:root {
  --bg: #0b0f0d;
  --bg2: #121815;
  --card: #18201c;
  --line: #28332d;
  --text: #eef3f0;
  --muted: #9fb0a7;
  --accent: #3ddc84;
  --grey: #6f7c75;
  --warn: #f0a43a;
  --font: "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--text); font-family: var(--font); overflow: hidden; }
body { -webkit-text-size-adjust: 100%; }
.slide * { overflow-wrap: anywhere; }

.deck { position: fixed; inset: 0; }
.slide {
  position: absolute; inset: 0; overflow-y: auto; overflow-x: hidden;
  display: flex; align-items: center; justify-content: center;
  padding: clamp(16px, 4vw, 56px) clamp(16px, 5vw, 72px) 84px;
  opacity: 0; visibility: hidden; transform: translateX(24px);
  transition: opacity .45s ease, transform .45s ease, visibility 0s .45s;
  background: radial-gradient(900px 500px at 85% -10%, rgba(61,220,132,.10), transparent 60%), var(--bg);
}
.slide.before { transform: translateX(-24px); }
.slide.active { opacity: 1; visibility: visible; transform: none; transition: opacity .45s ease, transform .45s ease; }
.inner { min-width: 0; width: 100%; max-width: 980px; margin: auto; }
.inner.wide { max-width: 1120px; }

.kicker { color: var(--accent); text-transform: uppercase; letter-spacing: .14em; font-weight: 700; font-size: clamp(.72rem, 1.4vw, .9rem); margin: 0 0 .6em; }
h1 { font-size: clamp(2.2rem, 7vw, 5rem); line-height: 1.05; margin: 0 0 .4em; font-weight: 800; letter-spacing: -.02em; }
h2 { font-size: clamp(1.7rem, 4.6vw, 3.2rem); line-height: 1.1; margin: 0 0 .7em; font-weight: 800; letter-spacing: -.015em; }
h3.chart-title { font-size: clamp(.95rem, 1.8vw, 1.2rem); margin: 0 0 .7em; font-weight: 600; color: var(--muted); }
h4 { margin: 0 0 .6em; font-size: clamp(1rem, 1.9vw, 1.25rem); }
.accent { color: var(--accent); }
.lead { font-size: clamp(1.05rem, 2.4vw, 1.5rem); color: var(--muted); max-width: 40ch; line-height: 1.4; }
.team { color: var(--muted); margin-top: 2em; font-size: clamp(.9rem, 1.8vw, 1.1rem); }
.takeaway { margin-top: 1.4em; font-size: clamp(1.05rem, 2.2vw, 1.5rem); color: var(--text); border-left: 4px solid var(--accent); padding-left: .8em; line-height: 1.35; }
.note { color: var(--muted); font-size: clamp(.78rem, 1.4vw, .95rem); margin-top: 1em; line-height: 1.45; }
.title-slide .inner { text-align: left; }

.cols { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(10px, 2vw, 20px); }
.cols.three { grid-template-columns: repeat(3, 1fr); }
.cols.four { grid-template-columns: repeat(4, 1fr); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: clamp(14px, 2.2vw, 24px); }
.card p { margin: .3em 0 0; color: var(--muted); font-size: clamp(.9rem, 1.6vw, 1.1rem); line-height: 1.45; }
.card.warn { border-color: rgba(240,164,58,.5); }
.card.warn h4 { color: var(--warn); }
.card.warn p { color: var(--text); }
.big { font-size: clamp(2rem, 5.2vw, 3.6rem); font-weight: 800; color: var(--accent); line-height: 1; letter-spacing: -.02em; }
.big.muted { color: var(--grey); }
.split { display: grid; grid-template-columns: 1.3fr 1fr; gap: clamp(14px, 3vw, 32px); align-items: start; }

/* flow and pipeline */
.flow { display: flex; align-items: stretch; gap: 12px; }
.step { flex: 1; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px; }
.step p { margin: .3em 0 0; color: var(--muted); }
.step strong { font-size: clamp(1.05rem, 2vw, 1.4rem); }
.arrow { align-self: center; font-size: 2rem; color: var(--accent); }
.n { display: inline-flex; width: 1.8em; height: 1.8em; align-items: center; justify-content: center; border-radius: 50%; background: var(--accent); color: #04130a; font-weight: 800; margin-right: .6em; font-size: .85rem; }
.pipeline { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.pipeline li { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 14px; }
.pipeline li strong { font-size: clamp(.95rem, 1.7vw, 1.15rem); }
.pipeline li p { margin: .5em 0 0; color: var(--muted); font-size: clamp(.8rem, 1.4vw, .98rem); line-height: 1.4; }
.pipeline li .n { margin-bottom: .5em; }

/* dots */
.dots { display: grid; grid-template-columns: repeat(18, 1fr); gap: clamp(4px, 1vw, 10px); margin: 0 0 1.4em; }
.dots i { aspect-ratio: 1; border-radius: 50%; background: var(--line); display: block; }
.dots i.fraud { background: var(--accent); box-shadow: 0 0 0 4px rgba(61,220,132,.25); }

/* charts */
.chart { min-width: 0; display: flex; flex-direction: column; gap: clamp(6px, 1.1vw, 10px); }
.row { min-width: 0; display: grid; grid-template-columns: minmax(130px, 38%) 1fr; gap: 12px; align-items: center; cursor: default; border-radius: 8px; outline: none; }
.row:hover, .row:focus-visible { background: rgba(255,255,255,.04); }
.label { font-size: clamp(.78rem, 1.5vw, 1.02rem); text-align: right; line-height: 1.25; }
.track { min-width: 0; position: relative; height: clamp(22px, 3.6vw, 34px); background: rgba(255,255,255,.04); border-radius: 6px; }
.bar { height: 100%; width: 0; border-radius: 6px; }
.val { position: absolute; left: 8px; top: 50%; transform: translateY(-50%); font-weight: 800; font-size: clamp(.8rem, 1.5vw, 1.05rem); text-shadow: 0 0 6px rgba(0,0,0,.7); white-space: nowrap; }
.avg { position: absolute; top: -3px; bottom: -3px; border-left: 2px dashed #fff; opacity: .8; }
.avg.first::before { content: attr(data-label); position: absolute; top: -1.5em; left: 4px; font-size: .75rem; color: var(--muted); white-space: nowrap; }
.chart.mini { margin: .4em 0 1em; }
.chart.mini .row { grid-template-columns: 1fr; gap: 3px; }
.chart.mini .label { text-align: left; font-size: .85rem; color: var(--muted); }
.chart.mini .avg.first::before { display: none; }
.chart.mini .track { height: 24px; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-top: 1em; font-size: clamp(.75rem, 1.4vw, .92rem); color: var(--muted); }
.legend i { display: inline-block; width: .8em; height: .8em; border-radius: 3px; margin-right: .5em; vertical-align: -1px; }

.tooltip { position: fixed; z-index: 50; max-width: 260px; background: #fff; color: #0b0f0d; padding: 10px 12px; border-radius: 10px; font-size: .85rem; line-height: 1.4; pointer-events: none; box-shadow: 0 10px 30px rgba(0,0,0,.5); }

/* downloads */
.buttons { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 1.6em; }
.btn { display: inline-block; background: var(--accent); color: #04130a; text-decoration: none; font-weight: 800; padding: .8em 1.4em; border-radius: 999px; font-size: clamp(1rem, 2vw, 1.2rem); transition: transform .15s; }
.btn:hover { transform: translateY(-2px); }

/* navigation */
.nav { position: fixed; left: 50%; bottom: max(14px, env(safe-area-inset-bottom)); transform: translateX(-50%); display: flex; align-items: center; gap: 14px; background: rgba(18,24,21,.9); border: 1px solid var(--line); border-radius: 999px; padding: 6px 10px; z-index: 20; backdrop-filter: blur(6px); }
.nav-btn { width: 44px; height: 44px; border-radius: 50%; border: 0; background: var(--card); color: var(--text); font-size: 1.2rem; font-weight: 800; cursor: pointer; }
.nav-btn:hover { background: var(--accent); color: #04130a; }
.counter { min-width: 4.5em; text-align: center; font-variant-numeric: tabular-nums; color: var(--muted); font-weight: 600; }
.progress { position: fixed; left: 0; right: 0; top: 0; height: 3px; z-index: 20; }
.progress div { height: 100%; width: 0; background: var(--accent); transition: width .4s ease; }

/* phones */
@media (max-width: 760px) {
  .slide { align-items: flex-start; padding-top: 28px; }
  .cols, .cols.three, .cols.four, .split { grid-template-columns: 1fr; }
  .cols.four { grid-template-columns: 1fr 1fr; }
  .pipeline { grid-template-columns: 1fr 1fr; }
  .flow { flex-direction: column; }
  .arrow { transform: rotate(90deg); }
  .row { grid-template-columns: 1fr; gap: 3px; }
  .label { text-align: left; color: var(--muted); }
  .avg.first::before { display: none; }
}
@media (max-width: 420px) { .cols.four { grid-template-columns: 1fr; } .pipeline { grid-template-columns: 1fr; } }
@media (prefers-reduced-motion: reduce) { .slide, .slide.active, .progress div { transition: none; } }

/* tiles: random checks vs our model */
.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(8px, 1.6vw, 16px); }
.tiles-head { font-weight: 800; font-size: clamp(1rem, 2vw, 1.4rem); padding: 0 4px; }
.tiles-head small { font-weight: 500; color: var(--muted); }
.tiles-head.mdl { color: var(--accent); }
.tiles-head.rnd { color: var(--muted); }
.tile { position: relative; border-radius: 16px; padding: clamp(12px, 1.8vw, 20px); border: 1px solid var(--line); }
.tile p { margin: .3em 0 0; font-size: clamp(.85rem, 1.5vw, 1.05rem); line-height: 1.35; }
.tile.rnd { background: var(--card); }
.tile.rnd .big { color: var(--grey); }
.tile.rnd p { color: var(--muted); }
.tile.mdl { background: rgba(61,220,132,.10); border-color: rgba(61,220,132,.55); }
.tile.mdl p { color: var(--text); }
.tile .big { font-size: clamp(1.8rem, 4.4vw, 3rem); }
.badge { position: absolute; top: 10px; right: 12px; background: var(--accent); color: #04130a; font-weight: 800; font-size: clamp(.75rem, 1.3vw, .95rem); padding: .2em .65em; border-radius: 999px; }
@media (max-width: 760px) { .tiles { grid-template-columns: 1fr 1fr; } .tile .big { font-size: 1.6rem; } .badge { position: static; display: inline-block; margin-bottom: 4px; } }

/* print / PDF: ?print shows all slides as 16:9 pages */
@page { size: 1280px 720px; margin: 0; }
body.print { overflow: visible; height: auto; }
body.print .deck { position: static; }
body.print .nav, body.print .progress, body.print .tooltip, body.print .btn { display: none; }
body.print .buttons { display: none; }
body.print .slide { position: relative; inset: auto; width: 1280px; height: 720px; opacity: 1; visibility: visible; transform: none; transition: none; break-after: page; page-break-after: always; overflow: hidden; padding: 40px 72px; }
body.print .bar { transition: none !important; }

.chart + .cols { margin-top: 1.4em; }
.cols + .chart-title { margin-top: 1.6em; }