/* ===== Design tokens ===== */
:root,
[data-theme='light'] {
  --color-bg: #f5f6f8;
  --color-surface: #ffffff;
  --color-surface-2: #fbfbfd;
  --color-surface-offset: #eef0f4;
  --color-divider: #e2e5eb;
  --color-border: #d7dbe3;

  --color-text: #12151c;
  --color-text-muted: #565c6b;
  --color-text-faint: #9aa0ac;
  --color-text-inverse: #f5f6f8;

  --color-primary: #0a7ea8;
  --color-primary-hover: #085e7d;
  --color-primary-highlight: #d7edf6;

  --color-accent-amber: #b5720a;
  --color-accent-amber-highlight: #f7e6c8;

  --color-success: #22773d;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  --transition-interactive: 220ms cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 1px 2px oklch(0.2 0.01 250 / 0.06);
  --shadow-md: 0 8px 24px oklch(0.2 0.01 250 / 0.10);
  --shadow-lg: 0 20px 48px oklch(0.2 0.01 250 / 0.16);

  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-body: 'Inter', 'Helvetica Neue', sans-serif;

  --content-wide: 1180px;
}

[data-theme='dark'] {
  --color-bg: #0a0d13;
  --color-surface: #12151d;
  --color-surface-2: #161a23;
  --color-surface-offset: #191d27;
  --color-divider: #23293580;
  --color-border: #2a3040;

  --color-text: #eef0f4;
  --color-text-muted: #9aa2b4;
  --color-text-faint: #5d6478;
  --color-text-inverse: #0a0d13;

  --color-primary: #33c7ef;
  --color-primary-hover: #6fdaf7;
  --color-primary-highlight: #16323c;

  --color-accent-amber: #f2b94d;
  --color-accent-amber-highlight: #322818;

  --color-success: #5cc788;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md: 0 8px 24px oklch(0 0 0 / 0.45);
  --shadow-lg: 0 24px 56px oklch(0 0 0 / 0.55);
}

/* ===== Type scale ===== */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.2vw, 0.8125rem);
  --text-sm: clamp(0.875rem, 0.82rem + 0.25vw, 0.9375rem);
  --text-base: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1.02rem + 0.5vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.2vw, 2.125rem);
  --text-2xl: clamp(1.875rem, 1.3rem + 2.2vw, 3rem);
  --text-hero: clamp(3rem, 1.2rem + 6.5vw, 6.5rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;
}

/* ===== Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
  position: relative;
  transition: background-color var(--transition-interactive), color var(--transition-interactive);
}

h1, h2, h3 { text-wrap: balance; line-height: 1.1; font-family: var(--font-display); }
p { text-wrap: pretty; max-width: 62ch; }

button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }

:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: var(--radius-sm); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ===== Ambient background ===== */
.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(60% 45% at 18% 0%, color-mix(in oklab, var(--color-primary) 22%, transparent), transparent 70%),
    radial-gradient(45% 35% at 100% 15%, color-mix(in oklab, var(--color-accent-amber) 12%, transparent), transparent 70%);
  opacity: 0.9;
}
.grain {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

/* ===== Header ===== */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: var(--space-6) var(--space-6) var(--space-4);
}
.brand { display: flex; align-items: center; gap: var(--space-2); }
.logo { height: 28px; width: auto; display: block; object-fit: contain; }
.brand-name { font-family: var(--font-display); font-weight: 600; font-size: var(--text-lg); letter-spacing: -0.01em; }
.header-right { display: flex; align-items: center; gap: var(--space-4); }
.header-tag {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--space-1) var(--space-3);
  white-space: nowrap;
}
.theme-toggle {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  transition: color var(--transition-interactive), border-color var(--transition-interactive), background var(--transition-interactive);
}
.theme-toggle:hover { color: var(--color-primary); border-color: var(--color-primary); }

main { max-width: var(--content-wide); margin: 0 auto; padding: 0 var(--space-6); }

/* ===== Hero ===== */
.hero {
  padding: var(--space-16) 0 var(--space-12);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}
.eyebrow {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 500;
  letter-spacing: 0.02em;
}
.hero-figure {
  font-size: var(--text-hero);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  font-variant-numeric: tabular-nums;
}
.hero-figure .count:first-child { color: var(--color-primary); }
.hero-dash { color: var(--color-text-faint); font-weight: 400; }
.hero-label {
  font-size: var(--text-lg);
  color: var(--color-text);
  font-weight: 600;
  max-width: 40ch;
}
.hero-sub {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 50ch;
}
.context-note {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  max-width: 60ch;
  margin: 0 auto var(--space-4);
}
.hero-tags { display: flex; gap: var(--space-3); flex-wrap: wrap; justify-content: center; margin-top: var(--space-2); }
.tag {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}
.tag-live { color: var(--color-accent-amber); border-color: color-mix(in oklab, var(--color-accent-amber) 40%, var(--color-border)); background: var(--color-accent-amber-highlight); }
.tag-target { color: var(--color-primary); font-weight: 700; border-color: color-mix(in oklab, var(--color-primary) 45%, var(--color-border)); background: var(--color-primary-highlight); }
.dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: currentColor;
  display: inline-block;
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }

/* ===== Sections ===== */
.section { padding: var(--space-16) 0; border-top: 1px solid var(--color-divider); }
.section-dark {
  margin: 0 calc(var(--space-6) * -1);
  padding: var(--space-16) var(--space-6);
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  border-top: none;
}
.section-head { max-width: 640px; margin-bottom: var(--space-10); }
.section-head h2 { font-size: var(--text-2xl); font-weight: 600; letter-spacing: -0.015em; margin-bottom: var(--space-3); }
.section-sub { color: var(--color-text-muted); font-size: var(--text-base); }
.roi-tag { margin-top: var(--space-4); color: var(--color-primary); border-color: color-mix(in oklab, var(--color-primary) 40%, var(--color-border)); background: var(--color-primary-highlight, transparent); }

/* ===== Pipeline summary ===== */
.pipeline-summary {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  background: linear-gradient(135deg, color-mix(in oklab, var(--color-primary) 10%, transparent), var(--color-surface-2));
  border: 1px solid color-mix(in oklab, var(--color-primary) 35%, var(--color-border));
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  margin-bottom: var(--space-10);
}
.pipeline-summary-figure { font-size: var(--text-3xl); font-weight: 700; font-family: var(--font-display); color: var(--color-primary); font-variant-numeric: tabular-nums; flex-shrink: 0; }
.pipeline-summary-title { font-size: var(--text-lg); font-weight: 600; margin-bottom: var(--space-2); }
.pipeline-summary-sub { color: var(--color-text-muted); font-size: var(--text-sm); }

/* ===== Target vs actual bars ===== */
.bars { display: flex; flex-direction: column; gap: var(--space-8); }
.bar-row { display: grid; grid-template-columns: 120px 1fr 90px; align-items: center; gap: var(--space-5); }
.bar-row-label { display: flex; flex-direction: column; gap: var(--space-1); }
.q-name { font-weight: 600; font-size: var(--text-base); }
.q-status { font-size: var(--text-xs); color: var(--color-text-faint); }
.q-status.live { color: var(--color-accent-amber); display: inline-flex; align-items: center; gap: var(--space-1); }

.bar-track {
  position: relative;
  height: 44px;
  background: var(--color-surface-offset);
  border-radius: var(--radius-md);
  overflow: visible;
  border: 1px solid var(--color-divider);
}
.bar-fill {
  position: absolute;
  inset: 0;
  width: 0%;
  border-radius: var(--radius-md);
  background: linear-gradient(90deg, color-mix(in oklab, var(--color-primary) 75%, transparent), var(--color-primary));
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: var(--space-3);
  transition: width 1.1s cubic-bezier(0.16, 1, 0.3, 1);
}
.bar-fill.live { background: linear-gradient(90deg, color-mix(in oklab, var(--color-accent-amber) 70%, transparent), var(--color-accent-amber)); }
.bar-value { font-size: var(--text-sm); font-weight: 600; color: var(--color-text-inverse); font-variant-numeric: tabular-nums; white-space: nowrap; }
.bar-target-line {
  position: absolute;
  top: -8px; bottom: -8px;
  width: 0;
  border-left: 2px dashed var(--color-text-faint);
  z-index: 2;
}
.bar-target-tag {
  position: absolute;
  top: -26px;
  left: 0;
  transform: translateX(-50%);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  white-space: nowrap;
}
.bar-multiple { font-size: var(--text-xl); font-weight: 700; font-family: var(--font-display); text-align: right; }
.bar-multiple-sub { display: block; font-size: var(--text-xs); font-weight: 400; color: var(--color-text-faint); font-family: var(--font-body); }
.bars-footnote { margin-top: var(--space-8); color: var(--color-text-muted); font-size: var(--text-sm); }

/* ===== Timeline ===== */
.timeline { padding: var(--space-8) 0 var(--space-4); }
.timeline-track {
  position: relative;
  height: 8px;
  background: var(--color-surface-offset);
  border-radius: var(--radius-full);
  margin: var(--space-16) 0 var(--space-6);
}
.timeline-fill {
  position: absolute; inset: 0;
  width: 0%;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}
.timeline-marker {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--color-primary) 25%, transparent);
}
.timeline-marker-label {
  position: absolute;
  top: -34px;
  left: 50%;
  transform: translateX(-50%);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
}
.timeline-checkpoint {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--color-text-faint);
}
.timeline-checkpoint.end { background: var(--color-accent-amber); }
.timeline-checkpoint.start { background: var(--color-text-faint); }
.timeline-checkpoint-label {
  position: absolute;
  top: 22px;
  left: 50%;
  transform: translateX(-50%);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-align: center;
  white-space: nowrap;
}
.timeline-checkpoint-label.align-left { left: 0; transform: none; text-align: left; }
.timeline-checkpoint-label.align-right { left: auto; right: 0; transform: none; text-align: right; }
.timeline-checkpoint-label strong { color: var(--color-text); }

.projection-card {
  margin-top: var(--space-16);
  display: flex;
  align-items: center;
  gap: var(--space-8);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}
.projection-figure { font-size: var(--text-2xl); font-weight: 700; color: var(--color-accent-amber); font-variant-numeric: tabular-nums; flex-shrink: 0; }
.projection-title { font-size: var(--text-lg); font-weight: 600; margin-bottom: var(--space-2); }
.projection-sub { color: var(--color-text-muted); font-size: var(--text-sm); }

/* ===== Funnel ===== */
.funnel-track {
  height: 12px;
  background: var(--color-surface-offset);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--space-8);
}
.funnel-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, color-mix(in oklab, var(--color-primary) 70%, transparent), var(--color-primary));
  border-radius: var(--radius-full);
  transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}
.funnel-stats { display: flex; gap: var(--space-10); flex-wrap: wrap; }
.funnel-stat { display: flex; flex-direction: column; gap: var(--space-1); }
.funnel-num { font-size: var(--text-2xl); font-weight: 700; font-family: var(--font-display); font-variant-numeric: tabular-nums; }
.funnel-label { font-size: var(--text-sm); color: var(--color-text-muted); }

/* ===== Help section ===== */
.help-section { border-top: 1px solid var(--color-divider); }
.help-header { max-width: 640px; margin-bottom: var(--space-10); text-align: left; }
.help-eyebrow { font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--color-primary); }
.help-header h2 { font-size: var(--text-2xl); margin: var(--space-3) 0 var(--space-2); }
.help-intro { color: var(--color-text-muted); font-size: var(--text-base); }

.help-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.help-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.help-card-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-text-faint);
}
.help-card h3 { font-size: var(--text-lg); font-weight: 600; }
.help-card p { color: var(--color-text-muted); font-size: var(--text-sm); }
.help-card-accent {
  background: linear-gradient(135deg, color-mix(in oklab, var(--color-primary) 14%, transparent), var(--color-surface-2));
  border-color: color-mix(in oklab, var(--color-primary) 45%, var(--color-border));
  box-shadow: 0 0 0 1px color-mix(in oklab, var(--color-primary) 20%, transparent);
}
.help-card-accent .help-card-num { color: var(--color-primary); }
.help-card-accent h3 { color: var(--color-primary); }

/* ===== Footer ===== */
.site-footer {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: var(--space-10) var(--space-6) var(--space-16);
  display: flex;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  border-top: 1px solid var(--color-divider);
}

/* ===== Responsive ===== */
@media (max-width: 760px) {
  .bar-row { grid-template-columns: 1fr; gap: var(--space-3); }
  .bar-multiple { text-align: left; }
  .projection-card { flex-direction: column; align-items: flex-start; }
  .funnel-stats { gap: var(--space-6); }
  .timeline-checkpoint-label { white-space: normal; width: 110px; }
  .header-tag { display: none; }
  .pipeline-summary { flex-direction: column; align-items: flex-start; text-align: left; }
  .help-grid { grid-template-columns: 1fr; }
}