/* ============================================================
   nuun.dev — Revenue Systems site (Direction D)
   Mobile-first. Bone / mint / black. Anton + Inter + JetBrains Mono.
   Motifs: mint annotations, findings cards, big mint stats.
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }

:root {
  --mint: #86C8A1;
  --mint-deep: #5DA57C;
  --black: #0A0A0A;
  --ink: #1A1A1A;
  --graphite: #2B2B2B;
  --bone: #F6F4EF;
  --white: #FFFFFF;
  --line: #E6E3DC;
  --muted: #6B6B6B;
  --soft: #A0A0A0;
  --dark-text: #D9D6CF;
  --dark-muted: #B8B4A9;
  --display: "Anton", "Impact", "Arial Black", sans-serif;
  --body: "Inter", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --pad: 20px;
  --max: 680px;      /* single column reading width */
  --max-wide: 1100px;
}

html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.5;
  color: var(--black);
  background: var(--bone);
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--mint); color: var(--black); }

/* ---------- Type utilities ---------- */
.h-display {
  font-family: var(--display);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  line-height: 0.92;
  margin: 0;
}
.eyebrow {
  font: 600 11px/1.4 var(--body);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 20px;
}
.eyebrow::before { content: ''; width: 8px; height: 8px; background: var(--mint); flex-shrink: 0; }
.annotation {
  font-size: 14px; line-height: 1.55; color: var(--muted);
  border-left: 2px solid var(--mint);
  padding-left: 12px;
}

/* ---------- Layout ---------- */
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); }
.wrap-wide { max-width: var(--max-wide); margin: 0 auto; padding: 0 var(--pad); }
.section { padding: 72px 0; }
.two-col { display: block; }
.fix-duo, .scope-duo, .hero-grid, .footer__grid { display: block; }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(246, 244, 239, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px var(--pad);
  max-width: var(--max-wide); margin: 0 auto;
}
.nav__logo img { width: 42px; height: 42px; }
.nav__right { display: flex; align-items: center; gap: 14px; }
.nav__cta {
  background: var(--black); color: var(--bone);
  font: 600 11px/1 var(--body); letter-spacing: 0.08em; text-transform: uppercase;
  padding: 12px 16px;
  transition: background 160ms var(--ease);
}
.nav__cta:hover { background: var(--mint-deep); color: var(--black); }
.nav__burger {
  display: flex; flex-direction: column; justify-content: center; gap: 5px;
  width: 28px; height: 28px; cursor: pointer;
  background: none; border: 0; padding: 0;
}
.nav__burger span { display: block; height: 2px; background: var(--black); transition: all 200ms var(--ease); }
.nav__burger span:nth-child(2) { width: 70%; }
.nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Nav inline links (desktop only) */
.nav__links { display: none; }

/* Menu drawer */
.menu {
  display: none;
  border-bottom: 1px solid var(--line);
  background: var(--bone);
}
.menu.open { display: block; }
.menu ul {
  list-style: none; margin: 0; padding: 8px var(--pad) 16px;
  max-width: var(--max-wide); margin: 0 auto;
}
.menu a {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 4px;
  border-bottom: 1px solid var(--line);
  font: 600 14px/1 var(--body);
  letter-spacing: 0.04em; text-transform: uppercase;
}
.menu li:last-child a { border-bottom: 0; }
.menu a .no { font: 500 11px/1 var(--mono); color: var(--mint-deep); }
.menu a:hover { color: var(--mint-deep); }

/* ---------- Hero ---------- */
.hero-sec { padding: 56px 0 48px; }
.hero-sec h1 { font-size: clamp(58px, 16vw, 92px); margin-bottom: 24px; }
.hero-sec h1 em {
  font-style: normal; background: var(--mint); padding: 0 10px; display: inline-block;
}
.hero-sec .sub { font-size: 16px; line-height: 1.6; color: var(--ink); margin: 0 0 16px; max-width: 54ch; }
.hero-sec .annotation { margin: 0 0 32px; max-width: 46ch; }

/* CTA block (reused) */
.cta-block { margin: 0; }
.btn-primary {
  display: block; width: 100%;
  background: var(--black); color: var(--bone);
  font: 600 15px/1.3 var(--body); letter-spacing: 0.05em; text-transform: uppercase;
  padding: 20px; text-align: center;
  border: 0; cursor: pointer;
  transition: background 160ms var(--ease);
}
.btn-primary:hover { background: var(--mint-deep); color: var(--black); }
.cta-under {
  font-size: 12px; line-height: 1.6; color: var(--muted);
  margin: 10px 0 0;
}

/* ---------- Video ---------- */
.video-sec { padding: 0 0 72px; }
.video-frame {
  position: relative; width: 100%; aspect-ratio: 16 / 9;
  background: var(--black);
  border: 1px solid var(--line);
}
.video-frame iframe {
  position: absolute; inset: 0; width: 100%; height: 100%; border: 0;
}
.video-cap {
  font-size: 13px; line-height: 1.6; color: var(--muted); margin: 12px 0 0;
}
@media (min-width: 1024px) {
  .video-sec { padding: 0 0 104px; }
  .video-sec .video-wrap { max-width: 860px; margin: 0 auto; }
}

/* ---------- Dark sections ---------- */
.dark {
  background: var(--black); color: var(--bone);
}
.dark .eyebrow { color: var(--mint); }
.dark h2 { color: var(--bone); }

/* Quote chips */
.chip {
  border: 1px solid var(--graphite);
  padding: 14px 16px; margin-bottom: 10px;
  font-size: 14px; line-height: 1.5; color: var(--dark-text);
}
.chip::before { content: '\201C '; color: var(--mint); font-family: var(--display); }

/* Big mint stat */
.stat { border-top: 1px solid var(--graphite); margin-top: 28px; padding-top: 28px; }
.stat .big {
  font-family: var(--display); font-size: clamp(64px, 18vw, 96px); line-height: 1;
  color: var(--mint); margin-bottom: 10px;
}
.stat .cap { font-size: 14px; line-height: 1.55; color: var(--dark-muted); max-width: 340px; margin: 0; }

/* ---------- Findings card ---------- */
.findings {
  border: 1px solid var(--line); background: var(--white);
  margin-top: 32px;
}
.findings__rule {
  display: flex; justify-content: space-between;
  padding: 10px 16px; border-bottom: 1px solid var(--line);
  font: 500 10px/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted);
}
.finding {
  display: grid; grid-template-columns: 46px 1fr; gap: 10px;
  padding: 15px 16px; border-bottom: 1px solid #EFECE4;
  font-size: 14px; line-height: 1.55; color: var(--ink);
}
.finding:last-child { border-bottom: 0; }
.finding .no { font: 700 11px/1.4 var(--mono); color: var(--mint-deep); }
.finding b { font-weight: 600; }
.findings.on-dark { border-color: var(--graphite); background: var(--ink); }
.findings.on-dark .findings__rule { border-color: var(--graphite); color: var(--soft); }
.findings.on-dark .finding { border-color: var(--graphite); color: var(--dark-text); }
.findings.on-dark .finding .no { color: var(--mint); }

/* ---------- Section headline scale ---------- */
.section h2.h-display { font-size: clamp(34px, 9vw, 56px); margin-bottom: 20px; }
.section .lead { font-size: 16px; line-height: 1.6; color: var(--ink); margin: 0 0 16px; max-width: 56ch; }
.section .lead.stack { line-height: 1.7; margin-bottom: 24px; }
.section .kicker {
  font-family: var(--display); text-transform: uppercase;
  font-size: clamp(22px, 6vw, 32px); line-height: 1.05;
  margin: 28px 0 0; letter-spacing: 0;
}
.section .kicker .accent { background: var(--mint); padding: 0 8px; display: inline-block; }
.dark .kicker .accent { color: var(--black); }

/* ---------- Patch cards ---------- */
.patches { margin-top: 28px; display: grid; gap: 10px; }
.patch {
  border: 1px solid var(--line); background: var(--white);
  padding: 18px;
  color: var(--ink);
}
.patch h3 {
  font: 600 15px/1.3 var(--body); margin: 0 0 6px; text-transform: none;
  color: var(--black);
}
.patch p { margin: 0; font-size: 14px; line-height: 1.55; color: var(--muted); }
.patch .overheard {
  font-size: 13px; color: var(--muted); font-style: italic;
}

/* ---------- Architecture pillars ---------- */
.pillars { display: grid; gap: 10px; margin-top: 28px; }
.pillar {
  border: 1px solid var(--graphite); background: var(--ink);
  padding: 20px;
}
.pillar h3 {
  font-family: var(--display); font-weight: 400; font-size: 22px;
  text-transform: uppercase; margin: 0 0 8px; color: var(--bone);
  letter-spacing: 0;
}
.pillar h3 .tick { color: var(--mint); }
.pillar p { margin: 0; font-size: 14px; line-height: 1.55; color: var(--dark-muted); }

/* Dial block */
.dial {
  background: var(--mint); color: var(--black);
  padding: 28px 20px; margin-top: 32px;
}
.dial h3 {
  font-family: var(--display); font-weight: 400; text-transform: uppercase;
  font-size: clamp(28px, 8vw, 40px); line-height: 0.95; margin: 0 0 14px;
}
.dial p { margin: 0 0 12px; font-size: 15px; line-height: 1.6; }
.dial p:last-child { margin: 0; }

/* Secondary CTA (roadmap) */
.btn-secondary {
  display: block; width: 100%;
  background: transparent; color: var(--bone);
  border: 1px solid var(--bone);
  font: 600 14px/1.3 var(--body); letter-spacing: 0.05em; text-transform: uppercase;
  padding: 18px; text-align: center; cursor: pointer;
  transition: background 160ms var(--ease), color 160ms var(--ease);
  margin-top: 24px;
}
.btn-secondary:hover { background: var(--bone); color: var(--black); }

/* ---------- Why me ---------- */
.pullquote {
  font-family: var(--display); text-transform: uppercase;
  font-size: clamp(24px, 6.4vw, 34px); line-height: 1.08;
  margin: 28px 0 0; padding: 24px 20px;
  border: 1px solid var(--line); background: var(--white);
}
.pullquote .accent { color: var(--mint-deep); }

/* ---------- Proof ---------- */
.proof-badge {
  display: flex; align-items: center; gap: 12px;
  border: 1px solid var(--line); background: var(--white);
  padding: 16px; margin-bottom: 10px;
  transition: border-color 160ms var(--ease);
}
.proof-badge:hover { border-color: var(--mint-deep); }
@media (min-width: 760px) { .proof-badge { display: inline-flex; } }
.proof-badge .stars { color: var(--mint-deep); font-size: 18px; letter-spacing: 2px; }
.proof-badge .label { font-size: 13px; color: var(--muted); }
.testimonials { display: grid; gap: 10px; }
.testimonial {
  border: 1px solid var(--line); background: var(--white); padding: 18px;
}
.testimonial .quote { font-size: 14px; line-height: 1.6; margin: 0 0 12px; color: var(--ink); }
.testimonial .who { font: 500 11px/1.4 var(--mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }

/* Client marquee */
.marquee {
  overflow: hidden; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  padding: 18px 0; margin-top: 28px;
  background: var(--white);
}
.marquee__track {
  display: flex; gap: 40px; white-space: nowrap; width: max-content;
  animation: marquee 36s linear infinite;
}
.marquee__item {
  display: inline-flex; align-items: center; gap: 40px;
  font-family: var(--display); font-size: 20px; text-transform: uppercase;
  color: var(--soft); letter-spacing: 0.02em;
}
.marquee__item .dot { width: 6px; height: 6px; background: var(--mint); border-radius: 50%; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) {
  .marquee__track { animation: none; }
}

/* ---------- Offer ---------- */
.offer .lead b { font-weight: 600; }
.objections { display: grid; gap: 10px; margin: 24px 0 0; }
.objection {
  font-size: 14px; line-height: 1.55; color: var(--ink);
  border-left: 2px solid var(--mint); padding-left: 12px;
}
.objection b { font-weight: 600; }

.house-label {
  font: 600 11px/1.4 var(--body); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--muted); margin: 28px 0 10px;
}

/* Steps */
.steps { display: grid; gap: 0; margin-top: 28px; border: 1px solid var(--line); background: var(--white); }
.step {
  display: grid; grid-template-columns: 46px 1fr; gap: 10px;
  padding: 18px 16px; border-bottom: 1px solid #EFECE4;
}
.step:last-child { border-bottom: 0; }
.step .no {
  font-family: var(--display); font-size: 24px; color: var(--mint-deep); line-height: 1;
}
.step h3 { font: 600 15px/1.3 var(--body); margin: 0 0 4px; }
.step p { margin: 0; font-size: 14px; line-height: 1.55; color: var(--muted); }

.response-promise {
  margin-top: 24px;
  font-size: 13px; line-height: 1.6; color: var(--ink);
  border-left: 2px solid var(--mint); padding-left: 12px;
}
.pricing-anchor {
  font-size: 12px; line-height: 1.6; color: var(--muted); margin-top: 16px;
}
.pricing-anchor a { text-decoration: underline; text-underline-offset: 2px; }
.pricing-anchor a:hover { color: var(--mint-deep); }

/* Final CTA banner */
.final-cta { padding: 72px 0 80px; }
.final-cta h2 {
  font-size: clamp(40px, 11vw, 64px); margin-bottom: 28px; color: var(--bone);
}
.final-cta h2 .accent { background: var(--mint); color: var(--black); padding: 0 10px; display: inline-block; }

/* ---------- Footer ---------- */
.footer {
  background: var(--black); color: var(--bone);
  padding: 48px 0 24px;
  border-top: 1px solid var(--graphite);
}
.footer .wordmark {
  font-family: var(--display); font-size: clamp(48px, 13vw, 72px); line-height: 0.9;
  text-transform: uppercase; margin: 0 0 8px;
}
.footer .tagline { font-size: 13px; color: var(--dark-muted); margin: 0 0 32px; }
.footer .links { display: grid; gap: 2px; margin-bottom: 32px; }
.footer .links a {
  padding: 10px 0; border-bottom: 1px solid var(--graphite);
  font-size: 14px; display: flex; justify-content: space-between; align-items: center;
}
.footer .links a::after { content: '\2192'; color: var(--mint); }
.footer .links a:hover { color: var(--mint); }
.footer .legal {
  font-size: 11px; color: var(--soft); line-height: 1.7;
  display: flex; flex-direction: column; gap: 2px;
}

/* ---------- Reveal on scroll (subtle, JS-gated) ---------- */
/* Hidden state only applies when JS has confirmed IO support via .js-reveal */
.js-reveal .reveal { opacity: 0; transform: translateY(16px); transition: opacity 600ms var(--ease), transform 600ms var(--ease); }
.js-reveal .reveal.in { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .js-reveal .reveal { opacity: 1; transform: none; transition: none; }
}

/* ============================================================
   Tablet (min-width: 760px)
   ============================================================ */
@media (min-width: 760px) {
  :root { --pad: 32px; }
  .section { padding: 104px 0; }
  .hero-sec { padding: 96px 0 80px; }
  .hero-sec h1 { font-size: clamp(92px, 11vw, 168px); }
  .btn-primary { width: auto; padding: 20px 36px; display: inline-block; }
  .btn-secondary { width: auto; padding: 18px 32px; display: inline-block; }

  .patches { grid-template-columns: 1fr 1fr; }
  .patches .patch:last-child { grid-column: span 2; }
  .pillars { grid-template-columns: repeat(3, 1fr); }
  .testimonials { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .step { border-bottom: 0; border-right: 1px solid #EFECE4; }
  .step:last-child { border-right: 0; }
  .menu ul { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0 32px; }
  .menu a { font-size: 13px; }
  .section h2.h-display { font-size: clamp(44px, 5.5vw, 72px); max-width: 20ch; }
  .hero-sec .cta-block .btn-primary { display: block; text-align: center; }
}

/* ============================================================
   Desktop (min-width: 1024px)
   ============================================================ */
@media (min-width: 1024px) {
  .nav__inner { padding: 12px var(--pad); }
  .nav__links {
    display: flex; align-items: center; gap: 24px;
    margin-right: 10px;
  }
  .nav__links a {
    font: 600 12px/1 var(--body); letter-spacing: 0.06em; text-transform: uppercase;
    padding: 6px 0;
    border-bottom: 2px solid transparent;
    transition: border-color 160ms var(--ease), color 160ms var(--ease);
  }
  .nav__links a:hover { border-bottom-color: var(--mint); }
  .nav__burger { display: none; }

  .hero-grid {
    display: grid; grid-template-columns: 1.4fr 1fr; gap: 64px;
    align-items: end; margin-top: 8px;
  }
  .hero-grid .cta-block { max-width: none; }
  .hero-grid .annotation { margin-bottom: 0; }

  .two-col {
    display: grid; grid-template-columns: 1fr 1fr; gap: 64px;
    align-items: start; margin-top: 8px;
  }
  .fix-duo {
    display: grid; grid-template-columns: 1.2fr 1fr; gap: 64px;
    align-items: start; margin-top: 8px;
  }
  .fix-duo .dial { margin-top: 32px; }
  .scope-duo {
    display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
    align-items: start;
  }
  .footer__grid {
    display: grid; grid-template-columns: 1.4fr 1fr; gap: 64px;
    align-items: start;
  }
  .footer__grid .links { margin-bottom: 0; }
  .footer .legal {
    flex-direction: row; justify-content: space-between;
    border-top: 1px solid var(--graphite);
    margin-top: 40px; padding-top: 20px;
  }

  .kicker { max-width: 24ch; }
  .pullquote { max-width: 720px; }
  .marquee { margin-top: 48px; }
}

/* ============================================================
   Wide desktop (min-width: 1440px)
   ============================================================ */
@media (min-width: 1440px) {
  :root { --max-wide: 1280px; }
  .hero-sec h1 { font-size: 180px; }
}