/* EsepPay — публичные страницы (лендинг, документация, оплата, демо) */
:root {
  --ink: #0b1220; --text: #1e293b; --muted: #64748b; --line: #e2e8f0; --bg: #f6f8fb; --card: #fff;
  --primary: #2563eb; --primary-dark: #1d4ed8; --primary-soft: #eaf1ff; --green: #16a34a; --green-soft: #e8f8ee;
  --amber: #d97706; --amber-soft: #fff4e0; --red: #dc2626; --red-soft: #fdecec; --kaspi: #f14635;
  --radius: 16px; --shadow: 0 10px 30px -12px rgba(15, 23, 42, .18); --shadow-sm: 0 2px 10px -4px rgba(15, 23, 42, .12);
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.55; font-size: 16px; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { max-width: 100%; }
h1, h2, h3, h4 { color: var(--ink); line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 4.6vw, 3.4rem); font-weight: 800; letter-spacing: -.03em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); font-weight: 800; letter-spacing: -.02em; }
h3 { font-size: 1.15rem; font-weight: 700; }
p { margin: 0 0 1em; }
code, pre { font-family: var(--mono); font-size: .9em; }
code { background: #eef2f7; padding: .1em .4em; border-radius: 6px; color: #0f172a; }
pre { background: #0f172a; color: #e2e8f0; padding: 18px 20px; border-radius: 12px; overflow: auto; line-height: 1.5; font-size: .86rem; }
pre code { background: none; padding: 0; color: inherit; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 22px; border-radius: 12px; font-weight: 600; border: 1px solid transparent; cursor: pointer; font-family: inherit; font-size: 1rem; line-height: 1.2; transition: .15s; text-decoration: none !important; white-space: nowrap; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 8px 20px -8px rgba(37, 99, 235, .6); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn-outline { background: #fff; color: var(--ink); border-color: var(--line); }
.btn-outline:hover { border-color: #cbd5e1; background: #f8fafc; }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: rgba(15, 23, 42, .06); }
.btn-lg { padding: 15px 28px; font-size: 1.05rem; border-radius: 14px; }
.btn-sm { padding: 8px 14px; font-size: .9rem; border-radius: 10px; }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 5px 12px; border-radius: 999px; font-size: .82rem; font-weight: 600; background: var(--primary-soft); color: var(--primary-dark); }
.pill-green { background: var(--green-soft); color: #15803d; }
.pill-amber { background: var(--amber-soft); color: #b45309; }
.muted { color: var(--muted); }
.small { font-size: .9rem; }
.center { text-align: center; }
.grid { display: grid; gap: 20px; }
.grid > * { min-width: 0; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-sm); }
.section { padding: 84px 0; }
.section-head { max-width: 700px; margin: 0 auto 44px; text-align: center; }
.section-head .pill { margin-bottom: 14px; }
.section-head p { color: var(--muted); font-size: 1.08rem; }
/* шапка */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(246, 248, 251, .85); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(226, 232, 240, .8); }
.nav .container { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 20px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.25rem; color: var(--ink); letter-spacing: -.02em; text-decoration: none !important; }
.logo-mark { width: 34px; height: 34px; border-radius: 10px; background: linear-gradient(135deg, #2563eb, #0ea5e9); display: inline-grid; place-items: center; color: #fff; font-weight: 900; font-size: 1rem; box-shadow: 0 6px 14px -6px rgba(37, 99, 235, .7); }
.logo span b { color: var(--primary); }
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a { color: var(--text); font-weight: 500; font-size: .95rem; }
.nav-links a:hover { color: var(--primary); text-decoration: none; }
.nav-actions { display: flex; gap: 10px; align-items: center; }
.nav-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: 10px; width: 42px; height: 42px; cursor: pointer; font-size: 1.2rem; }
/* герой */
.hero { padding: 80px 0 60px; position: relative; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: -200px -100px auto; height: 600px; background: radial-gradient(600px 300px at 20% 30%, rgba(37, 99, 235, .14), transparent 70%), radial-gradient(500px 300px at 80% 20%, rgba(14, 165, 233, .12), transparent 70%); z-index: -1; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 50px; align-items: center; }
.hero h1 { margin: 16px 0 18px; }
.hero .lead { font-size: 1.22rem; color: var(--muted); max-width: 560px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 28px 0 18px; }
.hero-note { color: var(--muted); font-size: .95rem; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.hero-note b { color: var(--ink); }
.stats-row { display: flex; gap: 34px; flex-wrap: wrap; margin-top: 36px; }
.stat b { display: block; font-size: 1.7rem; font-weight: 800; color: var(--ink); letter-spacing: -.02em; }
.stat span { color: var(--muted); font-size: .9rem; }
/* демо-окно оплаты в герое */
.phone-demo { background: #fff; border: 1px solid var(--line); border-radius: 26px; padding: 22px; box-shadow: var(--shadow); max-width: 400px; margin: 0 0 56px auto; position: relative; }
.phone-demo .pd-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.phone-demo .pd-amount { font-size: 2rem; font-weight: 800; color: var(--ink); letter-spacing: -.02em; }
.phone-demo .pd-qr { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 14px; display: grid; place-items: center; margin: 12px 0; }
.phone-demo .pd-qr svg { width: 180px; height: 180px; }
.pd-flow { display: grid; gap: 8px; margin-top: 10px; }
.pd-step { display: flex; gap: 10px; align-items: center; font-size: .9rem; color: var(--text); padding: 9px 12px; border-radius: 12px; background: #f8fafc; border: 1px solid var(--line); }
.pd-step .dot { width: 10px; height: 10px; border-radius: 50%; background: #cbd5e1; flex: none; }
.pd-step.is-on .dot { background: var(--green); box-shadow: 0 0 0 4px rgba(22, 163, 74, .18); }
.pd-code { position: absolute; left: -90px; bottom: -56px; background: #0f172a; color: #e2e8f0; padding: 14px 16px; border-radius: 14px; font-family: var(--mono); font-size: .78rem; box-shadow: var(--shadow); max-width: 310px; line-height: 1.5; }
.pd-code .k { color: #7dd3fc; } .pd-code .s { color: #86efac; } .pd-code .n { color: #fcd34d; }
/* как работает */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
.step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; position: relative; }
.step::before { counter-increment: step; content: counter(step); display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 12px; background: var(--primary-soft); color: var(--primary-dark); font-weight: 800; margin-bottom: 14px; }
.step h3 { font-size: 1.05rem; }
.step p { color: var(--muted); margin: 0; font-size: .95rem; }
.not-needed { margin-top: 26px; display: flex; gap: 10px; align-items: center; justify-content: center; flex-wrap: wrap; color: var(--muted); }
.not-needed span { background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; font-size: .9rem; color: var(--text); text-decoration: line-through; text-decoration-color: var(--red); }
/* кому подходит / возможности */
.feature { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.feature .ico { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary-dark); font-size: 1.3rem; margin-bottom: 14px; }
.feature h3 { font-size: 1.08rem; }
.feature p, .feature li { color: var(--muted); font-size: .95rem; }
.feature ul { margin: 10px 0 0; padding-left: 18px; }
.feature li { margin-bottom: 4px; }
/* демо */
.demo-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; display: flex; flex-direction: column; gap: 10px; }
.demo-card h3 { margin: 0; }
.demo-card p { color: var(--muted); flex: 1; }
/* тарифы */
.plans { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; align-items: stretch; }
.plan { background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 26px; display: flex; flex-direction: column; position: relative; }
.plan.is-popular { border-color: var(--primary); box-shadow: 0 16px 40px -20px rgba(37, 99, 235, .6); }
.plan .badge { position: absolute; top: -12px; left: 24px; background: var(--primary); color: #fff; font-size: .75rem; font-weight: 700; padding: 4px 10px; border-radius: 999px; }
.plan .price { font-size: 2rem; font-weight: 800; color: var(--ink); letter-spacing: -.02em; margin: 6px 0 0; }
.plan .price small { font-size: .95rem; color: var(--muted); font-weight: 500; }
.plan .limit { color: var(--primary-dark); font-weight: 700; margin: 10px 0 14px; background: var(--primary-soft); display: inline-block; padding: 5px 10px; border-radius: 8px; font-size: .9rem; }
.plan ul { list-style: none; padding: 0; margin: 0 0 20px; flex: 1; }
.plan li { padding: 6px 0 6px 26px; position: relative; color: var(--text); font-size: .93rem; border-bottom: 1px dashed #eef2f7; }
.plan li::before { content: "✓"; position: absolute; left: 2px; color: var(--green); font-weight: 800; }
.plan-note { color: var(--muted); font-size: .9rem; max-width: 900px; margin: 26px auto 0; text-align: center; }
/* FAQ */
.faq { max-width: 820px; margin: 0 auto; }
.faq details { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 0 22px; margin-bottom: 10px; }
.faq summary { cursor: pointer; padding: 18px 0; font-weight: 600; color: var(--ink); list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::after { content: "+"; color: var(--primary); font-size: 1.3rem; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--muted); padding-bottom: 18px; margin: 0; }
/* CTA */
.cta { background: linear-gradient(135deg, #0f172a, #1e3a8a); color: #fff; border-radius: 28px; padding: 60px 40px; text-align: center; }
.cta h2 { color: #fff; }
.cta p { color: #c7d2fe; font-size: 1.1rem; }
.cta .btn-primary { background: #fff; color: var(--primary-dark); box-shadow: none; }
.cta .btn-primary:hover { background: #eef2ff; }
/* подвал */
footer { padding: 50px 0 40px; border-top: 1px solid var(--line); color: var(--muted); font-size: .92rem; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 30px; }
.foot-grid h4 { font-size: .95rem; margin-bottom: 10px; }
.foot-grid a { display: block; color: var(--muted); margin-bottom: 7px; }
.foot-grid a:hover { color: var(--primary); }
.foot-bottom { margin-top: 30px; padding-top: 20px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: .85rem; }
.notice { background: var(--amber-soft); border: 1px solid #fde4b8; color: #92400e; padding: 12px 16px; border-radius: 12px; font-size: .92rem; }
/* страница оплаты */
.pay-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.pay-card { width: 100%; max-width: 440px; background: #fff; border-radius: 24px; border: 1px solid var(--line); box-shadow: var(--shadow); padding: 28px; text-align: center; }
.pay-card .merchant { color: var(--muted); font-size: .92rem; }
.pay-card .amount { font-size: 2.4rem; font-weight: 800; letter-spacing: -.03em; color: var(--ink); margin: 6px 0 2px; }
.pay-card .desc { color: var(--text); margin-bottom: 16px; }
.pay-qr { background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 14px; margin: 0 auto 14px; width: 260px; height: 260px; display: grid; place-items: center; }
.pay-qr img { width: 100%; height: 100%; }
.pay-status { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 999px; font-weight: 600; font-size: .92rem; }
.pay-status.pending { background: var(--primary-soft); color: var(--primary-dark); }
.pay-status.paid { background: var(--green-soft); color: #15803d; }
.pay-status.failed { background: var(--red-soft); color: #b91c1c; }
.pay-status .spin { width: 14px; height: 14px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.pay-steps { text-align: left; margin: 18px 0 0; padding: 0; list-style: none; color: var(--muted); font-size: .9rem; }
.pay-steps li { padding: 6px 0 6px 28px; position: relative; }
.pay-steps li::before { content: attr(data-n); position: absolute; left: 0; top: 5px; width: 20px; height: 20px; border-radius: 50%; background: var(--primary-soft); color: var(--primary-dark); font-size: .75rem; font-weight: 700; display: grid; place-items: center; }
.pay-result { padding: 30px 10px 10px; }
.pay-result .big { width: 84px; height: 84px; border-radius: 50%; display: grid; place-items: center; margin: 0 auto 16px; font-size: 2.4rem; }
.pay-result .big.ok { background: var(--green-soft); color: var(--green); }
.pay-result .big.bad { background: var(--red-soft); color: var(--red); }
.pay-foot { margin-top: 18px; color: var(--muted); font-size: .8rem; }
.kaspi-btn { background: var(--kaspi); color: #fff; }
.kaspi-btn:hover { background: #d93a2b; }
/* документация */
.docs-layout { display: grid; grid-template-columns: 260px 1fr; gap: 40px; padding: 30px 0 80px; }
.docs-layout > * { min-width: 0; }
.docs-side { position: sticky; top: 88px; align-self: start; max-height: calc(100vh - 110px); overflow: auto; font-size: .92rem; }
.docs-side a { display: block; padding: 6px 10px; border-radius: 8px; color: var(--text); }
.docs-side a:hover, .docs-side a.active { background: var(--primary-soft); color: var(--primary-dark); text-decoration: none; }
.docs-side .grp { font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 16px 10px 6px; font-weight: 700; }
.docs-main h2 { margin-top: 56px; padding-top: 10px; border-top: 1px solid var(--line); }
.docs-main h2:first-child { margin-top: 0; border: 0; }
.docs-main h3 { margin-top: 34px; }
.tbl-scroll { margin: 14px 0 20px; overflow-x: auto; }
.endpoint { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-family: var(--mono); font-size: .95rem; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px; margin: 14px 0; }
.method { font-weight: 800; font-size: .78rem; padding: 3px 9px; border-radius: 7px; color: #fff; font-family: var(--font); }
.method.get { background: #0ea5e9; } .method.post { background: var(--green); } .method.patch { background: var(--amber); } .method.put { background: #7c3aed; } .method.delete { background: var(--red); }
table.doc { width: 100%; border-collapse: collapse; font-size: .92rem; margin: 0; background: #fff; border-radius: 12px; overflow: hidden; border: 1px solid var(--line); }
table.doc th, table.doc td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.doc th { background: #f8fafc; font-weight: 600; color: var(--muted); font-size: .82rem; text-transform: uppercase; letter-spacing: .04em; }
table.doc tr:last-child td { border-bottom: 0; }
.tabs { display: flex; gap: 6px; margin: 14px 0 -8px; flex-wrap: wrap; }
.tabs button { border: 1px solid var(--line); background: #fff; padding: 6px 12px; border-radius: 8px; cursor: pointer; font-family: inherit; font-size: .85rem; color: var(--text); }
.tabs button.active { background: var(--ink); color: #fff; border-color: var(--ink); }
.tabpanes pre { margin-top: 14px; }
.tabpanes pre:not(.active) { display: none; }
.callout { border-left: 4px solid var(--primary); background: var(--primary-soft); padding: 12px 16px; border-radius: 0 12px 12px 0; margin: 16px 0; font-size: .95rem; }
.callout.warn { border-color: var(--amber); background: var(--amber-soft); }
/* юридические */
.legal { max-width: 860px; margin: 0 auto; padding: 40px 0 80px; }
.legal h2 { font-size: 1.3rem; margin-top: 30px; }
.legal li { margin-bottom: 6px; }
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; }
  .phone-demo { margin: 0 auto; }
  .pd-code { position: static; margin-top: 16px; max-width: none; }
  .steps, .plans, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .docs-layout { grid-template-columns: 1fr; }
  .docs-side { position: static; max-height: none; display: flex; flex-wrap: wrap; gap: 4px; width: 100%; min-width: 0; }
  .docs-side .grp { width: 100%; flex: 0 0 100%; }
  .docs-layout { min-width: 0; }
  .docs-main { min-width: 0; }
  .tbl-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
}
@media (max-width: 680px) {
  .container { width: calc(100% - 28px); }
  .section { padding: 56px 0; }
  .hero { padding: 44px 0 40px; }
  .nav-links { display: none; position: absolute; top: 68px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 14px 20px 20px; border-bottom: 1px solid var(--line); gap: 14px; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: inline-grid; place-items: center; }
  .nav-actions .btn-outline { display: none; }
  .nav-actions { gap: 6px; }
  .nav-actions .btn-primary { padding: 8px 12px; font-size: .84rem; }
  .logo { font-size: 1.1rem; }
  .nav .container { height: 60px; gap: 8px; }
  .nav-links { top: 60px; }
  .hero-actions .btn { width: 100%; }
  pre { font-size: .78rem; }
  .steps, .plans, .grid-2, .grid-3, .grid-4, .foot-grid { grid-template-columns: 1fr; }
  .stats-row { gap: 18px; }
  .cta { padding: 40px 22px; border-radius: 20px; }
  .pay-qr { width: 230px; height: 230px; }
}