:root {
  --ink: #18202f;
  --ink-soft: #4a5568;
  --paper: #f7f4ee;
  --panel: #fffdfa;
  --line: #ded7cc;
  --coral: #ff6b5f;
  --mint: #47c9a6;
  --blue: #3178ff;
  --gold: #f1b84b;
  --shadow: 0 24px 70px rgba(24, 32, 47, 0.14);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(49, 120, 255, 0.12), transparent 34%),
    linear-gradient(225deg, rgba(255, 107, 95, 0.14), transparent 38%),
    var(--paper);
  color: var(--ink);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
select,
textarea {
  font: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 22px;
  overflow: auto;
  background: #18202f;
  color: #fffdfa;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.brand-mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--coral), var(--gold));
  color: var(--ink);
  font-weight: 800;
}

.brand p,
.brand strong {
  display: block;
  margin: 0;
  line-height: 1.05;
}

.brand p {
  color: rgba(255, 253, 250, 0.72);
  font-size: 0.83rem;
}

.brand strong {
  font-size: 1.08rem;
}

.type-grid {
  display: grid;
  gap: 9px;
}

.type-card {
  display: grid;
  grid-template-columns: 38px 1fr;
  align-items: center;
  gap: 10px;
  width: 100%;
  min-height: 58px;
  padding: 9px;
  border: 1px solid rgba(255, 253, 250, 0.12);
  border-radius: var(--radius);
  background: rgba(255, 253, 250, 0.055);
  color: #fffdfa;
  text-align: left;
  cursor: pointer;
  transition:
    transform 180ms ease,
    background 180ms ease,
    border-color 180ms ease;
}

.type-card:hover,
.type-card:focus-visible {
  transform: translateX(3px);
  border-color: rgba(71, 201, 166, 0.58);
  background: rgba(255, 253, 250, 0.1);
  outline: none;
}

.type-card.is-active {
  border-color: rgba(255, 107, 95, 0.82);
  background: rgba(255, 107, 95, 0.18);
}

.type-icon {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: var(--radius);
  background: rgba(255, 253, 250, 0.12);
  color: var(--mint);
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 0.82rem;
  font-weight: 800;
}

.type-card strong {
  display: block;
  font-size: 0.92rem;
}

.type-card small {
  display: block;
  margin-top: 2px;
  color: rgba(255, 253, 250, 0.63);
  font-size: 0.75rem;
}

.workspace {
  min-width: 0;
  padding: 26px;
}

.hero-panel {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(260px, 0.7fr);
  align-items: center;
  min-height: 310px;
  margin-bottom: 22px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: clamp(24px, 4vw, 46px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid rgba(49, 120, 255, 0.28);
  border-radius: 999px;
  background: rgba(49, 120, 255, 0.08);
  color: #265dc5;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  max-width: 660px;
  margin-bottom: 14px;
  font-size: clamp(2.1rem, 4.8vw, 4.6rem);
  line-height: 0.96;
  letter-spacing: 0;
}

.hero-copy p {
  max-width: 560px;
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.65;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.hero-stats span {
  min-height: 36px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbf8f2;
  color: var(--ink-soft);
  font-size: 0.86rem;
}

.hero-stats strong {
  color: var(--ink);
}

.hero-art {
  width: 100%;
  height: 100%;
  min-height: 310px;
  object-fit: cover;
  border-left: 1px solid var(--line);
}

.lab-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.85fr) minmax(300px, 1fr);
  gap: 18px;
}

.control-surface,
.preview-surface,
.code-surface {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 253, 250, 0.92);
  box-shadow: 0 12px 38px rgba(24, 32, 47, 0.08);
}

.control-surface,
.preview-surface {
  padding: 18px;
}

.code-surface {
  grid-column: 1 / -1;
  overflow: hidden;
}

.section-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.section-heading span {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: var(--radius);
  background: var(--ink);
  color: #fffdfa;
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 0.78rem;
}

.section-heading h2 {
  margin: 0;
  font-size: 1.05rem;
}

.settings-form {
  display: grid;
  gap: 14px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--ink-soft);
  font-size: 0.83rem;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  min-height: 42px;
  border: 1px solid #cfc7bb;
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  padding: 10px 12px;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--blue);
  outline: 3px solid rgba(49, 120, 255, 0.17);
}

.two-col {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.toggle-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 2px;
}

.switch {
  display: inline-flex;
  grid-template-columns: auto;
  align-items: center;
  gap: 9px;
  min-height: 38px;
  color: var(--ink);
  cursor: pointer;
}

.switch input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.switch span {
  position: relative;
  width: 42px;
  height: 24px;
  border-radius: 999px;
  background: #cfc7bb;
  transition: background 180ms ease;
}

.switch span::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  transition: transform 180ms ease;
}

.switch input:checked + span {
  background: var(--mint);
}

.switch input:checked + span::after {
  transform: translateX(18px);
}

.live-preview {
  display: grid;
  min-height: 260px;
  place-items: center;
  padding: 22px;
  border: 1px dashed rgba(24, 32, 47, 0.23);
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(49, 120, 255, 0.08) 1px, transparent 1px),
    linear-gradient(rgba(255, 107, 95, 0.08) 1px, transparent 1px),
    #fffdfa;
  background-size: 28px 28px;
}

.preview-field {
  width: min(100%, 430px);
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 16px 42px rgba(24, 32, 47, 0.12);
}

.preview-field > label,
.preview-field .field-label {
  color: var(--ink);
  font-size: 0.94rem;
}

.preview-field input[type="color"] {
  height: 54px;
  padding: 5px;
}

.preview-field input[type="checkbox"],
.preview-field input[type="radio"] {
  width: 22px;
  min-height: 22px;
  accent-color: var(--coral);
}

.choice-preview {
  display: flex;
  align-items: center;
  gap: 10px;
}

.value-meter {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  padding: 12px;
  border-radius: var(--radius);
  background: #18202f;
  color: #fffdfa;
}

.value-meter span {
  color: rgba(255, 253, 250, 0.65);
  font-size: 0.84rem;
}

output {
  min-width: 0;
  overflow-wrap: anywhere;
  font-family: "Cascadia Mono", Consolas, monospace;
  color: var(--mint);
}

.code-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px 0;
}

.icon-button {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(24, 32, 47, 0.16);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  cursor: pointer;
}

.icon-button:hover,
.icon-button:focus-visible {
  border-color: var(--blue);
  outline: 3px solid rgba(49, 120, 255, 0.14);
}

pre {
  margin: 0;
  padding: 4px 18px 18px;
  overflow: auto;
}

code {
  display: block;
  min-height: 155px;
  padding: 18px;
  border-radius: var(--radius);
  background: #111827;
  color: #f8f4ea;
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 0.9rem;
  line-height: 1.72;
}

.token-tag {
  color: #77ddff;
}

.copy-feedback {
  min-height: 24px;
  margin: -8px 18px 14px;
  color: #28745d;
  font-size: 0.85rem;
  font-weight: 700;
}

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

  .sidebar {
    position: static;
    height: auto;
  }

  .type-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-panel,
  .lab-layout {
    grid-template-columns: 1fr;
  }

  .hero-art {
    max-height: 280px;
    border-top: 1px solid var(--line);
    border-left: 0;
  }
}

@media (max-width: 620px) {
  .workspace,
  .sidebar {
    padding: 16px;
  }

  .type-grid,
  .two-col {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    padding: 22px;
  }

  h1 {
    font-size: 2.25rem;
  }
}