/* ─────────────────────────────────────────────────────────────
   Kaspi POS SaaS — Editorial fintech terminal
   Cream paper + ink + chartreuse. No gradient blobs.
   ───────────────────────────────────────────────────────────── */

:root {
  --paper: #f4f0e6;
  --paper-2: #ece6d7;
  --ink: #0f0f10;
  --ink-2: #1c1c1e;
  --mute: #6b6a64;
  --faint: #a8a5a0;
  --rule: #1a1a1c;
  --rule-soft: #d8d2c2;
  --acid: #d4ff3e; /* electric chartreuse */
  --acid-deep: #b8e62a;
  --warn: #ff5b1f;
  --ok: #119e5b;
  --serif: 'Instrument Serif', 'Times New Roman', serif;
  --sans: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, Menlo, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  font-size: 16px;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'ss01', 'cv11';
  /* subtle paper grain */
  background-image:
    radial-gradient(circle at 1px 1px, rgba(15, 15, 16, 0.025) 1px, transparent 0);
  background-size: 3px 3px;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input, select, textarea { font: inherit; }

::selection { background: var(--acid); color: var(--ink); }

.mono { font-family: var(--mono); font-feature-settings: 'ss01'; }
.serif { font-family: var(--serif); }
.italic { font-style: italic; }

.wrap { max-width: 1240px; margin: 0 auto; padding: 0 32px; }
.wrap-wide { max-width: 1400px; margin: 0 auto; padding: 0 32px; }

/* ─── Section scaffolding ─── */
section { scroll-margin-top: 80px; position: relative; }

.section-label {
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--mute);
  padding-top: 24px;
  border-top: 1px solid var(--ink);
  margin-bottom: 48px;
}
.section-label .num { color: var(--ink); font-weight: 600; }
.section-label .dot { flex: 1; height: 1px; background: var(--rule-soft); align-self: center; }
.section-label .meta { color: var(--faint); }

.eyebrow-acid {
  display: inline-block;
  background: var(--acid);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 4px 9px;
  border-radius: 3px;
  font-weight: 600;
}

h1, h2, h3, h4 { font-weight: 500; letter-spacing: -0.025em; line-height: 1.04; }

.display {
  font-family: var(--sans);
  font-weight: 500;
  font-size: clamp(54px, 7.4vw, 116px);
  letter-spacing: -0.045em;
  line-height: 0.94;
}
.display .it {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.02em;
}

.h-title {
  font-family: var(--sans);
  font-weight: 500;
  font-size: clamp(40px, 5.2vw, 76px);
  letter-spacing: -0.035em;
  line-height: 0.98;
}
.h-title .it {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.015em;
}

.body-lg { font-size: 19px; line-height: 1.5; color: var(--mute); max-width: 640px; }
.body-md { font-size: 15.5px; line-height: 1.55; color: var(--mute); }

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
  font-family: var(--sans);
}
.btn .arrow { transition: transform 0.2s ease; }
.btn:hover .arrow { transform: translateX(3px); }

.btn-acid { background: var(--acid); color: var(--ink); }
.btn-acid:hover { background: var(--acid-deep); }
.btn-ink { background: var(--ink); color: var(--paper); }
.btn-ink:hover { background: #2a2a2c; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }
.btn-sm { padding: 9px 16px; font-size: 13.5px; }

/* ─── Nav ─── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244, 240, 230, 0.82);
  backdrop-filter: blur(14px) saturate(160%);
  border-bottom: 1px solid var(--ink);
}
.site-nav .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.015em;
}
.brand .mark {
  width: 26px;
  height: 26px;
  background: var(--ink);
  display: grid;
  place-items: center;
  position: relative;
}
.brand .mark::before,
.brand .mark::after {
  content: '';
  position: absolute;
  background: var(--acid);
}
.brand .mark::before { width: 10px; height: 2px; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.brand .mark::after { width: 2px; height: 10px; top: 50%; left: 50%; transform: translate(-50%, -50%); }

.nav-links { display: flex; gap: 28px; font-size: 14px; color: var(--ink); font-family: var(--mono); font-feature-settings: 'ss01'; }
.nav-links a { opacity: 0.7; transition: opacity 0.15s ease; }
.nav-links a:hover { opacity: 1; }
.nav-right { display: flex; align-items: center; gap: 12px; }

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink);
  padding: 5px 12px 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--rule-soft);
  background: var(--paper);
}
.status-pill .blip {
  width: 7px; height: 7px; border-radius: 50%; background: var(--ok);
  box-shadow: 0 0 0 0 rgba(17, 158, 91, 0.55);
  animation: blip 2.4s infinite;
}
@keyframes blip {
  0% { box-shadow: 0 0 0 0 rgba(17, 158, 91, 0.55); }
  70% { box-shadow: 0 0 0 7px rgba(17, 158, 91, 0); }
  100% { box-shadow: 0 0 0 0 rgba(17, 158, 91, 0); }
}

/* ─── Hero ─── */
.hero { padding: 80px 0 0; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 64px;
  align-items: end;
}
.hero h1 { margin: 36px 0 28px; }
.hero .lead { font-size: 19px; line-height: 1.5; color: var(--mute); max-width: 480px; margin-bottom: 36px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-meta {
  margin-top: 56px;
  padding-top: 28px;
  border-top: 1px solid var(--ink);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.hero-meta .cell .v {
  font-family: var(--sans);
  font-size: 32px;
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1;
}
.hero-meta .cell .v .it { font-family: var(--serif); font-style: italic; font-weight: 400; }
.hero-meta .cell .k {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--mute);
  margin-top: 8px;
}

/* ─── Live demo card ─── */
.demo {
  background: var(--ink);
  color: var(--paper);
  border-radius: 6px;
  overflow: hidden;
  font-family: var(--mono);
  font-size: 13px;
  box-shadow: 0 30px 60px -30px rgba(15, 15, 16, 0.35);
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 540px;
}
.demo-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 11.5px;
  color: rgba(244, 240, 230, 0.55);
  letter-spacing: 0.04em;
}
.demo-bar .light { width: 9px; height: 9px; border-radius: 50%; }
.demo-bar .light.r { background: #ff5b56; }
.demo-bar .light.y { background: #f1bd2c; }
.demo-bar .light.g { background: #27c33f; }
.demo-bar .f { margin-left: auto; text-transform: uppercase; }

.demo-body { padding: 22px 22px 8px; line-height: 1.65; min-height: 0; overflow: hidden; }
.demo-body .ln { white-space: pre; }
.demo-body .c-com { color: #6c6961; }
.demo-body .c-str { color: var(--acid); }
.demo-body .c-key { color: #ffb37a; }
.demo-body .c-num { color: #ffd58a; }
.demo-body .c-cmd { color: #fff; }
.demo-body .caret {
  display: inline-block; width: 7px; height: 14px; background: var(--acid);
  vertical-align: -2px; margin-left: 2px; animation: caret 1s steps(2) infinite;
}
@keyframes caret { 50% { opacity: 0; } }

.demo-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 18px 22px;
  display: grid;
  grid-template-columns: 92px 1fr auto;
  gap: 18px;
  align-items: center;
}
.demo-qr {
  width: 92px; height: 92px;
  background: var(--paper);
  border-radius: 4px;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
}
.demo-qr svg { width: 88%; height: 88%; }
.demo-state .label {
  font-size: 10.5px; letter-spacing: 0.08em; text-transform: uppercase;
  color: rgba(244, 240, 230, 0.5); margin-bottom: 6px;
}
.demo-state .v { font-size: 15px; color: var(--paper); }
.demo-state .v.ok { color: var(--ok); }
.demo-amt {
  text-align: right;
  font-family: var(--mono);
}
.demo-amt .amount { font-size: 22px; color: var(--paper); }
.demo-amt .sub { font-size: 11px; color: rgba(244, 240, 230, 0.5); margin-top: 4px; letter-spacing: 0.04em; text-transform: uppercase; }

/* ─── Ticker ─── */
.ticker {
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  margin-top: 80px;
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
  position: relative;
}
.ticker .track {
  display: flex;
  gap: 56px;
  padding: 16px 0;
  white-space: nowrap;
  animation: tick 50s linear infinite;
  width: max-content;
  font-family: var(--mono);
  font-size: 13px;
}
.ticker .item { display: inline-flex; gap: 12px; align-items: center; color: rgba(244, 240, 230, 0.85); }
.ticker .item .amt { color: var(--acid); }
.ticker .item .time { color: rgba(244, 240, 230, 0.45); }
.ticker .item .dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--acid);
}
@keyframes tick { to { transform: translateX(-50%); } }

/* ─── Section: Problem ─── */
.sec { padding: 100px 0; }

.sec-head { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: end; }
.sec-head .right { color: var(--mute); font-size: 16px; line-height: 1.55; max-width: 420px; }

.problem-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 80px;
  border-top: 1px solid var(--ink);
  border-left: 1px solid var(--ink);
}
.problem-cell {
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  padding: 28px 26px 32px;
  background: var(--paper);
  position: relative;
  min-height: 260px;
  display: flex; flex-direction: column;
}
.problem-cell .num {
  font-family: var(--mono); font-size: 11.5px; color: var(--mute);
  letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 24px;
}
.problem-cell h3 {
  font-family: var(--serif); font-style: italic; font-weight: 400;
  font-size: 32px; letter-spacing: -0.015em; line-height: 1.05; margin-bottom: 12px;
}
.problem-cell p { color: var(--mute); font-size: 14.5px; line-height: 1.5; }
.problem-cell .strike {
  margin-top: auto;
  padding-top: 18px;
  font-family: var(--mono); font-size: 11.5px;
  color: var(--warn);
  letter-spacing: 0.04em; text-transform: uppercase;
}

/* ─── How it works ─── */
.sec-dark { background: var(--ink); color: var(--paper); }
.sec-dark .section-label { border-top-color: rgba(244, 240, 230, 0.18); color: rgba(244, 240, 230, 0.55); }
.sec-dark .section-label .num { color: var(--paper); }
.sec-dark .section-label .dot { background: rgba(244, 240, 230, 0.15); }
.sec-dark .body-lg, .sec-dark .body-md { color: rgba(244, 240, 230, 0.6); }
.sec-dark .sec-head .right { color: rgba(244, 240, 230, 0.6); }

.steps {
  margin-top: 72px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(244, 240, 230, 0.15);
  border-top: 1px solid rgba(244, 240, 230, 0.15);
  border-bottom: 1px solid rgba(244, 240, 230, 0.15);
}
.step {
  background: var(--ink);
  padding: 32px 26px 36px;
  display: flex;
  flex-direction: column;
  position: relative;
  min-height: 280px;
}
.step .step-head {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 36px;
}
.step .n {
  font-family: var(--serif); font-style: italic; font-weight: 400;
  font-size: 56px; letter-spacing: -0.02em; line-height: 1;
  color: var(--acid);
}
.step .time {
  font-family: var(--mono); font-size: 11.5px;
  color: rgba(244, 240, 230, 0.6);
  letter-spacing: 0.04em; text-transform: uppercase;
}
.step h3 {
  font-family: var(--sans); font-weight: 500; font-size: 19px;
  letter-spacing: -0.01em; margin-bottom: 8px; color: var(--paper);
}
.step p { font-size: 14px; line-height: 1.55; color: rgba(244, 240, 230, 0.6); margin-bottom: 14px; }
.step .code-hint {
  margin-top: auto;
  font-family: var(--mono); font-size: 11.5px;
  color: var(--acid);
  background: rgba(212, 255, 62, 0.08);
  border: 1px solid rgba(212, 255, 62, 0.2);
  padding: 6px 10px;
  border-radius: 3px;
  align-self: flex-start;
}

/* ─── Security / cashier role diagram ─── */
.trust-grid {
  margin-top: 72px;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: start;
}
.role-card {
  border: 1px solid var(--ink);
  border-radius: 4px;
  background: var(--paper);
  padding: 28px 30px;
}
.role-card .role-head {
  display: flex; justify-content: space-between; align-items: center;
  padding-bottom: 18px; border-bottom: 1px solid var(--rule-soft); margin-bottom: 18px;
}
.role-card .role-head .who { font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--mute); }
.role-card .role-head .who b { color: var(--ink); font-weight: 600; }
.role-card .role-head .who.acc { color: var(--ink); }
.perm-row {
  display: flex; align-items: center; gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--rule-soft);
}
.perm-row:last-child { border-bottom: 0; }
.perm-row .mk {
  width: 22px; height: 22px; display: grid; place-items: center;
  border-radius: 50%; font-size: 12px;
  flex: 0 0 22px;
}
.perm-row.y .mk { background: var(--ok); color: #fff; }
.perm-row.n .mk { background: var(--paper-2); color: var(--mute); border: 1px solid var(--rule-soft); }
.perm-row .what { font-size: 15px; }
.perm-row.n .what { color: var(--mute); text-decoration: line-through; text-decoration-thickness: 1px; }
.perm-row .tag {
  margin-left: auto;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.04em; text-transform: uppercase;
  padding: 3px 8px; border-radius: 3px;
}
.perm-row.y .tag { background: rgba(17, 158, 91, 0.12); color: var(--ok); }
.perm-row.n .tag { background: rgba(255, 91, 31, 0.12); color: var(--warn); }

.trust-points { display: grid; gap: 24px; }
.trust-point {
  border-top: 1px solid var(--ink);
  padding-top: 18px;
}
.trust-point .num { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--mute); margin-bottom: 8px; }
.trust-point h4 { font-family: var(--serif); font-style: italic; font-weight: 400; font-size: 24px; line-height: 1.15; margin-bottom: 8px; }
.trust-point p { color: var(--mute); font-size: 15px; line-height: 1.55; }

/* ─── Flow diagram (money flow) ─── */
.flow {
  margin-top: 48px;
  border: 1px solid var(--ink);
  border-radius: 4px;
  background: var(--paper);
  padding: 36px 32px 28px;
}
.flow .flow-head {
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--mute);
  margin-bottom: 24px;
}
.flow-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 16px;
}
.flow-node {
  border: 1px solid var(--ink); padding: 14px 18px; border-radius: 4px; text-align: center;
  background: var(--paper);
}
.flow-node b { display: block; font-size: 14px; font-weight: 500; }
.flow-node span { display: block; font-family: var(--mono); font-size: 11px; color: var(--mute); margin-top: 4px; letter-spacing: 0.04em; text-transform: uppercase; }
.flow-arrow {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  font-family: var(--mono); font-size: 11px; color: var(--mute);
}
.flow-arrow .line { width: 72px; height: 1px; background: var(--ink); position: relative; }
.flow-arrow .line::after {
  content: ''; position: absolute; right: -1px; top: -3px;
  border-left: 6px solid var(--ink); border-top: 3.5px solid transparent; border-bottom: 3.5px solid transparent;
}
.flow-arrow .lbl { font-size: 10.5px; letter-spacing: 0.06em; text-transform: uppercase; }
.flow-side {
  margin-top: 20px;
  font-family: var(--mono); font-size: 11.5px; color: var(--mute);
  display: flex; gap: 28px; justify-content: center; letter-spacing: 0.04em; text-transform: uppercase;
}
.flow-side b { color: var(--ink); }

/* ─── Code playground ─── */
.dev-grid {
  margin-top: 72px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: start;
}
.playground {
  background: var(--ink);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 30px 60px -30px rgba(15, 15, 16, 0.4);
}
.lang-tabs {
  display: flex;
  border-bottom: 1px solid rgba(244, 240, 230, 0.1);
  background: rgba(0, 0, 0, 0.2);
}
.lang-tab {
  padding: 14px 18px;
  font-family: var(--mono); font-size: 12px;
  color: rgba(244, 240, 230, 0.55);
  letter-spacing: 0.04em; text-transform: uppercase;
  border-right: 1px solid rgba(244, 240, 230, 0.1);
  cursor: pointer;
  transition: color 0.12s ease, background 0.12s ease;
}
.lang-tab:hover { color: var(--paper); }
.lang-tab.active { color: var(--acid); background: var(--ink); position: relative; }
.lang-tab.active::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; background: var(--ink);
}
.playground pre {
  padding: 22px 24px;
  font-family: var(--mono);
  font-size: 13px;
  color: rgba(244, 240, 230, 0.9);
  line-height: 1.65;
  overflow-x: auto;
  min-height: 360px;
}
.playground .c-com { color: #6c6961; }
.playground .c-str { color: var(--acid); }
.playground .c-key { color: #ffb37a; }
.playground .c-num { color: #ffd58a; }
.playground .c-cmd { color: #fff; font-weight: 500; }

.endpoint-list { display: grid; gap: 0; border-top: 1px solid var(--ink); }
.endpoint {
  display: grid;
  grid-template-columns: 64px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 18px 4px;
  border-bottom: 1px solid var(--rule-soft);
  transition: padding 0.15s ease;
}
.endpoint:hover { padding-left: 12px; }
.endpoint .method {
  font-family: var(--mono); font-size: 11px; font-weight: 600;
  letter-spacing: 0.04em; padding: 4px 8px; border-radius: 3px;
  text-align: center;
}
.endpoint .method.post { background: var(--acid); color: var(--ink); }
.endpoint .method.get { background: var(--ink); color: var(--paper); }
.endpoint .method.del { background: var(--warn); color: var(--paper); }
.endpoint .path { font-family: var(--mono); font-size: 14px; color: var(--ink); }
.endpoint .desc { font-size: 13px; color: var(--mute); margin-top: 2px; }
.endpoint .arr { font-family: var(--mono); font-size: 14px; color: var(--mute); }
.endpoint:hover .arr { color: var(--ink); }

/* ─── Webhook console ─── */
.console-grid {
  margin-top: 64px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.console {
  background: var(--ink);
  border-radius: 6px;
  overflow: hidden;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--paper);
  min-height: 380px;
  display: grid;
  grid-template-rows: auto 1fr;
}
.console-head {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(244, 240, 230, 0.1);
  font-size: 11.5px; color: rgba(244, 240, 230, 0.55);
  letter-spacing: 0.04em;
}
.console-head .live { color: var(--acid); margin-left: auto; display: inline-flex; align-items: center; gap: 6px; }
.console-head .live::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--acid);
  animation: blip2 1.2s ease-in-out infinite;
}
@keyframes blip2 { 50% { opacity: 0.3; } }
.console-body {
  padding: 8px 16px 16px;
  overflow-y: auto;
  max-height: 360px;
  display: flex; flex-direction: column-reverse;
}
.event {
  padding: 12px 0;
  border-bottom: 1px solid rgba(244, 240, 230, 0.06);
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  animation: slideIn 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}
@keyframes slideIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}
.event .t { color: rgba(244, 240, 230, 0.45); font-size: 11.5px; }
.event .evt { font-size: 12.5px; }
.event .evt b { color: var(--paper); }
.event .evt .acc { color: var(--acid); }
.event .stat { font-size: 11.5px; padding: 2px 7px; border-radius: 3px; }
.event .stat.ok { background: rgba(17, 158, 91, 0.15); color: var(--ok); }
.event .stat.fail { background: rgba(255, 91, 31, 0.15); color: var(--warn); }
.event .stat.exp { background: rgba(244, 240, 230, 0.08); color: rgba(244, 240, 230, 0.55); }

/* ─── Cases bento ─── */
.cases {
  margin-top: 72px;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-auto-rows: 220px;
  gap: 1px;
  background: var(--ink);
  border: 1px solid var(--ink);
}
.case {
  background: var(--paper);
  padding: 26px;
  display: flex; flex-direction: column; justify-content: space-between;
  position: relative; overflow: hidden;
}
.case .top { display: flex; justify-content: space-between; align-items: flex-start; }
.case .id { font-family: var(--mono); font-size: 11px; color: var(--mute); letter-spacing: 0.04em; text-transform: uppercase; }
.case h3 { font-family: var(--serif); font-style: italic; font-weight: 400; font-size: 30px; line-height: 1; letter-spacing: -0.015em; margin-bottom: 8px; }
.case p { font-size: 14px; color: var(--mute); line-height: 1.5; }
.case.big { grid-column: span 3; }
.case.med { grid-column: span 2; }
.case.sm { grid-column: span 1; }
.case .glyph {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em; color: var(--mute); text-transform: uppercase;
}
.case.feat { background: var(--acid); }
.case.feat h3, .case.feat p, .case.feat .glyph, .case.feat .id { color: var(--ink); }
.case.dark { background: var(--ink); color: var(--paper); }
.case.dark h3, .case.dark .glyph, .case.dark .id, .case.dark p { color: var(--paper); }
.case.dark p { color: rgba(244, 240, 230, 0.65); }

/* ─── Pricing ─── */
.price-wrap {
  margin-top: 72px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.calc {
  border: 1px solid var(--ink);
  background: var(--paper);
  border-radius: 4px;
  padding: 36px 32px;
}
.calc .label { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--mute); margin-bottom: 10px; }
.calc .volume {
  font-family: var(--sans); font-weight: 500; font-size: 56px; letter-spacing: -0.03em; line-height: 1;
}
.calc .volume .cur { font-family: var(--serif); font-style: italic; font-weight: 400; color: var(--mute); font-size: 36px; margin-left: 8px; vertical-align: 4px; }
.slider {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  background: var(--rule-soft);
  border-radius: 999px;
  outline: none;
  margin: 30px 0 18px;
}
.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--ink);
  border: 4px solid var(--acid);
  cursor: pointer;
  transition: transform 0.15s ease;
}
.slider::-webkit-slider-thumb:hover { transform: scale(1.1); }
.slider::-moz-range-thumb {
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--ink); border: 4px solid var(--acid); cursor: pointer;
}
.range-marks { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 11px; color: var(--mute); letter-spacing: 0.04em; text-transform: uppercase; }

.calc-result {
  margin-top: 32px; padding-top: 28px; border-top: 1px solid var(--ink);
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
}
.calc-result .cell .k { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--mute); }
.calc-result .cell .v {
  font-family: var(--sans); font-weight: 500; font-size: 32px; letter-spacing: -0.03em; line-height: 1; margin-top: 8px;
}
.calc-result .cell .v.acid { color: var(--ink); }
.calc-result .cell .v .it { font-family: var(--serif); font-style: italic; font-weight: 400; }
.calc-result .cell .sub { font-family: var(--mono); font-size: 11px; color: var(--mute); margin-top: 6px; letter-spacing: 0.04em; text-transform: uppercase; }

.tiers {
  border: 1px solid var(--ink);
  border-radius: 4px;
}
.tier-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  padding: 14px 22px;
  border-bottom: 1px solid var(--rule-soft);
  font-size: 15px;
  transition: background 0.15s ease;
}
.tier-row:last-child { border-bottom: 0; }
.tier-row.active { background: var(--ink); color: var(--paper); }
.tier-row.active .fee { color: var(--acid); }
.tier-row .vol { font-family: var(--mono); font-size: 13.5px; letter-spacing: 0.02em; }
.tier-row .fee { font-family: var(--sans); font-weight: 500; font-size: 18px; }
.tier-row .fee .it { font-family: var(--serif); font-style: italic; font-weight: 400; }

/* ─── Comparison ─── */
.cmp-tbl {
  width: 100%; border-collapse: collapse; margin-top: 60px;
  font-family: var(--sans);
}
.cmp-tbl th, .cmp-tbl td {
  padding: 18px 20px;
  text-align: left;
  border-bottom: 1px solid var(--rule-soft);
  font-size: 15px;
}
.cmp-tbl thead th {
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--mute); font-weight: 500;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 14px;
}
.cmp-tbl thead th.us { color: var(--ink); background: var(--acid); }
.cmp-tbl tbody td.us { background: rgba(212, 255, 62, 0.18); font-weight: 500; color: var(--ink); }
.cmp-tbl tbody td.us b { font-weight: 600; }
.cmp-tbl tbody td:first-child { font-family: var(--mono); font-size: 13px; color: var(--mute); text-transform: uppercase; letter-spacing: 0.04em; }
.cmp-tbl td .x { color: var(--warn); font-family: var(--mono); margin-right: 6px; }
.cmp-tbl td .v { color: var(--ok); font-family: var(--mono); margin-right: 6px; }

/* ─── FAQ ─── */
.faq-grid {
  display: grid;
  grid-template-columns: 0.4fr 1fr;
  gap: 64px;
  margin-top: 72px;
  align-items: start;
}
.faq-grid .left { position: sticky; top: 100px; }
.faq-list { display: grid; gap: 0; border-top: 1px solid var(--ink); }
.faq-item {
  border-bottom: 1px solid var(--rule-soft);
  padding: 4px 0;
}
.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 24px 0;
  display: grid;
  grid-template-columns: 48px 1fr 32px;
  gap: 14px;
  align-items: center;
  font-family: var(--sans);
  font-weight: 500;
  font-size: 19px;
  letter-spacing: -0.015em;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item .qn { font-family: var(--mono); font-size: 12px; color: var(--mute); letter-spacing: 0.04em; }
.faq-item .plus {
  width: 32px; height: 32px; border: 1px solid var(--ink); border-radius: 50%;
  display: grid; place-items: center; transition: transform 0.2s ease, background 0.2s ease;
  font-size: 16px; font-weight: 400;
}
.faq-item[open] .plus { transform: rotate(45deg); background: var(--acid); }
.faq-item .a {
  padding: 0 0 28px 62px;
  color: var(--mute);
  font-size: 15.5px;
  line-height: 1.6;
  max-width: 720px;
}

/* ─── Final CTA ─── */
.cta {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 120px 0 100px;
  border-top: 1px solid var(--ink);
}
.cta .display { font-size: clamp(56px, 9vw, 140px); }
.cta .display .it { color: var(--acid); }
.cta .cta-meta {
  margin-top: 56px;
  display: flex; gap: 16px; align-items: center; flex-wrap: wrap;
}
.cta .small {
  font-family: var(--mono); font-size: 12px; color: rgba(244, 240, 230, 0.55);
  letter-spacing: 0.04em; text-transform: uppercase;
  margin-left: 16px;
}

/* ─── Footer ─── */
footer {
  background: var(--ink);
  color: rgba(244, 240, 230, 0.7);
  padding: 64px 0 40px;
  border-top: 1px solid rgba(244, 240, 230, 0.1);
}
.foot-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 56px;
}
.foot-grid h5 {
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.04em; text-transform: uppercase;
  color: rgba(244, 240, 230, 0.45); margin-bottom: 18px; font-weight: 500;
}
.foot-grid a, .foot-grid p {
  display: block; color: rgba(244, 240, 230, 0.75); font-size: 14px; margin-bottom: 10px; line-height: 1.5;
}
.foot-grid a:hover { color: var(--acid); }
.foot-brand { font-family: var(--sans); font-weight: 600; font-size: 18px; color: var(--paper); margin-bottom: 12px; }
.disclaimer {
  margin-top: 56px; padding-top: 28px;
  border-top: 1px solid rgba(244, 240, 230, 0.1);
  font-family: var(--mono); font-size: 11.5px; line-height: 1.7; color: rgba(244, 240, 230, 0.4);
  letter-spacing: 0.02em;
  display: grid; grid-template-columns: 1fr auto; gap: 32px; align-items: end;
}
.disclaimer .big {
  font-family: var(--serif); font-style: italic; font-size: 88px; line-height: 0.9;
  color: var(--paper); letter-spacing: -0.02em;
  text-transform: none;
}
.foot-legal {
  display: flex; flex-wrap: wrap; gap: 8px 20px;
  margin-bottom: 18px; padding-bottom: 16px;
  border-bottom: 1px solid rgba(244, 240, 230, 0.1);
}
.foot-legal a {
  color: rgba(244, 240, 230, 0.75);
  font-family: var(--mono); font-size: 11.5px;
  letter-spacing: 0.04em; text-transform: uppercase;
}
.foot-legal a:hover { color: var(--acid); }

/* ─── Responsive ─── */
@media (max-width: 1040px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-meta { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .problem-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .trust-grid, .dev-grid, .console-grid, .price-wrap, .faq-grid { grid-template-columns: 1fr; gap: 40px; }
  .cases { grid-template-columns: repeat(2, 1fr); }
  .case.big, .case.med, .case.sm { grid-column: span 1; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .sec-head { grid-template-columns: 1fr; gap: 24px; }
  .flow-row { grid-template-columns: 1fr; gap: 20px; }
  .flow-arrow { transform: rotate(90deg); }
}
@media (max-width: 640px) {
  .wrap, .wrap-wide { padding: 0 20px; }
  .sec { padding: 72px 0; }
  .problem-grid { grid-template-columns: 1fr; }
  .hero-meta { grid-template-columns: 1fr 1fr; }
  .disclaimer { grid-template-columns: 1fr; }
  .disclaimer .big { font-size: 56px; }
  .nav-right .hide-mob { display: none; }
}