/* House of Quality – QFD Demo */

:root {
  --primary:       #1e3a5f;
  --primary-light: #2c6fbb;
  --accent:        #0ea5e9;
  --surface:       #ffffff;
  --surface-alt:   #f0f4f8;
  --text:          #1e293b;
  --text-muted:    #64748b;
  --border:        #cbd5e1;
  --radius:        8px;
  --shadow:        0 2px 8px rgba(0,0,0,.08);

  /* Relationship colours */
  --rel-strong-bg: #1e3a5f;
  --rel-strong-fg: #ffffff;
  --rel-medium-bg: #60a5fa;
  --rel-medium-fg: #ffffff;
  --rel-weak-bg:   #bfdbfe;
  --rel-weak-fg:   #1e3a5f;
  --rel-none-bg:   #f8fafc;

  /* Roof colours */
  --roof-pos:  #22c55e;
  --roof-neg:  #ef4444;
  --roof-none: #e2e8f0;

  /* Priority tiers */
  --top-color: #16a34a;
  --mid-color: #eab308;
  --low-color: #94a3b8;
}

/* ── Reset & base ────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: linear-gradient(160deg, #e0ecf8 0%, #d1dce8 100%);
  min-height: 100vh;
  color: var(--text);
}

.app-container { max-width: 1100px; margin: 0 auto; padding: 24px 16px; }

/* ── Header ──────────────────────────────────────────────── */
header { text-align: center; margin-bottom: 28px; }
header h1 { font-size: 1.8rem; color: var(--primary); letter-spacing: -0.5px; }
.subtitle { color: var(--text-muted); font-size: .95rem; margin-top: 4px; }

main { display: flex; flex-direction: column; gap: 24px; }

/* ── Edit panels (side by side) ──────────────────────────── */
.edit-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 700px) { .edit-panels { grid-template-columns: 1fr; } }

.input-section {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}
.input-section h2 { font-size: 1rem; color: var(--primary); margin-bottom: 12px; }

.items-list { max-height: 220px; overflow-y: auto; margin-bottom: 12px; }

.item {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 8px; background: var(--surface-alt);
  border-radius: 4px; margin-bottom: 6px; font-size: .88rem;
}
.item input[type="text"] {
  flex: 1; padding: 5px 8px;
  border: 1px solid var(--border); border-radius: 4px; font-size: .88rem;
}
.imp-label { display: flex; align-items: center; gap: 4px; font-size: .8rem; color: var(--text-muted); white-space: nowrap; }
.imp-label select { padding: 2px 4px; border: 1px solid var(--border); border-radius: 3px; font-size: .82rem; }

.remove-btn {
  cursor: pointer; color: #ef4444; font-size: 1.1rem; font-weight: bold;
  padding: 0 4px; line-height: 1;
}
.remove-btn:hover { color: #dc2626; }

.add-item { display: flex; gap: 8px; }
.add-item input {
  flex: 1; padding: 7px 10px;
  border: 1px solid var(--border); border-radius: 4px; font-size: .88rem;
}
.primary-btn {
  padding: 7px 14px; background: var(--primary); color: white;
  border: none; border-radius: 4px; cursor: pointer; font-size: .88rem; white-space: nowrap;
}
.primary-btn:hover { background: var(--primary-light); }

/* ── House of Quality section ────────────────────────────── */
.hoq-section {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  overflow-x: auto;
}
.hoq-section h2 { font-size: 1.1rem; color: var(--primary); margin-bottom: 4px; }
.hoq-hint { font-size: .78rem; color: var(--text-muted); margin-bottom: 16px; }

.hoq-wrapper { display: flex; flex-direction: column; align-items: flex-start; }

/* ── SVG Roof ────────────────────────────────────────────── */
.roof-svg { display: block; margin-bottom: -2px; }

.roof-cell {
  fill: var(--roof-none); stroke: #fff; stroke-width: 1.5;
  cursor: pointer; transition: fill .15s;
}
.roof-cell.roof-pos  { fill: var(--roof-pos); fill-opacity: .35; }
.roof-cell.roof-neg  { fill: var(--roof-neg); fill-opacity: .35; }
.roof-cell.roof-none { fill: var(--roof-none); }
.roof-cell:hover { fill-opacity: .6; }

.roof-outline {
  fill: none; stroke: var(--primary); stroke-width: 2;
}

.roof-label { font-size: 13px; font-weight: 700; fill: var(--text); pointer-events: none; }

/* ── HoQ Table ───────────────────────────────────────────── */
.hoq-body-scroll { overflow-x: auto; width: 100%; }

.hoq-table {
  border-collapse: collapse; font-size: .82rem;
  margin: 0; white-space: nowrap;
}

.hoq-table th, .hoq-table td {
  border: 1px solid var(--border); padding: 6px 8px; text-align: center;
  vertical-align: middle;
}

/* Corner labels */
.corner-label {
  background: var(--primary); color: white;
  font-weight: 600; font-size: .75rem; text-align: center;
  min-width: 140px; max-width: 180px;
}
.imp-col-header {
  background: var(--primary); color: white;
  font-weight: 600; font-size: .75rem; width: 42px;
}

/* Direction row */
.direction-row th { background: var(--surface-alt); }
.dir-cell { font-size: 1rem; padding: 4px 8px; }

/* HOW header */
.how-header-row th { background: var(--primary); color: white; height: 110px; }
.how-name { position: relative; min-width: 64px; width: 64px; }
.rotated-text {
  writing-mode: vertical-rl; transform: rotate(180deg);
  font-size: .78rem; font-weight: 600; line-height: 1.2;
  max-height: 100px; overflow: hidden; text-overflow: ellipsis;
}

/* WHAT names (left column) */
.what-name {
  text-align: left; font-weight: 600; padding-left: 10px;
  background: var(--surface-alt); min-width: 140px; max-width: 180px;
  white-space: normal; word-break: break-word;
}

/* Importance weight column */
.imp-cell {
  font-weight: 700; font-size: .95rem; background: var(--surface-alt);
  color: var(--primary);
}

/* ── Relationship cells ──────────────────────────────────── */
.rel-cell {
  cursor: pointer; font-size: 1.15rem; min-width: 64px; width: 64px;
  transition: background .15s, transform .1s;
  user-select: none;
}
.rel-cell:hover { transform: scale(1.08); z-index: 5; position: relative; }

.rel-strong { background: var(--rel-strong-bg); color: var(--rel-strong-fg); font-size: 1.3rem; }
.rel-medium { background: var(--rel-medium-bg); color: var(--rel-medium-fg); font-size: 1.2rem; }
.rel-weak   { background: var(--rel-weak-bg);   color: var(--rel-weak-fg); }
.rel-none   { background: var(--rel-none-bg);   color: var(--text-muted); }

/* ── Competitive assessment ──────────────────────────────── */
.comp-header {
  background: var(--primary); color: white; font-weight: 600;
  font-size: .75rem; width: 60px; min-width: 60px;
}
.comp-cell { padding: 4px; width: 60px; min-width: 60px; }

.comp-bar {
  height: 18px; border-radius: 3px; font-size: .7rem;
  display: flex; align-items: center; justify-content: flex-end;
  padding-right: 4px; color: white; font-weight: 600;
  transition: width .3s;
}
.us-bar   { background: var(--primary-light); }
.them-bar { background: #f97316; }

/* ── Footer rows ─────────────────────────────────────────── */
.footer-label {
  text-align: right; font-weight: 700; font-size: .78rem;
  padding-right: 12px; background: var(--surface-alt);
  color: var(--primary);
}

.score-cell {
  font-weight: 800; font-size: 1rem; color: var(--primary);
  background: #eff6ff;
}

.bar-cell {
  height: 60px; position: relative; vertical-align: bottom;
  background: var(--surface-alt); padding: 2px 4px 4px;
}
.importance-bar {
  width: 70%; margin: 0 auto; background: var(--primary-light);
  border-radius: 3px 3px 0 0; min-height: 4px;
  transition: height .3s;
}
.bar-pct {
  display: block; font-size: .65rem; font-weight: 700;
  color: var(--text-muted); margin-top: 2px; text-align: center;
}

.target-cell {
  font-size: .75rem; font-weight: 600; color: var(--primary);
  background: #fefce8;
}

/* ── Results / Priority section ──────────────────────────── */
.results-section {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}
.results-section h2 { font-size: 1.1rem; color: var(--primary); margin-bottom: 14px; }

.priority-row {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 6px; margin-bottom: 8px;
  background: var(--surface-alt);
}
.priority-rank {
  font-weight: 800; font-size: .85rem; min-width: 32px; text-align: center;
  padding: 3px 0; border-radius: 4px; color: white;
}
.priority-row.top .priority-rank { background: var(--top-color); }
.priority-row.mid .priority-rank { background: var(--mid-color); }
.priority-row.low .priority-rank { background: var(--low-color); }

.priority-name { font-weight: 600; min-width: 160px; font-size: .88rem; }
.priority-dir { font-size: .75rem; color: var(--text-muted); }

.priority-bar-bg {
  flex: 1; height: 14px; background: #e2e8f0; border-radius: 7px; overflow: hidden;
}
.priority-bar-fill {
  height: 100%; border-radius: 7px; transition: width .4s;
}
.top-fill { background: var(--top-color); }
.mid-fill { background: var(--mid-color); }
.low-fill { background: var(--low-color); }

.priority-score {
  font-weight: 800; font-size: .95rem; color: var(--primary); min-width: 36px; text-align: right;
}

/* ── Hidden utility ──────────────────────────────────────── */
.hidden { display: none !important; }