/* =========================================================
   IPS — Intellectual Property Services
   Editorial "patent-atelier" aesthetic
   Ivory paper · ink · brass · Fraunces / Archivo
   ========================================================= */

:root {
  --paper:      #f6f1e6;
  --paper-2:    #efe8d8;
  --ink:        #191b20;
  --ink-soft:   #3a3d46;
  --muted:      #6b6a63;
  --brass:      #9a6a2f;
  --brass-lt:   #b98a44;
  --line:       #d8cfba;
  --line-ink:   rgba(25,27,32,.12);
  --white:      #fbf8f1;

  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans:  "Archivo", "Helvetica Neue", Arial, sans-serif;

  --maxw: 1200px;
  --gutter: clamp(20px, 5vw, 72px);
  --ease: cubic-bezier(.22, .61, .36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  font-weight: 400;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
/* subtle paper grain */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  opacity: .04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 400; margin: 0; line-height: 1.05; }
h1 em, h2 em { font-style: italic; color: var(--brass); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); position: relative; z-index: 1; }

.eyebrow {
  font-family: var(--sans);
  font-size: .72rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--brass);
  display: inline-flex; align-items: center; gap: .7em;
}
.eyebrow::before {
  content: ""; width: 34px; height: 1px; background: var(--brass); display: inline-block;
}

/* ---------- Buttons ---------- */
.btn {
  --pad: .95em 1.7em;
  display: inline-flex; align-items: center; gap: .6em;
  font-family: var(--sans); font-size: .82rem; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase;
  padding: var(--pad);
  border: 1px solid var(--ink);
  background: var(--ink); color: var(--paper);
  cursor: pointer; transition: all .35s var(--ease);
  border-radius: 0;
}
.btn:hover { background: var(--brass); border-color: var(--brass); color: var(--white); transform: translateY(-2px); }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); transform: translateY(-2px); }
.btn .arw { transition: transform .35s var(--ease); }
.btn:hover .arw { transform: translateX(4px); }

/* =========================================================
   Header
   ========================================================= */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-ink);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 76px;
}
.brand { display: flex; align-items: baseline; gap: .55em; }
.brand .mark {
  font-family: var(--serif); font-weight: 600; font-size: 1.5rem; letter-spacing: .02em;
}
.brand .mark sup { font-size: .5em; color: var(--brass); top: -.9em; }
.brand .sub {
  font-family: var(--sans); font-size: .6rem; letter-spacing: .22em; text-transform: uppercase;
  color: var(--muted); font-weight: 600;
}
.nav-links { display: flex; align-items: center; gap: 2.1rem; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  font-size: .8rem; letter-spacing: .05em; font-weight: 500; color: var(--ink-soft);
  position: relative; padding: .3em 0;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; width: 0; height: 1.5px;
  background: var(--brass); transition: width .3s var(--ease);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { width: 100%; }
.nav-cta { display: flex; align-items: center; gap: 1.2rem; }
.nav-phone { font-size: .82rem; font-weight: 600; letter-spacing: .02em; white-space: nowrap; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; transition: .3s; }

/* =========================================================
   Hero
   ========================================================= */
.hero { position: relative; padding: clamp(48px, 9vw, 120px) 0 clamp(40px, 6vw, 80px); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(24px, 5vw, 64px); align-items: end; }
.hero h1 {
  font-size: clamp(2.7rem, 7.5vw, 6.2rem);
  letter-spacing: -.02em; margin: .35em 0 .5em;
}
.hero h1 .line { display: block; overflow: hidden; }
.hero h1 .line > span { display: block; transform: translateY(105%); animation: rise 1.05s var(--ease) forwards; }
.hero h1 .line:nth-child(1) > span { animation-delay: .05s; }
.hero h1 .line:nth-child(2) > span { animation-delay: .16s; }
.hero h1 .line:nth-child(3) > span { animation-delay: .27s; }
@keyframes rise { to { transform: translateY(0); } }

.hero-lede {
  font-size: 1.06rem; color: var(--ink-soft); max-width: 46ch; margin: 0 0 2em;
  opacity: 0; animation: fade .9s var(--ease) .5s forwards;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; opacity: 0; animation: fade .9s var(--ease) .65s forwards; }
@keyframes fade { to { opacity: 1; } }

.hero-aside { position: relative; opacity: 0; animation: fade 1s var(--ease) .6s forwards; }
.hero-figure {
  border: 1px solid var(--line-ink); background: var(--white);
  padding: 26px 26px 20px; position: relative;
}
.hero-figure::before, .hero-figure::after {
  content: ""; position: absolute; width: 10px; height: 10px; border: 1px solid var(--brass);
}
.hero-figure::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.hero-figure::after { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }
.hero-figure svg { width: 100%; height: auto; }
.hero-figcap {
  display: flex; justify-content: space-between; margin-top: 14px;
  font-size: .64rem; letter-spacing: .16em; text-transform: uppercase; color: var(--muted);
}

/* rotating focus word */
.hero-tag { font-family: var(--serif); font-style: italic; color: var(--brass); }

/* =========================================================
   Stats marquee
   ========================================================= */
.stats {
  border-top: 1px solid var(--line-ink); border-bottom: 1px solid var(--line-ink);
  background: var(--ink); color: var(--paper);
}
.stats .wrap { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 40px 24px; border-left: 1px solid rgba(255,255,255,.1); }
.stat:first-child { border-left: 0; }
.stat .num {
  font-family: var(--serif); font-size: clamp(2.4rem, 4.5vw, 3.6rem); line-height: 1;
  letter-spacing: -.01em;
}
.stat .num em { font-style: normal; color: var(--brass-lt); }
.stat .lbl { font-size: .74rem; letter-spacing: .14em; text-transform: uppercase; color: rgba(246,241,230,.62); margin-top: .8em; }

/* =========================================================
   Section scaffolding
   ========================================================= */
section { position: relative; }
.section { padding: clamp(64px, 10vw, 140px) 0; }
.section-head { max-width: 62ch; margin-bottom: clamp(40px, 6vw, 72px); }
.section-head h2 { font-size: clamp(2rem, 5vw, 3.5rem); letter-spacing: -.02em; margin-top: .4em; }
.section-head p { color: var(--ink-soft); font-size: 1.05rem; margin: 1.2em 0 0; max-width: 52ch; }

.alt { background: var(--paper-2); }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* =========================================================
   Services
   ========================================================= */
.services { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; border-top: 1px solid var(--line-ink); }
.service {
  padding: clamp(30px, 4vw, 48px) clamp(24px, 3vw, 44px);
  border-bottom: 1px solid var(--line-ink); border-right: 1px solid var(--line-ink);
  position: relative; transition: background .4s var(--ease);
}
.services .service:nth-child(2n) { border-right: 0; }
.service:hover { background: var(--white); }
.service .idx { font-family: var(--serif); font-size: .9rem; color: var(--brass); letter-spacing: .05em; }
.service h3 { font-size: clamp(1.4rem, 2.4vw, 1.95rem); margin: .5em 0 .5em; letter-spacing: -.01em; }
.service p { color: var(--ink-soft); font-size: .96rem; margin: 0 0 1.3em; }
.service ul { list-style: none; margin: 0 0 1.4em; padding: 0; }
.service li { font-size: .88rem; color: var(--muted); padding: .35em 0 .35em 1.3em; position: relative; border-top: 1px solid var(--line-ink); }
.service li:first-child { border-top: 0; }
.service li::before { content: "→"; position: absolute; left: 0; color: var(--brass); }
.service .more { font-size: .74rem; letter-spacing: .16em; text-transform: uppercase; font-weight: 600; color: var(--ink); display: inline-flex; gap: .5em; align-items: center; }
.service .more .arw { transition: transform .3s var(--ease); }
.service:hover .more .arw { transform: translateX(5px); }

/* =========================================================
   Process timeline
   ========================================================= */
.process-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(30px, 6vw, 80px); align-items: start; }
.steps { list-style: none; margin: 0; padding: 0; }
.step { display: grid; grid-template-columns: auto 1fr; gap: 1.4rem; padding: 1.6rem 0; border-top: 1px solid var(--line-ink); }
.step:last-child { border-bottom: 1px solid var(--line-ink); }
.step .n {
  font-family: var(--serif); font-size: 1.1rem; color: var(--paper); background: var(--ink);
  width: 42px; height: 42px; display: grid; place-items: center; border-radius: 50%;
}
.step h4 { font-family: var(--sans); font-weight: 700; font-size: 1rem; letter-spacing: .01em; margin-bottom: .35em; }
.step p { margin: 0; color: var(--ink-soft); font-size: .92rem; }
.step .when { display: inline-block; margin-top: .6em; font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; color: var(--brass); font-weight: 600; }
.process-aside { position: sticky; top: 110px; }
.process-note { border: 1px solid var(--line-ink); background: var(--white); padding: 34px; }
.process-note .big { font-family: var(--serif); font-size: clamp(2.2rem,4vw,3rem); line-height: 1; margin-bottom: .3em; }
.process-note p { color: var(--ink-soft); font-size: .95rem; margin: .8em 0 0; }

/* =========================================================
   Why / values
   ========================================================= */
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(24px, 4vw, 48px); }
.value { padding-top: 1.6rem; border-top: 2px solid var(--ink); }
.value h3 { font-size: 1.5rem; margin-bottom: .5em; }
.value p { color: var(--ink-soft); font-size: .96rem; margin: 0; }

/* =========================================================
   Team
   ========================================================= */
.team { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line-ink); border: 1px solid var(--line-ink); }
.member { background: var(--paper); transition: background .4s var(--ease); }
.member:hover { background: var(--white); }
.member-photo {
  position: relative; aspect-ratio: 3 / 4; overflow: hidden; background: var(--paper-2);
}
.member-photo img {
  width: 100%; height: 100%; object-fit: cover; object-position: center top;
  transition: transform .9s var(--ease);
}
/* subtle brass wash at the base for caption legibility, lifts on hover */
.member-photo::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, transparent 55%, rgba(25,27,32,.28));
  opacity: 1; transition: opacity .5s var(--ease);
}
.member:hover .member-photo img { transform: scale(1.04); }
.member:hover .member-photo::after { opacity: .5; }
.member-photo .ini {
  position: absolute; left: 16px; bottom: 12px; z-index: 2;
  font-family: var(--serif); font-size: 1.5rem; color: var(--paper);
  text-shadow: 0 1px 8px rgba(0,0,0,.5); letter-spacing: .04em;
  opacity: 0; transform: translateY(6px); transition: all .4s var(--ease);
}
.member:hover .member-photo .ini { opacity: 0; }
.member-body { padding: 24px 26px 30px; }
.member h4 { font-family: var(--serif); font-size: 1.3rem; margin-bottom: .35em; }
.member .role { font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }

/* =========================================================
   Sectors band
   ========================================================= */
.sectors { display: flex; flex-wrap: wrap; gap: .6rem 1.8rem; }
.sectors span {
  font-family: var(--serif); font-size: clamp(1.3rem, 3vw, 2.2rem); color: var(--ink);
  padding: .1em .1em; position: relative;
}
.sectors span:hover { color: var(--brass); font-style: italic; }

/* =========================================================
   CTA
   ========================================================= */
.cta { background: var(--ink); color: var(--paper); }
.cta .wrap { padding: clamp(60px, 9vw, 120px) var(--gutter); text-align: center; }
.cta h2 { font-size: clamp(2.2rem, 6vw, 4.4rem); letter-spacing: -.02em; margin: 0 auto .6em; max-width: 18ch; }
.cta h2 em { color: var(--brass-lt); }
.cta p { color: rgba(246,241,230,.7); max-width: 46ch; margin: 0 auto 2.4em; }
.cta .btn { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.cta .btn:hover { background: var(--brass); border-color: var(--brass); color: var(--white); }

/* =========================================================
   Contact
   ========================================================= */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(30px, 6vw, 80px); }
.contact-list { list-style: none; margin: 0; padding: 0; }
.contact-list li { border-top: 1px solid var(--line-ink); padding: 1.4rem 0; display: grid; grid-template-columns: 130px 1fr; gap: 1rem; }
.contact-list li:last-child { border-bottom: 1px solid var(--line-ink); }
.contact-list .k { font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); padding-top: .2em; }
.contact-list .v { font-size: 1.05rem; }
.contact-list .v a:hover { color: var(--brass); }

/* =========================================================
   FAQ (faq.html)
   ========================================================= */
.faq-list { max-width: 900px; }
.faq-item { border-top: 1px solid var(--line-ink); }
.faq-list .faq-item:last-child { border-bottom: 1px solid var(--line-ink); }
.faq-q {
  width: 100%; text-align: left; background: none; border: 0; cursor: pointer;
  display: grid; grid-template-columns: auto 1fr auto; gap: 1.2rem; align-items: baseline;
  padding: 1.5rem 0; font-family: var(--serif); font-size: clamp(1.05rem, 2vw, 1.4rem); color: var(--ink);
}
.faq-q .qn { font-size: .85rem; color: var(--brass); font-family: var(--sans); font-weight: 600; }
.faq-q .ic { font-family: var(--sans); font-size: 1.5rem; color: var(--brass); transition: transform .35s var(--ease); line-height: 1; }
.faq-item[aria-expanded="true"] .faq-q .ic { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .45s var(--ease); }
.faq-a-inner { padding: 0 0 1.6rem calc(.85rem + 1.2rem + 2ch); color: var(--ink-soft); font-size: .98rem; max-width: 70ch; }

.page-hero { padding: clamp(60px, 10vw, 130px) 0 clamp(30px, 5vw, 60px); }
.page-hero h1 { font-size: clamp(2.6rem, 7vw, 5.5rem); letter-spacing: -.02em; margin: .3em 0 .3em; }
.page-hero p { color: var(--ink-soft); max-width: 52ch; font-size: 1.05rem; }

/* =========================================================
   Footer
   ========================================================= */
.site-footer { background: var(--ink); color: var(--paper); padding: clamp(56px, 8vw, 90px) 0 40px; }
.footer-top { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 40px; padding-bottom: 50px; border-bottom: 1px solid rgba(255,255,255,.12); }
.footer-brand .mark { font-family: var(--serif); font-size: 2rem; }
.footer-brand .mark sup { color: var(--brass-lt); font-size: .5em; }
.footer-brand p { color: rgba(246,241,230,.6); max-width: 34ch; font-size: .92rem; margin-top: 1em; }
.footer-col h5 { font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; color: var(--brass-lt); margin: 0 0 1.2em; font-family: var(--sans); font-weight: 600; }
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: .8em; }
.footer-col a { color: rgba(246,241,230,.75); font-size: .9rem; }
.footer-col a:hover { color: var(--brass-lt); }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding-top: 26px; font-size: .76rem; color: rgba(246,241,230,.5); letter-spacing: .04em; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 960px) {
  .hero-grid, .process-grid, .contact-grid { grid-template-columns: 1fr; }
  .hero-aside { display: none; }
  .stats .wrap { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: 0; }
  .stat { border-top: 1px solid rgba(255,255,255,.1); }
  .stat:nth-child(-n+2) { border-top: 0; }
  .services, .values, .team { grid-template-columns: 1fr; }
  .service { border-right: 0 !important; }
  .value { }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .process-aside { position: static; }
}
@media (max-width: 640px) {
  .nav-links, .nav-phone { display: none; }
  .nav-toggle { display: block; }
  .nav.open .nav-links {
    display: flex; position: absolute; top: 76px; left: 0; right: 0; flex-direction: column;
    align-items: flex-start; gap: 0; background: var(--paper); border-bottom: 1px solid var(--line-ink);
    padding: 10px var(--gutter) 24px;
  }
  .nav.open .nav-links li { width: 100%; }
  .nav.open .nav-links a { display: block; padding: .9em 0; border-top: 1px solid var(--line-ink); width: 100%; }
  .team { grid-template-columns: 1fr; }
  .contact-list li { grid-template-columns: 1fr; gap: .3rem; }
  .footer-top { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  .hero h1 .line > span { transform: none; }
}