/* LOCKED — не менять без согласования с владельцем:
     palette tokens below (backgrounds, surfaces, text, accents, CTA) were approved 2026-09-22.
     Hardcoded rgba() copies of these colors elsewhere in the file must stay in sync with them. */
  :root {
    --c-bg: #0f1115;
    --c-void: #13161b;
    --c-accent: #3a82ff;
    --c-blue: #0055ff;
    --c-purple: #7a6bff;
    --c-white: #e7e9ed;
    --c-text: #cdd1d8;
    --c-muted: #828996;
    --c-text-2: #9ba1ab;
    --c-card: #171a20;
    --c-card-2: #1d2129;
    --c-border: rgba(255,255,255,0.08);
    --c-divider: rgba(255,255,255,0.07);
    --c-btn: #0055ff;
    --c-btn-hover: #004ae6;
    --c-btn-text: #ffffff;
    --glow: 0 8px 24px rgba(0,85,255,0.3);

    /* layout */
    --container: 1280px;
    --gutter: 60px;
    --nav-h: 72px;
    --pad-x: max(var(--gutter), calc((100% - var(--container)) / 2));

    /* type scale: 9 sizes */
    --fs-12: 0.75rem;
    --fs-14: 0.875rem;
    --fs-16: 1rem;
    --fs-18: 1.125rem;
    --fs-24: 1.5rem;
    --fs-40: 2.5rem;
    --fs-h2: clamp(2rem, 3vw, 2.75rem);
    --fs-display: clamp(2.25rem, 4vw, 3.5rem);
    --fs-hero: clamp(2.8rem, 7.5vw, 7.5rem);

    /* spacing scale */
    --sp-8: 8px;
    --sp-12: 12px;
    --sp-16: 16px;
    --sp-24: 24px;
    --sp-32: 32px;
    --sp-48: 48px;
  }

  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    background: var(--c-bg);
    color: var(--c-white);
    font-family: 'Syne', sans-serif;
    overflow-x: hidden;
  }

  /* ─── CURSOR ─── */
  body, body * { cursor: none !important; }
  #cursor {
    position: fixed; top: 0; left: 0; pointer-events: none; z-index: 9999;
    width: 12px; height: 12px;
    background: var(--c-accent);
    border-radius: 50%;
    transform: translate(-100px, -100px);
    will-change: transform;
    transition: width 0.2s, height 0.2s, background 0.25s, box-shadow 0.25s;
    box-shadow: 0 0 10px rgba(58,130,255,0.6), 0 0 22px rgba(58,130,255,0.25);
    mix-blend-mode: screen;
  }
  #cursor-ring {
    position: fixed; top: 0; left: 0; pointer-events: none; z-index: 9998;
    width: 40px; height: 40px;
    border: 1px solid rgba(58,130,255,0.35);
    border-radius: 50%;
    transform: translate(-100px, -100px);
    will-change: transform;
    transition: width 0.3s, height 0.3s, border-color 0.25s;
  }
  #cursor.on-cyan {
    background: #ffffff;
    box-shadow: 0 0 10px rgba(255,255,255,0.6), 0 0 22px rgba(255,255,255,0.25);
    mix-blend-mode: normal;
  }
  #cursor-ring.on-cyan {
    border-color: rgba(255,255,255,0.85);
  }
  body:hover #cursor { opacity: 1; }

  /* ─── CANVAS ─── */
  /* LOCKED — не менять без согласования с владельцем: opacity 0.4 (as in v3) */
  #neural-canvas {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    pointer-events: none; z-index: 0; opacity: 0.4;
  }

  /* ─── NAV ─── */
  nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 var(--pad-x);
    backdrop-filter: blur(12px);
    background: rgba(15,17,21,0.72);
    border-bottom: 1px solid var(--c-divider);
    height: var(--nav-h);
  }
  .nav-logo {
    font-family: 'Unbounded', sans-serif;
    font-weight: 900; font-size: 1.3rem;
    color: var(--c-accent);
    letter-spacing: 0.15em;
    text-decoration: none;
  }
  .nav-logo span { color: var(--c-white); }
  .nav-links { display: flex; gap: 36px; }
  .nav-links a {
    font-size: var(--fs-12); letter-spacing: 0.12em; text-transform: uppercase;
    color: var(--c-text-2); text-decoration: none;
    transition: color 0.3s;
  }
  .nav-links a:hover { color: var(--c-accent); }
  .nav-cta {
    font-family: 'Space Mono', monospace;
    font-size: var(--fs-12); padding: 10px 24px;
    border: 1px solid var(--c-accent); color: var(--c-accent);
    background: transparent; cursor: pointer;
    letter-spacing: 0.1em; text-transform: uppercase;
    transition: all 0.3s; text-decoration: none;
  }
  .nav-cta:hover {
    background: var(--c-btn); color: var(--c-btn-text); border-color: var(--c-btn);
    box-shadow: var(--glow);
  }

  section { position: relative; z-index: 1; }

  /* ─── HERO ─── */
  #hero {
    height: 100vh; min-height: 720px;
    display: flex; flex-direction: column;
    justify-content: center; align-items: flex-start;
    padding: calc(var(--nav-h) + var(--sp-32)) var(--pad-x) var(--sp-48);
    overflow: hidden;
  }
  .hero-h1 {
    font-family: 'Unbounded', sans-serif;
    font-weight: 900; font-size: var(--fs-hero);
    line-height: 0.95; letter-spacing: -0.02em;
    max-width: 1000px;
    opacity: 0; animation: fadeUp 0.9s 0.2s forwards;
  }
  /* LOCKED — не менять без согласования с владельцем: hero title gradient stops */
  .hero-h1 .line-accent {
    display: block;
    background: linear-gradient(90deg, #4fb0ff 0%, #2f7bff 50%, #3d4dff 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  .hero-body {
    display: grid; grid-template-columns: minmax(0, 600px) auto;
    justify-content: space-between;
    column-gap: 72px; align-items: stretch;
    width: 100%;
    margin-top: 36px;
  }
  .hero-sub {
    font-size: var(--fs-18); color: var(--c-text);
    line-height: 1.6;
    opacity: 0; animation: fadeUp 0.9s 0.4s forwards;
  }
  .hero-sub-lead { margin-bottom: 12px; }
  .hero-points { list-style: none; display: flex; flex-direction: column; gap: 8px; }
  .hero-points li { position: relative; padding-left: 24px; }
  .hero-points li::before {
    content: ''; position: absolute; left: 1px; top: 0.6em;
    width: 6.3px; height: 6.3px;
    background: var(--c-accent);
    transform: rotate(45deg);
  }
  /* hero copy stays one calm grey: no white bold inside it */
  .hero-sub strong { color: inherit; font-weight: 400; }
  .hero-link {
    font-family: 'Unbounded', sans-serif; font-weight: 700;
    font-size: var(--fs-14); letter-spacing: 0.06em;
    color: var(--c-white); text-decoration: none;
    transition: color 0.3s;
  }
  .hero-link:hover { color: var(--c-accent); }
  .hero-actions {
    display: flex; align-items: center; gap: 24px; margin-top: 40px;
    opacity: 0; animation: fadeUp 0.9s 0.6s forwards;
    flex-wrap: wrap;
  }
  .btn-primary {
    font-family: 'Unbounded', sans-serif;
    font-weight: 700; font-size: var(--fs-14); letter-spacing: 0.08em;
    padding: 18px 44px; background: var(--c-btn); color: var(--c-btn-text);
    border: none; cursor: pointer; text-decoration: none;
    position: relative; overflow: hidden;
    transition: box-shadow 0.3s, transform 0.2s, background 0.3s;
    display: inline-block;
    clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  }
  .btn-primary::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.18) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform 0.5s;
  }
  .btn-primary:hover { background: var(--c-btn-hover); box-shadow: var(--glow); transform: translateY(-2px); }
  .btn-primary:hover::after { transform: translateX(100%); }
  .btn-ghost {
    font-family: 'Space Mono', monospace;
    font-size: var(--fs-14); letter-spacing: 0.1em; color: var(--c-text-2);
    text-decoration: none; display: flex; align-items: center; gap: 10px;
    transition: color 0.3s;
  }
  .btn-ghost:hover { color: var(--c-white); }
  .btn-ghost .arr { transition: transform 0.3s; }
  .btn-ghost:hover .arr { transform: translateX(4px); }

  .hero-stats {
    display: flex; flex-direction: column; justify-content: space-between; gap: 20px;
    padding-left: 40px;
    border-left: 1px solid var(--c-border);
    opacity: 0; animation: fadeUp 0.9s 0.8s forwards;
  }
  .stat { text-align: left; }
  .stat-num {
    font-family: 'Unbounded', sans-serif;
    font-size: var(--fs-40); font-weight: 900;
    color: var(--c-accent);
    line-height: 1;
  }
  .stat-label {
    font-size: var(--fs-12); color: var(--c-text-2);
    letter-spacing: 0.1em; text-transform: uppercase;
  }

  /* ─── COMMON SECTION ─── */
  .section-head { margin-bottom: var(--sp-48); }
  .section-head .section-h2, .section-head .section-lead { margin-bottom: 0; }
  .section-label {
    font-family: 'Space Mono', monospace;
    font-size: var(--fs-12); letter-spacing: 0.3em; text-transform: uppercase;
    color: var(--c-accent); margin-bottom: var(--sp-16);
    display: flex; align-items: center; gap: 12px;
  }
  .section-label::after { content: ''; flex: 1; height: 1px; background: var(--c-border); max-width: 80px; }
  .section-h2 {
    font-family: 'Unbounded', sans-serif;
    font-weight: 800; font-size: var(--fs-h2);
    line-height: 1.1; margin-bottom: var(--sp-24);
  }
  .section-h2 em { font-style: normal; color: var(--c-accent); }
  .section-lead {
    font-size: var(--fs-18); color: var(--c-text); max-width: 560px;
    line-height: 1.55; margin-bottom: var(--sp-48);
  }
  .section-lead strong { color: var(--c-white); font-weight: 600; }

  /* one section = one screen: content is centred in the area below the nav */
  .slide {
    min-height: 100vh; min-height: 100svh;
    display: flex; flex-direction: column;
    justify-content: center;
    padding: calc(var(--nav-h) + var(--sp-32)) var(--pad-x) var(--sp-32);
  }
  .slide > div { width: 100%; }

  /* ─── FOR WHOM ─── */
  #for-whom {
    background: var(--c-void);
    position: relative;
  }
  #for-whom::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0;
    height: 1px; background: linear-gradient(90deg, transparent, var(--c-accent), transparent);
  }
  .audience-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-16);
    margin-bottom: var(--sp-16);
  }
  .aud-card {
    border: 1px solid var(--c-border);
    padding: var(--sp-32);
    opacity: 0; transform: translateY(20px);
    transition: border-color 0.3s, background 0.3s, opacity 0.6s, transform 0.6s;
  }
  .aud-card.visible { opacity: 1; transform: translateY(0); }
  .aud-card:hover { border-color: rgba(58,130,255,0.3); background: var(--c-card-2); }
  .aud-icon {
    font-family: 'Space Mono', monospace;
    font-size: var(--fs-12); letter-spacing: 0.15em;
    color: var(--c-accent); margin-bottom: var(--sp-16);
  }
  .aud-title {
    font-family: 'Unbounded', sans-serif;
    font-weight: 700; font-size: var(--fs-18);
    margin-bottom: var(--sp-8); line-height: 1.3;
  }
  .aud-desc { font-size: var(--fs-16); color: var(--c-text); line-height: 1.55; }

  .aud-fomo {
    padding: var(--sp-24) var(--sp-32);
    border: 1px dashed rgba(58,130,255,0.3);
    background: var(--c-card);
    font-size: var(--fs-16); line-height: 1.6;
    color: var(--c-white);
    display: flex; align-items: center; gap: var(--sp-16);
  }
  .aud-fomo::before {
    content: '↓';
    font-family: 'Unbounded', sans-serif;
    font-size: var(--fs-24); color: var(--c-accent);
  }
  .aud-fomo strong { color: var(--c-accent); font-weight: 600; }

  /* ─── BENEFITS ─── */
  .benefits-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px;
    position: relative;
  }
  .benefit-card {
    background: rgba(58,130,255,0.04);
    border: 1px solid var(--c-border);
    padding: var(--sp-32);
    position: relative; overflow: hidden;
    min-height: 200px;
    display: flex; flex-direction: column; justify-content: flex-end;
    z-index: 1;
    opacity: 0; transform: translateY(30px);
    transition: opacity 0.6s, transform 0.6s;
  }
  .benefit-card.visible { opacity: 1; transform: translateY(0); }
  .benefit-icon {
    width: 48px; height: 48px;
    color: var(--c-accent);
    margin-bottom: var(--sp-24);
    transition: filter 0.6s, transform 0.6s;
  }
  .benefit-card:hover .benefit-icon {
    transform: scale(1.06);
  }
  .benefit-icon svg { width: 100%; height: 100%; }
  .benefit-title {
    font-family: 'Unbounded', sans-serif;
    font-weight: 700; font-size: var(--fs-18);
    line-height: 1.3;
  }
  .benefit-title .sep { color: rgba(58,130,255,0.5); margin: 0 8px; font-weight: 400; }
  .benefit-num {
    position: absolute; top: var(--sp-24); right: var(--sp-24);
    font-family: 'Space Mono', monospace;
    font-size: var(--fs-12); color: var(--c-muted); letter-spacing: 0.12em;
    transition: color 0.6s;
  }
  .benefit-card:hover .benefit-num { color: var(--c-accent); }

  /* ─── INSTRUCTOR ─── */
  #instructor {
    background: var(--c-void);
    position: relative;
    overflow: hidden;
  }
  #instructor::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0;
    height: 1px; background: linear-gradient(90deg, transparent, var(--c-blue), var(--c-accent), transparent);
  }

  .author-card {
    display: grid; grid-template-columns: minmax(300px, 0.8fr) 1.2fr;
    border: 1px solid var(--c-border);
    background: rgba(58,130,255,0.04);
    position: relative;
  }
  .author-card::before {
    content: ''; position: absolute; top: -1px; left: 0; right: 0; height: 1px; z-index: 6;
    background: linear-gradient(90deg, var(--c-accent), rgba(0,85,255,0.6) 45%, transparent 80%);
  }

  /* photo: fills the full height of the card */
  .author-photo {
    position: relative; margin: 0;
    min-height: 420px;
    background: linear-gradient(135deg, #1d2129, #13161b);
    border-right: 1px solid var(--c-border);
    overflow: hidden;
    opacity: 0;
    transition: opacity 0.9s;
  }
  .author-photo.visible { opacity: 1; }
  .author-photo .photo-fallback {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    font-family: 'Unbounded', sans-serif;
    font-weight: 900; font-size: var(--fs-display);
    color: rgba(58,130,255,0.3);
  }
  .author-photo img {
    position: absolute; inset: 0; z-index: 1;
    width: 100%; height: 100%;
    object-fit: cover; object-position: 38% 0;
    filter: contrast(1.05) saturate(0.9);
  }
  .author-photo::before {
    content: ''; position: absolute; inset: 0; z-index: 2; pointer-events: none;
    background:
      linear-gradient(180deg, transparent 45%, rgba(15,17,21,0.92) 100%),
      linear-gradient(135deg, rgba(58,130,255,0.08), rgba(0,85,255,0.06), transparent);
  }
  .author-photo::after {
    content: ''; position: absolute; inset: 0; z-index: 3; pointer-events: none;
    background: linear-gradient(transparent 50%, rgba(58,130,255,0.03) 50%);
    background-size: 100% 4px;
    opacity: 0.6;
  }
  .baikin-photo-corners {
    position: absolute; inset: var(--sp-16); pointer-events: none; z-index: 4;
  }
  .baikin-photo-corners::before,
  .baikin-photo-corners::after {
    content: ''; position: absolute;
    width: 26px; height: 26px;
    border-color: var(--c-accent);
    border-style: solid;
  }
  .baikin-photo-corners::before { top: 0; left: 0; border-width: 1px 0 0 1px; }
  .baikin-photo-corners::after { display: none; }
  .author-caption {
    position: absolute; left: var(--sp-32); right: var(--sp-32); bottom: var(--sp-32); z-index: 5;
    padding-left: var(--sp-16);
    border-left: 2px solid var(--c-accent);
    font-family: 'Unbounded', sans-serif; font-weight: 700;
    font-size: var(--fs-18); line-height: 1.3;
    color: var(--c-white);
    text-shadow: 0 2px 16px rgba(15,17,21,0.9);
  }
  .author-caption span {
    display: block; margin-top: 6px;
    font-family: 'Space Mono', monospace; font-weight: 400;
    font-size: var(--fs-12); letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--c-text-2);
  }
  .baikin-photo-tag {
    position: absolute; bottom: 24px; left: 24px;
    font-family: 'Space Mono', monospace;
    font-size: var(--fs-12); letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--c-accent); z-index: 5;
    background: rgba(15,17,21,0.75); padding: 6px 12px;
    border: 1px solid rgba(58,130,255,0.3);
  }

  /* text side */
  .author-body {
    padding: var(--sp-32) var(--sp-48);
    display: flex; flex-direction: column;
    opacity: 0; transform: translateX(20px);
    transition: opacity 0.8s 0.2s, transform 0.8s 0.2s;
  }
  .author-body.visible { opacity: 1; transform: translateX(0); }
  .author-tags { display: flex; flex-wrap: wrap; gap: var(--sp-8); margin-bottom: var(--sp-16); }
  .author-tags span {
    font-family: 'Space Mono', monospace;
    font-size: var(--fs-12); letter-spacing: 0.06em;
    color: var(--c-accent);
    border: 1px solid rgba(58,130,255,0.3);
    background: rgba(58,130,255,0.05);
    padding: 6px 12px;
  }
  .author-name {
    font-family: 'Unbounded', sans-serif;
    font-weight: 900; font-size: var(--fs-40);
    line-height: 1.05; letter-spacing: -0.01em;
    margin-bottom: var(--sp-24);
  }
  .author-facts { display: flex; flex-direction: column; }
  .author-facts .author-fact { grid-template-columns: 1fr; }  /* labels removed: text only */
  .author-facts .author-fact + .author-fact { border-top-color: transparent; }  /* no rules between paragraphs; spacing unchanged */
  .author-fact {
    display: grid; grid-template-columns: 112px 1fr; gap: var(--sp-24);
    padding: var(--sp-16) 0;
    border-top: 1px solid var(--c-border);
  }
  .af-title {
    font-family: 'Unbounded', sans-serif;
    font-weight: 700; font-size: var(--fs-14);
    color: var(--c-white);
    padding-top: 4px;
  }
  /* one flat grey for the copy: no white bold inserts */
  .af-text { font-size: var(--fs-16); line-height: 1.6; color: var(--c-text-2); max-width: 620px; }
  .af-text strong { color: inherit; font-weight: 400; }
  .baikin-creds {
    display: grid; grid-template-columns: repeat(4, auto); gap: var(--sp-16) var(--sp-24);
    padding-top: var(--sp-16);
    border-top: 1px solid var(--c-border);
  }
  .cred-item { display: flex; align-items: center; gap: var(--sp-8); }
  .cred-num {
    font-family: 'Unbounded', sans-serif;
    font-weight: 900; font-size: var(--fs-24);
    color: var(--c-accent);
    line-height: 1;
  }
  .cred-text {
    font-size: var(--fs-12); color: var(--c-text-2); line-height: 1.4;
  }
  .cred-text strong { color: var(--c-white); font-weight: 600; }


  /* sub-heading inside a screen */
  .sub-h3 em { font-style: normal; color: var(--c-accent); }
  .sub-h3 {
    font-family: 'Unbounded', sans-serif;
    font-weight: 800; font-size: var(--fs-24);
    line-height: 1.2;
    margin-bottom: var(--sp-16);
  }

  /* ─── TEAM ─── */
  .team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-16); }
  .expert-card {
    position: relative;
    display: flex; flex-direction: column; align-items: flex-start;
    min-height: clamp(360px, 48vh, 480px);
    border: 1px solid var(--c-border);
    background: var(--c-card);
    padding: var(--sp-32);
    opacity: 0; transform: translateY(20px);
    transition: border-color 0.3s, opacity 0.6s, transform 0.6s;
  }
  .expert-card:nth-child(2) { transition-delay: 0.1s; }
  .expert-card:nth-child(3) { transition-delay: 0.2s; }
  .expert-card.visible { opacity: 1; transform: translateY(0); }
  .expert-card:hover { border-color: rgba(58,130,255,0.35); }
  .expert-card::before {
    content: ''; position: absolute; top: -1px; left: 0; width: 45%; height: 1px;
    background: var(--c-accent);
  }
  .expert-photo {
    width: 112px; height: 112px; border-radius: 50%; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    font-family: 'Unbounded', sans-serif; font-weight: 800; font-size: var(--fs-40);
    color: #ffffff;
    margin-bottom: var(--sp-24);
    box-shadow: 0 0 0 4px var(--c-bg), 0 0 0 5px rgba(58,130,255,0.35);
  }
  .expert-name {
    font-family: 'Unbounded', sans-serif; font-weight: 700; font-size: var(--fs-24);
    line-height: 1.2; margin-bottom: var(--sp-12);
  }
  .expert-role {
    font-family: 'Space Mono', monospace; font-size: var(--fs-12); letter-spacing: 0.06em;
    color: var(--c-accent);
    border: 1px solid rgba(58,130,255,0.3); background: rgba(58,130,255,0.05);
    padding: 4px var(--sp-8);
    margin-bottom: var(--sp-24);
  }
  .expert-achievements {
    list-style: none; align-self: stretch; margin-top: auto;
    display: flex; flex-direction: column; gap: var(--sp-8);
    padding-top: var(--sp-16); border-top: 1px solid var(--c-border);
  }
  .expert-achievements li {
    display: flex; gap: var(--sp-8);
    font-size: var(--fs-16); line-height: 1.45; color: var(--c-text);
  }
  .expert-achievements li::before { content: '✓'; color: var(--c-accent); font-weight: 700; flex-shrink: 0; }


  /* ─── TEAM: people who built the course ─── */
  .team-lead { margin-top: var(--sp-16); margin-bottom: var(--sp-48); max-width: 760px; }
  #team .section-head .team-lead { margin-top: var(--sp-16); }
  .team-people { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--sp-12); }
  .person {
    display: flex; flex-direction: column;
    background: rgba(58,130,255,0.04); border: 1px solid var(--c-border);
    opacity: 0; transform: translateY(20px);
    transition: border-color 0.3s, opacity 0.6s, transform 0.6s;
  }
  .person.visible { opacity: 1; transform: translateY(0); }
  .person-photo {
    /* clip-path + own layer: without them the scaled photo leaves a 1px light seam
       along the bottom edge, because the square height lands on a fractional pixel */
    position: relative; aspect-ratio: 1 / 1; overflow: hidden;
    clip-path: inset(0 0 0 0); transform: translateZ(0); backface-visibility: hidden;
    box-shadow: inset 0 0 0 1px var(--c-border);
    transition: box-shadow 0.35s;
    display: grid; place-items: center;
    background: linear-gradient(160deg, rgba(58,130,255,0.10), var(--c-card));
  }
  .person-photo .ini {
    font-family: 'Unbounded', sans-serif; font-weight: 900; font-size: var(--fs-40);
    color: rgba(58,130,255,0.35);
  }
  .person-photo img {
    position: absolute; inset: 0; width: 100%; height: 100%;
    object-fit: cover; object-position: 50% 20%;
    filter: grayscale(0.3) contrast(1.05);
    transition: filter 0.5s, transform 0.7s;
    will-change: transform;
  }
  .person:hover .person-photo { box-shadow: inset 0 0 0 1px rgba(58,130,255,0.5); }
  .person:hover .person-photo img { filter: grayscale(0) contrast(1.05); transform: scale(1.03); }
  .person-photo::after {
    content: ''; position: absolute; inset: 0; pointer-events: none;
    background: linear-gradient(180deg, transparent 55%, var(--c-bg) 100%);
  }
  .person-body { padding: var(--sp-16); display: flex; flex-direction: column; flex: 1; }
  .person-role {
    font-family: 'Space Mono', monospace; font-size: var(--fs-12);
    letter-spacing: 0.08em; text-transform: uppercase; line-height: 1.4; color: var(--c-accent);
  }
  .person-name {
    font-family: 'Unbounded', sans-serif; font-weight: 700; font-size: var(--fs-16);
    line-height: 1.25; color: var(--c-white); margin: var(--sp-8) 0 var(--sp-12);
  }
  .person-do { font-size: var(--fs-14); line-height: 1.5; color: var(--c-text-2); }
  .person-cred {
    margin-top: auto; padding-top: var(--sp-12); border-top: 1px solid var(--c-border);
    font-size: var(--fs-12); line-height: 1.45; color: var(--c-text-2);
    display: flex; gap: var(--sp-8);
  }
  .person-cred::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--c-accent); flex-shrink: 0; margin-top: 7px; }

  /* one interaction for every translucent block: lift, accent border, soft glow */
  .benefit-card, .stage, .testi-card, .person, .offer {
    transition: border-color 0.35s, background 0.35s, box-shadow 0.35s, transform 0.35s, opacity 0.6s;
  }
  /* every block behaves the same: a card lights up only while the pointer is on it */
  .benefit-card:hover, .stage:hover, .testi-card:hover, .person:hover {
    border-color: rgba(58,130,255,0.5);
    background: rgba(58,130,255,0.07);
    box-shadow: 0 0 28px rgba(58,130,255,0.16);
    transform: translateY(-3px);
  }
  .offer:hover {
    border-color: rgba(58,130,255,0.5);
    box-shadow: 0 24px 60px rgba(0,0,0,0.35), 0 0 34px rgba(58,130,255,0.14);
  }

  /* ─── MODULES ─── */
  .modules-layout {
    display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: var(--sp-48); align-items: stretch;
  }
  .module-list {
    display: flex; flex-direction: column;
    border-top: 1px solid var(--c-border);
  }
  .module-item {
    position: relative;
    display: grid; grid-template-columns: 40px minmax(0, 1fr) auto;
    align-items: center; column-gap: 16px;
    padding: var(--sp-12) var(--sp-16) var(--sp-12) var(--sp-24);
    border-bottom: 1px solid var(--c-border);
    cursor: pointer; outline: none;
    opacity: 0; transform: translateX(-20px);
    transition: background 0.35s, opacity 0.6s, transform 0.6s;
  }
  .module-item::before {
    content: ''; position: absolute; left: 0; top: -1px; bottom: -1px; width: 2px;
    background: var(--c-accent);
    transform: scaleY(0); transition: transform 0.35s;
  }
  .module-item.visible { opacity: 1; transform: translateX(0); }
  .module-item:hover { background: rgba(58,130,255,0.03); }
  .module-item.is-active { background: rgba(58,130,255,0.07); }
  .module-item.is-active::before { transform: scaleY(1); }
  .module-item:focus-visible { box-shadow: inset 0 0 0 1px var(--c-accent); }
  .module-num {
    font-family: 'Space Mono', monospace;
    font-size: var(--fs-12); color: var(--c-muted); letter-spacing: 0.08em;
    transition: color 0.35s;
  }
  .module-item.is-active .module-num { color: var(--c-accent); }
  .module-body { min-width: 0; }
  .module-name {
    font-family: 'Syne', sans-serif;
    font-weight: 700; font-size: var(--fs-16); line-height: 1.3;
    color: var(--c-white);
  }
  .module-value { display: none; font-size: var(--fs-14); color: var(--c-text-2); line-height: 1.4; }
  .module-tag {
    font-family: 'Space Mono', monospace;
    font-size: var(--fs-12); letter-spacing: 0.1em;
    padding: 3px var(--sp-8); border: 1px solid rgba(58,130,255,0.3);
    color: var(--c-accent); text-transform: uppercase;
    white-space: nowrap;
  }

  /* detail panel: shows the module that is hovered / selected */
  .module-visual {
    position: relative;
    display: flex; flex-direction: column;
    border: 1px solid var(--c-border);
    background: linear-gradient(160deg, rgba(58,130,255,0.05), transparent 55%), var(--c-card);
    padding: var(--sp-32);
    opacity: 0; transform: translateX(20px);
    transition: opacity 0.8s 0.3s, transform 0.8s 0.3s;
  }
  .module-visual.visible { opacity: 1; transform: translateX(0); }
  .module-visual::before {
    content: ''; position: absolute; top: -1px; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, var(--c-accent), rgba(0,85,255,0.6) 50%, transparent);
  }
  .mv-head { display: flex; align-items: center; gap: var(--sp-24); margin-bottom: var(--sp-16); }
  .mv-num {
    font-family: 'Unbounded', sans-serif;
    font-weight: 900; font-size: var(--fs-40); line-height: 1;
    color: var(--c-accent);
    min-width: 2.1em;
  }
  .mv-progress { flex: 1; display: flex; gap: 4px; }
  .mv-progress button {
    flex: 1; height: 18px; padding: 0; border: 0; background: none;
    cursor: pointer; position: relative;
  }
  .mv-progress button::before {
    content: ''; position: absolute; left: 0; right: 0; top: 7px; height: 4px;
    background: rgba(58,130,255,0.14);
    transition: background 0.35s, box-shadow 0.35s;
  }
  .mv-progress button.done::before { background: rgba(58,130,255,0.45); }
  .mv-progress button.on::before { background: var(--c-accent); }
  .mv-progress button:focus-visible { outline: 1px solid var(--c-accent); outline-offset: 2px; }
  .mv-name {
    font-family: 'Unbounded', sans-serif;
    font-weight: 700; font-size: var(--fs-18);
    line-height: 1.3;
    margin-bottom: var(--sp-8);
  }
  .mv-value { font-size: var(--fs-16); color: var(--c-text); line-height: 1.5; margin-bottom: var(--sp-24); }

  .module-screen {
    flex: 1;
    display: flex; flex-direction: column;
    border: 1px solid var(--c-border);
    background: rgba(0,0,0,0.55);
    padding: var(--sp-24);
    position: relative; overflow: hidden;
  }
  .screen-bar { display: flex; gap: var(--sp-8); margin-bottom: var(--sp-16); }
  .screen-bar span { width: 10px; height: 10px; border-radius: 50%; }
  .screen-bar .r { background: #ff5f57; }
  .screen-bar .y { background: #febc2e; }
  .screen-bar .g { background: #28c840; }
  .chat-line {
    font-family: 'Syne', sans-serif;
    font-size: var(--fs-16); line-height: 1.5;
    margin-bottom: var(--sp-8);
    display: flex; gap: var(--sp-12);
  }
  .chat-line .who {
    font-family: 'Space Mono', monospace;
    font-size: var(--fs-12); letter-spacing: 0.1em;
    padding-top: 4px; min-width: 22px;
  }
  .chat-line.user { color: var(--c-white); }
  .chat-line.user .who { color: var(--c-accent); }
  .chat-line.ai { color: var(--c-text-2); }
  .chat-line.ai .who { color: var(--c-purple); }
  .ai-block {
    margin-top: var(--sp-8);
    padding: var(--sp-16) var(--sp-24);
    background: rgba(58,130,255,0.05);
    border-left: 2px solid var(--c-accent);
    transition: opacity 0.4s, transform 0.4s;
  }
  .module-screen.pending .ai-block { opacity: 0; transform: translateY(8px); }
  .ai-block-title {
    font-family: 'Space Mono', monospace;
    font-size: var(--fs-12); color: var(--c-accent);
    letter-spacing: 0.15em; text-transform: uppercase; margin-bottom: var(--sp-8);
  }
  .ai-block-list { list-style: none; font-size: var(--fs-16); color: var(--c-white); line-height: 1.5; }
  .ai-block-list li { display: flex; gap: var(--sp-8); padding: 2px 0; }
  .ai-block-list li::before { content: '✓'; color: var(--c-accent); font-weight: 700; flex-shrink: 0; }
  .chat-cursor {
    display: inline-block; width: 7px; height: 14px;
    background: var(--c-accent); animation: blink 1s infinite;
    vertical-align: middle;
    margin-left: 4px;
  }
  @keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

  /* ─── FORMAT: heading left, vertical process right ─── */
  .format-layout {
    display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--sp-48); align-items: start;
  }
  .format-layout .section-head { margin-bottom: 0; }
  .format-layout .section-lead { margin-top: var(--sp-24); }
  .format-steps {
    list-style: none;
    border: 1px solid var(--c-border);
    background: var(--c-card);
    padding: var(--sp-32);
  }
  .fmt-step {
    position: relative;
    display: grid; grid-template-columns: 48px minmax(0, 1fr); column-gap: var(--sp-24);
    padding-bottom: var(--sp-32);
    opacity: 0; transform: translateY(20px);
    transition: opacity 0.6s, transform 0.6s;
  }
  .fmt-step:nth-child(2) { transition-delay: 0.1s; }
  .fmt-step:nth-child(3) { transition-delay: 0.2s; }
  .fmt-step:nth-child(4) { transition-delay: 0.3s; }
  .fmt-step.visible { opacity: 1; transform: translateY(0); }
  .fmt-step:last-child { padding-bottom: 0; }
  .fmt-step::before {
    content: ''; position: absolute; left: 24px; top: 56px; bottom: 8px; width: 1px;
    background: linear-gradient(180deg, rgba(58,130,255,0.55), rgba(58,130,255,0.08));
  }
  .fmt-step:last-child::before { display: none; }
  .fmt-node {
    width: 48px; height: 48px;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid rgba(58,130,255,0.35);
    background: var(--c-card);
    color: var(--c-accent);
  }
  .fmt-node svg { width: 24px; height: 24px; }
  .fmt-num {
    font-family: 'Space Mono', monospace;
    font-size: var(--fs-12); letter-spacing: 0.12em;
    color: var(--c-accent); margin-bottom: var(--sp-8);
  }
  .fmt-title {
    font-family: 'Unbounded', sans-serif;
    font-weight: 700; font-size: var(--fs-24);
    line-height: 1.25; margin-bottom: var(--sp-8);
  }
  .fmt-desc { font-size: var(--fs-16); color: var(--c-text); line-height: 1.55; }

  /* ─── DARK SCREENS (alternate with the canvas background) ─── */
  /* LOCKED — не менять без согласования с владельцем: dark sections are a 60% veil, not a solid fill,
     so the neural background stays visible through them */
  .slide--dark { background: rgba(19,22,27,0.6); position: relative; }
  .slide--dark::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0;
    height: 1px; background: linear-gradient(90deg, transparent, var(--c-blue), var(--c-accent), transparent);
  }

  /* ─── TESTIMONIALS ─── */
  .testimonials-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-16);
  }
  .testi-card {
    display: flex; flex-direction: column;
    min-height: clamp(340px, 46vh, 460px);
    border: 1px solid var(--c-border);
    padding: var(--sp-32);
    background: rgba(58,130,255,0.04);
    opacity: 0; transform: translateY(20px);
    transition: opacity 0.6s, transform 0.6s, border-color 0.3s;
  }
  .testi-card.visible { opacity: 1; transform: translateY(0); }
  .testi-stars {
    color: var(--c-accent); font-size: var(--fs-14); margin-bottom: var(--sp-16);
    letter-spacing: 3px;
  }
  .testi-result {
    font-family: 'Unbounded', sans-serif;
    font-weight: 800; font-size: var(--fs-24); line-height: 1.2;
    margin-bottom: var(--sp-16);
  }
  .testi-text { flex: 1; font-size: var(--fs-18); line-height: 1.55; color: var(--c-text); margin-bottom: var(--sp-24); }
  .testi-author {
    display: flex; align-items: center; gap: var(--sp-12);
    padding-top: var(--sp-16); border-top: 1px solid var(--c-border);
  }
  .testi-avatar {
    width: 48px; height: 48px; border-radius: 50%; flex-shrink: 0;
    background: linear-gradient(135deg, var(--c-blue), var(--c-purple));
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: var(--fs-14);
    border: 1px solid rgba(58,130,255,0.2);
  }
  .testi-name { font-weight: 700; font-size: var(--fs-16); }
  .testi-role { font-size: var(--fs-14); color: var(--c-text-2); }

  /* ─── FAQ: heading left, questions right ─── */
  .faq-layout {
    display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--sp-48); align-items: start;
  }
  .faq-aside .section-head { margin-bottom: var(--sp-32); }
  .faq-list { border-top: 1px solid var(--c-border); }
  .faq-item {
    border-bottom: 1px solid var(--c-border);
    cursor: pointer;
    transition: background 0.3s;
  }
  .faq-item:hover { background: rgba(58,130,255,0.02); }
  .faq-q:focus-visible { outline: 1px solid var(--c-accent); outline-offset: 2px; }
  .faq-q {
    padding: var(--sp-24) 0;
    display: flex; align-items: center; justify-content: space-between;
    gap: var(--sp-24);
    font-family: 'Syne', sans-serif;
    font-weight: 600; font-size: var(--fs-18); line-height: 1.35;
    color: var(--c-white);
  }
  .faq-toggle {
    font-family: 'Space Mono', monospace;
    color: var(--c-accent); font-size: var(--fs-24);
    width: 24px; height: 24px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    transition: transform 0.3s;
  }
  .faq-item.open .faq-toggle { transform: rotate(45deg); }
  .faq-a {
    max-height: 0; overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    padding: 0; max-width: 640px;
    font-size: var(--fs-16); color: var(--c-text); line-height: 1.6;
  }
  .faq-item.open .faq-a {
    max-height: 300px;
    padding: 0 0 var(--sp-24) 0;
  }
  .faq-a strong { color: var(--c-white); font-weight: 600; }

  /* ─── PRICING: one offer ─── */
  .offer {
    display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    position: relative;
    border: 1px solid rgba(58,130,255,0.35);
    background: linear-gradient(135deg, rgba(58,130,255,0.07), transparent 60%);
    opacity: 0; transform: translateY(20px);
    transition: opacity 0.7s, transform 0.7s;
  }
  .offer.visible { opacity: 1; transform: translateY(0); }
  .offer-main {
    padding: var(--sp-48);
    display: flex; flex-direction: column; align-items: flex-start;
    border-right: 1px solid var(--c-border);
  }
  .offer-kicker {
    font-family: 'Space Mono', monospace;
    font-size: var(--fs-12); letter-spacing: 0.2em; text-transform: uppercase;
    color: var(--c-accent); margin-bottom: var(--sp-12);
  }
  .offer-title {
    font-family: 'Unbounded', sans-serif; font-weight: 700;
    font-size: var(--fs-24); line-height: 1.2;
    margin-bottom: var(--sp-32);
  }
  .offer-price {
    font-family: 'Unbounded', sans-serif; font-weight: 900;
    font-size: var(--fs-display); line-height: 1;
    color: var(--c-white);
  }
  .offer-price span { color: var(--c-accent); }
  .offer-period { font-size: var(--fs-14); color: var(--c-text-2); margin-top: var(--sp-12); margin-bottom: var(--sp-32); }
  .offer-btn { align-self: stretch; text-align: center; }
  .offer-features { padding: var(--sp-48); }
  .offer-features-title {
    font-family: 'Space Mono', monospace;
    font-size: var(--fs-12); letter-spacing: 0.2em; text-transform: uppercase;
    color: var(--c-accent); margin-bottom: var(--sp-24);
  }
  .offer-features ul { list-style: none; display: flex; flex-direction: column; gap: var(--sp-12); }
  .offer-features li {
    display: flex; align-items: flex-start; gap: var(--sp-12);
    font-size: var(--fs-16); line-height: 1.45; color: var(--c-white);
  }
  .offer-features li::before { content: '✓'; color: var(--c-accent); font-weight: 700; flex-shrink: 0; }
  .offer-features li strong { font-weight: 700; }

  /* ─── FINAL / CLOCK ─── */
  #cta-final {
    text-align: center;
    overflow: hidden;
  }
  .cta-glow {
    position: absolute; top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 800px; height: 800px;
    background: radial-gradient(circle, rgba(58,130,255,0.12) 0%, transparent 70%);
    pointer-events: none;
  }
  .cta-message {
    font-family: 'Unbounded', sans-serif;
    font-weight: 800;
    font-size: var(--fs-display);
    line-height: 1.18;
    letter-spacing: -0.01em;
    max-width: 980px; margin: 0 auto;
    position: relative;
    opacity: 0; transform: translateY(20px);
    transition: opacity 0.8s, transform 0.8s;
  }
  .cta-message.visible { opacity: 1; transform: translateY(0); }
  .cta-message strong {
    color: var(--c-accent);
    font-weight: 800;
  }

  .countdown-wrap {
    display: flex; justify-content: center; align-items: flex-end; gap: var(--sp-24);
    margin-top: var(--sp-48);
    flex-wrap: wrap;
    opacity: 0; transform: translateY(20px);
    transition: opacity 0.8s 0.25s, transform 0.8s 0.25s;
  }
  .countdown-wrap.visible { opacity: 1; transform: translateY(0); }
  .cd-item { display: flex; flex-direction: column; align-items: center; gap: 10px; }
  .cd-num {
    font-family: 'Unbounded', sans-serif;
    font-size: var(--fs-display);
    font-weight: 900;
    color: var(--c-accent);
    text-align: center;
    border: 1px solid rgba(58,130,255,0.3);
    padding: var(--sp-16) var(--sp-24);
    min-width: 130px;
    background: var(--c-card);
    backdrop-filter: blur(8px);
    font-variant-numeric: tabular-nums;
  }
  .cd-label {
    font-family: 'Space Mono', monospace;
    font-size: var(--fs-12); letter-spacing: 0.2em; text-transform: uppercase; color: var(--c-text-2);
  }
  .cta-actions {
    display: flex; justify-content: center; align-items: center; gap: var(--sp-24);
    margin-top: var(--sp-48);
    opacity: 0; transform: translateY(20px);
    transition: opacity 0.8s 0.5s, transform 0.8s 0.5s;
  }
  .cta-actions.visible { opacity: 1; transform: translateY(0); }

  /* ─── FOOTER ─── */
  footer {
    border-top: 1px solid var(--c-border);
    padding: var(--sp-32) var(--pad-x);
    display: flex; align-items: center; justify-content: space-between;
    background: var(--c-void);
    flex-wrap: wrap; gap: 18px;
  }
  .footer-logo {
    font-family: 'Unbounded', sans-serif;
    font-weight: 900; font-size: 1.1rem; color: var(--c-accent);
  }
  .footer-copy {
    font-family: 'Space Mono', monospace;
    font-size: var(--fs-12); color: var(--c-muted); letter-spacing: 0.1em;
  }
  .footer-links { display: flex; gap: 24px; }
  .footer-links a {
    font-family: 'Space Mono', monospace;
    font-size: var(--fs-12); color: var(--c-muted); text-decoration: none;
    letter-spacing: 0.1em; transition: color 0.3s;
  }
  .footer-links a:hover { color: var(--c-accent); }

  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .glitch { position: relative; }
  .glitch::before, .glitch::after {
    content: attr(data-text);
    position: absolute; top: 0; left: 0; right: 0;
    font-family: 'Unbounded', sans-serif;
    font-weight: 900;
    overflow: hidden;
  }
  .glitch::before {
    left: 2px; color: var(--c-blue);
    clip-path: polygon(0 0, 100% 0, 100% 33%, 0 33%);
    animation: glitch1 4s infinite;
  }
  .glitch::after {
    left: -2px; color: var(--c-accent);
    clip-path: polygon(0 67%, 100% 67%, 100% 100%, 0 100%);
    animation: glitch2 4s infinite;
  }
  @keyframes glitch1 {
    0%, 90%, 100% { transform: none; opacity: 0; }
    91% { transform: translateX(-3px); opacity: 0.8; }
    94% { transform: translateX(3px); opacity: 0.8; }
    97% { transform: none; opacity: 0; }
  }
  @keyframes glitch2 {
    0%, 90%, 100% { transform: none; opacity: 0; }
    92% { transform: translateX(3px); opacity: 0.8; }
    95% { transform: translateX(-3px); opacity: 0.8; }
    98% { transform: none; opacity: 0; }
  }

  /* ─── CTA: button + price, repeated after key screens ─── */
  .section-cta { display: flex; align-items: center; gap: var(--sp-24); flex-wrap: wrap; margin-top: var(--sp-32); }
  .section-cta .btn-primary, .hero-actions .btn-primary, .cta-actions .btn-primary { white-space: nowrap; }
  .cta-note { display: flex; flex-direction: column; font-size: var(--fs-14); line-height: 1.4; color: var(--c-text-2); }
  .cta-note strong { font-family: 'Unbounded', sans-serif; font-weight: 800; font-size: var(--fs-18); color: var(--c-white); }

  /* ─── PROGRAM: plain two-column list ─── */
  .modules-layout { display: block; }
  .module-list {
    display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: repeat(5, auto); grid-auto-flow: column;
    column-gap: var(--sp-48);
    border-top: 0;
  }
  .module-list .module-item { grid-template-columns: 48px minmax(0, 1fr); cursor: default; border-top: 1px solid var(--c-border); border-bottom: 0; }
  .module-list .module-item:nth-child(5), .module-list .module-item:nth-child(10) { border-bottom: 1px solid var(--c-border); }
  .module-list .module-num { color: var(--c-accent); }
  .module-list .module-value { display: block; margin-top: 2px; }

  /* ─── REVIEWS: photo avatars ─── */
  .testi-avatar { position: relative; overflow: hidden; }
  .testi-avatar img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }

  /* ─── FINAL: message + certificate ─── */
  .final-grid { position: relative; width: 100%; display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--sp-48); align-items: center; }
  .final-grid .cta-message { font-size: var(--fs-h2); max-width: none; margin: 0; }
  .final-sub { font-size: var(--fs-18); color: var(--c-text); margin-top: var(--sp-24); max-width: 560px; }
  .final-grid .cta-actions { justify-content: flex-start; margin-top: var(--sp-32); }
  .cert { margin: 0; opacity: 0; transform: translateY(20px); transition: opacity 0.8s 0.3s, transform 0.8s 0.3s; perspective: 1400px; }
  .cert.visible { opacity: 1; transform: translateY(0); }
  .cert img {
    width: 100%; height: auto; display: block;
    box-shadow: 0 30px 80px rgba(0,0,0,0.6);
    transform: rotateX(var(--cert-rx, 0deg)) rotateY(var(--cert-ry, 0deg)) rotate(var(--cert-rz, 0deg));
    transition: transform 0.45s cubic-bezier(0.22, 0.61, 0.36, 1);
    will-change: transform;
  }
  .cert figcaption { margin-top: var(--sp-24); text-align: center; font-size: var(--fs-14); color: var(--c-text-2); }

  /* ─── FOR WHOM: now → after ─── */
  .aud-card { display: flex; flex-direction: column; gap: var(--sp-12); }
  .aud-card .aud-title { margin-bottom: var(--sp-4, 4px); }
  .aud-row { display: grid; grid-template-columns: 96px 1fr; gap: var(--sp-12); align-items: baseline; }
  .aud-row p { font-size: var(--fs-16); line-height: 1.45; }
  .aud-tag {
    font-family: 'Space Mono', monospace; font-size: var(--fs-12); letter-spacing: 0.04em;
    padding: 2px var(--sp-8); border: 1px solid; justify-self: start; white-space: nowrap;
  }
  .aud-now .aud-tag { color: var(--c-muted); border-color: rgba(130,137,150,0.5); }
  .aud-now p { color: var(--c-text-2); }
  .aud-after .aud-tag { color: var(--c-accent); border-color: rgba(58,130,255,0.4); background: rgba(58,130,255,0.06); }
  .aud-after p { color: var(--c-white); font-weight: 600; }

  /* ─── BENEFITS: big numbers ─── */
  .benefit-card { justify-content: flex-start; min-height: 0; }
  .ben-big {
    font-family: 'Unbounded', sans-serif; font-weight: 900;
    font-size: var(--fs-40); line-height: 1; color: var(--c-accent);
    margin-bottom: var(--sp-12);
  }
  .ben-label { font-family: 'Unbounded', sans-serif; font-weight: 700; font-size: var(--fs-18); line-height: 1.3; margin-bottom: var(--sp-12); }
  .ben-desc { font-size: var(--fs-16); line-height: 1.5; color: var(--c-text); }

  /* ─── PROGRAM: tiles ─── */
  .mod-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: var(--sp-12); }
  .mod-tile {
    position: relative; overflow: hidden;
    display: flex; flex-direction: column;
    min-height: 196px;
    padding: var(--sp-24);
    border: 1px solid var(--c-border);
    background: var(--c-card);
    transition: border-color 0.3s, transform 0.3s, background 0.3s;
  }
  .mod-tile:hover { border-color: rgba(58,130,255,0.45); background: var(--c-card-2); transform: translateY(-3px); }
  .mod-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--sp-12); position: relative; z-index: 1; }
  .mod-n { font-family: 'Space Mono', monospace; font-size: var(--fs-12); color: var(--c-accent); letter-spacing: 0.06em; }
  .mod-badge { font-family: 'Space Mono', monospace; font-size: var(--fs-12); color: var(--c-btn-text); background: var(--c-btn); padding: 1px var(--sp-8); }
  .mod-name { font-family: 'Unbounded', sans-serif; font-weight: 700; font-size: var(--fs-14); line-height: 1.35; margin-bottom: var(--sp-8); position: relative; z-index: 1; }
  .mod-val { font-size: var(--fs-14); line-height: 1.45; color: var(--c-text-2); margin-top: auto; position: relative; z-index: 1; }
  .mod-ghost {
    position: absolute; right: -6px; bottom: -22px;
    font-family: 'Unbounded', sans-serif; font-weight: 900; font-size: 7.5rem; line-height: 1;
    color: rgba(58,130,255,0.06);
    pointer-events: none; transition: color 0.3s;
  }
  .mod-tile:hover .mod-ghost { color: rgba(58,130,255,0.14); }
  .mod-tile--start, .mod-tile--pro { border-color: rgba(58,130,255,0.45); }
  .mod-tile--pro { background: linear-gradient(160deg, rgba(58,130,255,0.10), rgba(0,85,255,0.04)), var(--c-card); }
  .mod-tile--pro .mod-ghost { color: rgba(58,130,255,0.16); }

  /* ─── CERTIFICATE screen ─── */
  .cert-layout { width: 100%; display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: var(--sp-48); align-items: center; }
  .cert-layout .section-head { margin-bottom: var(--sp-32); }
  .cert-layout .section-lead { margin-top: var(--sp-16); }
  .cert-points { list-style: none; display: flex; flex-direction: column; gap: var(--sp-12); }
  .cert-points li { display: flex; gap: var(--sp-12); font-size: var(--fs-18); }
  .cert-points li::before { content: '✓'; color: var(--c-accent); font-weight: 700; }

  /* ─── FINAL: centred ─── */
  #cta-final { text-align: center; }
  .final-center { position: relative; width: 100%; }
  .final-center .cta-message { margin: 0 auto; }
  .final-center .cta-actions { justify-content: center; margin-top: var(--sp-48); text-align: left; }

  /* ─── BENEFITS: intro on the left, four results 2×2 on the right ─── */
  .benefits-layout {
    display: grid; grid-template-columns: minmax(320px, 475px) minmax(0, 1fr);
    column-gap: var(--sp-48); align-items: center;
  }
  .benefits-intro { display: flex; flex-direction: column; }
  .benefits-intro .section-h2 { margin-bottom: var(--sp-24); }
  .benefits-intro .section-lead { max-width: none; margin-bottom: 0; }
  .benefits-note {
    margin-top: var(--sp-32);
    font-size: var(--fs-14); line-height: 1.5; color: var(--c-text-2);
  }
  .benefits-grid { grid-template-columns: repeat(2, 1fr); }
  .benefits-grid .benefit-card {
    min-height: clamp(190px, 27vh, 280px);
    justify-content: flex-end;
  }
  .benefits-grid .benefit-icon { margin-bottom: auto; }
  .benefits-grid .ben-big { font-size: var(--fs-display); margin-bottom: var(--sp-16); }
  /* two lines of room under every number, so the numbers themselves stay on one line */
  .benefits-grid .ben-label { font-size: var(--fs-18); margin-bottom: 0; min-height: calc(2 * 1.3em); }

  /* ─── PROGRAM: path + four even cards ─── */
  .path {
    list-style: none; position: relative;
    display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-16);
    margin-bottom: var(--sp-16);
  }
  .path::before {
    content: ''; position: absolute; left: 20px; right: calc(25% - 20px); top: 50%; height: 2px; transform: translateY(-50%);
    background: var(--c-border);
  }
  .path-node span {
    position: relative; z-index: 1;
    width: 40px; height: 40px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-family: 'Unbounded', sans-serif; font-weight: 800; font-size: var(--fs-16);
    color: var(--c-text-2); background: var(--c-bg);
    border: 1px solid var(--c-border);
    transition: color 0.3s, background 0.3s, border-color 0.3s, box-shadow 0.3s;
  }
  /* lit only while the matching stage card is hovered — see the script below */
  .path-node.on span {
    /* same treatment as a hovered card: translucent tint, accent border, soft glow */
    color: var(--c-accent);
    background: linear-gradient(rgba(58,130,255,0.07), rgba(58,130,255,0.07)), var(--c-bg);
    border-color: rgba(58,130,255,0.5);
    box-shadow: 0 0 28px rgba(58,130,255,0.16);
  }

  .stages { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-16); }
  .stage {
    display: flex; flex-direction: column;
    padding: var(--sp-24);
    border: 1px solid var(--c-border); background: rgba(58,130,255,0.04);
    transition: border-color 0.3s;
  }
  /* no permanent highlight: only the accent title marks the final stage */
  .stage-title {
    font-family: 'Unbounded', sans-serif; font-weight: 800; font-size: var(--fs-24); line-height: 1.2;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    margin-bottom: var(--sp-12);
  }
  .stage--pro .stage-title { color: var(--c-accent); }
  .stage-res { font-size: var(--fs-16); line-height: 1.5; color: var(--c-white); min-height: 3em; margin-bottom: var(--sp-24); }
  .stage-mods {
    list-style: none; padding-top: var(--sp-16); border-top: 1px solid var(--c-border);
    display: flex; flex-direction: column; gap: var(--sp-12);
  }
  .stage-mods li { display: grid; grid-template-columns: 24px 1fr; gap: var(--sp-12); align-items: start; font-size: var(--fs-14); line-height: 1.4; color: var(--c-text-2); }
  .stage-mods b {
    width: 24px; height: 24px; display: flex; align-items: center; justify-content: center;
    font-family: 'Space Mono', monospace; font-size: var(--fs-12); font-weight: 700;
    color: var(--c-accent); border: 1px solid rgba(58,130,255,0.35); background: rgba(58,130,255,0.06);
  }

  /* ─── AUTHOR: clean ─── */
  .author-body { justify-content: center; padding: var(--sp-48); }
  #instructor .author-photo { min-height: clamp(520px, 68vh, 700px); }
  #instructor .author-photo img { object-position: 38% 18%; }
  .author-body .author-name { font-size: var(--fs-40); margin-bottom: var(--sp-24); }
  .author-stats { display: grid; grid-template-columns: repeat(4, auto); justify-content: start; gap: var(--sp-48); margin-top: var(--sp-32); padding-top: var(--sp-32); border-top: 1px solid var(--c-border); }
  .author-stats b { display: block; font-family: 'Unbounded', sans-serif; font-weight: 900; font-size: var(--fs-40); line-height: 1; color: var(--c-accent); }
  .author-stats span { display: block; margin-top: var(--sp-8); font-size: var(--fs-14); color: var(--c-text-2); }

  /* ─── BACKGROUNDS: soft glows per screen, faint grid on hero and certificate ─── */
  #hero, .slide { position: relative; isolation: isolate; }
  /* LOCKED — не менять без согласования с владельцем: section glow spots (colors, alphas, multipliers, per-section --g* values below) */
  #hero::after, .slide::after {
    content: ''; position: absolute; inset: 0; z-index: -1; pointer-events: none;
    background:
      radial-gradient(55% 60% at var(--g1x, 85%) var(--g1y, 25%), rgba(58,130,255,var(--g1a, 0.07)), transparent 70%),
      radial-gradient(50% 55% at var(--g2x, 10%) var(--g2y, 85%), rgba(0,85,255,var(--g2a, 0.07)), transparent 70%);
  }
  #benefits    { --g1x: 15%; --g1y: 20%; --g2x: 90%; --g2y: 80%; }
  #modules     { --g1x: 90%; --g1y: 15%; --g2x: 5%;  --g2y: 90%; --g1a: 0.09; }
  #instructor  { --g1x: 12%; --g1y: 50%; --g2x: 95%; --g2y: 10%; }
  #certificate { --g1x: 70%; --g1y: 50%; --g1a: 0.14; --g2x: 10%; --g2y: 20%; }
  #social      { --g1x: 85%; --g1y: 85%; --g2x: 10%; --g2y: 15%; }
  #pricing     { --g1x: 50%; --g1y: 60%; --g1a: 0.10; --g2x: 90%; --g2y: 10%; }
  #faq         { --g1x: 10%; --g1y: 30%; --g2x: 90%; --g2y: 90%; }
  #hero        { --g1x: 75%; --g1y: 40%; --g1a: 0.10; --g2x: 20%; --g2y: 100%; --g2a: 0.10; }
  /* LOCKED — не менять без согласования с владельцем: grid overlay alpha */
  #hero::before, #certificate::before {
    content: ''; position: absolute; inset: 0; z-index: -1; pointer-events: none;
    background-image:
      linear-gradient(rgba(58,130,255,0.05) 1px, transparent 1px),
      linear-gradient(90deg, rgba(58,130,255,0.05) 1px, transparent 1px);
    background-size: 64px 64px;
    -webkit-mask-image: radial-gradient(ellipse 70% 70% at 70% 45%, #000 20%, transparent 75%);
            mask-image: radial-gradient(ellipse 70% 70% at 70% 45%, #000 20%, transparent 75%);
  }
  .slide--dark::before { z-index: 1; }

  /* ─── RESPONSIVE ─── */
  @media (max-width: 1200px) {
    .baikin-creds { grid-template-columns: repeat(2, auto); justify-content: start; }
  }
  @media (max-width: 1000px) {
    .benefits-layout { grid-template-columns: 1fr; row-gap: var(--sp-32); }
    .benefits-intro .section-lead br, .benefits-note br { display: none; }
    .benefits-grid, .stages { grid-template-columns: repeat(2, 1fr); }
    .path { display: none; }
    .author-stats { grid-template-columns: repeat(2, auto); gap: var(--sp-24) var(--sp-48); }
    .mod-grid { grid-template-columns: repeat(2, 1fr); }
    .cert-layout { grid-template-columns: 1fr; }
    .module-list { grid-template-columns: 1fr; grid-template-rows: none; grid-auto-flow: row; }
    .module-list .module-item:nth-child(5) { border-bottom: 0; }
    .final-grid { grid-template-columns: 1fr; }
    .cert img { --cert-rx: 0deg; --cert-ry: 0deg; --cert-rz: 0deg; }
    .audience-grid, .benefits-grid { grid-template-columns: repeat(2, 1fr); }
    .team-people { grid-template-columns: repeat(3, 1fr); }
    .format-layout, .faq-layout { grid-template-columns: 1fr; gap: var(--sp-32); }
    .offer { grid-template-columns: 1fr; }
    .offer-main { border-right: 0; border-bottom: 1px solid var(--c-border); }
    .modules-layout { grid-template-columns: 1fr; gap: var(--sp-32); }
    .module-visual { display: none; }
    .module-value { display: block; margin-top: 2px; }
    .author-card { grid-template-columns: 1fr; }
    .author-photo { min-height: 0; aspect-ratio: 4 / 3; border-right: 0; border-bottom: 1px solid var(--c-border); }
  }
  @media (max-width: 900px) {
    .benefits-grid, .stages { grid-template-columns: 1fr; }
    .benefits-grid .benefit-card { min-height: 0; }
    .author-body { padding: var(--sp-24); }
    .mod-grid { grid-template-columns: 1fr; }
    .mod-tile { min-height: 0; }
    .aud-row { grid-template-columns: 1fr; gap: var(--sp-8); }
    :root { --nav-h: 64px; --gutter: 22px; }
    html { scroll-padding-top: var(--nav-h); }
    .nav-links { display: none; }
    .team-people { grid-template-columns: repeat(2, 1fr); gap: var(--sp-8); }
    body, body * { cursor: auto !important; }
    #cursor, #cursor-ring { display: none; }
    .btn-primary, .btn-ghost, .btn-price, a, button, .module-item, .faq-item { cursor: pointer !important; }

    /* on phones sections follow their content */
    .slide { min-height: 0; padding: 64px var(--gutter); }
    #cta-final { min-height: 100svh; }

    #hero { padding: calc(var(--nav-h) + var(--sp-24)) var(--gutter) var(--sp-48); height: auto; min-height: 100vh; }
    .hero-body { grid-template-columns: 1fr; row-gap: var(--sp-32); margin-top: var(--sp-24); }
    .hero-stats {
      flex-direction: row; flex-wrap: wrap; justify-content: flex-start;
      gap: var(--sp-16) var(--sp-32);
      padding-left: 0; border-left: 0;
      padding-top: var(--sp-24); border-top: 1px solid var(--c-border);
    }
    .stat-num { font-size: var(--fs-24); }

    .audience-grid, .benefits-grid, .testimonials-grid, .team-grid { grid-template-columns: 1fr; }
    .aud-card, .benefit-card, .testi-card, .expert-card { padding: var(--sp-24); }
    .benefits-grid .ben-label { min-height: 0; }
    .format-steps { padding: var(--sp-24); }
    .expert-card, .testi-card { min-height: 0; }
    .faq-q { padding: var(--sp-16) 0; font-size: var(--fs-16); }
    .fmt-step { column-gap: var(--sp-16); }
    .offer-main, .offer-features { padding: var(--sp-32) var(--sp-24); }
    .expert-photo { width: 88px; height: 88px; font-size: var(--fs-24); }
    .benefit-card { min-height: 0; }
    .author-body { padding: var(--sp-24); }
    .author-fact { grid-template-columns: 1fr; gap: var(--sp-8); }
    .author-photo { aspect-ratio: 4 / 5; max-height: 460px; }
    .baikin-creds { grid-template-columns: 1fr 1fr; }
    .module-item { grid-template-columns: 34px minmax(0, 1fr); padding: var(--sp-12) var(--sp-8) var(--sp-12) var(--sp-12); }
    .module-tag { display: none; }

    .countdown-wrap { gap: var(--sp-12); }
    .testimonials-grid { gap: var(--sp-16); }
    .cd-num { min-width: 0; padding: var(--sp-12) var(--sp-16); font-size: var(--fs-40); }

    footer { flex-direction: column; gap: var(--sp-16); text-align: center; padding: var(--sp-32) var(--gutter); }
  }
  @media (prefers-reduced-motion: reduce) {
  }
  /* ─── AGENT: your to-do list, ticked off by the assistant ─── */
  .todo-layout { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); column-gap: 72px; align-items: center; }
  .todo-intro .section-h2 { margin-bottom: var(--sp-24); }
  .todo-intro .section-lead { margin-bottom: 0; }
  .todo {
    position: relative; z-index: 2;
    padding: var(--sp-32) var(--sp-32) var(--sp-24);
    background: var(--c-card); border: 1px solid var(--c-border);
    box-shadow: 0 30px 80px rgba(0,0,0,0.4), 0 0 70px rgba(58,130,255,0.1);
  }
  .todo-h { font-family: 'Unbounded', sans-serif; font-weight: 700; font-size: var(--fs-24); color: var(--c-white); margin-bottom: var(--sp-16); }
  .todo-list { list-style: none; }
  .todo-it {
    display: grid; grid-template-columns: 28px minmax(0, 1fr); align-items: center; column-gap: var(--sp-16);
    padding: 20px 0; border-bottom: 1px solid var(--c-border);
  }
  .todo-box { width: 28px; height: 28px; border: 2px solid rgba(255,255,255,0.25); border-radius: 8px; position: relative; transition: background 0.25s, border-color 0.25s; }
  .todo-box::after {
    content: ''; position: absolute; left: 8px; top: 2px; width: 8px; height: 15px;
    border: solid #fff; border-width: 0 2.5px 2.5px 0; transform: rotate(45deg) scale(1);
    transition: transform 0.25s 0.1s cubic-bezier(.3,1.6,.5,1);
  }
  .todo-tx { justify-self: start; font-size: var(--fs-18); line-height: 1.35; color: var(--c-white); }
  /* done state (default without JS) */
  .todo-box { background: var(--c-accent); border-color: var(--c-accent); }
  /* before the run */
  .todo.js .todo-it:not(.on) .todo-box { background: transparent; border-color: rgba(255,255,255,0.25); }
  .todo.js .todo-it:not(.on) .todo-box::after { transform: rotate(45deg) scale(0); }
  .todo-foot { margin-top: var(--sp-24); font-size: var(--fs-18); color: var(--c-text-2); text-align: right; }
  .todo-foot b { font-family: 'Unbounded', sans-serif; font-weight: 800; font-size: var(--fs-24); color: var(--c-accent); margin-left: var(--sp-8); }
  .todo-top { display: flex; justify-content: space-between; align-items: center; gap: var(--sp-16); margin-bottom: var(--sp-16); }
  .todo-top .todo-h { margin-bottom: 0; }
  .todo-status {
    display: inline-flex; align-items: center; gap: var(--sp-8); flex-shrink: 0;
    padding: 6px 14px; border-radius: 999px;
    font-size: var(--fs-14); font-weight: 600; color: var(--c-white);
    background: rgba(58,130,255,0.14); border: 1px solid rgba(58,130,255,0.45);
  }
  .todo-status::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--c-accent); box-shadow: 0 0 10px var(--c-accent); }
  .todo.js.busy .todo-status::before { animation: blink 1s infinite; }
  .todo-bar { height: 3px; background: rgba(255,255,255,0.06); margin-bottom: var(--sp-8); overflow: hidden; }
  .todo-bar i { display: block; height: 100%; width: calc(var(--p, 1) * 100%); background: var(--c-accent); box-shadow: 0 0 12px var(--c-accent); transition: width 0.6s cubic-bezier(.2,.8,.2,1); }
  /* a flash of light runs through each row the moment it's done */
  .todo-it { position: relative; }
  .todo-it::before {
    content: ''; position: absolute; inset: 0 -16px; pointer-events: none; opacity: 0;
    background: linear-gradient(90deg, transparent, rgba(58,130,255,0.22), transparent);
    transform: translateX(-60%);
  }
  .todo.js .todo-it.on::before { animation: todoSweep 0.9s ease-out; }
  @keyframes todoSweep { 0% { opacity: 1; transform: translateX(-60%); } 100% { opacity: 0; transform: translateX(60%); } }
  .todo.js .todo-it.on .todo-box { animation: todoPop 0.45s cubic-bezier(.3,1.6,.5,1); box-shadow: 0 0 16px rgba(58,130,255,0.7); }
  @keyframes todoPop { 0% { transform: scale(0.6); } 100% { transform: scale(1); } }
  .todo-box { transition: background 0.25s, border-color 0.25s, box-shadow 0.8s; }
  .todo-foot b { display: inline-block; }
  .todo.js.done .todo-foot b { animation: todoPop 0.5s cubic-bezier(.3,1.6,.5,1); }
  .todo { transition: box-shadow 0.8s, border-color 0.8s; }
  .todo.js.done { border-color: rgba(58,130,255,0.45); box-shadow: 0 30px 80px rgba(0,0,0,0.4), 0 0 90px rgba(58,130,255,0.22); }

  @media (max-width: 1000px) {
    .todo-layout { grid-template-columns: 1fr; row-gap: var(--sp-32); }
  }
  @media (max-width: 900px) {
    .todo { padding: var(--sp-24) var(--sp-16) var(--sp-16); }
    .todo-h { font-size: var(--fs-18); }
    .todo-it { grid-template-columns: 28px minmax(0, 1fr); padding: 14px 0; }
    .todo-top { flex-wrap: wrap; }
    .todo-tx { font-size: var(--fs-16); }
  }

  /* ─── PROGRAM: level bar. As it charges, each level unlocks its skill tiles and the counters tick up ─── */
  .lu-title { margin-bottom: 0; font-size: var(--fs-display); text-align: center; text-wrap: balance; }
  .lu-nw { white-space: nowrap; }  /* if it has to break, it breaks only after the dash */
  .lu-head { display: flex; justify-content: center; }
  .lu-head > div { width: 100%; }

  .lu { --ny: 30px; position: relative; margin-top: 112px; }
  .lu-bar { position: absolute; left: 12.5%; right: 12.5%; top: var(--ny); height: 8px; margin-top: -4px; border-radius: 4px; background: rgba(58,130,255,0.12); overflow: hidden; }
  .lu-fill { display: block; height: 100%; width: var(--p, 100%); background: linear-gradient(90deg, rgba(58,130,255,0.55), var(--c-accent)); box-shadow: 0 0 18px rgba(58,130,255,0.7); transition: width 0.7s cubic-bezier(.55,0,.25,1); }
  .lu-levels { list-style: none; position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-16); }
  .lu-lv { display: flex; flex-direction: column; align-items: center; min-width: 0; }
  .lu-node {
    position: relative; z-index: 1; width: 60px; height: 60px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-family: 'Unbounded', sans-serif; font-weight: 800; font-size: var(--fs-24); color: #fff;
    background: var(--c-accent); border: 4px solid var(--c-bg); box-shadow: 0 0 0 2px var(--c-accent), 0 0 26px rgba(58,130,255,0.6);
    transition: background 0.3s, color 0.3s, box-shadow 0.3s;
  }
  .lu-lv--pro .lu-node { width: 96px; border-radius: 30px; font-size: var(--fs-18); letter-spacing: 0.06em; }
  .lu-body { width: 100%; margin-top: var(--sp-24); }
  .lu-name { font-family: 'Unbounded', sans-serif; font-weight: 700; font-size: var(--fs-18); color: var(--c-white); text-align: center; margin-bottom: var(--sp-16); transition: opacity 0.4s; }
  .lu-lv--pro .lu-name { color: var(--c-accent); }
  .lu-tiles { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-8); }
  .lu-tile {
    display: flex; align-items: center; gap: 10px; min-width: 0;
    padding: 12px 12px; border-radius: 12px;
    background: rgba(58,130,255,0.035); border: 1px solid rgba(255,255,255,0.08);
    font-size: var(--fs-14); font-weight: 500; color: var(--c-text-2);
    transition: opacity 0.35s, transform 0.35s cubic-bezier(.3,1.5,.5,1), background 0.35s, border-color 0.35s;
  }
  .lu-tile svg { width: 22px; height: 22px; flex-shrink: 0; fill: none; stroke: rgba(58,130,255,0.7); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
  .lu-tile span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

  /* locked until the bar reaches the level */
  .lu.js .lu-lv:not(.on) .lu-node { background: var(--c-bg); color: var(--c-muted); box-shadow: 0 0 0 2px rgba(58,130,255,0.3); }
  .lu.js .lu-lv:not(.on) .lu-name { opacity: 0.35; }
  .lu.js .lu-tile:not(.on) { opacity: 0.18; transform: scale(0.92); }
  .lu.js .lu-lv.on .lu-node { animation: luPop 0.5s cubic-bezier(.3,1.6,.5,1); }
  @keyframes luPop { 0% { transform: scale(0.8); } 100% { transform: scale(1); } }

  @media (min-width: 901px) and (max-width: 1280px) {
    .lu-tiles { grid-template-columns: 1fr; }
  }
  @media (max-width: 900px) {
    .lu-title { text-align: left; }
    .lu-nw { white-space: normal; }
    .lu { margin-top: var(--sp-32); }
    .lu-bar { left: 22px; right: auto; top: 22px; bottom: 22px; width: 6px; height: auto; margin: 0 0 0 -3px; }
    .lu-fill { width: 100%; height: var(--p, 100%); background: linear-gradient(180deg, rgba(58,130,255,0.55), var(--c-accent)); transition: height 0.7s cubic-bezier(.55,0,.25,1); }
    .lu-levels { grid-template-columns: 1fr; gap: var(--sp-32); }
    .lu-lv { display: grid; grid-template-columns: 44px 1fr; column-gap: var(--sp-16); align-items: start; }
    .lu-node, .lu-lv--pro .lu-node { width: 44px; height: 44px; font-size: var(--fs-16); border-width: 3px; }
    .lu-lv--pro .lu-node { font-size: 11px; border-radius: 50%; letter-spacing: 0; }
    .lu-body { margin-top: 8px; }
    .lu-name { text-align: left; margin-bottom: var(--sp-12); }
    }
  @media (prefers-reduced-motion: reduce) {
    .lu-fill, .lu-tile, .lu-node { transition: none !important; animation: none !important; }
  }

  /* ─── PROGRAM · tree layout: the trunk drops from each circle, the stage name is its first branch ─── */
  .lu--tree { --nc: 30px; --gap: 12px; --br: 24px; }                 /* --nc: centre of a 60px circle */
  .lu--tree .lu-bar { left: var(--nc); right: calc((100% - 3 * var(--sp-16)) / 4 - var(--nc)); }
  .lu--tree .lu-lv { display: grid; grid-template-columns: 60px minmax(0, 1fr); justify-items: start; }
  .lu--tree .lu-lv--pro .lu-node { width: 60px; border-radius: 50%; font-size: 13px; letter-spacing: 0.04em; }
  .lu--tree .lu-name { display: none; }
  .lu--tree .lu-body { grid-column: 1 / -1; justify-self: stretch; position: relative; margin-top: 0; padding: 20px 0 0 calc(var(--nc) + var(--br)); }
  .lu--tree .lu-body::before { content: ''; position: absolute; left: var(--nc); top: 0; bottom: var(--tb, 29px); width: 1px; margin-left: -0.5px; background: rgba(58,130,255,0.7); transform-origin: top; }
  .lu--tree .lu-tiles { grid-template-columns: 1fr; gap: var(--gap); }
  .lu--tree .lu-tile { position: relative; overflow: visible; }
  .lu--tree .lu-tile span { white-space: normal; }
  .lu--tree .lu-tile::before { content: ''; position: absolute; left: calc(-1 * var(--br)); top: 50%; width: var(--br); height: 1px; background: rgba(58,130,255,0.7); transform-origin: left; }
  .lu--tree .lu-tile--head { min-height: 0; padding-left: 4px; background: none; border-color: transparent; font-family: 'Unbounded', sans-serif; font-weight: 700; font-size: var(--fs-18); color: var(--c-white); }
  .lu--tree .lu-lv--pro .lu-tile--head { color: var(--c-accent); }
  .lu--tree .lu-tile:not(.lu-tile--head) { transition: background 0.3s, border-color 0.3s, box-shadow 0.3s, transform 0.3s; }
  .lu--tree .lu-tile:not(.lu-tile--head):hover { background: rgba(58,130,255,0.09); border-color: rgba(58,130,255,0.5); box-shadow: 0 0 22px rgba(58,130,255,0.16); }

  /* order of appearance: circle lights up → trunk grows → branches draw → tiles fade in */
  .lu--tree.js .lu-tile:not(.on) { opacity: 1; transform: none; }    /* tiles follow the stage, not their own flag */
  .lu--tree.js .lu-body::before { transform: scaleY(0); transition: transform 0.45s cubic-bezier(.22,.61,.36,1) 0.05s; }
  .lu--tree.js .lu-lv.on .lu-body::before { transform: scaleY(1); }
  .lu--tree.js .lu-tile::before { transform: scaleX(0); transition: transform 0.22s ease-out calc(0.15s + var(--i) * 0.08s); }
  .lu--tree.js .lu-lv.on .lu-tile::before { transform: scaleX(1); }
  .lu--tree.js .lu-tile:not(.lu-tile--head) { background: transparent; border-color: transparent; transition: background 0.3s ease-out, border-color 0.3s ease-out, box-shadow 0.3s; transition-delay: calc(0.2s + var(--i) * 0.08s); }
  .lu--tree.js .lu-lv.on .lu-tile:not(.lu-tile--head) { background: rgba(58,130,255,0.035); border-color: rgba(255,255,255,0.08); }
  .lu--tree.js .lu-lv.on .lu-tile:not(.lu-tile--head):hover { background: rgba(58,130,255,0.09); border-color: rgba(58,130,255,0.5); transition-delay: 0s; }
  .lu--tree.js .lu-tile > * { opacity: 0; transform: translateX(-8px); transition: opacity 0.3s ease-out, transform 0.3s ease-out; transition-delay: calc(0.22s + var(--i) * 0.08s); }
  .lu--tree.js .lu-lv.on .lu-tile > * { opacity: 1; transform: none; }

  @media (max-width: 900px) {
    .lu--tree .lu-bar { right: auto; }
    .lu--tree .lu-lv { grid-template-columns: 44px 1fr; }
    .lu--tree .lu-lv--pro .lu-node { width: 44px; font-size: 11px; }
    .lu--tree .lu-body { grid-column: 2; padding: 0; }
    .lu--tree .lu-body::before, .lu--tree .lu-tile::before { display: none; }
  }
  @media (prefers-reduced-motion: reduce) {
    .lu--tree .lu-body::before, .lu--tree .lu-tile::before, .lu--tree .lu-tile, .lu--tree .lu-tile > * { transition: none !important; }
  }

  /* ─── TESTIMONIALS · carousel, four per page, dots below ─── */
  .testi-carousel { --per: 4; --gap: var(--sp-16); }
  .testi-viewport { overflow: hidden; margin: -20px calc(-1 * var(--gap)); padding: 20px var(--gap); }
  .testi-track { display: flex; gap: var(--gap); transition: transform 0.6s cubic-bezier(.22,.61,.36,1); will-change: transform; }
  .testi-track .testi-card { flex: 0 0 calc((100% - (var(--per) - 1) * var(--gap)) / var(--per)); min-height: clamp(300px, 40vh, 400px); padding: var(--sp-24); }
  .testi-track .testi-result { font-size: var(--fs-18); }
  .testi-track .testi-text { font-size: var(--fs-16); }
  .testi-dots { display: flex; justify-content: center; gap: 10px; margin-top: var(--sp-32); }
  .testi-dots button { width: 10px; height: 10px; padding: 0; border: 0; border-radius: 99px; background: rgba(255,255,255,0.16); transition: width 0.3s, background 0.3s; }
  .testi-dots button:hover { background: rgba(255,255,255,0.3); }
  .testi-dots button[aria-current="true"] { width: 32px; background: var(--c-accent); }
  @media (max-width: 1200px) { .testi-carousel { --per: 3; } }
  @media (max-width: 1000px) { .testi-carousel { --per: 2; } }
  @media (max-width: 700px) { .testi-carousel { --per: 1; } }

  /* ─── REVIEW · sign-in dialog ─── */
  .auth { position: fixed; inset: 0; z-index: 500; display: grid; place-items: center; padding: var(--sp-16); }
  .auth[hidden] { display: none; }
  .auth-backdrop { position: absolute; inset: 0; background: rgba(5,8,12,0.72); backdrop-filter: blur(6px); animation: authFade 0.25s ease-out; }
  .auth-box {
    position: relative; width: min(440px, 100%); padding: var(--sp-32);
    background: var(--c-bg); border: 1px solid rgba(58,130,255,0.35);
    box-shadow: 0 30px 80px rgba(0,0,0,0.5), 0 0 60px rgba(58,130,255,0.12);
    animation: authIn 0.3s cubic-bezier(.22,.61,.36,1);
  }
  .auth-x { position: absolute; top: 12px; right: 12px; width: 36px; height: 36px; border: 0; background: none; color: var(--c-text-2); font-size: 26px; line-height: 1; transition: color 0.2s; }
  .auth-x:hover { color: var(--c-white); }
  .auth-kicker { font-family: 'Space Mono', monospace; font-size: var(--fs-12); letter-spacing: 0.2em; text-transform: uppercase; color: var(--c-accent); margin-bottom: var(--sp-12); }
  .auth-title { font-family: 'Unbounded', sans-serif; font-weight: 700; font-size: var(--fs-24); line-height: 1.2; color: var(--c-white); margin-bottom: var(--sp-12); }
  .auth-text { font-size: var(--fs-16); line-height: 1.55; color: var(--c-text-2); margin-bottom: var(--sp-24); }
  .auth-form { display: grid; gap: var(--sp-16); }
  .auth-field { display: grid; gap: 6px; font-size: var(--fs-14); color: var(--c-text-2); }
  .auth-field input {
    font: inherit; font-size: var(--fs-16); color: var(--c-white);
    padding: 14px 16px; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.12); border-radius: 0; outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
  }
  .auth-field input::placeholder { color: rgba(255,255,255,0.3); }
  .auth-field input:focus { border-color: rgba(58,130,255,0.7); box-shadow: 0 0 0 3px rgba(58,130,255,0.15); }
  .auth-submit { width: 100%; text-align: center; margin-top: var(--sp-8); }
  .auth-note { font-size: var(--fs-14); color: var(--c-accent); text-align: center; }
  .auth-forgot { justify-self: center; font-size: var(--fs-14); color: var(--c-text-2); text-decoration: none; }
  .auth-forgot:hover { color: var(--c-white); }
  @keyframes authFade { from { opacity: 0; } to { opacity: 1; } }
  @keyframes authIn { from { opacity: 0; transform: translateY(16px) scale(0.98); } to { opacity: 1; transform: none; } }
  body.auth-open { overflow: hidden; }

  /* ─── PURCHASE · checkout dialog (reuses .auth) ─── */
  .buy-sum {
    display: flex; justify-content: space-between; align-items: baseline; gap: var(--sp-16);
    padding: var(--sp-12) 0; margin-bottom: var(--sp-16);
    border-top: 1px solid var(--c-divider); border-bottom: 1px solid var(--c-divider);
    font-size: var(--fs-14); color: var(--c-text-2);
  }
  .buy-sum b { font-family: 'Unbounded', sans-serif; font-weight: 700; font-size: var(--fs-18); color: var(--c-white); white-space: nowrap; }
  .buy-agree { display: grid; grid-template-columns: 18px 1fr; gap: var(--sp-12); align-items: start; font-size: var(--fs-14); line-height: 1.5; color: var(--c-text-2); }
  .buy-agree input { width: 18px; height: 18px; margin: 2px 0 0; accent-color: var(--c-btn); }
  .buy-agree a { color: var(--c-accent); text-decoration: none; }
  .buy-agree a:hover { text-decoration: underline; }
  .buy-error { font-size: var(--fs-14); color: #ff7a7a; }
  .buy-note { font-size: var(--fs-12); line-height: 1.5; color: var(--c-muted); text-align: center; }
  .auth-submit[disabled] { opacity: 0.6; pointer-events: none; }