:root {
  --bg: #f7f7f7;
  --card: #ffffff;
  --ink: #1a1a1a;
  --muted: #555;
  --border: #e5e5e5;
  --accent: #0f6feb;
  /* used sparingly for focus/primary controls */
  --danger: #b00020;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(0, 0, 0, .06), 0 8px 24px rgba(0, 0, 0, .06);
  --maxw: 860px;
  --gap: 16px;
  --gap-lg: 24px;
  --row-h: 52px;
  --focus-ring: 0 0 0 3px color-mix(in lab, var(--accent) 30%, transparent);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --card: #121417;
    --ink: #e7e7e7;
    --muted: #a0a0a0;
    --border: #20242b;
    --shadow: none;
    --accent: #3b82f6;
  }
}

html,
body {
  height: 100%;
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Full-viewport slide frame (prevents margin collapse; uses padding/gap) */
.shell {
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: var(--gap);
  padding: clamp(12px, 2dvh, 24px);
  box-sizing: border-box;
}

header.site {
  max-width: var(--maxw);
  width: 100%;
  margin-inline: auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

header.site h1 {
  font-size: clamp(18px, 2.4vw, 22px);
  margin: 0 0 4px 0;
  font-weight: 600;
  color: var(--ink);
}

header.site p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

main.panel {
  max-width: var(--maxw);
  width: 100%;
  margin-inline: auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  min-height: 0;
  /* allow child to scroll */
  box-shadow: var(--shadow);
}

.panel-body {
  padding: clamp(12px, 2.2dvh, 24px);
  display: flex;
  flex-direction: column;
  gap: var(--gap-lg);
  overflow: auto;
  /* internal scroll if needed, never hides footer */
}

.panel-title {
  margin: 0;
  font-size: clamp(18px, 2.6vw, 24px);
  font-weight: 600;
  color: var(--ink);
}

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

.group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.row {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: var(--row-h);
  flex-wrap: wrap;
}

.fields {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

@media (min-width: 720px) {
  .fields.cols-2 {
    grid-template-columns: 1fr 1fr;
  }
}

label {
  font-size: 0.92rem;
  color: var(--muted);
}

input[type="text"],
input[type="url"],
textarea,
input[type="search"] {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--ink);
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
  min-height: 44px;
  outline: none;
}

textarea {
  min-height: 140px;
  resize: vertical;
}

input:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}

.help {
  color: var(--muted);
  font-size: 0.9rem;
}

.error {
  color: var(--danger);
  font-size: 0.9rem;
}

.options {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 1rem;
  line-height: 1;
  user-select: none;
}

.chip input[type="radio"] {
  margin: 0;
}

.actionbar {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 12px;
  border-top: 1px solid var(--border);
  background: color-mix(in lab, var(--card) 90%, var(--bg));
  border-radius: 0 0 var(--radius) var(--radius);
}

.btns {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

button {
  font: inherit;
  border-radius: 10px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--ink);
  min-height: 44px;
  cursor: pointer;
}

button.primary {
  background: black;
  border-color: rgb(0, 0, 0);
  color: white;
}

button:disabled {
  opacity: .55;
  cursor: not-allowed;
}

a.buttonlike {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
  color: var(--ink);
  background: var(--card);
  min-height: 44px;
}

/* Tech stack gallery */
.stack-toolbar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(148px, 1fr));
  gap: 12px;
}

.stack-item {
  display: flex;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  min-height: 64px;
  background: transparent;
}

.stack-item img {
  width: 28px;
  height: 28px;
  object-fit: contain;
  flex: 0 0 auto;
  border-radius: 6px;
  background: #fff0;
  border: 1px solid var(--border);
}

.stack-item[data-broken="1"] img {
  display: none;
}

.stack-item .name {
  font-size: 0.92rem;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.stack-item input[type="checkbox"] {
  margin-left: auto;
  width: 18px;
  height: 18px;
}

.custom-add {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr 2fr auto;
  align-items: center;
}

@media (max-width:680px) {
  .custom-add {
    grid-template-columns: 1fr;
  }

  .custom-add button {
    justify-self: start;
  }
}

/* Previews */
.preview-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.preview-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 48px;
  min-height: 24px;
  padding: 2px 4px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  font-size: 12px;
}

.preview-badge img {
  max-height: 24px;
  object-fit: contain;
}

.preview-badge[data-broken="1"]::after {
  content: attr(data-alt);
  padding: 0 6px;
  color: var(--muted);
}

/* README output */
.readme-output {
  white-space: pre-wrap;
  background: color-mix(in lab, var(--card) 90%, var(--bg));
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 14px;
  min-height: 200px;
  font-size: 0.95rem;
  overflow: auto;
}

/* Subtle slide transition */
.fade-in {
  animation: fadeIn .22s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

/* Visually-hidden (but accessible) */
.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}