/* ==========================================================================
   For Us — design tokens
   Ink (deep aubergine) · Paper (pale lavender-white) · Gold · Rose · Mist
   ========================================================================== */

:root {
  --ink: #1B1027;
  --ink-soft: #2E1F3D;
  --paper: #F7F2F9;
  --paper-dim: #ECE3F0;
  --gold: #D6A24C;
  --gold-soft: #E8C384;
  --rose: #C97B93;
  --mist: #8B7E99;
  --line: rgba(27, 16, 39, 0.12);

  --display: 'Fraunces', Georgia, serif;
  --body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'Space Mono', 'Courier New', monospace;

  --max: 1120px;
  --pad: clamp(1.25rem, 4vw, 3rem);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a {
  color: inherit;
  text-decoration-color: var(--rose);
  text-underline-offset: 3px;
}

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 500;
  line-height: 1.05;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rose);
  display: inline-block;
  margin-bottom: 0.9em;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 242, 249, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.wordmark {
  font-family: var(--display);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: 0.15em;
}
.wordmark em {
  font-style: italic;
  color: var(--rose);
}
.wordmark .dot {
  color: var(--gold);
  font-size: 1.3rem;
  line-height: 0;
}

nav.primary {
  display: flex;
  align-items: center;
  gap: 2rem;
}
nav.primary a {
  font-size: 0.92rem;
  text-decoration: none;
  color: var(--ink-soft);
  position: relative;
}
nav.primary a[aria-current="page"] {
  color: var(--ink);
}
nav.primary a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 2px;
  background: var(--gold);
}

.nav-toggle { display: none; }

@media (max-width: 720px) {
  nav.primary {
    position: fixed;
    inset: 76px 0 0 0;
    background: var(--paper);
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    gap: 1.6rem;
    padding: 2.2rem var(--pad);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
  }
  nav.primary.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  nav.primary a { font-size: 1.25rem; }
  .nav-toggle {
    display: block;
    background: none;
    border: none;
    font-family: var(--mono);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    cursor: pointer;
    color: var(--ink);
  }
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  border-radius: 999px;
  padding: 0.85em 1.6em;
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, border-color .15s ease;
}
.btn:focus-visible, a:focus-visible, button:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}
.btn-solid {
  background: var(--ink);
  color: var(--paper);
}
.btn-solid:hover { transform: translateY(-1px); background: var(--ink-soft); }

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}
.btn-ghost:hover { border-color: var(--rose); }

.btn-pill-soft {
  background: var(--paper-dim);
  color: var(--mist);
  cursor: default;
}

/* ---------- hero ---------- */

.hero {
  padding: clamp(3rem, 8vw, 6rem) 0 clamp(2rem, 6vw, 4rem);
}
.hero .wrap {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; }
}

.hero h1 {
  font-size: clamp(2.4rem, 5.2vw, 3.6rem);
}
.hero h1 em {
  font-style: italic;
  color: var(--rose);
}
.hero p.lede {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 42ch;
  margin: 0 0 1.8rem;
}
.hero .cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  align-items: center;
}

/* signature: interlocking circles */

.venn {
  position: relative;
  width: min(420px, 90vw);
  height: min(420px, 90vw);
  margin: 0 auto;
}
.venn .circle {
  position: absolute;
  top: 50%;
  width: 62%;
  height: 62%;
  border-radius: 50%;
  mix-blend-mode: multiply;
}
.venn .circle.a {
  left: 30%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle at 35% 30%, var(--gold-soft), var(--gold));
  animation: drift-a 9s ease-in-out infinite;
}
.venn .circle.b {
  left: 70%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle at 65% 30%, var(--rose), #a85c74);
  animation: drift-b 9s ease-in-out infinite;
}
@keyframes drift-a {
  0%, 100% { left: 30%; }
  50% { left: 34%; }
}
@keyframes drift-b {
  0%, 100% { left: 70%; }
  50% { left: 66%; }
}
.venn .overlap-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 18%;
}
.venn .overlap-text span {
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  color: var(--paper);
  text-shadow: 0 1px 6px rgba(0,0,0,0.25);
  transition: opacity 0.5s ease;
}

/* ---------- sections ---------- */

section { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.section-ink {
  background: var(--ink);
  color: var(--paper);
}
.section-ink .eyebrow { color: var(--gold-soft); }
.section-ink .mist-text { color: rgba(247,242,249,0.7); }

.section-head {
  max-width: 60ch;
  margin-bottom: 2.6rem;
}
.section-head h2 { font-size: clamp(1.8rem, 3.4vw, 2.5rem); }
.section-head p { color: var(--mist); font-size: 1.05rem; }
.section-ink .section-head p { color: rgba(247,242,249,0.72); }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
@media (max-width: 860px) {
  .feature-grid { grid-template-columns: 1fr; }
}
.feature-card {
  background: var(--paper-dim);
  border-radius: 20px;
  padding: 1.8rem;
  border: 1px solid var(--line);
}
.section-ink .feature-card {
  background: rgba(247,242,249,0.06);
  border-color: rgba(247,242,249,0.14);
}
.feature-card .mark {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--gold);
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 0.9rem;
}
.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}
.feature-card p {
  color: var(--mist);
  font-size: 0.98rem;
  margin: 0;
}
.section-ink .feature-card p { color: rgba(247,242,249,0.72); }

/* download / CTA band */
.cta-band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  background: linear-gradient(135deg, var(--ink) 0%, #3B2650 100%);
  color: var(--paper);
  border-radius: 28px;
  padding: clamp(2rem, 5vw, 3.5rem);
}
.cta-band h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); margin-bottom: 0.4rem; }
.cta-band p { color: rgba(247,242,249,0.72); margin: 0; max-width: 44ch; }
.cta-actions { display: flex; flex-direction: column; gap: 0.6rem; align-items: flex-start; }
.cta-actions small { font-family: var(--mono); font-size: 0.72rem; color: rgba(247,242,249,0.55); }

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem 0;
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
}
.site-footer .foot-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-size: 0.9rem;
}
.site-footer .foot-links a { text-decoration: none; color: var(--ink-soft); }
.site-footer .foot-links a:hover { color: var(--rose); }
.site-footer .fine {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--mist);
}

/* ---------- legal / doc pages ---------- */

.doc {
  padding: clamp(2.5rem, 6vw, 4rem) 0 4rem;
}
.doc .wrap { max-width: 760px; }
.doc h1 { font-size: clamp(2rem, 4vw, 2.6rem); margin-bottom: 0.3rem; }
.doc .updated {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--mist);
  margin-bottom: 2.5rem;
  display: block;
}
.doc h2 {
  font-size: 1.3rem;
  margin-top: 2.4rem;
  padding-top: 0.4rem;
  border-top: 1px solid var(--line);
}
.doc h2:first-of-type { border-top: none; padding-top: 0; }
.doc p, .doc li { color: var(--ink-soft); font-size: 1rem; }
.doc ul { padding-left: 1.2rem; }
.doc a { color: var(--rose); }
.doc strong { color: var(--ink); }
.doc .callout {
  background: var(--paper-dim);
  border-left: 3px solid var(--gold);
  border-radius: 4px;
  padding: 1rem 1.2rem;
  font-size: 0.92rem;
  color: var(--ink-soft);
  margin: 1.5rem 0;
}

/* ---------- contact page specifics ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}
@media (max-width: 700px) {
  .contact-grid { grid-template-columns: 1fr; }
}
.contact-card {
  background: var(--paper-dim);
  border-radius: 18px;
  padding: 1.6rem;
  border: 1px solid var(--line);
}
.contact-card .mark {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--rose);
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 0.6rem;
}
.contact-card a.big-link {
  font-family: var(--display);
  font-size: 1.3rem;
  text-decoration: none;
  color: var(--ink);
}
.contact-card a.big-link:hover { color: var(--rose); }