/* ===========================================================
   REAL APPLICATION — main stylesheet
   Design language: engraved plate / seal. Hairline rules,
   wide-spaced small caps labels, straight dividers, no curves,
   no gradients, no drop shadows. Serif headlines, sans body.
   =========================================================== */

:root{
  --bg:        #F6F6F3;
  --bg-alt:    #EFEFEA;
  --ink:       #16161F;
  --ink-soft:  #4A4A55;
  --muted:     #6B6B76;
  --accent:    #3B4CCA;
  --cta:       #FF6B4A;
  --cta-dark:  #E85A3A;
  --rule-strong: #1A1A2E;
  --rule-soft:   #DBDBD3;
  --dark-bg:   #14141C;
  --dark-ink:  #F1F1EC;

  --serif: Georgia, 'Times New Roman', Times, serif;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  --maxw: clamp(1120px, 91vw, 1600px);
  --pad: clamp(20px, 5vw, 64px);
}

*{ box-sizing: border-box; }

html{
  height:100%;
  background:var(--bg);
}

body{
  margin:0;
  min-height:100%;
  display:flex;
  flex-direction:column;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='matrix' values='0 0 0 0 0.09  0 0 0 0 0.09  0 0 0 0 0.12  0 0 0 0.028 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat:repeat;
}

/* Push the footer to the bottom of the viewport on short pages
   (e.g. 404.php) instead of leaving a gap below it. On pages with
   enough content (like index.php) this has no visible effect. */
main{ flex:1 0 auto; }
.site-header,
.site-footer{ flex:none; }

section#offer,
section#why{
  background:var(--bg-alt);
}

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

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

/* ---------- typography helpers ---------- */

h1,h2,h3{
  font-family:var(--serif);
  font-weight:400;
  margin:0;
  line-height:1.15;
}

.eyebrow{
  display:flex;
  align-items:center;
  gap:14px;
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:22px;
}
.eyebrow::before,
.eyebrow::after{
  content:"";
  flex:1;
  height:1px;
  background:var(--rule-soft);
}
.eyebrow.left::before{ display:none; }
.eyebrow.left{ justify-content:flex-start; }
.eyebrow.left::after{ flex:0 0 40px; }

.lede{
  font-size:19px;
  color:var(--ink-soft);
  max-width:56ch;
}

.rule{
  border:0;
  border-top:1px solid var(--rule-soft);
  margin:0;
}
.rule.strong{ border-top:1px solid var(--rule-strong); }

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

.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:14px 26px;
  font-family:var(--sans);
  font-size:15px;
  font-weight:600;
  text-decoration:none;
  border-radius:2px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .15s ease, background .2s ease, border-color .2s ease, color .2s ease;
}
.btn:active{ transform:translateY(1px); }

.btn-primary{
  background:var(--cta);
  color:#fff;
}
.btn-primary:hover{ background:var(--cta-dark); }

.btn-ghost{
  background:transparent;
  color:var(--ink);
  border-color:var(--rule-strong);
}
.btn-ghost:hover{ background:var(--ink); color:var(--bg); }

.btn-row{ display:flex; gap:16px; flex-wrap:wrap; margin-top:36px; }

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

.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(246,246,243,.92);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--rule-soft);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{ box-shadow:0 2px 14px rgba(0,0,0,.05); }

.site-header .wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top:18px;
  padding-bottom:18px;
}

.brand{ display:flex; align-items:center; }
.brand img{ height:52px; width:auto; }

.main-nav ul{
  list-style:none;
  display:flex;
  gap:32px;
  margin:0;
  padding:0;
}
.main-nav a{
  text-decoration:none;
  font-size:14px;
  letter-spacing:.02em;
  color:var(--ink-soft);
  position:relative;
  padding-bottom:4px;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0; right:100%;
  bottom:0;
  height:1px;
  background:var(--accent);
  transition:right .2s ease;
}
.main-nav a:hover{ color:var(--ink); }
.main-nav a:hover::after{ right:0; }

.lang-switch{
  display:flex;
  gap:10px;
  font-size:13px;
  color:var(--muted);
  margin-left:28px;
}
.lang-switch a{ text-decoration:none; }
.lang-switch a.active{ color:var(--ink); font-weight:600; }

.nav-toggle{ display:none; }

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

.hero{
  padding-top:clamp(56px, 10vw, 110px);
  padding-bottom:clamp(56px, 8vw, 96px);
  position:relative;
  overflow:hidden;
}

.hero-seal{
  position:absolute;
  top:clamp(-60px, -6vw, -20px);
  right:clamp(-70px, -4vw, -10px);
  width:clamp(260px, 30vw, 420px);
  height:clamp(260px, 30vw, 420px);
  opacity:.9;
  pointer-events:none;
  z-index:0;
}
.hero > .wrap{
  position:relative;
  z-index:1;
}

@media (max-width:900px){
  .hero-seal{ opacity:.55; }
}
@media (max-width:700px){
  .hero-seal{ display:none; }
}

.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:56px;
  align-items:start;
}

.hero h1{
  font-size:clamp(32px, 4.4vw, 46px);
  max-width:17ch;
  margin-bottom:26px;
}
.hero h1 em{
  font-style:normal;
  color:var(--accent);
}

/* ---- sample exchange card ---- */

.sample-card{
  border:1px solid var(--rule-strong);
  background:#fff;
  margin-top:6px;
}
.sample-card .sc-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:12px 18px;
  border-bottom:1px solid var(--rule-soft);
  font-size:11.5px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--muted);
}
.sample-card .sc-dot{
  width:7px; height:7px; border-radius:50%;
  background:var(--accent);
  display:inline-block;
  margin-right:8px;
}
.sample-card .sc-body{ padding:20px; }
.sc-msg{
  max-width:85%;
  padding:11px 14px;
  font-size:14px;
  line-height:1.5;
  margin-bottom:12px;
}
.sc-msg.user{
  background:var(--bg-alt);
  color:var(--ink);
  margin-left:auto;
  border:1px solid var(--rule-soft);
}
.sc-msg.bot{
  background:transparent;
  color:var(--ink-soft);
  border:1px solid var(--rule-strong);
}
.sc-msg.bot .who{
  display:block;
  font-size:10.5px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:5px;
}
.sc-caret{
  display:inline-block;
  width:7px; height:14px;
  background:var(--accent);
  vertical-align:middle;
  margin-left:2px;
  animation:blink 1s step-end infinite;
}
@keyframes blink{ 50%{ opacity:0; } }
.sample-card .sc-foot{
  border-top:1px solid var(--rule-soft);
  padding:10px 18px;
  font-size:11.5px;
  color:var(--muted);
}

.hero-meta{
  margin-top:56px;
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:24px;
  padding-top:28px;
  border-top:1px solid var(--rule-soft);
  max-width:520px;
}
.hero-meta .num{
  font-family:var(--serif);
  font-size:28px;
  color:var(--accent);
}
.hero-meta .lbl{
  font-size:11.5px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--muted);
  margin-top:4px;
}

/* ---------- generic section ---------- */

section{ padding-top:88px; padding-bottom:88px; }
section.tight{ padding-top:56px; padding-bottom:56px; }
.section-head{ max-width:640px; margin-bottom:48px; }
.section-head h2{ font-size:clamp(26px, 3.4vw, 36px); }

/* ---------- problem section ---------- */

.problem-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  border:1px solid var(--rule-soft);
}
.problem-col{ padding:32px; }
.problem-col + .problem-col{ border-left:1px solid var(--rule-soft); }
.problem-col h3{
  font-size:14px;
  font-family:var(--sans);
  letter-spacing:.1em;
  text-transform:uppercase;
  margin-bottom:18px;
}
.problem-col.bad h3{ color:var(--muted); }
.problem-col.good h3{ color:var(--accent); }
.problem-col ul{ margin:0; padding:0; list-style:none; }
.problem-col li{
  padding:10px 0 10px 26px;
  border-top:1px solid var(--rule-soft);
  color:var(--ink-soft);
  font-size:15px;
  position:relative;
}
.problem-col li::before{
  content:"";
  position:absolute;
  left:0;
  top:19px;
  width:12px;
  height:1.5px;
}
.problem-col.bad li::before{ background:var(--cta); opacity:.6; }
.problem-col.good li::before{ background:var(--accent); }
.problem-col li:first-of-type{ border-top:0; }

/* ---------- offer list ---------- */

.offer{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:64px;
  align-items:start;
}
.offer-list{ list-style:none; margin:0; padding:0; }
.offer-list li{
  display:flex;
  gap:18px;
  padding:20px 0;
  border-top:1px solid var(--rule-soft);
}
.offer-list li:last-child{ border-bottom:1px solid var(--rule-soft); }
.offer-list .mark{
  font-family:var(--serif);
  color:var(--accent);
  font-size:20px;
  line-height:1.4;
}
.offer-list strong{ display:block; margin-bottom:4px; }
.offer-list span{ color:var(--ink-soft); font-size:15px; }

.offer-card{
  border:1px solid var(--rule-strong);
  padding:34px;
}
.offer-card .eyebrow{ margin-bottom:14px; }
.offer-card p{ color:var(--ink-soft); }

/* ---------- process ---------- */

.process-list{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:0;
  border-top:1px solid var(--rule-strong);
  border-bottom:1px solid var(--rule-strong);
}
.process-step{
  padding:28px 20px;
  border-left:1px solid var(--rule-soft);
}
.process-step:first-child{ border-left:0; }
.process-step .step-no{
  font-family:var(--serif);
  font-size:26px;
  color:var(--accent);
  margin-bottom:14px;
  display:block;
  opacity:.55;
}
.process-step h3{
  font-family:var(--sans);
  font-size:15px;
  font-weight:600;
  margin-bottom:8px;
}
.process-step p{
  font-size:13.5px;
  color:var(--muted);
  margin:0;
}
.process-step.is-final{ background:var(--bg-alt); }
.process-step.is-final .step-no{ opacity:1; color:var(--cta); }
.process-step.is-final h3{ color:var(--cta-dark); }

/* ---------- also available ---------- */

.also-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:1px;
  background:var(--rule-soft);
  border:1px solid var(--rule-soft);
}
.also-item{
  background:var(--bg);
  padding:30px;
}
.also-item h3{
  font-family:var(--sans);
  font-size:16px;
  font-weight:600;
  margin-bottom:10px;
}
.also-item p{
  font-size:14.5px;
  color:var(--ink-soft);
  margin:0;
}

/* ---------- why ---------- */

.why{ display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center; }

.why-person{
  display:flex;
  align-items:center;
  gap:16px;
  margin-bottom:28px;
}
.why-photo{
  width:132px;
  height:132px;
  object-fit:cover;
  border:1px solid var(--rule-strong);
  filter:grayscale(.25) contrast(1.02);
}
.why-person-meta{ display:flex; flex-direction:column; gap:4px; }
.why-person-meta strong{ font-family:var(--serif); font-size:17px; }
.why-person-meta span{ font-size:13px; color:var(--muted); }

.why p{ color:var(--ink-soft); font-size:17px; }
.why-stats{ display:grid; grid-template-columns:1fr 1fr; gap:1px; background:var(--rule-soft); border:1px solid var(--rule-soft); }
.why-stat{ background:var(--bg); padding:26px; }
.why-stat .num{ font-family:var(--serif); font-size:34px; color:var(--accent); }
.why-stat .lbl{ font-size:12.5px; letter-spacing:.06em; text-transform:uppercase; color:var(--muted); margin-top:6px; }

/* ---------- contact / footer band ---------- */

.contact-band{
  background:var(--dark-bg);
  color:var(--dark-ink);
}
.contact-band .eyebrow{ color:#9C9CA8; }
.contact-band .eyebrow::before,
.contact-band .eyebrow::after{ background:#33333f; }
.contact-band h2{ color:var(--dark-ink); font-size:clamp(26px,3.6vw,38px); max-width:20ch; }
.contact-band .lede{ color:#B7B7C0; }

.contact-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  margin-top:44px;
}

.contact-details p{ color:#B7B7C0; margin:0 0 22px; }
.contact-details a.email{
  font-family:var(--serif);
  font-size:22px;
  color:var(--dark-ink);
  text-decoration:none;
  border-bottom:1px solid var(--accent);
}

.field{ margin-bottom:18px; }
.field label{
  display:block;
  font-size:12px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:#9C9CA8;
  margin-bottom:8px;
}
.field input,
.field textarea{
  width:100%;
  background:transparent;
  border:0;
  border-bottom:1px solid #33333f;
  color:var(--dark-ink);
  font-family:var(--sans);
  font-size:15px;
  padding:10px 2px;
  resize:vertical;
}
.field input:focus,
.field textarea:focus{
  outline:none;
  border-bottom-color:var(--accent);
}
.field input::placeholder,
.field textarea::placeholder{ color:#5c5c68; }

.form-status{
  min-height:20px;
  font-size:13px;
  color:#9fd6b4;
  margin-bottom:16px;
}
.form-status.is-error{ color:#FF9E85; }

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

.site-footer{
  background:var(--dark-bg);
  color:#7c7c88;
  border-top:1px solid #26262f;
  font-size:13px;
}
.site-footer .wrap{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding-top:26px;
  padding-bottom:26px;
  flex-wrap:wrap;
  gap:12px;
}
.site-footer a{ color:#a9a9b3; text-decoration:none; }
.site-footer a:hover{ color:var(--dark-ink); }
.footer-links{ display:flex; gap:22px; list-style:none; margin:0; padding:0; }

@media (max-width:640px){
  .site-footer .wrap{
    flex-direction:column;
    align-items:flex-start;
    padding-bottom:88px; /* reserve room so the fixed chat launcher doesn't sit over the last line */
  }
  .footer-links{ flex-wrap:wrap; }
}

/* ---------- reveal on scroll ---------- */

.reveal{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .6s ease, transform .6s ease;
}
.reveal.is-visible{ opacity:1; transform:translateY(0); }

@media (prefers-reduced-motion: reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
}

/* ---------- chat launcher (demo assistant, wired later) ---------- */

.chat-launcher{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:60;
  background:var(--cta);
  color:#fff;
  border:none;
  border-radius:2px;
  padding:14px 20px;
  font-family:var(--sans);
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  box-shadow:0 6px 20px rgba(0,0,0,.28);
}
.chat-launcher:hover{ background:var(--cta-dark); }

.chat-panel{
  position:fixed;
  right:24px;
  bottom:78px;
  z-index:60;
  width:320px;
  max-width:calc(100vw - 48px);
  background:#fff;
  border:1px solid var(--rule-strong);
  box-shadow:0 12px 30px rgba(0,0,0,.16);
  display:none;
  flex-direction:column;
}
.chat-panel.open{ display:flex; }
.chat-panel header{
  padding:14px 16px;
  border-bottom:1px solid var(--rule-soft);
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:13px;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--muted);
}
.chat-panel header button{
  background:none; border:none; cursor:pointer; font-size:16px; color:var(--muted);
}

.chat-messages{
  padding:16px;
  overflow-y:auto;
  max-height:340px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.chat-msg{
  font-size:14px;
  line-height:1.5;
  padding:10px 12px;
  max-width:88%;
}
.chat-msg.bot{
  border:1px solid var(--rule-strong);
  color:var(--ink-soft);
  align-self:flex-start;
}
.chat-msg.user{
  background:var(--bg-alt);
  border:1px solid var(--rule-soft);
  color:var(--ink);
  align-self:flex-end;
}
.chat-msg .who{
  display:block;
  font-size:10.5px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:4px;
}
.chat-msg.pending{ color:var(--muted); font-style:italic; }
.chat-msg.error{ border-color:var(--cta); color:var(--cta-dark); }

.chat-input-row{
  display:flex;
  border-top:1px solid var(--rule-soft);
}
.chat-input-row input{
  flex:1;
  border:none;
  padding:12px 14px;
  font-family:var(--sans);
  font-size:14px;
  background:transparent;
  color:var(--ink);
}
.chat-input-row input:focus{ outline:none; }
.chat-input-row button{
  border:none;
  background:var(--ink);
  color:var(--bg);
  width:44px;
  cursor:pointer;
  font-size:16px;
}
.chat-input-row button:hover{ background:var(--accent); }

/* ---------- responsive ---------- */

@media (max-width: 900px){
  .hero-grid{ grid-template-columns:1fr; }
  .problem-grid{ grid-template-columns:1fr; }
  .problem-col + .problem-col{ border-left:0; border-top:1px solid var(--rule-soft); }
  .offer{ grid-template-columns:1fr; gap:36px; }
  .process-list{ grid-template-columns:repeat(2,1fr); }
  .process-step:nth-child(3){ border-left:0; }
  .process-step{ border-bottom:1px solid var(--rule-soft); }
  .also-grid{ grid-template-columns:1fr; }
  .why{ grid-template-columns:1fr; gap:32px; }
  .contact-grid{ grid-template-columns:1fr; gap:36px; }
}

@media (max-width: 700px){
  .main-nav{ display:none; }
  .lang-switch{ margin-left:auto; }
  .process-list{ grid-template-columns:1fr; }
  .process-step{ border-left:0 !important; }
  .hero-meta{ gap:28px; }
}

/* ---------- LEGAL / CONTENT PAGES ---------- */
.legal-hero{
  padding-top:64px;
  padding-bottom:8px;
}
.legal-hero h1{
  font-size:clamp(30px, 4vw, 44px);
  margin-bottom:14px;
}
.legal-updated{
  color:var(--muted);
  font-family:var(--sans);
  font-size:14px;
}
.legal-body{
  max-width:740px;
  padding-top:40px;
  padding-bottom:72px;
}
.legal-body h2{
  font-size:22px;
  margin-top:44px;
  margin-bottom:14px;
}
.legal-body h2:first-child{ margin-top:0; }
.legal-body p{
  color:var(--ink-soft);
  line-height:1.7;
  margin-bottom:16px;
}
.legal-body ul{
  color:var(--ink-soft);
  line-height:1.7;
  margin:0 0 16px 0;
  padding-left:22px;
}
.legal-body li{ margin-bottom:8px; }
.legal-body a{ color:var(--accent); }
.legal-body strong{ color:var(--ink); }

  .lang-switch{ display:flex; gap:12px; font-family:var(--sans); font-size:13px; }
  .lang-switch a{ color:var(--ink-soft); text-decoration:none; }
  .lang-switch a:hover{ color:var(--ink); text-decoration:underline; }
  .demo-hero{ padding-top:clamp(48px,8vw,88px); padding-bottom:40px; }
  .demo-badge{
    display:inline-flex; align-items:center; gap:8px;
    font-family:var(--sans); font-size:11.5px; letter-spacing:.12em; text-transform:uppercase;
    color:var(--cta-dark); border:1px solid var(--cta); padding:6px 12px; margin-bottom:22px;
  }
  .demo-badge .dot{ width:6px; height:6px; border-radius:50%; background:var(--cta); }
  .demo-hero h1{ font-size:clamp(30px,4.2vw,44px); max-width:22ch; margin-bottom:16px; }
  .demo-hero .lede{ max-width:60ch; }

  .concept-nav{ display:flex; gap:1px; background:var(--rule-soft); border:1px solid var(--rule-soft); margin-top:44px; }
  .concept-nav a{
    flex:1; text-align:center; background:var(--bg); padding:16px 10px;
    font-family:var(--sans); font-size:13px; font-weight:600; color:var(--ink-soft); text-decoration:none;
  }
  .concept-nav a:hover{ color:var(--ink); background:var(--bg-alt); }

  .concept-section{ padding-top:72px; padding-bottom:72px; border-top:1px solid var(--rule-soft); }
  .concept-eyebrow{ display:flex; align-items:center; gap:10px; margin-bottom:14px; }
  .concept-eyebrow .no{ font-family:var(--serif); font-size:20px; color:var(--accent); opacity:.6; }
  .concept-eyebrow span{ font-family:var(--sans); font-size:11.5px; letter-spacing:.14em; text-transform:uppercase; color:var(--muted); }
  .concept-section h2{ font-family:var(--serif); font-weight:400; font-size:clamp(24px,3vw,32px); max-width:22ch; margin-bottom:12px; }
  .concept-section .lede{ font-size:16px; color:var(--ink-soft); max-width:60ch; margin-bottom:8px; }

  .bridge-row{
    display:grid; grid-template-columns:1fr auto 1fr; align-items:center; gap:16px;
    max-width:640px; margin:26px 0 36px; font-family:var(--sans);
  }
  .bridge-old, .bridge-new{ padding:14px 16px; border:1px solid var(--rule-soft); font-size:13.5px; color:var(--ink-soft); }
  .bridge-old{ text-decoration:line-through; text-decoration-color:var(--rule-soft); }
  .bridge-new{ border-color:var(--rule-strong); color:var(--ink); font-weight:600; }
  .bridge-arrow{ color:var(--accent); font-size:18px; }

  /* ---- shared widget shell ---- */
  .widget-shell{ border:1px solid var(--rule-strong); background:#fff; }
  .widget-shell .w-head{
    display:flex; align-items:center; justify-content:space-between;
    padding:14px 22px; border-bottom:1px solid var(--rule-soft);
    font-family:var(--sans); font-size:11.5px; letter-spacing:.1em; text-transform:uppercase; color:var(--muted);
  }
  .widget-shell .w-head .sc-dot{ width:7px; height:7px; border-radius:50%; background:var(--accent); display:inline-block; margin-right:8px; }
  .widget-body{ padding:26px 22px; }

  .w-input-row{ display:flex; gap:10px; margin-bottom:8px; }
  .w-input-row input{
    flex:1; border:1px solid var(--rule-soft); padding:14px 16px;
    font-family:var(--sans); font-size:15px; color:var(--ink); background:var(--bg);
  }
  .w-input-row input:focus{ outline:none; border-color:var(--accent); }
  .w-input-row button{
    border:none; background:var(--cta); color:#fff; font-family:var(--sans);
    font-weight:600; font-size:14px; padding:0 22px; cursor:pointer; white-space:nowrap;
  }
  .w-input-row button:hover{ background:var(--cta-dark); }

  .w-hint{ font-size:12.5px; color:var(--muted); margin-bottom:22px; }
  .w-hint button{
    background:none; border:none; padding:0; margin:0 4px 4px 0; display:inline;
    color:var(--accent); text-decoration:underline; cursor:pointer; font-size:12.5px; font-family:var(--sans);
  }

  .w-result{ display:none; border-top:1px solid var(--rule-soft); padding-top:22px; }
  .w-result.is-visible{ display:block; }

  .w-tags{ display:flex; flex-wrap:wrap; gap:8px; margin-bottom:18px; }
  .w-tag{
    font-family:var(--sans); font-size:12.5px; color:var(--ink-soft);
    border:1px solid var(--rule-soft); padding:5px 10px;
  }
  .w-tag strong{ color:var(--ink); }

  .w-note{ font-size:13.5px; color:var(--muted); margin-top:14px; max-width:56ch; }
  .w-missing{ font-size:13.5px; color:var(--cta-dark); margin-top:14px; }

  .es-range{ display:flex; align-items:baseline; gap:12px; margin-bottom:6px; }
  .es-range .num{ font-family:var(--serif); font-size:36px; color:var(--accent); }
  .es-range .lbl{ font-size:12.5px; letter-spacing:.06em; text-transform:uppercase; color:var(--muted); }

  .man-answer{
    border:1px solid var(--rule-strong); padding:16px 18px; font-size:14.5px; color:var(--ink);
    line-height:1.6; margin-bottom:10px;
  }
  .man-source{ font-size:12px; color:var(--muted); }

  .cat-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(180px,1fr)); gap:1px; background:var(--rule-soft); border:1px solid var(--rule-soft); }
  .cat-card{ background:#fff; padding:18px; }
  .cat-card h4{ font-family:var(--serif); font-weight:400; font-size:16px; margin:0 0 6px; }
  .cat-card .price{ font-family:var(--sans); font-size:13px; color:var(--accent); font-weight:600; margin-bottom:8px; }
  .cat-card p{ font-size:12.5px; color:var(--muted); margin:0; line-height:1.5; }

  .concept-footer-note{
    max-width:640px; font-size:13px; color:var(--muted); margin-top:20px;
    border-top:1px solid var(--rule-soft); padding-top:16px;
  }

  .back-link{ font-size:14px; color:var(--muted); text-decoration:none; }
  .back-link:hover{ color:var(--ink); }

  @media (max-width:700px){
    .concept-nav{ flex-direction:column; }
    .bridge-row{ grid-template-columns:1fr; gap:8px; }
    .bridge-arrow{ display:none; }
  }