:root {
  --bg: #0b1220;
  --panel: #111a2b;
  --panel-2: #17233a;
  --line: #284161;
  --text: #eaf2ff;
  --muted: #98aac8;
  --accent: #60a5fa;
  --accent-2: #22c55e;
  --danger: #fb7185;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, Segoe UI, Arial, sans-serif;
  background: linear-gradient(180deg, #08101c 0%, #0e1728 100%);
  color: var(--text);
}

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

.page-shell {
  max-width: 1500px;
  margin: 0 auto;
  padding: 24px;
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: stretch;
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
}

.hero h1 {
  margin: 0;
  font-size: 40px;
}

.hero-copy {
  max-width: 860px;
  color: var(--muted);
  line-height: 1.6;
}

.hero-card,
.panel {
  background: rgba(17, 26, 43, 0.92);
  border: 1px solid rgba(96, 165, 250, 0.18);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.hero-card {
  min-width: 280px;
  padding: 18px;
  display: grid;
  gap: 12px;
}

.mini-stat {
  padding: 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.mini-stat span {
  display: block;
  color: var(--muted);
  margin-bottom: 6px;
  font-size: 13px;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.75fr) minmax(320px, 0.75fr);
  gap: 24px;
  margin-bottom: 24px;
}

.sidebar {
  display: grid;
  gap: 24px;
  align-content: start;
}

.panel {
  padding: 20px;
}

.panel h2 {
  margin: 0 0 16px;
  font-size: 20px;
}

.panel-title-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-bottom: 16px;
}

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

.button-row.compact {
  justify-content: flex-end;
}

button {
  border: 0;
  border-radius: 12px;
  padding: 12px 16px;
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  color: white;
  cursor: pointer;
  font-weight: 700;
}

button.secondary {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

button:hover {
  transform: translateY(-1px);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}

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

label span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

input,
textarea,
select {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(8, 16, 28, 0.6);
  color: var(--text);
  padding: 12px 14px;
}

textarea {
  resize: vertical;
  line-height: 1.5;
}

.span-2 {
  grid-column: span 2;
}

.stacked-field {
  margin-bottom: 16px;
}

.status-box {
  border-radius: 12px;
  padding: 14px;
  background: rgba(96, 165, 250, 0.09);
  border: 1px solid rgba(96, 165, 250, 0.2);
  color: #d9ebff;
}

.board-iframe {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  border-radius: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.board-meta {
  margin-top: 12px;
  color: var(--muted);
  line-height: 1.6;
}

.info-panel {
  display: grid;
  gap: 14px;
}

.info-block {
  padding: 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.info-block strong {
  display: block;
  margin-bottom: 8px;
}

.info-block p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.output-panel {
  margin-bottom: 24px;
}

.script-output {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  border-radius: 14px;
  padding: 18px;
  background: rgba(8, 16, 28, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.08);
  line-height: 1.55;
  min-height: 180px;
}

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

.validation-output {
  display: grid;
  gap: 10px;
}

.validation-item {
  border-radius: 12px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.validation-item.ok {
  border-color: rgba(34, 197, 94, 0.35);
  background: rgba(34, 197, 94, 0.08);
}

.validation-item.warn {
  border-color: rgba(251, 113, 133, 0.35);
  background: rgba(251, 113, 133, 0.08);
}

.visual-flow {
  display: grid;
  gap: 18px;
}

.flow-common,
.flow-branches {
  display: grid;
  gap: 16px;
}

.flow-common {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.flow-branches {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.flow-column {
  border-radius: 16px;
  padding: 16px;
  background: rgba(8, 16, 28, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.branch-head {
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.branch-head strong,
.flow-card strong {
  display: block;
}

.branch-head span,
.flow-card span {
  color: var(--muted);
}

.flow-card {
  border-radius: 14px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.flow-card + .flow-card {
  margin-top: 12px;
}

.flow-line {
  color: var(--muted);
  margin-top: 8px;
  font-size: 14px;
}

@media (max-width: 1100px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .hero {
    flex-direction: column;
  }
}

@media (max-width: 800px) {
  .form-grid {
    grid-template-columns: 1fr 1fr;
  }

  .span-2 {
    grid-column: span 2;
  }
}

@media (max-width: 560px) {
  .page-shell {
    padding: 16px;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .span-2 {
    grid-column: span 1;
  }

  .panel-title-row {
    flex-direction: column;
    align-items: stretch;
  }
}