/* ==========================================================================
   CopperTeams — EOS Implementer Landing Page (Prototype)
   Design system: "element tile" motif borrowed from the Ct logo (a periodic-
   table tile). Small square tiles with a rule + label are reused across the
   credibility strip and evidence stats to keep a scientific, non-generic
   visual signature tied to the brand's own logo concept — not decoration.
   ========================================================================== */

/* -------------------------------- Tokens -------------------------------- */
:root {
  /* Brand colors — locked to Brand Guide v2.0 */
  --teal: #008080;         /* Copper Teal — primary */
  --arrow-green: #00b9bc;  /* Accent */
  --deep-black: #0d0d0d;
  --white: #ffffff;
  --dark-slate: #4f5857;
  --light-stone: #b6b5b7;
  --signal-red: #e20b2b;   /* Data ink only — never decorative */

  /* Derived surface tones (tints of locked colors only) */
  --teal-050: #eaf4f4;
  --teal-100: #d8ecec;
  --teal-900: #063f3f;
  --arrow-green-050: #e3f8f8;
  --arrow-green-100: #c8f0f1;
  --black-800: #171717;
  --stone-050: #f6f6f5;
  --hairline: #e2e2e0;

  /* Type */
  --font-display: 'Lato', -apple-system, Segoe UI, sans-serif;
  --font-body: 'Lato', -apple-system, Segoe UI, sans-serif;
  --font-mono-ish: 'Lato', 'Courier New', monospace; /* utility / data labels */

  /* Scale */
  --step-caption: 0.8125rem;
  --step-body: 1.0625rem;
  --step-lead: 1.25rem;
  --step-h3: 1.5rem;
  --step-h2: 2.25rem;
  --step-h1: clamp(2.25rem, 4.5vw, 3.75rem);

  /* Layout */
  --content-max: 1180px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --radius-tile: 4px;
  --radius-card: 10px;
  --focus-ring: 3px solid var(--arrow-green);
}

/* -------------------------------- Reset ---------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: var(--step-body);
  line-height: 1.6;
  color: var(--deep-black);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }
button { font-family: inherit; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 0.6em;
}
p { margin: 0 0 1em; }
.eyebrow {
  font-weight: 600;
  font-size: var(--step-caption);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--arrow-green);
  margin: 0 0 0.75em;
  display: block;
}

:focus-visible { outline: var(--focus-ring); outline-offset: 2px; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--deep-black); color: var(--white);
  padding: 0.75rem 1.25rem; border-radius: 0 0 6px 0;
}
.skip-link:focus { left: 0; }

/* ------------------------------- Containers ------------------------------ */
.wrap {
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
section { padding-block: clamp(3rem, 7vw, 6rem); }

/* --------------------------------- Header -------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--hairline);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem; padding-block: 0.9rem;
}
.brand-logo { height: 28px; width: auto; }
.brand-logo img { height: 100%; width: auto; }

.header-actions { display: flex; align-items: center; gap: 1.5rem; }
.text-link {
  font-weight: 600; font-size: 0.95rem; text-decoration: none;
  color: var(--dark-slate); white-space: nowrap;
  border-bottom: 1px solid transparent;
}
.text-link:hover, .text-link:focus-visible { border-bottom-color: var(--teal); color: var(--teal); }

/* --------------------------------- Buttons -------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-display); font-weight: 700; font-size: 0.95rem;
  text-decoration: none; text-align: center; cursor: pointer;
  border-radius: 6px; border: 2px solid transparent;
  padding: 0.85rem 1.5rem; line-height: 1; white-space: nowrap;
  transition: background-color 120ms ease, color 120ms ease, border-color 120ms ease, transform 120ms ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--teal); color: var(--white); }
.btn-primary:hover, .btn-primary:focus-visible { background: var(--teal-900); }
.btn-primary.on-dark { background: var(--arrow-green); color: var(--deep-black); }
.btn-primary.on-dark:hover, .btn-primary.on-dark:focus-visible { background: #00d6d9; }
.btn-secondary {
  background: transparent; color: var(--teal); border-color: var(--teal);
}
.btn-secondary:hover, .btn-secondary:focus-visible { background: var(--teal-050); }
.btn-secondary.on-dark { color: var(--white); border-color: var(--light-stone); }
.btn-secondary.on-dark:hover, .btn-secondary.on-dark:focus-visible { background: rgba(255,255,255,0.08); border-color: var(--white); }
.btn-arrow { transition: transform 120ms ease; }
.btn:hover .btn-arrow { transform: translateX(3px); }

.btn-sm { padding: 0.75rem 1.2rem; font-size: 0.875rem; min-height: 44px; }

/* ------------------------------ Icon badges -------------------------------- */
/* Rounded icon-circle motif borrowed from the mockup's visual language,
   recolored to the locked brand palette (teal / arrow-green tints only). */
.icon-circle {
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%; flex-shrink: 0;
}
.icon-circle svg { width: 55%; height: 55%; }
.icon-circle--sm { width: 2.5rem; height: 2.5rem; }
.icon-circle--md { width: 3.25rem; height: 3.25rem; }
.icon-circle--lg { width: 4.5rem; height: 4.5rem; }
.icon-circle--xl { width: 6rem; height: 6rem; }
.icon-circle--teal { background: var(--teal-050); color: var(--teal); }
.icon-circle--green { background: var(--arrow-green-050); color: var(--teal-900); }
.icon-circle--outline-dark { background: rgba(255,255,255,0.08); color: var(--white); border: 1px solid rgba(255,255,255,0.25); }
.icon-circle--white { background: var(--white); color: var(--teal); }
.icon-circle--tan { background: var(--stone-050); color: var(--dark-slate); border: 1px solid var(--hairline); }

/* Connector arrows between horizontally-arranged step cards. Desktop-only:
   the multi-column tracks collapse to stacked/2-up layouts on smaller
   screens where a mid-gap arrow no longer reads correctly. */
@media (min-width: 961px) {
  .step-track { position: relative; }
  .step-track > li { position: relative; }
  .step-track > li:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 1.6rem; right: -1px;
    width: calc(var(--track-gap, 1.25rem) + 2px);
    height: 2px;
    background: var(--hairline);
    transform: translateX(50%);
    z-index: 1;
  }
  .step-track > li:not(:last-child)::before {
    content: "";
    position: absolute;
    top: 1.6rem; right: -1px;
    width: 0; height: 0;
    border-top: 4px solid transparent;
    border-bottom: 4px solid transparent;
    border-left: 6px solid var(--light-stone);
    transform: translate(calc(50% + var(--track-gap, 1.25rem) - 2px), -3px);
    z-index: 1;
  }
}

/* ---------------------------------- Hero ---------------------------------- */
#hero {
  background: var(--deep-black);
  color: var(--white);
  padding-block: clamp(3rem, 8vw, 6rem);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.hero-copy h1 { color: var(--white); font-size: var(--step-h1); }
.hero-copy .lead {
  font-size: var(--step-lead); color: #d7d9d8; max-width: 46ch; margin-bottom: 2rem;
}
.hero-ctas { display: flex; flex-wrap: wrap; align-items: center; gap: 1.25rem; }
.hero-secondary-link { color: #d7d9d8; }
.hero-secondary-link:hover, .hero-secondary-link:focus-visible { color: var(--arrow-green); border-bottom-color: var(--arrow-green); }

/* Hero visual — abstract placeholder dashboard (NOT a real product screenshot).
   The rail/ring/echo elements are decorative layout devices only — unlabeled
   so they don't imply confirmed navigation items or product features beyond
   what the written spec approves (TTE, TAP). */
.hero-visual { position: relative; }
.dashboard-mock-wrap { position: relative; padding-bottom: 1.5rem; padding-right: 1.5rem; }
.dashboard-mock {
  background: var(--white); border-radius: var(--radius-card);
  padding: 1.5rem; color: var(--deep-black);
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.55);
  position: relative; z-index: 2;
}
.dashboard-mock__badge {
  position: absolute; top: -14px; left: 1.5rem;
  background: var(--black-800); color: var(--light-stone);
  font-size: 0.7rem; font-weight: 600; letter-spacing: 0.04em;
  padding: 0.3rem 0.7rem; border-radius: 999px;
  text-transform: uppercase;
}
.dashboard-mock__body { display: flex; gap: 1.25rem; align-items: flex-start; }
.dashboard-mock__rail {
  display: flex; flex-direction: column; gap: 0.6rem;
  padding-right: 1.1rem; border-right: 1px solid var(--hairline); flex-shrink: 0;
}
.dashboard-mock__rail-icon {
  display: block; width: 1.9rem; height: 1.9rem; border-radius: 50%;
  background: var(--teal-050);
}
.dashboard-mock__rail-icon:first-child { background: var(--teal); }
.dashboard-mock__main { flex: 1; min-width: 0; }
.dashboard-mock__ring { flex-shrink: 0; width: 5rem; text-align: center; }
.dashboard-mock__ring svg { width: 100%; height: auto; }
.dashboard-mock__ring-label { display: block; font-size: 0.65rem; color: var(--dark-slate); margin-top: 0.35rem; }
.dashboard-mock__head {
  display: flex; justify-content: space-between; align-items: baseline;
  border-bottom: 1px solid var(--hairline); padding-bottom: 0.85rem; margin-bottom: 1.1rem;
}
.dashboard-mock__head span:first-child { font-weight: 700; font-size: 0.95rem; }
.dashboard-mock__head span:last-child { font-size: 0.75rem; color: var(--dark-slate); }
.dashboard-mock__score {
  display: flex; align-items: flex-end; gap: 1rem; margin-bottom: 1.25rem;
}
.dashboard-mock__score-value { font-size: 3rem; font-weight: 700; color: var(--teal); line-height: 1; }
.dashboard-mock__score-label { font-size: 0.8rem; color: var(--dark-slate); max-width: 16ch; }
.dashboard-mock__bars { display: grid; gap: 0.6rem; }
.dashboard-mock__bar-row { display: grid; grid-template-columns: 8rem 1fr; align-items: center; gap: 0.75rem; }
.dashboard-mock__bar-row span { font-size: 0.75rem; color: var(--dark-slate); }
.dashboard-mock__bar-track { height: 8px; background: var(--stone-050); border-radius: 999px; overflow: hidden; }
.dashboard-mock__bar-fill { height: 100%; background: var(--teal); border-radius: 999px; }
.dashboard-mock__bar-fill.alt { background: var(--arrow-green); }
.dashboard-mock__note {
  margin-top: 1.25rem; font-size: 0.7rem; color: var(--light-stone);
  border-top: 1px dashed var(--hairline); padding-top: 0.75rem;
}
/* Small "echo" card peeking out bottom-right, evoking the mockup's paired
   dashboard + phone composition without claiming a real mobile view. */
.dashboard-mock-echo {
  position: absolute; right: 0; bottom: 0; z-index: 1;
  width: 6.5rem; background: var(--white); border-radius: 12px;
  padding: 0.9rem 0.8rem; box-shadow: 0 20px 40px -18px rgba(0,0,0,0.5);
  border: 1px solid var(--hairline);
}
.dashboard-mock-echo__score { font-size: 1.3rem; font-weight: 700; color: var(--teal); text-align: center; margin-bottom: 0.6rem; }
.dashboard-mock-echo__bars { display: grid; gap: 0.35rem; }
.dashboard-mock-echo__bars span { display: block; height: 5px; border-radius: 999px; background: var(--teal-050); }
.dashboard-mock-echo__bars span:nth-child(2) { background: var(--arrow-green-050); }
@media (max-width: 500px) {
  .dashboard-mock__rail { display: none; }
  .dashboard-mock-echo { display: none; }
}

/* ----------------------------- Credibility strip --------------------------- */
#credibility { background: var(--white); padding-block: clamp(2rem, 4vw, 3rem); }
.credibility-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem;
}
.element-tile {
  display: flex; align-items: center; gap: 1rem;
  border: 1px solid var(--hairline); border-radius: var(--radius-tile);
  padding: 1.25rem 1.4rem; position: relative; background: var(--white);
}
.element-tile__value {
  font-size: 2rem; font-weight: 700; color: var(--teal); line-height: 1;
  font-family: var(--font-mono-ish);
}
.element-tile__label { font-size: 0.85rem; color: var(--dark-slate); margin-top: 0.35rem; }

/* --------------------------------- Sections -------------------------------- */
.section-band-light { background: var(--stone-050); }
.section-band-dark { background: var(--deep-black); color: var(--white); }
.section-head { max-width: 62ch; margin-bottom: clamp(2rem, 4vw, 3rem); }
.section-head h2 { font-size: var(--step-h2); }
.section-band-dark .section-head h2 { color: var(--white); }
.section-head .subhead { font-size: var(--step-lead); color: var(--dark-slate); }
.section-band-dark .section-head .subhead { color: var(--light-stone); }

/* ------------------------------- Two systems -------------------------------- */
.systems-layout { display: grid; grid-template-columns: 1.4fr 1fr; gap: clamp(2rem, 4vw, 3rem); align-items: start; }
.systems-cards { display: grid; grid-template-columns: 1fr auto 1fr; gap: 1.25rem; align-items: stretch; }
.system-card {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 1.25rem;
  border-radius: var(--radius-card); padding: 1.75rem; border: 1px solid var(--hairline);
}
.system-card.visible-system { background: var(--teal-050); border-color: var(--teal-100); }
.system-card.invisible-system { background: var(--arrow-green-050); border-color: var(--arrow-green-100); }
.system-card-text h3 { font-size: 1.05rem; text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 0.75rem; }
.system-card-text h3 .tag { display: block; font-size: 1.35rem; text-transform: none; letter-spacing: normal; margin-top: 0.15rem; }
.system-card-text ul { margin: 0; padding-left: 1.1rem; }
.system-card-text li { margin-bottom: 0.4rem; }
.system-card .icon-circle { margin-top: 0.2rem; }

.systems-cycle {
  display: flex; align-items: center; justify-content: center; color: var(--arrow-green);
}
.systems-relationship {
  align-self: center; background: var(--white); border: 1px solid var(--hairline);
  border-radius: var(--radius-card); padding: 1.75rem;
}
.systems-relationship p { font-size: 1.15rem; font-weight: 600; color: var(--teal-900); margin: 0; }

/* ------------------------------- Maturity journey ---------------------------- */
.maturity-track {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; position: relative;
  --track-gap: 1rem;
}
.maturity-step {
  background: var(--white); border: 1px solid var(--hairline); border-radius: var(--radius-card);
  padding: 1.5rem; position: relative;
}
.maturity-step__num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 3.25rem; height: 3.25rem; border-radius: 50%; background: var(--teal-050); color: var(--teal);
  font-weight: 700; font-size: 1.1rem; margin-bottom: 1rem;
}
.maturity-step:last-child .maturity-step__num { background: var(--arrow-green-050); color: var(--teal-900); }
.maturity-step h3 { font-size: 1.05rem; margin-bottom: 0.4rem; }
.maturity-step p { font-size: 0.9rem; color: var(--dark-slate); margin: 0; }
.maturity-note {
  margin-top: 1.5rem; font-size: 0.85rem; color: var(--dark-slate); font-style: italic;
}

/* -------------------------------- How it works ------------------------------ */
.loop-track {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem;
  --track-gap: 1.25rem;
}
.loop-step { text-align: left; background: var(--white); border: 1px solid var(--hairline); border-radius: var(--radius-card); padding: 1.5rem; }
.loop-step__icon {
  width: 3.25rem; height: 3.25rem; border-radius: 50%;
  background: var(--teal-050); color: var(--teal);
  display: flex; align-items: center; justify-content: center; margin-bottom: 1rem;
}
.loop-step:last-child .loop-step__icon { background: var(--arrow-green-050); color: var(--teal-900); }
.loop-step h3 { font-size: 1.15rem; margin-bottom: 0.35rem; }
.loop-step p { font-size: 0.92rem; color: var(--dark-slate); margin: 0; }
.loop-arrow { display: none; }

/* ----------------------------------- Product --------------------------------- */
.product-layout { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.workflow-chain { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem; margin-bottom: 2rem; }
.workflow-chip {
  background: var(--teal-050); color: var(--teal-900); font-weight: 700; font-size: 0.85rem;
  padding: 0.5rem 0.9rem; border-radius: 999px; border: 1px solid var(--teal-100);
}
.workflow-sep { color: var(--light-stone); font-weight: 700; }
.product-features { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem 1.25rem; }
.product-feature { display: flex; align-items: flex-start; gap: 0.9rem; }
.product-feature h3 { font-size: 1rem; margin-bottom: 0.25rem; color: var(--teal-900); }
.product-feature p { font-size: 0.88rem; color: var(--dark-slate); margin: 0; }
.product-visual {
  background: var(--stone-050); border-radius: var(--radius-card); padding: 2rem;
  display: grid; gap: 1rem; position: relative;
}
.product-visual .mini-tile {
  background: var(--white); border: 1px solid var(--hairline); border-radius: var(--radius-tile);
  padding: 1rem 1.25rem; display: flex; justify-content: space-between; align-items: center;
}
.product-visual .mini-tile strong { color: var(--teal); font-family: var(--font-mono-ish); }

/* ----------------------------------- Evidence --------------------------------- */
/* Light section housing a dark "data card" — echoes the mockup's embedded
   comparison panel rather than a full-bleed dark section. */
#evidence { background: var(--white); color: var(--deep-black); }
.evidence-context { color: var(--dark-slate); font-size: 0.9rem; margin-bottom: 2rem; }
.evidence-layout { display: grid; grid-template-columns: 1.5fr 1fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: center; }
.evidence-card-panel {
  background: var(--teal-900); border-radius: var(--radius-card); padding: clamp(1.5rem, 3vw, 2rem);
  display: grid; grid-template-columns: 1fr auto 1fr; gap: 1.25rem; align-items: center;
}
.evidence-card {
  border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius-tile); padding: 1.5rem; background: rgba(255,255,255,0.04);
}
.evidence-card__label { font-size: 0.78rem; letter-spacing: 0.05em; text-transform: uppercase; color: #a9d9d9; margin-bottom: 1rem; }
.evidence-card.top .evidence-card__label { color: var(--arrow-green); }
.evidence-stats { display: flex; gap: 1.5rem; }
.evidence-stat__value { font-size: 1.9rem; font-weight: 700; font-family: var(--font-mono-ish); color: var(--white); }
.evidence-card.top .evidence-stat__value { color: var(--arrow-green); }
.evidence-stat__label { font-size: 0.72rem; color: #a9d9d9; }
.evidence-vs {
  width: 2.75rem; height: 2.75rem; border-radius: 50%; background: var(--white); color: var(--teal-900);
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.8rem;
  border: 3px solid var(--arrow-green);
}
.evidence-diff { text-align: left; }
.evidence-diff__vs { font-size: 0.85rem; color: var(--dark-slate); margin-bottom: 0.5rem; display: block; }
.evidence-diff__value { font-size: 3rem; font-weight: 700; color: var(--teal); line-height: 1; }
.evidence-diff__label { font-size: 0.95rem; color: var(--dark-slate); margin-top: 0.4rem; }
.evidence-footnote { margin-top: 1.5rem; font-size: 0.85rem; color: var(--dark-slate); }

/* ------------------------------- Partner relevance ------------------------------ */
/* Overlapping-circle (Venn) motif from the mockup, recolored to teal /
   arrow-green tints from the locked palette instead of the mockup's
   off-brand blue/tan. */
.relevance-layout { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 4vw, 3rem); align-items: center; }
.relevance-venn {
  position: relative; display: flex; align-items: center; justify-content: center;
  height: 220px; margin-bottom: 1.5rem;
}
.relevance-venn-circle {
  position: absolute; width: 190px; height: 190px; border-radius: 50%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 1rem;
}
.relevance-venn-circle.eos { background: var(--teal-050); left: calc(50% - 150px); }
.relevance-venn-circle.copperteams { background: var(--arrow-green-050); left: calc(50% - 40px); }
.relevance-venn-circle .eyebrow-inline { font-weight: 700; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 0.5rem; display: block; }
.relevance-venn-circle.eos .eyebrow-inline { color: var(--teal); }
.relevance-venn-circle.copperteams .eyebrow-inline { color: var(--teal-900); }
.relevance-venn-circle p { margin: 0; font-weight: 600; font-size: 0.95rem; color: var(--deep-black); max-width: 16ch; }
.relevance-highlight {
  padding: 1.25rem 1.5rem; border-left: 4px solid var(--arrow-green);
  background: var(--white); border-radius: 0 var(--radius-tile) var(--radius-tile) 0;
}
.relevance-highlight p { margin: 0; font-weight: 700; font-size: 1.1rem; color: var(--teal-900); }
.relevance-invite { margin-top: 1.25rem; color: var(--dark-slate); }

/* ----------------------------------- Partner event -------------------------------- */
#partner-event { background: var(--teal); color: var(--white); }
#partner-event .section-head h2 { color: var(--white); }
#partner-event .section-head .subhead { color: #d7f2f2; }
.event-panel {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(2rem, 4vw, 3rem);
  background: var(--teal-900); border-radius: var(--radius-card); padding: clamp(1.75rem, 4vw, 3rem);
}
.event-details dl { display: grid; grid-template-columns: auto 1fr; gap: 0.6rem 1.25rem; margin: 0 0 1.5rem; }
.event-details dt { font-weight: 700; font-size: 0.85rem; color: #a9d9d9; text-transform: uppercase; letter-spacing: 0.03em; }
.event-details dd { margin: 0; }
.placeholder-tag {
  display: inline-block; background: rgba(255,255,255,0.12); border: 1px dashed rgba(255,255,255,0.4);
  color: #d7f2f2; font-size: 0.85rem; padding: 0.1rem 0.55rem; border-radius: 4px; font-family: var(--font-mono-ish);
}
.event-meta { display: grid; gap: 1.1rem; align-content: start; }
.event-meta-item { display: flex; align-items: center; gap: 0.9rem; border-top: 1px solid rgba(255,255,255,0.15); padding-top: 1.1rem; }
.event-meta-item h4 { margin: 0 0 0.3rem; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.03em; color: #a9d9d9; }
.event-meta-item p { margin: 0; }

/* -------------------------------------- FAQ ---------------------------------------- */
/* Wrapping row of pill-style questions, matching the mockup's compact
   horizontal FAQ chips, instead of a full-width stacked accordion. */
.faq-list { display: flex; flex-wrap: wrap; gap: 0.75rem 1rem; align-items: flex-start; }
.faq-item { display: flex; flex-direction: column; gap: 0.5rem; }
.faq-question {
  display: flex; align-items: center; gap: 0.6rem; white-space: nowrap;
  background: var(--white); border: 1px solid var(--hairline); border-radius: 999px;
  cursor: pointer; padding: 0.85rem 1.4rem; font-weight: 700; font-size: 0.9rem; color: var(--deep-black);
}
.faq-question:hover { border-color: var(--teal); background: var(--teal-050); }
.faq-question[aria-expanded="true"] { background: var(--teal-050); border-color: var(--teal); color: var(--teal-900); }
.faq-icon { flex-shrink: 0; transition: transform 150ms ease; color: var(--teal); }
.faq-question[aria-expanded="true"] .faq-icon { transform: rotate(45deg); }
.faq-answer {
  overflow: hidden; max-height: 0; transition: max-height 200ms ease;
  width: 280px; max-width: 80vw; background: var(--white);
  border-radius: var(--radius-tile); border: 1px solid transparent;
}
.faq-answer[data-open="true"] { max-height: 20rem; border-color: var(--hairline); }
.faq-answer p { padding: 1rem 1.25rem; margin: 0; color: var(--dark-slate); font-size: 0.88rem; }

/* -------------------------------------- Final CTA ----------------------------------- */
#final-cta { background: var(--deep-black); color: var(--white); text-align: center; }
#final-cta h2 { color: var(--white); font-size: var(--step-h2); max-width: 24ch; margin-inline: auto; }
.final-cta-primary { margin-top: 1.75rem; }
.final-cta-secondary {
  margin-top: 3rem; padding-top: 2.5rem; border-top: 1px solid #2a2a2a;
  display: inline-flex; flex-direction: column; align-items: center; gap: 0.75rem;
}
.final-cta-secondary p { color: var(--light-stone); margin: 0; }

/* ----------------------------------------- Footer ------------------------------------ */
.site-footer { background: var(--black-800); color: var(--light-stone); padding-block: 2.5rem; }
.footer-grid {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1.5rem;
}
.footer-brand { display: flex; align-items: center; gap: 0.9rem; }
/* Solid backing plate behind the logo on the dark footer — per Brand Guide
   photography rule: "solid colour backing when logo overlaps photography/dark
   surfaces." The supplied asset is teal-on-transparent, so it needs a light
   backing to stay legible and unaltered (never recolour the mark itself). */
.footer-logo-plate {
  display: inline-flex; align-items: center; background: var(--white);
  padding: 0.4rem 0.75rem; border-radius: 4px;
}
.footer-brand img { height: 20px; }
.footer-brand span { font-size: 0.8rem; color: var(--light-stone); }
.footer-links { display: flex; gap: 1.5rem; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; }
.footer-links a { text-decoration: none; font-size: 0.85rem; color: var(--light-stone); }
.footer-links a:hover, .footer-links a:focus-visible { color: var(--white); }
.footer-copy { font-size: 0.78rem; color: #7d7d7d; width: 100%; text-align: center; margin-top: 1.5rem; }

/* ----------------------------------------- Responsive --------------------------------- */
@media (max-width: 960px) {
  .hero-grid, .systems-layout, .product-layout, .relevance-layout, .event-panel { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .systems-cards { grid-template-columns: 1fr; }
  .systems-cycle { transform: rotate(90deg); padding: 0.5rem 0; }
  .credibility-grid { grid-template-columns: 1fr; }
  .maturity-track { grid-template-columns: 1fr 1fr; }
  .loop-track { grid-template-columns: 1fr 1fr; }
  .evidence-layout { grid-template-columns: 1fr; }
  .evidence-card-panel { grid-template-columns: 1fr; }
  .evidence-vs { justify-self: center; }
  .evidence-diff { text-align: center; }
  .relevance-venn { transform: scale(0.85); }
}

@media (max-width: 620px) {
  .maturity-track { grid-template-columns: 1fr; }
  .loop-track { grid-template-columns: 1fr; }
  .product-features { grid-template-columns: 1fr; }
  .header-actions .text-link { display: none; }
  .hero-ctas { flex-direction: column; align-items: stretch; }
  .hero-ctas .btn { justify-content: center; }
  .hero-ctas .text-link { text-align: center; }
  .event-details dl { grid-template-columns: 1fr; }
  .event-details dt { margin-top: 0.5rem; }
  .relevance-venn { height: 280px; }
  .relevance-venn-circle { width: 160px; height: 160px; }
  .relevance-venn-circle.eos { left: calc(50% - 130px); top: 10px; }
  .relevance-venn-circle.copperteams { left: calc(50% - 30px); top: 90px; }
}