:root {
  --bg: #f4efe7;
  --panel: rgba(255, 251, 245, 0.82);
  --panel-strong: #fffdf9;
  --text: #1d1d1b;
  --muted: #635b4d;
  --accent: #c85c36;
  --accent-dark: #8f3616;
  --line: rgba(29, 29, 27, 0.1);
  --shadow: 0 18px 50px rgba(95, 61, 38, 0.14);
  --success: #285943;
  --warning: #ad6d00;
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(200, 92, 54, 0.18), transparent 32%),
    radial-gradient(circle at bottom right, rgba(40, 89, 67, 0.14), transparent 28%),
    linear-gradient(160deg, #efe6da 0%, #f7f2eb 45%, #f2ece3 100%);
}

button,
input,
select {
  font: inherit;
}

.app-shell {
  width: min(1400px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 40px;
}

.hero {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  align-items: end;
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-dark);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.82rem;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.4rem, 4vw, 4.5rem);
  line-height: 0.95;
  max-width: 12ch;
}

.hero-copy {
  max-width: 60ch;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.6;
}

.hero-card,
.panel,
.form-card,
.stat-card {
  backdrop-filter: blur(14px);
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.55);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
}

.hero-card {
  padding: 24px;
}

.hero-card-label,
.node-kind,
.stat-label,
.mono {
  font-family: "IBM Plex Mono", monospace;
}

.hero-card ul {
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}

.workspace {
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr) 340px;
  gap: 20px;
}

.panel {
  padding: 20px;
}

.panel-heading,
.section-title-row,
.node-card-top,
.button-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.panel-heading h2,
.form-card h3,
.node-card h4 {
  margin: 0;
}

.panel-heading p,
.form-card p,
.node-detail,
.results-block,
.panel-heading div p {
  color: var(--muted);
}

.form-card {
  padding: 18px;
  margin-top: 16px;
  background: var(--panel-strong);
}

label {
  display: block;
  margin-top: 14px;
  font-size: 0.95rem;
  color: var(--muted);
}

input,
select {
  width: 100%;
  margin-top: 8px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
}

button,
.file-button {
  border: none;
  border-radius: 999px;
  padding: 11px 16px;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

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

.primary-button {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 24px rgba(200, 92, 54, 0.28);
}

.secondary-button,
.file-button {
  background: rgba(200, 92, 54, 0.1);
  color: var(--accent-dark);
}

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

.hidden {
  display: none;
}

.tree-canvas {
  display: grid;
  gap: 14px;
  align-content: start;
  min-height: 720px;
}

.node-card {
  padding: 16px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(247, 242, 235, 0.92));
  border-radius: 18px;
  border: 1px solid rgba(29, 29, 27, 0.06);
}

.node-kind {
  margin: 0 0 6px;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-dark);
}

.node-title {
  font-size: 1.1rem;
}

.delete-node-button {
  background: rgba(29, 29, 27, 0.06);
  color: var(--text);
  padding-inline: 12px;
}

.node-detail {
  margin: 12px 0;
  line-height: 1.55;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  border-radius: 999px;
  padding: 7px 10px;
  font-size: 0.8rem;
  background: rgba(40, 89, 67, 0.1);
  color: var(--success);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 18px 0;
}

.stat-card {
  padding: 18px;
  background: var(--panel-strong);
}

.stat-label {
  margin: 0 0 8px;
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.stat-value {
  margin: 0;
  font-size: 1.8rem;
  font-weight: 700;
}

.results-block {
  min-height: 84px;
  line-height: 1.6;
}

.empty-state {
  display: flex;
  align-items: center;
}

.cut-set {
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(173, 109, 0, 0.08);
  color: var(--text);
  margin-bottom: 10px;
}

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

  .tree-canvas {
    min-height: 0;
  }
}

@media (max-width: 760px) {
  .app-shell {
    width: min(100% - 20px, 100%);
    padding-top: 16px;
  }

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

  .panel,
  .hero-card {
    padding: 16px;
  }

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


/* Quality In Practice — shared application identity */
:root{
  --qip-mint:#94e8a5;--qip-black:#000;--qip-white:#fff;--qip-gray:#5a5a5a;--qip-line:#d9d9d2;--qip-paper:#f7f7f2;
  --accent:#94e8a5;--primary:#000;--brand:#94e8a5;--ink:#000;--text:#000;--muted:#5a5a5a;--page:#f7f7f2;--bg:#f7f7f2;--panel:#fff;--surface:#fff;--line:#d9d9d2;--border:#d9d9d2;
}
html{background:var(--qip-black)}
body{background:var(--qip-paper);color:var(--qip-black);font-family:Inter,"Avenir Next",Manrope,"Helvetica Neue",Arial,sans-serif;font-weight:400}
h1,h2,h3{letter-spacing:-.035em;font-weight:400}
h1{font-weight:300}
header,.app-header,.site-header,.hero{border-radius:0}
.app-header,.site-header,body>header,.hero{border-bottom:8px solid var(--qip-mint)}
.eyebrow,.kicker,.overline,.section-label{color:#267f39;font-weight:500;letter-spacing:.14em;text-transform:uppercase}
button,.button,.btn,[type="button"],[type="submit"]{border-radius:0;font-weight:500;box-shadow:none}
button:not(.secondary):not(.ghost):not(.delete-control):not(.remove):not(.icon-button),.button.primary,.btn-primary,[type="submit"]{background:var(--qip-black);border-color:var(--qip-black);color:var(--qip-white)}
button:not(.secondary):not(.ghost):not(.delete-control):not(.remove):not(.icon-button):hover,.button.primary:hover,.btn-primary:hover,[type="submit"]:hover{background:var(--qip-mint);border-color:var(--qip-black);color:var(--qip-black)}
button.secondary,.button.secondary,.btn-secondary,.ghost{background:var(--qip-white);border-color:var(--qip-black);color:var(--qip-black)}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--qip-mint);outline-offset:2px}
input,select,textarea{border-radius:0}
.card,.panel,.section-card,.analysis-card,.result-card,.metric-card,.summary-card,.project-panel,.workspace,.worksheet,.worksheet-wrap,.toolbar{border-radius:0;box-shadow:none}
.card,.panel,.section-card,.analysis-card,.result-card,.project-panel,.workspace,.worksheet,.worksheet-wrap{border-color:var(--qip-line)}
.card:first-child,.panel:first-child,.analysis-card:first-child,.result-card:first-child,.project-panel{border-top:5px solid var(--qip-mint)}
table{border-color:var(--qip-line)}
thead th{background:var(--qip-black);color:var(--qip-white);font-weight:500}
tbody th,tbody td{border-color:var(--qip-line)}
.progress,.progress-bar,.meter,.score-bar{border-radius:0}
.progress>*,.progress-bar>*,.meter>*,.score-bar>*{background:var(--qip-mint)}
.badge,.pill,.tag,.chip{border-radius:0}
nav a.active,.tabs button.active,.tab.active{border-color:var(--qip-mint)}
.summary,.metrics,.stats{gap:12px}
.summary>*,.metrics>*,.stats>*{border-radius:0;box-shadow:none;border-top:4px solid var(--qip-mint)}
footer,.site-footer{border-top:1px solid var(--qip-black)}
@media(max-width:700px){.app-header,.site-header,body>header,.hero{border-bottom-width:6px}}