/* ─────────────────────────────────────────────
   FRONTLINE TO FORECAST — Design System
   ───────────────────────────────────────────── */

:root {
  --ink: #0E0E0C;
  --ink-2: #161613;
  --surface: #1C1C18;
  --paper: #F2EFE8;
  --paper-dim: #C8C5BD;
  --muted: #7A7872;
  --rule: #2A2A25;
  --rule-strong: #3A3A33;
  --signal: #D97534;
  --signal-soft: rgba(217, 117, 52, 0.12);

  --serif: 'Fraunces', Georgia, serif;
  --sans: 'IBM Plex Sans', -apple-system, sans-serif;
  --mono: 'JetBrains Mono', 'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection { background: var(--signal); color: var(--ink); }
a { color: inherit; text-decoration: none; }

/* ── Grain overlay ─────────────────────────── */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
  opacity: 0.04;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='200' height='200' filter='url(%23n)'/></svg>");
}

/* ── Typography ────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.02em;
  font-variation-settings: "opsz" 144, "SOFT" 30;
}

/* ── Layout ────────────────────────────────── */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}

section {
  padding: 120px 0;
  border-bottom: 1px solid var(--rule);
}
section:last-of-type { border-bottom: none; }

/* ── Header ────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(14, 14, 12, 0.78);
  border-bottom: 1px solid var(--rule);
}
.site-header__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 18px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.mark {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper-dim);
}
.mark span { color: var(--signal); }
.site-nav {
  display: flex;
  gap: 32px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper-dim);
}
.site-nav a { transition: color 0.2s ease; }
.site-nav a:hover { color: var(--signal); }
.site-nav a.is-current { color: var(--signal); }

/* ── Common: eyebrows + section numbers ─── */
.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--signal);
  display: inline-flex;
  align-items: center;
  gap: 14px;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--signal);
}
.section-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--muted);
  text-transform: uppercase;
}

/* ── Hero ─────────────────────────────────── */
.hero {
  padding: 140px 0 160px;
  position: relative;
  border-bottom: 1px solid var(--rule);
}
.hero-grid { display: grid; grid-template-columns: 1fr; gap: 64px; }
.hero__eyebrow-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 60px;
}
.hero__meta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--muted);
  text-transform: uppercase;
}
.hero h1 {
  font-size: clamp(56px, 8.8vw, 132px);
  line-height: 0.98;
  letter-spacing: -0.035em;
  max-width: 14ch;
  font-variation-settings: "opsz" 144, "wght" 380, "SOFT" 30;
}
.hero h1 em {
  font-style: italic;
  color: var(--signal);
  font-variation-settings: "opsz" 144, "wght" 380, "SOFT" 50;
}
.hero__sub {
  max-width: 52ch;
  font-size: 19px;
  line-height: 1.55;
  color: var(--paper-dim);
  margin-top: 8px;
}
.hero__divider-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 40px;
  padding-top: 60px;
  border-top: 1px solid var(--rule);
  margin-top: 60px;
}
.hero__caption {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--muted);
  text-transform: uppercase;
  max-width: 28ch;
  line-height: 1.7;
}
.hero__caption strong { color: var(--paper); font-weight: 500; }
.hero-curve { width: 100%; max-width: 460px; height: auto; }

/* ── Two-column section head ─────────────── */
.section-head {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 80px;
  margin-bottom: 80px;
}
.section-head h2 {
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1.02;
  max-width: 18ch;
}
.section-head__sub {
  font-family: var(--serif);
  font-style: italic;
  font-size: 28px;
  color: var(--signal);
  margin-top: 16px;
  font-variation-settings: "opsz" 60, "wght" 400, "SOFT" 50;
}
.section-head p {
  margin-top: 28px;
  font-size: 18px;
  color: var(--paper-dim);
  max-width: 56ch;
  line-height: 1.65;
}

/* ── Gap table (diagnostic contrast) ─────── */
.gap-table {
  display: grid;
  grid-template-columns: 200px 1fr 1fr;
  gap: 0;
  border-top: 1px solid var(--rule-strong);
}
.gap-table > div {
  padding: 28px 24px 28px 0;
  border-bottom: 1px solid var(--rule);
}
.gap-table__head {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  padding-bottom: 18px !important;
  padding-top: 18px !important;
}
.gap-table__head.signal { color: var(--signal); }
.gap-table__rownum {
  font-family: var(--mono);
  color: var(--muted);
  font-size: 13px;
}
.gap-table__col-left {
  color: var(--paper-dim);
  font-size: 17px;
  font-family: var(--serif);
  font-style: italic;
  font-variation-settings: "opsz" 14, "wght" 400, "SOFT" 30;
}
.gap-table__col-right {
  color: var(--paper);
  font-size: 17px;
  font-weight: 400;
}

/* ── Curve viz block ─────────────────────── */
.alt-bg {
  background: var(--ink-2);
  margin: 0 -40px;
  padding: 120px 40px;
}
.alt-bg__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}
.curve-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 100px;
  align-items: center;
}
.curve-text h2 {
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1.02;
  margin: 28px 0 32px;
  max-width: 14ch;
}
.curve-text p {
  font-size: 18px;
  color: var(--paper-dim);
  margin-bottom: 24px;
  line-height: 1.65;
  max-width: 48ch;
}
.pullquote {
  margin: 40px 0 0;
  padding: 28px 0 0;
  border-top: 1px solid var(--rule-strong);
  font-family: var(--serif);
  font-style: italic;
  font-size: 24px;
  color: var(--paper);
  line-height: 1.4;
  max-width: 30ch;
  font-variation-settings: "opsz" 60, "wght" 400, "SOFT" 60;
}
.pullquote::before { content: "—"; color: var(--signal); margin-right: 12px; }
.curve-viz {
  background: var(--ink);
  border: 1px solid var(--rule);
  padding: 40px;
}
.curve-viz svg { width: 100%; height: auto; display: block; }
.curve-legend {
  display: flex; gap: 32px;
  margin-top: 24px; padding-top: 24px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--paper-dim);
}
.curve-legend__item { display: flex; align-items: center; gap: 10px; }
.curve-legend__swatch { width: 18px; height: 2px; }

/* ── Doctrine cards (IRC) ────────────────── */
.doctrine-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.doctrine-card {
  background: var(--ink);
  padding: 48px 40px 56px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  transition: background 0.3s ease;
}
.doctrine-card:hover { background: var(--ink-2); }
.doctrine-card__head {
  display: flex; align-items: baseline; justify-content: space-between;
}
.doctrine-card__num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--muted);
}
.doctrine-card__verb {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--signal);
  text-transform: uppercase;
}
.doctrine-card h3 {
  font-size: 44px;
  line-height: 1;
  letter-spacing: -0.03em;
  font-variation-settings: "opsz" 144, "wght" 380, "SOFT" 30;
}
.doctrine-card__body {
  color: var(--paper-dim);
  font-size: 16px;
  line-height: 1.65;
}
.doctrine-card__operator {
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
}
.doctrine-card__operator-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
  margin-bottom: 10px;
}
.doctrine-card__operator-q {
  font-family: var(--serif);
  font-style: italic;
  font-size: 18px;
  color: var(--paper);
  line-height: 1.4;
  font-variation-settings: "opsz" 36, "wght" 400, "SOFT" 50;
}

/* ── Library / What's Here items ─────────── */
.library-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--rule);
  border-top: 1px solid var(--rule-strong);
}
.library-item {
  background: var(--ink);
  padding: 40px 32px;
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: 32px;
  align-items: start;
  transition: background 0.3s ease;
}
.library-item:hover { background: var(--ink-2); }
.library-item__num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--muted);
  padding-top: 8px;
}
.library-item__title {
  font-family: var(--serif);
  font-size: 28px;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
  font-variation-settings: "opsz" 72, "wght" 420, "SOFT" 30;
}
.library-item__body {
  color: var(--paper-dim);
  font-size: 15px;
  line-height: 1.55;
  max-width: 44ch;
}
.library-item__status {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--signal);
  padding-top: 12px;
  white-space: nowrap;
}
.library-item__status.pending { color: var(--muted); }

/* ── Audience cards (Home: For Leaders / For Sales Pros) ── */
.audience-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.audience-card {
  background: var(--ink);
  padding: 60px 56px 56px;
  display: flex;
  flex-direction: column;
  gap: 32px;
  min-height: 480px;
  transition: background 0.3s ease;
  position: relative;
}
.audience-card:hover { background: var(--ink-2); }
.audience-card__num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--signal);
}
.audience-card h3 {
  font-size: clamp(36px, 4vw, 56px);
  line-height: 1.02;
  letter-spacing: -0.03em;
  max-width: 12ch;
  font-variation-settings: "opsz" 144, "wght" 400, "SOFT" 30;
}
.audience-card h3 em {
  font-style: italic;
  color: var(--signal);
  font-variation-settings: "opsz" 144, "wght" 400, "SOFT" 50;
}
.audience-card__body {
  font-size: 17px;
  color: var(--paper-dim);
  line-height: 1.6;
  max-width: 42ch;
}
.audience-card__cta {
  margin-top: auto;
  padding-top: 28px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--signal);
  display: inline-flex;
  align-items: center;
  gap: 14px;
  transition: gap 0.2s ease;
}
.audience-card:hover .audience-card__cta { gap: 22px; }

/* ── Subscribe block ─────────────────────── */
.subscribe {
  background: var(--ink-2);
  margin: 0 -40px;
  padding: 140px 40px 160px;
  border-bottom: none !important;
}
.subscribe-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}
.subscribe-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 100px;
  align-items: end;
}
.subscribe h2 {
  font-size: clamp(48px, 6.8vw, 96px);
  line-height: 0.98;
  letter-spacing: -0.035em;
  margin-top: 28px;
  max-width: 12ch;
  font-variation-settings: "opsz" 144, "wght" 380, "SOFT" 30;
}
.subscribe h2 em {
  font-style: italic;
  color: var(--signal);
  font-variation-settings: "opsz" 144, "wght" 380, "SOFT" 50;
}
.subscribe__pitch {
  font-size: 19px;
  color: var(--paper-dim);
  line-height: 1.55;
  max-width: 44ch;
  margin-top: 24px;
}
.subscribe__terms {
  margin-top: 28px;
  display: flex;
  gap: 32px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.subscribe__terms span { color: var(--paper); }
.subscribe-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.subscribe-form__label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--signal);
}
.subscribe-form__row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0;
  border-bottom: 1px solid var(--rule-strong);
  padding-bottom: 8px;
  transition: border-color 0.2s ease;
}
.subscribe-form__row:focus-within { border-color: var(--signal); }
.subscribe-form input[type="email"] {
  background: transparent;
  border: none;
  outline: none;
  color: var(--paper);
  font-family: var(--sans);
  font-size: 20px;
  padding: 14px 0;
  font-weight: 300;
}
.subscribe-form input::placeholder { color: var(--muted); }
.subscribe-form button {
  background: transparent;
  border: none;
  color: var(--signal);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 14px 8px;
  transition: transform 0.2s ease, color 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.subscribe-form button:hover { color: var(--paper); transform: translateX(4px); }
.subscribe-form__fine {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 12px;
}

/* ── Coaching note ───────────────────────── */
.coaching-note {
  margin-top: 80px;
  padding-top: 40px;
  border-top: 1px solid var(--rule);
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 80px;
  align-items: baseline;
}
.coaching-note__label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--signal);
}
.coaching-note p {
  font-family: var(--serif);
  font-style: italic;
  font-size: 22px;
  color: var(--paper);
  line-height: 1.45;
  max-width: 52ch;
  font-variation-settings: "opsz" 60, "wght" 400, "SOFT" 50;
}

/* ── Footer ──────────────────────────────── */
footer {
  padding: 48px 0 60px;
  border-top: 1px solid var(--rule);
}
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.footer-inner a:hover { color: var(--signal); }

/* ── Reveal animations ───────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}
.reveal.is-in { opacity: 1; transform: translateY(0); }

/* ── Responsive ──────────────────────────── */
@media (max-width: 960px) {
  .container,
  .site-header__inner,
  .footer-inner,
  .alt-bg__inner,
  .subscribe-inner { padding-left: 24px; padding-right: 24px; }

  .section-head,
  .coaching-note { grid-template-columns: 1fr; gap: 32px; }

  .gap-table { grid-template-columns: 60px 1fr; }
  .gap-table__col-right { display: none; }
  .gap-table__head:nth-child(3) { display: none; }

  .curve-grid,
  .subscribe-grid { grid-template-columns: 1fr; gap: 56px; }

  .doctrine-grid,
  .audience-grid { grid-template-columns: 1fr; }

  .library-grid { grid-template-columns: 1fr; }
  .library-item { grid-template-columns: 48px 1fr; }
  .library-item__status { grid-column: 2; padding-top: 8px; }

  section { padding: 72px 0; }
  .hero { padding: 80px 0 100px; }
  .hero__divider-row { grid-template-columns: 1fr; gap: 32px; }

  .alt-bg, .subscribe { margin: 0 -24px; padding-left: 24px; padding-right: 24px; }
  .site-nav { display: none; }

  .audience-card { padding: 40px 28px 36px; min-height: auto; }
}