:root {
  color-scheme: dark;

  --bg0: #050814;
  --bg1: #0b1020;
  --surface0: rgba(13, 20, 38, 0.72);
  --surface1: rgba(13, 20, 38, 0.9);
  --border0: rgba(159, 176, 209, 0.14);
  --border1: rgba(159, 176, 209, 0.22);

  --text: #e7eefc;
  --muted: #9fb0d1;
  --muted2: rgba(159, 176, 209, 0.7);

  --accent: #2d5bff;
  --accent2: #22c55e;
  --danger: #fb7185;

  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --shadow-sm: 0 10px 26px rgba(0, 0, 0, 0.35);

  --radius: 14px;
  --radius-sm: 12px;

  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto,
    Helvetica, Arial, Apple Color Emoji, Segoe UI Emoji;
}

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

html,
body {
  height: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background: radial-gradient(
        900px 620px at 10% -10%,
        rgba(45, 91, 255, 0.28),
        transparent 55%
      ),
    radial-gradient(
        900px 620px at 90% 0%,
        rgba(34, 197, 94, 0.14),
        transparent 55%
      ),
    linear-gradient(180deg, var(--bg0), var(--bg1));
}

::selection {
  background: rgba(45, 91, 255, 0.35);
}

a {
  color: inherit;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.95em;
  padding: 0.15em 0.35em;
  border-radius: 8px;
  background: rgba(7, 10, 18, 0.55);
  border: 1px solid var(--border0);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: rgba(9, 14, 30, 0.7);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border0);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo {
  font-weight: 750;
  letter-spacing: 0.2px;
  text-decoration: none;
}

.logo:hover {
  text-decoration: none;
}

.muted {
  color: var(--muted);
}

.root {
  padding: 34px 18px 76px;
  max-width: 980px;
  margin: 0 auto;
}

.error {
  padding: 14px 16px;
  border: 1px solid rgba(251, 113, 133, 0.35);
  border-radius: var(--radius);
  background: rgba(42, 15, 22, 0.85);
  color: #ffd0d7;
  box-shadow: var(--shadow-sm);
}

.rj-col,
.rj-row {
  display: flex;
}

.rj-col {
  flex-direction: column;
}

.rj-row {
  flex-direction: row;
  flex-wrap: wrap;
}

.rj-card {
  padding: 18px;
  border: 1px solid var(--border0);
  border-radius: calc(var(--radius) + 2px);
  background: linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.05),
      rgba(255, 255, 255, 0.02)
    ),
    var(--surface0);
  box-shadow: var(--shadow);
}

.rj-text {
  line-height: 1.6;
}

.rj-title {
  font-size: 22px;
  font-weight: 780;
  letter-spacing: 0.2px;
}

.rj-title-sm {
  font-size: 14px;
  font-weight: 750;
  letter-spacing: 0.2px;
}

.rj-label {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.rj-field-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.25px;
  color: var(--muted2);
  text-transform: uppercase;
}

.rj-input,
.rj-textarea {
  width: 100%;
  padding: 12px 13px;
  border-radius: var(--radius);
  border: 1px solid var(--border1);
  background: rgba(7, 10, 18, 0.55);
  color: var(--text);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  transition: border-color 120ms ease, box-shadow 120ms ease,
    transform 120ms ease;
}

select.rj-input {
  cursor: pointer;
}

.rj-textarea {
  min-height: 110px;
  resize: vertical;
}

.rj-textarea--xl {
  min-height: 320px;
}

.rj-textarea--mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
  line-height: 1.55;
}

.rj-input::placeholder,
.rj-textarea::placeholder {
  color: rgba(159, 176, 209, 0.55);
}

.rj-input:focus-visible,
.rj-textarea:focus-visible {
  outline: none;
  border-color: rgba(45, 91, 255, 0.8);
  box-shadow: 0 0 0 4px rgba(45, 91, 255, 0.18);
}

.rj-button {
  appearance: none;
  border: 1px solid var(--border1);
  background: linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.06),
      rgba(255, 255, 255, 0.01)
    ),
    rgba(17, 28, 51, 0.9);
  color: var(--text);
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.35);
  transition: transform 120ms ease, background 120ms ease,
    border-color 120ms ease, box-shadow 120ms ease;
  user-select: none;
}

.rj-button:hover {
  transform: translateY(-1px);
  border-color: rgba(45, 91, 255, 0.45);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.42);
}

.rj-button:active {
  transform: translateY(0px);
}

.rj-button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(45, 91, 255, 0.18), 0 14px 34px rgba(0, 0, 0, 0.42);
}

.rj-button--primary {
  background: linear-gradient(
      180deg,
      rgba(45, 91, 255, 0.95),
      rgba(45, 91, 255, 0.62)
    ),
    rgba(17, 28, 51, 0.7);
  border-color: rgba(45, 91, 255, 0.55);
}

.rj-link {
  color: var(--muted);
  text-decoration: none;
}

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

.builder-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.builder-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.builder-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.builder-actions .rj-status {
  flex: 1 1 auto;
}

.builder-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.builder-preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.rj-status {
  min-height: 18px;
  color: var(--muted);
}

.rj-status.is-success {
  color: rgba(34, 197, 94, 0.95);
}

.rj-status.is-error {
  color: rgba(251, 113, 133, 0.95);
}

.rj-preview {
  min-height: 120px;
}

.hero {
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr;
  align-items: start;
  margin-top: 6px;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 6px 2px;
}

.hero-kicker {
  color: var(--muted2);
  font-weight: 750;
  letter-spacing: 0.24px;
  text-transform: uppercase;
  font-size: 12px;
}

.hero-title {
  margin: 0;
  font-size: 38px;
  line-height: 1.08;
  letter-spacing: -0.4px;
}

.hero-subtitle {
  margin: 0;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.65;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.hero-note {
  font-size: 13px;
}

.hero-demo {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.hero-demo-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.rj-code {
  margin: 0;
  padding: 12px 13px;
  border-radius: var(--radius);
  border: 1px solid var(--border0);
  background: rgba(7, 10, 18, 0.55);
  color: rgba(231, 238, 252, 0.92);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
  line-height: 1.55;
  overflow: auto;
  max-height: 280px;
}

.hero-demo-preview {
  border-radius: var(--radius);
  border: 1px solid var(--border0);
  padding: 12px;
  background: rgba(7, 10, 18, 0.35);
}

.feature-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
  margin-top: 18px;
}

.feature {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

@media (min-width: 980px) {
  .builder-grid {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: start;
  }

  .hero {
    grid-template-columns: 1.08fr 0.92fr;
    gap: 20px;
  }

  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .rj-button,
  .rj-input,
  .rj-textarea {
    transition: none;
  }
}