/* parti studios — styles */

:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --ink: #14141a;
  --ink-soft: #4a4a55;
  --muted: #8a8a96;
  --line: #e6e3dc;
  --accent: #ff4d2e;
  --accent-ink: #ffffff;
  --dark: #111116;
  --dark-ink: #f4f2ee;
  --dark-soft: #a9a8b3;
  --radius: 18px;
  --max: 1160px;
  --gutter: clamp(16px, 4vw, 40px);
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0c10;
    --surface: #16161c;
    --ink: #f4f2ee;
    --ink-soft: #c2c1ca;
    --muted: #85848f;
    --line: #26262e;
    --dark: #16161c;
  }
}

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

html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }
p { margin: 0 0 1.1em; }

h1, h2, h3 { line-height: 1.1; letter-spacing: -0.02em; margin: 0 0 0.5em; font-weight: 700; }
h1 { font-size: clamp(2.6rem, 8vw, 6rem); letter-spacing: -0.04em; }
h2 { font-size: clamp(2rem, 4.5vw, 3.25rem); letter-spacing: -0.03em; }
h3 { font-size: 1.35rem; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

.skip-link {
  position: absolute; left: -9999px; top: 8px; z-index: 100;
  background: var(--accent); color: var(--accent-ink); padding: 8px 14px; border-radius: 8px;
}
.skip-link:focus { left: 8px; }

:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* ---------- Header ---------- */

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s;
}
.site-header.scrolled { border-bottom-color: var(--line); }

.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }

.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; font-size: 1.15rem; letter-spacing: -0.02em; }
.logo-mark {
  display: inline-grid; place-items: center;
  width: 34px; height: 34px; border-radius: 9px;
  background: var(--ink); color: var(--bg);
  font-family: var(--mono); font-size: 0.95rem; font-weight: 700;
}

.nav-links { display: flex; align-items: center; gap: 6px; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  text-decoration: none; font-size: 0.95rem; font-weight: 500;
  padding: 8px 14px; border-radius: 999px; color: var(--ink-soft);
  transition: color .15s, background .15s;
}
.nav-links a:hover { color: var(--ink); background: var(--line); }
.nav-links .nav-cta { background: var(--ink); color: var(--bg); margin-left: 6px; }
.nav-links .nav-cta:hover { background: var(--accent); color: var(--accent-ink); }

.nav-toggle {
  display: none; background: none; border: 0; padding: 10px; margin-right: -10px; cursor: pointer; color: var(--ink);
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: currentColor; margin: 5px 0; transition: transform .2s, opacity .2s; }
.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 2px;
    padding: 12px var(--gutter) 20px;
    background: var(--bg); border-bottom: 1px solid var(--line);
    display: none;
  }
  .nav-open .nav-links { display: flex; }
  .nav-links a { padding: 12px 14px; font-size: 1.05rem; }
  .nav-links .nav-cta { margin: 8px 0 0; text-align: center; }
}

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

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 24px; border-radius: 999px;
  font-weight: 600; font-size: 1rem; text-decoration: none;
  border: 1.5px solid transparent;
  transition: transform .15s, background .15s, color .15s, border-color .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: #e83c1e; }
.btn-ghost { border-color: currentColor; }
.btn-ghost:hover { background: currentColor; }
.btn-ghost:hover span { color: var(--dark); }
.btn .arrow { transition: transform .15s; }
.btn:hover .arrow { transform: translateX(3px); }

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

.hero { padding: clamp(64px, 12vw, 140px) 0 clamp(56px, 9vw, 110px); position: relative; overflow: hidden; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 28px;
}
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }

.hero h1 { max-width: 12ch; margin-bottom: 0.35em; }
.hero h1 .hash { color: var(--accent); }
.hero .lead { font-size: clamp(1.15rem, 2.2vw, 1.4rem); color: var(--ink-soft); max-width: 40ch; margin-bottom: 36px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-actions .btn-ghost { color: var(--ink); }
.hero-actions .btn-ghost:hover span { color: var(--bg); }

.hero-bg {
  position: absolute; inset: auto -10% -40% auto; width: min(620px, 70vw); aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, color-mix(in srgb, var(--accent) 40%, transparent), transparent 65%);
  filter: blur(40px); opacity: .55; pointer-events: none; z-index: -1;
}

/* ---------- Definition ---------- */

.definition {
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  padding: clamp(48px, 8vw, 88px) 0;
}
.definition-grid { display: grid; grid-template-columns: 1fr 2fr; gap: 40px; align-items: start; }
.definition-term { font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; letter-spacing: -0.03em; line-height: 1.1; }
.definition-term small { display: block; font-family: var(--mono); font-size: 0.9rem; font-weight: 400; color: var(--muted); letter-spacing: 0; margin-top: 10px; }
.definition-text { font-size: clamp(1.2rem, 2.4vw, 1.6rem); line-height: 1.45; color: var(--ink-soft); }
.definition-text strong { color: var(--ink); font-weight: 600; }
@media (max-width: 720px) { .definition-grid { grid-template-columns: 1fr; gap: 16px; } }

/* ---------- Sections ---------- */

.section { padding: clamp(72px, 11vw, 130px) 0; }
.section-head { display: grid; grid-template-columns: 1fr 1fr; gap: 24px 56px; align-items: end; margin-bottom: clamp(40px, 6vw, 64px); }
.section-head p { color: var(--ink-soft); margin: 0; }
.section-label { font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); margin-bottom: 14px; display: block; }
@media (max-width: 820px) { .section-head { grid-template-columns: 1fr; } }

/* Services */
.services { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.service {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(28px, 4vw, 40px); position: relative;
  transition: transform .2s, border-color .2s, box-shadow .2s;
}
.service:hover { transform: translateY(-3px); border-color: var(--ink); box-shadow: 0 18px 40px -24px rgba(0,0,0,.35); }
.service-num { font-family: var(--mono); font-size: 0.85rem; color: var(--muted); margin-bottom: 40px; display: block; }
.service h3 { font-size: clamp(1.35rem, 2.4vw, 1.7rem); }
.service p { color: var(--ink-soft); margin: 0; }
@media (max-width: 720px) { .services { grid-template-columns: 1fr; } }

/* Statement */
.statement { background: var(--dark); color: var(--dark-ink); }
.statement .section-label { color: var(--accent); }
.statement h2 { max-width: 18ch; }
.statement-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: end; }
.statement p { color: var(--dark-soft); font-size: 1.1rem; }
.statement .btn-ghost { color: var(--dark-ink); }
.statement .quote { font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 600; color: var(--dark-ink); letter-spacing: -0.02em; line-height: 1.25; margin: 0 0 28px; }
@media (max-width: 820px) { .statement-grid { grid-template-columns: 1fr; gap: 24px; } }

/* About */
.about-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 56px; }
.about-text { font-size: 1.15rem; color: var(--ink-soft); }
.about-text p:first-child { font-size: clamp(1.3rem, 2.4vw, 1.6rem); line-height: 1.4; color: var(--ink); font-weight: 500; letter-spacing: -0.01em; }
.pillars { list-style: none; padding: 0; margin: 32px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.pillars li { border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; font-size: 0.92rem; color: var(--ink-soft); background: var(--surface); }
@media (max-width: 820px) { .about-grid { grid-template-columns: 1fr; gap: 16px; } }

/* Insights */
.insights { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.insight {
  display: flex; flex-direction: column; text-decoration: none;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(28px, 4vw, 40px); min-height: 280px;
  transition: transform .2s, border-color .2s;
}
.insight:hover { transform: translateY(-3px); border-color: var(--ink); }
.insight-tag { font-family: var(--mono); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); }
.insight h3 { font-size: clamp(1.5rem, 3vw, 2rem); margin: 18px 0 12px; }
.insight p { color: var(--ink-soft); }
.insight-meta { margin-top: auto; display: flex; justify-content: space-between; align-items: center; font-size: 0.9rem; color: var(--muted); padding-top: 20px; border-top: 1px solid var(--line); }
.insight-meta .arrow { color: var(--ink); font-size: 1.2rem; transition: transform .15s; }
.insight:hover .insight-meta .arrow { transform: translateX(4px); }
@media (max-width: 720px) { .insights { grid-template-columns: 1fr; } }

/* Contact */
.contact { background: var(--accent); color: var(--accent-ink); }
.contact .section-label { color: var(--accent-ink); opacity: .8; }
.contact h2 { font-size: clamp(2.6rem, 7vw, 5.5rem); letter-spacing: -0.04em; max-width: 14ch; }
.contact-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 56px; align-items: end; }
.contact p { font-size: 1.15rem; opacity: .92; }
.contact-links { display: flex; flex-direction: column; gap: 10px; }
.contact-link {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  text-decoration: none; font-size: clamp(1.1rem, 2.4vw, 1.45rem); font-weight: 600;
  padding: 20px 0; border-bottom: 1.5px solid rgba(255,255,255,.35);
  overflow-wrap: anywhere;
}
.contact-link small { display: block; font-family: var(--mono); font-size: 0.78rem; font-weight: 400; text-transform: uppercase; letter-spacing: .08em; opacity: .75; }
.contact-link .arrow { transition: transform .15s; flex-shrink: 0; }
.contact-link:hover .arrow { transform: translateX(4px); }
@media (max-width: 820px) { .contact-grid { grid-template-columns: 1fr; gap: 24px; } }

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

.site-footer { background: var(--dark); color: var(--dark-soft); padding: 64px 0 32px; font-size: 0.95rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 56px; }
.site-footer .logo { color: var(--dark-ink); margin-bottom: 14px; }
.site-footer .logo-mark { background: var(--dark-ink); color: var(--dark); }
.site-footer h4 { color: var(--dark-ink); font-size: 0.82rem; font-family: var(--mono); text-transform: uppercase; letter-spacing: .08em; font-weight: 500; margin: 0 0 14px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--dark-ink); }
.footer-bottom { border-top: 1px solid #2a2a33; padding-top: 24px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; font-size: 0.88rem; }
@media (max-width: 820px) { .footer-grid { grid-template-columns: 1fr 1fr; } .footer-brand { grid-column: 1 / -1; } }

/* ---------- Article / legal pages ---------- */

.page-head { padding: clamp(56px, 9vw, 110px) 0 clamp(32px, 5vw, 56px); border-bottom: 1px solid var(--line); }
.page-head h1 { font-size: clamp(2.4rem, 6vw, 4.5rem); max-width: 18ch; }
.page-head .lead { font-size: clamp(1.1rem, 2vw, 1.3rem); color: var(--ink-soft); max-width: 50ch; margin: 0; }
.back-link { display: inline-flex; gap: 8px; text-decoration: none; color: var(--muted); font-size: 0.95rem; margin-bottom: 28px; }
.back-link:hover { color: var(--ink); }
.byline { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-top: 28px; font-size: 0.95rem; color: var(--muted); }
.byline strong { color: var(--ink); font-weight: 600; }

.prose { max-width: 720px; padding: clamp(40px, 6vw, 72px) 0 clamp(72px, 10vw, 120px); }
.prose h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); margin: 2em 0 0.6em; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 1.2rem; margin: 1.8em 0 0.5em; }
.prose p, .prose li { color: var(--ink-soft); }
.prose strong { color: var(--ink); }
.prose a { color: var(--accent); }
.prose blockquote {
  margin: 2em 0; padding: 0 0 0 24px; border-left: 3px solid var(--accent);
  font-size: clamp(1.3rem, 2.6vw, 1.65rem); font-weight: 600; line-height: 1.35; color: var(--ink); letter-spacing: -0.01em;
}
.prose address { font-style: normal; color: var(--ink-soft); margin-bottom: 1.1em; }

.note { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 16px 20px; font-size: 0.95rem; color: var(--muted); }

/* ---------- Reveal ---------- */

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { transition: none !important; }
}