/* ==========================================================================
   KesbiSmart — shared design system
   Palette and motif are drawn from the brand mark: a lime→forest gradient
   "K" inside a rounded circuit-frame with corner connection nodes, crossed
   by a grey connector bar. The node/trace pattern below is that frame,
   reused as the site's structural device (card corners, step connectors,
   dividers) rather than as decoration bolted on afterward.
   ========================================================================== */

:root{
  --paper:      #F7FAF2;   /* page ground — warm-white with a green bias */
  --surface:    #FFFFFF;
  --surface-2:  #F0F5EA;
  --ink:        #101E15;   /* nearly-black, green-biased */
  --ink-dim:    #55645A;
  --line:       #DEE6D6;
  --line-2:     #CBD8C2;

  --forest:     #1E6B33;   /* deep shard of the K gradient */
  --lime:       #8FD424;   /* bright shard of the K gradient */
  --lime-ink:   #12280F;   /* text-on-lime */
  --grey-bar:   #9AA398;   /* the connector bar in the mark */
  --amber:      #E7A93C;   /* sparing use — offers/highlights only */
  --red:        #D64545;   /* sparing use — alerts only */

  --deep:       #0C1F12;   /* dark band ground (footer / CTA), not the whole site */
  --deep-2:     #12291A;
  --deep-line:  #1F3A26;
  --deep-text:  #E9F1E3;
  --deep-dim:   #93A896;

  --grad: linear-gradient(135deg, var(--forest) 0%, var(--lime) 100%);

  --display: 'Space Grotesk', sans-serif;
  --body: 'Inter', sans-serif;
  --mono: 'IBM Plex Mono', monospace;

  --radius: 14px;
  --container: 1180px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; overflow-x:hidden; }
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--body);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; }
.wrap{ max-width:var(--container); margin:0 auto; padding:0 28px; }

h1,h2,h3,h4{
  font-family:var(--display);
  font-weight:700;
  letter-spacing:-0.01em;
  margin:0;
}
p{ margin:0; }

.eyebrow{
  font-family:var(--mono);
  font-size:12.5px;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--forest);
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:600;
}
.eyebrow::before{
  content:"";
  width:7px; height:7px; border-radius:50%;
  background:var(--lime);
  box-shadow:0 0 0 3px rgba(143,212,36,0.25);
  display:inline-block;
  flex-shrink:0;
}

/* ---------- BUTTONS ---------- */
.btn{
  font-family:var(--body);
  font-weight:700;
  font-size:15px;
  padding:13px 26px;
  border-radius:999px;
  border:1.5px solid transparent;
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  gap:8px;
  text-decoration:none;
  transition:transform .15s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.btn:hover{ transform:translateY(-1px); }
.btn:focus-visible{ outline:2px solid var(--forest); outline-offset:3px; }
.btn:disabled{ opacity:0.5; cursor:not-allowed; transform:none; }
.btn-primary{ background:var(--grad); color:#fff; box-shadow:0 8px 20px -8px rgba(30,107,51,0.55); }
.btn-primary:hover{ box-shadow:0 10px 24px -8px rgba(30,107,51,0.65); }
.btn-ghost{ background:var(--surface); border-color:var(--line-2); color:var(--ink); }
.btn-ghost:hover{ border-color:var(--forest); }
.btn-dark{ background:var(--deep-2); color:var(--deep-text); border-color:var(--deep-line); }
.btn-dark:hover{ border-color:var(--lime); }
.btn-block{ width:100%; justify-content:center; }
.btn-sm{ padding:9px 18px; font-size:13.5px; }
.btn-lg{ padding:16px 32px; font-size:16px; }

/* ---------- LOGO MARK ---------- */
.logo{
  display:flex; align-items:center; gap:10px;
  font-family:var(--display); font-weight:700; font-size:20px;
  letter-spacing:-0.01em; text-decoration:none; color:var(--ink);
}
.logo b{ font-weight:700; color:var(--forest); }
.mark{ width:34px; height:34px; flex-shrink:0; display:block; }

/* ---------- NAV ---------- */
header{
  position:sticky; top:0; z-index:50;
  background:rgba(247,250,242,0.9);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
nav.wrap{
  display:flex; align-items:center; justify-content:space-between;
  height:76px; gap:24px;
}
.nav-links{ display:flex; gap:30px; align-items:center; }
.nav-links a{
  font-size:14.5px; font-weight:600; text-decoration:none; color:var(--ink-dim);
  transition:color .2s ease; position:relative; padding:4px 0;
}
.nav-links a::after{
  content:""; position:absolute; left:0; right:100%; bottom:-2px; height:2px;
  background:var(--lime); transition:right .2s ease;
}
.nav-links a:hover{ color:var(--ink); }
.nav-links a:hover::after{ right:0; }
.nav-links a.active{ color:var(--forest); }
.nav-links a.active::after{ right:0; background:var(--forest); }
.nav-cta{ display:flex; gap:10px; align-items:center; }
.nav-signin{ font-size:14px; font-weight:600; text-decoration:none; color:var(--ink-dim); padding:8px 6px; }
.nav-signin:hover{ color:var(--ink); }
.nav-toggle{ display:none; }
.nav-links-extra{ display:none; }

/* ---------- CIRCUIT NODE MOTIF ---------- */
.node-frame{ position:relative; }
.node-frame::before, .node-frame::after{
  content:""; position:absolute; width:8px; height:8px; border-radius:50%;
  background:var(--surface); border:2px solid var(--lime); z-index:2;
}
.node-frame::before{ top:-5px; left:20px; }
.node-frame::after{ top:-5px; right:20px; }

.trace-bg{
  background-image:
    radial-gradient(circle, var(--line-2) 1px, transparent 1.4px);
  background-size:26px 26px;
  background-position:-8px -8px;
}

/* ---------- STRIP MARQUEE ---------- */
.strip{
  border-bottom:1px solid var(--deep-line);
  background:var(--deep);
  padding:14px 0;
  overflow:hidden;
}
.strip-track{
  display:flex; gap:52px; white-space:nowrap;
  font-family:var(--mono); font-size:12.5px; letter-spacing:0.08em;
  color:var(--deep-dim); text-transform:uppercase;
  animation:scroll-left 26s linear infinite;
  width:max-content;
}
@keyframes scroll-left{
  from{ transform:translateX(0); }
  to{ transform:translateX(-50%); }
}
.strip-track span{ color:var(--lime); }

/* ---------- SECTION BASE ---------- */
section{ padding:96px 0; }
.section-sm{ padding:64px 0; }
.section-alt{ background:var(--surface-2); }
.section-head{
  display:flex; justify-content:space-between; align-items:flex-end;
  gap:30px; margin-bottom:52px; flex-wrap:wrap;
}
.section-head h2{
  font-size:clamp(28px, 3.6vw, 40px);
  color:var(--ink);
  margin-top:10px;
  text-wrap:balance;
}
.section-head p{
  font-family:var(--body); color:var(--ink-dim);
  font-size:16px; max-width:440px; margin-top:10px;
}
.page-header{
  padding:56px 0 44px;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(600px 300px at 88% -20%, rgba(143,212,36,0.16), transparent 60%),
    var(--paper);
}
.page-header h1{
  font-size:clamp(32px, 4.6vw, 50px); color:var(--ink); text-wrap:balance;
}
.page-header p{
  color:var(--ink-dim); font-size:16px; max-width:560px; margin-top:14px;
}
.page-header .eyebrow{ margin-bottom:14px; }

/* ---------- HERO (home) ---------- */
.hero{
  padding:76px 0 60px;
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(720px 420px at 84% -10%, rgba(143,212,36,0.20), transparent 60%),
    var(--paper);
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap:56px;
  align-items:center;
}
.hero h1{
  font-size:clamp(38px, 5vw, 62px);
  line-height:1.03;
  color:var(--ink);
  text-wrap:balance;
}
.hero h1 em{ font-style:normal; background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; }
.hero p.lead{
  font-family:var(--body); font-size:17.5px; color:var(--ink-dim);
  max-width:480px; margin:22px 0 30px;
}
.hero-actions{ display:flex; gap:14px; margin-bottom:34px; flex-wrap:wrap; }
.hero-proof{
  display:flex; gap:28px; flex-wrap:wrap;
  font-family:var(--mono); font-size:13px; color:var(--ink-dim);
}
.hero-proof strong{ color:var(--ink); font-size:22px; display:block; font-family:var(--mono); }

/* ---------- REWARDS CARD (signature element, replaces old gauge) ---------- */
.rc-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:20px;
  padding:30px;
  position:relative;
  box-shadow:0 30px 60px -32px rgba(16,30,21,0.28);
}
.rc-top{ display:flex; justify-content:space-between; align-items:center; margin-bottom:22px; }
.rc-who{ font-family:var(--mono); font-size:12px; letter-spacing:0.08em; color:var(--ink-dim); text-transform:uppercase; }
.rc-badge{ font-family:var(--mono); font-size:11.5px; font-weight:600; color:var(--forest); background:rgba(143,212,36,0.16); padding:5px 11px; border-radius:999px; }
.rc-ring-row{ display:flex; align-items:center; gap:22px; }
.rc-points{ font-family:var(--mono); font-size:36px; color:var(--ink); font-weight:700; line-height:1; }
.rc-points span{ display:block; font-size:12.5px; color:var(--ink-dim); font-weight:500; margin-top:6px; font-family:var(--body); }
.rc-track{ height:9px; border-radius:999px; background:var(--surface-2); overflow:hidden; margin-top:22px; border:1px solid var(--line); }
.rc-fill{ height:100%; border-radius:999px; background:var(--grad); width:0; transition:width 1.2s cubic-bezier(.2,.9,.25,1); }
.rc-next{ margin-top:14px; padding-top:14px; border-top:1px dashed var(--line-2); font-size:13px; color:var(--ink-dim); font-family:var(--mono); }
.rc-next b{ color:var(--ink); }

/* ---------- HOW IT WORKS — connected nodes ---------- */
.node-steps{ position:relative; }
.node-steps .trace{
  position:absolute; top:23px; left:60px; right:60px; height:2px;
  background:repeating-linear-gradient(90deg, var(--line-2) 0 10px, transparent 10px 18px);
  z-index:0;
}
.step-row{ display:grid; grid-template-columns:repeat(3, 1fr); gap:1px; position:relative; z-index:1; }
.step{ padding:0 30px; }
.step .node-dot{
  width:46px; height:46px; border-radius:50%; background:var(--surface);
  border:2px solid var(--lime); display:flex; align-items:center; justify-content:center;
  font-family:var(--mono); font-weight:700; font-size:16px; color:var(--forest);
  margin-bottom:22px; box-shadow:0 0 0 6px var(--paper);
}
.step h3{ font-size:21px; color:var(--ink); margin-bottom:10px; }
.step p{ font-size:14.5px; color:var(--ink-dim); line-height:1.6; }

/* ---------- TIERS ---------- */
.tiers{ display:grid; grid-template-columns:repeat(3, 1fr); gap:20px; }
.tier-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius);
  overflow:hidden; display:flex; flex-direction:column; position:relative;
}
.tier-card .tier-bar{ height:6px; background:var(--line-2); }
.tier-card.mid .tier-bar{ background:var(--lime); }
.tier-card.top .tier-bar{ background:var(--grad); }
.tier-card-body{ padding:30px 26px; display:flex; flex-direction:column; flex:1; }
.tier-card.featured{ border-color:var(--lime); box-shadow:0 24px 48px -30px rgba(30,107,51,0.35); }
.tier-card .grade-tag{
  font-family:var(--mono); font-size:12px; letter-spacing:0.06em;
  color:var(--ink-dim); text-transform:uppercase; margin-bottom:14px;
  display:flex; justify-content:space-between; align-items:center;
}
.tier-card h3{ font-size:27px; margin-bottom:6px; color:var(--ink); }
.tier-card .octane{ font-family:var(--mono); font-size:13px; color:var(--forest); margin-bottom:22px; font-weight:600; }
.tier-card ul{ list-style:none; margin:0 0 26px; padding:0; display:flex; flex-direction:column; gap:12px; flex:1; }
.tier-card li{ font-size:14.5px; color:var(--ink-dim); display:flex; gap:10px; align-items:flex-start; }
.tier-card li::before{ content:"✓"; color:var(--forest); font-weight:700; font-size:12px; margin-top:3px; flex-shrink:0; }
.tier-card .price{ font-family:var(--mono); font-size:13px; color:var(--ink-dim); margin-top:auto; }

/* ---------- CALCULATOR ---------- */
.calc{
  background:var(--surface); border:1px solid var(--line); border-radius:20px; padding:44px;
  display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:center;
}
.calc-left h3{ font-size:28px; color:var(--ink); margin-bottom:16px; }
.calc-left p{ color:var(--ink-dim); font-size:15px; margin-bottom:30px; }
.slider-row{ margin-bottom:26px; }
.slider-row label{
  display:flex; justify-content:space-between; font-family:var(--mono); font-size:13px;
  color:var(--ink-dim); margin-bottom:10px; text-transform:uppercase; letter-spacing:0.05em;
}
.slider-row label b{ color:var(--forest); font-size:14px; }
input[type=range]{
  -webkit-appearance:none; appearance:none; width:100%; height:4px; border-radius:2px;
  background:var(--line-2); outline:none;
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none; appearance:none; width:18px; height:18px; border-radius:50%;
  background:var(--lime); border:3px solid var(--forest); cursor:pointer;
}
input[type=range]::-moz-range-thumb{
  width:18px; height:18px; border-radius:50%; background:var(--lime); border:3px solid var(--forest); cursor:pointer;
}
select, .field input, .field textarea{
  font-family:var(--body); font-size:14.5px; color:var(--ink);
  background:var(--surface); border:1px solid var(--line-2); border-radius:9px;
  padding:12px 14px; width:100%;
}
select:focus, .field input:focus, .field textarea:focus{ outline:2px solid var(--lime); outline-offset:1px; border-color:var(--forest); }
.calc-right{ background:var(--paper); border:1px solid var(--line); border-radius:14px; padding:34px; }
.calc-out-row{ display:flex; justify-content:space-between; align-items:baseline; padding:16px 0; border-bottom:1px dashed var(--line-2); }
.calc-out-row:last-child{ border-bottom:none; }
.calc-out-row .label{ font-family:var(--body); font-size:14px; color:var(--ink-dim); }
.calc-out-row .value{ font-family:var(--mono); font-size:23px; color:var(--ink); font-weight:700; }
.calc-out-row .value.hi{ color:var(--forest); }

/* ---------- STATIONS ---------- */
.station-list{ display:grid; grid-template-columns:repeat(3, 1fr); gap:18px; }
.station-card{
  border:1px solid var(--line); border-radius:var(--radius); padding:24px; background:var(--surface);
  display:flex; flex-direction:column; gap:10px;
}
.station-card .row1{ display:flex; justify-content:space-between; align-items:center; gap:10px; }
.station-card h4{ font-size:19px; color:var(--ink); font-weight:700; }
.badge{ font-family:var(--mono); font-size:10.5px; letter-spacing:0.06em; text-transform:uppercase; padding:4px 9px; border-radius:5px; flex-shrink:0; }
.badge.on{ background:rgba(30,107,51,0.12); color:var(--forest); }
.station-card .addr{ font-size:13.5px; color:var(--ink-dim); }
.station-card .perks{ display:flex; gap:8px; flex-wrap:wrap; margin-top:6px; }
.chip{ font-family:var(--mono); font-size:11px; color:var(--ink-dim); border:1px solid var(--line-2); padding:3px 9px; border-radius:999px; }
.station-search{ display:flex; gap:10px; margin-bottom:32px; max-width:460px; }
.station-search input{
  flex:1; background:var(--surface); border:1px solid var(--line-2); color:var(--ink);
  padding:12px 16px; border-radius:8px; font-family:var(--body); font-size:14.5px;
}
.empty-state{
  text-align:center; padding:50px 20px; color:var(--ink-dim); font-size:14.5px;
  border:1px dashed var(--line-2); border-radius:12px; grid-column:1/-1;
}

/* ---------- CARDS: offers / testimonials / values ---------- */
.card-grid{ display:grid; grid-template-columns:repeat(3, 1fr); gap:20px; }
.card-grid.two{ grid-template-columns:repeat(2, 1fr); }
.offer-card{
  border:1px solid var(--line); border-radius:var(--radius); background:var(--surface);
  padding:26px; display:flex; flex-direction:column; gap:12px; position:relative;
}
.offer-card .kicker{ font-family:var(--mono); font-size:11px; letter-spacing:0.08em; text-transform:uppercase; color:var(--forest); font-weight:700; }
.offer-card .kicker.hot{ color:var(--red); }
.offer-card h4{ font-size:20px; color:var(--ink); }
.offer-card p{ font-size:14px; color:var(--ink-dim); line-height:1.6; }
.offer-card .exp{ margin-top:auto; padding-top:14px; border-top:1px dashed var(--line-2); font-family:var(--mono); font-size:12px; color:var(--ink-dim); }

.value-card{ border:1px solid var(--line); border-radius:var(--radius); background:var(--surface); padding:28px; }
.value-card .vnum{ font-family:var(--mono); font-size:12px; color:var(--forest); font-weight:700; margin-bottom:14px; }
.value-card h4{ font-size:19px; color:var(--ink); margin-bottom:10px; }
.value-card p{ font-size:14px; color:var(--ink-dim); line-height:1.6; }

.quote-card{
  border:1px solid var(--line); border-radius:var(--radius); background:var(--surface); padding:28px;
  display:flex; flex-direction:column; gap:16px;
}
.quote-card p{ font-size:15px; color:var(--ink); line-height:1.6; }
.quote-who{ display:flex; align-items:center; gap:12px; margin-top:auto; }
.quote-avatar{ width:38px; height:38px; border-radius:50%; background:var(--grad); flex-shrink:0; }
.quote-who .name{ font-size:13.5px; font-weight:700; color:var(--ink); }
.quote-who .role{ font-size:12.5px; color:var(--ink-dim); }

/* ---------- STAT BAND ---------- */
.stat-band{ display:grid; grid-template-columns:repeat(4, 1fr); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; }
.stat-cell{ background:var(--surface); padding:30px 24px; text-align:center; }
.stat-cell strong{ display:block; font-family:var(--mono); font-size:32px; color:var(--forest); }
.stat-cell span{ display:block; font-size:13px; color:var(--ink-dim); margin-top:8px; }

/* ---------- APP DOWNLOAD ---------- */
.app-band{
  background:var(--deep); color:var(--deep-text); border-radius:24px; padding:56px;
  display:grid; grid-template-columns:1.1fr 0.9fr; gap:40px; align-items:center; overflow:hidden; position:relative;
}
.app-band h2{ color:var(--deep-text); font-size:clamp(26px,3.4vw,38px); margin-bottom:14px; text-wrap:balance; }
.app-band p{ color:var(--deep-dim); font-size:15.5px; max-width:440px; margin-bottom:26px; }
.store-row{ display:flex; gap:12px; flex-wrap:wrap; }
.store-badge{
  display:flex; align-items:center; gap:10px; background:var(--deep-2); border:1px solid var(--deep-line);
  padding:11px 18px; border-radius:11px; text-decoration:none; color:var(--deep-text);
}
.store-badge .lbl{ font-size:14px; font-weight:700; }
.store-badge .sub{ font-size:10.5px; color:var(--deep-dim); text-transform:uppercase; letter-spacing:0.05em; }
.app-visual{ background:var(--deep-2); border:1px solid var(--deep-line); border-radius:18px; padding:26px; }
.app-visual .rc-who, .app-visual .rc-points{ color:var(--deep-text); }
.app-visual .rc-points span{ color:var(--deep-dim); }
.app-visual .rc-badge{ background:rgba(143,212,36,0.18); color:var(--lime); }
.app-visual .rc-track{ background:var(--deep-line); border-color:var(--deep-line); }
.app-visual .rc-next{ border-top-color:var(--deep-line); color:var(--deep-dim); }
.app-visual .rc-next b{ color:var(--deep-text); }

/* ---------- PARTNER FLOW ---------- */
.partner-flow{ display:grid; grid-template-columns:repeat(4, 1fr); gap:18px; }
.partner-flow .pf-item{ border:1px solid var(--line); border-radius:var(--radius); background:var(--surface); padding:24px; }
.partner-flow .pf-item .pf-num{ font-family:var(--mono); font-size:13px; color:var(--forest); font-weight:700; margin-bottom:12px; }
.partner-flow .pf-item h4{ font-size:16px; color:var(--ink); margin-bottom:8px; }
.partner-flow .pf-item p{ font-size:13.5px; color:var(--ink-dim); line-height:1.55; }

/* ---------- FORMS (account / contact) ---------- */
.form-shell{
  max-width:440px; margin:0 auto; background:var(--surface); border:1px solid var(--line);
  border-radius:20px; padding:38px; box-shadow:0 30px 60px -34px rgba(16,30,21,0.3);
}
.form-tabs{ display:flex; background:var(--surface-2); border-radius:999px; padding:4px; margin-bottom:28px; }
.form-tabs button{
  flex:1; border:none; background:transparent; padding:10px; border-radius:999px;
  font-family:var(--body); font-weight:700; font-size:14px; color:var(--ink-dim); cursor:pointer;
}
.form-tabs button.active{ background:var(--surface); color:var(--ink); box-shadow:0 2px 6px rgba(16,30,21,0.1); }
.field{ margin-bottom:18px; }
.field label{ display:block; font-size:13px; font-weight:600; color:var(--ink-dim); margin-bottom:7px; }
.form-foot{ font-size:13px; color:var(--ink-dim); text-align:center; margin-top:18px; }
.form-foot a{ color:var(--forest); font-weight:600; text-decoration:none; }
.form-note{ font-size:12.5px; color:var(--ink-dim); text-align:center; margin-top:16px; line-height:1.6; }

.contact-grid{ display:grid; grid-template-columns:0.9fr 1.1fr; gap:48px; }
.contact-info .ci-item{ padding:20px 0; border-bottom:1px solid var(--line); }
.contact-info .ci-item:first-child{ padding-top:0; }
.contact-info .ci-item .k{ font-family:var(--mono); font-size:11.5px; letter-spacing:0.06em; text-transform:uppercase; color:var(--forest); margin-bottom:6px; }
.contact-info .ci-item .v{ font-size:15px; color:var(--ink); }
.contact-info .ci-item .v.dim{ color:var(--ink-dim); font-size:14px; }

/* ---------- FAQ ---------- */
.faq{ max-width:760px; }
.faq-cats{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:36px; }
.faq-cats a{
  font-size:13px; font-weight:600; text-decoration:none; color:var(--ink-dim);
  border:1px solid var(--line-2); padding:8px 16px; border-radius:999px;
}
.faq-cats a:hover{ border-color:var(--forest); color:var(--ink); }
.faq-group{ margin-bottom:44px; }
.faq-group h3{ font-size:13px; font-family:var(--mono); letter-spacing:0.08em; text-transform:uppercase; color:var(--forest); margin-bottom:8px; }
.faq-item{ border-bottom:1px solid var(--line); }
.faq-item summary{
  cursor:pointer; list-style:none; padding:20px 0; display:flex; justify-content:space-between; align-items:center;
  gap:20px; font-family:var(--display); font-weight:600; font-size:17px; color:var(--ink);
}
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item summary .plus{ font-family:var(--mono); color:var(--forest); font-size:20px; transition:transform .2s ease; flex-shrink:0; }
.faq-item[open] summary .plus{ transform:rotate(45deg); }
.faq-item .faq-body{ padding:0 0 22px; color:var(--ink-dim); font-size:14.5px; max-width:620px; line-height:1.7; }

/* ---------- CTA BAND ---------- */
.cta-band{
  background:var(--deep);
  color:var(--deep-text);
  text-align:center; padding:88px 0; position:relative; overflow:hidden;
}
.cta-band h2{ font-size:clamp(30px, 4.6vw, 50px); color:var(--deep-text); margin-bottom:18px; text-wrap:balance; }
.cta-band p{ color:var(--deep-dim); font-size:16px; margin-bottom:32px; }
.cta-actions{ display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }

/* ---------- FOOTER ---------- */
footer{ padding:64px 0 40px; background:var(--deep); color:var(--deep-text); border-top:1px solid var(--deep-line); }
footer .logo{ color:var(--deep-text); }
footer .logo b{ color:var(--lime); }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; padding-bottom:40px; border-bottom:1px solid var(--deep-line); }
.footer-grid h5{ font-family:var(--mono); font-size:12px; letter-spacing:0.08em; text-transform:uppercase; color:var(--deep-dim); margin-bottom:16px; }
.footer-grid ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:10px; }
.footer-grid a{ text-decoration:none; color:var(--deep-dim); font-size:14px; transition:color .2s; }
.footer-grid a:hover{ color:var(--deep-text); }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:26px; flex-wrap:wrap; gap:14px; font-family:var(--mono); font-size:12px; color:var(--deep-dim); }

/* ---------- REVEAL ---------- */
.reveal{ opacity:0; transform:translateY(18px); transition:opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform:translateY(0); }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  .reveal{ opacity:1; transform:none; transition:none; }
  .strip-track{ animation:none; }
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns:1fr; }
  .rc-card{ max-width:440px; margin:0 auto; }
  .step-row{ grid-template-columns:1fr; gap:34px; }
  .node-steps .trace{ display:none; }
  .tiers{ grid-template-columns:1fr; }
  .calc{ grid-template-columns:1fr; padding:30px; }
  .station-list{ grid-template-columns:1fr 1fr; }
  .card-grid{ grid-template-columns:1fr 1fr; }
  .stat-band{ grid-template-columns:1fr 1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .app-band{ grid-template-columns:1fr; padding:36px; }
  .partner-flow{ grid-template-columns:1fr 1fr; }
  .contact-grid{ grid-template-columns:1fr; }
}
/* Nav collapses to the hamburger menu well before the general content
   breakpoint below — a horizontal nav with 5 links + sign in + a button
   has no room to breathe between 640–980px (tablet widths), so it gets
   its own, wider threshold. */
@media (max-width: 900px){
  .nav-links{
    display:flex; position:fixed; top:76px; left:0; right:0; flex-direction:column; align-items:flex-start;
    /* header has backdrop-filter, which makes it the containing block for this fixed panel —
       so height is set explicitly rather than relying on a top+bottom stretch against header's
       own (tiny) box. dvh falls back to vh automatically in browsers that don't support it. */
    height:calc(100vh - 76px); height:calc(100dvh - 76px);
    background:var(--paper); padding:28px; gap:6px; transform:translateX(100%); transition:transform .25s ease;
    z-index:49; overflow-y:auto;
  }
  .nav-links.open{ transform:translateX(0); }
  .nav-links a{ font-size:19px; padding:12px 0; width:100%; border-bottom:1px solid var(--line); }
  .nav-toggle{
    display:flex; flex-direction:column; gap:4px; background:none; border:none; cursor:pointer; padding:8px; z-index:51;
  }
  .nav-toggle span{ width:22px; height:2px; background:var(--ink); border-radius:2px; transition:transform .2s ease, opacity .2s ease; }
  .nav-toggle.open span:nth-child(1){ transform:translateY(6px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2){ opacity:0; }
  .nav-toggle.open span:nth-child(3){ transform:translateY(-6px) rotate(-45deg); }
  .nav-cta > .nav-signin, .nav-cta > .btn-primary{ display:none; }
  .nav-links-extra{ display:flex; flex-direction:column; gap:12px; width:100%; margin-top:18px; }
  .nav-links-extra .btn{ width:100%; justify-content:center; }
}
@media (max-width: 640px){
  .wrap{ padding:0 20px; }
  section{ padding:64px 0; }
  .hero{ padding:48px 0 40px; }
  .station-list{ grid-template-columns:1fr; }
  .card-grid, .card-grid.two{ grid-template-columns:1fr; }
  .stat-band{ grid-template-columns:1fr 1fr; }
  .partner-flow{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
  .footer-bottom{ flex-direction:column; align-items:flex-start; }
}