/*
Theme Name: Streamlab Kafka
Theme URI: https://example.com/
Author: Project team
Description: Адаптивный WordPress-лендинг практического курса по Apache Kafka.
Version: 1.3.0
Requires at least: 6.4
Requires PHP: 7.4
Text Domain: codebase-community
*/

@font-face {
  font-family: "Unbounded";
  src: url("assets/fonts/unbounded-cyrillic.woff2") format("woff2");
  font-style: normal;
  font-weight: 400 900;
  font-display: swap;
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}

@font-face {
  font-family: "Unbounded";
  src: url("assets/fonts/unbounded-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 400 900;
  font-display: swap;
}

@font-face {
  font-family: "Onest";
  src: url("assets/fonts/onest-cyrillic.woff2") format("woff2");
  font-style: normal;
  font-weight: 400 900;
  font-display: swap;
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}

@font-face {
  font-family: "Onest";
  src: url("assets/fonts/onest-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 400 900;
  font-display: swap;
}

:root {
  --blue: #0655f5;
  --blue-hover: #003fc8;
  --ink: #090e1c;
  --muted: #596279;
  --line: #dfe2e8;
  --paper: #f3f4f6;
  --white: #fff;
  --mint: #adf0be;
  --mint-dark: #198a62;
  --amber: #ffe99a;
  --violet: #dcd4ff;
  --radius-sm: 16px;
  --radius-md: 28px;
  --radius-lg: 48px;
  --shell: 1384px;
  --shadow: 0 24px 70px rgba(9, 14, 28, .08);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 94px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Unbounded", "Onest", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
img { max-width: 100%; height: auto; }
p, h1, h2, h3 { margin-top: 0; }
ul { margin: 0; padding: 0; }

.screen-reader-text, .skip-link:not(:focus) { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link:focus { position: fixed; left: 16px; top: 16px; z-index: 1000; padding: 12px 16px; color: white; background: var(--blue); border-radius: 10px; }
.site-shell { width: min(calc(100% - 40px), var(--shell)); margin-inline: auto; }

.site-header { position: sticky; top: 0; z-index: 100; background: rgba(243,244,246,.92); border-bottom: 1px solid transparent; backdrop-filter: blur(18px); transition: border-color .2s ease, box-shadow .2s ease; }
.site-header.is-scrolled { border-color: rgba(9,14,28,.08); box-shadow: 0 8px 30px rgba(9,14,28,.05); }
.header-inner { min-height: 80px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 40px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-size: 26px; font-weight: 500; letter-spacing: -.04em; }
.brand-mark { width: 44px; height: 38px; display: grid; place-items: center; color: white; background: var(--ink); border-radius: 12px; font-family: "Onest", sans-serif; font-size: 13px; font-weight: 800; letter-spacing: -.08em; transition: transform .2s ease, background .2s ease; }
.brand:hover .brand-mark { background: var(--blue); transform: rotate(-4deg); }
.custom-logo-link { display: flex; }
.custom-logo { max-width: 190px; max-height: 48px; width: auto; }
.primary-nav { justify-self: center; }
.menu-list { display: flex; align-items: center; gap: 34px; list-style: none; }
.menu-list a, .login-link { position: relative; font-size: 12px; font-weight: 500; }
.menu-list a::after, .login-link::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -6px; height: 2px; background: var(--blue); transition: right .22s ease; }
.menu-list a:hover::after, .login-link:hover::after { right: 0; }
.header-actions { display: flex; align-items: center; gap: 22px; }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 10px; background: transparent; border: 0; cursor: pointer; }
.menu-toggle > span:not(.screen-reader-text) { display: block; width: 20px; height: 2px; margin: 4px 0; background: var(--ink); border-radius: 2px; transition: transform .2s ease, opacity .2s ease; }
.menu-toggle[aria-expanded="true"] > span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] > span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] > span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.button { display: inline-flex; align-items: center; justify-content: center; gap: 20px; color: white; background: var(--blue); border: 1px solid var(--blue); border-radius: 15px; font-size: 12px; font-weight: 600; transition: transform .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease; }
.button:hover { background: var(--blue-hover); border-color: var(--blue-hover); transform: translateY(-2px); box-shadow: 0 12px 25px rgba(6,85,245,.22); }
.button span:last-child { font-family: "Onest", sans-serif; font-size: 20px; line-height: 1; transition: transform .2s ease; }
.button:hover span:last-child { transform: translateX(4px); }
.button-small { min-height: 48px; padding: 12px 20px; }
.button-large { min-height: 58px; padding: 16px 24px; }
.button-full { width: 100%; }
.button-white { color: var(--blue); background: white; border-color: white; }
.button-white:hover { color: white; background: var(--blue); border-color: var(--blue); }

.hero-wrap { padding-top: 18px; }
.hero-card { min-height: 566px; display: grid; grid-template-columns: 56% 44%; overflow: hidden; background: white; border-radius: var(--radius-lg); }
.hero-copy { position: relative; z-index: 2; align-self: center; padding: 54px 20px 54px 48px; }
.eyebrow { margin-bottom: 17px; color: var(--blue); font-size: 11px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.hero-copy > .eyebrow { color: var(--ink); font-size: 17px; text-transform: none; }
.hero-copy h1 { max-width: 800px; margin-bottom: 24px; font-size: clamp(40px, 4.1vw, 58px); line-height: 1.18; letter-spacing: -.055em; }
.hero-lead { max-width: 650px; margin-bottom: 22px; font-size: clamp(16px, 1.65vw, 23px); line-height: 1.38; letter-spacing: -.025em; }
.hero-stat { display: flex; align-items: center; gap: 10px; margin-bottom: 28px; font-size: 13px; font-weight: 600; }
.status-dot { width: 10px; height: 10px; background: #2cbd75; border-radius: 50%; box-shadow: 0 0 0 6px rgba(44,189,117,.13); }
.hero-actions { display: flex; align-items: center; gap: 24px; }
.text-link, .inline-link { color: var(--blue); font-size: 12px; font-weight: 650; }
.text-link { padding-bottom: 4px; border-bottom: 1px solid rgba(6,85,245,.35); }
.text-link:hover, .inline-link:hover { color: var(--blue-hover); }

.hero-visual { position: relative; min-height: 566px; overflow: hidden; background: radial-gradient(circle at 46% 46%, #e5fbeb 0 22%, transparent 22.3%), linear-gradient(135deg,#f5f7fb 0%,#e4ecff 52%,#d9f7e4 100%); border-radius: 42px 0 0 42px; }
.hero-visual::before { content: ""; position: absolute; inset: -20%; background-image: linear-gradient(rgba(9,14,28,.055) 1px, transparent 1px), linear-gradient(90deg,rgba(9,14,28,.055) 1px,transparent 1px); background-size: 40px 40px; transform: rotate(-6deg); }
.stream-caption { position: absolute; top: 28px; left: 0; right: 0; z-index: 2; text-align: center; font-size: 18px; font-weight: 500; }
.producer-stack, .consumer-stack { position: absolute; top: 205px; z-index: 3; display: grid; gap: 9px; }
.producer-stack { left: 6%; }
.consumer-stack { right: 4%; }
.producer-stack span, .consumer-stack span { min-width: 112px; padding: 10px 12px; background: rgba(255,255,255,.9); border: 1px solid rgba(9,14,28,.12); border-radius: 12px; box-shadow: 0 10px 22px rgba(9,14,28,.08); font: 650 10px/1.2 "Onest",sans-serif; }
.consumer-stack span { text-align: right; }
.topic-core { position: absolute; left: 50%; top: 49%; z-index: 4; width: 225px; height: 225px; transform: translate(-50%,-50%); }
.topic-ring { position: absolute; border: 2px solid rgba(9,14,28,.22); border-radius: 50%; }
.topic-ring-one { inset: 0; }
.topic-ring-two { inset: 24px; border-style: dashed; }
.topic-center { position: absolute; inset: 53px; display: grid; place-items: center; color: white; background: var(--ink); border-radius: 50%; box-shadow: 0 22px 35px rgba(9,14,28,.23); }
.topic-center b { margin-top: 15px; font-size: 48px; line-height: 1; }
.topic-center small { margin-top: -19px; font: 650 9px/1 "Onest",sans-serif; opacity: .7; }
.partition { position: absolute; width: 32px; height: 32px; display: grid; place-items: center; color: var(--ink); background: var(--amber); border: 2px solid var(--ink); border-radius: 50%; font: normal 700 11px/1 "Onest",sans-serif; }
.p-one { left: -10px; top: 96px; }.p-two { right: 8px; top: 25px; }.p-three { right: 20px; bottom: 12px; }
.stream-line { position: absolute; top: 50%; z-index: 2; height: 2px; width: 19%; background: repeating-linear-gradient(90deg,var(--ink) 0 8px,transparent 8px 14px); }
.stream-line-left { left: 19%; }.stream-line-right { right: 18%; }
.float-badge { position: absolute; z-index: 5; display: flex; align-items: center; gap: 10px; padding: 14px 16px; background: white; border: 1px solid rgba(9,14,28,.1); border-radius: 16px; box-shadow: 0 16px 32px rgba(9,14,28,.12); }
.float-badge b { display: block; font-size: 18px; line-height: 1.1; }.float-badge small { display: block; margin-top: 4px; color: var(--muted); font: 600 9px/1 "Onest",sans-serif; }
.badge-throughput { left: 12%; bottom: 42px; }.badge-lag { right: 6%; bottom: 68px; }.badge-lag > i { width: 12px; height: 30px; background: var(--mint); border-radius: 8px; }

.section { padding-block: 82px; }
.section-heading { margin-bottom: 48px; }
.centered-heading { max-width: 1040px; margin-inline: auto; text-align: center; }
.section-heading h2 { margin-bottom: 18px; font-size: clamp(35px,4vw,50px); line-height: 1.28; letter-spacing: -.05em; }
.section-heading > p:last-child { max-width: 760px; margin: 0 auto; color: var(--muted); font-size: 14px; }
.feature-list { display: grid; gap: 92px; }
.feature-row { display: grid; grid-template-columns: minmax(0,1.1fr) minmax(360px,.9fr); align-items: center; gap: 48px; }
.feature-row.feature-reverse { grid-template-columns: minmax(360px,.9fr) minmax(0,1.1fr); }
.feature-reverse .feature-visual { order: 2; }.feature-reverse .feature-copy { order: 1; }
.feature-visual { min-height: 430px; display: grid; place-items: center; overflow: hidden; padding: 30px; background: white; border-radius: 26px; transition: transform .25s ease, box-shadow .25s ease; }
.feature-row:hover .feature-visual { transform: translateY(-5px); box-shadow: var(--shadow); }
.feature-copy { max-width: 600px; }
.feature-meta { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.feature-meta > span { display: grid; place-items: center; width: 36px; height: 36px; color: var(--ink); background: white; border: 1px solid var(--line); border-radius: 50%; font: 700 10px/1 "Onest",sans-serif; }
.feature-meta .eyebrow { margin: 0; }
.feature-copy h3 { margin-bottom: 25px; font-size: clamp(28px,2.65vw,39px); line-height: 1.35; letter-spacing: -.045em; }
.feature-copy ul { display: grid; gap: 15px; margin-bottom: 22px; list-style: none; }
.feature-copy li { position: relative; padding-left: 25px; color: #4f5972; font-size: 14px; line-height: 1.55; }
.feature-copy li::before { content: ""; position: absolute; left: 2px; top: .65em; width: 7px; height: 7px; background: var(--blue); border-radius: 50%; }
.inline-link span { display: inline-block; margin-left: 5px; transition: transform .2s ease; }.inline-link:hover span { transform: translate(3px,-3px); }

.feature-terminal { background: #eef2fb; }
.mock-window { width: 100%; max-width: 650px; overflow: hidden; background: #0e1321; border: 1px solid #242c3f; border-radius: 18px; box-shadow: 0 28px 55px rgba(9,14,28,.25); }
.window-bar { height: 47px; display: flex; align-items: center; gap: 8px; padding: 0 16px; color: #7f8ba8; background: #171d2c; font: 600 10px/1 "Onest",sans-serif; }
.window-bar i { width: 10px; height: 10px; background: #f06b61; border-radius: 50%; }.window-bar i:nth-child(2) { background: #f2bd4d; }.window-bar i:nth-child(3) { background: #57c875; }.window-bar span { margin-left: 10px; }
.code-layout { min-height: 245px; display: grid; grid-template-columns: 42px 1fr; padding: 24px 18px; color: #dce4f8; font: 500 14px/1.75 "Onest",monospace; }
.line-numbers { color: #47516a; }.code-layout pre { margin: 0; white-space: pre-wrap; font: inherit; }.violet { color: #c5a7ff; }.blue { color: #71a7ff; }.green { color: #7bdd9b; }
.mock-result { display: flex; align-items: center; gap: 10px; padding: 17px 20px; color: #b8c1d9; background: #161c2b; border-top: 1px solid #252d40; font: 600 10px/1.3 "Onest",sans-serif; }.mock-result > span { width: 20px; height: 20px; display: grid; place-items: center; color: #0c4; background: rgba(0,204,68,.12); border-radius: 50%; }.mock-result b { margin-left: auto; color: white; }

.feature-cluster { background: #eef7f0; }
.cluster-board { width: 100%; max-width: 650px; overflow: hidden; padding: 22px; background: white; border: 1px solid #dbe9df; border-radius: 20px; box-shadow: 0 24px 50px rgba(16,84,48,.12); }
.cluster-head, .metrics-head { display: flex; justify-content: space-between; align-items: center; padding-bottom: 18px; border-bottom: 1px solid #e6ebe7; font: 700 12px/1 "Onest",sans-serif; }.cluster-head b { display: flex; align-items: center; gap: 7px; color: var(--mint-dark); font-size: 10px; }.cluster-head b i { width: 8px; height: 8px; background: #2ab776; border-radius: 50%; }
.cluster-flow { min-height: 210px; display: grid; grid-template-columns: 1fr .55fr 1.15fr .55fr 1fr; align-items: center; gap: 8px; }
.flow-node { padding: 16px 9px; text-align: center; background: #edf2ff; border: 1px solid #ccdafd; border-radius: 12px; font: 700 11px/1.2 "Onest",sans-serif; }.flow-node small, .broker-group small { display: block; margin-top: 5px; color: #71809e; font-weight: 500; }.flow-consumer { background: #e9f8ee; border-color: #c5e8d0; }
.flow-arrow { position: relative; height: 40px; }.flow-arrow span { position: absolute; left: 0; right: 0; top: 19px; height: 1px; background: #919db4; }.flow-arrow i { position: absolute; top: 16px; width: 7px; height: 7px; background: var(--blue); border-radius: 50%; animation: data-flow 2.3s linear infinite; }.flow-arrow i:nth-child(2) { animation-delay: -.75s; }.flow-arrow i:nth-child(3) { animation-delay: -1.5s; }
@keyframes data-flow { from { left: 0; } to { left: calc(100% - 7px); } }
.broker-group { display: grid; gap: 6px; }.broker-group > div { padding: 11px 8px; text-align: center; background: var(--ink); color: white; border-radius: 10px; font: 750 11px/1 "Onest",sans-serif; }.broker-group > div:first-child { background: var(--blue); }.broker-group small { color: rgba(255,255,255,.62); }
.partition-strip { display: grid; grid-template-columns: repeat(3,1fr); gap: 8px; }.partition-strip span { padding: 10px; color: #46516b; background: #f3f5f8; border-radius: 9px; text-align: center; font: 650 9px/1 "Onest",sans-serif; }

.feature-metrics { background: #fff3d7; }
.metrics-board { width: 100%; max-width: 650px; padding: 22px; background: #0d121f; border: 1px solid #262d3b; border-radius: 20px; box-shadow: 0 24px 50px rgba(9,14,28,.24); }
.metrics-head { color: white; border-color: #252c3c; }.metrics-head b { color: #61da91; font-size: 9px; text-transform: uppercase; }
.metric-summary { display: grid; grid-template-columns: repeat(2,1fr); gap: 12px; margin: 18px 0; }.metric-summary > div { padding: 15px; background: #171d2b; border: 1px solid #282f40; border-radius: 12px; }.metric-summary small { display: block; color: #8790a5; font: 600 9px/1 "Onest",sans-serif; }.metric-summary b { display: inline-block; margin-top: 8px; color: white; font: 750 22px/1 "Onest",sans-serif; }.metric-summary em { margin-left: 8px; color: #5bd58b; font: normal 600 9px/1 "Onest",sans-serif; }
.chart-lines { height: 150px; display: flex; align-items: end; gap: 9px; padding: 12px 6px 0; border-bottom: 1px solid #303748; background: repeating-linear-gradient(0deg,transparent 0 36px,#202737 37px); }.chart-lines i { flex: 1; height: 30%; background: linear-gradient(#4b83ff,#234fb7); border-radius: 5px 5px 0 0; }.chart-lines i:nth-child(2) { height: 48%; }.chart-lines i:nth-child(3) { height: 40%; }.chart-lines i:nth-child(4) { height: 68%; }.chart-lines i:nth-child(5) { height: 62%; }.chart-lines i:nth-child(6) { height: 83%; }.chart-lines i:nth-child(7) { height: 75%; }.chart-lines i:nth-child(8) { height: 91%; }.chart-legend { display: flex; align-items: center; gap: 16px; padding-top: 14px; color: #8d96aa; font: 550 9px/1 "Onest",sans-serif; }.chart-legend span i { display: inline-block; width: 7px; height: 7px; margin-right: 5px; background: #4b83ff; border-radius: 50%; }.chart-legend span:nth-child(2) i { background: #f4b84f; }.chart-legend b { margin-left: auto; font-weight: 550; }

.team-section { padding-top: 58px; }
.mentor-track { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.mentor-card { position: relative; min-height: 480px; display: flex; flex-direction: column; overflow: hidden; padding: 20px; border-radius: 16px; transition: transform .25s ease, box-shadow .25s ease; }
.mentor-card:hover { transform: translateY(-7px); box-shadow: var(--shadow); }
.mentor-mint { background: #c6f5d0; }.mentor-blue { background: #d8e4ff; }.mentor-amber { background: #ffe8ae; }
.mentor-art { position: relative; flex: 1; min-height: 260px; display: grid; place-items: center; overflow: hidden; border-radius: 12px; }
.mentor-art::before { content: ""; position: absolute; width: 235px; height: 235px; border: 2px solid rgba(9,14,28,.18); border-radius: 50%; box-shadow: 0 0 0 34px rgba(255,255,255,.16),0 0 0 68px rgba(255,255,255,.1); }
.mentor-art span { position: relative; z-index: 2; display: grid; place-items: center; width: 130px; height: 130px; color: white; background: var(--ink); border-radius: 45% 55% 48% 52%; font-size: 38px; font-weight: 700; letter-spacing: -.08em; transform: rotate(-4deg); }
.mentor-blue .mentor-art span { background: var(--blue); transform: rotate(3deg); }.mentor-amber .mentor-art span { color: var(--ink); background: white; transform: rotate(-2deg); }
.mentor-art i { position: absolute; width: 13px; height: 13px; background: var(--blue); border-radius: 50%; }.mentor-art i:nth-of-type(1) { left: 12%; top: 25%; }.mentor-art i:nth-of-type(2) { right: 10%; top: 13%; background: var(--ink); }.mentor-art i:nth-of-type(3) { right: 17%; bottom: 17%; background: white; }
.mentor-plus { position: absolute; top: 15px; right: 15px; z-index: 3; width: 34px; height: 34px; display: grid; place-items: center; background: white; border-radius: 50%; font: 400 24px/1 "Onest",sans-serif; }
.mentor-copy { padding: 14px 5px 4px; }.mentor-copy p { min-height: 70px; margin-bottom: 20px; color: #3f485c; font-size: 11px; }.mentor-copy h3 { margin-bottom: 2px; font-size: 22px; }.mentor-copy > span { font-size: 11px; font-weight: 600; }

.pricing-section { padding-top: 70px; }
.price-heading { margin-bottom: 28px; }
.refund-note { max-width: 880px; display: flex; align-items: center; gap: 14px; margin: 0 auto 28px; padding: 17px 20px; color: #176442; background: #e1f8eb; border: 1px solid #bce8d0; border-radius: 14px; }
.refund-note > span { flex: 0 0 auto; width: 30px; height: 30px; display: grid; place-items: center; color: white; background: var(--mint-dark); border-radius: 50%; }.refund-note p { margin: 0; font-size: 11px; }
.pricing-grid { max-width: 950px; display: grid; grid-template-columns: repeat(2,1fr); gap: 24px; margin-inline: auto; }
.price-card { position: relative; min-height: 610px; display: flex; flex-direction: column; padding: 32px; background: white; border-radius: 38px; box-shadow: var(--shadow); }
.price-featured { border: 2px solid var(--blue); }
.popular-badge { position: absolute; top: 22px; right: 22px; padding: 8px 10px; color: white; background: var(--blue); border-radius: 9px; font-size: 8px; font-weight: 650; }
.price-graph { position: relative; width: 170px; height: 83px; margin-bottom: 16px; }.price-graph span { position: absolute; left: 12px; right: 0; bottom: 12px; height: 2px; background: var(--ink); transform: rotate(-20deg); transform-origin: left; }.price-graph span::after { content: ""; position: absolute; right: -1px; top: -5px; width: 10px; height: 10px; border-top: 2px solid var(--ink); border-right: 2px solid var(--ink); transform: rotate(20deg); }.price-graph i { position: absolute; left: 24px; bottom: 11px; width: 94px; height: 42px; border-left: 2px solid var(--ink); border-bottom: 2px solid var(--ink); transform: skewX(-24deg); }.price-graph b { position: absolute; right: 0; top: 0; font: 700 20px/1 "Onest",sans-serif; transform: rotate(-6deg); }
.price-label { margin-bottom: 10px; color: var(--blue); font-size: 9px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.price-card h3 { margin-bottom: 20px; font-size: 25px; line-height: 1.3; letter-spacing: -.04em; }
.benefit-list { display: grid; gap: 12px; margin-bottom: 26px; list-style: none; }.benefit-list li { position: relative; padding-left: 21px; color: #4f5970; font-size: 11px; line-height: 1.45; }.benefit-list li::before { content: "•"; position: absolute; left: 2px; color: var(--ink); font-size: 17px; line-height: 1; }
.price { display: flex; align-items: end; gap: 8px; margin-top: auto; margin-bottom: 14px; }.price strong { font-size: 36px; line-height: 1; letter-spacing: -.04em; }.price span { margin-bottom: 3px; color: var(--muted); font-size: 10px; }
.old-price { min-height: 20px; margin-top: -7px; margin-bottom: 10px; color: #818a9e; font-size: 9px; text-decoration: line-through; }.secondary-button { display: block; margin-top: 9px; padding: 13px; border: 1px solid var(--line); border-radius: 13px; text-align: center; font-size: 10px; font-weight: 600; transition: border-color .2s ease, background .2s ease; }.secondary-button:hover { background: #f5f7fa; border-color: #aeb5c2; }

.question-card { min-height: 565px; display: grid; grid-template-columns: 55% 45%; overflow: hidden; color: white; background: var(--ink); border-radius: 24px; }
.question-copy { align-self: center; padding: 55px 28px 55px 48px; }.eyebrow-light { color: #83a8ff; }.question-copy h2 { max-width: 720px; margin-bottom: 24px; font-size: clamp(35px,4vw,49px); line-height: 1.3; letter-spacing: -.05em; }.question-copy > p:not(.eyebrow) { max-width: 610px; margin-bottom: 34px; color: #aeb6ca; font-size: 15px; }.question-copy .button { min-width: 250px; }
.question-visual { position: relative; min-height: 565px; overflow: hidden; background: radial-gradient(circle at 60% 55%,#27324a 0 22%,transparent 22.5%),linear-gradient(145deg,#10192c,#090e1c); }.question-visual::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px); background-size: 38px 38px; }
.support-terminal { position: absolute; left: 50%; top: 50%; z-index: 3; width: 330px; height: 190px; padding: 17px; color: #dfe7fb; background: #0c111d; border: 1px solid #3b465e; border-radius: 18px; box-shadow: 0 30px 60px rgba(0,0,0,.34); transform: translate(-50%,-34%) rotate(-3deg); }.support-terminal > div { display: flex; gap: 6px; margin-bottom: 34px; }.support-terminal > div i { width: 8px; height: 8px; background: #ff6c63; border-radius: 50%; }.support-terminal > div i:nth-child(2) { background: #f6c456; }.support-terminal > div i:nth-child(3) { background: #5fd181; }.support-terminal p { margin-bottom: 12px; font: 600 13px/1.2 "Onest",monospace; }.support-terminal p span { color: #68da96; }.support-terminal .typing { color: #769eff; }
.question-bubble { position: absolute; top: 64px; left: 10%; z-index: 4; display: flex; align-items: center; gap: 5px; padding: 14px 18px; color: var(--ink); background: white; border-radius: 16px 16px 16px 4px; box-shadow: 0 18px 30px rgba(0,0,0,.2); }.question-bubble i { width: 5px; height: 5px; background: var(--blue); border-radius: 50%; }.question-bubble span { margin-left: 7px; font: 650 10px/1.3 "Onest",sans-serif; }
.question-orbit { position: absolute; right: 4%; bottom: 4%; width: 190px; height: 190px; border: 1px solid rgba(255,255,255,.15); border-radius: 50%; }.question-orbit span { position: absolute; width: 16px; height: 16px; background: var(--mint); border-radius: 50%; }.question-orbit span:nth-child(1) { left: 10px; top: 55px; }.question-orbit span:nth-child(2) { right: 24px; top: 16px; background: var(--amber); }.question-orbit span:nth-child(3) { right: 5px; bottom: 45px; background: var(--blue); }

.reviews-section { padding-top: 52px; }
.reviews-heading { max-width: 960px; }
.reviews-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.review-card { min-height: 245px; display: flex; flex-direction: column; padding: 22px; background: white; border: 1px solid var(--line); border-radius: 19px; transition: transform .2s ease, box-shadow .2s ease; }.review-card:hover { transform: translateY(-4px); box-shadow: 0 18px 35px rgba(9,14,28,.07); }
.review-top { display: flex; align-items: center; gap: 11px; margin-bottom: 18px; }.review-avatar { width: 38px; height: 38px; display: grid; place-items: center; color: white; background: var(--blue); border-radius: 50%; font-size: 11px; font-weight: 700; }.review-top h3 { margin: 0; font-size: 13px; }.review-top span { color: #7e8799; font-size: 9px; }.review-top > b { width: 22px; height: 22px; display: grid; place-items: center; margin-left: auto; color: white; background: #27a8d4; border-radius: 50%; font: 700 11px/1 "Onest",sans-serif; }.review-card > p { max-height: 87px; overflow: hidden; margin-bottom: 14px; color: #4f5970; font-size: 11px; line-height: 1.55; }.review-card.is-expanded > p { max-height: none; }.review-more { width: fit-content; margin-top: auto; padding: 0; color: var(--blue); background: none; border: 0; font-size: 9px; font-weight: 650; cursor: pointer; }

.faq-section { max-width: 1384px; padding-top: 58px; padding-bottom: 90px; }
.faq-list { display: grid; gap: 10px; }.faq-list details { overflow: hidden; background: white; border: 1px solid var(--line); border-radius: 18px; }.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 23px 26px; cursor: pointer; font-size: clamp(14px,1.3vw,18px); font-weight: 600; list-style: none; }.faq-list summary::-webkit-details-marker { display: none; }.faq-list summary span { flex: 0 0 auto; font: 300 28px/1 "Onest",sans-serif; transition: transform .2s ease; }.faq-list details[open] summary span { transform: rotate(45deg); }.faq-list details p { max-width: 980px; margin: -2px 70px 24px 26px; color: var(--muted); font-size: 12px; }

.site-footer { padding-top: 54px; color: #aeb6c9; background: #080d1a; }.footer-grid { display: grid; grid-template-columns: 1.55fr repeat(3,1fr); gap: 50px; padding-bottom: 46px; }.brand-light { margin-bottom: 20px; color: white; }.brand-light .brand-mark { color: var(--ink); background: white; }.footer-brand p { max-width: 460px; font-size: 10px; }.site-footer h3 { margin-bottom: 17px; color: white; font-size: 11px; }.site-footer ul { display: grid; gap: 9px; list-style: none; }.site-footer li,.site-footer a { font-size: 9px; }.site-footer a:hover { color: white; }.footer-bottom { display: flex; justify-content: space-between; padding-block: 18px; border-top: 1px solid #252b39; font-size: 8px; }
.content-page { min-height: 60vh; padding-block: 80px; }.content-page h1 { font-size: clamp(36px,5vw,72px); }.content-page article { max-width: 900px; margin-inline: auto; }

@media (max-width: 1180px) {
  .header-inner { grid-template-columns: auto 1fr auto; }.menu-toggle { display: block; grid-column: 1; grid-row: 1; }.brand { grid-column: 2; grid-row: 1; }.header-actions { grid-column: 3; grid-row: 1; }.primary-nav { position: fixed; inset: 80px 0 auto; display: none; padding: 18px 20px 28px; background: white; border-bottom: 1px solid var(--line); box-shadow: 0 22px 40px rgba(9,14,28,.1); }.primary-nav.is-open { display: block; }.menu-list { display: grid; gap: 0; }.menu-list a { display: block; padding: 14px; font-size: 14px; }
  .hero-card { grid-template-columns: 58% 42%; }.hero-copy { padding-left: 38px; }.producer-stack span,.consumer-stack span { min-width: 90px; padding: 9px; font-size: 9px; }.topic-core { width: 190px; height: 190px; }.topic-center { inset: 46px; }.topic-center b { font-size: 39px; }
  .feature-row,.feature-row.feature-reverse { grid-template-columns: 1fr 1fr; gap: 35px; }.feature-visual { min-height: 390px; }.mentor-copy p { min-height: 88px; }
}

@media (max-width: 920px) {
  .site-shell { width: min(calc(100% - 28px),var(--shell)); }
  .hero-card { min-height: 790px; grid-template-columns: 1fr; grid-template-rows: auto 390px; }.hero-copy { padding: 46px; text-align: center; }.hero-copy h1,.hero-lead { margin-inline: auto; }.hero-stat,.hero-actions { justify-content: center; }.hero-visual { min-height: 390px; border-radius: 36px 36px 0 0; }
  .feature-row,.feature-row.feature-reverse { grid-template-columns: 1fr; gap: 30px; }.feature-reverse .feature-visual,.feature-reverse .feature-copy { order: initial; }.feature-copy { max-width: 760px; }.feature-visual { min-height: 450px; }
  .mentor-track { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(320px,46%); grid-template-columns: none; overflow-x: auto; padding-bottom: 12px; scroll-snap-type: x mandatory; scrollbar-width: none; }.mentor-track::-webkit-scrollbar { display: none; }.mentor-card { scroll-snap-align: start; }
  .question-card { grid-template-columns: 1fr; }.question-copy { text-align: center; }.question-copy h2,.question-copy > p:not(.eyebrow) { margin-inline: auto; }.question-visual { min-height: 420px; }
  .reviews-grid { grid-template-columns: 1fr 1fr; }.review-card:last-child { grid-column: 1 / -1; }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }.footer-grid > div:last-child { grid-column: 2; }
}

@media (max-width: 640px) {
  html { scroll-padding-top: 72px; }.site-shell { width: min(calc(100% - 20px),var(--shell)); }
  .header-inner { min-height: 62px; gap: 8px; }.primary-nav { top: 62px; }.brand { gap: 8px; font-size: 20px; }.brand-mark { width: 34px; height: 32px; border-radius: 10px; font-size: 10px; }.menu-toggle { width: 34px; height: 38px; padding: 7px; }.login-link { display: none; }.button-small { min-width: 42px; min-height: 42px; padding: 8px 11px; border-radius: 13px; }.button-small span:first-child { display: none; }
  .hero-wrap { padding-top: 10px; }.hero-card { min-height: 760px; grid-template-rows: auto 360px; border-radius: 22px; }.hero-copy { padding: 27px 18px 12px; }.hero-copy > .eyebrow { margin-bottom: 12px; font-size: 10px; }.hero-copy h1 { margin-bottom: 17px; font-size: 28px; line-height: 1.1; }.hero-lead { margin-bottom: 15px; font-size: 13px; line-height: 1.35; }.hero-stat { margin-bottom: 19px; font-size: 9px; }.hero-actions { display: grid; gap: 12px; }.button-large { min-height: 52px; padding: 13px 18px; font-size: 11px; }.text-link { font-size: 10px; }.hero-visual { min-height: 360px; border-radius: 20px 20px 0 0; }.stream-caption { top: 14px; font-size: 11px; }.topic-core { width: 154px; height: 154px; }.topic-ring-two { inset: 17px; }.topic-center { inset: 38px; }.topic-center b { margin-top: 10px; font-size: 30px; }.topic-center small { margin-top: -13px; font-size: 7px; }.partition { width: 25px; height: 25px; font-size: 9px; }.producer-stack,.consumer-stack { top: 132px; gap: 6px; }.producer-stack { left: 2%; }.consumer-stack { right: 2%; }.producer-stack span,.consumer-stack span { min-width: 75px; padding: 7px; font-size: 7px; border-radius: 8px; }.stream-line { top: 49%; width: 14%; }.stream-line-left { left: 20%; }.stream-line-right { right: 20%; }.float-badge { padding: 9px 10px; border-radius: 11px; }.float-badge b { font-size: 13px; }.float-badge small { font-size: 7px; }.badge-throughput { left: 7%; bottom: 22px; }.badge-lag { right: 5%; bottom: 35px; }
  .section { padding-block: 62px; }.section-heading { margin-bottom: 32px; }.section-heading .eyebrow { margin-bottom: 10px; }.section-heading h2 { margin-bottom: 12px; font-size: 24px; line-height: 1.32; }.section-heading > p:last-child { font-size: 11px; }.eyebrow { font-size: 8px; }.feature-list { gap: 68px; }.feature-row { gap: 22px; }.feature-visual { min-height: 290px; padding: 12px; border-radius: 16px; }.feature-copy { padding-inline: 2px; }.feature-meta { margin-bottom: 12px; }.feature-meta > span { width: 30px; height: 30px; font-size: 8px; }.feature-copy h3 { margin-bottom: 19px; font-size: 21px; line-height: 1.36; }.feature-copy ul { gap: 11px; }.feature-copy li { padding-left: 20px; font-size: 11px; }.inline-link { font-size: 10px; }
  .mock-window { border-radius: 12px; }.window-bar { height: 36px; padding-inline: 11px; font-size: 8px; }.window-bar i { width: 7px; height: 7px; }.code-layout { min-height: 184px; grid-template-columns: 27px 1fr; padding: 15px 10px; font-size: 10px; }.mock-result { padding: 12px; font-size: 8px; }.mock-result b { display: none; }
  .cluster-board,.metrics-board { padding: 13px; border-radius: 13px; }.cluster-head,.metrics-head { padding-bottom: 12px; font-size: 9px; }.cluster-flow { min-height: 170px; gap: 4px; }.flow-node { padding: 10px 3px; font-size: 8px; }.flow-node small,.broker-group small { font-size: 7px; }.broker-group > div { padding: 8px 3px; font-size: 8px; }.partition-strip { gap: 4px; }.partition-strip span { padding: 7px 3px; font-size: 7px; }.metric-summary { gap: 7px; margin: 12px 0; }.metric-summary > div { padding: 11px; }.metric-summary b { font-size: 16px; }.chart-lines { height: 105px; gap: 5px; }.chart-legend { font-size: 7px; }
  .team-section { padding-top: 44px; }.mentor-track { grid-auto-columns: 82%; gap: 10px; margin-right: -10px; }.mentor-card { min-height: 430px; padding: 12px; border-radius: 14px; }.mentor-art { min-height: 260px; }.mentor-art::before { width: 210px; height: 210px; }.mentor-art span { width: 112px; height: 112px; font-size: 32px; }.mentor-copy p { min-height: 64px; margin-bottom: 13px; font-size: 9px; }.mentor-copy h3 { font-size: 20px; }.mentor-copy > span { font-size: 9px; }
  .pricing-section { padding-top: 50px; }.refund-note { align-items: flex-start; padding: 14px; border-radius: 13px; }.refund-note p { font-size: 9px; }.pricing-grid { grid-template-columns: 1fr; gap: 18px; }.price-card { min-height: 560px; padding: 25px 20px; border-radius: 28px; }.price-graph { margin-bottom: 8px; }.price-card h3 { font-size: 22px; }.benefit-list li { font-size: 10px; }.price strong { font-size: 33px; }.popular-badge { top: 18px; right: 16px; font-size: 7px; }
  .question-card { min-height: 720px; grid-template-rows: auto 360px; border-radius: 18px; }.question-copy { padding: 28px 20px 18px; }.question-copy h2 { margin-bottom: 17px; font-size: 25px; line-height: 1.3; }.question-copy > p:not(.eyebrow) { margin-bottom: 21px; font-size: 11px; }.question-copy .button { min-width: 0; width: 100%; }.question-visual { min-height: 360px; }.support-terminal { width: 255px; height: 150px; }.support-terminal > div { margin-bottom: 23px; }.support-terminal p { font-size: 10px; }.question-bubble { top: 28px; left: 5%; padding: 10px 12px; }.question-bubble span { font-size: 8px; }.question-orbit { width: 130px; height: 130px; }
  .reviews-section { padding-top: 45px; }.reviews-grid { grid-template-columns: 1fr; gap: 9px; }.review-card,.review-card:last-child { grid-column: auto; min-height: 205px; padding: 18px; border-radius: 15px; }.review-card > p { font-size: 10px; }.review-top h3 { font-size: 12px; }
  .faq-section { padding-top: 46px; padding-bottom: 70px; }.faq-list summary { padding: 18px 15px; font-size: 12px; }.faq-list details p { margin: -2px 42px 19px 15px; font-size: 10px; }
  .site-footer { padding-top: 38px; }.footer-grid { grid-template-columns: 1fr 1fr; gap: 28px 16px; padding-bottom: 32px; }.footer-brand { grid-column: 1 / -1; }.footer-grid > div:last-child { grid-column: auto; }.footer-bottom { flex-direction: column; gap: 8px; }
}

@media (hover: none) { .mentor-card:hover,.feature-row:hover .feature-visual,.review-card:hover,.button:hover { transform: none; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *,*::before,*::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; } }

/* Course brief expansion: structure and motion inspired by modern course guides. */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity .7s cubic-bezier(.2,.65,.3,1), transform .7s cubic-bezier(.2,.65,.3,1); transition-delay: var(--reveal-delay, 0s); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.course-hero .hero-copy h1 { max-width: 720px; }
.hero-facts { display: flex; gap: 12px; margin: 0 0 28px; }
.hero-facts > div { min-width: 190px; padding: 14px 16px; background: #f3f5f9; border: 1px solid var(--line); border-radius: 14px; }
.hero-facts span, .hero-facts strong { display: block; }
.hero-facts span { margin-bottom: 4px; color: var(--muted); font: 650 9px/1.2 "Onest",sans-serif; text-transform: uppercase; letter-spacing: .08em; }
.hero-facts strong { font-size: 13px; }

.intro-section { padding-top: 105px; }
.intro-grid { display: grid; grid-template-columns: minmax(0,1fr) minmax(460px,.88fr); align-items: center; gap: 80px; }
.intro-copy h2, .fit-heading h2, .program-head h2, .video-copy h2, .author-copy h2 { margin-bottom: 25px; font-size: clamp(36px,4.2vw,56px); line-height: 1.23; letter-spacing: -.055em; }
.intro-copy > p:not(.eyebrow) { max-width: 750px; margin-bottom: 18px; color: var(--muted); font-size: 15px; }
.intro-result { display: grid; grid-template-columns: 42px 1fr; gap: 15px; margin-top: 30px; padding: 20px; background: white; border: 1px solid var(--line); border-radius: 18px; }
.intro-result > span { width: 42px; height: 42px; display: grid; place-items: center; color: white; background: var(--blue); border-radius: 12px; font: 700 22px/1 "Onest",sans-serif; }
.intro-result p { margin: 0; color: #434d65; font-size: 12px; }
.knowledge-collage { position: relative; min-height: 530px; overflow: hidden; background: linear-gradient(145deg,#eaf0ff,#ecfaef); border-radius: 34px; }
.knowledge-collage::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(9,14,28,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(9,14,28,.05) 1px,transparent 1px); background-size: 38px 38px; }
.knowledge-card { position: absolute; z-index: 2; width: 220px; padding: 18px; background: rgba(255,255,255,.94); border: 1px solid rgba(9,14,28,.1); border-radius: 16px; box-shadow: 0 18px 40px rgba(9,14,28,.12); animation: card-float 5s ease-in-out infinite; }
.knowledge-card span,.knowledge-card b,.knowledge-card i { display: block; }.knowledge-card span { margin-bottom: 15px; color: var(--blue); font: 700 8px/1 "Onest",sans-serif; letter-spacing: .1em; }.knowledge-card b { margin-bottom: 7px; font-size: 14px; }.knowledge-card i { color: #7a8498; font: normal 600 9px/1.2 "Onest",sans-serif; }
.kc-article { left: 7%; top: 10%; transform: rotate(-4deg); }.kc-video { right: 6%; top: 22%; transform: rotate(5deg); animation-delay: -1.6s; }.kc-video > span { width: 28px; height: 28px; display: grid; place-items: center; color: white; background: var(--blue); border-radius: 50%; }.kc-note { left: 13%; bottom: 9%; transform: rotate(3deg); animation-delay: -3.2s; }
.knowledge-core { position: absolute; left: 50%; top: 54%; z-index: 3; width: 170px; height: 170px; display: grid; place-items: center; color: white; background: var(--ink); border-radius: 50%; box-shadow: 0 0 0 24px rgba(6,85,245,.1),0 24px 50px rgba(9,14,28,.22); transform: translate(-50%,-50%); }.knowledge-core b { margin-top: 25px; font-size: 54px; line-height: 1; }.knowledge-core span { align-self: start; margin-top: -17px; font: 600 8px/1.2 "Onest",sans-serif; text-align: center; opacity: .75; }
@keyframes card-float { 0%,100% { margin-top: 0; } 50% { margin-top: -10px; } }

.audience-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.audience-card { position: relative; min-height: 210px; display: grid; grid-template-columns: 62px 1fr; align-items: start; gap: 20px; overflow: hidden; padding: 28px; border-radius: 24px; transition: transform .25s ease, box-shadow .25s ease; }
.audience-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }.audience-mint { background: #d7f6df; }.audience-blue { background: #dce7ff; }.audience-amber { background: #ffebbc; }.audience-violet { background: #e7e1ff; }
.audience-index { width: 52px; height: 52px; display: grid; place-items: center; background: rgba(255,255,255,.78); border-radius: 50%; font-size: 11px; font-weight: 700; }
.audience-card h3 { margin-bottom: 12px; font-size: 22px; }.audience-card p { max-width: 530px; margin: 0; color: #465066; font-size: 12px; }.audience-card > i { position: absolute; right: 22px; bottom: 18px; font: normal 400 32px/1 "Onest",sans-serif; opacity: .55; transition: transform .2s ease; }.audience-card:hover > i { transform: translate(4px,-4px); }

.fit-section { color: white; background: var(--ink); }
.fit-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 80px; align-items: start; }
.fit-heading { position: sticky; top: 120px; min-height: 410px; overflow: hidden; padding: 40px; background: #121a2b; border: 1px solid #283146; border-radius: 28px; }
.fit-heading h2 { position: relative; z-index: 2; }.fit-orbit { position: absolute; right: -55px; bottom: -80px; width: 280px; height: 280px; border: 1px solid rgba(255,255,255,.16); border-radius: 50%; }.fit-orbit::before { content: ""; position: absolute; inset: 48px; border: 1px dashed rgba(255,255,255,.16); border-radius: 50%; animation: orbit-spin 18s linear infinite; }.fit-orbit span { position: absolute; width: 18px; height: 18px; background: var(--blue); border-radius: 50%; }.fit-orbit span:nth-child(1) { left: 25px; top: 72px; }.fit-orbit span:nth-child(2) { right: 38px; top: 28px; background: var(--mint); }.fit-orbit span:nth-child(3) { left: 120px; bottom: 8px; background: var(--amber); }
@keyframes orbit-spin { to { transform: rotate(360deg); } }
.fit-list { margin: 0; list-style: none; }.fit-list li { display: grid; grid-template-columns: 52px 1fr; gap: 20px; padding: 29px 0; border-bottom: 1px solid #323a4d; }.fit-list li:first-child { border-top: 1px solid #323a4d; }.fit-list span { color: #7598f3; font-size: 11px; font-weight: 700; }.fit-list p { margin: 0; font-size: clamp(16px,1.55vw,21px); line-height: 1.5; }

.learning-list { display: grid; gap: 18px; }
.learning-step { min-height: 320px; display: grid; grid-template-columns: 80px minmax(0,1fr) minmax(330px,.72fr); overflow: hidden; background: white; border: 1px solid var(--line); border-radius: 28px; }
.learning-number { padding: 34px 0 0 30px; color: var(--blue); font-size: 12px; font-weight: 700; }
.learning-copy { align-self: center; padding: 36px 25px; }.learning-copy > span { display: inline-block; margin-bottom: 14px; padding: 8px 10px; color: var(--blue); background: #edf2ff; border-radius: 8px; font-size: 8px; font-weight: 700; text-transform: uppercase; }.learning-copy h3 { margin-bottom: 16px; font-size: clamp(23px,2.5vw,34px); line-height: 1.28; }.learning-copy p { max-width: 650px; margin: 0; color: var(--muted); font-size: 12px; }
.learning-visual { position: relative; min-height: 320px; overflow: hidden; background: #dfe8ff; border-radius: 26px 0 0 26px; }.learning-visual::before { content: ""; position: absolute; left: 50%; top: 50%; width: 170px; height: 170px; border: 2px solid rgba(9,14,28,.2); border-radius: 50%; transform: translate(-50%,-50%); box-shadow: 0 0 0 34px rgba(255,255,255,.2),0 0 0 68px rgba(255,255,255,.12); }.learning-visual b { position: absolute; left: 50%; top: 50%; width: 100px; height: 100px; display: grid; place-items: center; color: white; background: var(--ink); border-radius: 34%; font-size: 28px; transform: translate(-50%,-50%) rotate(-6deg); }.learning-visual i { position: absolute; z-index: 2; width: 13px; height: 13px; background: var(--blue); border-radius: 50%; }.learning-visual i:nth-child(1) { left: 18%; top: 20%; }.learning-visual i:nth-child(2) { right: 17%; top: 14%; background: white; }.learning-visual i:nth-child(3) { right: 12%; bottom: 18%; background: var(--ink); }.learning-visual--2 { background: #d9f5df; }.learning-visual--3 { background: #ffebbc; }.learning-visual--4 { background: #e6e0ff; }

.program-section { background: #e9efff; }
.program-head { display: grid; grid-template-columns: 1fr .7fr; align-items: end; gap: 70px; margin-bottom: 42px; }.program-head h2 { margin: 0; }.program-head > p { margin: 0 0 8px; color: var(--muted); font-size: 12px; }
.program-list { display: grid; gap: 10px; }
.program-item { overflow: hidden; background: white; border: 1px solid #d7e0f7; border-radius: 20px; transition: box-shadow .25s ease, border-color .25s ease; }.program-item[open] { border-color: #aabff6; box-shadow: 0 18px 45px rgba(38,75,156,.08); }.program-item summary { display: grid; grid-template-columns: 54px 1fr 44px; align-items: center; gap: 20px; padding: 23px 26px; cursor: pointer; list-style: none; }.program-item summary::-webkit-details-marker { display: none; }.program-number { width: 44px; height: 44px; display: grid; place-items: center; color: var(--blue); background: #edf2ff; border-radius: 50%; font-size: 10px; font-weight: 700; }.program-item h3 { margin: 0; font-size: clamp(15px,1.55vw,21px); line-height: 1.38; }.program-item summary > i { width: 38px; height: 38px; display: grid; place-items: center; background: #f0f3f8; border-radius: 50%; font: normal 300 25px/1 "Onest",sans-serif; transition: transform .25s ease, background .25s ease; }.program-item[open] summary > i { color: white; background: var(--blue); transform: rotate(45deg); }
.program-body { display: grid; grid-template-columns: 150px .82fr 1.18fr; gap: 30px; padding: 0 26px 30px 100px; animation: details-in .35s ease both; }.program-label { color: var(--blue); font-size: 8px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }.program-result { margin: 0; font-size: 13px; font-weight: 600; }.program-body ul { display: grid; gap: 8px; list-style: none; }.program-body li { position: relative; padding-left: 19px; color: var(--muted); font-size: 10px; }.program-body li::before { content: "•"; position: absolute; left: 2px; color: var(--blue); font-size: 16px; line-height: 1; }
@keyframes details-in { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }

.tariffs-section { padding-bottom: 100px; }
.tariffs-grid { max-width: 1060px; display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-inline: auto; }
.tariff-card { position: relative; min-height: 650px; display: flex; flex-direction: column; padding: 38px; background: white; border: 1px solid var(--line); border-radius: 36px; box-shadow: var(--shadow); }.tariff-card--featured { color: white; background: var(--ink); border-color: var(--ink); }.tariff-head { padding-bottom: 28px; border-bottom: 1px solid var(--line); }.tariff-card--featured .tariff-head { border-color: #343b4b; }.tariff-head p { margin-bottom: 8px; color: var(--blue); font-size: 9px; font-weight: 700; text-transform: uppercase; }.tariff-head h3 { margin-bottom: 12px; font-size: 34px; }.tariff-head > span { display: block; min-height: 48px; color: var(--muted); font-size: 11px; }.tariff-card--featured .tariff-head > span { color: #adb5c9; }.tariff-card ul { display: grid; gap: 15px; margin: 28px 0; list-style: none; }.tariff-card li { display: grid; grid-template-columns: 22px 1fr; gap: 10px; color: #4b566e; font-size: 11px; }.tariff-card--featured li { color: #c4cada; }.tariff-card li i { width: 19px; height: 19px; display: grid; place-items: center; color: var(--blue); background: #e9f0ff; border-radius: 50%; font: normal 700 10px/1 "Onest",sans-serif; }.tariff-card .button { margin-top: auto; }.tariff-card--featured .button { color: var(--blue); background: white; border-color: white; }

.video-section { display: grid; grid-template-columns: .72fr 1.28fr; align-items: center; gap: 70px; }.video-copy > p:not(.eyebrow) { color: var(--muted); font-size: 13px; }.video-copy > span { display: inline-block; padding: 9px 11px; color: #7b8497; background: #e8ebf0; border-radius: 8px; font-size: 8px; font-weight: 650; }.video-placeholder { position: relative; min-height: 480px; display: grid; place-items: center; overflow: hidden; color: white; background: var(--ink); border-radius: 30px; }.video-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px); background-size: 42px 42px; }.video-placeholder button { position: relative; z-index: 2; width: 92px; height: 92px; display: grid; place-items: center; color: white; background: var(--blue); border: 0; border-radius: 50%; box-shadow: 0 0 0 22px rgba(6,85,245,.15); }.video-placeholder button i { margin-left: 5px; font: normal 30px/1 "Onest",sans-serif; }.video-placeholder p { position: absolute; left: 28px; bottom: 22px; z-index: 2; margin: 0; font-size: 11px; }

.feedback-section { overflow: hidden; padding-top: 52px; }.feedback-canvas { position: relative; min-height: 610px; overflow: hidden; background: linear-gradient(145deg,#dfe8ff,#dff5e6); border-radius: 36px; }.feedback-canvas::before { content: ""; position: absolute; inset: 0; background-image: radial-gradient(rgba(9,14,28,.12) 1px,transparent 1px); background-size: 24px 24px; }.telegram-shot { position: absolute; z-index: 2; width: 290px; padding: 20px; background: white; border: 1px solid rgba(9,14,28,.1); border-radius: 17px; box-shadow: 0 20px 45px rgba(9,14,28,.13); }.telegram-shot span { display: block; margin-bottom: 12px; color: #2aa7dc; font: 700 9px/1 "Onest",sans-serif; text-transform: uppercase; }.telegram-shot p { margin: 0; color: #5f687b; font-size: 10px; }.shot-1 { left: 6%; top: 12%; transform: rotate(-4deg); }.shot-2 { right: 6%; top: 10%; transform: rotate(5deg); }.shot-3 { left: 11%; bottom: 11%; transform: rotate(3deg); }.shot-4 { right: 10%; bottom: 10%; transform: rotate(-4deg); }.feedback-center { position: absolute; left: 50%; top: 50%; z-index: 3; width: 190px; height: 190px; display: grid; place-items: center; color: white; background: var(--ink); border-radius: 50%; box-shadow: 0 0 0 28px rgba(255,255,255,.25); transform: translate(-50%,-50%); }.feedback-center b { margin-top: 28px; font-size: 34px; line-height: 1; }.feedback-center span { align-self: start; margin-top: -24px; font: 600 9px/1.3 "Onest",sans-serif; text-align: center; opacity: .72; }

.author-card { display: grid; grid-template-columns: .86fr 1.14fr; overflow: hidden; background: white; border-radius: 34px; }.author-portrait { position: relative; min-height: 610px; display: grid; place-items: center; overflow: hidden; background: linear-gradient(145deg,#dce7ff,#d9f7e1); }.author-portrait::before { content: ""; position: absolute; width: 360px; height: 360px; border: 2px solid rgba(9,14,28,.18); border-radius: 50%; box-shadow: 0 0 0 55px rgba(255,255,255,.2),0 0 0 110px rgba(255,255,255,.12); }.author-placeholder { position: relative; z-index: 2; width: 240px; height: 300px; display: grid; place-items: center; color: white; background: var(--ink); border-radius: 48% 48% 32% 32%; transform: rotate(-2deg); }.author-placeholder span { margin-top: 70px; font-size: 56px; font-weight: 700; }.author-placeholder small { align-self: start; margin-top: -35px; color: #aab3c5; font: 600 9px/1 "Onest",sans-serif; }.author-portrait > i { position: absolute; z-index: 3; width: 17px; height: 17px; background: var(--blue); border-radius: 50%; }.author-portrait > i:nth-of-type(1) { left: 12%; top: 20%; }.author-portrait > i:nth-of-type(2) { right: 15%; top: 13%; background: var(--amber); }.author-portrait > i:nth-of-type(3) { right: 10%; bottom: 15%; background: var(--mint-dark); }.author-copy { align-self: center; padding: 60px; }.author-copy ul { display: grid; gap: 13px; margin: 0 0 26px; list-style: none; }.author-copy li { position: relative; padding-left: 24px; color: #465066; font-size: 12px; }.author-copy li::before { content: ""; position: absolute; left: 2px; top: .65em; width: 7px; height: 7px; background: var(--blue); border-radius: 50%; }.author-copy > p:not(.eyebrow) { max-width: 640px; color: var(--muted); font-size: 13px; }

.contact-card { margin-bottom: 10px; }
.sticky-course-nav { position: fixed; left: 50%; bottom: 18px; z-index: 90; display: flex; align-items: center; gap: 8px; padding: 8px; background: rgba(255,255,255,.92); border: 1px solid rgba(9,14,28,.1); border-radius: 18px; box-shadow: 0 20px 50px rgba(9,14,28,.2); backdrop-filter: blur(16px); opacity: 0; pointer-events: none; transform: translate(-50%,24px); transition: opacity .3s ease,transform .3s ease; }.sticky-course-nav.is-visible { opacity: 1; pointer-events: auto; transform: translate(-50%,0); }.sticky-course-nav > a:first-child { padding: 12px 20px; font-size: 10px; font-weight: 650; }.sticky-course-nav .button { min-height: 44px; padding: 10px 18px; border-radius: 12px; font-size: 10px; }

@media (max-width: 920px) {
  .intro-grid,.fit-grid,.video-section { grid-template-columns: 1fr; gap: 42px; }.knowledge-collage { min-height: 480px; }.fit-heading { position: relative; top: auto; min-height: 330px; }.learning-step { grid-template-columns: 70px 1fr; }.learning-visual { grid-column: 1 / -1; min-height: 280px; border-radius: 0; }.program-head { grid-template-columns: 1fr; gap: 18px; }.program-body { grid-template-columns: 1fr; gap: 14px; padding-left: 100px; }.tariffs-grid { grid-template-columns: 1fr; max-width: 680px; }.author-card { grid-template-columns: 1fr; }.author-portrait { min-height: 500px; }
}

@media (max-width: 640px) {
  body { padding-bottom: 78px; }.course-hero { min-height: 735px; }.course-hero .hero-copy h1 { font-size: 34px; }.hero-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }.hero-facts > div { min-width: 0; padding: 10px; }.hero-facts strong { font-size: 10px; }.intro-section { padding-top: 68px; }.intro-copy h2,.fit-heading h2,.program-head h2,.video-copy h2,.author-copy h2 { font-size: 25px; }.intro-copy > p:not(.eyebrow) { font-size: 11px; }.intro-result { grid-template-columns: 34px 1fr; padding: 14px; }.intro-result > span { width: 34px; height: 34px; }.intro-result p { font-size: 9px; }.knowledge-collage { min-height: 390px; border-radius: 22px; }.knowledge-card { width: 155px; padding: 12px; }.knowledge-card span { margin-bottom: 9px; }.knowledge-card b { font-size: 10px; }.knowledge-card i { font-size: 7px; }.knowledge-core { width: 125px; height: 125px; }.knowledge-core b { font-size: 38px; }.audience-grid { grid-template-columns: 1fr; gap: 9px; }.audience-card { min-height: 170px; grid-template-columns: 44px 1fr; gap: 12px; padding: 19px; border-radius: 18px; }.audience-index { width: 40px; height: 40px; font-size: 9px; }.audience-card h3 { font-size: 17px; }.audience-card p { font-size: 10px; }.audience-card > i { font-size: 24px; }.fit-grid { gap: 26px; }.fit-heading { min-height: 270px; padding: 25px; border-radius: 20px; }.fit-list li { grid-template-columns: 38px 1fr; gap: 10px; padding: 20px 0; }.fit-list p { font-size: 13px; }.learning-list { gap: 10px; }.learning-step { min-height: 0; grid-template-columns: 45px 1fr; border-radius: 19px; }.learning-number { padding: 24px 0 0 18px; font-size: 9px; }.learning-copy { padding: 24px 16px 25px 5px; }.learning-copy h3 { font-size: 19px; }.learning-copy p { font-size: 10px; }.learning-visual { min-height: 220px; }.program-section { padding-block: 60px; }.program-item { border-radius: 14px; }.program-item summary { grid-template-columns: 35px 1fr 30px; gap: 9px; padding: 16px 13px; }.program-number { width: 32px; height: 32px; font-size: 8px; }.program-item h3 { font-size: 12px; }.program-item summary > i { width: 28px; height: 28px; font-size: 20px; }.program-body { gap: 9px; padding: 2px 16px 19px 57px; }.program-result { font-size: 10px; }.program-body li { font-size: 9px; }.tariff-card { min-height: 570px; padding: 25px 20px; border-radius: 27px; }.tariff-head h3 { font-size: 27px; }.tariff-card li { font-size: 10px; }.video-placeholder { min-height: 290px; border-radius: 20px; }.video-placeholder button { width: 70px; height: 70px; }.feedback-canvas { min-height: 520px; border-radius: 23px; }.telegram-shot { width: 185px; padding: 13px; }.telegram-shot p { font-size: 8px; }.shot-1 { left: 3%; }.shot-2 { right: 2%; top: 23%; }.shot-3 { left: 3%; bottom: 19%; }.shot-4 { right: 3%; bottom: 5%; }.feedback-center { width: 110px; height: 110px; }.feedback-center b { font-size: 23px; }.feedback-center span { font-size: 7px; }.author-portrait { min-height: 390px; }.author-portrait::before { width: 250px; height: 250px; }.author-placeholder { width: 180px; height: 230px; }.author-copy { padding: 28px 20px; }.author-copy li,.author-copy > p:not(.eyebrow) { font-size: 10px; }.sticky-course-nav { left: 10px; right: 10px; bottom: 9px; justify-content: space-between; padding: 6px; transform: translateY(24px); }.sticky-course-nav.is-visible { transform: translateY(0); }.sticky-course-nav > a:first-child { flex: 1; text-align: center; }.sticky-course-nav .button { flex: 1.2; padding-inline: 10px; }.sticky-course-nav .button span { display: none; }
}

@media (hover: none) { .audience-card:hover { transform: none; } }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; }.knowledge-card,.fit-orbit::before { animation: none; } }

/* Reading sizes shared by the landing page's text blocks. */
.video-player {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--ink);
  border-radius: 30px;
}
.video-player iframe { display: block; width: 100%; height: 100%; border: 0; }
.video-copy .inline-link { font-size: 14px; }

@media (max-width: 640px) {
  .video-player { border-radius: 20px; }
}

:root {
  --copy-size: 18px;
  --copy-small: 14px;
}

.intro-copy > p:not(.eyebrow),
.intro-result p,
.audience-card p,
.learning-copy p,
.program-head > p,
.program-result,
.program-body li,
.tariff-head > span,
.tariff-card li,
.video-copy > p:not(.eyebrow),
.author-copy li,
.author-copy > p:not(.eyebrow),
.faq-list details p,
.question-copy > p:not(.eyebrow),
.section-heading > p:last-child:not(.eyebrow) {
  font-size: var(--copy-size);
  line-height: 1.65;
}

.fit-list p { font-size: clamp(18px, 1.7vw, 24px); line-height: 1.6; }
.hero-facts strong { font-size: 16px; }
.hero-facts span,
.learning-copy > span,
.program-label,
.tariff-head p,
.popular-badge,
.video-copy > span,
.telegram-shot p,
.author-copy .inline-link,
.footer-brand p,
.site-footer li,
.site-footer li a { font-size: var(--copy-small); line-height: 1.6; }
.site-footer h3 { font-size: 16px; }
.footer-bottom { font-size: 12px; gap: 16px; flex-wrap: wrap; }
.audience-card { padding-bottom: 48px; }
.tariff-head > span { min-height: 0; }
.program-body { grid-template-columns: 140px minmax(0, .82fr) minmax(0, 1.18fr); }

@media (max-width: 920px) {
  .program-body { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 640px) {
  :root { --copy-size: 16px; --copy-small: 13px; }
  .hero-facts strong { font-size: 13px; }
  .faq-list summary { font-size: 16px; }
  .audience-card { padding-bottom: 42px; }
  .program-body { padding-left: 16px; }
}

.eyebrow,
.hero-copy > .eyebrow,
.audience-index,
.learning-number,
.program-number {
  font-size: var(--copy-size);
  line-height: 1.45;
}

.tariff-card li.tariff-feature--highlight {
  padding: 14px;
  color: white;
  background: rgba(131,168,255,.12);
  border: 1px solid rgba(131,168,255,.3);
  border-radius: 14px;
}
.tariff-card .tariff-feature--highlight i { color: var(--ink); background: var(--mint); }
.tariff-price { margin-top: auto; padding-top: 26px; border-top: 1px solid var(--line); }
.tariff-card--featured .tariff-price { border-color: #343b4b; }
.tariff-amount { margin-bottom: 10px; font-size: clamp(30px, 3vw, 42px); font-weight: 700; line-height: 1.2; letter-spacing: -.04em; }
.tariff-amount > span { font-size: 18px; font-weight: 500; letter-spacing: 0; white-space: nowrap; }
.tariff-installment { margin-bottom: 0; color: var(--muted); font-size: 14px; line-height: 1.6; }
.tariff-card--featured .tariff-installment { color: #c4cada; }
.tariff-availability { display: inline-block; margin: 14px 0 0; padding: 7px 12px; color: var(--ink); background: var(--mint); border-radius: 9px; font-size: 14px; font-weight: 650; }
.tariff-card > .button { margin-top: 24px; }
.footer-trademark { padding-block: 0 26px; }
.footer-trademark p { max-width: 1060px; margin: 0; color: #aeb6c9; font: 400 13px/1.65 "Onest", sans-serif; }

.hero-visual--image {
  display: grid;
  place-items: center;
  min-width: 0;
  padding: 16px;
  background: transparent;
}
.hero-visual--image::before { content: none; }
.hero-diagram { display: block; width: 100%; height: auto; object-fit: contain; }

@media (max-width: 920px) {
  .course-hero { min-height: 0; grid-template-rows: auto auto; }
  .course-hero .hero-facts { justify-content: center; text-align: center; }
  .hero-visual--image { min-height: 0; padding: 24px 16px; }
}

@media (max-width: 640px) {
  .hero-visual--image { padding: 16px 8px; }
}

/* Independent reasons use bullets; learning cards keep a clear reading order. */
.fit-list { padding-inline-start: 24px; list-style: disc outside; }
.fit-list li { display: list-item; padding: 29px 0 29px 10px; }
.fit-list li::marker { color: #7598f3; font-size: 24px; }

.learning-section .learning-step {
  min-height: 0;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 28px;
  padding: 36px;
}
.learning-section .learning-number {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  padding: 0;
  background: #edf2ff;
  border-radius: 16px;
}
.learning-section .learning-copy {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  grid-template-rows: auto 1fr;
  align-self: stretch;
  gap: 14px 40px;
  padding: 0;
}
.learning-section .learning-copy > span { justify-self: start; margin: 0; }
.learning-section .learning-copy h3 { grid-column: 1; margin: 0; }
.learning-section .learning-copy p {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  max-width: none;
}

body.registration-open { overflow: hidden; }
.registration-dialog {
  width: min(400px, calc(100% - 24px));
  max-height: calc(100vh - 32px);
  max-height: calc(100dvh - 32px);
  margin: auto;
  padding: 24px;
  overflow: auto;
  color: var(--ink);
  background: white;
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 24px 80px rgba(9,14,28,.25);
}
.registration-dialog::backdrop { background: rgba(9,14,28,.65); backdrop-filter: blur(5px); }
.registration-heading { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.registration-heading h2 { margin: 0; font-size: 20px; line-height: 1.4; letter-spacing: -.03em; }
.registration-close {
  flex: 0 0 40px;
  height: 40px;
  display: grid;
  place-items: center;
  margin-left: auto;
  padding: 0;
  color: var(--ink);
  background: var(--paper);
  border: 0;
  border-radius: 12px;
  cursor: pointer;
  font: 400 28px/1 "Onest", sans-serif;
  transition: color .2s ease, background .2s ease;
}
.registration-close:hover { color: white; background: var(--blue); }
.registration-close:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
.registration-tariff { margin-bottom: 20px; color: var(--muted); font-size: 14px; }
.registration-frame {
  display: block;
  width: 100%;
  max-width: 320px;
  height: 418px;
  margin-inline: auto;
  border: 0;
  border-radius: 4px;
  box-shadow: 0 8px 16px rgba(0,0,0,.08);
}

@media (max-width: 400px) {
  .registration-dialog { padding: 20px 12px; border-radius: 20px; }
  .registration-heading h2 { font-size: 18px; }
}

@media (max-width: 920px) {
  .learning-section .learning-step { gap: 24px; padding: 30px; }
  .learning-section .learning-copy { display: block; }
  .learning-section .learning-copy > span { margin-bottom: 14px; }
  .learning-section .learning-copy h3 { margin-bottom: 16px; }
}

@media (max-width: 640px) {
  .fit-list { padding-inline-start: 20px; }
  .fit-list li { padding: 20px 0 20px 6px; }
  .learning-section .learning-step { grid-template-columns: minmax(0, 1fr); gap: 18px; padding: 24px 20px; }
  .learning-section .learning-number { width: 44px; height: 44px; border-radius: 13px; }
}