/* =====================================================================
   LEARNCASTS — design system
   ---------------------------------------------------------------------
   One dark surface, one typeface, one scale. Everything below derives
   from the tokens in @layer tokens — change a token, the whole site
   moves with it. Cascade order is declared once so later rules never
   need !important to win.
   ===================================================================== */

@layer tokens, base, layout, components, utilities, motion;

/* ─────────────────────────────── TOKENS ─────────────────────────── */
@layer tokens {
  :root {
    color-scheme: dark;

    /* surfaces — one ramp, each step a deliberate elevation */
    --bg:        #07070a;
    --surface:   #0e0e13;
    --surface-2: #14141b;
    --surface-3: #1b1b24;

    /* ink — white down to silver, never pure grey mush */
    --ink:   #f5f6f8;
    --ink-2: #b7bcc9;
    --ink-3: #868c9c;
    --ink-4: #5d6373;

    /* hairlines */
    --line:   rgba(255,255,255,.08);
    --line-2: rgba(255,255,255,.15);
    --line-3: rgba(255,255,255,.24);

    /* brand — cool spectrum, tuned for luminance on black */
    --spark: #22d3ee;
    --core:  #6366f1;
    --pulse: #c026d3;
    --ember: #fb7185;
    --mint:  #34d399;
    --grad:      linear-gradient(118deg, var(--spark) 0%, var(--core) 48%, var(--pulse) 100%);
    --grad-soft: linear-gradient(118deg, rgba(34,211,238,.16), rgba(99,102,241,.16), rgba(192,38,211,.16));
    --ring: rgba(99,102,241,.55);

    /* type — one family, fluid scale, tabular figures where compared */
    --font: 'Inter','Inter var',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
    --mono: ui-monospace,'SF Mono','JetBrains Mono','Cascadia Code',Menlo,monospace;

    --t--1: clamp(12.5px, 0.15vw + 12px, 13.5px);
    --t-0:  clamp(15px,   0.2vw  + 14px, 16.5px);
    --t-1:  clamp(17px,   0.4vw  + 16px, 19px);
    --t-2:  clamp(20px,   0.7vw  + 18px, 24px);
    --t-3:  clamp(24px,   1.4vw  + 20px, 32px);
    --t-4:  clamp(30px,   2.6vw  + 22px, 46px);
    --t-5:  clamp(38px,   5.2vw  + 20px, 82px);

    /* weight roles — used by name, never by number, so they stay consistent */
    --w-body: 400;
    --w-ui:   550;
    --w-em:   650;
    --w-head: 780;
    --w-disp: 850;

    /* tracking follows size: big type tightens, small type opens up */
    --track-disp: -.038em;
    --track-head: -.026em;
    --track-body: -.005em;
    --track-micro: .14em;

    /* space — a single 4px-rooted rhythm */
    --s-1: 4px;  --s-2: 8px;  --s-3: 12px; --s-4: 16px;
    --s-5: 24px; --s-6: 32px; --s-7: 48px; --s-8: 64px; --s-9: 96px;

    --radius:   18px;
    --radius-s: 12px;
    --radius-l: 26px;
    --radius-pill: 999px;

    /* elevation on black is light, not shadow — a rim plus a lift */
    --rim:     inset 0 1px 0 rgba(255,255,255,.06);
    --lift-1:  0 1px 2px rgba(0,0,0,.6), 0 8px 24px -14px rgba(0,0,0,.9);
    --lift-2:  0 2px 6px rgba(0,0,0,.5), 0 22px 50px -24px rgba(0,0,0,.95);
    --glow:    0 14px 40px -18px rgba(99,102,241,.75);

    --maxw: 1160px;
    --ease: cubic-bezier(.22,.72,.28,1);
    --fast: .16s var(--ease);
    --slow: .32s var(--ease);
  }
}

/* ──────────────────────────────── BASE ──────────────────────────── */
@layer base {
  *, *::before, *::after { box-sizing: border-box; }
  * { margin: 0; }

  html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    scroll-padding-block-start: 84px;   /* sticky header clearance */
  }

  body {
    background: var(--bg);
    color: var(--ink);
    font-family: var(--font);
    font-size: var(--t-0);
    font-weight: var(--w-body);
    line-height: 1.62;
    letter-spacing: var(--track-body);
    font-feature-settings: 'cv02','cv03','cv04','ss01';
    font-optical-sizing: auto;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
    min-height: 100vh;
  }

  h1, h2, h3, h4 {
    font-weight: var(--w-head);
    line-height: 1.06;
    letter-spacing: var(--track-head);
    text-wrap: balance;               /* no orphaned words in headings */
  }
  h1 { font-size: var(--t-5); font-weight: var(--w-disp); letter-spacing: var(--track-disp); }
  h2 { font-size: var(--t-4); font-weight: var(--w-disp); letter-spacing: var(--track-disp); }
  h3 { font-size: var(--t-2); }
  h4 { font-size: var(--t--1); letter-spacing: var(--track-micro); text-transform: uppercase; color: var(--ink-3); }

  p { text-wrap: pretty; }            /* avoids ragged last lines */

  a { color: inherit; text-decoration: none; }
  a:hover { text-decoration: none; }

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

  ul, ol { list-style: none; padding: 0; }

  img, svg, canvas, video { display: block; max-width: 100%; }

  ::selection { background: var(--core); color: #fff; }

  :focus-visible {
    outline: 3px solid var(--ring);
    outline-offset: 3px;
    border-radius: var(--radius-s);
  }

  /* keyboard users land here first */
  .skip {
    position: absolute; inset-block-start: 0; inset-inline-start: 0; z-index: 999;
    clip-path: inset(50%); pointer-events: none;
    background: var(--core); color: #fff; padding: var(--s-3) var(--s-5);
    border-radius: 0 0 var(--radius-s) 0; font-weight: var(--w-em);
  }
  .skip:focus { clip-path: none; pointer-events: auto; }

  /* scrollbar tuned to the surface so it stops looking bolted on */
  * { scrollbar-color: var(--line-3) transparent; scrollbar-width: thin; }
  ::-webkit-scrollbar { width: 10px; height: 10px; }
  ::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: var(--radius-pill); }
  ::-webkit-scrollbar-thumb:hover { background: var(--line-3); }
  ::-webkit-scrollbar-track { background: transparent; }
}

/* ─────────────────────────────── LAYOUT ─────────────────────────── */
@layer layout {
  /* the live field sits under everything, at half strength */
  #bgfx {
    position: fixed; inset: 0;
    inline-size: 100vw; block-size: 100vh;
    z-index: 0; pointer-events: none;
    opacity: .5;
  }

  /* every band is a veil over the field, never an opaque slab */
  .nav, .hero, .stats, .sec, .band, .page-head, .level, .notice, footer, main {
    position: relative; z-index: 1;
  }
  .hero, .sec, .page-head, .level { background: color-mix(in srgb, var(--bg) 78%, transparent); }
  .stats { background: color-mix(in srgb, var(--surface) 86%, transparent); }
  .sec.how, .sec.oathsec { background: color-mix(in srgb, #000 62%, transparent); }
  .notice, footer { background: color-mix(in srgb, #000 74%, transparent); }
  @supports not (background: color-mix(in srgb, red 50%, transparent)) {
    .hero, .sec, .page-head, .level { background: rgba(7,7,10,.78); }
    .stats { background: rgba(14,14,19,.86); }
    .sec.how, .sec.oathsec { background: rgba(0,0,0,.62); }
    .notice, footer { background: rgba(0,0,0,.74); }
  }

  .wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--s-5); }
  .sec { padding-block: var(--s-9); }
  .sec-head { text-align: center; max-width: 66ch; margin-inline: auto; margin-block-end: var(--s-7); }
  .sec-head h2 { margin-block: var(--s-4) 0; }
  .sec-head p { color: var(--ink-2); font-size: var(--t-1); margin-block-start: var(--s-4); }

  .page-head { padding-block: clamp(56px,7vw,104px) var(--s-6); text-align: center; }
  .page-head h1 { font-size: var(--t-4); margin-inline: auto; max-width: 20ch; }
  .page-head p.sub { color: var(--ink-2); font-size: var(--t-1); max-width: 62ch; margin: var(--s-4) auto 0; }
  .crumb { font-size: var(--t--1); color: var(--ink-3); font-weight: var(--w-ui); }
  .crumb a { color: var(--spark); }
}

/* ───────────────────────────── COMPONENTS ───────────────────────── */
@layer components {

  /* ---------- navigation ---------- */
  .nav {
    position: sticky; top: 0; z-index: 50;
    background: color-mix(in srgb, var(--bg) 72%, transparent);
    -webkit-backdrop-filter: saturate(1.7) blur(20px);
    backdrop-filter: saturate(1.7) blur(20px);
    border-block-end: 1px solid var(--line);
  }
  .nav-inner { display: flex; align-items: center; justify-content: space-between; block-size: 68px; gap: var(--s-4); }
  .logo { display: flex; align-items: center; gap: var(--s-3); font-weight: var(--w-disp); font-size: var(--t-1); letter-spacing: -.02em; }
  .logo .mark {
    inline-size: 36px; block-size: 36px; border-radius: var(--radius-s);
    display: grid; place-items: center; flex: none;
    background: var(--grad); color: #fff; font-size: 18px; font-weight: 900;
    box-shadow: var(--glow), var(--rim);
  }
  .logo small {
    display: block; font-size: 9.5px; letter-spacing: var(--track-micro);
    text-transform: uppercase; color: var(--ink-3); font-weight: var(--w-em); margin-block-start: -2px;
  }
  .nav-links { display: flex; align-items: center; gap: var(--s-2); }
  .navlink {
    color: var(--ink-2); font-size: var(--t--1); font-weight: var(--w-ui);
    padding: var(--s-2) var(--s-3); border-radius: var(--radius-pill);
    transition: color var(--fast), background var(--fast);
  }
  .navlink:hover { color: var(--ink); background: rgba(255,255,255,.06); }
  .navlink.on { color: var(--ink); background: var(--grad-soft); }
  .nav-cta { display: flex; align-items: center; gap: var(--s-3); }
  .menu-btn { display: none; border: 1px solid var(--line-2); border-radius: var(--radius-s); padding: 10px; }
  .menu-btn span { display: block; inline-size: 20px; block-size: 2px; background: var(--ink); margin-block: 4px; border-radius: 2px; }
  .mobile-menu {
    display: none; flex-direction: column; gap: var(--s-1);
    padding: var(--s-3) var(--s-5) var(--s-5);
    border-block-end: 1px solid var(--line); background: var(--surface);
  }
  .mobile-menu a { padding: var(--s-3); color: var(--ink-2); font-weight: var(--w-ui); border-radius: var(--radius-s); }
  .mobile-menu a:hover { background: rgba(255,255,255,.06); color: var(--ink); }

  /* ---------- hero ---------- */
  .hero { padding-block: clamp(60px,8vw,110px) var(--s-8); text-align: center; overflow: hidden; }
  .hero .glow { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
  .hero .glow::before, .hero .glow::after {
    content: ''; position: absolute; border-radius: 50%; filter: blur(120px); opacity: .30;
  }
  .hero .glow::before { inline-size: 620px; block-size: 620px; background: radial-gradient(circle,var(--core),transparent 66%); top: -240px; left: 50%; transform: translateX(-72%); }
  .hero .glow::after  { inline-size: 540px; block-size: 540px; background: radial-gradient(circle,var(--spark),transparent 66%); top: -180px; left: 50%; transform: translateX(16%); }
  .hero h1 { margin: var(--s-5) auto 0; max-width: 15ch; }
  .hero p.sub { font-size: var(--t-1); color: var(--ink-2); max-width: 62ch; margin: var(--s-5) auto 0; }
  .hero-cta { display: flex; gap: var(--s-3); justify-content: center; flex-wrap: wrap; margin-block-start: var(--s-6); }
  .hero-note { margin-block-start: var(--s-4); font-size: var(--t--1); color: var(--ink-3); }

  .eyebrow {
    display: inline-flex; align-items: center; gap: var(--s-2);
    font-size: 11.5px; font-weight: var(--w-head); letter-spacing: var(--track-micro);
    text-transform: uppercase; color: var(--spark);
    padding: 7px 14px; border-radius: var(--radius-pill);
    background: var(--grad-soft); border: 1px solid var(--line-2);
  }
  .ig-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
  .glitch { color: var(--spark); }

  /* ---------- level rings ---------- */
  .rings { margin-block-start: var(--s-8); }
  .rings > p { font-size: 11.5px; letter-spacing: var(--track-micro); text-transform: uppercase; color: var(--ink-3); font-weight: var(--w-head); }
  .rings .row { display: flex; gap: clamp(12px,3vw,32px); justify-content: center; flex-wrap: wrap; margin-block-start: var(--s-5); }
  .ring { display: flex; flex-direction: column; align-items: center; gap: var(--s-2); inline-size: 88px; }
  .ring .circ { inline-size: 78px; block-size: 78px; border-radius: 50%; padding: 3px; background: var(--grad); transition: transform var(--slow); }
  .ring:hover .circ { transform: scale(1.07) rotate(3deg); }
  .ring .circ i {
    display: grid; place-items: center; inline-size: 100%; block-size: 100%;
    border-radius: 50%; background: var(--bg); border: 3px solid var(--bg);
    font-style: normal; font-size: 30px;
  }
  .ring b { font-size: var(--t--1); font-weight: var(--w-em); color: var(--ink-2); }

  /* ---------- stats ---------- */
  .stats { border-block: 1px solid var(--line); }
  .stats .grid { max-width: var(--maxw); margin-inline: auto; display: grid; grid-template-columns: repeat(4,1fr); }
  .stat { padding: var(--s-7) var(--s-4); text-align: center; border-inline-end: 1px solid var(--line); }
  .stat:last-child { border-inline-end: 0; }
  .stat b {
    display: block; font-size: var(--t-3); font-weight: var(--w-disp);
    letter-spacing: var(--track-disp); font-variant-numeric: tabular-nums;
    background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
  }
  .stat span { font-size: var(--t--1); color: var(--ink-3); font-weight: var(--w-ui); }

  /* ---------- surfaces: one card recipe, reused everywhere ---------- */
  .card, .inc, .step, .oath, .tier, .plan, .pack, .branch,
  .linkbuilder, .rows, .q, form, .chapter {
    position: relative; overflow: hidden;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--rim), var(--lift-1);
  }
  /* the same field as the background, in CSS, fading from one corner */
  .card::before, .inc::before, .step::before, .oath::before, .tier::before,
  .plan::before, .pack::before, .branch::before, .linkbuilder::before {
    content: ''; position: absolute; inset: 0; z-index: 0; pointer-events: none;
    background-image:
      repeating-linear-gradient(0deg,  rgba(255,255,255,.9) 0 1px, transparent 1px 15px),
      repeating-linear-gradient(90deg, rgba(255,255,255,.9) 0 1px, transparent 1px 15px);
    opacity: .045;
    -webkit-mask-image: radial-gradient(130% 105% at 100% 0%, #000 0%, transparent 70%);
    mask-image: radial-gradient(130% 105% at 100% 0%, #000 0%, transparent 70%);
    transition: opacity var(--slow);
  }
  .card > *, .inc > *, .step > *, .oath > *, .tier > *,
  .plan > *, .pack > *, .linkbuilder > * { position: relative; z-index: 1; }

  .card, .inc, .step, .oath, .tier, .plan, .pack, .chapter { text-align: center; }
  .card { padding: var(--s-6); transition: transform var(--slow), border-color var(--slow), box-shadow var(--slow); }
  .card:hover, .inc:hover, .step:hover, .tier:hover, .plan:hover {
    transform: translateY(-4px); border-color: var(--line-2); box-shadow: var(--rim), var(--lift-2);
  }
  .card:hover::before, .inc:hover::before, .step:hover::before,
  .tier:hover::before, .plan:hover::before { opacity: .085; }

  .card .ico, .inc .ic, .oath .rune {
    inline-size: 56px; block-size: 56px; border-radius: var(--radius-s);
    display: grid; place-items: center; font-size: 26px;
    background: var(--grad-soft); border: 1px solid var(--line-2);
    margin: 0 auto var(--s-4);
  }
  .oath .rune, .inc .ic { font-size: 24px; }
  .card h3 { font-size: var(--t-2); }
  .card p, .inc p, .step p, .oath p { color: var(--ink-2); font-size: var(--t--1); margin-block-start: var(--s-2); }
  .card ul, .plan ul, .tier ul { display: grid; gap: var(--s-2); margin-block-start: var(--s-4); }
  .card ul li, .plan ul li, .tier li { font-size: var(--t--1); color: var(--ink-2); }
  .card ul li::before, .plan ul li::before, .tier li::before {
    content: '✦'; display: inline-block; margin-inline-end: 7px;
    background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
    font-weight: var(--w-head);
  }
  .card .tag {
    display: inline-block; margin: 0 auto var(--s-4);
    font-size: 10.5px; font-weight: var(--w-head); letter-spacing: .08em; text-transform: uppercase;
    color: #fff; padding: 5px 12px; border-radius: var(--radius-pill); background: var(--grad);
  }
  .card.dark { background: #000; border-color: var(--line-2); }

  .offer-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(290px,1fr)); gap: var(--s-5); }
  .steps { display: grid; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); gap: var(--s-5); }
  .step, .oath, .tier { padding: var(--s-6); }
  .step .n { font-size: 11.5px; font-weight: var(--w-head); letter-spacing: var(--track-micro); color: var(--spark); }
  .step h3 { font-size: var(--t-1); margin-block: var(--s-3) var(--s-2); }
  .oaths { display: grid; grid-template-columns: repeat(auto-fit,minmax(280px,1fr)); gap: var(--s-5); }
  .oath h3, .oath .sub-h { font-size: var(--t-1); margin-block: var(--s-3) var(--s-2); letter-spacing: var(--track-head); }
  .inc-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(220px,1fr)); gap: var(--s-4); }
  .inc { padding: var(--s-5); }
  .inc b { display: block; margin-block: var(--s-3) var(--s-1); font-size: var(--t-0); font-weight: var(--w-em); }

  /* ---------- buttons: one bevel recipe ---------- */
  .btn, .btn-sm, .buy {
    display: inline-flex; align-items: center; justify-content: center; gap: var(--s-2);
    font-weight: var(--w-em); border-radius: var(--radius-pill);
    border: 1px solid transparent; white-space: nowrap; cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    transition: transform var(--fast), box-shadow var(--slow), background var(--slow),
                border-color var(--slow), filter var(--slow), color var(--slow);
  }
  .btn { font-size: var(--t-0); padding: 14px 26px; min-block-size: 48px; }
  .btn-sm, .buy { font-size: var(--t--1); padding: 10px 18px; min-block-size: 40px; }

  .btn-primary, .btn-sm:not(.ghost):not(.dead), .buy:not(.dead) {
    background: var(--grad); color: #fff; border-color: rgba(255,255,255,.22);
    box-shadow:
      inset 0 1px 0 rgba(255,255,255,.45),
      inset 0 -1px 0 rgba(0,0,0,.35),
      0 1px 2px rgba(0,0,0,.6),
      var(--glow);
    text-shadow: 0 1px 1px rgba(0,0,0,.35);
  }
  .btn-primary:hover, .btn-sm:not(.ghost):not(.dead):hover, .buy:not(.dead):hover {
    transform: translateY(-2px); filter: saturate(1.1) brightness(1.07);
    box-shadow: inset 0 1px 0 rgba(255,255,255,.55), inset 0 -1px 0 rgba(0,0,0,.35),
                0 2px 6px rgba(0,0,0,.6), 0 20px 46px -16px rgba(192,38,211,.7);
  }
  .btn-primary:active, .btn-sm:not(.ghost):not(.dead):active, .buy:not(.dead):active {
    transform: translateY(1px) scale(.99); filter: none;
    box-shadow: inset 0 2px 6px rgba(0,0,0,.55), inset 0 1px 0 rgba(255,255,255,.12);
  }
  .btn-ghost, .btn-sm.ghost {
    background: linear-gradient(180deg, var(--surface-2), var(--surface));
    color: var(--ink); border-color: var(--line-2); box-shadow: var(--rim), var(--lift-1);
  }
  .btn-ghost:hover, .btn-sm.ghost:hover { border-color: var(--core); color: #fff; transform: translateY(-2px); }
  .btn-ghost:active, .btn-sm.ghost:active { transform: translateY(1px) scale(.99); box-shadow: inset 0 2px 6px rgba(0,0,0,.6); }
  .btn-dark { background: linear-gradient(180deg,var(--surface-3),#000); color: var(--ink); border-color: var(--line-2); box-shadow: var(--rim), var(--lift-1); }
  .btn-block { inline-size: 100%; }
  .btn-sm.dead, .buy.dead {
    background: var(--surface-2); color: var(--ink-4); border-color: var(--line);
    cursor: default; pointer-events: none; box-shadow: none;
  }

  /* ---------- badges & chips ---------- */
  .badge {
    font-size: 10.5px; font-weight: var(--w-head); letter-spacing: .07em;
    text-transform: uppercase; padding: 4px 10px; border-radius: var(--radius-pill);
  }
  .badge.free { background: rgba(52,211,153,.14); color: var(--mint); }
  .badge.live { background: var(--grad-soft); color: var(--spark); }
  .badge.soon { background: rgba(255,255,255,.06); color: var(--ink-3); }
  .badge.flag { background: var(--grad); color: #fff; }
  .pillbox {
    font-size: var(--t--1); font-weight: var(--w-ui); color: var(--ink-2);
    background: var(--surface-2); border: 1px solid var(--line-2);
    border-radius: var(--radius-pill); padding: 6px 14px;
  }

  /* ---------- catalogue rows ---------- */
  .level { padding-block: var(--s-6) var(--s-2); }
  .level-head { display: flex; align-items: baseline; gap: var(--s-3); flex-wrap: wrap; justify-content: center; }
  .level-head .no { font-size: 11.5px; font-weight: var(--w-head); letter-spacing: var(--track-micro); text-transform: uppercase; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
  .level-head h2 { font-size: var(--t-2); }
  .level-head .tag { font-size: var(--t--1); color: var(--ink-3); }
  .level-blurb { color: var(--ink-2); font-size: var(--t--1); margin: var(--s-3) auto var(--s-5); max-width: 72ch; text-align: center; }

  .rows { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .row-item {
    display: flex; flex-direction: column; align-items: center; text-align: center;
    gap: var(--s-3); padding: var(--s-5); border-block-end: 1px solid var(--line);
    transition: background var(--fast);
  }
  .row-item:last-child { border-block-end: 0; }
  .row-item:hover { background: rgba(255,255,255,.03); }
  .row-art {
    inline-size: 60px; block-size: 60px; border-radius: var(--radius-s); flex: none;
    display: grid; place-items: center; font-size: 27px;
    box-shadow: var(--lift-1), inset 0 0 0 1px rgba(255,255,255,.16);
  }
  .row-main { flex: 1; min-inline-size: 0; }
  .row-title { display: flex; align-items: center; justify-content: center; gap: var(--s-2); flex-wrap: wrap; font-weight: var(--w-em); font-size: var(--t-1); letter-spacing: -.015em; }
  .row-title a:hover { color: var(--spark); }
  .row-title .n { color: var(--ink-4); font-weight: var(--w-ui); font-size: var(--t--1); font-variant-numeric: tabular-nums; }
  .row-desc { color: var(--ink-2); font-size: var(--t--1); margin-block-start: var(--s-1); max-width: 68ch; margin-inline: auto; }
  .row-meta { color: var(--ink-4); font-size: 12px; margin-block-start: var(--s-2); }
  .row-side { display: flex; align-items: center; justify-content: center; gap: var(--s-3); flex-wrap: wrap; }
  .row-price { font-weight: var(--w-head); font-size: var(--t-1); font-variant-numeric: tabular-nums; }
  .mini { font-size: var(--t--1); font-weight: var(--w-ui); color: var(--spark); }

  /* ---------- pricing ---------- */
  .price-grid, .pack-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); gap: var(--s-5); align-items: stretch; }
  .plan, .pack { padding: var(--s-6); display: flex; flex-direction: column; gap: var(--s-2); }
  .plan.featured, .pack.hero-pack {
    border-color: transparent;
    background: linear-gradient(var(--surface),var(--surface)) padding-box, var(--grad) border-box;
    border: 2px solid transparent; box-shadow: var(--rim), var(--lift-2), var(--glow);
  }
  .plan.featured::after {
    content: 'Most complete'; position: absolute; inset-block-start: -1px; inset-inline: 0;
    margin-inline: auto; inline-size: max-content;
    background: var(--grad); color: #fff; font-size: 10.5px; font-weight: var(--w-head);
    letter-spacing: .08em; text-transform: uppercase; padding: 5px 14px;
    border-radius: 0 0 var(--radius-s) var(--radius-s);
  }
  .plan h3, .pack .p-name { font-size: var(--t-1); font-weight: var(--w-head); }
  .plan .desc, .pack .p-has { color: var(--ink-2); font-size: var(--t--1); flex: 1; }
  .plan .amt, .pack .p-price { font-size: var(--t-3); font-weight: var(--w-disp); letter-spacing: var(--track-disp); margin-block: var(--s-4) 0; font-variant-numeric: tabular-nums; }
  .plan .amt small, .pack .p-price .was { font-size: var(--t--1); font-weight: var(--w-ui); color: var(--ink-4); }
  .pack .p-price .was { text-decoration: line-through; margin-inline-end: var(--s-2); }
  .plan .per { font-size: 12px; color: var(--ink-4); }
  .plan .btn, .pack .btn-sm { margin-block-start: auto; }
  .no-sub { text-align: center; margin-block: calc(var(--s-6) * -1) var(--s-7); color: var(--ink-2); font-weight: var(--w-ui); }
  .no-sub b { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
  .price-big { font-size: var(--t-3); font-weight: var(--w-disp); letter-spacing: var(--track-disp); }
  .crypto-price {
    display: inline-block; margin-inline-start: var(--s-3); font-size: var(--t--1); font-weight: var(--w-em);
    color: var(--mint); background: rgba(52,211,153,.12); border: 1px solid rgba(52,211,153,.28);
    border-radius: var(--radius-pill); padding: 5px 12px; vertical-align: middle;
  }

  /* ---------- course detail ---------- */
  .detail { padding-block: var(--s-8) var(--s-6); }
  .detail .wrap { display: flex; gap: var(--s-7); flex-wrap: wrap; align-items: center; justify-content: center; text-align: center; }
  .detail-art {
    inline-size: clamp(140px,18vw,200px); aspect-ratio: 1; border-radius: var(--radius-l);
    display: grid; place-items: center; font-size: clamp(54px,7vw,80px);
    box-shadow: var(--lift-2), 0 24px 60px -26px rgba(99,102,241,.8), inset 0 0 0 1px rgba(255,255,255,.18);
  }
  .detail-copy { flex: 1; min-inline-size: 280px; text-align: center; }
  .detail-copy h1 { font-size: var(--t-4); margin-block: var(--s-3); }
  .detail-copy .lede { color: var(--ink-2); font-size: var(--t-1); max-width: 58ch; margin-inline: auto; }
  .detail-meta { display: flex; gap: var(--s-2); flex-wrap: wrap; justify-content: center; align-items: center; margin-block: var(--s-5); }
  .detail-actions { display: flex; gap: var(--s-3); flex-wrap: wrap; justify-content: center; align-items: center; }

  .chapters { display: grid; gap: var(--s-2); }
  .chapter { flex-direction: column; align-items: center; gap: var(--s-2); padding: var(--s-4) var(--s-5); border-radius: var(--radius-s); }
  .chapter .cn { font-variant-numeric: tabular-nums; font-weight: var(--w-head); color: var(--ink-4); font-size: var(--t--1); }
  .chapter b { display: block; font-size: var(--t-0); font-weight: var(--w-em); }
  .chapter p { color: var(--ink-2); font-size: var(--t--1); margin-block-start: var(--s-1); }
  .chapter.free { border-color: rgba(52,211,153,.32); }
  .chapter .freetag, .chapter .locktag {
    font-size: 10px; font-weight: var(--w-head); letter-spacing: .06em;
    border-radius: var(--radius-pill); padding: 3px 10px;
  }
  .chapter .freetag { color: var(--mint); background: rgba(52,211,153,.12); }
  .chapter .locktag { color: var(--ink-4); background: rgba(255,255,255,.05); }
  .nextprev { display: flex; justify-content: center; gap: var(--s-6); flex-wrap: wrap; padding-block-start: var(--s-7); border-block-start: 1px solid var(--line); }
  .nextprev a { font-weight: var(--w-em); font-size: var(--t--1); color: var(--ink-2); }
  .nextprev a:hover { color: var(--spark); }

  /* ---------- payment tree ---------- */
  .paytree { max-width: 780px; margin-inline: auto; display: grid; gap: var(--s-3); text-align: start; }
  .branch.accent { border-color: transparent; background: linear-gradient(var(--surface),var(--surface)) padding-box, var(--grad) border-box; border: 2px solid transparent; }
  .branch summary {
    display: flex; align-items: center; gap: var(--s-3); padding: var(--s-4) var(--s-5);
    cursor: pointer; list-style: none; font-weight: var(--w-em); font-size: var(--t-0);
    position: relative; z-index: 1; min-block-size: 48px;
  }
  .branch summary::-webkit-details-marker { display: none; }
  .branch summary:hover { background: rgba(255,255,255,.04); }
  .twig { inline-size: 10px; block-size: 10px; border-inline-start: 2px solid var(--line-2); border-block-end: 2px solid var(--line-2); border-end-start-radius: 3px; flex: none; }
  .branch-name { flex: 1; letter-spacing: -.02em; }
  .branch-count { font-size: 11px; color: var(--ink-3); background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--radius-pill); padding: 3px 10px; font-variant-numeric: tabular-nums; }
  .caret { color: var(--ink-3); font-size: 12px; transition: transform var(--slow); }
  .branch[open] .caret { transform: rotate(180deg); }
  .branch-body { padding: 0 var(--s-5) var(--s-5) 44px; position: relative; z-index: 1; }
  .branch-blurb { color: var(--ink-2); font-size: var(--t--1); margin-block-end: var(--s-4); text-align: start; }
  .leaves { display: grid; grid-template-columns: repeat(auto-fill,minmax(172px,1fr)); gap: var(--s-2); border-inline-start: 1px dashed var(--line-2); padding-inline-start: var(--s-4); }
  .leaf {
    display: flex; align-items: center; gap: var(--s-2); font-size: var(--t--1);
    color: var(--ink-2); font-weight: var(--w-ui); background: var(--surface-2);
    border: 1px solid var(--line); border-radius: 10px; padding: 9px 12px; position: relative;
  }
  .leaf::before { content: ''; position: absolute; inset-inline-start: -16px; top: 50%; inline-size: 12px; block-size: 1px; background: var(--line-2); }
  .leaf em { font-style: normal; font-size: 10.5px; color: var(--ink-4); margin-inline-start: auto; }

  /* ---------- tables ---------- */
  .paytable { inline-size: 100%; border-collapse: collapse; font-size: var(--t--1); min-inline-size: 420px; }
  .paytable th {
    text-align: start; font-size: 10.5px; letter-spacing: .09em; text-transform: uppercase;
    color: var(--ink-4); padding: var(--s-4) var(--s-5); border-block-end: 1px solid var(--line); font-weight: var(--w-head);
  }
  .paytable td { padding: var(--s-3) var(--s-5); border-block-end: 1px solid var(--line); color: var(--ink-2); font-variant-numeric: tabular-nums; text-align: start; }
  .paytable tr:last-child td { border-block-end: 0; }
  .paytable td:first-child { color: var(--ink); font-weight: var(--w-em); }
  .paytable td.ok { color: var(--mint); font-weight: var(--w-head); }

  /* ---------- affiliate tiers ---------- */
  .tiers { display: grid; grid-template-columns: repeat(auto-fit,minmax(250px,1fr)); gap: var(--s-4); }
  .tier-head { display: flex; align-items: baseline; justify-content: center; gap: var(--s-2); margin-block-end: var(--s-3); flex-wrap: wrap; }
  .tier-n { font-size: 10.5px; font-weight: var(--w-head); letter-spacing: .08em; text-transform: uppercase; color: #fff; background: var(--grad); border-radius: var(--radius-pill); padding: 5px 11px; font-variant-numeric: tabular-nums; }
  .tier-head h3 { font-size: var(--t-1); }
  .linkbuilder { max-width: 580px; margin-inline: auto; padding: var(--s-6); }
  .linkbuilder .field input[readonly] { background: var(--bg); color: var(--ink-2); font-family: var(--mono); font-size: 12.5px; }

  /* ---------- forms ---------- */
  form { padding: var(--s-6); }
  .field { margin-block-end: var(--s-4); text-align: start; }
  .field label { display: block; font-size: 12px; font-weight: var(--w-em); color: var(--ink-3); margin-block-end: var(--s-2); letter-spacing: .04em; }
  .field input, .field select, .field textarea {
    inline-size: 100%; background: var(--bg); border: 1px solid var(--line-2);
    border-radius: var(--radius-s); padding: 13px 15px; font-size: var(--t-0);
    transition: border-color var(--fast), box-shadow var(--fast);
    min-block-size: 48px;
  }
  .field input::placeholder, .field textarea::placeholder { color: var(--ink-4); }
  .field input:focus, .field select:focus, .field textarea:focus {
    outline: none; border-color: var(--core); box-shadow: 0 0 0 3px rgba(99,102,241,.22);
  }
  .field textarea { resize: vertical; min-block-size: 120px; }
  .form-msg { margin-block-start: var(--s-3); font-size: var(--t--1); font-weight: var(--w-em); color: var(--mint); display: none; }

  .contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-7); align-items: start; text-align: center; }
  .contact-grid h2 { font-size: var(--t-3); }
  .contact-grid p.lead { color: var(--ink-2); font-size: var(--t-0); margin-block-start: var(--s-4); }
  .contact-list { margin-block-start: var(--s-5); display: grid; gap: var(--s-3); }
  .contact-list a, .contact-list div { display: flex; gap: var(--s-3); align-items: center; justify-content: center; color: var(--ink-2); font-size: var(--t--1); }
  .contact-list .ic { inline-size: 44px; block-size: 44px; border-radius: var(--radius-s); background: var(--grad-soft); border: 1px solid var(--line-2); display: grid; place-items: center; font-size: 18px; flex: none; }

  /* ---------- FAQ / accordions ---------- */
  .faq { max-width: 840px; margin-inline: auto; display: grid; gap: var(--s-3); }
  .q { border-radius: var(--radius-s); }
  .q button { inline-size: 100%; text-align: start; padding: var(--s-5); font-size: var(--t-0); font-weight: var(--w-em); display: flex; justify-content: space-between; align-items: center; gap: var(--s-4); min-block-size: 56px; }
  .q button .plus { flex: none; font-size: 20px; color: var(--spark); transition: transform var(--slow); }
  .q.open button .plus { transform: rotate(45deg); }
  .q .a { max-block-size: 0; overflow: hidden; transition: max-block-size var(--slow); }
  .q .a p { padding: 0 var(--s-5) var(--s-5); color: var(--ink-2); font-size: var(--t--1); }

  /* ---------- CTA band ---------- */
  .band { margin-inline: var(--s-5); }
  .band .inner {
    max-width: var(--maxw); margin-inline: auto; border-radius: var(--radius-l);
    padding: clamp(48px,6vw,76px) var(--s-6); text-align: center; position: relative; overflow: hidden;
    background: var(--grad); color: #fff;
    box-shadow: 0 34px 90px -34px rgba(99,102,241,.85), var(--rim);
  }
  .band .inner::before {
    content: ''; position: absolute; inset: 0; pointer-events: none;
    background-image:
      repeating-linear-gradient(0deg,  rgba(255,255,255,.9) 0 1px, transparent 1px 15px),
      repeating-linear-gradient(90deg, rgba(255,255,255,.9) 0 1px, transparent 1px 15px);
    opacity: .10;
    -webkit-mask-image: radial-gradient(120% 100% at 0% 100%, #000 0%, transparent 68%);
    mask-image: radial-gradient(120% 100% at 0% 100%, #000 0%, transparent 68%);
  }
  .band .inner > * { position: relative; z-index: 1; }
  .band h2 { max-width: 22ch; margin-inline: auto; color: #fff; }
  .band p { color: rgba(255,255,255,.9); font-size: var(--t-1); margin: var(--s-4) auto 0; max-width: 56ch; }
  .band .eyebrow { background: rgba(255,255,255,.16); color: #fff; border-color: rgba(255,255,255,.28); }
  .band .btn-primary { background: #fff; color: var(--core); text-shadow: none; box-shadow: var(--lift-2); }
  .band .btn-ghost { background: rgba(255,255,255,.14); border-color: rgba(255,255,255,.42); color: #fff; }

  /* ---------- notice strip ---------- */
  .notice { padding-block: var(--s-4); border-block: 1px solid var(--line); }
  .notice .wrap { display: flex; gap: var(--s-3); align-items: center; justify-content: center; flex-wrap: wrap; font-size: var(--t--1); color: var(--ink-2); text-align: center; }
  .notice b { color: var(--ink); }

  /* ---------- prose ---------- */
  .prose-block { text-align: center; }
  .prose-block h3, .prose-block .sub-h { font-size: var(--t-1); margin-block: var(--s-5) var(--s-2); letter-spacing: var(--track-head); }
  .prose-block p { color: var(--ink-2); font-size: var(--t-0); margin-block-end: var(--s-3); }
  .rulelist { display: grid; gap: var(--s-3); }
  .rulelist li { font-size: var(--t-0); color: var(--ink-2); }
  .rulelist li::before { content: '→'; display: inline-block; margin-inline-end: var(--s-2); color: var(--spark); font-weight: var(--w-head); }

  /* ---------- footer ---------- */
  footer { border-block-start: 1px solid var(--line); }
  .foot { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: var(--s-6); padding-block: var(--s-8) var(--s-6); text-align: center; }
  .foot .logo { justify-content: center; margin-block-end: var(--s-4); }
  .foot p { color: var(--ink-4); font-size: var(--t--1); max-width: 36ch; margin-inline: auto; }
  .foot h4, .foot .foot-h {
    font-size: var(--t--1); font-weight: var(--w-head);
    letter-spacing: var(--track-micro); text-transform: uppercase;
    color: var(--ink-3); line-height: 1.4; margin-block-end: var(--s-4);
  }
  .foot ul { display: grid; gap: var(--s-2); }
  .foot ul a { color: var(--ink-3); font-size: var(--t--1); }
  .foot ul a:hover { color: var(--ink); }
  .foot-bottom { border-block-start: 1px solid var(--line); padding-block: var(--s-5); display: flex; justify-content: center; flex-wrap: wrap; gap: var(--s-3); color: var(--ink-4); font-size: 12.5px; text-align: center; }
  .glitch-wm { font-weight: var(--w-disp); color: var(--ink); }

  /* ---------- ask me anything ---------- */
  .ama-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: var(--s-7); align-items: start; }
  .ama-list { display: grid; gap: var(--s-3); text-align: start; }
  .ama-item { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: var(--s-5); box-shadow: var(--rim), var(--lift-1); }
  .ama-q { font-weight: var(--w-em); font-size: var(--t-0); display: flex; gap: var(--s-3); align-items: flex-start; }
  .ama-q::before { content: 'Q'; flex: none; inline-size: 26px; block-size: 26px; border-radius: 8px; display: grid; place-items: center; font-size: 12px; font-weight: var(--w-head); background: var(--grad); color: #fff; }
  .ama-a { color: var(--ink-2); font-size: var(--t--1); margin-block-start: var(--s-3); padding-inline-start: 38px; }
  .ama-meta { font-size: 11.5px; color: var(--ink-4); margin-block-start: var(--s-3); padding-inline-start: 38px; }
  .ama-empty { border: 1px dashed var(--line-2); border-radius: var(--radius); padding: var(--s-7) var(--s-5); text-align: center; color: var(--ink-3); background: color-mix(in srgb, var(--surface) 60%, transparent); }
  .ama-empty b { display: block; color: var(--ink); font-size: var(--t-1); margin-block-end: var(--s-2); font-weight: var(--w-head); }
}

/* ─────────────────────────────── UTILITIES ──────────────────────── */
@layer utilities {
  .center { text-align: center; }
  .visually-hidden {
    position: absolute; inline-size: 1px; block-size: 1px;
    padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap;
  }

  @media (max-width: 1080px) {
    .nav-links { display: none; }
    .menu-btn { display: block; }
    .nav-cta .btn-ghost { display: none; }
  }
  @media (max-width: 900px) {
    .menu-btn { display: block; }
    .nav-cta .btn-ghost { display: none; }
    .stats .grid { grid-template-columns: repeat(2,1fr); }
    .stat:nth-child(2) { border-inline-end: 0; }
    .contact-grid, .ama-grid { grid-template-columns: 1fr; }
    .foot { grid-template-columns: 1fr 1fr; }
    .plan.featured { order: -1; }
  }
  @media (max-width: 640px) {
    .wrap { padding-inline: var(--s-4); }
    .sec { padding-block: var(--s-8); }
    .btn { inline-size: 100%; }
    .hero-cta, .detail-actions { flex-direction: column; align-items: stretch; }
    .foot { grid-template-columns: 1fr; }
    .leaves { grid-template-columns: 1fr; }
    .branch-body { padding-inline-start: var(--s-6); }
    .band { margin-inline: var(--s-4); }
    .ring { inline-size: 74px; }
    .ring .circ { inline-size: 66px; block-size: 66px; }
    .price-big { display: block; margin-block-end: var(--s-3); }
    .crypto-price { margin-inline-start: 0; }
    #bgfx { opacity: .44; }
  }
  @media (max-width: 380px) {
    .stats .grid { grid-template-columns: 1fr; }
    .stat { border-inline-end: 0; border-block-end: 1px solid var(--line); }
  }

  @media print {
    #bgfx, .nav, .mobile-menu, .band, .skip { display: none !important; }
    body { background: #fff; color: #000; }
    .card, .inc, .step, .oath, .tier, .plan { box-shadow: none; border-color: #ccc; }
    a[href^="http"]::after { content: ' (' attr(href) ')'; font-size: .8em; color: #555; }
  }
}

/* ──────────────────────────────── MOTION ────────────────────────── */
@layer motion {
  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
      animation-duration: .01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: .01ms !important;
    }
    .card:hover, .inc:hover, .step:hover, .tier:hover, .plan:hover,
    .btn:hover, .btn-sm:hover, .buy:hover, .ring:hover .circ { transform: none; }
  }
  /* high-contrast users get harder edges, not softer ones */
  @media (prefers-contrast: more) {
    :root { --line: rgba(255,255,255,.24); --line-2: rgba(255,255,255,.4); --ink-2: #dfe3ea; --ink-3: #b6bcc9; }
    #bgfx { opacity: .3; }
  }
}

/* ══════════════════════════════════════════════════════════════════
   CATALOG — filter rail + floating card grid
   ══════════════════════════════════════════════════════════════════ */
@layer components {
  .catalog { padding-block: var(--s-7) var(--s-9); }
  .catalog-shell { display: grid; grid-template-columns: 232px 1fr; gap: var(--s-6); align-items: start; }

  /* filter rail */
  .rail { position: sticky; top: 88px; }
  .rail-toggle { display: none; }
  .rail-body { display: grid; gap: var(--s-5); }
  .rail-group { display: grid; gap: var(--s-2); }
  .rail-h {
    font-size: 10.5px; font-weight: var(--w-head); letter-spacing: var(--track-micro);
    text-transform: uppercase; color: var(--ink-4); line-height: 1.4; margin-block-end: var(--s-1);
  }
  .rail-group ul { display: grid; gap: 2px; }
  .filt {
    inline-size: 100%; display: flex; align-items: center; justify-content: space-between; gap: var(--s-2);
    padding: 9px 12px; border-radius: 10px; font-size: var(--t--1); font-weight: var(--w-ui);
    color: var(--ink-2); text-align: start; border: 1px solid transparent;
    transition: background var(--fast), color var(--fast), border-color var(--fast);
    min-block-size: 40px;
  }
  .filt:hover { background: rgba(255,255,255,.05); color: var(--ink); }
  .filt.on { background: var(--grad-soft); color: var(--ink); border-color: var(--line-2); }
  .filt-n { font-size: 11px; color: var(--ink-4); font-variant-numeric: tabular-nums; }
  .filt.on .filt-n { color: var(--spark); }

  /* toolbar */
  .catalog-bar {
    display: flex; align-items: center; gap: var(--s-3); flex-wrap: wrap;
    margin-block-end: var(--s-5); padding-block-end: var(--s-4);
    border-block-end: 1px solid var(--line);
  }
  .csearch { flex: 1 1 220px; }
  .csearch input {
    inline-size: 100%; background: var(--surface); border: 1px solid var(--line-2);
    border-radius: var(--radius-pill); padding: 11px 18px; font-size: var(--t--1);
    min-block-size: 44px; transition: border-color var(--fast), box-shadow var(--fast);
  }
  .csearch input:focus { outline: none; border-color: var(--core); box-shadow: 0 0 0 3px rgba(99,102,241,.22); }
  .catalog-count { font-size: var(--t--1); color: var(--ink-3); font-variant-numeric: tabular-nums; white-space: nowrap; }
  .csort select {
    background: var(--surface); border: 1px solid var(--line-2); border-radius: var(--radius-pill);
    padding: 11px 16px; font-size: var(--t--1); min-block-size: 44px; color: var(--ink-2);
  }

  /* the grid — square-art tiles, tight rhythm */
  .cgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(196px, 1fr)); gap: var(--s-4); }

  .ccard {
    position: relative; display: flex; flex-direction: column;
    background: linear-gradient(180deg, var(--surface-2), var(--surface));
    border: 1px solid var(--line); border-radius: var(--radius);
    /* depth in three parts: contact shadow, mid lift, far ambient */
    box-shadow:
      inset 0 1px 0 rgba(255,255,255,.07),
      0 1px 2px rgba(0,0,0,.7),
      0 10px 20px -12px rgba(0,0,0,.9),
      0 28px 56px -28px rgba(0,0,0,1);
    transition: transform var(--slow), box-shadow var(--slow), border-color var(--slow);
    overflow: hidden; isolation: isolate;
  }
  .ccard::after {                       /* cast shadow on the floor beneath */
    content: ''; position: absolute; inset-inline: 12%; bottom: -14px; block-size: 22px;
    background: radial-gradient(60% 100% at 50% 0%, rgba(0,0,0,.85), transparent 72%);
    filter: blur(9px); opacity: 0; transition: opacity var(--slow), transform var(--slow);
    z-index: -1; pointer-events: none;
  }
  .ccard:hover, .ccard:focus-within {
    transform: translateY(-7px);
    border-color: var(--line-2);
    box-shadow:
      inset 0 1px 0 rgba(255,255,255,.12),
      0 2px 4px rgba(0,0,0,.7),
      0 20px 34px -14px rgba(0,0,0,.95),
      0 46px 90px -36px rgba(99,102,241,.55);
  }
  .ccard:hover::after, .ccard:focus-within::after { opacity: 1; transform: scaleX(1.06); }

  .ccard-link { display: block; }
  .ccard-thumb {
    position: relative; display: grid; place-items: center;
    aspect-ratio: 1; inline-size: 100%; overflow: hidden;
    border-block-end: 1px solid var(--line);
  }
  .ccard-thumb::before {                /* the attention field, inside the art */
    content: ''; position: absolute; inset: 0;
    background-image:
      repeating-linear-gradient(0deg,  rgba(255,255,255,.9) 0 1px, transparent 1px 13px),
      repeating-linear-gradient(90deg, rgba(255,255,255,.9) 0 1px, transparent 1px 13px);
    opacity: .13;
    -webkit-mask-image: radial-gradient(120% 100% at 100% 0%, #000 0%, transparent 72%);
    mask-image: radial-gradient(120% 100% at 100% 0%, #000 0%, transparent 72%);
  }
  .ccard-thumb::after {                 /* glass sheen along the top edge */
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(165deg, rgba(255,255,255,.30), transparent 46%);
    pointer-events: none;
  }
  .ccard-emoji {
    font-size: clamp(44px, 6vw, 62px); line-height: 1; position: relative; z-index: 1;
    filter: drop-shadow(0 6px 14px rgba(0,0,0,.45));
    transition: transform var(--slow);
  }
  .ccard:hover .ccard-emoji { transform: scale(1.09) rotate(-3deg); }
  .ccard-n {
    position: absolute; inset-block-start: 10px; inset-inline-start: 10px; z-index: 2;
    font-size: 10.5px; font-weight: var(--w-head); letter-spacing: .06em;
    color: rgba(255,255,255,.92); background: rgba(0,0,0,.42);
    border: 1px solid rgba(255,255,255,.24); border-radius: var(--radius-pill);
    padding: 3px 9px; font-variant-numeric: tabular-nums;
    -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  }
  .ccard-thumb .badge {
    position: absolute; inset-block-start: 10px; inset-inline-end: 10px; z-index: 2;
    -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
    border: 1px solid rgba(255,255,255,.22);
  }
  .ccard-body { display: block; padding: var(--s-4) var(--s-4) var(--s-2); text-align: center; }
  .ccard-title {
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
    font-size: var(--t-0); font-weight: var(--w-em); line-height: 1.3;
    letter-spacing: -.018em; min-block-size: 2.6em;
  }
  .ccard:hover .ccard-title { color: #fff; }
  .ccard-by { display: block; font-size: 11.5px; color: var(--ink-4); margin-block-start: var(--s-1); }
  .ccard-foot {
    display: flex; align-items: center; justify-content: space-between; gap: var(--s-2);
    padding: var(--s-2) var(--s-4) var(--s-4); margin-block-start: auto;
  }
  .ccard-price {
    font-size: var(--t-0); font-weight: var(--w-head); font-variant-numeric: tabular-nums;
    display: flex; flex-direction: column; align-items: flex-start; line-height: 1.15;
  }
  .ccard-price em { font-style: normal; font-size: 10.5px; font-weight: var(--w-ui); color: var(--mint); }
  .ccard-foot .btn-sm, .ccard-foot .buy { padding: 8px 14px; min-block-size: 36px; font-size: 12.5px; }
  .ccard-prev {
    display: block; text-align: center; font-size: 11.5px; font-weight: var(--w-ui);
    color: var(--spark); padding: 0 var(--s-4) var(--s-4);
  }
  .ccard-prev:hover { color: #fff; }

  .cempty { text-align: center; color: var(--ink-3); padding-block: var(--s-8); font-size: var(--t-0); }
  .linklike { color: var(--spark); font-weight: var(--w-em); text-decoration: underline; }

  /* comparison table: our column is the emphasised one */
  .comptable th[scope="col"] { color: var(--ink-3); }
  .comptable .us { color: var(--ink); }
  .comptable td.us { background: var(--grad-soft); color: var(--ink); font-weight: var(--w-ui); }
  .comptable th[scope="row"] { color: var(--ink); font-weight: var(--w-em); white-space: nowrap; }
  .comptable td { vertical-align: top; font-size: 12.5px; line-height: 1.55; }
  .comptable { min-inline-size: 860px; }
}

@layer utilities {
  @media (max-width: 1080px) {
    .catalog-shell { grid-template-columns: 1fr; }
    .rail { position: static; }
    .rail-toggle {
      display: flex; align-items: center; justify-content: space-between; gap: var(--s-2);
      inline-size: 100%; padding: 13px 18px; min-block-size: 48px;
      background: var(--surface); border: 1px solid var(--line-2); border-radius: var(--radius-pill);
      font-weight: var(--w-em); font-size: var(--t--1); color: var(--ink);
    }
    .rail-body { display: none; margin-block-start: var(--s-4); }
    .rail.open .rail-body { display: grid; }
    .rail.open .rail-toggle .caret { transform: rotate(180deg); }
  }
  @media (max-width: 640px) {
    .cgrid { grid-template-columns: repeat(auto-fill, minmax(148px, 1fr)); gap: var(--s-3); }
    .ccard-body { padding-inline: var(--s-3); }
    .ccard-foot { padding-inline: var(--s-3); flex-direction: column; align-items: stretch; gap: var(--s-2); }
    .ccard-price { align-items: center; }
    .ccard-foot .btn-sm, .ccard-foot .buy { inline-size: 100%; }
    .catalog-bar { gap: var(--s-2); }
    .catalog-count { order: 3; inline-size: 100%; text-align: center; }
  }

  /* ---- mobile navigation: class-driven, locked, full-height ---- */
  html.menu-open { overflow: hidden; }
  .mobile-menu { display: none; }
  html.menu-open .mobile-menu {
    display: flex;
    position: fixed; inset: 68px 0 0; z-index: 49;
    background: color-mix(in srgb, var(--bg) 97%, transparent);
    -webkit-backdrop-filter: blur(22px); backdrop-filter: blur(22px);
    padding: var(--s-5); gap: var(--s-1); overflow-y: auto;
    animation: menuIn .22s var(--ease);
  }
  @supports not (background: color-mix(in srgb, red 50%, transparent)) {
    html.menu-open .mobile-menu { background: rgba(7,7,10,.97); }
  }
  html.menu-open .mobile-menu a {
    font-size: var(--t-1); font-weight: var(--w-em); color: var(--ink);
    padding: var(--s-4); min-block-size: 52px; display: flex; align-items: center;
    border-block-end: 1px solid var(--line);
  }
  html.menu-open .mobile-menu a:last-child { border-block-end: 0; }
  @keyframes menuIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }

  /* hamburger turns into a close control while open */
  .menu-btn { position: relative; z-index: 51; display: none;
    inline-size: 44px; block-size: 44px; min-inline-size: 44px; min-block-size: 44px;
    padding: 0; display: none; place-items: center; }
  .menu-btn span { transition: transform var(--fast), opacity var(--fast); }
  .menu-btn.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .menu-btn.is-open span:nth-child(2) { opacity: 0; }
  .menu-btn.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
  @media (max-width: 1080px) { .menu-btn { display: block; } }
}

@layer components {
  /* the mark renders as inline svg so it inherits colour and stays crisp */
  .logo .mark { padding: 0; }
  .markimg { inline-size: 62%; block-size: 62%; color: #fff; }

  /* ---- brand page ---- */
  .logo-row { display: grid; grid-template-columns: repeat(auto-fit,minmax(180px,1fr)); gap: var(--s-4); }
  .logo-tile {
    display: grid; place-items: center; gap: var(--s-3);
    background: var(--surface); border: 1px solid var(--line);
    border-radius: var(--radius); padding: var(--s-6);
    box-shadow: var(--rim), var(--lift-1); min-block-size: 190px;
  }
  .logo-tile > span:last-child { font-size: 11px; letter-spacing: var(--track-micro); text-transform: uppercase; color: var(--ink-4); font-weight: var(--w-head); }
  .logo-tile img { border-radius: var(--radius-s); }
  .mono-tile .mark-mono { inline-size: 120px; block-size: 120px; display: grid; place-items: center; background: var(--ink); border-radius: var(--radius-s); }
  .mono-tile .markimg { color: var(--bg); inline-size: 70%; block-size: 70%; }
  .small-tile img { image-rendering: pixelated; }
  .lockup { display: flex; align-items: center; gap: var(--s-3); }
  .lockup .mark { inline-size: 44px; block-size: 44px; border-radius: 12px; display: grid; place-items: center; background: var(--grad); box-shadow: var(--glow); }
  .lockup .markimg { inline-size: 62%; block-size: 62%; color: #fff; }
  .lockup b { font-size: var(--t-1); font-weight: var(--w-disp); letter-spacing: -.03em; }

  .swatches { display: grid; grid-template-columns: repeat(auto-fit,minmax(210px,1fr)); gap: var(--s-4); }
  .swatch {
    background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
    padding: var(--s-5); box-shadow: var(--rim), var(--lift-1); text-align: start;
  }
  .chip-lg { display: block; block-size: 56px; border-radius: var(--radius-s); border: 1px solid var(--line-2); margin-block-end: var(--s-3); }
  .swatch b { display: block; font-size: var(--t-0); font-weight: var(--w-em); }
  .swatch code { display: inline-block; font-family: var(--mono); font-size: 11.5px; color: var(--spark); margin-inline-end: var(--s-2); }
  .swatch code.dim { color: var(--ink-4); }
  .swatch p { color: var(--ink-2); font-size: 12.5px; margin-block-start: var(--s-2); }
  code { font-family: var(--mono); font-size: .92em; color: var(--spark); }
}