:root {
  --ink: #ECE8E1;
  --muted: rgba(236, 232, 225, 0.62);
  --panel: #0F172A;
  --cell: #162033;
  --accent: #FF4655;
  --line: rgba(236, 232, 225, 0.14);
  --ok: #7CFFB2;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at 12% 0%, rgba(255, 70, 85, 0.18), transparent 36%),
    radial-gradient(circle at 88% 100%, rgba(236, 232, 225, 0.08), transparent 30%),
    #070b14;
  color: var(--ink);
  font-family: "Chakra Petch", "Segoe UI", sans-serif;
}

a { color: inherit; }

.wrap {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 48px;
}

.topbar,
.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mark {
  width: 10px;
  height: 38px;
  background: var(--accent);
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 11px;
  letter-spacing: 0.22em;
}

.title {
  margin: 0;
  font-size: clamp(28px, 5vw, 40px);
  letter-spacing: 0.14em;
  line-height: 0.95;
}

.lede {
  color: var(--muted);
  max-width: 36rem;
  line-height: 1.45;
}

.panel {
  background: rgba(15, 23, 42, 0.92);
  border: 1px solid var(--line);
  padding: 18px;
  margin-top: 16px;
}

.panel h2 {
  margin: 0 0 10px;
  font-size: 18px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

label {
  display: block;
  margin: 12px 0 6px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

input[type="text"],
input[type="number"],
input[type="range"] {
  width: 100%;
  background: var(--cell);
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 10px 12px;
  font: inherit;
}

input[type="range"] {
  padding: 0;
  accent-color: var(--accent);
}

.url-row,
.cta-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.btn {
  appearance: none;
  border: 0;
  background: var(--accent);
  color: #0b101c;
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 10px 14px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.switch {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
  cursor: pointer;
}

.switch input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.switch-ui {
  width: 42px;
  height: 22px;
  background: #243049;
  border: 1px solid var(--line);
  position: relative;
}

.switch-ui::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: var(--ink);
  transition: transform 0.18s ease, background 0.18s ease;
}

.switch input:checked + .switch-ui {
  background: rgba(255, 70, 85, 0.35);
  border-color: var(--accent);
}

.switch input:checked + .switch-ui::after {
  transform: translateX(20px);
  background: var(--accent);
}

.flash {
  min-height: 1.2em;
  color: var(--ok);
  font-size: 13px;
}

.error {
  color: var(--accent);
}

.who {
  color: var(--muted);
  font-size: 14px;
}

.preview {
  display: grid;
  gap: 6px;
  width: 100%;
}

.preview-cell {
  min-height: 52px;
  background: var(--cell);
  border: 1px solid var(--line);
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-align: left;
  color: inherit;
  font: inherit;
}

.preview-cell.is-done {
  border-color: var(--accent);
  background: #241018;
}

.preview-cell input {
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 2px 0;
}

.preview-cell.is-done input {
  text-decoration: line-through;
  text-decoration-color: var(--accent);
}

.preview-cell .meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}

.preview-cell .meta {
  color: var(--muted);
  font-size: 10px;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.preview-cell .strike-btn {
  flex: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 2px 6px;
  cursor: pointer;
}

.preview-cell.is-done .strike-btn {
  border-color: var(--accent);
  color: var(--accent);
}

.board-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  margin-top: 10px;
  overflow: hidden;
  border: 1px solid var(--line);
  background:
    linear-gradient(rgba(255, 70, 85, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 70, 85, 0.06) 1px, transparent 1px),
    #05070d;
  background-size: 24px 24px, 24px 24px, auto;
  touch-action: none;
}

.board-stage-item {
  position: absolute;
  left: 29%;
  top: 16%;
  width: 42%;
  transform-origin: top left;
  user-select: none;
}

.board-stage-handle {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 22px;
  margin-bottom: 4px;
  background: rgba(255, 70, 85, 0.18);
  border: 1px solid rgba(255, 70, 85, 0.55);
  color: var(--accent);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: grab;
}

.board-stage-handle:active,
.board-stage-item.is-dragging .board-stage-handle {
  cursor: grabbing;
}

.board-resize {
  position: absolute;
  right: -6px;
  bottom: -6px;
  width: 16px;
  height: 16px;
  border: 2px solid var(--accent);
  background: #0b101c;
  cursor: nwse-resize;
  padding: 0;
}

.board-stage-item .preview-cell {
  min-height: 44px;
}

.cells-edit {
  display: none;
}

.hero {
  min-height: calc(100vh - 56px);
  display: grid;
  align-content: center;
  gap: 18px;
}

.hero .title {
  font-size: clamp(48px, 10vw, 96px);
}

@media (max-width: 860px) {
  .grid-2,
  .topbar {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: stretch;
  }
}