/* ==========================================================================
   Programmers Trend · pixel design system
   Shared by programmerstrend + PT ELearn. Brand blue taken from the logo.
   ========================================================================== */

:root {
  --bg: #050507;
  --bg-2: #0b0c10;
  --panel: #101218;
  --panel-2: #151821;
  --line: rgba(255, 255, 255, 0.09);
  --line-2: rgba(255, 255, 255, 0.18);
  --ink: #f3f5f9;
  --ink-2: rgba(243, 245, 249, 0.74);
  --ink-3: rgba(243, 245, 249, 0.5);
  --blue: #0433d0;          /* logo blue */
  --blue-hi: #3d6bff;       /* logo blue, lifted for dark backgrounds */
  --blue-ink: #8fa9ff;      /* readable blue text on dark */
  --blue-glow: rgba(61, 107, 255, 0.35);

  --f-pixel: "Pixelify Sans", "Silkscreen", ui-monospace, monospace;
  --f-label: "Silkscreen", "Pixelify Sans", ui-monospace, monospace;
  --f-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --nav-h: 68px;
  --gutter: clamp(16px, 4vw, 48px);
  --max: 1240px;
  --px: 4px;                /* the "pixel" unit for stepped corners */
  --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { overflow-x: clip; -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 16px); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
body.menu-open { overflow: hidden; }
main { flex: 1 0 auto; }
img, canvas, svg, iframe { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1em; }
strong { color: var(--ink); font-weight: 600; }
::selection { background: var(--blue); color: #fff; }
:focus-visible { outline: 2px dashed var(--blue-hi); outline-offset: 3px; }

.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 200;
  background: var(--blue); color: #fff; padding: 10px 14px;
  font-family: var(--f-label); font-size: 12px;
}
.skip-link:focus { top: 12px; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.pixelated { image-rendering: pixelated; image-rendering: crisp-edges; }

/* subtle dither texture used on panels */
.dither-bg {
  background-image:
    linear-gradient(180deg, rgba(5,5,7,0) 0%, var(--bg) 100%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='4' height='4' shape-rendering='crispEdges'%3E%3Crect width='1' height='1' fill='%23ffffff' fill-opacity='.06'/%3E%3Crect x='2' y='2' width='1' height='1' fill='%23ffffff' fill-opacity='.06'/%3E%3C/svg%3E");
}

/* ---------------------------------------------------------------- type */
.label {
  font-family: var(--f-label);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: inline-flex; align-items: center; gap: 10px;
}
.label .sq { width: 8px; height: 8px; background: var(--blue-hi); display: inline-block; flex: none; }
.label .blink { animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.h-display, .h1, .h2, .h3 { font-family: var(--f-pixel); font-weight: 600; letter-spacing: -0.01em; margin: 0; line-height: 1.05; }
.h-display { font-size: clamp(40px, 5.8vw, 84px); }
.h1 { font-size: clamp(36px, 5.6vw, 76px); }
.h2 { font-size: clamp(30px, 4.2vw, 56px); }
.h3 { font-size: clamp(22px, 2.2vw, 28px); line-height: 1.2; }
.lead { font-size: clamp(16px, 1.5vw, 19px); color: var(--ink-2); max-width: 62ch; }
.muted { color: var(--ink-2); }
.accent { color: var(--blue-hi); }

/* ---------------------------------------------------------------- buttons */
.btn {
  --c: var(--ink);
  position: relative;
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  min-height: 48px; padding: 0 22px;
  font-family: var(--f-label); font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--bg); background: var(--c);
  border: 0; cursor: pointer;
  clip-path: polygon(0 var(--px), var(--px) var(--px), var(--px) 0, calc(100% - var(--px)) 0, calc(100% - var(--px)) var(--px), 100% var(--px), 100% calc(100% - var(--px)), calc(100% - var(--px)) calc(100% - var(--px)), calc(100% - var(--px)) 100%, var(--px) 100%, var(--px) calc(100% - var(--px)), 0 calc(100% - var(--px)));
  transition: background .2s steps(3), color .2s steps(3), transform .2s var(--ease);
  white-space: nowrap;
}
.btn:hover { --c: var(--blue-hi); color: #fff; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .6; cursor: progress; }
.btn .arr { display: inline-block; transition: transform .25s steps(3); }
.btn:hover .arr { transform: translateX(4px); }
.btn--blue { --c: var(--blue); color: #fff; }
.btn--blue:hover { --c: var(--blue-hi); }
.btn--ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1px var(--line-2); clip-path: none; }
.btn--ghost:hover { background: rgba(255,255,255,.06); color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink-2); }
.btn--sm { min-height: 38px; padding: 0 16px; font-size: 11px; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

.link {
  font-family: var(--f-label); font-size: 12px; letter-spacing: .06em; text-transform: uppercase;
  color: var(--blue-ink); display: inline-flex; gap: 8px; align-items: center;
}
.link:hover { color: #fff; }
.link::before { content: "["; opacity: 0; transition: opacity .15s steps(1); }
.link::after { content: "] →"; }
.link:hover::before { opacity: 1; }

/* ---------------------------------------------------------------- nav */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--nav-h);
  transition: background .3s steps(4), border-color .3s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled, .nav.is-solid {
  background: rgba(5, 5, 7, 0.78);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line);
}
.nav__in { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; flex: none; }
.brand .logo-px { width: 38px; height: 38px; color: var(--blue-hi); flex: none; }
.footer .brand .logo-px { width: 76px; height: 76px; }
.brand__name { font-family: var(--f-label); font-size: 14px; letter-spacing: .04em; line-height: 1; white-space: nowrap; }
.brand__name small { display: block; font-size: 9px; color: var(--ink-3); margin-top: 5px; letter-spacing: .14em; }
.nav__links { display: flex; align-items: center; gap: 4px; margin: 0; padding: 0; list-style: none; }
.nav__links a {
  position: relative; display: block; padding: 10px 12px;
  font-family: var(--f-label); font-size: 12px; letter-spacing: .06em; text-transform: uppercase;
  color: var(--ink-2); white-space: nowrap; transition: color .15s steps(2);
}
.nav__links a::before, .nav__links a::after { position: absolute; top: 10px; opacity: 0; transition: opacity .1s steps(1), transform .2s steps(3); color: var(--blue-hi); }
.nav__links a::before { content: "["; left: 2px; transform: translateX(4px); }
.nav__links a::after { content: "]"; right: 2px; transform: translateX(-4px); }
.nav__links a:hover, .nav__links a[aria-current="page"] { color: var(--ink); }
.nav__links a:hover::before, .nav__links a:hover::after,
.nav__links a[aria-current="page"]::before, .nav__links a[aria-current="page"]::after { opacity: 1; transform: none; }
.nav__cta { flex: none; }
.nav__burger {
  display: none; width: 44px; height: 44px; padding: 0; border: 0; background: transparent; color: var(--ink); cursor: pointer;
  position: relative;
}
.nav__burger span { position: absolute; left: 11px; width: 22px; height: 3px; background: currentColor; transition: transform .25s steps(4), opacity .1s steps(1); }
.nav__burger span:nth-child(1) { top: 14px; }
.nav__burger span:nth-child(2) { top: 21px; }
.nav__burger span:nth-child(3) { top: 28px; }
.nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* mobile menu overlay */
.menu {
  position: fixed; inset: 0; z-index: 90;
  background: var(--bg);
  padding: calc(var(--nav-h) + 24px) var(--gutter) 32px;
  display: flex; flex-direction: column; justify-content: space-between;
  visibility: hidden; opacity: 0;
  transition: opacity .25s steps(5), visibility 0s .25s;
  overflow-y: auto;
}
.menu.is-open { visibility: visible; opacity: 1; transition: opacity .25s steps(5); }
.menu ol { list-style: none; margin: 0; padding: 0; counter-reset: m; }
.menu li { border-bottom: 1px solid var(--line); overflow: hidden; }
.menu li a {
  display: flex; align-items: baseline; gap: 14px; padding: 16px 0;
  font-family: var(--f-pixel); font-size: clamp(28px, 8vw, 44px); line-height: 1.1;
  transform: translateY(100%); transition: transform .45s var(--ease);
}
.menu li a::before { counter-increment: m; content: "0" counter(m); font-family: var(--f-label); font-size: 11px; color: var(--ink-3); min-width: 22px; }
.menu li a[aria-current="page"] { color: var(--blue-hi); }
.menu.is-open li a { transform: none; }
.menu.is-open li:nth-child(2) a { transition-delay: .04s; }
.menu.is-open li:nth-child(3) a { transition-delay: .08s; }
.menu.is-open li:nth-child(4) a { transition-delay: .12s; }
.menu.is-open li:nth-child(5) a { transition-delay: .16s; }
.menu.is-open li:nth-child(6) a { transition-delay: .2s; }
.menu.is-open li:nth-child(7) a { transition-delay: .24s; }
.menu__foot { margin-top: 32px; display: grid; gap: 16px; }
.menu__foot .label { color: var(--ink-3); }

/* ---------------------------------------------------------------- pixel curtain (page transitions) */
.px-curtain { position: fixed; inset: 0; z-index: 300; pointer-events: none; width: 100%; height: 100%; }
html.js .px-curtain.is-cover { pointer-events: auto; }
/* covers the first paint until site.js takes over; auto-hides if the script never runs */
html.px-enter body::before { content: ""; position: fixed; inset: 0; z-index: 299; background: var(--bg); animation: px-safety 0s 1.6s forwards; }
@keyframes px-safety { to { visibility: hidden; opacity: 0; } }

/* ---------------------------------------------------------------- hero */
.hero {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; align-items: flex-end;
  padding: calc(var(--nav-h) + 40px) 0 clamp(40px, 8vh, 96px);
  overflow: hidden; isolation: isolate;
  background: var(--bg);
}
.hero__canvas { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; image-rendering: pixelated; }
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background:
    linear-gradient(90deg, rgba(5,5,7,.92) 0%, rgba(5,5,7,.55) 45%, rgba(5,5,7,0) 70%),
    linear-gradient(0deg, var(--bg) 0%, rgba(5,5,7,0) 32%);
}
.hero__content { position: relative; max-width: 660px; }
.hero__content .label { margin-bottom: 22px; }
.hero__title { margin-bottom: 22px; }
.hero__title .accent { display: block; }
.hero__sub { min-height: 3.3em; margin-bottom: 32px; }
.hero__sub .caret { display: inline-block; width: .6em; height: 1.05em; background: var(--blue-hi); vertical-align: -0.15em; margin-left: 2px; animation: blink 1s steps(1) infinite; }
.hero__meta {
  position: absolute; right: var(--gutter); bottom: clamp(40px, 8vh, 96px);
  display: grid; gap: 8px; justify-items: end; text-align: right;
}
.hero__scroll { display: inline-flex; align-items: center; gap: 10px; }
.hero__scroll i { width: 8px; height: 8px; background: var(--ink); animation: drop 1.4s steps(4) infinite; }
@keyframes drop { 0% { transform: translateY(-6px); opacity: 0; } 30% { opacity: 1; } 100% { transform: translateY(8px); opacity: 0; } }
.hero__dots { display: flex; gap: 6px; }
.hero__dots button { width: 18px; height: 6px; border: 0; padding: 0; background: var(--line-2); cursor: pointer; }
.hero__dots button[aria-current="true"] { background: var(--blue-hi); width: 30px; }

/* compact hero for inner pages */
.page-hero { position: relative; padding: calc(var(--nav-h) + clamp(56px, 10vh, 120px)) 0 clamp(48px, 8vh, 88px); overflow: hidden; isolation: isolate; border-bottom: 1px solid var(--line); }
.page-hero__art { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover; opacity: .55; }
.page-hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, var(--bg) 0%, rgba(5,5,7,.86) 50%, rgba(5,5,7,.55) 100%), linear-gradient(0deg, var(--bg) 0%, rgba(5,5,7,0) 60%); }
.page-hero .label { margin-bottom: 20px; }
.page-hero .h1 { max-width: 16ch; margin-bottom: 20px; }
.crumbs { display: flex; flex-wrap: wrap; gap: 8px; font-family: var(--f-label); font-size: 11px; color: var(--ink-3); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 28px; }
.crumbs a:hover { color: var(--ink); }
.crumbs span[aria-hidden] { color: var(--blue-hi); }

/* ---------------------------------------------------------------- sections */
.section { padding: clamp(72px, 12vh, 140px) 0; position: relative; }
.section--line { border-top: 1px solid var(--line); }
.section--panel { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sec-head { display: grid; grid-template-columns: 1fr; gap: 20px; margin-bottom: clamp(36px, 6vh, 64px); }
.sec-head--split { grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); align-items: end; gap: 40px; }
.sec-head .h2 { max-width: 18ch; }
.sec-head .lead { margin: 0; }

.grid { display: grid; gap: 16px; }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* ---------------------------------------------------------------- cards */
.card {
  position: relative; display: flex; flex-direction: column;
  background: var(--panel); border: 1px solid var(--line);
  padding: clamp(22px, 2.4vw, 32px);
  transition: border-color .2s steps(2), background .2s steps(2), transform .35s var(--ease);
  min-width: 0;
}
a.card:hover, .card--hover:hover { border-color: var(--line-2); background: var(--panel-2); transform: translateY(-3px); }
.card::before, .card::after {
  content: ""; position: absolute; width: 10px; height: 10px; border: 2px solid var(--blue-hi);
  opacity: 0; transition: opacity .15s steps(1), transform .25s steps(3);
}
.card::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; transform: translate(4px, 4px); }
.card::after { bottom: -1px; right: -1px; border-left: 0; border-top: 0; transform: translate(-4px, -4px); }
a.card:hover::before, a.card:hover::after, .card--hover:hover::before, .card--hover:hover::after { opacity: 1; transform: none; }
.card__idx { font-family: var(--f-label); font-size: 11px; color: var(--ink-3); letter-spacing: .08em; margin-bottom: 28px; display: flex; justify-content: space-between; gap: 12px; }
.card__title { font-family: var(--f-pixel); font-size: clamp(22px, 2vw, 28px); font-weight: 600; line-height: 1.15; margin: 0 0 12px; }
.card p { color: var(--ink-2); font-size: 15px; }
.card .link { margin-top: auto; padding-top: 8px; }
.card__icon { width: 44px; height: 44px; margin-bottom: 24px; color: var(--blue-hi); }

/* product/platform card with art */
.platform { padding: 0; overflow: hidden; }
.platform__art { aspect-ratio: 16 / 9; width: 100%; object-fit: cover; border-bottom: 1px solid var(--line); transition: filter .3s steps(3); filter: saturate(.9) brightness(.9); }
.platform:hover .platform__art { filter: none; }
.platform__body { padding: clamp(22px, 2.4vw, 32px); display: flex; flex-direction: column; flex: 1; }

/* ---------------------------------------------------------------- marquee */
.marquee { overflow: hidden; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 18px 0; background: var(--bg-2); }
.marquee__track { display: flex; width: max-content; gap: 48px; animation: marquee 40s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__track span { font-family: var(--f-label); font-size: 13px; letter-spacing: .08em; color: var(--ink-2); text-transform: uppercase; display: inline-flex; align-items: center; gap: 48px; white-space: nowrap; }
.marquee__track span::after { content: ""; width: 6px; height: 6px; background: var(--blue-hi); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------------------------------------------------------------- stats */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border: 1px solid var(--line); }
.stat { padding: clamp(20px, 3vw, 36px); border-right: 1px solid var(--line); }
.stat:last-child { border-right: 0; }
.stat__num { font-family: var(--f-pixel); font-size: clamp(40px, 5vw, 68px); line-height: 1; margin-bottom: 10px; }
.stat__num .accent { font-size: .6em; }

/* ---------------------------------------------------------------- split / prose */
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 96px); align-items: center; }
.split--top { align-items: start; }
.frame { position: relative; border: 1px solid var(--line); background: var(--bg-2); }
.frame img { width: 100%; height: 100%; object-fit: cover; image-rendering: pixelated; aspect-ratio: 16 / 10; }
.frame__tag { position: absolute; left: 12px; top: 12px; background: rgba(5,5,7,.8); padding: 6px 10px; }
.frame::after { content: ""; position: absolute; right: -6px; bottom: -6px; width: 40%; height: 40%; border-right: 2px solid var(--blue-hi); border-bottom: 2px solid var(--blue-hi); pointer-events: none; }

.prose { color: var(--ink-2); max-width: 72ch; }
.prose h2, .prose h3 { font-family: var(--f-pixel); color: var(--ink); font-weight: 600; line-height: 1.2; margin: 2.2em 0 .6em; }
.prose h2 { font-size: clamp(26px, 3vw, 34px); }
.prose h3 { font-size: clamp(20px, 2.2vw, 24px); }
.prose > :first-child { margin-top: 0; }
.prose ul, .prose ol { padding-left: 0; margin: 0 0 1.2em; list-style: none; }
.prose li { position: relative; padding-left: 26px; margin-bottom: .6em; }
.prose ul > li::before { content: ""; position: absolute; left: 4px; top: .62em; width: 8px; height: 8px; background: var(--blue-hi); }
.prose ol { counter-reset: o; }
.prose ol > li { counter-increment: o; padding-left: 34px; }
.prose ol > li::before { content: counter(o, decimal-leading-zero); position: absolute; left: 0; top: .15em; font-family: var(--f-label); font-size: 11px; color: var(--blue-ink); }
.prose a:not(.btn):not(.link) { color: var(--blue-ink); text-decoration: underline; text-decoration-style: dotted; text-underline-offset: 3px; overflow-wrap: anywhere; }
.prose a:not(.btn):not(.link):hover { color: #fff; }

/* list of feature rows (values etc.) */
.rows { border-top: 1px solid var(--line); }
.row { display: grid; grid-template-columns: 80px minmax(0, 1fr) minmax(0, 1.4fr); gap: 24px; padding: 28px 0; border-bottom: 1px solid var(--line); align-items: start; }
.row__idx { font-family: var(--f-label); font-size: 12px; color: var(--blue-ink); padding-top: 6px; }
.row__title { font-family: var(--f-pixel); font-size: clamp(22px, 2.4vw, 30px); line-height: 1.15; margin: 0; }
.row p { margin: 0; color: var(--ink-2); }

/* domains (freelancers) */
.domains { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.domain ul { margin: 0; padding: 0; list-style: none; }
.domain li { position: relative; padding-left: 18px; margin-bottom: 8px; color: var(--ink-2); font-size: 14.5px; }
.domain li::before { content: ""; position: absolute; left: 0; top: .6em; width: 6px; height: 6px; background: var(--blue-hi); }

/* filter chips + search */
.toolbar { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 28px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font-family: var(--f-label); font-size: 11px; letter-spacing: .06em; text-transform: uppercase;
  padding: 9px 14px; border: 1px solid var(--line-2); background: transparent; color: var(--ink-2); cursor: pointer;
  transition: background .15s steps(2), color .15s steps(2), border-color .15s steps(2);
}
.chip:hover { color: var(--ink); border-color: var(--ink-3); }
.chip[aria-pressed="true"] { background: var(--blue); border-color: var(--blue); color: #fff; }
.search { position: relative; flex: 0 1 300px; min-width: 200px; }
.search input {
  width: 100%; height: 42px; padding: 0 14px 0 38px; font: inherit; font-size: 14px;
  color: var(--ink); background: var(--panel); border: 1px solid var(--line-2); border-radius: 0;
}
.search input:focus { outline: none; border-color: var(--blue-hi); }
.search svg { position: absolute; left: 12px; top: 13px; width: 16px; height: 16px; color: var(--ink-3); }
.empty { display: none; padding: 40px; text-align: center; border: 1px dashed var(--line-2); color: var(--ink-3); font-family: var(--f-label); font-size: 12px; }
.empty.is-on { display: block; }

/* course cards */
.course { padding: 0; overflow: hidden; }
.course__art { position: relative; aspect-ratio: 16 / 9; overflow: hidden; border-bottom: 1px solid var(--line); background: #020203; }
.course__art img { width: 100%; height: 100%; object-fit: cover; image-rendering: pixelated; transition: transform .6s var(--ease); }
.course:hover .course__art img { transform: scale(1.04); }
.course__body { padding: 22px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.course__meta { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.tag { font-family: var(--f-label); font-size: 10px; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-2); border: 1px solid var(--line-2); padding: 4px 8px; white-space: nowrap; }
.tag--blue { color: #fff; background: var(--blue); border-color: var(--blue); }
.course__foot { margin-top: auto; padding-top: 18px; border-top: 1px dashed var(--line); display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.price { font-family: var(--f-pixel); font-size: 22px; }
.course__foot .link { white-space: nowrap; }
.price small { font-family: var(--f-label); font-size: 10px; color: var(--ink-3); margin-right: 4px; }
.course[hidden] { display: none; }

/* ---------------------------------------------------------------- course detail */
.cd-hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 72px); align-items: center; }
.cd-hero .frame img { aspect-ratio: 16 / 9; }
.facts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border: 1px solid var(--line); margin-top: 32px; }
.fact { padding: 16px 18px; border-right: 1px solid var(--line); min-width: 0; }
.fact:last-child { border-right: 0; }
.fact b { display: block; font-family: var(--f-pixel); font-size: 20px; font-weight: 600; color: var(--ink); margin-top: 6px; line-height: 1.2; }
.cd-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: clamp(32px, 5vw, 72px); align-items: start; }
.cd-side { position: sticky; top: calc(var(--nav-h) + 24px); display: grid; gap: 16px; }
.enroll { background: var(--panel); border: 1px solid var(--line-2); padding: 26px; }
.enroll .price { font-size: 38px; margin: 10px 0 4px; }
.enroll ul { list-style: none; padding: 0; margin: 18px 0 22px; display: grid; gap: 10px; font-size: 14px; color: var(--ink-2); }
.enroll li { display: flex; gap: 10px; }
.enroll li::before { content: "■"; color: var(--blue-hi); font-size: 10px; line-height: 2.1; }
.enroll .btn { width: 100%; }
.toc { border: 1px solid var(--line); padding: 20px 22px; }
.toc ol { list-style: none; margin: 14px 0 0; padding: 0; display: grid; gap: 2px; }
.toc a { display: block; padding: 6px 0 6px 12px; border-left: 2px solid var(--line); color: var(--ink-3); font-size: 14px; transition: color .15s steps(2), border-color .15s steps(2); }
.toc a:hover, .toc a.is-active { color: var(--ink); border-left-color: var(--blue-hi); }

.modules { border-top: 1px solid var(--line); }
.module { border-bottom: 1px solid var(--line); }
.module summary {
  list-style: none; cursor: pointer; display: grid; grid-template-columns: 56px minmax(0, 1fr) 28px; gap: 16px; align-items: start;
  padding: 22px 0;
}
.module summary::-webkit-details-marker { display: none; }
.module__n { font-family: var(--f-label); font-size: 12px; color: var(--blue-ink); padding-top: 5px; }
.module__t { font-family: var(--f-pixel); font-size: clamp(19px, 2vw, 24px); line-height: 1.25; display: block; }
.module__d { display: block; color: var(--ink-2); font-size: 15px; margin-top: 6px; }
.module__x { width: 28px; height: 28px; position: relative; margin-top: 2px; }
.module__x::before, .module__x::after { content: ""; position: absolute; left: 7px; top: 13px; width: 14px; height: 2px; background: var(--ink); transition: transform .25s steps(3); }
.module__x::after { transform: rotate(90deg); }
.module[open] .module__x::after { transform: rotate(0deg); }
.module summary:hover .module__t { color: var(--blue-ink); }
.module__topics { margin: 0 0 26px 72px; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 28px; }
.module__topics li { position: relative; padding-left: 18px; font-size: 14.5px; color: var(--ink-2); }
.module__topics li::before { content: ""; position: absolute; left: 0; top: .62em; width: 6px; height: 6px; background: var(--blue-hi); }
.mod-tools { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }

.steps { counter-reset: s; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; list-style: none; padding: 0; margin: 0; }
.steps--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.steps li { counter-increment: s; background: var(--panel); border: 1px solid var(--line); padding: 22px; color: var(--ink-2); font-size: 15px; }
.steps li::before { content: "STEP " counter(s, decimal-leading-zero); display: block; font-family: var(--f-label); font-size: 11px; color: var(--blue-ink); margin-bottom: 14px; letter-spacing: .08em; }

.form-frame { border: 1px solid var(--line-2); background: #fff; overflow: hidden; }
.form-frame iframe { width: 100%; border: 0; height: 1700px; }
.cd-block { margin-bottom: clamp(56px, 9vh, 96px); }
.cd-block > .label { margin-bottom: 18px; }
.cd-block > .h2 { margin-bottom: 28px; font-size: clamp(28px, 3.4vw, 44px); }
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.pager a:last-child { text-align: right; align-items: flex-end; }

/* ---------------------------------------------------------------- docs (policies) */
.doc { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
.doc .toc { position: sticky; top: calc(var(--nav-h) + 24px); }
.progress { position: fixed; left: 0; top: var(--nav-h); height: 3px; width: 0; background: var(--blue-hi); z-index: 99; }

/* ---------------------------------------------------------------- contact */
.contact-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
.form { display: grid; gap: 18px; }
.form .two { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 8px; }
.field label { font-family: var(--f-label); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); }
.field input, .field textarea, .field select {
  width: 100%; font: inherit; font-size: 15px; color: var(--ink);
  background: var(--panel); border: 1px solid var(--line-2); border-radius: 0; padding: 13px 14px;
  transition: border-color .15s steps(2);
}
.field select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--ink-2) 50%), linear-gradient(135deg, var(--ink-2) 50%, transparent 50%); background-position: calc(100% - 20px) 50%, calc(100% - 14px) 50%; background-size: 6px 6px; background-repeat: no-repeat; }
.field textarea { min-height: 150px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--blue-hi); }
.form__status { font-family: var(--f-label); font-size: 12px; color: var(--blue-ink); min-height: 1.4em; }
.hp { position: absolute; left: -9999px; }
.contact-list { display: grid; gap: 0; border-top: 1px solid var(--line); margin-top: 32px; }
.contact-list a, .contact-list div { display: flex; justify-content: space-between; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.contact-list a:hover b { color: var(--blue-ink); }
.contact-list b { font-weight: 500; overflow-wrap: anywhere; text-align: right; }

/* ---------------------------------------------------------------- CTA band */
.cta { position: relative; overflow: hidden; isolation: isolate; border: 1px solid var(--line); padding: clamp(36px, 6vw, 80px); }
.cta canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; image-rendering: pixelated; }
.cta .h2 { max-width: 16ch; margin-bottom: 18px; }
.cta .lead { margin-bottom: 30px; }

/* ---------------------------------------------------------------- footer */
.footer { border-top: 1px solid var(--line); padding: clamp(56px, 9vh, 96px) 0 28px; background: var(--bg); }
.footer__top { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr)); gap: 40px; }
.footer__tag { color: var(--ink-3); margin-top: 18px; max-width: 34ch; font-size: 14px; }
.footer h4 { font-family: var(--f-label); font-weight: 400; font-size: 11px; letter-spacing: .1em; color: var(--ink-3); text-transform: uppercase; margin: 0 0 16px; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer ul a { color: var(--ink-2); font-size: 14px; transition: color .15s steps(2); overflow-wrap: anywhere; }
.footer ul a:hover { color: var(--ink); }
.footer__word {
  font-family: var(--f-pixel); font-weight: 700; line-height: .85; letter-spacing: -0.02em;
  font-size: min(168px, calc((min(100vw, var(--max)) - 2 * var(--gutter)) / (var(--chars, 9) * 0.6))); color: transparent;
  -webkit-text-stroke: 1px var(--line-2); margin: clamp(48px, 8vh, 88px) 0 24px; white-space: nowrap; overflow: hidden;
  user-select: none;
}
.footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding-top: 22px; border-top: 1px solid var(--line); font-family: var(--f-label); font-size: 11px; color: var(--ink-3); letter-spacing: .06em; text-transform: uppercase; }
.to-top { background: none; border: 0; color: var(--ink-2); font: inherit; cursor: pointer; padding: 0; }
.to-top:hover { color: var(--ink); }

/* ---------------------------------------------------------------- reveal animations */
html.js [data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity .6s steps(6), transform .7s var(--ease); }
html.js [data-reveal].is-in { opacity: 1; transform: none; }
html.js [data-reveal-group] > * { opacity: 0; transform: translateY(18px); transition: opacity .5s steps(5), transform .6s var(--ease); }
html.js [data-reveal-group].is-in > * { opacity: 1; transform: none; }
html.js [data-reveal-group].is-in > *:nth-child(2) { transition-delay: .06s; }
html.js [data-reveal-group].is-in > *:nth-child(3) { transition-delay: .12s; }
html.js [data-reveal-group].is-in > *:nth-child(4) { transition-delay: .18s; }
html.js [data-reveal-group].is-in > *:nth-child(5) { transition-delay: .24s; }
html.js [data-reveal-group].is-in > *:nth-child(6) { transition-delay: .3s; }
html.js [data-reveal-group].is-in > *:nth-child(n+7) { transition-delay: .36s; }
html.js [data-pixel-img] img { clip-path: inset(0 0 100% 0); transition: clip-path .9s steps(12); }
html.js [data-pixel-img].is-in img { clip-path: inset(0 0 0 0); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; transition-delay: 0s !important; }
  html { scroll-behavior: auto; }
  .marquee__track { animation: none; }
}

/* ---------------------------------------------------------------- responsive */
@media (max-width: 1120px) {
  .steps--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .nav__links a { padding: 10px 8px; font-size: 11px; }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .domains { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cd-layout { grid-template-columns: minmax(0, 1fr) 300px; }
}
@media (max-width: 1100px) {
  .nav__links, .nav__cta { display: none; }
  .nav__burger { display: block; }
}
@media (max-width: 960px) {
  :root { --nav-h: 62px; }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sec-head--split, .split, .contact-grid, .cd-hero { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .footer__top { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer__brand { grid-column: 1 / -1; }
  .cd-layout, .doc { grid-template-columns: 1fr; }
  .cd-side { position: static; order: -1; }
  .cd-side .toc { display: none; }
  .doc .toc { position: static; }
  .row { grid-template-columns: 56px minmax(0, 1fr); }
  .row p { grid-column: 2; }
  .hero__meta { display: none; }
  .hero::after { background: linear-gradient(0deg, var(--bg) 8%, rgba(5,5,7,.7) 50%, rgba(5,5,7,.25) 100%); }
  .steps, .steps--4 { grid-template-columns: 1fr; }
  .facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fact:nth-child(2) { border-right: 0; }
  .fact:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}
@media (max-width: 640px) {
  .grid--2, .grid--3, .grid--4, .domains { grid-template-columns: 1fr; }
  .brand__name small { display: none; }
  .brand__name { font-size: 12px; }
  .module summary { grid-template-columns: 36px minmax(0, 1fr) 28px; gap: 10px; }
  .module__topics { grid-template-columns: 1fr; margin-left: 46px; }
  .form .two { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__top > div:last-child { grid-column: 1 / -1; }
  .pager { grid-template-columns: 1fr; }
  .pager a:last-child { text-align: left; align-items: flex-start; }
  .toolbar { flex-direction: column; align-items: stretch; }
  .search { flex: 1 1 auto; }
  .btn-row .btn { flex: 1 1 auto; }
  .form-frame iframe { height: 1900px; }
  .contact-list a, .contact-list div { flex-direction: column; gap: 4px; }
  .contact-list b { text-align: left; }
}
@media (max-width: 380px) {
  .stats { grid-template-columns: 1fr; }
  .stat { border-right: 0; border-bottom: 1px solid var(--line); }
  .facts { grid-template-columns: 1fr; }
  .fact { border-right: 0 !important; border-bottom: 1px solid var(--line); }
}