/* ============================================================
   Linux Distro Builder Wizard — styles.css
   ============================================================ */

:root {
  --bg:           #f0f2f5;
  --surface:      #ffffff;
  --border:       #d0d5dd;
  --border-focus: #4a6fa5;
  --text:         #1a1f2e;
  --text-muted:   #6b7280;
  --primary:      #4a6fa5;
  --primary-dark: #3a5a8a;
  --primary-light:#e8eef7;
  --danger:       #dc2626;
  --warn-bg:      #fff7ed;
  --warn-border:  #f97316;
  --warn-text:    #7c2d12;
  --panel-bg:     #f8f9fa;
  --radius:       10px;
  --shadow:       0 1px 4px rgba(0,0,0,.10), 0 4px 12px rgba(0,0,0,.06);
  --transition:   0.18s ease;

  /* Track badge colours */
  --track-legacy:      #9ca3af;
  --track-oldstable:   #6b7280;
  --track-stable:      #16a34a;
  --track-lts:         #16a34a;
  --track-current:     #2563eb;
  --track-rolling:     #d97706;
  --track-beta:        #ea580c;
  --track-eol:         #9ca3af;

  /* Badge colours */
  --badge-neutral-bg:  #e5e7eb;
  --badge-neutral-fg:  #374151;
  --badge-green-bg:    #dcfce7;
  --badge-green-fg:    #166534;
  --badge-blue-bg:     #dbeafe;
  --badge-blue-fg:     #1e40af;
  --badge-yellow-bg:   #fef3c7;
  --badge-yellow-fg:   #92400e;
  --badge-orange-bg:   #ffedd5;
  --badge-orange-fg:   #9a3412;
  --badge-purple-bg:   #ede9fe;
  --badge-purple-fg:   #5b21b6;
  --badge-cyan-bg:     #e0f2fe;
  --badge-cyan-fg:     #075985;
  --badge-gray-bg:     #f3f4f6;
  --badge-gray-fg:     #374151;
}

:root[data-theme="dark"] {
  --bg:           #0f1117;
  --surface:      #1a1d27;
  --border:       #2e3148;
  --border-focus: #7ba4d9;
  --text:         #e2e8f0;
  --text-muted:   #8892a4;
  --primary:      #6b8ec7;
  --primary-dark: #7ba4d9;
  --primary-light:#1b2640;
  --danger:       #f87171;
  --warn-bg:      #1f1200;
  --warn-border:  #f97316;
  --warn-text:    #fed7aa;
  --panel-bg:     #13151f;
  --shadow:       0 1px 4px rgba(0,0,0,.4), 0 4px 12px rgba(0,0,0,.3);

  /* Badge colours — muted for dark backgrounds */
  --badge-neutral-bg:  #374151;
  --badge-neutral-fg:  #d1d5db;
  --badge-green-bg:    #14532d;
  --badge-green-fg:    #86efac;
  --badge-blue-bg:     #1e3a5f;
  --badge-blue-fg:     #93c5fd;
  --badge-yellow-bg:   #451a03;
  --badge-yellow-fg:   #fde68a;
  --badge-orange-bg:   #431407;
  --badge-orange-fg:   #fdba74;
  --badge-purple-bg:   #2e1065;
  --badge-purple-fg:   #c4b5fd;
  --badge-cyan-bg:     #0c3450;
  --badge-cyan-fg:     #7dd3fc;
  --badge-gray-bg:     #374151;
  --badge-gray-fg:     #d1d5db;
}

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

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

/* ── Header ──────────────────────────────────────────────── */
header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 4px rgba(0,0,0,.08);
}

.header-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  padding: 0.85rem 0;
  gap: 1rem;
}

.home-link {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  flex: 1;
  transition: color var(--transition);
}

.home-link:hover {
  color: var(--primary);
  text-decoration: underline;
}

header h1 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  white-space: nowrap;
}

.distro-name-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 0 1 260px;
  margin-left: auto;
}

.distro-name-wrap label {
  font-size: 0.8rem;
  color: var(--text-muted);
  white-space: nowrap;
}

#distro-name {
  flex: 1;
  padding: 0.4rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.9rem;
  color: var(--text);
  background: var(--bg);
  outline: none;
  transition: border-color var(--transition);
}

#distro-name:focus {
  border-color: var(--border-focus);
  background: var(--surface);
}

/* ── Progress bar ─────────────────────────────────────────── */
#progress-bar {
  max-width: 900px;
  margin: 0 auto;
  padding: 0.6rem 0 0.7rem;
  display: flex;
  align-items: center;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

#progress-bar::-webkit-scrollbar { display: none; }

.progress-step {
  display: flex;
  align-items: center;
  flex: 1;
  min-width: 0;
}

.progress-step:last-child .step-line { display: none; }

.step-dot-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  cursor: pointer;
  white-space: nowrap;
}

.step-dot {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--border);
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), color var(--transition);
  user-select: none;
}

.step-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-weight: 500;
  text-align: center;
  transition: color var(--transition);
}

.step-line {
  flex: 1;
  height: 2px;
  background: var(--border);
  margin: 0 4px;
  transition: background var(--transition);
  margin-bottom: 14px; /* align with dot center */
}

.progress-step.completed .step-dot  { background: var(--primary); color: #fff; }
.progress-step.completed .step-line { background: var(--primary); }
.progress-step.completed .step-label{ color: var(--primary); }
.progress-step.active   .step-dot   { background: var(--primary); color: #fff; box-shadow: 0 0 0 3px var(--primary-light); }
.progress-step.active   .step-label { color: var(--primary); font-weight: 700; }

/* ── Main content ─────────────────────────────────────────── */
main {
  max-width: 900px;
  margin: 2rem auto;
  padding: 0 1.5rem 4rem;
}

#step-container {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
  min-height: 360px;
}

.step-heading {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.step-sub {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

/* ── Base release filter pills ────────────────────────────── */
.base-filter-bar {
  display: flex;
  gap: 0.45rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.filter-pill {
  border: 1.5px solid var(--border);
  border-radius: 999px;
  padding: 0.28rem 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  background: var(--surface);
  color: var(--text-muted);
  transition: border-color var(--transition), background var(--transition), color var(--transition);
  line-height: 1.4;
}

.filter-pill:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}

.filter-pill.active {
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
}

/* ── Warning banner ───────────────────────────────────────── */
.warn-banner {
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  border-radius: 8px;
  padding: 0.6rem 1rem;
  font-size: 0.84rem;
  color: var(--warn-text);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* ── Info banner ──────────────────────────────────────────── */
.info-banner {
  background: var(--primary-light);
  border: 1px solid var(--primary);
  border-radius: 8px;
  padding: 0.75rem 1.1rem;
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--text);
  margin-top: 1rem;
}

.info-banner p {
  margin: 0 0 0.4rem;
}

.info-banner p:last-child {
  margin-bottom: 0;
}

.info-banner code {
  background: var(--bg);
  padding: 0.1em 0.3em;
  border-radius: 3px;
  font-size: 0.9em;
  font-family: 'Cascadia Code', 'Fira Mono', monospace;
}

/* ── Family group header ──────────────────────────────────── */
.family-group { margin-bottom: 1.5rem; }

.family-header {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.3rem;
  margin-bottom: 0.75rem;
}

/* ── Selection tiles (radio / checkbox style) ─────────────── */
.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.65rem;
}

.tiles.single-col {
  grid-template-columns: 1fr;
}

.tile {
  border: 2px solid var(--border);
  border-radius: 8px;
  padding: 0.8rem 1rem;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
  user-select: none;
  position: relative;
}

.tile:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}

.tile.selected {
  border-color: var(--primary);
  background: var(--primary-light);
  box-shadow: 0 0 0 1px var(--primary);
}

.tile.eol {
  opacity: 0.65;
}

.tile-title {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.tile-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  margin-top: 0.25rem;
}

.tile-notes {
  font-size: 0.74rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
  font-style: italic;
}

/* ── Badges ───────────────────────────────────────────────── */
.badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: .04em;
  white-space: nowrap;
}

.badge-legacy, .badge-eol     { background: var(--badge-neutral-bg); color: var(--badge-neutral-fg); }
.badge-oldstable               { background: var(--badge-neutral-bg); color: var(--badge-neutral-fg); }
.badge-stable, .badge-lts,
.badge-lts-current, .badge-lts-legacy
                               { background: var(--badge-green-bg);   color: var(--badge-green-fg); }
.badge-current                 { background: var(--badge-blue-bg);    color: var(--badge-blue-fg); }
.badge-rolling                 { background: var(--badge-yellow-bg);  color: var(--badge-yellow-fg); }
.badge-beta, .badge-unstable   { background: var(--badge-orange-bg);  color: var(--badge-orange-fg); }

.badge-img  { background: var(--badge-purple-bg); color: var(--badge-purple-fg); }
.badge-iso  { background: var(--badge-cyan-bg);   color: var(--badge-cyan-fg); }
.badge-arch { background: var(--badge-gray-bg);   color: var(--badge-gray-fg); }

/* ── Toggle row (services/packages checkbox list) ─────────── */
.toggle-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.toggle-section-header {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.25rem;
  margin: 0.75rem 0 0.4rem;
}

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 7px;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
  gap: 0.75rem;
}

.toggle-row:hover { background: var(--bg); border-color: var(--primary); }

.toggle-row.on {
  background: var(--primary-light);
  border-color: var(--primary);
}

.toggle-label {
  flex: 1;
  min-width: 0;
}

.toggle-label strong {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
}

.toggle-label span {
  font-size: 0.76rem;
  color: var(--text-muted);
}

.toggle-switch {
  width: 38px;
  height: 21px;
  background: var(--border);
  border-radius: 999px;
  position: relative;
  flex-shrink: 0;
  transition: background var(--transition);
}

.toggle-switch::after {
  content: '';
  position: absolute;
  width: 15px;
  height: 15px;
  background: #fff;
  border-radius: 50%;
  top: 3px;
  left: 3px;
  transition: left var(--transition);
  box-shadow: 0 1px 3px rgba(0,0,0,.2);
}

.toggle-row.on .toggle-switch              { background: var(--primary); }
.toggle-row.on .toggle-switch::after       { left: 20px; }

/* ── Config.txt panel ─────────────────────────────────────── */
.config-panel {
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.2rem;
  margin-top: 1rem;
}

.config-panel h4 {
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text);
}

.config-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
}

.config-row label { flex: 1; }

.config-row input[type="range"] {
  width: 120px;
}

.config-row input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
}

.config-val {
  width: 45px;
  text-align: right;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ── Repo custom input ────────────────────────────────────── */
.repo-extra {
  margin-top: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--bg);
  border-radius: 7px;
  border: 1px solid var(--border);
}

.repo-extra label {
  font-size: 0.82rem;
  font-weight: 600;
  display: block;
  margin-bottom: 0.35rem;
}

.repo-extra input[type="text"],
.repo-extra textarea {
  width: 100%;
  padding: 0.4rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.85rem;
  font-family: monospace;
  color: var(--text);
  background: var(--surface);
  outline: none;
  transition: border-color var(--transition);
  resize: vertical;
}

.repo-extra input:focus,
.repo-extra textarea:focus {
  border-color: var(--border-focus);
}

/* ── Summary table ─────────────────────────────────────────── */
.summary-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.summary-table tr {
  border-bottom: 1px solid var(--border);
}

.summary-table td {
  padding: 0.6rem 0.5rem;
  vertical-align: top;
}

.summary-table td:first-child {
  font-weight: 600;
  color: var(--text-muted);
  width: 140px;
  white-space: nowrap;
}

.summary-table .edit-link {
  color: var(--primary);
  cursor: pointer;
  font-size: 0.78rem;
  text-decoration: underline;
  float: right;
  margin-left: 0.5rem;
}

.summary-table .edit-link:hover { color: var(--primary-dark); }

/* ── Script preview ─────────────────────────────────────────── */
.script-preview-wrap {
  margin-top: 1.5rem;
}

/* ── Curl / one-liner run command panel ─────────────────────── */
.curl-cmd-wrap {
  margin-top: 1.25rem;
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.85rem 1.1rem;
}

.curl-cmd-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1rem;
  margin-bottom: 0.6rem;
}

.curl-cmd-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
}

.curl-cmd-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.curl-cmd-hint code {
  font-family: 'Cascadia Code', 'Fira Mono', monospace;
  font-size: 0.9em;
}

.curl-cmd-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.curl-cmd-field {
  flex: 1;
  min-width: 0;
  padding: 0.45rem 0.75rem;
  font-family: 'Cascadia Code', 'Fira Mono', 'Consolas', monospace;
  font-size: 0.78rem;
  background: #1e2030;
  color: #c0caf5;
  border: 1px solid var(--border);
  border-radius: 7px;
  outline: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: text;
}

.curl-cmd-field:focus {
  border-color: var(--primary);
}

.btn-copy-cmd {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 7px;
  padding: 0.45rem 1rem;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition);
  flex-shrink: 0;
}

.btn-copy-cmd:hover {
  background: var(--primary-dark);
}

.preview-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 0.5rem 1rem;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: all var(--transition);
}

.preview-toggle:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.script-pre {
  background: #1e2030;
  color: #c0caf5;
  font-family: 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
  font-size: 0.78rem;
  line-height: 1.55;
  padding: 1.25rem;
  border-radius: 8px;
  overflow: auto;
  max-height: 480px;
  margin-top: 0.5rem;
  white-space: pre;
}

/* ── Navigation buttons ────────────────────────────────────── */
.nav-buttons {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.25rem;
  gap: 0.75rem;
}

button {
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.6rem 1.4rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

#btn-prev {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}

#btn-prev:hover:not(:disabled) {
  border-color: var(--primary);
  color: var(--primary);
}

#btn-next {
  background: var(--primary);
  color: #fff;
  border: 1px solid transparent;
}

#btn-next:hover:not(:disabled) {
  background: var(--primary-dark);
}

button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

#btn-cancel {
  background: var(--surface);
  color: var(--danger);
  border: 1px solid var(--danger);
}

#btn-cancel:hover {
  background: var(--danger);
  color: #fff;
}

.btn-download {
  background: #16a34a;
  color: #fff;
  font-size: 1rem;
  padding: 0.75rem 2rem;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-download:hover {
  background: #15803d;
}

/* ── Package preview line (under DE tile) ─────────────────── */
.pkg-preview {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-family: monospace;
  margin-top: 0.3rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── DE screenshot preview ────────────────────────────────── */
.de-screenshot-wrap {
  margin-top: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel-bg);
}

.de-screenshot-img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 360px;
  object-fit: cover;
  object-position: top;
  transition: opacity var(--transition);
}

.de-screenshot-caption {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
  padding: 0.4rem 1rem;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

/* ── Installer description ────────────────────────────────── */
.installer-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

/* ── Theme toggle ─────────────────────────────────────────── */
.theme-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.35rem 0.65rem;
  font-size: 1rem;
  cursor: pointer;
  color: var(--text-muted);
  line-height: 1;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
  flex-shrink: 0;
}

.theme-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 640px) {
  .header-inner { flex-wrap: wrap; }
  .distro-name-wrap { flex: 1 1 100%; }
  main { margin: 1rem auto; padding: 0 0.75rem 3rem; }
  #step-container { padding: 1.25rem; }
  .tiles { grid-template-columns: 1fr 1fr; }
  .step-label { display: none; }
}

@media (max-width: 400px) {
  .tiles { grid-template-columns: 1fr; }
}