/* Layout: an editorial, private-bank feel. Large type, hairlines instead of boxes,
   alternating warm off-white and deep indigo-night chapters. Amber only for "message us". */
:root{
  --indigo:#24135F; --indigo-deep:#180B45; --indigo-night:#17014A;
  --amber:#FFB43D; --amber-hover:#FFC261; --on-amber:#24135F;
  --teal:#0B7A82; --teal-light:#5CC9D1;
  --surface:#FBF8F4; --surface-raised:#FFFFFF; --tint:#F3EEF9;
  --ink-strong:#24135F; --ink:#1C1638; --ink-muted:#5F5A73;
  --on-dark:#FFFFFF; --on-dark-muted:#C9C2E6; --line:#E6DFD4; --line-dark:rgba(255,255,255,.14);
  --grad-blue:#2A63D6; --grad-cyan:#08B2CA; --grad-mint:#4BF2CC;
  --grad-violet:#9B30C8; --grad-magenta:#C6207D; --grad-coral:#F78A64; --grad-gold:#F9CA5E;
  --line-warm:linear-gradient(90deg,var(--grad-violet),var(--grad-magenta),var(--grad-coral),var(--grad-gold));
  --line-cool:linear-gradient(90deg,var(--grad-blue),var(--grad-cyan),var(--grad-mint));
  --font:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --maxw:1200px;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
body{margin:0;background:var(--surface);color:var(--ink);font-family:var(--font);font-size:18px;line-height:1.6;font-weight:400}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:60;background:var(--surface)}
h1,h2,h3,p{margin:0}
h1,h2,h3{color:var(--ink-strong);text-wrap:balance}
a{color:inherit}
:focus-visible{outline:3px solid var(--teal);outline-offset:3px;border-radius:6px}
.dark :focus-visible{outline-color:var(--amber)}
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:max(24px,env(safe-area-inset-left,0px));padding-right:max(24px,env(safe-area-inset-right,0px))}
@media (max-width:560px){.wrap{padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}}
.chapter{padding-block:clamp(72px,11vw,148px)}
.dark{background:var(--indigo-night);color:var(--on-dark)}
.dark h2,.dark h3{color:var(--on-dark)}
.kicker{display:flex;align-items:center;gap:14px;font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--teal)}
.kicker::before{content:"";width:28px;height:2px;background:currentColor}
.dark .kicker{color:var(--amber)}
.h2{font-size:clamp(2rem,4.4vw,3.5rem);line-height:1.15;font-weight:600;letter-spacing:-.02em}
.lead{font-size:clamp(1.05rem,1.6vw,1.25rem);line-height:1.65;color:var(--ink-muted);font-weight:300}
.dark .lead{color:var(--on-dark-muted)}
.cz{font-weight:600;color:var(--ink-strong)}
.dark .cz{color:var(--on-dark)}

/* Button */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:56px;padding:0 28px;border-radius:999px;background:var(--amber);color:var(--on-amber);font-weight:600;font-size:1rem;text-decoration:none;transition:background .2s,transform .2s}
.btn:hover{background:var(--amber-hover);transform:translateY(-1px)}
.btn svg{width:22px;height:22px;flex:none}
/* Second CTA: call. Outlined so the amber "message us" stays the main action. */
.btn-call{background:transparent;color:var(--ink-strong);box-shadow:inset 0 0 0 1.5px var(--ink-strong)}
.btn-call:hover{background:rgba(36,19,95,.06)}
.dark .btn-call{color:var(--on-dark);box-shadow:inset 0 0 0 1.5px rgba(255,255,255,.6)}
.dark .btn-call:hover{background:rgba(255,255,255,.08)}
.cta-pair{display:flex;flex-wrap:wrap;gap:12px}
.btn-sm{min-height:44px;padding:0 18px;font-size:.92rem}
.textlink{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--ink-strong);text-decoration:none;border-bottom:2px solid var(--amber);padding-bottom:2px}

/* Header */
.site-header{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:rgba(251,248,244,.9);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:border-color .2s}
.site-header.scrolled{border-bottom-color:var(--line)}
.site-header .wrap{display:flex;align-items:center;gap:20px;min-height:76px}
.brand{display:block;line-height:0;text-decoration:none}
.brand svg{height:36px;width:auto;display:block}
.nav{display:flex;gap:32px;margin-left:40px}
.nav a{text-decoration:none;font-size:.95rem;font-weight:500;color:var(--ink)}
.nav a:hover{color:var(--teal)}
.actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.lang{display:inline-flex;gap:2px;font-size:.82rem;font-weight:600}
.lang button{border:0;background:none;font:inherit;color:var(--ink-muted);padding:8px 6px;cursor:pointer;letter-spacing:.06em}
.lang button[aria-pressed="true"]{color:var(--ink-strong);text-decoration:underline;text-decoration-color:var(--amber);text-decoration-thickness:2px;text-underline-offset:6px}
.lang span{color:var(--line);align-self:center}
.fb{display:inline-grid;place-items:center;width:40px;height:40px;color:var(--ink-strong)}
.fb svg{width:20px;height:20px}
.nav a,.actions .btn{white-space:nowrap}
/* Narrow desktops: tighter nav, call button shrinks to its phone icon */
@media (max-width:1199px){.nav{gap:22px;margin-left:24px}.hdr-call{width:44px;padding:0}.hdr-call .call-num{display:none}}
@media (max-width:960px){.nav{display:none}}
@media (max-width:600px){.actions .btn{display:none}.brand svg{height:30px}.site-header .wrap{min-height:64px}}

/* Hero */
.hero{padding-block:clamp(48px,8vw,112px) clamp(64px,9vw,120px)}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:clamp(40px,6vw,96px);align-items:end}
.hero h1{font-size:clamp(2.6rem,6.6vw,5.6rem);line-height:1.08;font-weight:600;letter-spacing:-.035em;margin-top:28px}
.hero h1 em{font-style:normal;font-weight:300;color:var(--ink-muted);display:block}
.hero .brandline{width:140px;height:4px;border-radius:4px;background:var(--line-warm);margin:40px 0 32px}
.hero .lead{max-width:30em}
.hero-cta{display:flex;flex-wrap:wrap;align-items:center;gap:20px 28px;margin-top:40px}
.hero-note{font-size:.9rem;color:var(--ink-muted)}

.chat{background:var(--surface-raised);border-radius:28px;box-shadow:0 40px 80px -40px rgba(23,1,74,.35),0 0 0 1px rgba(23,1,74,.05);overflow:hidden;min-width:0}
.chat-top{display:flex;align-items:center;gap:12px;padding:16px 20px;border-bottom:1px solid var(--line)}
.av{width:38px;height:38px;flex:none}.av svg{width:100%;height:100%;display:block}
.chat-top b{display:block;font-size:.95rem;color:var(--ink-strong);line-height:1.3}
.chat-top small{font-size:.78rem;color:var(--teal);font-weight:500}
.chat-body{display:grid;gap:10px;padding:22px 20px 24px}
.msg{max-width:88%;padding:12px 16px;border-radius:20px;font-size:.92rem;line-height:1.55}
.msg.in{background:#F1EEF5;border-bottom-left-radius:6px}
.msg.out{justify-self:end;background:var(--indigo);color:var(--on-dark);border-bottom-right-radius:6px}
.msg.out .cz{color:var(--amber)}
.route{justify-self:center;font-size:.78rem;font-weight:600;color:var(--teal);padding:6px 0;display:flex;align-items:center;gap:8px}
.route::before,.route::after{content:"";width:24px;height:1px;background:currentColor;opacity:.5}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr;align-items:start}.chat{max-width:480px}}
@media (max-width:600px){.hero-cta .btn{width:100%}}

/* Proof */
.proof{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
/* 4 experience tiles in a row, one "satisfied clients" tile across the full width below.
   Hairlines come from the 1px gap over the --line background. */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line)}
.stat{background:var(--surface);padding:clamp(28px,3.5vw,44px) clamp(16px,2.5vw,32px);display:grid;gap:8px;align-content:start;min-width:0}
.stat:first-child{padding-left:0}
.num{font-size:clamp(2.6rem,5.5vw,4.5rem);line-height:1;font-weight:300;letter-spacing:-.04em;color:var(--ink-strong);font-variant-numeric:tabular-nums}
.num sup{font-size:.45em;font-weight:500;color:var(--teal);vertical-align:top;position:relative;top:.25em;margin-left:2px}
.stat p{font-size:.95rem;color:var(--ink-muted);max-width:16em}
.stat.total{grid-column:1/-1;padding-left:0;display:flex;flex-wrap:wrap;align-items:center;gap:8px clamp(16px,3vw,32px)}
.stat.total .num{font-size:clamp(3.2rem,8vw,6rem)}
.stat.total p{font-size:clamp(1.15rem,2vw,1.5rem);color:var(--ink-strong);font-weight:500;max-width:none}
@media (max-width:900px){.stats{grid-template-columns:repeat(2,1fr)}.stat:nth-child(odd){padding-left:0}}

/* Problems: sticky heading + hairline list */
.split{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(40px,7vw,120px);align-items:start}
.split-head{position:sticky;top:120px;display:grid;gap:24px}
.rows{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.rows li{display:grid;grid-template-columns:auto 1fr;gap:24px;padding:32px 0;border-bottom:1px solid var(--line)}
.rows .ic{width:28px;height:28px;color:var(--teal);margin-top:4px}
.rows h3{font-size:1.3rem;line-height:1.35;font-weight:600}
.rows p{margin-top:8px;color:var(--ink-muted);font-size:1rem}
@media (max-width:860px){.split{grid-template-columns:1fr}.split-head{position:static}}

/* Services: index + panel on dark */
.svc-intro{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px;align-items:end;margin-bottom:clamp(48px,6vw,80px)}
.svc{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:clamp(32px,6vw,96px);align-items:start}
.tabs{display:grid;border-top:1px solid var(--line-dark)}
.tab{all:unset;cursor:pointer;display:grid;grid-template-columns:1fr auto;align-items:center;gap:16px;padding:26px 0;border-bottom:1px solid var(--line-dark);color:var(--on-dark-muted);transition:color .2s}
.tab .t{font-size:clamp(1.4rem,2.6vw,2.1rem);font-weight:500;letter-spacing:-.015em;line-height:1.25}
.tab .by{font-size:.8rem;font-weight:500;letter-spacing:.06em;text-transform:uppercase;opacity:.75}
.tab:hover{color:var(--on-dark)}
.tab[aria-selected="true"]{color:var(--on-dark)}
.tab[aria-selected="true"] .t::after{content:"";display:block;width:48px;height:3px;border-radius:3px;background:var(--line-warm);margin-top:12px}
.tab:focus-visible{outline:3px solid var(--amber);outline-offset:4px}
.panel{display:grid;gap:28px;padding-top:26px;min-width:0}
.panel[hidden]{display:none}
.panel h3{font-size:1.1rem;font-weight:500;color:var(--on-dark-muted);line-height:1.6;max-width:30em}
.panel ul{list-style:none;margin:0;padding:0;display:grid;gap:0}
.panel li{padding:18px 0;border-bottom:1px solid var(--line-dark);font-size:1.02rem;line-height:1.5;display:grid;gap:2px}
.panel li .cz{font-size:1.1rem}
.panel li span.ex{color:var(--on-dark-muted);font-size:.95rem}
.soon{display:inline-block;font-size:.75rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--teal-light);border:1px solid currentColor;border-radius:999px;padding:4px 10px;justify-self:start}
@media (max-width:860px){.svc,.svc-intro{grid-template-columns:1fr}}

/* Architecture */
.arch{display:grid;gap:56px}
.arch-top{display:grid;justify-items:center;text-align:center;gap:20px}
.arch-top .door{display:grid;justify-items:center;gap:14px}
.arch-top .door svg{height:48px;width:auto}
.arch-top p{font-size:.95rem;color:var(--ink-muted);max-width:28em}
.branches{display:grid;grid-template-columns:repeat(4,1fr);position:relative;border-top:1px solid var(--ink-strong)}
.branches::before{content:"";position:absolute;left:50%;top:-56px;height:56px;width:1px;background:var(--ink-strong)}
.branch{padding:36px clamp(16px,3vw,40px) 8px;display:grid;gap:14px;align-content:start;position:relative;min-width:0}
.branch::before{content:"";position:absolute;left:clamp(16px,3vw,40px);top:-5px;width:9px;height:9px;border-radius:50%;background:var(--ink-strong)}
.branch + .branch{border-left:1px solid var(--line)}
.pname{font-size:1.6rem;font-weight:700;letter-spacing:.01em;color:var(--ink-strong)}
.pname.muted{color:var(--ink-muted);font-weight:500}
.branch .area{font-size:.82rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--teal)}
.branch p{color:var(--ink-muted);font-size:.98rem}
.kv{display:flex;gap:32px;margin-top:8px}
.kv b{display:block;font-size:2rem;font-weight:300;letter-spacing:-.03em;color:var(--ink-strong);line-height:1.1;font-variant-numeric:tabular-nums}
.kv span{font-size:.82rem;color:var(--ink-muted)}
.member{font-size:.8rem;color:var(--ink-muted);display:flex;align-items:center;gap:6px}
@media (max-width:820px){.branches{grid-template-columns:1fr;border-top:0;border-left:1px solid var(--ink-strong);margin-left:8px}.branches::before{display:none}.branch{padding:8px 0 32px 28px}.branch+.branch{border-left:0}.branch::before{left:-5px;top:16px}}

/* Steps */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(24px,4vw,56px);position:relative;margin-top:clamp(48px,6vw,72px)}
.steps::before{content:"";position:absolute;left:0;right:0;top:27px;height:2px;background:var(--line-cool);opacity:.9}
.step{display:grid;gap:16px;align-content:start;position:relative;min-width:0}
.step .n{width:56px;height:56px;border-radius:50%;background:var(--surface);border:1.5px solid var(--ink-strong);display:grid;place-items:center;font-weight:600;font-size:1.1rem;color:var(--ink-strong);position:relative}
.step h3{font-size:1.3rem;font-weight:600;line-height:1.35}
.step p{color:var(--ink-muted);font-size:1rem}
@media (max-width:820px){.steps{grid-template-columns:1fr}.steps::before{left:27px;right:auto;top:0;bottom:0;width:2px;height:auto;background:linear-gradient(180deg,var(--grad-blue),var(--grad-cyan),var(--grad-mint))}.step{grid-template-columns:56px 1fr;column-gap:24px}.step .n{grid-row:span 2}}

/* Glossary */
.glossary{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line-dark);margin-top:clamp(40px,5vw,64px)}
.term{padding:28px 24px 28px 0;border-bottom:1px solid var(--line-dark);display:grid;gap:6px;min-width:0}
.term b{font-size:1.25rem;font-weight:600;color:var(--on-dark)}
.term span{color:var(--on-dark-muted);font-size:.95rem}
@media (max-width:900px){.glossary{grid-template-columns:repeat(2,1fr)}}
@media (max-width:460px){.glossary{grid-template-columns:1fr}}

/* Why */
.why{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(24px,3vw,40px);margin-top:clamp(40px,5vw,64px)}
.why div{display:grid;gap:10px;align-content:start;padding-top:24px;border-top:2px solid var(--ink-strong);min-width:0}
.why h3{font-size:1.15rem;font-weight:600;line-height:1.4}
.why p{color:var(--ink-muted);font-size:.98rem}
@media (max-width:900px){.why{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.why{grid-template-columns:1fr}}

/* Quotes */
.quotes{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:clamp(40px,6vw,96px);margin-top:clamp(40px,5vw,64px)}
.feature blockquote{margin:0;font-size:clamp(1.5rem,2.8vw,2.3rem);line-height:1.4;font-weight:300;letter-spacing:-.01em;color:var(--ink-strong)}
.feature blockquote::before{content:"“";display:block;font-size:4rem;line-height:.6;font-weight:600;color:var(--amber);margin-bottom:16px}
.who{margin-top:24px;font-size:.95rem;color:var(--ink-muted)}
.who b{color:var(--ink-strong);font-weight:600}
.minor{display:grid;gap:0;border-top:1px solid var(--line)}
.minor figure{margin:0;padding:28px 0;border-bottom:1px solid var(--line)}
.minor blockquote{margin:0;font-size:1.05rem;line-height:1.6}
.sample{display:inline-block;margin-top:16px;font-size:.78rem;font-weight:500;color:var(--ink-muted);border:1px dashed var(--ink-muted);border-radius:999px;padding:3px 10px}
@media (max-width:860px){.quotes{grid-template-columns:1fr}}

/* FAQ */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:24px;padding:26px 0;font-size:1.12rem;font-weight:500;color:var(--ink-strong);line-height:1.45}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";flex:none;font-size:1.6rem;font-weight:300;color:var(--teal);line-height:1;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 48px 28px 0;color:var(--ink-muted)}

/* Final */
.final{text-align:left}
.final .wrap{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:40px;align-items:end}
.final h2{font-size:clamp(2.4rem,6vw,4.8rem);line-height:1.08;font-weight:600;letter-spacing:-.03em}
.final .brandline{width:140px;height:4px;border-radius:4px;background:var(--line-warm);margin-bottom:32px}
.final-side{display:grid;gap:24px;justify-items:start}
@media (max-width:860px){.final .wrap{grid-template-columns:1fr}.final-side .btn,.cta-pair{width:100%}}

/* Footer */
.site-footer{background:var(--indigo-night);color:var(--on-dark-muted);font-size:.92rem;border-top:1px solid var(--line-dark)}
.site-footer .wrap{padding-block:56px 32px;display:grid;gap:48px}
.foot{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.foot h4{margin:0 0 14px;font-size:.75rem;letter-spacing:.14em;text-transform:uppercase;color:var(--on-dark);font-weight:600}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.site-footer a{text-decoration:none;color:var(--on-dark)}
.site-footer a:hover{text-decoration:underline}
.site-footer .brand svg{height:40px}
.foot-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;padding-top:24px;border-top:1px solid var(--line-dark)}
.site-footer .lang button{color:var(--on-dark-muted)}
.site-footer .lang button[aria-pressed="true"]{color:var(--on-dark)}
.site-footer .lang span{color:var(--line-dark)}
@media (max-width:820px){.foot{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.foot{grid-template-columns:1fr}}

/* Mobile sticky CTA */
.mobile-bar{display:none}
@media (max-width:760px){
  .mobile-bar{display:block;position:fixed;left:0;right:0;bottom:0;z-index:55;padding:10px max(16px,env(safe-area-inset-right,0px)) calc(10px + env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px));background:rgba(251,248,244,.95);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--line)}
  .mobile-bar{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .mobile-bar .btn{width:100%;padding:0 10px;gap:8px;font-size:.95rem;white-space:nowrap}
  .mobile-bar .btn svg{width:20px;height:20px}
  body{padding-bottom:84px}
}