:root {
  --bg: #eef1ec;
  --card: #ffffff;
  --border: #e2ddd5;
  --text: #111b21;
  --muted: #5b6b66;
  --dim: #8696a0;
  --header: #075e54;
  --header-2: #128c7e;
  --accent: #008069;
  --green: #25d366;
  --teal: #128c7e;
  --blue: #34b7f1;
  --amber: #f4a300;
  --red: #ea4335;
}
* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  height: 100%;
}
body {
  background: radial-gradient(1000px 600px at 85% -10%, #d7efe6, transparent),
    radial-gradient(800px 500px at -5% 110%, #d9f6e2, transparent), var(--bg);
  color: var(--text);
  font-family: "Segoe UI", ui-sans-serif, system-ui, -apple-system, Roboto, Helvetica, Arial,
    sans-serif;
  overflow: hidden;
}

#deck {
  height: 100vh;
}
.slide {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  justify-content: center;
  padding: 7vh 9vw;
  max-width: 1120px;
  margin: 0 auto;
  animation: fade 0.4s ease;
}
.slide.active {
  display: flex;
}
@keyframes fade {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* green title + closing slides (the dark/light sandwich) */
.slide.title {
  background: linear-gradient(165deg, var(--header), var(--header-2) 55%, #1faa52);
  color: #fff;
  max-width: none;
  padding: 7vh 9vw;
}
.slide.title .kicker {
  color: #cdeee3;
}
.slide.title .lead,
.slide.title .sub,
.slide.title .by {
  color: rgba(255, 255, 255, 0.92);
}
.slide.title .by {
  color: rgba(255, 255, 255, 0.75);
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.1;
}
h2 {
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 26px;
  color: var(--text);
}
.kicker {
  text-transform: uppercase;
  letter-spacing: 3px;
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 14px;
}
.wordmark {
  font-size: clamp(64px, 13vw, 132px);
  font-weight: 800;
  letter-spacing: -3px;
  color: #fff;
}
.lead {
  font-size: clamp(20px, 3.4vw, 32px);
  margin: 6px 0 18px;
}
.sub {
  color: var(--muted);
  font-size: clamp(15px, 2vw, 19px);
  max-width: 660px;
}
.sub2 {
  color: var(--muted);
  font-size: 18px;
  margin-bottom: 18px;
}
.by {
  color: var(--dim);
  margin-top: 26px;
  font-size: 15px;
}
.note {
  color: var(--muted);
  font-size: 17px;
  margin-top: 26px;
}
.big {
  font-size: clamp(24px, 4.4vw, 40px);
  font-weight: 700;
  line-height: 1.25;
}
.dim {
  color: var(--dim);
}
.hot {
  color: var(--red);
}
.privacy .hot {
  color: var(--accent);
}
code {
  background: #e3efe9;
  padding: 2px 7px;
  border-radius: 6px;
  font-size: 0.85em;
  color: var(--accent);
}

.rings {
  display: flex;
  gap: 18px;
  margin-top: 30px;
}

.checks {
  list-style: none;
  padding: 0;
  margin: 8px 0;
}
.checks li {
  font-size: clamp(16px, 2.3vw, 22px);
  padding: 10px 0 10px 34px;
  position: relative;
  color: var(--text);
}
.checks li::before {
  content: "✦";
  position: absolute;
  left: 0;
  color: var(--green);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 1px 3px rgba(11, 20, 26, 0.07);
}
.card .ic {
  font-size: 26px;
  margin-bottom: 10px;
}
.card h3 {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--text);
}
.card p {
  color: var(--muted);
  font-size: 14px;
  margin: 0;
}

pre {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  background: #0b1f1a;
  border: 1px solid #1d3b34;
  border-radius: 14px;
  padding: 22px 26px;
  font-size: clamp(12px, 1.6vw, 16px);
  line-height: 1.55;
  overflow: auto;
  color: #d7e3df;
  box-shadow: 0 8px 24px rgba(7, 50, 42, 0.15);
}
.c-brand {
  color: var(--green);
  font-weight: 700;
}
.c-rule {
  color: #355c52;
}
.c-warn {
  color: #ff6b6b;
}
.c-amber {
  color: var(--amber);
}
.c-blue {
  color: var(--blue);
}
.c-cyan {
  color: var(--green);
}
.c-dim {
  color: #6f857d;
}
.formula {
  color: #d7e3df;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}
.stats div {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  text-align: center;
  box-shadow: 0 1px 3px rgba(11, 20, 26, 0.07);
}
.stats b {
  display: block;
  font-size: 40px;
  font-weight: 800;
  color: var(--accent);
}
.stats span {
  color: var(--muted);
  font-size: 13px;
}

.pills {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 22px 0;
}
.pills .p {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 15px;
  color: var(--text);
  box-shadow: 0 1px 2px rgba(11, 20, 26, 0.05);
}
.privacy .big {
  margin-bottom: 6px;
}

/* chrome */
.progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: #d7ded9;
  z-index: 20;
}
.progress .bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--green), var(--teal));
  transition: width 0.3s ease;
}
.dots {
  position: fixed;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 20;
}
.dots button {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: none;
  background: #c2ccc7;
  cursor: pointer;
  padding: 0;
}
.dots button.on {
  background: var(--accent);
  transform: scale(1.25);
}
.hint {
  position: fixed;
  bottom: 18px;
  right: 22px;
  color: var(--dim);
  font-size: 12px;
  z-index: 20;
}

@media (max-width: 760px) {
  .grid,
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .hint {
    display: none;
  }
}