/* Supply Veins x Eduba landing. Operator-facing, Webflow-clean. */

:root {
  --sv-primary: #5386e4;
  --sv-primary-deep: #0050bd;
  --sv-accent: #e0c007;
  --sv-ink: #0a0908;
  --sv-body: #1a1b1f;
  --sv-muted: #5a6472;
  --sv-light: #e4ebf3;
  --sv-light-soft: #f4f7fb;
  --sv-border: #d7e0ec;
  --sv-bg: #ffffff;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-subtle: 0 1px 2px rgba(10, 9, 8, 0.06);
  --shadow-medium: 0 8px 24px rgba(10, 9, 8, 0.08);
  --shadow-card: 0 2px 6px rgba(10, 9, 8, 0.04), 0 12px 32px rgba(10, 9, 8, 0.06);

  --unit: 8px;
  --section-gap: 96px;

  --font-body: 'IBM Plex Sans', Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.6;
  color: var(--sv-body);
  background: var(--sv-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--sv-primary);
  text-decoration: none;
  border-bottom: 1px solid rgba(83, 134, 228, 0.35);
  transition: color 120ms ease, border-color 120ms ease;
}
a:hover { color: var(--sv-primary-deep); border-bottom-color: var(--sv-primary-deep); }
a:focus-visible { outline: 2px solid var(--sv-primary); outline-offset: 3px; border-radius: 2px; }

h1, h2, h3 {
  color: var(--sv-ink);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
}

h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.1; }
h2 { font-size: clamp(24px, 3vw, 32px); line-height: 1.2; }
h3 { font-size: 18px; line-height: 1.35; }

p { margin: 0 0 16px; }

.container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
  border-bottom: 1px solid var(--sv-border);
  background: var(--sv-bg);
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: saturate(180%) blur(8px);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
}
.logo-link { border-bottom: none; display: inline-flex; align-items: center; }
.logo-link img { height: 28px; width: auto; display: block; }
.header-meta {
  font-size: 13px;
  color: var(--sv-muted);
  letter-spacing: 0.02em;
}
.header-meta strong { color: var(--sv-ink); font-weight: 600; }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(ellipse 120% 80% at 85% -20%, rgba(83, 134, 228, 0.12), transparent 60%),
    linear-gradient(180deg, var(--sv-light-soft) 0%, #ffffff 100%);
  padding: 80px 0 72px;
  border-bottom: 1px solid var(--sv-border);
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sv-primary-deep);
  background: rgba(83, 134, 228, 0.08);
  border: 1px solid rgba(83, 134, 228, 0.2);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 24px;
}
.hero-kicker .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--sv-accent);
  box-shadow: 0 0 0 3px rgba(224, 192, 7, 0.2);
}
.hero h1 { max-width: 20ch; }
.hero-sub {
  margin-top: 20px;
  font-size: 19px;
  color: var(--sv-muted);
  max-width: 56ch;
  line-height: 1.5;
}
.hero-meta {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  font-size: 14px;
  color: var(--sv-muted);
}
.hero-meta span { display: inline-flex; align-items: center; gap: 8px; }
.hero-meta .pill {
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--sv-primary);
}

/* ---------- Content blocks ---------- */
.section { padding: 72px 0; }
.section + .section { border-top: 1px solid var(--sv-border); }
.section-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sv-primary-deep);
  margin-bottom: 12px;
}

.lede { font-size: 18px; color: var(--sv-body); max-width: 66ch; }
.prose { max-width: 66ch; }
.prose p { margin-bottom: 18px; }

/* ---------- Frame (60/30/10) ---------- */
.frame-card {
  margin-top: 32px;
  border: 1px solid var(--sv-border);
  border-radius: var(--radius-lg);
  background: #ffffff;
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.frame-header {
  background: var(--sv-ink);
  color: #ffffff;
  padding: 20px 28px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.frame-header h3 { color: #ffffff; font-size: 16px; letter-spacing: 0.04em; text-transform: uppercase; font-weight: 500; }
.frame-header .caption { font-size: 13px; color: rgba(255,255,255,0.7); }
.frame-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
.frame-cell {
  padding: 28px;
  border-right: 1px solid var(--sv-border);
}
.frame-cell:last-child { border-right: none; }
.frame-cell .pct {
  font-size: 40px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--sv-ink);
  line-height: 1;
}
.frame-cell .pct-accent { color: var(--sv-primary-deep); }
.frame-cell .layer {
  margin-top: 6px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--sv-muted);
}
.frame-cell p {
  margin-top: 14px;
  font-size: 15px;
  color: var(--sv-body);
  line-height: 1.55;
}

/* ---------- Numbered steps ---------- */
.steps {
  margin-top: 32px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.step {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 20px;
  padding: 24px;
  border: 1px solid var(--sv-border);
  border-radius: var(--radius-md);
  background: #ffffff;
  transition: border-color 120ms ease, box-shadow 120ms ease;
}
.step:hover { border-color: var(--sv-primary); box-shadow: var(--shadow-subtle); }
.step-num {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--sv-light);
  color: var(--sv-primary-deep);
  font-weight: 600;
  font-size: 16px;
  display: grid;
  place-items: center;
}
.step h3 { margin-bottom: 6px; }
.step p { margin: 0; color: var(--sv-body); font-size: 15.5px; }

/* ---------- Precedent / case card ---------- */
.precedent {
  margin-top: 32px;
  padding: 36px;
  border-radius: var(--radius-lg);
  background: var(--sv-light-soft);
  border: 1px solid var(--sv-border);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
}
.precedent h3 { font-size: 22px; margin-bottom: 12px; }
.precedent p { color: var(--sv-body); }
.precedent .deliverables {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
  align-self: start;
}
.precedent .deliverables li {
  font-size: 14.5px;
  color: var(--sv-body);
  padding-left: 22px;
  position: relative;
}
.precedent .deliverables li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 10px; height: 2px;
  background: var(--sv-primary);
}
.precedent .deliverables .label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sv-muted);
  padding-left: 0;
  margin-bottom: 4px;
}
.precedent .deliverables .label::before { display: none; }

/* ---------- Methodology ---------- */
.method {
  margin-top: 32px;
  padding: 28px;
  border-left: 3px solid var(--sv-primary);
  background: #ffffff;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  box-shadow: var(--shadow-subtle);
}
.method .paper-title {
  font-family: var(--font-body);
  font-style: italic;
  color: var(--sv-ink);
}
.method code {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 13.5px;
  background: var(--sv-light-soft);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--sv-primary-deep);
}

/* ---------- Team / provenance ---------- */
.team-block {
  margin-top: 32px;
  padding: 28px;
  border: 1px solid var(--sv-border);
  border-radius: var(--radius-md);
  background: #ffffff;
}
.team-block p { margin-bottom: 12px; }
.team-block p:last-child { margin-bottom: 0; }

/* ---------- CTA ---------- */
.cta {
  background: var(--sv-ink);
  color: #ffffff;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 10% 0%, rgba(83, 134, 228, 0.25), transparent 40%),
    radial-gradient(circle at 90% 100%, rgba(224, 192, 7, 0.12), transparent 50%);
  pointer-events: none;
}
.cta .container { position: relative; z-index: 1; }
.cta .section-label { color: var(--sv-accent); }
.cta h2 { color: #ffffff; max-width: 22ch; }
.cta p { color: rgba(255, 255, 255, 0.78); max-width: 62ch; font-size: 17px; margin-top: 16px; }
.cta-bring {
  margin-top: 28px;
  padding: 20px 24px;
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-md);
  color: rgba(255,255,255,0.88);
  font-size: 15.5px;
  max-width: 64ch;
}
.cta-bring strong { color: #ffffff; font-weight: 600; }
.cta-row {
  margin-top: 32px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px 28px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--sv-primary);
  color: #ffffff;
  font-weight: 600;
  font-size: 16px;
  padding: 16px 26px;
  border-radius: var(--radius-md);
  border-bottom: none;
  transition: background 140ms ease, transform 140ms ease;
  min-height: 48px;
}
.btn:hover { background: var(--sv-primary-deep); color: #ffffff; border-bottom: none; transform: translateY(-1px); }
.btn:focus-visible { outline: 2px solid var(--sv-accent); outline-offset: 3px; }
.btn .arrow { transition: transform 160ms ease; }
.btn:hover .arrow { transform: translateX(3px); }

.cta-host {
  display: flex;
  align-items: center;
  gap: 14px;
  color: rgba(255,255,255,0.82);
  font-size: 14.5px;
}
.cta-host .avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sv-primary), var(--sv-primary-deep));
  display: grid;
  place-items: center;
  font-weight: 600;
  color: #ffffff;
  font-size: 15px;
  letter-spacing: 0.02em;
}
.cta-host .who { line-height: 1.3; }
.cta-host .who strong { display: block; color: #ffffff; font-weight: 600; }

/* ---------- Footer ---------- */
.site-footer {
  padding: 36px 0 48px;
  border-top: 1px solid var(--sv-border);
  background: #ffffff;
}
.site-footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: var(--sv-muted);
}
.site-footer a { color: var(--sv-muted); border-bottom-color: transparent; }
.site-footer a:hover { color: var(--sv-primary-deep); border-bottom-color: currentColor; }

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .frame-grid { grid-template-columns: 1fr; }
  .frame-cell { border-right: none; border-bottom: 1px solid var(--sv-border); }
  .frame-cell:last-child { border-bottom: none; }
  .precedent { grid-template-columns: 1fr; gap: 24px; padding: 28px; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .hero { padding: 56px 0 52px; }
  .section { padding: 56px 0; }
  .cta { padding: 64px 0; }
  .container { padding: 0 20px; }
  .hero h1 { font-size: 32px; }
  h2 { font-size: 24px; }
  .hero-sub { font-size: 17px; }
  .frame-header { padding: 18px 22px; }
  .frame-cell { padding: 24px; }
  .frame-cell .pct { font-size: 34px; }
  .precedent { padding: 24px; }
  .precedent h3 { font-size: 20px; }
  .step { grid-template-columns: 44px 1fr; padding: 20px; gap: 16px; }
  .step-num { width: 36px; height: 36px; font-size: 15px; }
  .cta h2 { font-size: 26px; }
  .cta-row { gap: 18px; }
  .btn { width: 100%; justify-content: center; }
  .site-header .container { padding-top: 14px; padding-bottom: 14px; }
  .header-meta { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}