/* ---- ROI CALCULATOR ---- */
/* Owns: /roi page styles. Does NOT own: pipeline board, landing page. */

.roi-app {
  min-height: 100vh;
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', -apple-system, sans-serif;
}

/* ---- TOPBAR ---- */
.roi-topbar {
  background: var(--bg-raised);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  padding: 0 28px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.topbar-back {
  font-size: 0.85rem;
  color: var(--fg-muted);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s;
}

.topbar-back:hover { color: var(--accent); }

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}

.topbar-brand-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gradient);
  flex-shrink: 0;
}

/* ---- PAGE LAYOUT ---- */
.roi-page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 52px 28px 80px;
}

.roi-header {
  text-align: center;
  margin-bottom: 52px;
}

.roi-tag {
  font-family: 'Outfit', sans-serif;
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.roi-header h1 {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin-bottom: 16px;
}

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.roi-header-lede {
  color: var(--fg-muted);
  font-size: 1rem;
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ---- MAIN GRID ---- */
.roi-grid {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 24px;
  align-items: start;
}

/* ---- INPUTS PANEL ---- */
.roi-inputs {
  background: var(--bg-raised);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 36px 32px;
  position: sticky;
  top: 80px;
}

.roi-inputs h2 {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  margin-bottom: 28px;
  color: var(--fg);
}

.input-group {
  margin-bottom: 24px;
}

.input-group label {
  display: block;
  font-size: 0.8rem;
  color: var(--fg-muted);
  font-weight: 500;
  margin-bottom: 8px;
  font-family: 'Outfit', sans-serif;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.input-group label span.hint {
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  color: var(--fg-dim);
  font-size: 0.78rem;
}

.input-with-unit {
  position: relative;
  display: flex;
  align-items: center;
}

.input-with-unit input {
  width: 100%;
  background: var(--bg);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  color: var(--fg);
  font-family: 'Outfit', sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  padding: 12px 48px 12px 16px;
  outline: none;
  transition: border-color 0.2s;
  box-sizing: border-box;
}

.input-with-unit input:focus {
  border-color: rgba(79,209,197,0.4);
}

.input-unit {
  position: absolute;
  right: 16px;
  font-family: 'Outfit', sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--fg-dim);
  pointer-events: none;
}

/* Range slider */
.range-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.range-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

input[type="range"] {
  flex: 1;
  -webkit-appearance: none;
  height: 4px;
  border-radius: 2px;
  background: rgba(255,255,255,0.1);
  outline: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 2px rgba(79,209,197,0.3);
  cursor: pointer;
  transition: box-shadow 0.2s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  box-shadow: 0 0 0 4px rgba(79,209,197,0.2);
}

.range-val {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent);
  min-width: 40px;
  text-align: right;
}

.range-bounds {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  color: var(--fg-dim);
  font-family: 'Outfit', sans-serif;
  padding: 0 2px;
}

/* ---- RESULTS PANEL ---- */
.roi-results {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Primary KPI cards */
.kpi-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s;
}

.kpi-card:hover { border-color: rgba(79,209,197,0.15); }

.kpi-card--primary {
  background: var(--bg-card);
  border-color: rgba(79,209,197,0.15);
  grid-column: span 2;
  padding: 32px 28px;
}

.kpi-card--primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-subtle);
  opacity: 0.4;
  pointer-events: none;
}

.kpi-label {
  font-family: 'Outfit', sans-serif;
  font-weight: 500;
  font-size: 0.78rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--fg-muted);
  position: relative;
  z-index: 1;
}

.kpi-value {
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  font-size: 2.2rem;
  letter-spacing: -0.03em;
  line-height: 1;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  z-index: 1;
}

.kpi-card--primary .kpi-value {
  font-size: 3rem;
}

.kpi-sub {
  font-size: 0.82rem;
  color: var(--fg-dim);
  position: relative;
  z-index: 1;
  line-height: 1.4;
}

/* ---- BREAKDOWN CARD ---- */
.breakdown-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius);
  padding: 28px;
}

.breakdown-card h3 {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
  color: var(--fg-muted);
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 1.5px;
}

.breakdown-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 0.9rem;
}

.breakdown-row:last-child { border-bottom: none; }

.breakdown-label {
  color: var(--fg-muted);
  display: flex;
  align-items: center;
  gap: 10px;
}

.breakdown-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.breakdown-dot--teal { background: var(--accent); }
.breakdown-dot--violet { background: var(--accent-secondary); }
.breakdown-dot--pink { background: #f472b6; }

.breakdown-val {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  color: var(--fg);
}

/* ---- ASSUMPTIONS CARD ---- */
.assumptions-card {
  background: var(--bg-raised);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius);
  padding: 24px 28px;
}

.assumptions-card summary {
  list-style: none;
  cursor: pointer;
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--fg-muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

.assumptions-card summary::after {
  content: '↓';
  font-size: 0.78rem;
  color: var(--fg-dim);
  transition: transform 0.2s;
}

.assumptions-card[open] summary::after {
  transform: rotate(180deg);
}

.assumptions-card summary::-webkit-details-marker { display: none; }

.assumptions-list {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.assumption-item {
  font-size: 0.84rem;
  color: var(--fg-dim);
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  display: flex;
  gap: 10px;
  line-height: 1.5;
}

.assumption-item:last-child { border-bottom: none; }

.assumption-bullet {
  color: var(--accent);
  flex-shrink: 0;
  font-weight: 700;
}

/* ---- CTA CARD ---- */
.cta-card {
  background: var(--bg-card);
  border: 1px solid rgba(167,139,250,0.15);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(167,139,250,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.cta-card p {
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.cta-card span {
  color: var(--fg-muted);
  font-size: 0.85rem;
  font-weight: 400;
}

.btn-cta {
  display: inline-block;
  background: var(--gradient);
  color: #fff;
  border-radius: var(--radius-sm);
  padding: 11px 28px;
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  letter-spacing: -0.01em;
  transition: opacity 0.2s;
  position: relative;
  z-index: 1;
  cursor: pointer;
  border: none;
}

.btn-cta:hover { opacity: 0.88; }

/* ---- CLINICAL BASIS BADGE ---- */
.evidence-basis {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.evidence-badge {
  font-family: 'Outfit', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 20px;
  background: rgba(79,209,197,0.1);
  color: var(--accent);
  white-space: nowrap;
}

.evidence-badge--violet {
  background: rgba(167,139,250,0.1);
  color: var(--accent-secondary);
}

.evidence-badge--pink {
  background: rgba(244,114,182,0.1);
  color: #f472b6;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .roi-grid { grid-template-columns: 1fr; }
  .roi-inputs { position: static; }
  .kpi-row { grid-template-columns: 1fr; }
  .kpi-card--primary { grid-column: span 1; }
  .kpi-card--primary .kpi-value { font-size: 2.4rem; }
}

@media (max-width: 600px) {
  .roi-page { padding: 32px 16px 60px; }
  .roi-topbar { padding: 0 16px; }
  .roi-inputs { padding: 24px 20px; }
  .breakdown-card { padding: 20px; }
  .kpi-card { padding: 20px; }
}