }

.nav-breadcrumb {
  display: flex; align-items: center; gap: .4rem;
  color: var(--text-m); font-size: .9rem;
  flex: 1;
}
.nav-breadcrumb .sep { color: var(--text-s); }
.nav-breadcrumb .current { color: var(--text); font-weight: 500; }

.nav-actions { display: flex; align-items: center; gap: .5rem; margin-left: auto; }

/* ── Theme Toggle ─────────────────────────────────────────── */
.theme-toggle {
  width: 38px; height: 38px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text-m);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  transition: all var(--transition);
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  padding: 3.5rem 1.5rem 2.5rem;
  text-align: center;
}
.hero h1 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--text);
  margin-bottom: .5rem;
}
.hero p {
  color: var(--text-m);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto;
}

/* ── Families Grid ────────────────────────────────────────── */
.families-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  padding: 0 1.5rem 3rem;
  max-width: 1200px;
  margin: 0 auto;
}

.family-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}
.family-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.family-card-header {
  display: flex; align-items: center; gap: .75rem;
  margin-bottom: 1rem;
}
.family-card-icon {
  width: 44px; height: 44px;
  background: var(--surface2);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  border: 1px solid var(--border);
}
.family-card-name { font-weight: 600; font-size: 1rem; }
.family-card-count { font-size: .8rem; color: var(--text-m); margin-top: .1rem; }

.family-tools-list { list-style: none; }
.family-tool-item {
  display: flex; align-items: center; gap: .6rem;
  padding: .45rem 0;
  border-top: 1px solid var(--border);
  font-size: .88rem;
  color: var(--text-m);
  transition: color var(--transition);
}
.family-tool-item:hover { color: var(--text); }
.family-tool-item .tool-icon { width: 1.4rem; text-align: center; font-size: 1rem; }
.family-tool-item .tool-label { flex: 1; }
.family-tool-item .badge-new {
  font-size: .68rem; font-weight: 600;
  padding: .1rem .45rem; border-radius: 4px;
  background: #6c63ff22; color: #a78bfa;
  border: 1px solid #6c63ff44;
}
.family-tool-item .badge-wip {
  font-size: .68rem; font-weight: 600;
  padding: .1rem .45rem; border-radius: 4px;
  background: #eab30822; color: #fde047;
  border: 1px solid #eab30844;
}
.family-tool-link {
  text-decoration: none;
  color: inherit;
  display: flex; align-items: center; gap: .6rem;
  width: 100%;
}
.family-tool-link:hover .tool-label { color: var(--accent); }

/* ── Tool Page Layout ─────────────────────────────────────── */
.tool-page {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  padding: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
  min-height: calc(100vh - 58px);
}
@media (max-width: 860px) {
  .tool-page { grid-template-columns: 1fr; }
}

.tool-form-panel,
.tool-output-panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ── Panel Header ─────────────────────────────────────────── */
.panel-title {
  font-weight: 600;
  font-size: .95rem;
  color: var(--text-m);
  text-transform: uppercase;
  letter-spacing: .06em;
  font-size: .78rem;
  margin-bottom: .25rem;
  display: flex; align-items: center; gap: .5rem;
}
.panel-title::before {
  content: '';
  display: inline-block;
  width: 3px; height: 12px;
  background: var(--accent);
  border-radius: 2px;
}

/* ── Form card ────────────────────────────────────────────── */
.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.form-card h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: .3rem;
}
.form-card .tool-desc {
  color: var(--text-m);
  font-size: .9rem;
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

/* ── Form Fields ──────────────────────────────────────────── */
.form-group { margin-bottom: 1.1rem; }

.form-group label {
  display: block;
  font-size: .88rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: .4rem;
}
.form-group .field-hint {
  display: block;
  font-size: .78rem;
  color: var(--text-s);
  margin-bottom: .4rem;
  margin-top: -.25rem;
}
.form-group .required-star { color: var(--red); margin-left: .2rem; }

.form-group input[type="text"],
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: .6rem .85rem;
  font-size: .9rem;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input[type="text"]:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(108,99,255,.15);
}

.form-group textarea {
  height: 100px;
  resize: vertical;
  line-height: 1.55;
}
.form-group textarea.tall { height: 150px; }
.form-group textarea.short { height: 70px; }

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2394a3b8' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .85rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

/* Multiselect */
.form-group select[multiple] {
  height: auto;
  min-height: 100px;
  padding: .4rem;
  background-image: none;
}
.form-group select[multiple] option {
  padding: .3rem .6rem;
  border-radius: 4px;
  margin-bottom: 1px;
}
.form-group select[multiple] option:checked {
  background: var(--accent);
  color: white;
}
.form-group .multiselect-hint {
  font-size: .75rem;
  color: var(--text-s);
  margin-top: .3rem;
}

/* Radio group */
.radio-group {
  display: flex; flex-wrap: wrap; gap: .5rem;
}
.radio-option { display: none; }
.radio-label {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .4rem .85rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface2);
  font-size: .88rem;
  cursor: pointer;
  transition: all var(--transition);
}
.radio-option:checked + .radio-label {
  border-color: var(--accent);
  background: rgba(108,99,255,.12);
  color: var(--accent-h);
}
.radio-label:hover { border-color: var(--border2); }

/* Checkbox */
.checkbox-label {
  display: flex; align-items: center; gap: .6rem;
  cursor: pointer; font-size: .9rem;
}
.checkbox-label input { width: 16px; height: 16px; accent-color: var(--accent); cursor: pointer; }

/* ── Chips (textarea_with_chips) ──────────────────────────── */
.chips-container {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-bottom: .5rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: .3rem .7rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text-m);
  font-size: .8rem;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.chip:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(108,99,255,.08);
}
.chip.active {
  border-color: var(--accent);
  background: rgba(108,99,255,.15);
  color: var(--accent-h);
  font-weight: 500;
}

/* ── Checkbox Group (checkbox_group) ─────────────────────── */
.checkbox-group-container {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-bottom: .5rem;
}

.checkbox-group-item {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .3rem .7rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text-m);
  font-size: .8rem;
  cursor: pointer;
  transition: all var(--transition);
}
.checkbox-group-item:hover {
  border-color: var(--border2);
}
.checkbox-group-item:has(input:checked) {
  border-color: var(--accent);
  background: rgba(108,99,255,.15);
  color: var(--accent-h);
}
.checkbox-group-item input[type="checkbox"] {
  width: 14px;
  height: 14px;
  accent-color: var(--accent);
  cursor: pointer;
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .6rem 1.25rem;
  border-radius: var(--radius-sm);
  border: none;
  font-size: .9rem;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: var(--accent);
  color: white;
}
.btn-primary:hover { background: var(--accent-h); color: white; transform: translateY(-1px); }
.btn-secondary {
  background: var(--surface2);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.btn-ghost {
  background: transparent;
  color: var(--text-m);
  border: 1px solid transparent;
}
.btn-ghost:hover { color: var(--text); border-color: var(--border); }

.btn-full { width: 100%; justify-content: center; padding: .75rem; font-size: .95rem; }

.form-actions {
  display: flex; gap: .75rem; align-items: center;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

/* ── Output Panel ─────────────────────────────────────────── */
.output-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  min-height: 200px;
  flex: 1;
}

.output-card-header {
  display: flex; align-items: center; gap: .75rem;
  padding: .9rem 1.25rem;
  border-bottom: 1px solid var(--border);
}
.output-card-title {
  flex: 1;
  font-weight: 600;
  font-size: .9rem;
}
.output-actions { display: flex; gap: .4rem; }

.output-body {
  flex: 1;
  padding: 1.25rem;
}

.output-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-height: 180px;
  color: var(--text-s);
  text-align: center;
  gap: .5rem;
}
.output-empty-icon { font-size: 2.5rem; opacity: .4; }

.output-prompt {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.1rem 1.25rem;
  font-family: 'Consolas', 'Fira Code', monospace;
  font-size: .85rem;
  line-height: 1.7;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 500px;
  overflow-y: auto;
}

/* ── Tips card ────────────────────────────────────────────── */
.tips-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.tips-card h4 {
  font-size: .85rem;
  font-weight: 600;
  color: var(--text-m);
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: .85rem;
}
.tip {
  display: flex; gap: .6rem;
  font-size: .85rem;
  color: var(--text-m);
  padding: .35rem 0;
  border-top: 1px solid var(--border);
  line-height: 1.5;
}
.tip-icon { flex-shrink: 0; margin-top: .05rem; }

/* ── Toast ────────────────────────────────────────────────── */
#toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  background: var(--green);
  color: white;
  padding: .65rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-weight: 500;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(8px);
  transition: all .25s ease;
  pointer-events: none;
  z-index: 999;
}
#toast.show { opacity: 1; transform: translateY(0); }

/* ── Tool Header Banner ───────────────────────────────────── */
.tool-banner {
  background: linear-gradient(135deg, var(--surface) 0%, var(--surface2) 100%);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem;
}
.tool-banner-inner {
  display: flex; align-items: center; gap: 1rem;
  max-width: 1200px;
  margin: 0 auto;
}
.tool-banner-icon {
  width: 52px; height: 52px;
  background: var(--surface3);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.tool-banner-title { font-size: 1.3rem; font-weight: 700; }
.tool-banner-desc { font-size: .9rem; color: var(--text-m); margin-top: .2rem; }
.tool-banner-family {
  margin-left: auto;
  font-size: .8rem;
  color: var(--text-s);
  display: flex; align-items: center; gap: .4rem;
  flex-shrink: 0;
}

/* ── WIP State ────────────────────────────────────────────── */
.wip-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-m);
}
.wip-state .wip-icon { font-size: 3rem; margin-bottom: 1rem; }
.wip-state h2 { margin-bottom: .5rem; }

/* ── Scrollbar ────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-s); }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 600px) {
  .families-grid { grid-template-columns: 1fr; padding: 0 1rem 2rem; }
  .hero { padding: 2rem 1rem 1.5rem; }
  .tool-page { padding: 1rem; }
}