/* ────────────────────────────────────────────────────────────────────
   Nissy - landing page styles
   Type:  Instrument Serif (display headings) · IBM Plex Sans (body) ·
          IBM Plex Mono (code, signal lines, labels)
   Color: cool near-black with cyan accent matching the character glow
   ──────────────────────────────────────────────────────────────────── */

:root {
  --accent-hue: 200;
  --accent: oklch(0.86 0.13 var(--accent-hue));
  --accent-dim: oklch(0.72 0.09 var(--accent-hue));
  --accent-faint: oklch(0.42 0.05 var(--accent-hue) / 0.22);
  --accent-glow: oklch(0.86 0.16 var(--accent-hue) / 0.45);
  --accent-soft: oklch(0.25 0.045 var(--accent-hue) / 0.4);

  --bg: oklch(0.152 0.020 168);
  --bg-elev: oklch(0.200 0.018 168);
  --bg-card: oklch(0.185 0.016 168 / 0.7);
  --bg-card-cold: oklch(0.165 0.010 168 / 0.7);

  --line: oklch(0.32 0.014 220 / 0.55);
  --line-strong: oklch(0.42 0.018 220);
  --line-soft: oklch(0.28 0.014 220 / 0.3);

  --fg: oklch(0.96 0.005 220);
  --fg-mute: oklch(0.78 0.008 220);
  --fg-dim: oklch(0.62 0.01 220);
  --fg-faint: oklch(0.48 0.012 220);

  --diff-add: oklch(0.78 0.13 145);
  --diff-del: oklch(0.72 0.16 25);

  --serif: "Instrument Serif", "Source Serif 4", "Iowan Old Style", Georgia, serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "IBM Plex Sans", ui-sans-serif, system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.5;
}

/* radial backdrop */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 40% at 75% 20%, oklch(0.55 0.13 var(--accent-hue) / 0.18), transparent 60%),
    radial-gradient(ellipse 90% 70% at 50% 110%, oklch(0.3 0.06 var(--accent-hue) / 0.22), transparent 70%),
    radial-gradient(ellipse 120% 80% at 20% 55%, oklch(0.28 0.05 155 / 0.22), transparent 70%),
    radial-gradient(ellipse 100% 100% at 50% 50%, oklch(0.22 0.03 160 / 0.30), transparent 80%);
  pointer-events: none;
  z-index: 0;
}

/* faint grid in viewport */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(to right, oklch(0.5 0.02 220 / 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, oklch(0.5 0.02 220 / 0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 30%, black 30%, transparent 80%);
  pointer-events: none;
  z-index: 0;
}

main {
  position: relative;
  z-index: 1;
}

/* ─────── reusable: type ─────── */
.serif {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.005em;
}
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-dim);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before, .eyebrow::after {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--line-strong);
}
.eyebrow.center { display: inline-flex; }

.accent-text { color: var(--accent); }

/* ─────── TOP BAR ─────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--fg-dim);
  letter-spacing: 0.02em;
  background: oklch(0.155 0.012 220 / 0);
  transition: background 250ms, border-color 250ms, backdrop-filter 250ms;
  border-bottom: 1px solid transparent;
}
.topbar.scrolled {
  background: oklch(0.155 0.012 220 / 0.78);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line-soft);
}
.topbar .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
  font-weight: 500;
}
.brand-mark {
  width: 28px;
  height: 28px;
  background: url("assets/orb.png") center/contain no-repeat;
  filter: drop-shadow(0 0 6px var(--accent-glow));
  flex-shrink: 0;
}
.topbar .status {
  display: flex;
  align-items: center;
  gap: 8px;
}
.topbar .status a {
  color: inherit;
  text-decoration: none;
  cursor: pointer;
}
.topbar .status a:visited { color: inherit; }
.topbar .status a:hover { color: var(--accent); }
.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.15); }
}

/* ─────── section scaffolding ─────── */
section {
  position: relative;
  padding: clamp(44px, 5.5vw, 72px) 32px;
}
.wrap {
  max-width: 1200px;
  margin: 0 auto;
}
.wrap-narrow {
  max-width: 720px;
  margin: 0 auto;
}
.wrap-mid {
  max-width: 920px;
  margin: 0 auto;
}

/* ─────── HERO (Section 1) ─────── */
.hero {
  padding-top: clamp(48px, 6vw, 80px);
  min-height: calc(100vh - 60px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}
.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 28px;
  max-width: 600px;
}

h1.hero-h {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(46px, 5.9vw, 69px);
  line-height: 1.04;
  letter-spacing: -0.015em;
  margin: 0;
  color: var(--fg);
  text-wrap: balance;
}
h1.hero-h .num {
  color: var(--accent);
  font-style: italic;
  font-weight: 400;
}
h1.hero-h .line2 {
  display: block;
  color: var(--fg-mute);
}

.hero-sub-italic {
  color: var(--fg);
  margin-top: -4px;
}
.hero-sub-italic em { font-style: italic; color: var(--fg); }
.hero-sub {
  font-size: 19px;
  line-height: 1.6;
  color: var(--fg-mute);
  max-width: 52ch;
  margin: 0;
  text-wrap: pretty;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--fg-dim);
  letter-spacing: 0.02em;
  margin-top: 4px;
}
.badges .lbl { margin-right: 4px; }
.badges .agent-chip {
  padding: 5px 11px;
  border-radius: 999px;
  background: oklch(0.22 0.01 220 / 0.6);
  border: 1px solid var(--line);
  color: var(--fg-mute);
}
.badges .plus { color: var(--fg-faint); margin-left: 2px; }

/* scroll prompt */
.scroll-prompt {
  position: absolute;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-dim);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  text-decoration: none;
  opacity: 1;
  transition: opacity 400ms, color 200ms;
}
.scroll-prompt.hidden { opacity: 0; pointer-events: none; }
.scroll-prompt:hover { color: var(--accent); }
.scroll-prompt .arrow {
  display: inline-block;
  animation: bob 2.2s ease-in-out infinite;
}
@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(4px); }
}

/* hero character */
.character-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 480px;
}
.character {
  position: relative;
  width: min(100%, 520px);
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.character::before {
  content: "";
  position: absolute;
  inset: 10%;
  border-radius: 50%;
  background: radial-gradient(circle, oklch(0.72 0.18 var(--accent-hue) / 0.45) 0%, transparent 60%);
  filter: blur(36px);
  z-index: 0;
  animation: glow 5s ease-in-out infinite;
}
.character img {
  position: relative;
  width: 100%;
  height: 100%;
  object-fit: contain;
  z-index: 2;
  animation: float 6s ease-in-out infinite;
  filter: drop-shadow(0 18px 36px oklch(0.4 0.1 var(--accent-hue) / 0.5));
}
/* session card floats in bottom-left of character area.
   Height is capped + masked so older lines fade out at the top
   instead of pushing the card up into the character. */
.hero-session {
  position: absolute;
  left: -28px;
  bottom: 18%;
  width: 300px;
  z-index: 3;
}
.hero-session .session-card {
  max-height: 150px;
  overflow: hidden;
}
.hero-session .session-card .sc-body {
  overflow-y: scroll;
  scrollbar-width: none;
  max-height: 88px;
  padding-top: 22px;
  mask-image: linear-gradient(to bottom, transparent 0%, black 24px, black 100%);
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, black 24px, black 100%);
}
.hero-session .session-card .sc-body::-webkit-scrollbar { display: none; }
@keyframes float {
  0%, 100% { transform: translateY(0) rotate(-0.5deg); }
  50% { transform: translateY(-14px) rotate(0.5deg); }
}
@keyframes glow {
  0%, 100% { opacity: 0.85; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.08); }
}

/* ─────── session card (used in hero + pillar 2) ─────── */
.session-card {
  background: oklch(0.155 0.012 220 / 0.88);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.55;
  color: var(--fg-mute);
  box-shadow: 0 18px 48px oklch(0.1 0.02 220 / 0.5);
}
.session-card .sc-hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 9px;
  padding-bottom: 9px;
  border-bottom: 1px dashed var(--line);
}
.session-card .sc-hd .sc-title {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-dim);
}
.session-card .sc-hd .sc-live {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 6px;
}
.session-card .line { margin-bottom: 5px; min-height: 18px; }
.session-card .who {
  color: var(--fg-dim);
  margin-right: 8px;
}
.session-card .who.dev { color: oklch(0.78 0.12 75); }
.session-card .who.agent { color: oklch(0.78 0.08 280); }
.session-card .nissy-note {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  display: flex;
  gap: 10px;
  align-items: flex-start;
}
.session-card .nissy-note .nissy-mark {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  background: url("assets/orb.png") center/contain no-repeat;
  filter: drop-shadow(0 0 4px var(--accent-glow));
}
.session-card .nissy-note .text {
  color: var(--fg);
  font-size: 12.5px;
}
.session-card .nissy-note .text em {
  color: var(--accent);
  font-style: normal;
}
.session-card .typing-caret {
  display: inline-block;
  width: 7px;
  height: 11px;
  background: var(--accent);
  vertical-align: -1px;
  margin-left: 2px;
  animation: blink 1s steps(2, end) infinite;
}
@keyframes blink {
  50% { opacity: 0; }
}

/* ─────── SECTION 2: Problem ─────── */
.s-problem {
  text-align: center;
  border-top: 1px solid var(--line-soft);
}
.s-problem h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(37px, 4.6vw, 59px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin: 22px 0 32px;
  color: var(--fg);
  text-wrap: balance;
}
.s-problem p {
  font-size: 19px;
  line-height: 1.7;
  color: var(--fg-mute);
  margin: 0 0 22px;
  text-align: left;
  text-wrap: pretty;
}
.s-problem p:last-of-type {
  text-align: center;
  font-size: 21px;
  margin-top: 32px;
  color: var(--fg);
  font-weight: 400;
}
.intent-debt {
  color: var(--accent);
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 1.08em;
  letter-spacing: -0.005em;
}

/* ─────── SECTION 3: Gap (evidence panels) ─────── */
.s-gap {
  border-top: 1px solid var(--line-soft);
}
.s-gap .head {
  text-align: center;
  margin-bottom: 48px;
}
.s-gap .head h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(33px, 4vw, 46px);
  line-height: 1.15;
  letter-spacing: -0.012em;
  margin: 18px 0 0;
  color: var(--fg);
  text-wrap: balance;
}
.panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: stretch;
}
.panel {
  border-radius: 14px;
  padding: 26px 26px 28px;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}
.panel-label {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-dim);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.panel-label .dotmark {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--fg-faint);
}
.panel.warm {
  background: oklch(0.2 0.024 var(--accent-hue) / 0.4);
  border: 1px solid var(--accent-faint);
  box-shadow: 0 18px 48px oklch(0.1 0.02 220 / 0.4), inset 0 0 60px oklch(0.55 0.1 var(--accent-hue) / 0.06);
}
.panel.warm .panel-label .dotmark {
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
}
.panel.cold {
  background: var(--bg-card-cold);
  border: 1px solid var(--line);
  box-shadow: 0 18px 48px oklch(0.1 0.02 220 / 0.4);
}
.panel pre {
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.7;
  margin: 0;
  white-space: pre-wrap;
  overflow-wrap: break-word;
  color: var(--fg);
}
.panel .convo {
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.7;
  margin: 0;
  color: var(--fg);
}
.panel .convo .row {
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 0 6px;
  margin-bottom: 16px;
  align-items: baseline;
}
.panel .convo .row:last-child { margin-bottom: 0; }
.panel .convo .who {
  color: oklch(0.78 0.12 75);
}
.panel .convo .who.agent { color: oklch(0.78 0.08 280); }
.panel .convo .who.dev { color: var(--accent); }
.panel .convo .body { min-width: 0; overflow-wrap: break-word; word-break: break-word; }
.panel.warm .convo .body { color: var(--fg-mute); }
.panel.cold .commit {
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--fg-dim);
  overflow-wrap: break-word;
  word-break: break-word;
}
.panel.cold .commit .sha { color: var(--fg-faint); display: block; }
.panel.cold .commit .msg { color: var(--fg-mute); display: block; margin: 6px 0 14px; }
.panel.cold .diff { display: block; }
.panel.cold .diff .add { color: var(--diff-add); display: block; }
.panel.cold .diff .del { color: var(--diff-del); display: block; }

.gap-caption {
  text-align: center;
  margin-top: 40px;
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.5;
  color: var(--fg-mute);
  font-style: italic;
}
.gap-caption strong {
  color: var(--fg);
  font-weight: 400;
  font-style: normal;
}

/* ─────── SECTION 4: Pillars ─────── */
.s-pillars {
  border-top: 1px solid var(--line-soft);
}
.s-pillars .head {
  text-align: center;
  margin-bottom: 48px;
}
.s-pillars .head h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(35px, 4.2vw, 51px);
  line-height: 1.15;
  letter-spacing: -0.012em;
  margin: 18px 0 0;
  color: var(--fg);
  text-wrap: balance;
}
.pillar {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding: 56px 0;
  border-top: 1px solid var(--line-soft);
}
.pillar:first-child { border-top: 0; }
.pillar.flip .pillar-copy { order: 2; }
.pillar.flip .pillar-visual { order: 1; }

/* pillar-hd: desktop — not interactive, chevron hidden */
.pillar-hd { cursor: default; }
.pillar-chevron { display: none; }

.pillar-num {
  font-family: var(--serif);
  font-style: italic;
  font-size: 24px;
  color: var(--accent);
  margin-bottom: 12px;
  display: block;
}
.pillar h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(31px, 3.5vw, 42px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 18px;
  color: var(--fg);
  text-wrap: balance;
}
.pillar p {
  font-size: 18px;
  line-height: 1.65;
  color: var(--fg-mute);
  margin: 0;
  max-width: 52ch;
  text-wrap: pretty;
}

/* signal line card */
.signal {
  margin-top: 22px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-left: 2px solid var(--accent);
  border-radius: 10px;
  padding: 14px 16px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--fg);
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.signal .nissy-mark {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 2px;
  background: url("assets/orb.png") center/contain no-repeat;
  filter: drop-shadow(0 0 4px var(--accent-glow));
}
.signal .body { display: flex; flex-direction: column; gap: 4px; }
.signal .file { color: var(--fg); display: inline-flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.signal .detail { color: var(--fg-dim); font-size: 12.5px; }
.signal .tags { color: var(--accent-dim); font-size: 12.5px; }
.signal .signal-tag {
  display: inline-flex;
  align-items: center;
  height: 18px;
  padding: 0 7px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: 3px;
  background: oklch(0.55 0.13 60 / 0.18);
  color: oklch(0.82 0.12 75);
  border: 1px solid oklch(0.55 0.13 60 / 0.45);
}
.signal .signal-tag.captured {
  background: oklch(0.55 0.13 var(--accent-hue) / 0.18);
  color: var(--accent);
  border-color: oklch(0.55 0.13 var(--accent-hue) / 0.45);
}
.signal .signal-tag.warn {
  background: oklch(0.55 0.16 30 / 0.18);
  color: oklch(0.8 0.16 30);
  border-color: oklch(0.55 0.16 30 / 0.5);
}

/* pillar visuals */
.pillar-visual { position: relative; min-height: 320px; display: flex; align-items: center; justify-content: center; }

/* artefact card (pillar 1) */
.artefact {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 20px;
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.65;
  color: var(--fg-mute);
  width: 100%;
  max-width: 440px;
  box-shadow: 0 18px 48px oklch(0.1 0.02 220 / 0.4);
}
.artefact .file-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--line);
}
.artefact .filename { color: var(--fg); font-weight: 500; }
.artefact .saved {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.artefact h4 {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 400;
  margin: 0 0 10px;
  color: var(--fg);
  letter-spacing: -0.01em;
}
.artefact .meta { color: var(--fg-dim); font-size: 12px; margin-bottom: 14px; }
.artefact .meta span + span::before { content: " · "; color: var(--fg-faint); }
.artefact ul {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  font-size: 14px;
}
.artefact ul li {
  padding: 4px 0;
  display: flex;
  gap: 10px;
}
.artefact ul li::before {
  content: "▸";
  color: var(--accent-dim);
}

/* PR card (pillar 3) */
.pr-card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 20px;
  font-family: var(--sans);
  width: 100%;
  max-width: 460px;
  box-shadow: 0 18px 48px oklch(0.1 0.02 220 / 0.4);
}
.pr-card .pr-hd {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: 1px dashed var(--line);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-dim);
}
.pr-card .pr-hd .badge {
  background: oklch(0.4 0.13 145 / 0.25);
  color: oklch(0.85 0.12 145);
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.pr-card h4 {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 400;
  margin: 0 0 14px;
  color: var(--fg);
  letter-spacing: -0.005em;
}
.pr-card .pr-section { margin-bottom: 14px; }
.pr-card .pr-section:last-child { margin-bottom: 0; }
.pr-card .pr-section h5 {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-dim);
  margin: 0 0 6px;
  font-weight: 500;
}
.pr-card .pr-section p {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
  color: var(--fg-mute);
}
.pr-card .pr-section .links {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--accent-dim);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
}
.pr-card .source-tag {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-dim);
  display: flex;
  align-items: center;
  gap: 8px;
}
.pr-card .source-tag .nissy-mark {
  width: 14px; height: 14px;
  background: url("assets/orb.png") center/contain no-repeat;
  filter: drop-shadow(0 0 4px var(--accent-glow));
}

/* ─────── coach card (pillar 3) ─────── */
.coach-card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px;
  width: 100%;
  max-width: 460px;
  font-family: var(--sans);
  box-shadow: 0 18px 48px oklch(0.1 0.02 220 / 0.4);
}
.coach-card .cc-hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--line);
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-dim);
}
.coach-card .cc-stat { color: var(--accent-dim); }
.coach-card h4 {
  font-family: var(--serif);
  font-size: 23px;
  font-weight: 400;
  margin: 0 0 14px;
  color: var(--fg);
  letter-spacing: -0.005em;
}
.coach-card .cc-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.coach-card .cc-list li {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 12px;
  align-items: flex-start;
  padding: 10px;
  border-radius: 8px;
  background: oklch(0.18 0.012 220 / 0.5);
  border: 1px solid var(--line-soft);
}
.coach-card .cc-tag {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: center;
  padding: 4px 0;
  border-radius: 4px;
  background: oklch(0.55 0.13 var(--accent-hue) / 0.18);
  color: var(--accent);
  border: 1px solid var(--accent-faint);
}
.coach-card .cc-tag.warn {
  background: oklch(0.55 0.13 60 / 0.18);
  color: oklch(0.8 0.13 60);
  border-color: oklch(0.55 0.13 60 / 0.45);
}
.coach-card .cc-body { display: flex; flex-direction: column; gap: 3px; }
.coach-card .cc-body strong {
  font-size: 14.5px;
  color: var(--fg);
  font-weight: 500;
}
.coach-card .cc-body span {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-dim);
}
.coach-card .cc-foot {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-dim);
}
.coach-card .cc-foot .nissy-mark {
  width: 14px; height: 14px;
  background: url("assets/orb.png") center/contain no-repeat;
  filter: drop-shadow(0 0 4px var(--accent-glow));
  flex-shrink: 0;
}

/* ─────── drift map (pillar 4) ─────── */
.drift-map {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px;
  width: 100%;
  max-width: 460px;
  font-family: var(--sans);
  box-shadow: 0 18px 48px oklch(0.1 0.02 220 / 0.4);
}
.drift-map .dm-hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--line);
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-dim);
}
.drift-map .dm-stat { color: var(--accent-dim); }
.drift-map .dm-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  margin-bottom: 14px;
}
.drift-map .dm-cell {
  position: relative;
  padding: 12px 10px;
  border-radius: 6px;
  border: 1px solid var(--line-soft);
  background: oklch(0.18 0.012 220 / 0.5);
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow: hidden;
}
.drift-map .dm-name {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--fg-mute);
  letter-spacing: 0.02em;
  position: relative;
  z-index: 1;
}
.drift-map .dm-bar {
  display: block;
  height: 3px;
  border-radius: 2px;
  background: currentColor;
  opacity: 0.85;
  position: relative;
  z-index: 1;
}
.drift-map .dm-cell.lvl-0 {
  color: oklch(0.7 0.14 165);
  background: oklch(0.3 0.05 165 / 0.22);
  border-color: oklch(0.55 0.1 165 / 0.4);
}
.drift-map .dm-cell.lvl-1 {
  color: var(--accent);
  background: oklch(0.3 0.045 var(--accent-hue) / 0.22);
  border-color: var(--accent-faint);
}
.drift-map .dm-cell.lvl-2 {
  color: oklch(0.78 0.14 75);
  background: oklch(0.3 0.06 75 / 0.22);
  border-color: oklch(0.55 0.13 75 / 0.4);
}
.drift-map .dm-cell.lvl-3 {
  color: oklch(0.78 0.16 30);
  background: oklch(0.3 0.08 30 / 0.28);
  border-color: oklch(0.55 0.16 30 / 0.5);
}
.drift-map .dm-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 8px 0;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--fg-dim);
}
.drift-map .dm-key {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.drift-map .dm-key i {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  display: inline-block;
}
.drift-map .dm-key i.lvl-0 { background: oklch(0.6 0.13 165); }
.drift-map .dm-key i.lvl-2 { background: oklch(0.7 0.14 75); }
.drift-map .dm-key i.lvl-3 { background: oklch(0.7 0.16 30); }
.drift-map .dm-foot {
  margin-top: 8px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-mute);
  line-height: 1.5;
}
.drift-map .dm-foot strong { color: var(--fg); font-weight: 500; }
.drift-map .dm-foot .nissy-mark {
  width: 14px; height: 14px;
  background: url("assets/orb.png") center/contain no-repeat;
  filter: drop-shadow(0 0 4px var(--accent-glow));
  flex-shrink: 0;
  margin-top: 2px;
}

/* ─────── SECTION: Origin ─────── */
.s-origin {
  border-top: 1px solid var(--line-soft);
  text-align: center;
}
.s-origin p {
  font-size: 17px;
  line-height: 1.75;
  color: var(--fg-faint);
  max-width: 600px;
  margin: 0 auto 1.2em;
  text-wrap: pretty;
}
.s-origin p:first-of-type { margin-top: 22px; }
.s-origin p:last-child { margin-bottom: 0; }

/* ─────── SECTION 5: Privacy ─────── */
.s-privacy {
  border-top: 1px solid var(--line-soft);
}
.s-privacy .head {
  text-align: center;
  margin-bottom: 48px;
}
.s-privacy .head h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(35px, 4.2vw, 51px);
  line-height: 1.15;
  letter-spacing: -0.012em;
  margin: 18px 0 0;
  color: var(--fg);
  text-wrap: balance;
}
.privacy-blocks {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-bottom: 36px;
}
.privacy-block {
  background: var(--bg-card-cold);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.privacy-block .pb-hd {
  display: flex;
  align-items: center;
  gap: 10px;
}
.privacy-block .pb-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  border: 1px solid var(--accent-faint);
  background: oklch(0.25 0.04 var(--accent-hue) / 0.35);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}
.privacy-block h4 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 21px;
  margin: 0;
  color: var(--fg);
  letter-spacing: -0.005em;
}
.privacy-block p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--fg-mute);
}

.privacy-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 56px;
}
.privacy-tags .tag {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--accent-faint);
  background: oklch(0.25 0.04 var(--accent-hue) / 0.2);
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--accent);
  letter-spacing: 0.02em;
}

.governance {
  max-width: 720px;
  margin: 0 auto;
  padding: 22px 24px;
  background: oklch(0.18 0.012 220 / 0.5);
  border: 1px dashed var(--line);
  border-radius: 12px;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--fg-dim);
  text-align: center;
}
.governance strong {
  color: var(--fg-mute);
  font-weight: 500;
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.governance a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1px solid var(--accent-faint);
  padding-bottom: 1px;
}
.governance a:hover { border-bottom-color: var(--accent); }

/* ─────── INLINE CTA BUTTON ─────── */
.cta-inline-wrap {
  display: flex;
  width: 100%;
  padding: 0 32px;
  margin: 8px 0 56px;
}
.cta-inline-wrap.align-center { justify-content: center; margin: clamp(32px, 3.5vw, 48px) 0 0; }
.cta-inline-wrap.align-left { justify-content: flex-start; margin: 28px 0 0; padding: 0; }
.cta-inline {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  border-radius: 999px;
  font: 600 15px/1 var(--sans);
  letter-spacing: 0.01em;
  text-decoration: none;
  cursor: pointer;
  transition: background 180ms, color 180ms, border-color 180ms, transform 150ms, box-shadow 180ms;
  white-space: nowrap;
  position: relative;
}
.cta-inline::before {
  content: '';
  position: absolute;
  inset: -1.5px;
  border-radius: inherit;
  padding: 1.5px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    oklch(0.86 0.16 var(--accent-hue) / 0.8) 50%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: cta-shimmer 2.4s linear infinite;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
@keyframes cta-shimmer {
  0%   { background-position: 200% center; }
  100% { background-position: -100% center; }
}
.cta-inline.solid {
  background: var(--fg);
  color: var(--bg);
  border: 1px solid var(--fg);
}
.cta-inline.solid:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: oklch(0.15 0.02 220);
  box-shadow: 0 8px 28px oklch(0.55 0.13 var(--accent-hue) / 0.25);
}
.cta-inline.outline {
  background: oklch(0.25 0.04 var(--accent-hue) / 0.18);
  color: var(--fg);
  border: 1px solid var(--accent-faint);
}
.cta-inline.outline:hover {
  background: oklch(0.55 0.13 var(--accent-hue) / 0.16);
  border-color: var(--accent-dim);
  color: var(--accent);
}
.cta-inline:active { transform: translateY(1px); }
.cta-inline .arr {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 15.5px;
  transition: transform 200ms;
}
.cta-inline:hover .arr { transform: translateX(3px); }

/* ─────── SECTION 6: CTA ─────── */
.s-cta {
  border-top: 1px solid var(--line-soft);
  text-align: center;
  background:
    radial-gradient(ellipse 60% 70% at 50% 60%, oklch(0.4 0.1 var(--accent-hue) / 0.16), transparent 70%);
}
.s-cta h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(44px, 5.5vw, 66px);
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 18px 0 22px;
  color: var(--fg);
  text-wrap: balance;
}
.s-cta h2 em {
  color: var(--accent);
  font-style: italic;
}
.s-cta .sub {
  font-size: 18px;
  line-height: 1.65;
  color: var(--fg-mute);
  max-width: 560px;
  margin: 0 auto 36px;
  text-wrap: pretty;
}

.form {
  display: flex;
  gap: 8px;
  padding: 6px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 14px;
  transition: border-color 200ms, box-shadow 200ms;
  max-width: 520px;
  margin: 0 auto;
  text-align: left;
}
.form:focus-within {
  border-color: var(--accent-dim);
  box-shadow: 0 0 0 4px oklch(0.55 0.13 var(--accent-hue) / 0.12);
}
.form.error {
  border-color: oklch(0.62 0.16 30);
  box-shadow: 0 0 0 4px oklch(0.62 0.16 30 / 0.12);
}
.form input {
  flex: 1;
  background: transparent;
  border: 0;
  outline: none;
  color: var(--fg);
  font: 500 17.5px/1 var(--mono);
  padding: 14px 14px;
  min-width: 0;
}
.form input::placeholder {
  color: var(--fg-faint);
  font-weight: 400;
}
.form button {
  appearance: none;
  border: 0;
  background: var(--fg);
  color: var(--bg);
  font: 600 15.5px/1 var(--sans);
  letter-spacing: -0.005em;
  padding: 0 18px;
  border-radius: 9px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background 150ms, transform 150ms, color 150ms;
  white-space: nowrap;
}
.form button:hover {
  background: var(--accent);
  color: oklch(0.15 0.02 220);
}
.form button:active { transform: translateY(1px); }
.form button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}
.form button .arr {
  font-family: var(--mono);
  font-weight: 500;
  transition: transform 200ms;
}
.form button:hover .arr { transform: translateX(2px); }
.form-error {
  font-family: var(--mono);
  font-size: 13px;
  color: oklch(0.72 0.16 30);
  height: 16px;
  margin-top: 8px;
  text-align: center;
}

.cta-fineprint {
  margin-top: 22px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--fg-dim);
  line-height: 1.6;
  max-width: 440px;
  margin-left: auto;
  margin-right: auto;
}

/* success */
.success {
  max-width: 520px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 26px 26px;
  background: oklch(0.22 0.04 var(--accent-hue) / 0.4);
  border: 1px solid var(--accent-faint);
  border-radius: 14px;
  text-align: left;
  animation: fadeUp 500ms cubic-bezier(0.2, 0.8, 0.2, 1);
}
.success .row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}
.success .check {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--bg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
}
.success h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 28.5px;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--fg);
}
.success p {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  color: var(--fg-mute);
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ─────── FOOTER ─────── */
footer {
  padding: 36px 32px 40px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--fg-faint);
  letter-spacing: 0.02em;
  text-align: center;
  border-top: 1px solid var(--line-soft);
}
footer a { color: inherit; text-decoration: none; }
footer a:visited { color: inherit; }
footer a:hover { color: var(--fg); }
footer .sep { color: var(--fg-faint); margin: 0 8px; }
footer .footer-cleverbit {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
footer .cleverbit-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--fg-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 120ms ease, border-color 120ms ease;
}
footer .cleverbit-link:hover {
  color: var(--fg);
  border-bottom-color: var(--fg-faint);
}
footer .cleverbit-mark {
  width: 14px;
  height: 14px;
  object-fit: contain;
  opacity: 0.85;
  display: block;
}

/* ─────── responsive ─────── */
@media (max-width: 960px) {
  section { padding: 52px 24px; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-copy { max-width: 600px; margin: 0 auto; text-align: center; }
  .hero-sub { margin-left: auto; margin-right: auto; }
  .badges { justify-content: center; }
  .character-wrap { min-height: 320px; }
  .character { width: min(70%, 320px); }
  .hero-session { left: 50%; transform: translateX(-50%); width: min(90%, 320px); bottom: -10px; }
  .panels { grid-template-columns: 1fr; gap: 18px; }
  /* accordion layout on mobile */
  .pillar { display: block; padding: 0; }
  .pillar.flip .pillar-copy { order: 0; }
  .pillar.flip .pillar-visual { order: 0; }
  .pillar-hd {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
    padding: 22px 0;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
  }
  .pillar-hd-text {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 0;
  }
  .pillar-hd-text .pillar-num { margin-bottom: 6px; }
  .pillar-hd-text h3 { font-size: clamp(20px, 5.5vw, 26px); margin-bottom: 0; }
  .pillar-chevron {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 26px;
    height: 26px;
    border: 1px solid var(--line);
    border-radius: 50%;
    color: var(--fg-dim);
    margin-top: 8px;
    transition: transform 350ms ease, border-color 200ms, color 200ms;
  }
  .pillar.open .pillar-chevron {
    transform: rotate(180deg);
    border-color: var(--accent);
    color: var(--accent);
  }
  .pillar-body,
  .pillar-visual {
    overflow: hidden;
    max-height: 0;
    min-height: 0;
    transition: max-height 420ms ease;
  }
  .pillar.open .pillar-body { max-height: 800px; }
  .pillar.open .pillar-visual { max-height: 600px; padding-bottom: 28px; }
  .privacy-blocks { grid-template-columns: 1fr; }
  /* center prose text on mobile */
  .pillar-copy { text-align: center; }
  .pillar p { margin-left: auto; margin-right: auto; }
  .signal { text-align: left; }
  .s-problem p { text-align: center; }
  .s-problem p:last-of-type { text-align: center; }
}
@media (max-width: 520px) {
  .topbar { padding: 14px 18px; font-size: 12px; }
  section { padding: 40px 20px; }
  h1.hero-h { font-size: 40px; }
  .form { flex-direction: column; padding: 8px; max-width: none; }
  .form button { width: 100%; padding: 14px; justify-content: center; }
  .cta-inline-wrap.align-left { justify-content: center; }
  .cta-inline-wrap.align-center { margin: 32px 0 0; }
}

/* ─────── accessibility ─────── */

/* Visually hidden but accessible to screen readers */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Skip-to-content link */
.skip-link {
  position: fixed;
  top: -100%;
  left: 12px;
  z-index: 99999;
  background: var(--bg);
  color: var(--accent);
  padding: 10px 18px;
  font: 600 14px/1 var(--sans);
  text-decoration: none;
  border: 1.5px solid var(--accent);
  border-radius: 0 0 8px 8px;
  transition: top 150ms;
}
.skip-link:focus {
  top: 0;
  outline: none;
}

/* Focus-visible rings on interactive elements */
.cta-inline:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.form button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.form input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
  border-radius: 8px;
}