/* ============================================================
   LINCR landing — palette matched to pitch deck
   ============================================================ */
:root {
  --bg:        #0B0D0F;   /* near-black slate */
  --bg-2:      #0F1216;   /* section-dark */
  --card:      #12161C;   /* lifted card */
  --card-alt:  #0F1216;
  --border:    #1F2937;   /* hairlines */
  --border-2:  #263140;

  --text:      #F1F5F9;   /* slate-100 */
  --muted:     #94A3B8;   /* slate-400 */
  --faint:     #64748B;   /* slate-500 */

  --teal:      #14B8A6;   /* accent */
  --teal-dim:  #0F8A7E;
  --teal-glow: rgba(20, 184, 166, 0.12);
  --teal-ink:  #083431;

  --f-head: "Satoshi", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --f-body: "General Sans", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;

  --shadow-card: 0 1px 0 rgba(255,255,255,0.02) inset, 0 20px 40px -24px rgba(0,0,0,0.7);

  --max: 1200px;
  --radius: 14px;

  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --sp-8: 64px;
  --sp-9: 96px;
  --sp-10: 128px;
}

/* ============================================================
   Reset
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible, summary:focus-visible, [href]:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
  border-radius: 4px;
}
ol, ul { margin: 0; padding: 0; list-style: none; }
p { margin: 0 0 var(--sp-4); }

/* ============================================================
   Layout primitives
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 40px);
}

.accent { color: var(--teal); }
.muted  { color: var(--muted); font-size: 0.9em; }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--f-head);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--teal);
  text-transform: uppercase;
  margin-bottom: var(--sp-5);
}
.tag__bar {
  width: 26px;
  height: 3px;
  background: var(--teal);
  display: inline-block;
}

.section {
  padding: clamp(72px, 10vw, 128px) 0;
  border-top: 1px solid var(--border);
  position: relative;
}
.section--tight { padding-top: clamp(48px, 6vw, 80px); padding-bottom: clamp(72px, 10vw, 128px); }
.section--dark { background: var(--bg-2); }

.section__head {
  max-width: 860px;
  margin-bottom: var(--sp-8);
}

/* ============================================================
   Typography
   ============================================================ */
.h2 {
  font-family: var(--f-head);
  font-weight: 700;
  font-size: clamp(28px, 4.2vw, 44px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 var(--sp-5);
  color: var(--text);
}

.lead {
  font-family: var(--f-body);
  font-size: clamp(16px, 1.3vw, 18px);
  color: var(--muted);
  max-width: 68ch;
  line-height: 1.6;
  margin: 0;
}

.source {
  margin-top: var(--sp-7);
  font-size: 12px;
  color: var(--faint);
  letter-spacing: 0.01em;
}
.source a {
  color: var(--muted);
  border-bottom: 1px dotted var(--faint);
}
.source a:hover { color: var(--teal); border-bottom-color: var(--teal); }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-family: var(--f-head);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.15s;
  white-space: nowrap;
}
.btn--primary {
  background: var(--teal);
  color: var(--teal-ink);
}
.btn--primary:hover {
  background: #17D6C3;
  transform: translateY(-1px);
}
.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-2);
}
.btn--ghost:hover {
  border-color: var(--teal);
  color: var(--teal);
}
.btn--lg {
  padding: 16px 28px;
  font-size: 15px;
}

/* ============================================================
   Nav
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 13, 15, 0.7);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s, background 0.25s;
}
.nav.is-scrolled {
  border-bottom-color: var(--border);
  background: rgba(11, 13, 15, 0.88);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px clamp(20px, 4vw, 40px);
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-head);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--text);
}
.brand__mark { color: var(--text); }
.brand__word { font-variant-numeric: tabular-nums; }
.brand__sep { color: var(--teal); margin: 0 1px; }

.nav__links {
  display: flex;
  gap: 28px;
}
.nav__links a {
  font-family: var(--f-head);
  font-size: 14px;
  color: var(--muted);
  transition: color 0.15s;
}
.nav__links a:hover { color: var(--text); }

.nav__cta { flex-shrink: 0; }

@media (max-width: 860px) {
  .nav__links { display: none; }
}
@media (max-width: 520px) {
  .nav__cta { padding: 10px 16px; font-size: 13px; }
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  padding: clamp(72px, 12vw, 140px) 0 clamp(60px, 8vw, 96px);
  overflow: hidden;
}
.hero::before {
  /* subtle teal wash, bottom-left → fades out */
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 12% 100%, var(--teal-glow), transparent 70%),
    radial-gradient(ellipse 50% 40% at 88% 0%, rgba(20, 184, 166, 0.06), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.hero__inner { position: relative; z-index: 1; }

.hero__title {
  font-family: var(--f-head);
  font-weight: 900;
  font-size: clamp(44px, 7.5vw, 88px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  margin: 0 0 var(--sp-6);
  max-width: 18ch;
  color: var(--text);
  position: relative;
}
.hero__title::after {
  /* teal underline under first letter, like the deck title slide */
  content: "";
  display: block;
  width: 54px;
  height: 5px;
  background: var(--teal);
  margin-top: 22px;
}

.hero__sub {
  font-size: clamp(17px, 1.6vw, 20px);
  color: var(--muted);
  max-width: 62ch;
  margin: 0 0 var(--sp-7);
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: var(--sp-9);
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 3vw, 48px);
  padding-top: var(--sp-7);
  border-top: 1px solid var(--border);
  max-width: 880px;
}
.stat__num {
  font-family: var(--f-head);
  font-weight: 700;
  font-size: clamp(28px, 3.4vw, 42px);
  color: var(--teal);
  letter-spacing: -0.02em;
  line-height: 1;
}
.stat__lbl {
  margin-top: 10px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.45;
  max-width: 26ch;
}

.hero__rule {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  pointer-events: none;
}

@media (max-width: 640px) {
  .hero__stats { grid-template-columns: 1fr; gap: 24px; }
}

/* ============================================================
   Cards grid
   ============================================================ */
.grid {
  display: grid;
  gap: clamp(16px, 2vw, 24px);
}
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }

@media (max-width: 900px) {
  .grid--3 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .grid--3, .grid--2 { grid-template-columns: 1fr; }
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(22px, 2.5vw, 32px);
  box-shadow: var(--shadow-card);
  position: relative;
  transition: border-color 0.25s, transform 0.25s;
}
.card:hover {
  border-color: var(--border-2);
  transform: translateY(-2px);
}

.card__num {
  font-family: var(--f-head);
  font-weight: 700;
  font-size: clamp(40px, 4.5vw, 56px);
  color: var(--teal);
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.card__label {
  font-family: var(--f-head);
  font-weight: 700;
  font-size: 12px;
  color: var(--text);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.card__body {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.58;
  margin: 0;
}

.card--pillar { }
.card__eyebrow {
  font-family: var(--f-head);
  font-weight: 700;
  font-size: 12px;
  color: var(--teal);
  letter-spacing: 0.2em;
  margin-bottom: 14px;
}
.card__title {
  font-family: var(--f-head);
  font-weight: 700;
  font-size: clamp(20px, 1.8vw, 24px);
  color: var(--text);
  margin: 0 0 12px;
  letter-spacing: -0.01em;
}

/* ROI cards */
.card--roi {
  padding: clamp(28px, 3vw, 44px);
}
.card--roi .card__label {
  color: var(--faint);
}
.card--roi-win .card__label {
  color: var(--teal);
}
.card__big {
  font-family: var(--f-head);
  font-weight: 900;
  font-size: clamp(44px, 6.5vw, 72px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--text);
  margin: 16px 0 18px;
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.card__big--accent { color: var(--teal); }
.card__big-unit {
  font-family: var(--f-body);
  font-size: clamp(14px, 1.2vw, 17px);
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0;
}
.card--roi .card__body { font-size: 15px; }

/* ============================================================
   Steps
   ============================================================ */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 2vw, 24px);
  counter-reset: step;
}
.step {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(28px, 3vw, 40px) clamp(26px, 2.5vw, 32px);
  position: relative;
  transition: border-color 0.25s, transform 0.25s;
}
.step:hover {
  border-color: var(--teal-dim);
  transform: translateY(-2px);
}
.step__num {
  font-family: var(--f-head);
  font-weight: 700;
  font-size: clamp(48px, 6vw, 72px);
  color: var(--teal);
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.step__title {
  font-family: var(--f-head);
  font-weight: 700;
  font-size: clamp(20px, 2vw, 26px);
  color: var(--text);
  margin: 0 0 12px;
  letter-spacing: -0.01em;
}
.step__body {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
  margin: 0;
}

@media (max-width: 900px) { .steps { grid-template-columns: 1fr; } }

/* ============================================================
   Who section
   ============================================================ */
.who__item {
  border-left: 1px solid var(--border);
  padding: 4px 0 4px 22px;
}
.who__kicker {
  font-family: var(--f-head);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--teal);
  margin-bottom: 12px;
}
.who__item p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
  margin: 0;
}

/* ============================================================
   Founder
   ============================================================ */
.founder {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(28px, 4vw, 52px);
}
.founder__avatar {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: var(--bg-2);
  border: 1.5px solid var(--teal-dim);
  color: var(--text);
  font-family: var(--f-head);
  font-weight: 900;
  font-size: 54px;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  justify-content: center;
}
.founder__name {
  font-family: var(--f-head);
  font-weight: 700;
  font-size: clamp(24px, 2.5vw, 32px);
  color: var(--text);
  letter-spacing: -0.01em;
}
.founder__role {
  font-family: var(--f-head);
  font-weight: 600;
  font-size: 13px;
  color: var(--teal);
  letter-spacing: 0.08em;
  margin: 8px 0 20px;
}
.founder__quote {
  font-size: clamp(16px, 1.4vw, 18px);
  color: var(--muted);
  line-height: 1.6;
  border-left: 2px solid var(--teal);
  padding-left: 20px;
  margin: 0 0 24px;
  font-style: normal;
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.chips li {
  font-size: 13px;
  padding: 7px 14px;
  border: 1px solid var(--border-2);
  border-radius: 999px;
  color: var(--muted);
  background: var(--bg-2);
}

@media (max-width: 700px) {
  .founder { grid-template-columns: 1fr; text-align: left; }
  .founder__avatar { width: 96px; height: 96px; font-size: 36px; }
}

/* ============================================================
   FAQ
   ============================================================ */
.faq {
  max-width: 900px;
  border-top: 1px solid var(--border);
}
.faq details {
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}
.faq summary {
  list-style: none;
  cursor: pointer;
  font-family: var(--f-head);
  font-weight: 600;
  font-size: clamp(16px, 1.4vw, 19px);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 4px 0;
  letter-spacing: -0.005em;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-family: var(--f-head);
  font-weight: 400;
  font-size: 24px;
  color: var(--teal);
  line-height: 1;
  transition: transform 0.25s;
  flex-shrink: 0;
}
.faq details[open] summary::after {
  transform: rotate(45deg);
}
.faq__body {
  padding: 14px 0 4px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
  max-width: 72ch;
}

/* ============================================================
   CTA
   ============================================================ */
.cta {
  padding: clamp(96px, 12vw, 160px) 0;
  border-top: 1px solid var(--border);
  background:
    radial-gradient(ellipse 50% 60% at 50% 100%, var(--teal-glow), transparent 70%),
    var(--bg);
  text-align: center;
  position: relative;
}
.cta__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
.cta__bar {
  width: 32px;
  height: 3px;
  background: var(--teal);
  margin-bottom: 8px;
}
.cta__title {
  font-family: var(--f-head);
  font-weight: 900;
  font-size: clamp(36px, 5.6vw, 64px);
  letter-spacing: -0.03em;
  line-height: 1.04;
  margin: 0;
  max-width: 20ch;
}
.cta__sub {
  font-size: clamp(16px, 1.3vw, 18px);
  color: var(--muted);
  max-width: 58ch;
  margin: 0;
  line-height: 1.6;
}
.cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-top: 12px;
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0 48px;
  background: var(--bg);
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-head);
  font-weight: 600;
  font-size: 14px;
  color: var(--text);
}
.footer__brand svg { color: var(--text); }
.footer__meta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--muted);
}
.footer__meta a {
  color: var(--muted);
  border-bottom: 1px dotted var(--faint);
}
.footer__meta a:hover { color: var(--teal); border-bottom-color: var(--teal); }
.footer__dot { color: var(--faint); }

/* ============================================================
   Scroll reveal
   ============================================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}
[data-reveal-delay="1"] { transition-delay: 0.08s; }
[data-reveal-delay="2"] { transition-delay: 0.16s; }
[data-reveal-delay="3"] { transition-delay: 0.24s; }
[data-reveal-delay="4"] { transition-delay: 0.32s; }

@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}