/* ============================================================
   impact-viz.css — data storytelling layer
   1) Living stat counters (.stats-bar)
   2) Case-study micro-charts (#work .case-card)
   3) ROI visualizer (#roi, injected before the pricing heading)
   Companion to /assets/js/impact-viz.js — tokens only, no raw hex.
   ============================================================ */

/* ── Shared ── */
.iv-sr {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%);
  white-space: nowrap; border: 0;
}

/* Glass value readout (chart tooltips) */
.iv-tip {
  position: absolute; top: 0; left: 0; z-index: 6; pointer-events: none;
  font-family: var(--font-mono); font-size: 11px; line-height: 1.5; color: var(--ink);
  padding: 7px 11px; border-radius: var(--r-sm); white-space: nowrap;
  background: var(--glass-strong); border: 1px solid var(--line-gold);
  backdrop-filter: blur(10px) saturate(140%); -webkit-backdrop-filter: blur(10px) saturate(140%);
  box-shadow: var(--shadow), var(--inner-line);
  opacity: 0; visibility: hidden;
  transition: opacity .16s var(--ease-out), transform .18s var(--ease-out), visibility .16s;
  will-change: transform;
}
.iv-tip.iv-on { opacity: 1; visibility: visible; }
.iv-tip-k { display: block; font-size: 9.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-mute); }
.iv-tip-v { display: block; font-weight: 600; color: var(--gold); font-variant-numeric: tabular-nums; }

/* ============================================================
   1) STATS BAR — living counters + drawn flourishes
   ============================================================ */
.stats-bar .stat-item { position: relative; }
.stats-bar .stat-item::before {
  content: ''; position: absolute; top: 0; left: 8%; right: 8%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-gold), transparent);
  opacity: 0; transition: opacity var(--dur) var(--ease-out);
}
.stats-bar .stat-item:hover::before { opacity: 1; }
.stats-bar .stat-number {
  font-variant-numeric: tabular-nums;
  transition: transform var(--dur) var(--ease-spring), filter var(--dur) var(--ease-out);
}
.stats-bar .stat-item:hover .stat-number {
  transform: translateY(-3px);
  filter: drop-shadow(0 10px 24px var(--glow-gold));
}

/* SVG flourish under each stat (injected; paths use pathLength="1") */
.iv-flourish { display: block; width: 42px; height: 19px; margin-top: 12px; overflow: visible; opacity: .9; transition: opacity var(--dur); }
.stats-bar .stat-item:hover .iv-flourish { opacity: 1; }
.iv-flourish .ivf-stroke {
  fill: none; stroke: var(--gold); stroke-width: 1.6;
  stroke-linecap: round; stroke-linejoin: round;
  stroke-dasharray: 1; stroke-dashoffset: 1;
  transition: stroke-dashoffset .85s var(--ease-out);
}
.iv-flourish .ivf-faint {
  stroke: var(--line-strong); stroke-dasharray: none; stroke-dashoffset: 0;
}
.iv-flourish .ivf-dot {
  fill: var(--gold); opacity: 0; transform: scale(0);
  transform-box: fill-box; transform-origin: center;
  transition: opacity .3s var(--ease-out), transform .5s var(--ease-spring);
}
.iv-flourish.iv-draw .ivf-stroke { stroke-dashoffset: 0; }
.iv-flourish.iv-draw .ivf-dot { opacity: 1; transform: scale(1); }

/* ============================================================
   2) CASE MICRO-CHARTS
   ============================================================ */
.iv-chart { position: relative; margin: -4px 0 24px; border-radius: var(--r-sm); }
.iv-chart:focus-visible { outline: 2px solid var(--gold); outline-offset: 5px; }
.iv-chart svg { display: block; width: 100%; height: auto; overflow: visible; touch-action: pan-y; }

/* SVG typography */
.ivc-lab { font-family: var(--font-mono); font-size: 9.5px; letter-spacing: .09em; text-transform: uppercase; fill: var(--ink-mute); }
.ivc-val { font-family: var(--font-mono); font-size: 11px; font-weight: 600; fill: var(--ink-soft); font-variant-numeric: tabular-nums; }
.ivc-cap { font-family: var(--font-mono); font-size: 9px; letter-spacing: .07em; text-transform: uppercase; fill: var(--ink-faint); }

/* Bars (before / after) */
.ivc-track { fill: color-mix(in srgb, var(--ink) 7%, transparent); }
.ivc-bar { transform-box: fill-box; transform-origin: left center; }
.ivc-bar-before { fill: color-mix(in srgb, var(--red-bright) 60%, transparent); }
.ivc-bar-after { fill: var(--green-soft); }
.ivc-row { transition: opacity .2s var(--ease-out); }
.ivc-row.iv-dim { opacity: .38; }

/* Line / area */
.ivc-axis { stroke: var(--line-strong); stroke-width: 1; }
.ivc-line { fill: none; stroke: var(--gold); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.ivc-area { opacity: 0; transition: opacity .8s var(--ease-out); }
.iv-chart.iv-done .ivc-area { opacity: 1; }
.ivc-g-top { stop-color: var(--gold); stop-opacity: .30; }
.ivc-g-bot { stop-color: var(--gold); stop-opacity: 0; }
.ivc-dot { fill: var(--gold); filter: drop-shadow(0 0 6px var(--glow-gold)); }

/* Crosshair scrub */
.ivc-cross { stroke: var(--line-strong); stroke-dasharray: 3 4; opacity: 0; transition: opacity .18s; }
.ivc-cross-dot { fill: var(--bg-1); stroke: var(--gold); stroke-width: 2; opacity: 0; transition: opacity .18s; }
.iv-chart.iv-scrub .ivc-cross, .iv-chart.iv-scrub .ivc-cross-dot { opacity: 1; }

/* End-value badge (glass pill) */
.ivc-badge {
  position: absolute; display: inline-flex; align-items: baseline; gap: 5px;
  font-family: var(--font-mono); font-size: 11px; font-weight: 600; color: var(--gold);
  padding: 5px 11px; border-radius: var(--r-pill); pointer-events: none;
  background: var(--glass-strong); border: 1px solid var(--line-gold);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  box-shadow: var(--shadow-sm);
  opacity: 0; transform: translateY(7px) scale(.9);
  transition: opacity .45s var(--ease-out), transform .6s var(--ease-spring);
}
.ivc-badge.iv-on { opacity: 1; transform: none; }

/* ============================================================
   3) ROI VISUALIZER
   ============================================================ */
.roi {
  position: relative; margin: 0 0 clamp(48px, 4vw + 24px, 84px);
  padding: clamp(26px, 2vw + 18px, 46px);
  border-radius: var(--r-xl); border: 1px solid var(--line-gold);
  background: linear-gradient(140deg, var(--bg-3), color-mix(in srgb, var(--gold) 4%, var(--bg-2)));
  box-shadow: var(--shadow), var(--inner-line);
  overflow: hidden;
  opacity: 0; transform: translateY(26px);
  transition: opacity .7s var(--ease-out), transform .7s var(--ease-out);
}
.roi.iv-in { opacity: 1; transform: none; }
.roi::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(460px 260px at 85% -12%, color-mix(in srgb, var(--gold) 10%, transparent), transparent 70%);
}
.roi > * { position: relative; }

.roi-eyebrow {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 16px;
  font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 500;
  letter-spacing: var(--tracking-label); text-transform: uppercase; color: var(--gold);
}
.roi-eyebrow::before { content: ''; width: 22px; height: 1px; background: var(--gold); opacity: .7; }

.roi-grid { display: grid; grid-template-columns: 1.12fr .88fr; gap: clamp(28px, 4vw, 60px); align-items: start; }

.roi-title { font-size: var(--text-xl); margin-bottom: 10px; max-width: 22ch; }
.roi-sub { color: var(--ink-mute); font-size: 14.5px; line-height: 1.6; max-width: 52ch; margin-bottom: 30px; }

.roi-field .roi-lab {
  display: flex; justify-content: space-between; align-items: baseline; gap: 16px;
  font-size: 13.5px; font-weight: 500; color: var(--ink-soft); margin-bottom: 10px;
}
.roi-hval { font-family: var(--font-mono); font-size: 14px; font-weight: 600; color: var(--gold); font-variant-numeric: tabular-nums; white-space: nowrap; }

/* Range inputs — gold thumb, glass track, gold progress fill */
.roi-range { -webkit-appearance: none; appearance: none; width: 100%; height: 28px; background: transparent; cursor: pointer; }
.roi-range::-webkit-slider-runnable-track {
  height: 6px; border-radius: var(--r-pill); border: 1px solid var(--line);
  background: linear-gradient(90deg, var(--gold-deep), var(--gold) var(--fill, 27%), var(--bg-4) var(--fill, 27%));
}
.roi-range::-webkit-slider-thumb {
  -webkit-appearance: none; width: 20px; height: 20px; margin-top: -8px; border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--gold-soft));
  border: 2px solid var(--bg-1);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--gold) 16%, transparent), 0 6px 16px -6px var(--glow-gold);
  transition: transform var(--dur-fast) var(--ease-spring), box-shadow var(--dur-fast);
}
.roi-range::-webkit-slider-thumb:hover, .roi-range:active::-webkit-slider-thumb {
  transform: scale(1.15);
  box-shadow: 0 0 0 6px color-mix(in srgb, var(--gold) 22%, transparent), 0 8px 20px -6px var(--glow-gold);
}
.roi-range::-moz-range-track { height: 6px; border-radius: var(--r-pill); border: 1px solid var(--line); background: var(--bg-4); }
.roi-range::-moz-range-progress { height: 6px; border-radius: var(--r-pill); background: linear-gradient(90deg, var(--gold-deep), var(--gold)); }
.roi-range::-moz-range-thumb {
  width: 18px; height: 18px; border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--gold-soft));
  border: 2px solid var(--bg-1);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--gold) 16%, transparent), 0 6px 16px -6px var(--glow-gold);
}
.roi-range:focus-visible { outline: 2px solid var(--gold); outline-offset: 4px; border-radius: var(--r-pill); }

.roi-rate {
  display: flex; flex-wrap: wrap; align-items: center; gap: 6px 14px; margin-top: 14px;
  font-family: var(--font-mono); font-size: 11.5px; color: var(--ink-mute);
}
.roi-rate label { cursor: pointer; }
.roi-rate b { color: var(--gold); font-weight: 600; font-variant-numeric: tabular-nums; }
.roi-range-sm { width: 150px; flex: 0 0 auto; height: 24px; }
.roi-range-sm::-webkit-slider-thumb { width: 14px; height: 14px; margin-top: -5px; }
.roi-range-sm::-moz-range-thumb { width: 12px; height: 12px; }

/* Manual vs automated bar pair */
.roi-bars { display: flex; flex-direction: column; gap: 16px; margin-top: 30px; }
.roi-bar-head {
  display: flex; justify-content: space-between; align-items: baseline; gap: 14px; margin-bottom: 7px;
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .07em; text-transform: uppercase; color: var(--ink-mute);
}
.roi-bar-head b { font-weight: 600; color: var(--ink-soft); font-variant-numeric: tabular-nums; }
.roi-track {
  height: 10px; border-radius: var(--r-pill); overflow: hidden;
  background: color-mix(in srgb, var(--ink) 6%, transparent); border: 1px solid var(--line);
}
.roi-fill { display: block; height: 100%; border-radius: inherit; transform: scaleX(0); transform-origin: left center; will-change: transform; }
.roi-fill-manual { background: linear-gradient(90deg, color-mix(in srgb, var(--red-bright) 70%, var(--bg-2)), var(--red-bright)); }
.roi-fill-auto { background: linear-gradient(90deg, var(--green), var(--green-soft)); box-shadow: 0 0 14px -2px color-mix(in srgb, var(--green-soft) 55%, transparent); }

/* Outputs */
.roi-out { display: flex; flex-direction: column; margin: 0; }
.roi-out > div {
  display: flex; justify-content: space-between; align-items: baseline; gap: 18px;
  padding: 15px 0; border-top: 1px solid var(--line);
}
.roi-out > div:first-child { border-top: 0; padding-top: 4px; }
.roi-out dt { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-mute); line-height: 1.5; max-width: 20ch; }
.roi-out dd {
  margin: 0; font-family: var(--font-display); font-weight: 800; letter-spacing: var(--tracking-tight);
  font-size: clamp(1.3rem, 1.1rem + 0.9vw, 1.85rem); color: var(--ink);
  font-variant-numeric: tabular-nums; white-space: nowrap;
}
.roi-out .roi-hot dd { color: var(--gold); text-shadow: 0 6px 30px var(--glow-gold); }
.roi-note { margin-top: 18px; font-size: 12px; line-height: 1.6; color: var(--ink-faint); max-width: 40ch; }

@media (max-width: 880px) {
  .roi-grid { grid-template-columns: 1fr; gap: 30px; }
  .roi-out dt { max-width: none; }
  .roi-note { max-width: none; }
}

/* ============================================================
   Reduced motion — final states, no draws / springs / lifts
   (base.css already zeroes transition/animation durations)
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  .roi { opacity: 1; transform: none; }
  .ivc-badge { opacity: 1; transform: none; }
  .iv-chart .ivc-area { opacity: 1; }
  .iv-flourish .ivf-stroke { stroke-dashoffset: 0; }
  .iv-flourish .ivf-dot { opacity: 1; transform: scale(1); }
  .stats-bar .stat-item:hover .stat-number { transform: none; }
}