:root {
  color-scheme: dark;
  --bg: #030303;
  --surface: rgba(10, 10, 11, 0.84);
  --line: rgba(255, 255, 255, 0.12);
  --text: #f5f5f0;
  --muted: #a6a6a0;
  --signal: #e9ff70;
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background:
    linear-gradient(115deg, rgba(233, 255, 112, 0.08), transparent 28rem),
    linear-gradient(245deg, rgba(255, 255, 255, 0.06), transparent 34rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body::before {
  position: fixed;
  inset: 0;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, #000, transparent 76%);
}

a { color: inherit; text-decoration: none; }
button, input { font: inherit; }

.app {
  position: relative;
  z-index: 1;
  width: min(1320px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(28px, 5vw, 56px) 0 72px;
}

.hero {
  display: grid;
  justify-items: center;
  padding: 32px 0 42px;
  text-align: center;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 42px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 760;
}

.brand-mark {
  width: 17px;
  height: 17px;
  border: 2px solid var(--text);
  border-radius: 50%;
  box-shadow: inset 6px 0 0 var(--signal);
}

h1, h2 {
  margin: 0;
  font-weight: 880;
  line-height: 0.86;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(56px, 12vw, 138px);
}

h2 {
  font-size: clamp(32px, 5vw, 62px);
}

.lede {
  max-width: 740px;
  margin: 24px auto 0;
  color: var(--muted);
  font-size: clamp(18px, 2.2vw, 26px);
  line-height: 1.22;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(340px, 0.9fr) minmax(440px, 1.1fr);
  gap: 16px;
  align-items: start;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.045), transparent 70%),
    var(--surface);
  padding: clamp(18px, 3vw, 28px);
}

.editor {
  display: grid;
  gap: 16px;
}

.panel-sub {
  display: grid;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.035);
  padding: 14px;
}

.section-title, .preview-heading, .actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.actions {
  justify-content: flex-start;
  flex-wrap: wrap;
}

.kicker, label span {
  margin: 0;
  color: var(--signal);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

label {
  display: grid;
  gap: 8px;
}

input {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.045);
  color: var(--text);
  outline: none;
  padding: 13px 14px;
}

input:focus {
  border-color: rgba(233, 255, 112, 0.55);
}

.button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  padding: 0 18px;
  font-size: 14px;
  font-weight: 860;
  white-space: nowrap;
}

.button-light {
  border: 1px solid #eff2d6;
  background: #f5f7e9;
  color: #11120e;
}

.button-dark {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
}

.column-list, .row-list {
  display: grid;
  gap: 8px;
}

.column-item, .row-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
}

.row-values {
  display: grid;
  grid-template-columns: 1.2fr repeat(var(--value-count), minmax(64px, 1fr)) auto;
  gap: 8px;
}

.icon-button {
  width: 42px;
  min-width: 42px;
  padding: 0;
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #030303;
}

@media (max-width: 980px) {
  .workspace {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .app {
    width: min(100% - 28px, 1320px);
  }

  .section-title, .preview-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .row-values {
    grid-template-columns: 1fr;
  }
}