/* ============================================================
   Bifröst Ventures
   Palette and radius derived directly from the logo:
   ink #111111, aurora #FCE38A, rounded square rx 8/79 ≈ 10%
   ============================================================ */

:root {
  --ink:        #111111;
  --ink-soft:   #3A3A36;
  --slate:      #6E6E68;
  --paper:      #FBFAF7;
  --paper-warm: #F4F2EC;
  --aurora:     #FCE38A;
  --hairline:   #E4E2DC;

  --font-display: "Avenir Next", "Avenir", system-ui, -apple-system,
                  "Segoe UI Variable Display", "Segoe UI", Roboto,
                  "Helvetica Neue", sans-serif;
  --font-body:    system-ui, -apple-system, "Segoe UI", Roboto,
                  "Helvetica Neue", Arial, sans-serif;

  --radius: 10px;
  --shell: 1120px;
  --gutter: clamp(20px, 5vw, 56px);
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }
p { margin: 0 0 1.1em; }
ul { margin: 0; padding: 0; list-style: none; }

a { color: inherit; }

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 12px 18px;
  z-index: 100;
  border-radius: 0 0 var(--radius) 0;
}
.skip:focus { left: 0; }

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ---------- Eyebrow / small caps utility ---------- */

.eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--slate);
  margin: 0 0 28px;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
  padding: 15px 26px;
  border-radius: var(--radius);
  transition: transform .18s ease, background-color .18s ease;
}
.btn::after {
  content: "→";
  transition: transform .18s ease;
}
.btn:hover { background: #000; transform: translateY(-1px); }
.btn:hover::after { transform: translateX(3px); }

.btn--small { padding: 10px 18px; font-size: 14px; }

.btn--aurora { background: var(--aurora); color: var(--ink); }
.btn--aurora:hover { background: #FFEDA6; }

/* ---------- Masthead ---------- */

.masthead {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251, 250, 247, 0.88);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--hairline);
}
.masthead__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 18px;
}
.masthead__logo img { width: 168px; height: auto; }

.masthead__nav {
  display: flex;
  align-items: center;
  gap: 30px;
  font-size: 15px;
}
.masthead__nav a { text-decoration: none; color: var(--ink-soft); }
.masthead__nav a:hover { color: var(--ink); }
.masthead__nav .btn { color: var(--paper); }

/* ---------- Hero ---------- */

.hero { padding-top: clamp(72px, 12vw, 132px); }

.hero__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.05rem, 4.6vw, 3.4rem);
  line-height: 1.04;
  letter-spacing: -0.034em;
  margin: 0 0 28px;
  max-width: 24ch;
  text-wrap: balance;
}
.hero__turn { display: block; color: var(--slate); }

.hero__lede {
  font-size: clamp(1.05rem, 1.5vw, 1.22rem);
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 56ch;
  margin-bottom: 36px;
}

.hero__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px 24px;
}
.hero__note { font-size: 14px; color: var(--slate); }

/* ---------- The arc: Bifröst, the crossing ---------- */

.arc {
  margin-top: clamp(48px, 8vw, 92px);
  padding-inline: var(--gutter);
  max-width: var(--shell);
  margin-inline: auto;
}
.arc svg { width: 100%; height: auto; overflow: visible; }

.arc__span {
  stroke-dasharray: 1400;
  stroke-dashoffset: 1400;
  animation: arc-draw 1.8s cubic-bezier(.22,.61,.36,1) .2s forwards;
}
.arc__node {
  fill: var(--ink);
  opacity: 0;
  animation: arc-node .5s ease forwards;
}
.arc__node { animation-delay: .5s; }
.arc__node--far { animation-delay: 1.85s; }

@keyframes arc-draw { to { stroke-dashoffset: 0; } }
@keyframes arc-node { to { opacity: 1; } }

/* ---------- Proof strip ---------- */

.proof { padding-block: clamp(40px, 6vw, 64px); }
.proof__inner {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 14px 40px;
}
.proof__label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--slate);
  margin: 0;
}
.proof__list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 34px;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.1vw, 1.5rem);
  font-weight: 600;
  letter-spacing: -0.022em;
}

/* ---------- Work rows ---------- */

.work { padding-bottom: 0; }

.row {
  display: grid;
  grid-template-columns: minmax(240px, 340px) minmax(0, 1fr);
  gap: 28px clamp(40px, 7vw, 96px);
  padding-block: clamp(48px, 7vw, 76px);
}
.row + .row { border-top: 1px solid var(--hairline); }

.row__head { align-self: start; }

.crossing {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 9px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate);
  margin: 0 0 16px;
}
.crossing i { font-style: normal; color: var(--ink); }
.crossing span:last-child {
  background: var(--aurora);
  color: var(--ink);
  padding: 3px 8px;
  border-radius: 4px;
}

.row__title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.028em;
  margin: 0;
}

.portrait {
  width: 100%;
  max-width: 230px;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--hairline);
  margin: 0 0 26px;
}
.row__sub { font-size: 14px; color: var(--slate); margin: 10px 0 0; }
.contacts { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.contacts a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  background: var(--paper);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  font-size: 14px;
  text-decoration: none;
  color: var(--ink);
  transition: border-color .18s ease, transform .18s ease;
}
.contacts a:hover { border-color: var(--ink); transform: translateY(-1px); }
.contacts svg { width: 16px; height: 16px; fill: currentColor; flex-shrink: 0; }

.row__body { color: var(--ink-soft); max-width: 62ch; }
.row__body p:last-of-type { margin-bottom: 0; }

.marks {
  display: grid;
  gap: 10px 32px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--hairline);
  font-size: 15.5px;
  color: var(--ink);
}
.marks--two { grid-template-columns: repeat(auto-fit, minmax(258px, 1fr)); }
.marks li { position: relative; padding-left: 20px; line-height: 1.5; }
.marks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 9px;
  height: 2px;
  background: var(--aurora);
}

/* ---------- About ---------- */

.about { background: var(--paper-warm); }
.about .row { padding-block: clamp(60px, 8vw, 92px); }

.status {
  margin-top: 34px;
  padding: 22px 26px;
  background: var(--ink);
  border-radius: var(--radius);
  color: #C9C7C0;
}
.status__label {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--aurora);
  margin: 0 0 10px;
}
.status__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--aurora);
  animation: status-pulse 2.4s ease-in-out infinite;
}
.status__text { margin: 0; font-size: 15.5px; line-height: 1.6; }

@keyframes status-pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

/* ---------- Closing call to action ---------- */

.cta { background: var(--ink); color: var(--paper); }
.cta__inner {
  padding-block: clamp(76px, 11vw, 132px);
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
}
.cta__title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4.4vw, 3.1rem);
  font-weight: 600;
  line-height: 1.06;
  letter-spacing: -0.032em;
  margin: 0 0 22px;
}
.cta__lede {
  color: #C9C7C0;
  font-size: 1.07rem;
  margin-bottom: 38px;
}

/* ---------- Footer ---------- */

.footer {
  background: var(--ink);
  color: #8C8A83;
  border-top: 1px solid #262622;
  font-size: 14px;
}
.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 24px 40px;
  padding-block: 40px 48px;
}
.footer__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--paper);
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.015em;
}
.footer__meta { text-align: right; }
.footer__meta p { margin: 0 0 6px; }
.footer__meta a { color: var(--paper); text-decoration: none; border-bottom: 1px solid #3B3B36; }
.footer__meta a:hover { border-bottom-color: var(--aurora); }
.footer__year { color: #7A7872; }

/* ---------- Legal pages ---------- */

.doc { padding-block: clamp(56px, 8vw, 96px); max-width: 720px; }
.doc h1 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 0 0 12px;
}
.doc h2 {
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 600;
  letter-spacing: -0.018em;
  margin: 40px 0 10px;
}
.doc__updated { color: var(--slate); font-size: 14px; margin-bottom: 40px; }
.doc__back { display: inline-block; margin-top: 48px; font-size: 15px; }
.doc ul { list-style: disc; padding-left: 20px; margin-bottom: 1.1em; }
.doc li { margin-bottom: 6px; }

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .row { grid-template-columns: 1fr; gap: 20px; }
  .footer__inner { flex-direction: column; }
  .footer__meta { text-align: left; }
}

@media (max-width: 680px) {
  body { font-size: 16px; }
  .masthead__nav a:not(.btn) { display: none; }
  .masthead__logo img { width: 142px; }
  .hero__title { max-width: none; }
  .cta__inner { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .arc__span { animation: none; stroke-dashoffset: 0; }
  .arc__node { animation: none; opacity: 1; }
  .btn, .btn::after { transition: none; }
  .contacts a { transition: none; }
  .status__dot { animation: none; opacity: 1; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; }
}