/* ============================================================
   Meridian — AI for institutional finance
   Monochrome, editorial. Display: Fraunces · UI/body: Inter
   ============================================================ */

:root{
  --ink:#0a0a0a;
  --ink-2:#5a5a58;
  --ink-3:#6a6a65;   /* 5.44:1 on white; #8a8a86 failed AA at 3.47 */
  --paper:#ffffff;
  --paper-2:#f5f4f1;
  --card:#ecebe7;
  --line:#e3e2dd;

  --shell:1320px;
  --gut:44px;
  --t:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  margin:0;background:var(--paper);color:var(--ink);
  font:400 16px/1.6 Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
img,svg{display:block;max-width:100%}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0}
ul{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}

.sr,.skip{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip:focus{position:fixed;top:12px;left:12px;width:auto;height:auto;clip:auto;z-index:200;background:var(--ink);color:#fff;padding:10px 16px;border-radius:6px}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px}

.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gut)}
.sprite{position:absolute;width:0;height:0;overflow:hidden}
.ic{--sz:22px;width:var(--sz);height:var(--sz);flex:none;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}

/* ── display type: refined serif, tight tracking (rogo-like) ── */
.display{
  font-family:Fraunces,Georgia,"Times New Roman",serif;
  font-weight:400;font-optical-sizing:auto;
  font-size:clamp(42px,5vw,64px);line-height:.98;letter-spacing:-.045em;text-wrap:balance;
}
.display--md{font-size:clamp(32px,3.8vw,48px);line-height:1.04;letter-spacing:-.04em}

/* ── buttons: small, 6px radius (rogo) ─────────────────── */
.btn{
  --bg:var(--ink);--fg:#fff;--bd:transparent;
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 18px;border:1px solid var(--bd);border-radius:6px;
  background:var(--bg);color:var(--fg);
  font:500 13px/1 Inter,sans-serif;letter-spacing:.005em;cursor:pointer;white-space:nowrap;
  transition:opacity .2s var(--t),background .2s var(--t),transform .2s var(--t);
}
.btn:hover{opacity:.86}
.btn:active{transform:translateY(1px)}
.btn--light{--bg:#fff;--fg:#000;--bd:transparent}
.btn--dark{--bg:var(--ink);--fg:#fff}
.btn--hero{padding:12px 24px;font-size:14px;margin-top:32px}
.btn--wide{justify-content:center;width:100%;margin-top:10px;padding:13px 18px}

/* ── nav (centered links) ─────────────────────────────── */
.nav{position:absolute;top:0;left:0;right:0;z-index:60;color:#fff}
.nav.is-stuck{position:fixed;color:var(--ink);background:rgba(255,255,255,.9);backdrop-filter:blur(14px) saturate(1.4);border-bottom:1px solid var(--line)}
.nav__in{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:78px;gap:20px}

.logo{display:inline-flex;align-items:center;gap:9px;justify-self:start}
.logo__mark{width:23px;height:23px;flex:none;color:inherit}
.logo__word{font-family:Fraunces,serif;font-size:22px;line-height:1;letter-spacing:-.02em}
.logo--dark{color:#fff}

.nav__links{display:flex;gap:8px;justify-self:center}
.nav__links a{padding:8px 12px;border-radius:6px;font-size:14px;color:inherit;opacity:.82;transition:opacity .2s var(--t),background .2s var(--t)}
.nav__links a:hover{opacity:1}

.nav__right{display:flex;align-items:center;gap:16px;justify-self:end}
.nav__login{font-size:14px;opacity:.82}
.nav__login:hover{opacity:1}

.burger{display:none;width:42px;height:42px;border:0;background:none;cursor:pointer;padding:13px 9px;flex-direction:column;justify-content:space-between}
.burger span{display:block;height:1.6px;background:currentColor;border-radius:2px;transition:transform .3s var(--t),opacity .3s var(--t)}
.burger[aria-expanded=true] span:first-child{transform:translateY(7.7px) rotate(45deg)}
.burger[aria-expanded=true] span:last-child{transform:translateY(-7.7px) rotate(-45deg)}

.mobile{display:none;flex-direction:column;gap:2px;padding:10px var(--gut) 24px;background:#fff;color:var(--ink);border-bottom:1px solid var(--line)}
.mobile a:not(.btn){padding:14px 2px;font-size:16px;border-bottom:1px solid var(--line)}

/* ── hero (photographic dusk skyline) ─────────────────── */
.hero{position:relative;min-height:clamp(620px,96vh,900px);display:flex;align-items:center;justify-content:center;overflow:hidden;color:#fff;text-align:center}
.hero__bg{position:absolute;inset:0;z-index:0;background:url("../img/hero.jpg") center 42%/cover no-repeat,#0c0b12;filter:saturate(.82) brightness(.78) contrast(1.03)}
.hero__scrim{position:absolute;inset:0;z-index:1;
  background:
    radial-gradient(120% 96% at 50% 40%,rgba(6,6,10,.12),rgba(6,6,10,.62) 78%),
    linear-gradient(180deg,rgba(6,6,10,.72) 0%,rgba(6,6,10,.28) 20%,rgba(6,6,10,.32) 58%,rgba(6,6,10,.82) 100%)}
.hero__in{position:relative;z-index:2;display:grid;justify-items:center;padding-top:78px}
.hero__sub{margin-top:22px;max-width:34ch;font-size:clamp(16px,1.4vw,18px);line-height:1.55;color:rgba(255,255,255,.88)}
.hero__credit{position:absolute;right:16px;bottom:12px;z-index:2;font-size:10.5px;letter-spacing:.02em;color:rgba(255,255,255,.4)}
.hero__credit a{color:inherit;text-decoration:underline;text-underline-offset:2px}
.hero__credit a:hover{color:rgba(255,255,255,.7)}

/* ── testimonials ─────────────────────────────────────── */
.testi{background:var(--paper-2);padding-block:120px 128px}
.testi__head{text-align:center;margin-bottom:64px}
.cards{display:grid;grid-template-columns:2fr 1fr 1fr;gap:16px;align-items:stretch}
.card{
  position:relative;display:flex;flex-direction:column;min-width:0;
  background:var(--card);border-radius:12px;padding:40px;min-height:420px;
}
.card__firm{overflow-wrap:anywhere}
.card--lead{padding:44px 48px}
.card__firm{font-family:Fraunces,serif;font-size:19px;letter-spacing:.14em;color:var(--ink);opacity:.72}
.card__firm--muted{opacity:.32}
.card blockquote{margin-top:34px;flex:1}
.card--lead blockquote p{font-family:Fraunces,serif;font-weight:400;font-size:clamp(20px,1.9vw,26px);line-height:1.32;letter-spacing:-.01em}
.card--fold blockquote p{font-family:Fraunces,serif;font-size:19px;line-height:1.34;letter-spacing:-.005em;margin-top:8px}
.card figcaption{display:grid;gap:3px;margin-top:auto;padding-top:26px}
.card__who{font-size:15px;font-weight:500}
.card__where{font-size:14px;color:var(--ink-3)}
.card__toggle{
  align-self:flex-start;margin-top:auto;width:40px;height:40px;display:grid;place-items:center;
  border:0;border-radius:9px;background:rgba(10,10,10,.06);color:var(--ink);cursor:pointer;
  transition:background .2s var(--t),transform .3s var(--t);
}
.card__toggle:hover{background:rgba(10,10,10,.12)}
.card__toggle[aria-expanded=true]{transform:rotate(45deg)}
.card--fold figcaption{margin-top:18px}
.card__hidden .ic,.card__toggle .ic{--sz:20px}

/* ── differentiators: sticky heading + list ───────────── */
.why{padding-block:130px}
.why__in{display:grid;grid-template-columns:.9fr 1.35fr;gap:clamp(40px,7vw,120px)}
.why__aside{align-self:start;position:sticky;top:120px}
.diffs{display:grid}
.diff{padding:52px 0;border-top:1px solid var(--line)}
.diff:first-child{border-top:0;padding-top:0}
.diff__ic{display:grid;place-items:center;width:52px;height:52px;border-radius:12px;background:var(--paper-2);border:1px solid var(--line);color:var(--ink);margin-bottom:26px}
.diff__ic .ic{--sz:24px}
.diff h3{font-size:clamp(20px,2vw,25px);font-weight:500;letter-spacing:-.01em;line-height:1.18;margin-bottom:15px}
.diff p{font-size:17px;line-height:1.58;color:var(--ink-2);max-width:54ch}

/* ── security (dark) ──────────────────────────────────── */
.security{background:var(--ink);color:#fff;padding-block:120px}
.security__head{text-align:center;margin-bottom:64px}
.badges{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.badge{display:grid;justify-items:center;text-align:center;gap:5px;padding:34px 16px;border:1px solid rgba(255,255,255,.13);border-radius:14px}
.badge__ic{display:grid;place-items:center;width:56px;height:56px;border-radius:50%;border:1px solid rgba(255,255,255,.22);color:rgba(255,255,255,.9);margin-bottom:10px}
.badge__ic .ic{--sz:24px}
.badge strong{font-size:15px;font-weight:500}
.badge small{font-size:12px;color:rgba(255,255,255,.5)}

/* ── cta ──────────────────────────────────────────────── */
.cta{background:var(--paper-2);padding-block:128px;text-align:center}
.cta__in{display:grid;justify-items:center}
.form{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:36px;width:100%;max-width:460px}
.form input{flex:1 1 240px;padding:13px 18px;border:1px solid var(--line);border-radius:6px;background:#fff;font:400 15px Inter,sans-serif;color:var(--ink);transition:border-color .2s var(--t)}
.form input::placeholder{color:var(--ink-3)}
.form input:focus{outline:0;border-color:var(--ink)}
.form__note{min-height:20px;margin-top:14px;font-size:13.5px;color:var(--ink-2)}

/* ── footer ───────────────────────────────────────────── */
.foot{background:var(--ink);color:#fff;padding:80px 0 40px}
.foot__cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1fr;gap:32px;padding-bottom:56px;border-bottom:1px solid rgba(255,255,255,.14)}
.foot__brand{max-width:260px}
.logo--dark .logo__word{color:#fff}
.foot__tag{margin-top:16px;font-size:14.5px;line-height:1.5;color:rgba(255,255,255,.56)}
.foot__cols h5{margin-bottom:16px;font-size:12px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.5)}
.foot__cols a{display:block;padding:6px 0;font-size:14.5px;color:rgba(255,255,255,.76);transition:color .2s var(--t)}
.foot__cols a:hover{color:#fff}
.foot__base{display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;padding-top:28px;font-size:13px;color:rgba(255,255,255,.5)}

/* ── reveal ───────────────────────────────────────────── */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--t),transform .6s var(--t)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.btn:hover{opacity:1}}

/* ── responsive ───────────────────────────────────────── */
@media (max-width:1000px){
  :root{--gut:28px}
  .nav__links,.nav__login{display:none}
  .nav__in{grid-template-columns:1fr auto}
  .burger{display:flex}
  .nav.is-open .mobile{display:flex}
  .cards{grid-template-columns:1fr 1fr;gap:14px}
  .card--lead{grid-column:1 / -1;min-height:0}
  .card{min-height:340px}
  .why__in{grid-template-columns:1fr;gap:40px}
  .why__aside{position:static}
  .diff:first-child{padding-top:44px;border-top:1px solid var(--line)}
  .badges{grid-template-columns:repeat(3,1fr)}
  .testi,.why,.security,.cta{padding-block:88px}
  .foot__cols{grid-template-columns:1fr 1fr 1fr;gap:30px 24px}
  .foot__brand{grid-column:1 / -1;max-width:none}
}
@media (max-width:560px){
  :root{--gut:20px}
  .hero{min-height:auto;padding-block:150px 96px}
  .cards{grid-template-columns:1fr}
  .card{min-height:0}
  .badges{grid-template-columns:1fr 1fr}
  .foot__cols{grid-template-columns:1fr 1fr}
  .form{flex-direction:column}
  .form input{flex:0 0 auto;width:100%}
  .form .btn{justify-content:center}
}