/* ============================================================
   Grenney.AI — Atlas 03 design system
   Palette: Vacuum / Forest / Signal / Frost / Slate
   Type:    Space Grotesk (display + body) + IBM Plex Mono (labels)
   ============================================================ */

:root {
  /* Atlas 03 palette */
  --vacuum:       #070908;
  --forest:       #10261A;
  --forest-deep:  #0B1A12;
  --signal:       #9BFF9B;
  --signal-deep:  #6FCC6F;
  --frost:        #EAF3EC;
  --slate:        #7E8A82;
  --hairline:        rgba(155, 255, 155, 0.20);
  --hairline-soft:   rgba(234, 243, 236, 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--vacuum); }

body {
  margin: 0;
  font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--frost);
  background: var(--vacuum);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  color: var(--frost);
  letter-spacing: -0.025em;
  margin: 0;
}

p { margin: 0 0 1.1em; color: var(--frost); }
a { color: var(--signal); text-decoration: none; transition: color 0.15s ease; }
a:hover { color: var(--frost); }

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 32px;
}
.container--narrow { max-width: 760px; }

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 9, 8, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--hairline-soft);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
  max-width: 1120px;
  margin: 0 auto;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 400;
  font-size: 21px;
  color: var(--frost);
  letter-spacing: -0.02em;
  text-transform: lowercase;
  line-height: 1;
}
a.brand { color: var(--frost); }
a.brand:hover { color: var(--frost); }
.brand__glyph {
  width: 28px;
  height: 28px;
  display: block;
  flex-shrink: 0;
}
.brand__wordmark {
  display: inline-flex;
  align-items: baseline;
}
.brand__dot {
  color: var(--signal);
  font-weight: 500;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 500;
  font-size: 12px;
  padding: 13px 22px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  border-radius: 0;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
}
.btn--primary {
  background: var(--signal);
  color: var(--vacuum);
}
.btn--primary:hover {
  background: var(--frost);
  color: var(--vacuum);
  transform: translateY(-1px);
}
.btn--ghost {
  background: transparent;
  color: var(--signal);
  border-color: var(--signal);
}
.btn--ghost:hover {
  background: var(--signal);
  color: var(--vacuum);
}
.btn--lg {
  font-size: 13px;
  padding: 16px 28px;
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  padding: 120px 0 100px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 70% 50% at 50% 0%, rgba(155, 255, 155, 0.05), transparent 60%),
    var(--vacuum);
}
.hero__globe {
  position: absolute;
  right: -220px;
  top: 50%;
  transform: translateY(-50%);
  width: 820px;
  height: 820px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.85;
}
.hero .container {
  position: relative;
  z-index: 1;
}
.hero h1,
.hero__sub,
.hero__cta {
  max-width: 620px;
}
.eyebrow {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 32px;
}
.hero h1 {
  font-size: clamp(38px, 5.4vw, 64px);
  line-height: 1.04;
  max-width: 22ch;
  margin-bottom: 28px;
  letter-spacing: -0.03em;
  color: var(--frost);
}
.hero__sub {
  font-size: clamp(17px, 1.6vw, 19px);
  line-height: 1.55;
  color: var(--slate);
  max-width: 62ch;
  margin-bottom: 36px;
}
.hero__cta {
  display: flex;
  gap: 18px;
  align-items: center;
  flex-wrap: wrap;
}
.hero__cta-note {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate);
}
.hero__cta-note:hover { color: var(--signal); }

/* ============================================================
   Section base
   ============================================================ */
section { padding: 88px 0; }
.section__eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 18px;
  display: inline-block;
}
.section__title {
  font-size: clamp(30px, 3.8vw, 42px);
  line-height: 1.1;
  margin-bottom: 18px;
  max-width: 24ch;
  letter-spacing: -0.025em;
  color: var(--frost);
}
.section__lede {
  font-size: 18px;
  line-height: 1.55;
  color: var(--slate);
  max-width: 62ch;
  margin-bottom: 0;
}

/* ============================================================
   Shift section
   ============================================================ */
.shift {
  background: var(--vacuum);
  border-top: 1px solid var(--hairline-soft);
}
.shift__body { margin-top: 32px; }
.shift__body p { color: var(--frost); }
.shift__body p strong { color: var(--signal); font-weight: 500; }

/* ============================================================
   Outcomes — bordered grid lattice
   ============================================================ */
.outcomes {
  background: var(--vacuum);
  border-top: 1px solid var(--hairline-soft);
}
.outcomes__intro { max-width: 760px; margin-bottom: 56px; }
.outcomes__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--hairline-soft);
  border-left: 1px solid var(--hairline-soft);
}
.outcome {
  padding: 32px 28px;
  background: transparent;
  border-right: 1px solid var(--hairline-soft);
  border-bottom: 1px solid var(--hairline-soft);
  position: relative;
  transition: background 0.2s ease;
}
.outcome:hover { background: rgba(155, 255, 155, 0.03); }
.outcome__num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  color: var(--signal);
  letter-spacing: 0.16em;
  margin-bottom: 16px;
}
.outcome__title {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  font-size: 19px;
  color: var(--frost);
  line-height: 1.25;
  margin-bottom: 12px;
  letter-spacing: -0.015em;
}
.outcome__desc {
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--slate);
  margin: 0;
}

/* ============================================================
   Methodology
   ============================================================ */
.method {
  background: var(--vacuum);
  border-top: 1px solid var(--hairline-soft);
  border-bottom: 1px solid var(--hairline-soft);
}
.method__intro {
  max-width: 760px;
  margin-bottom: 56px;
}
.method__steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.step {
  background: var(--forest);
  border-radius: 0;
  padding: 36px 32px;
  border: 1px solid var(--hairline-soft);
  position: relative;
}
.step__num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  color: var(--signal);
  letter-spacing: 0.16em;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.step__title {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  font-size: 22px;
  line-height: 1.2;
  margin-bottom: 14px;
  color: var(--frost);
  letter-spacing: -0.015em;
}
.step__desc {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--frost);
  margin: 0;
}
.step__desc strong { color: var(--signal); font-weight: 500; }
.step__phase {
  display: block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate);
  margin-top: 4px;
}
.step--featured {
  grid-column: 1 / -1;
  background: var(--signal);
  color: var(--vacuum);
  border-color: var(--signal);
}
.step--featured .step__num { color: var(--vacuum); }
.step--featured .step__phase { color: rgba(7, 9, 8, 0.6); }
.step--featured .step__title { color: var(--vacuum); }
.step--featured .step__desc { color: rgba(7, 9, 8, 0.88); }
.step--featured .step__desc strong { color: var(--vacuum); font-weight: 600; }

.method__break {
  grid-column: 1 / -1;
  padding: 32px 0 14px;
  text-align: center;
  margin-top: 10px;
}
.method__break-eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 10px;
}
.method__break-title {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  font-size: 22px;
  color: var(--frost);
  max-width: 44ch;
  margin: 0 auto;
  line-height: 1.3;
  letter-spacing: -0.015em;
}

/* ============================================================
   About
   ============================================================ */
.about {
  background: var(--forest);
  color: var(--frost);
  border-top: 1px solid var(--hairline-soft);
  border-bottom: 1px solid var(--hairline-soft);
}
.about h2 { color: var(--frost); }
.about .section__eyebrow { color: var(--signal); }
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 56px;
  margin-top: 40px;
  align-items: start;
}
.about__name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 28px;
  font-weight: 500;
  color: var(--frost);
  margin-bottom: 6px;
  letter-spacing: -0.025em;
}
.about__title {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--signal);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.about__body p {
  color: var(--frost);
  font-size: 16.5px;
  line-height: 1.65;
}
.about__body p strong { color: var(--signal); font-weight: 500; }
.credentials {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: grid;
  gap: 10px;
}
.credentials li {
  font-size: 14.5px;
  color: var(--frost);
  padding-left: 22px;
  position: relative;
}
.credentials li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--signal);
  font-family: 'IBM Plex Mono', monospace;
}

/* ============================================================
   Case study
   ============================================================ */
.case-study {
  background: var(--vacuum);
  border-top: 1px solid var(--hairline-soft);
  border-bottom: 1px solid var(--hairline-soft);
}
.case-study__intro {
  max-width: 880px;
  margin-bottom: 40px;
}
.case-study__intro .section__title { max-width: none; white-space: nowrap; }
@media (max-width: 720px) {
  .case-study__intro .section__title { white-space: normal; }
}
.case-study__video {
  position: relative;
  width: 100%;
  max-width: 880px;
  margin: 0 auto;
  padding-top: 56.45%;
  border: 1px solid var(--hairline);
  overflow: hidden;
  background: #000;
}
.case-study__video iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.case-study__caption {
  max-width: 880px;
  margin: 18px auto 0;
  text-align: center;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--slate);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ============================================================
   Engagement model
   ============================================================ */
.engagement {
  background: var(--vacuum);
  border-top: 1px solid var(--hairline-soft);
}
.engagement__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin-top: 48px;
  border-top: 1px solid var(--hairline-soft);
  border-left: 1px solid var(--hairline-soft);
  border-right: 1px solid var(--hairline-soft);
}
.engagement__card {
  padding: 36px 32px;
  border-right: 1px solid var(--hairline-soft);
  border-bottom: 1px solid var(--hairline-soft);
}
.engagement__card:last-child { border-right: none; }
.engagement__card--is {
  background: var(--forest);
}
.engagement__card--isnt {
  background: transparent;
}
.engagement__card h3 {
  font-size: 14px;
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.tag {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 0;
}
.tag--is {
  background: var(--signal);
  color: var(--vacuum);
}
.tag--isnt {
  background: transparent;
  color: var(--slate);
  border: 1px solid var(--slate);
}
.engagement__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 14px;
}
.engagement__list li {
  font-size: 15px;
  line-height: 1.55;
  padding-left: 22px;
  position: relative;
  color: var(--frost);
}
.engagement__list li::before {
  content: "+";
  position: absolute;
  left: 4px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 15px;
  line-height: 1.55;
  color: var(--signal);
  top: 0;
}
.engagement__card--isnt .engagement__list li { color: var(--slate); }
.engagement__card--isnt .engagement__list li::before {
  content: "−";
  color: var(--slate);
}

/* ============================================================
   Final CTA
   ============================================================ */
.cta {
  padding: 104px 0 96px;
  background: var(--forest);
  border-top: 1px solid var(--hairline-soft);
  text-align: center;
}
.cta h2 {
  font-size: clamp(32px, 4vw, 46px);
  line-height: 1.1;
  max-width: 26ch;
  margin: 0 auto 20px;
  color: var(--frost);
  letter-spacing: -0.025em;
}
.cta p {
  font-size: 17px;
  color: var(--slate);
  max-width: 58ch;
  margin: 0 auto 32px;
}

/* ============================================================
   Footer
   ============================================================ */
footer {
  background: var(--forest-deep);
  color: var(--slate);
  padding: 40px 0;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  border-top: 1px solid var(--hairline-soft);
}
.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer__brand {
  color: var(--frost);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  letter-spacing: -0.01em;
  text-transform: lowercase;
}
.footer__brand span { color: var(--signal); }
.footer__links { display: flex; gap: 24px; }
.footer__links a { color: var(--slate); }
.footer__links a:hover { color: var(--signal); }

/* ============================================================
   Diagram (12-pillar marketing operating model)
   ============================================================ */
.diagram {
  background: var(--forest);
  border: 1px solid var(--hairline);
  border-radius: 0;
  padding: 32px 28px;
}
.diagram__caption {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--signal);
  text-align: center;
  margin-bottom: 4px;
}
.diagram__subcaption {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--slate);
  text-align: center;
  margin-bottom: 22px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.diagram__label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate);
  text-align: center;
  margin-bottom: 14px;
}
.pillar-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 6px;
  margin-bottom: 6px;
}
.pillar-row--four {
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.pillar {
  background: var(--vacuum);
  color: var(--frost);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 9.5px;
  font-weight: 500;
  padding: 10px 6px;
  text-align: center;
  border: 1px solid var(--hairline);
  border-radius: 0;
  line-height: 1.2;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.sub-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 6px;
}
.sub-row--four {
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.sub-col {
  display: flex;
  flex-direction: column;
  gap: 4px;
  justify-content: center;
}
.sub-cell {
  background: transparent;
  color: var(--frost);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 9.5px;
  padding: 6px 4px;
  text-align: center;
  border: 1px solid var(--hairline-soft);
  border-radius: 0;
  line-height: 1.3;
  min-height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.diagram__arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 22px 0;
  color: var(--signal);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  gap: 12px;
}
.diagram__arrow svg { flex-shrink: 0; }
.ai-layer {
  margin-top: 8px;
  background: var(--signal);
  color: var(--vacuum);
  text-align: center;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  padding: 11px;
  border-radius: 0;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 880px) {
  section { padding: 64px 0; }
  .hero { padding: 72px 0 64px; }
  .hero__globe {
    right: -240px;
    width: 560px;
    height: 560px;
    opacity: 0.25;
  }
  .method__steps { grid-template-columns: 1fr; gap: 18px; }
  .outcomes__grid { grid-template-columns: 1fr 1fr; }
  .about__grid { grid-template-columns: 1fr; gap: 32px; }
  .engagement__grid { grid-template-columns: 1fr; }
  .engagement__card { border-right: none; }
  .container { padding: 0 22px; }
  .site-header__inner { padding: 14px 22px; }
  .hero h1 { font-size: 40px; }
  .pillar { font-size: 8.5px; padding: 8px 3px; }
  .sub-cell { font-size: 8px; padding: 6px 2px; }
}

@media (max-width: 560px) {
  .site-header .btn { font-size: 10px; padding: 10px 14px; letter-spacing: 0.08em; }
  .brand { font-size: 18px; gap: 8px; }
  .brand__glyph { width: 24px; height: 24px; }
  .hero h1 { font-size: 32px; }
  .hero__sub { font-size: 16px; }
  .hero__globe { width: 460px; height: 460px; right: -260px; opacity: 0.18; }
  .step { padding: 28px 24px; }
  .outcomes__grid { grid-template-columns: 1fr; }
  .pillar { font-size: 7.5px; }
  .sub-cell { display: none; }
  .sub-col .sub-cell:first-child { display: block; }
}