/* ============================================================
   QUADNUX — LANDING PAGE STYLES
   Editorial / research-journal aesthetic
   Navy + Teal on warm cream paper
   ============================================================ */


/* ---------- 1. DESIGN TOKENS ----------
   Change colors and palette here in one place.
   Every component reads from these variables. */

:root {
  --paper:        #F4EFE6;   /* warm cream — main background */
  --paper-soft:   #EFE8DB;   /* cards, callouts */
  --ink:          #0F2A47;   /* navy — primary text */
  --ink-deep:     #081A2E;   /* dark vision section */
  --ink-soft:     #2A3F5F;   /* secondary text */
  --ink-mute:     #5C6B82;   /* meta / labels */
  --rule:         #C9C0AE;   /* dividers */
  --rule-soft:    #DAD2C0;   /* lighter dividers */
  --teal:         #0D9488;   /* brand accent */
  --teal-bright:  #14B8A6;   /* brand accent on dark */
  --teal-mute:    #BFE3DE;   /* underlines, soft accent */
  --amber:        #B8702A;   /* warm accent (reserve) */
}


/* ---------- 2. RESET & BASE ---------- */

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: 'Manrope', -apple-system, sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Subtle paper grain — turns whole canvas into a printed page */
body::before {
  content: '';
  position: fixed; inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(rgba(15,42,71,0.025) 1px, transparent 1px),
    radial-gradient(rgba(15,42,71,0.018) 1px, transparent 1px);
  background-size: 3px 3px, 7px 7px;
  background-position: 0 0, 1px 2px;
  z-index: 1;
  mix-blend-mode: multiply;
}


/* ---------- 3. SHARED ATOMS ---------- */

.wrap {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 48px;
  position: relative;
  z-index: 2;
}
@media (max-width: 720px) {
  .wrap { padding: 0 24px; }
}

.mono {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 500;
}

.serif { font-family: 'Instrument Serif', Georgia, serif; font-weight: 400; }
.italic { font-style: italic; }

.rule { height: 1px; background: var(--rule); border: 0; }
.rule-thin { height: 1px; background: var(--rule-soft); border: 0; }

/* Section header marker — § 01 ——— THE PROBLEM */
.section-mark {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}
.section-mark .num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--teal);
  letter-spacing: 0.18em;
  font-weight: 500;
}
.section-mark .dash {
  flex: 0 0 36px;
  height: 1px;
  background: var(--teal);
}
.section-mark .label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 500;
}

a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid var(--teal-mute);
  transition: border-color .18s;
}
a:hover { border-color: var(--teal); }


/* ---------- 4. TOP BAR ---------- */

.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(244,239,230,0.86);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--rule-soft);
}
.topbar-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand {
  display: flex; align-items: baseline; gap: 10px;
  font-family: 'Instrument Serif', serif;
  font-size: 24px;
  color: var(--ink);
  letter-spacing: -0.01em;
  border: 0;
}
.brand .tm {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--ink-mute);
  letter-spacing: 0.1em;
}
.nav {
  display: flex; gap: 32px;
  font-family: 'Manrope', sans-serif;
  font-size: 13px;
  font-weight: 500;
}
.nav a {
  color: var(--ink-soft);
  border: 0;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color .18s, border-color .18s;
}
.nav a:hover { color: var(--ink); border-bottom-color: var(--ink); }
@media (max-width: 720px) {
  .nav { display: none; }
}


/* ---------- 5. HERO ---------- */

.hero {
  padding: 96px 0 80px;
  border-bottom: 1px solid var(--rule);
  position: relative;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: 64px;
  align-items: end;
}
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 56px; }
  .hero { padding: 64px 0 56px; }
}

.hero-meta {
  display: flex; gap: 18px; align-items: center;
  margin-bottom: 36px;
}
.hero-meta .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--teal); }
.hero-meta .pipe { color: var(--rule); }

.hero h1 {
  font-family: 'Instrument Serif', serif;
  font-weight: 400;
  font-size: clamp(44px, 7vw, 96px);
  line-height: 0.98;
  letter-spacing: -0.018em;
  color: var(--ink);
  margin-bottom: 28px;
}
.hero h1 .accent { font-style: italic; color: var(--teal); }
.hero h1 .ampersand { font-style: italic; color: var(--ink-mute); font-weight: 300; }

.hero-lede {
  font-size: 19px;
  line-height: 1.5;
  color: var(--ink-soft);
  max-width: 580px;
  margin-bottom: 40px;
  font-weight: 400;
}

/* CTA buttons */
.cta-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
}
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px;
  font-family: 'Manrope', sans-serif;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  border: 0;
  cursor: pointer;
  transition: transform .15s, background .18s, color .18s;
  text-decoration: none;
}
.btn-primary {
  background: var(--ink);
  color: var(--paper);
}
.btn-primary:hover { background: var(--ink-deep); transform: translateY(-1px); }
.btn-ghost {
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--ink);
}
.btn-ghost:hover { background: var(--ink); color: var(--paper); transform: translateY(-1px); }
.btn .arrow { font-family: 'JetBrains Mono', monospace; font-size: 14px; }

/* Hero specimen card — research-journal entry style */
.specimen {
  border: 1px solid var(--ink);
  background: var(--paper-soft);
  padding: 28px 28px 24px;
  position: relative;
  align-self: stretch;
  display: flex; flex-direction: column;
  min-height: 380px;
}
.specimen::before {
  content: 'SPEC.';
  position: absolute;
  top: -10px; left: 22px;
  background: var(--paper);
  padding: 0 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--ink);
  letter-spacing: 0.2em;
  font-weight: 500;
}
.spec-row {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--rule-soft);
  font-size: 13px;
  align-items: baseline;
}
.spec-row:last-of-type { border-bottom: 0; }
.spec-row .k {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--ink-mute);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.spec-row .v { color: var(--ink); font-weight: 500; }
.spec-row .v .small { color: var(--ink-mute); font-weight: 400; font-size: 12px; }
.spec-foot {
  margin-top: auto;
  padding-top: 18px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--ink-mute);
  letter-spacing: 0.12em;
  display: flex; justify-content: space-between; gap: 12px;
}


/* ---------- 6. SECTION SHELL ---------- */

.section { padding: 96px 0; border-bottom: 1px solid var(--rule); }
@media (max-width: 720px) { .section { padding: 64px 0; } }

.h2 {
  font-family: 'Instrument Serif', serif;
  font-weight: 400;
  font-size: clamp(34px, 4.6vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.012em;
  color: var(--ink);
}
.h2 .em { font-style: italic; color: var(--teal); }

.two-col {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: 80px;
  align-items: start;
}
@media (max-width: 900px) {
  .two-col { grid-template-columns: 1fr; gap: 40px; }
}

.body-lg {
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-soft);
}
.body-lg + .body-lg { margin-top: 18px; }


/* ---------- 7. PROBLEM SECTION ---------- */

.gap-list {
  list-style: none;
  margin-top: 32px;
}
.gap-list li {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--rule-soft);
  align-items: baseline;
}
.gap-list li:last-child { border-bottom: 0; }
.gap-list .gnum {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--teal);
  letter-spacing: 0.16em;
  font-weight: 500;
}
.gap-list .gtxt {
  font-family: 'Instrument Serif', serif;
  font-size: 22px;
  line-height: 1.3;
  color: var(--ink);
}
.gap-list .gtxt .meta {
  display: block;
  font-family: 'Manrope', sans-serif;
  font-size: 14px;
  color: var(--ink-mute);
  margin-top: 4px;
  line-height: 1.5;
}

.verdict {
  margin-top: 44px;
  padding: 28px 32px;
  border-left: 3px solid var(--teal);
  background: var(--paper-soft);
  font-family: 'Instrument Serif', serif;
  font-size: 22px;
  line-height: 1.4;
  color: var(--ink);
}
.verdict .em { font-style: italic; color: var(--teal); }


/* ---------- 8. SOLUTION GRID ---------- */

.solution-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 56px;
  border-top: 1px solid var(--ink);
  border-left: 1px solid var(--ink);
}
@media (max-width: 900px) {
  .solution-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
  .solution-grid { grid-template-columns: 1fr; }
}
.feat {
  padding: 28px 26px;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  background: var(--paper);
  transition: background .2s;
  min-height: 200px;
  display: flex; flex-direction: column;
}
.feat:hover { background: var(--paper-soft); }
.feat .fnum {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--ink-mute);
  letter-spacing: 0.18em;
  margin-bottom: 18px;
}
.feat .ftitle {
  font-family: 'Instrument Serif', serif;
  font-size: 24px;
  line-height: 1.15;
  color: var(--ink);
  margin-bottom: 12px;
}
.feat .fdesc {
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin-top: auto;
}

/* Inverted dark-card variant for "See the MVP" cell */
.feat.feat-dark {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.feat.feat-dark .fnum { color: var(--teal-bright); }
.feat.feat-dark .ftitle { color: var(--paper); }
.feat.feat-dark .fdesc { color: rgba(244,239,230,0.7); }
.feat.feat-dark .fdesc a {
  color: var(--teal-bright);
  border-color: var(--teal);
}


/* ---------- 9. AUDIENCES TABLE ---------- */

.audience-table {
  margin-top: 48px;
  border-top: 1px solid var(--ink);
}
.audience-row {
  display: grid;
  grid-template-columns: 80px minmax(180px, 1fr) minmax(0, 2fr);
  gap: 32px;
  padding: 28px 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
  transition: padding-left .25s;
}
.audience-row:hover { padding-left: 12px; }
.audience-row .anum {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 0.18em;
}
.audience-row .arole {
  font-family: 'Instrument Serif', serif;
  font-size: 28px;
  line-height: 1.1;
  color: var(--ink);
  letter-spacing: -0.005em;
}
.audience-row .arole .it { font-style: italic; color: var(--teal); }
.audience-row .adesc {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 560px;
}
@media (max-width: 720px) {
  .audience-row { grid-template-columns: 60px 1fr; gap: 16px; }
  .audience-row .adesc { grid-column: 2; }
}


/* ---------- 10. TRACTION STRIP ---------- */

.traction {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: 48px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
@media (max-width: 900px) {
  .traction { grid-template-columns: repeat(2, 1fr); }
}
.traction-cell {
  padding: 32px 24px;
  border-right: 1px solid var(--rule);
}
.traction-cell:last-child { border-right: 0; }
@media (max-width: 900px) {
  .traction-cell:nth-child(2) { border-right: 0; }
  .traction-cell:nth-child(1),
  .traction-cell:nth-child(2) { border-bottom: 1px solid var(--rule); }
}
.traction-cell .tk {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--teal);
  letter-spacing: 0.18em;
  margin-bottom: 14px;
}
.traction-cell .tv {
  font-family: 'Instrument Serif', serif;
  font-size: 26px;
  line-height: 1.15;
  color: var(--ink);
}


/* ---------- 11. FOUNDER SECTION ---------- */

.founder-grid {
  display: grid;
  grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
  gap: 56px;
  align-items: start;
  margin-top: 48px;
}
@media (max-width: 720px) {
  .founder-grid { grid-template-columns: 1fr; gap: 32px; }
}
.avatar {
  aspect-ratio: 1;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Instrument Serif', serif;
  font-size: 96px;
  line-height: 1;
  letter-spacing: -0.02em;
  position: relative;
}
.avatar::after {
  content: 'UTIEYINESHOLA · A · YUSUFF';
  position: absolute;
  bottom: -22px; left: 0; right: 0;
  text-align: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--ink-mute);
  letter-spacing: 0.16em;
}
.founder-body .role {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--teal);
  letter-spacing: 0.18em;
  margin-bottom: 14px;
}
.founder-body .name {
  font-family: 'Instrument Serif', serif;
  font-size: 40px;
  line-height: 1.1;
  color: var(--ink);
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}
.founder-body p {
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-soft);
  margin-bottom: 14px;
}
.creds {
  display: flex; flex-wrap: wrap; gap: 8px 10px;
  margin-top: 20px;
}
.cred {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 6px 10px;
  border: 1px solid var(--ink-mute);
  color: var(--ink-soft);
}


/* ---------- 12. VISION (DARK INVERSION) ---------- */

.vision {
  background: var(--ink-deep);
  color: var(--paper);
  padding: 120px 0;
  position: relative;
  overflow: hidden;
}
.vision::before {
  content: '';
  position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 4px 4px;
  pointer-events: none;
}
.vision .section-mark .label,
.vision .section-mark .num { color: var(--teal-bright); }
.vision .section-mark .dash { background: var(--teal-bright); }

.vision-quote {
  font-family: 'Instrument Serif', serif;
  font-weight: 400;
  font-size: clamp(36px, 5.8vw, 76px);
  line-height: 1.04;
  letter-spacing: -0.018em;
  color: var(--paper);
  max-width: 1000px;
  position: relative;
  z-index: 2;
}
.vision-quote .em { font-style: italic; color: var(--teal-bright); }
.vision-attrib {
  margin-top: 40px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: rgba(244,239,230,0.6);
  letter-spacing: 0.2em;
  position: relative; z-index: 2;
}


/* ---------- 13. CTA / CONTACT ---------- */

.cta {
  padding: 96px 0;
  border-bottom: 1px solid var(--rule);
}
.cta-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 64px;
  align-items: center;
}
@media (max-width: 900px) {
  .cta-grid { grid-template-columns: 1fr; gap: 40px; }
}
.cta h2 {
  font-family: 'Instrument Serif', serif;
  font-weight: 400;
  font-size: clamp(38px, 5vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.014em;
  color: var(--ink);
}
.cta h2 .em { font-style: italic; color: var(--teal); }

.cta-card {
  border: 1px solid var(--ink);
  background: var(--paper-soft);
  padding: 32px;
}
.cta-card .label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--ink-mute);
  letter-spacing: 0.18em;
  margin-bottom: 14px;
}
.cta-card .val {
  font-family: 'Instrument Serif', serif;
  font-size: 20px;
  color: var(--ink);
  line-height: 1.35;
  margin-bottom: 20px;
}
.cta-card .val a { font-family: inherit; font-size: inherit; }
.cta-card hr.rule-thin { margin: 6px 0 18px; }


/* ---------- 14. CONTACT FORM ---------- */

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 24px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 540px) {
  .form-row { grid-template-columns: 1fr; }
}
.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-field label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--ink-mute);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.form-field input,
.form-field textarea,
.form-field select {
  font-family: 'Manrope', sans-serif;
  font-size: 15px;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 12px 14px;
  outline: none;
  transition: border-color .18s;
  width: 100%;
}
.form-field textarea {
  resize: vertical;
  min-height: 110px;
  line-height: 1.5;
}
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  border-color: var(--ink);
}
.form-field.error input,
.form-field.error textarea {
  border-color: #B8702A;
}
.form-field .err-msg {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: #B8702A;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 2px;
  display: none;
}
.form-field.error .err-msg { display: block; }

.form-status {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 12px 14px;
  border-left: 3px solid var(--teal);
  background: var(--paper-soft);
  color: var(--ink);
  display: none;
}
.form-status.show { display: block; }
.form-status.error { border-left-color: #B8702A; color: #B8702A; }


/* ---------- 15. FOOTER ---------- */

footer {
  padding: 48px 0 64px;
  background: var(--paper-soft);
}
.foot-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--rule);
}
@media (max-width: 720px) {
  .foot-grid { grid-template-columns: 1fr; gap: 24px; }
}
footer .colophon {
  font-family: 'Instrument Serif', serif;
  font-size: 28px;
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: 8px;
}
footer .colophon .tm-sup {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--ink-mute);
  letter-spacing: 0.1em;
  vertical-align: super;
}
footer .tag {
  font-family: 'Manrope', sans-serif;
  font-size: 14px;
  color: var(--ink-mute);
}
.foot-col h4 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--ink);
  letter-spacing: 0.18em;
  margin-bottom: 14px;
  font-weight: 500;
}
.foot-col a, .foot-col span {
  display: block;
  font-size: 14px;
  color: var(--ink-soft);
  border: 0;
  margin-bottom: 6px;
  line-height: 1.55;
}
.foot-col a:hover { color: var(--teal); }
.foot-bottom {
  padding-top: 24px;
  display: flex; justify-content: space-between; gap: 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--ink-mute);
  letter-spacing: 0.14em;
  flex-wrap: wrap;
}


/* ---------- 16. SCROLL REVEAL ANIMATION ---------- */

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .9s ease, transform .9s ease;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* Accessibility — respect users who prefer no motion */
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}