:root {
  --bg: #f3efe6;
  --bg-accent: #e8dcc7;
  --surface: rgba(255, 252, 246, 0.84);
  --surface-strong: #fffaf2;
  --border: rgba(71, 54, 30, 0.12);
  --text: #2a2118;
  --muted: #6e6254;
  --accent: #0b6e4f;
  --accent-soft: #d9f4ea;
  --shadow: 0 20px 60px rgba(72, 52, 25, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(230, 195, 128, 0.38), transparent 30%),
    radial-gradient(circle at top right, rgba(14, 128, 95, 0.18), transparent 24%),
    linear-gradient(160deg, var(--bg) 0%, #f7f2eb 48%, #efe5d6 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255, 255, 255, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.16) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.4), transparent);
}

.page-shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 3rem 0 4rem;
}

.hero,
.panel {
  background: var(--surface);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.hero {
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -60px -80px auto;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(11, 110, 79, 0.24), transparent 68%);
}

.eyebrow,
.panel-kicker,
.status-pill,
th,
.metric-label,
.detail-label,
.upload-subtitle {
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow,
.panel-kicker {
  margin: 0 0 0.5rem;
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--accent);
}

h1,
h2 {
  font-family: "Fraunces", serif;
  margin: 0;
}

h1 {
  max-width: 12ch;
  font-size: clamp(2.7rem, 5vw, 4.8rem);
  line-height: 0.96;
}

h2 {
  font-size: 1.7rem;
}

.hero-copy {
  max-width: 58ch;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
  margin: 1rem 0 0;
}

.hero-actions {
  margin-top: 2rem;
}

#datasetInput {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.upload-card {
  display: inline-flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: min(100%, 420px);
  padding: 1.2rem 1.25rem;
  border-radius: 18px;
  border: 1px dashed rgba(11, 110, 79, 0.34);
  background: rgba(255, 255, 255, 0.6);
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.upload-card:hover {
  transform: translateY(-2px);
  border-color: rgba(11, 110, 79, 0.7);
  background: rgba(255, 255, 255, 0.9);
}

.upload-card.is-dragover {
  transform: translateY(-2px) scale(1.01);
  border-color: rgba(11, 110, 79, 0.95);
  background: rgba(217, 244, 234, 0.95);
}

.upload-title {
  font-weight: 700;
}

.upload-subtitle {
  font-size: 0.73rem;
  color: var(--muted);
}

.summary-panel {
  margin-top: 1.5rem;
}

.panel {
  padding: 1.5rem;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 2.3rem;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 800;
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.metric-card,
.detail-card {
  background: var(--surface-strong);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 1rem;
}

.metric-label,
.detail-label {
  display: block;
  font-size: 0.7rem;
  color: var(--muted);
  margin-bottom: 0.6rem;
}

.metric-value,
.detail-value {
  font-size: clamp(1.35rem, 2vw, 1.8rem);
}

.message-box {
  margin: 1rem 0 0;
  padding: 1rem 1.1rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.56);
  color: var(--muted);
  line-height: 1.6;
}

.content-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.chart-panel {
  margin-top: 1.5rem;
}

.chart-wrap {
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(244, 238, 229, 0.88));
}

#distributionChart {
  width: 100%;
  height: auto;
  display: block;
}

.table-wrap {
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  padding: 0.9rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

th {
  font-size: 0.72rem;
  color: var(--muted);
}

tbody tr:hover {
  background: rgba(11, 110, 79, 0.05);
}

.placeholder-cell {
  text-align: center;
  color: var(--muted);
  padding: 2rem 1rem;
}

#columnSelect {
  min-width: 220px;
  padding: 0.8rem 0.9rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface-strong);
  color: var(--text);
  font: inherit;
}

.detail-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.empty-state,
.empty-detail {
  opacity: 0.88;
}

@media (max-width: 960px) {
  .overview-grid,
  .content-grid,
  .detail-stats {
    grid-template-columns: 1fr;
  }

  .panel-header {
    align-items: flex-start;
    flex-direction: column;
  }

  #columnSelect {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 1rem, 100%);
    padding: 1rem 0 2rem;
  }

  .hero,
  .panel {
    border-radius: 22px;
    padding: 1.1rem;
  }

  h1 {
    font-size: 2.55rem;
  }
}

.completion-panel { display:flex; align-items:center; justify-content:space-between; gap:2rem; }
.completion-actions { min-width:min(100%, 260px); text-align:center; }
.complete-button { width:100%; border:0; border-radius:14px; padding:.95rem 1.25rem; background:#0b6e4f; color:#fff; font:700 1rem Manrope,sans-serif; cursor:pointer; }
.complete-button:hover:not(:disabled) { background:#08583f; }
.complete-button:disabled { cursor:not-allowed; opacity:.45; }
.completion-status { min-height:1.4em; margin:.75rem 0 0; color:var(--muted); font-weight:600; }
@media (max-width:640px) { .completion-panel { align-items:stretch; flex-direction:column; } .completion-actions { width:100%; } }


/* 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}}