/* ============================================================
       1 · TOKENS
       (extracted from the Brainy Neurals design system)
       ============================================================ */
    :root {
      --ink:        #0A0A0B;
      --ink-2:      #1A1A1D;
      --ink-3:      #2A2A2E;
      --paper:      #FFFFFF;
      --paper-2:    #F4F4F2;
      --paper-3:    #E8E8E4;
      --bone:       #FAFAF8;
      --line:       rgba(10,10,11,0.14);
      --line-soft:  rgba(10,10,11,0.08);
      --line-dark:  rgba(244,239,230,0.14);
      --muted:      rgba(10,10,11,0.58);
      --muted-dark: rgba(244,239,230,0.62);

      --blue:       #0655FF;
      --blue-2:     #0444CC;
      --blue-tint:  #DCE5FF;
      --blue-deep:  #03257A;
      --signal:     #B5FF3C;

      --r-sm: 4px;
      --r:    8px;
      --r-lg: 14px;
      --r-xl: 22px;

      --container: 1320px;
      --gutter: 32px;

      --t1: cubic-bezier(.2,.7,.2,1);
      --t2: cubic-bezier(.7,0,.3,1);
    }

    /* ============================================================
       2 · BASE / RESET
       ============================================================ */
    *,*::before,*::after { box-sizing: border-box; }
    html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *,*::before,*::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
    }
    body {
      margin: 0;
      font-family: "IBM Plex Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
      font-weight: 400;
      font-size: 17px;
      line-height: 1.5;
      color: var(--ink);
      background: var(--paper);
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
      font-feature-settings: "ss01", "cv11";
    }
    option {
        color: #000;
    }
    img, svg { display: block; max-width: 100%; }
    a { color: inherit; text-decoration: none; }
    button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; }
    input, select, textarea { font: inherit; color: inherit; }
    ::selection { background: var(--ink); color: var(--paper); }
    p { margin: 0 0 16px; }
    p.muted { color: var(--muted); }

    .serif { font-family: "IBM Plex Serif", "Times New Roman", serif; font-weight: 400; letter-spacing: -0.01em; }
    .mono  { font-family: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace; }

    .skip {
      position: absolute; left: -9999px; top: 8px;
      background: var(--ink); color: var(--paper);
      padding: 10px 14px; border-radius: var(--r); z-index: 9999;
    }
    .skip:focus { left: 16px; }
    :focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: 3px; }

    /* ============================================================
       3 · LAYOUT PRIMITIVES
       ============================================================ */
    .wrap {
      max-width: var(--container);
      margin: 0 auto;
      padding-left: var(--gutter);
      padding-right: var(--gutter);
    }
    .section { padding: 120px 0; position: relative; }
    .section-tight { padding: 80px 0; }
    .dark { background: var(--ink); color: var(--bone); }
    .dark a { color: var(--bone); }
    .hr { height: 1px; background: var(--line); border: 0; margin: 0; }
    .dark .hr { background: var(--line-dark); }

    .h-display {
      font-family: "IBM Plex Sans", sans-serif;
      font-weight: 500;
      font-size: clamp(40px, 6.0vw, 88px);
      line-height: 0.98;
      letter-spacing: -0.035em;
      margin: 0;
      text-wrap: balance;
    }
    .h-display em { font-style: italic; font-family: "IBM Plex Serif", serif; font-weight: 400; letter-spacing: -0.02em; }

    .h-section {
      font-family: "IBM Plex Sans", sans-serif;
      font-weight: 500;
      font-size: clamp(34px, 4.4vw, 60px);
      line-height: 1.02;
      letter-spacing: -0.03em;
      margin: 0 0 24px;
      text-wrap: balance;
    }
    .h-section em { font-style: italic; font-family: "IBM Plex Serif", serif; font-weight: 400; }

    .lede {
      font-size: clamp(18px, 1.35vw, 22px);
      line-height: 1.45;
      color: var(--ink);
      max-width: 820px;
      margin: 0 0 36px;
      text-wrap: pretty;
    }
    .dark .lede { color: var(--bone); }

    .eyebrow {
      display: inline-flex; align-items: center; gap: 12px;
      font-family: "IBM Plex Mono", monospace;
      font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase;
      color: var(--muted);
      margin-bottom: 22px;
    }
    .eyebrow .rule { width: 28px; height: 1px; background: currentColor; opacity: .35; }
    .eyebrow .ix { color: var(--blue); }
    .dark .eyebrow { color: var(--muted-dark); }
    .dark .eyebrow .ix { color: var(--signal); }

    /* personalization token — renders literal bracketed form, replaced by WP at runtime */
    .personalization-token { white-space: nowrap; }

    /* ============================================================
       4 · BUTTONS
       ============================================================ */
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 10px;
      height: 48px; padding: 0 22px;
      border-radius: 999px;
      font-family: "IBM Plex Sans", sans-serif;
      font-size: 15px; font-weight: 500;
      letter-spacing: -0.005em;
      white-space: nowrap;
      min-height: 44px;
      transition: transform .2s var(--t1), background .2s var(--t1), color .2s var(--t1), border-color .2s var(--t1);
    }
    .btn .arr { transition: transform .25s var(--t1); display: inline-block; }
    .btn:hover .arr { transform: translateX(4px); }
    .btn-primary { background: var(--blue); color: #fff; }
    .btn-primary:hover { background: var(--blue-2); }
    .btn-ink { background: var(--ink); color: var(--bone); }
    .btn-ink:hover { background: var(--ink-2); }
    .btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
    .btn-ghost:hover { border-color: var(--ink); background: var(--bone); }
    .dark .btn-ghost { color: var(--bone); border-color: var(--line-dark); }
    .dark .btn-ghost:hover { border-color: var(--bone); background: rgba(255,255,255,0.04); }
    .btn-text { display: inline-flex; align-items: center; gap: 8px; font-weight: 500; color: var(--ink); border-bottom: 1px solid transparent; padding-bottom: 2px; }
    .btn-text:hover { border-color: var(--ink); }

    /* ============================================================
       5 · NAV (site header — design system shell)
       ============================================================ */
    .nav {
      position: sticky; top: 0; z-index: 50;
      background: rgba(255,255,255,0.82);
      backdrop-filter: blur(12px) saturate(140%);
      -webkit-backdrop-filter: blur(12px) saturate(140%);
      border-bottom: 1px solid var(--line-soft);
    }
    .nav-inner {
      display: flex; align-items: center; justify-content: space-between;
      height: 64px; gap: 24px;
    }
    .brand { display: inline-flex; align-items: center; gap: 10px; }
    .brand-logo { height: 34px; width: auto; display: block; }
    .nav-links { display: flex; align-items: center; gap: 4px; }
    .nav-link {
      font-size: 14.5px; color: var(--ink); padding: 8px 12px; border-radius: 8px;
      display: inline-flex; align-items: center; gap: 6px;
      transition: background .15s var(--t1);
    }
    .nav-link:hover { background: rgba(10,10,11,0.06); }
    .nav-link .caret { font-size: 10px; opacity: .5; }
    .nav-cta { display: flex; align-items: center; gap: 14px; }
    .nav-mono {
      font-family: "IBM Plex Mono", monospace;
      font-size: 11.5px; color: var(--muted);
      display: inline-flex; align-items: center; gap: 6px;
    }
    .nav-mono .pulse {
      width: 6px; height: 6px; border-radius: 50%;
      background: #16A34A;
      box-shadow: 0 0 0 0 rgba(22,163,74,.6);
      animation: pulse 2s infinite;
    }
    @keyframes pulse {
      0%   { box-shadow: 0 0 0 0 rgba(22,163,74,.5); }
      70%  { box-shadow: 0 0 0 8px rgba(22,163,74,0); }
      100% { box-shadow: 0 0 0 0 rgba(22,163,74,0); }
    }
    .nav-burger { display: none; }
    @media (max-width: 980px) {
      .nav-links { display: none; }
      .nav-mono { display: none; }
      .nav .btn-ink { display: none; }
      .nav-burger {
        display: inline-flex; align-items: center; justify-content: center;
        width: 40px; height: 40px; border-radius: 8px; border: 1px solid var(--line);
      }
    }

    /* ============================================================
       6 · §1 HERO CONFIRMATION
       Signature moment — a "booking receipt" panel with a perforated
       stub. Mono-typeset, engineering register, no celebration.
       ============================================================ */
    .hero {
      position: relative;
      padding: 80px 0 64px;
      overflow: hidden;
    }
    .hero::before {
      /* quiet 64px grid texture, masked away at the bottom */
      content: "";
      position: absolute; inset: 0;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(10,10,11,0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(10,10,11,0.035) 1px, transparent 1px);
      background-size: 64px 64px;
      mask-image: linear-gradient(180deg, black, transparent 75%);
      -webkit-mask-image: linear-gradient(180deg, black, transparent 75%);
      opacity: 0.7;
    }
    .hero .wrap { position: relative; }

    .hero-top {
      display: flex; align-items: center; gap: 14px;
      font-family: "IBM Plex Mono", monospace;
      font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase;
      color: var(--muted);
      margin-bottom: 36px;
    }
    .hero-top .rule { flex: 1; height: 1px; background: var(--line); }
    .hero-top .live {
      display: inline-flex; align-items: center; gap: 8px;
      color: var(--ink);
    }
    .hero-top .live .sig {
      width: 6px; height: 6px; border-radius: 50%; background: var(--signal);
      box-shadow: 0 0 0 0 rgba(181,255,60,.6);
      animation: pulse-sig 2s infinite;
    }
    @keyframes pulse-sig {
      0%   { box-shadow: 0 0 0 0 rgba(181,255,60,.5); }
      70%  { box-shadow: 0 0 0 8px rgba(181,255,60,0); }
      100% { box-shadow: 0 0 0 0 rgba(181,255,60,0); }
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.05fr 1fr;
      gap: 64px;
      align-items: start;
    }

    .hero-headline { padding-top: 8px; }
    .hero-headline h1 { margin-bottom: 28px; }
    .hero-headline h1 .blue {
      color: var(--blue);
      font-style: italic;
      font-family: "IBM Plex Serif", serif;
      font-weight: 400;
    }
    .hero-sub {
      font-size: clamp(17px, 1.25vw, 20px);
      line-height: 1.5;
      color: var(--ink);
      max-width: 560px;
      margin: 0 0 36px;
    }
    .hero-sub .muted { color: var(--muted); }

    /* greeting line at top — first name + warm acknowledgement */
    .hero-greet {
      font-family: "IBM Plex Mono", monospace;
      font-size: 13px; letter-spacing: 0.02em;
      color: var(--ink);
      margin: 0 0 22px;
      display: inline-flex; align-items: center; gap: 10px;
      padding: 6px 14px;
      background: var(--bone);
      border: 1px solid var(--line);
      border-radius: 999px;
    }
    .hero-greet .sq {
      width: 6px; height: 6px; background: var(--blue); display: inline-block;
    }
    .hero-greet .tok { color: var(--ink); }

    /* ---------- booking receipt (signature moment) ---------- */
    .receipt {
      position: relative;
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: var(--r-lg);
      box-shadow:
        0 30px 60px -30px rgba(10,10,11,0.18),
        0 2px 6px rgba(10,10,11,0.04);
      overflow: hidden;
    }
    .receipt::before {
      /* faint diagonal "page texture" */
      content: "";
      position: absolute; inset: 0;
      background-image: repeating-linear-gradient(
        90deg,
        transparent 0 23px,
        rgba(10,10,11,0.025) 23px 24px
      );
      pointer-events: none;
      mask-image: linear-gradient(180deg, transparent, black 30%, black 70%, transparent);
      -webkit-mask-image: linear-gradient(180deg, transparent, black 30%, black 70%, transparent);
    }

    .receipt-head {
      position: relative;
      display: flex; align-items: center; justify-content: space-between;
      gap: 16px;
      padding: 14px 22px;
      background: var(--ink);
      color: var(--bone);
      font-family: "IBM Plex Mono", monospace;
      font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
    }
    .receipt-head .dots { display: flex; gap: 6px; }
    .receipt-head .dots span {
      width: 8px; height: 8px; border-radius: 50%; background: var(--ink-3);
    }
    .receipt-head .dots span:nth-child(1) { background: #5C5C66; }
    .receipt-head .dots span:nth-child(2) { background: #3B3B42; }
    .receipt-head .filename { color: var(--muted-dark); }
    .receipt-head .filename b { color: var(--bone); font-weight: 500; }

    .receipt-body {
      position: relative;
      padding: 32px 32px 12px;
    }
    .receipt-status {
      display: flex; align-items: baseline; gap: 14px;
      font-family: "IBM Plex Mono", monospace;
      font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase;
      color: var(--muted);
      margin-bottom: 18px;
    }
    .receipt-status .ok {
      display: inline-flex; align-items: center; gap: 8px;
      color: var(--ink);
    }
    .receipt-status .ok .check {
      width: 14px; height: 14px;
      display: inline-grid; place-items: center;
      background: var(--blue);
      color: #fff;
      border-radius: 50%;
    }
    .receipt-status .ok .check svg { width: 8px; height: 8px; display: block; }
    .receipt-status .id { margin-left: auto; color: var(--muted); }

    .receipt-meeting {
      display: grid;
      grid-template-columns: 1fr;
      gap: 0;
      margin: 0;
      padding: 4px 0 18px;
      border-bottom: 1px dashed var(--line);
    }
    .receipt-row {
      display: grid;
      grid-template-columns: 132px 1fr;
      align-items: baseline;
      gap: 16px;
      padding: 12px 0;
      border-top: 1px solid var(--line-soft);
    }
    .receipt-row:first-child { border-top: 0; padding-top: 4px; }
    .receipt-row .k {
      font-family: "IBM Plex Mono", monospace;
      font-size: 10.5px; letter-spacing: 0.08em; text-transform: uppercase;
      color: var(--muted);
    }
    .receipt-row .v {
      font-family: "IBM Plex Sans", sans-serif;
      font-size: 17px; font-weight: 500; letter-spacing: -0.01em;
      color: var(--ink);
    }
    .receipt-row .v .tz {
      display: block;
      margin-top: 4px;
      font-family: "IBM Plex Mono", monospace;
      font-size: 12px; font-weight: 400; letter-spacing: 0.02em;
      color: var(--muted);
    }
    .receipt-row .v.serif-num {
      font-family: "IBM Plex Serif", serif; font-style: italic; font-weight: 400;
      font-size: clamp(28px, 2.6vw, 36px); line-height: 1; letter-spacing: -0.015em;
    }

    /* perforation between body and calendar-actions */
    .perf {
      position: relative; height: 22px;
      display: flex; align-items: center;
      pointer-events: none;
    }
    .perf::before, .perf::after {
      content: "";
      position: absolute; top: 50%; transform: translateY(-50%);
      width: 22px; height: 22px;
      background: var(--bone);
      border-radius: 50%;
      border: 1px solid var(--line);
    }
    .perf::before { left: -11px; }
    .perf::after  { right: -11px; }
    .perf-line {
      flex: 1;
      height: 1px;
      margin: 0 22px;
      background-image: linear-gradient(90deg, var(--line) 50%, transparent 50%);
      background-size: 8px 1px;
    }

    .receipt-actions {
      position: relative;
      padding: 22px 24px 24px;
      background: var(--bone);
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }
    .cal-btn {
      display: flex; align-items: center; gap: 12px;
      padding: 14px 16px;
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: var(--r);
      text-align: left;
      font-size: 14.5px; font-weight: 500; letter-spacing: -0.005em;
      color: var(--ink);
      transition: border-color .2s var(--t1), transform .2s var(--t1), background .2s var(--t1);
      min-height: 44px;
    }
    .cal-btn:hover { border-color: var(--ink); transform: translateY(-1px); }
    .cal-btn:focus-visible { border-color: var(--blue); }
    .cal-btn .ic {
      width: 26px; height: 26px;
      display: grid; place-items: center;
      flex-shrink: 0;
    }
    .cal-btn .ic svg { width: 22px; height: 22px; display: block; }
    .cal-btn .lbl { flex: 1; line-height: 1.15; }
    .cal-btn .lbl small {
      display: block;
      font-family: "IBM Plex Mono", monospace;
      font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase;
      color: var(--muted); font-weight: 400;
      margin-bottom: 2px;
    }
    .cal-btn .arr {
      font-family: "IBM Plex Mono", monospace; color: var(--muted);
      transition: transform .2s var(--t1), color .2s var(--t1);
    }
    .cal-btn:hover .arr { transform: translateX(3px); color: var(--ink); }

    .receipt-foot {
      padding: 14px 24px;
      background: var(--ink);
      color: var(--muted-dark);
      font-family: "IBM Plex Mono", monospace;
      font-size: 10.5px; letter-spacing: 0.08em; text-transform: uppercase;
      display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
    }
    .receipt-foot .signoff { color: var(--bone); }
    .receipt-foot .ok-mark { color: var(--signal); }

    @media (max-width: 1100px) {
      .hero-grid { grid-template-columns: 1fr; gap: 48px; }
      .receipt { max-width: 640px; }
    }
    @media (max-width: 540px) {
      .receipt-row { grid-template-columns: 1fr; gap: 4px; padding: 14px 0; }
      .receipt-actions { grid-template-columns: 1fr; }
    }

    /* ============================================================
       7 · §2 HOW TO PREPARE — service-ledger style numbered list
       ============================================================ */
    .prep-head {
      display: grid; grid-template-columns: 1fr 1fr;
      gap: 48px; align-items: end;
      margin-bottom: 48px;
    }
    .prep-head .lede { margin: 0; max-width: 520px; }

    .prep-list { border-top: 1px solid var(--line); }
    .prep-row {
      display: grid;
      grid-template-columns: 80px 1.2fr 2.2fr;
      gap: 24px;
      padding: 32px 0;
      border-bottom: 1px solid var(--line);
      align-items: start;
      position: relative;
      transition: background .2s var(--t1);
    }
    .prep-row::before {
      content: "";
      position: absolute; inset: 0;
      margin: -2px -16px;
      background: var(--bone);
      border-radius: 8px;
      opacity: 0;
      transition: opacity .2s var(--t1);
      z-index: -1;
    }
    .prep-row:hover::before { opacity: 1; }
    .prep-num {
      font-family: "IBM Plex Mono", monospace;
      font-size: 13px; color: var(--muted); letter-spacing: 0.04em;
      padding-top: 6px;
    }
    .prep-title h3 {
      font-family: "IBM Plex Mono", monospace;
      font-size: 12.5px;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--ink);
      margin: 0;
      line-height: 1.45;
      font-weight: 500;
      max-width: 320px;
    }
    .prep-title .opt {
      display: inline-block;
      margin-top: 8px;
      padding: 2px 8px;
      background: var(--blue);
      color: #fff;
      border-radius: 999px;
      font-size: 10px; letter-spacing: 0.05em;
      text-transform: uppercase;
    }
    .prep-body p { font-size: 15.5px; line-height: 1.6; color: var(--ink); margin: 0; max-width: 640px; }
    .prep-body p.muted { color: var(--muted); }

    @media (max-width: 900px) {
      .prep-head { grid-template-columns: 1fr; }
      .prep-row { grid-template-columns: 56px 1fr; row-gap: 12px; padding: 26px 0; }
      .prep-body { grid-column: 2 / -1; }
      .prep-title h3 { max-width: none; }
    }

    /* ============================================================
       8 · §3 FOUNDER NOTE
       ============================================================ */
    .founder-section { background: var(--bone); }
    .founder-section::before {
      /* hairline rule "publication divider" above the section */
      content: "";
      display: block; height: 1px; background: var(--line);
    }
    .founder {
      display: grid;
      grid-template-columns: 0.85fr 1.25fr;
      gap: 72px;
      align-items: stretch;
    }
    .founder-photo {
      position: relative;
      aspect-ratio: 4/5;
      background: var(--paper-3);
      border: 1px solid var(--line);
      border-radius: var(--r-lg);
      overflow: hidden;
    }
    .founder-photo img {
      position: absolute; inset: 0;
      width: 100%; height: 100%;
      object-fit: cover;
      object-position: center 18%;
    }
    .founder-photo .cap {
      position: absolute; left: 16px; bottom: 16px;
      color: var(--ink);
      font-family: "IBM Plex Mono", monospace;
      font-size: 10.5px; letter-spacing: 0.08em; text-transform: uppercase;
      background: rgba(255,255,255,0.92);
      border: 1px solid var(--line);
      padding: 6px 10px; border-radius: 4px;
      z-index: 2;
    }
    .founder-photo .corner {
      position: absolute; right: 14px; bottom: 14px;
      width: 6px; height: 6px;
      border: 1px solid rgba(255,255,255,0.6);
      border-left: 0; border-top: 0;
      z-index: 2;
    }

    .founder-copy { display: flex; flex-direction: column; justify-content: center; }
    .founder-copy h2 { margin-bottom: 28px; max-width: 18ch; }
    .founder-copy h2 em { font-style: italic; font-family: "IBM Plex Serif", serif; font-weight: 400; }
    .founder-note p {
      font-family: "IBM Plex Sans", sans-serif;
      font-size: 18px;
      line-height: 1.6;
      color: var(--ink);
      margin: 0 0 18px;
      max-width: 60ch;
      text-wrap: pretty;
    }
    .founder-note p:last-of-type { margin-bottom: 0; }
    .founder-signoff {
      margin-top: 32px;
      padding-top: 22px;
      border-top: 1px solid var(--line);
      display: flex; gap: 14px; align-items: center;
      flex-wrap: wrap;
    }
    .founder-signoff .signature {
      font-family: "IBM Plex Serif", serif;
      font-style: italic;
      font-size: 22px;
      letter-spacing: -0.01em;
      color: var(--ink);
    }
    .founder-signoff .cred {
      font-family: "IBM Plex Mono", monospace;
      font-size: 11.5px; letter-spacing: 0.06em; text-transform: uppercase;
      color: var(--muted);
    }
    .founder-signoff .nvidia-dot {
      display: inline-block;
      width: 8px; height: 8px; border-radius: 50%; background: #76B900;
      box-shadow: 0 0 0 3px rgba(118,185,0,0.18);
      margin-right: 6px;
      vertical-align: middle;
    }

    @media (max-width: 1024px) {
      .founder { grid-template-columns: 1fr; gap: 40px; }
      .founder-photo { max-width: 420px; }
    }

    /* ============================================================
       9 · §4 OPTIONAL PREP READING — asymmetric 12-col bento
       ============================================================ */
    .prep-cards-head {
      display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: end;
      margin-bottom: 48px;
    }
    .prep-cards-head .lede { margin: 0; max-width: 540px; }

    .prep-cards {
      display: grid;
      grid-template-columns: repeat(12, 1fr);
      grid-auto-rows: minmax(280px, auto);
      gap: 1px;
      background: var(--line);
      border: 1px solid var(--line);
      border-radius: var(--r-lg);
      overflow: hidden;
    }
    .prep-card {
      background: var(--bone);
      padding: 36px;
      display: flex; flex-direction: column; gap: 18px;
      position: relative;
      transition: background .2s var(--t1);
    }
    .prep-card:hover { background: #fff; }
    .prep-card.span-7 { grid-column: span 7; grid-row: span 2; background: var(--ink); color: var(--bone); padding: 44px; }
    .prep-card.span-7:hover { background: var(--ink-2); }
    .prep-card.span-5 { grid-column: span 5; }

    .prep-card .tag {
      font-family: "IBM Plex Mono", monospace;
      font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
      color: var(--muted);
      display: flex; align-items: center; gap: 10px;
    }
    .prep-card.span-7 .tag { color: var(--muted-dark); }
    .prep-card .tag .sq { width: 8px; height: 8px; background: var(--blue); }
    .prep-card.span-7 .tag .sq { background: var(--signal); }

    .prep-card h3 {
      font-family: "IBM Plex Sans", sans-serif;
      font-weight: 500;
      font-size: clamp(22px, 2vw, 32px);
      line-height: 1.08;
      letter-spacing: -0.022em;
      margin: 0;
      max-width: 18ch;
      text-wrap: balance;
    }
    .prep-card.span-7 h3 { font-size: clamp(28px, 2.8vw, 42px); max-width: 16ch;  color:#fff}
    .prep-card h3 em { font-style: italic; font-family: "IBM Plex Serif", serif; font-weight: 400; }
    .prep-card .body { font-size: 14.5px; line-height: 1.6; color: var(--muted); max-width: 44ch; }
    .prep-card.span-7 .body { color: var(--muted-dark); font-size: 16px; max-width: 52ch; }

    .prep-card .foot {
      margin-top: auto;
      padding-top: 18px;
      border-top: 1px solid var(--line);
      display: flex; align-items: center; justify-content: space-between;
      font-family: "IBM Plex Mono", monospace; font-size: 12px; letter-spacing: 0.04em;
    }
    .prep-card.span-7 .foot { border-top-color: var(--line-dark); }
    .prep-card .foot .meta { color: var(--muted); }
    .prep-card.span-7 .foot .meta { color: var(--muted-dark); }
    .prep-card .foot .cta {
      display: inline-flex; align-items: center; gap: 8px;
      color: var(--ink); font-weight: 500;
      transition: color .2s var(--t1);
    }
    .prep-card.span-7 .foot .cta { color: var(--bone); }
    .prep-card .foot .cta .arr { transition: transform .2s var(--t1); }
    .prep-card:hover .foot .cta .arr { transform: translateX(4px); }

    @media (max-width: 980px) {
      .prep-cards-head { grid-template-columns: 1fr; }
      .prep-card.span-7, .prep-card.span-5 { grid-column: span 12; }
      .prep-card.span-7 { grid-row: auto; }
    }

    /* ============================================================
       10 · §5 ONE QUICK QUESTION — ink band, single dropdown
       ============================================================ */
    .quickq {
      position: relative;
      background: var(--ink);
      color: var(--bone);
      overflow: hidden;
    }
    .quickq::before {
      content: "";
      position: absolute; inset: 0;
      background-image:
        linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
      background-size: 64px 64px;
      mask-image: radial-gradient(circle at 30% 50%, black, transparent 80%);
      -webkit-mask-image: radial-gradient(circle at 30% 50%, black, transparent 80%);
      opacity: 0.55;
    }
    .quickq .wrap { position: relative; }
    .quickq-grid {
      display: grid; grid-template-columns: 0.95fr 1.1fr;
      gap: 64px; align-items: end;
    }
    .quickq h2 { margin-bottom: 18px; color: var(--bone); }
    .quickq h2 em { font-style: italic; font-family: "IBM Plex Serif", serif; font-weight: 400; color: var(--blue-tint); }
    .quickq .sub { color: var(--muted-dark); font-size: 16.5px; max-width: 44ch; margin: 0; }

    .quickq-field { width: 100%; max-width: 560px; }
    .quickq-field label {
      display: block;
      font-family: "IBM Plex Mono", monospace;
      font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
      color: var(--muted-dark);
      margin-bottom: 12px;
    }
    .quickq-select-wrap {
      position: relative;
    }
    .quickq-select {
      width: 100%;
      appearance: none; -webkit-appearance: none;
      background: rgba(255,255,255,0.04);
      border: 1px solid var(--line-dark);
      border-radius: var(--r);
      padding: 18px 56px 18px 22px;
      color: var(--bone);
      font-size: 16px;
      font-family: inherit;
      min-height: 56px;
      cursor: pointer;
      transition: border-color .2s var(--t1), background .2s var(--t1);
    }
    .quickq-select:hover { border-color: rgba(244,239,230,0.32); }
    .quickq-select:focus { outline: none; border-color: var(--blue); background: rgba(255,255,255,0.07); }
    .quickq-select-wrap::after {
      content: "";
      position: absolute; right: 22px; top: 50%; width: 10px; height: 10px;
      border-right: 1.5px solid var(--bone);
      border-bottom: 1.5px solid var(--bone);
      transform: translateY(-65%) rotate(45deg);
      pointer-events: none;
    }
    .quickq-confirm {
      display: inline-flex; align-items: center; gap: 10px;
      margin-top: 16px;
      font-family: "IBM Plex Mono", monospace;
      font-size: 12px; letter-spacing: 0.04em;
      color: var(--signal);
      opacity: 0;
      transform: translateY(4px);
      transition: opacity .25s var(--t1), transform .25s var(--t1);
    }
    .quickq-confirm.show { opacity: 1; transform: translateY(0); }
    .quickq-confirm .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--signal); }

    @media (max-width: 900px) {
      .quickq-grid { grid-template-columns: 1fr; gap: 36px; }
    }

    /* ============================================================
       11 · §6 REFERRAL
       ============================================================ */
    .refer-head {
      display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: end;
      margin-bottom: 48px;
    }
    .refer-head .lede { margin: 0; max-width: 540px; }

    .refer-actions {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 0;
      border: 1px solid var(--line);
      border-radius: var(--r-lg);
      overflow: hidden;
      background: var(--bone);
    }
    .refer-card {
      padding: 40px;
      display: flex; flex-direction: column; gap: 14px;
      position: relative;
      transition: background .2s var(--t1);
    }
    .refer-card + .refer-card {
      border-left: 1px solid var(--line);
    }
    .refer-card:hover { background: #fff; }
    .refer-card .ix {
      font-family: "IBM Plex Mono", monospace;
      font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
      color: var(--muted);
      display: flex; align-items: center; gap: 10px;
    }
    .refer-card .ix .sq { width: 8px; height: 8px; background: var(--blue); }
    .refer-card h3 {
      font-family: "IBM Plex Sans", sans-serif;
      font-weight: 500;
      font-size: clamp(20px, 1.6vw, 24px);
      line-height: 1.2; letter-spacing: -0.015em;
      margin: 0;
      max-width: 22ch;
    }
    .refer-card p { font-size: 14.5px; color: var(--muted); margin: 0; max-width: 36ch; }
    .refer-card .act {
      margin-top: 14px;
      display: inline-flex; align-items: center; gap: 12px;
    }
    .refer-card .act button, .refer-card .act a {
      display: inline-flex; align-items: center; gap: 10px;
      padding: 12px 18px;
      border-radius: 999px;
      border: 1px solid var(--ink);
      background: var(--ink);
      color: var(--bone);
      font-size: 14px; font-weight: 500;
      transition: background .2s var(--t1), color .2s var(--t1);
      min-height: 44px;
    }
    .refer-card .act button:hover, .refer-card .act a:hover {
      background: var(--ink-2);
    }
    .refer-card .act button.copied {
      background: var(--paper); color: var(--ink);
      border-color: var(--blue);
    }
    .refer-card .act .url-preview {
      font-family: "IBM Plex Mono", monospace;
      font-size: 11.5px; color: var(--muted);
      letter-spacing: 0.02em;
    }
    .refer-card .copied-msg {
      font-family: "IBM Plex Mono", monospace;
      font-size: 11px; letter-spacing: 0.06em; color: var(--blue);
      opacity: 0;
      transition: opacity .2s var(--t1);
      margin-top: 4px;
      height: 14px;
    }
    .refer-card .copied-msg.show { opacity: 1; }

    @media (max-width: 800px) {
      .refer-head { grid-template-columns: 1fr; }
      .refer-actions { grid-template-columns: 1fr; }
      .refer-card + .refer-card { border-left: 0; border-top: 1px solid var(--line); }
    }

    /* ============================================================
       12 · §7 MINIMAL FOOTER
       ============================================================ */
    .footer-min {
      background: var(--ink);
      color: var(--bone);
      padding: 56px 0 32px;
    }
    .footer-min .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr;
      gap: 48px;
      padding-bottom: 36px;
      border-bottom: 1px solid var(--line-dark);
      align-items: end;
    }
    .footer-min .brand-block .brand-logo {
      height: 48px;
      filter: brightness(0) invert(1); opacity: 0.95;
    }
    .footer-min .brand-block .tagline {
      margin: 18px 0 0;
      font-size: 15px; color: var(--muted-dark);
      max-width: 38ch;
      line-height: 1.55;
    }
    .footer-min .links {
      justify-self: end;
      display: flex; gap: 28px; flex-wrap: wrap;
    }
    .footer-min .links a {
      font-size: 14px; color: var(--bone);
      border-bottom: 1px solid transparent;
      padding-bottom: 2px;
      transition: border-color .2s var(--t1), color .2s var(--t1);
    }
    .footer-min .links a:hover { color: #7AA0FF; border-color: #7AA0FF; }
    .footer-min .copyright {
      display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
      padding-top: 28px;
      font-family: "IBM Plex Mono", monospace;
      font-size: 11px; letter-spacing: 0.06em;
      color: var(--muted-dark);
    }
    .footer-min .copyright .ix .sig {
      display: inline-block; width: 6px; height: 6px; border-radius: 50%;
      background: var(--signal); vertical-align: middle; margin-right: 8px;
    }
    @media (max-width: 800px) {
      .footer-min .footer-grid { grid-template-columns: 1fr; align-items: start; }
      .footer-min .links { justify-self: start; }
    }

    /* ============================================================
       13 · ACCESS-GATE FALLBACK
       Shown when no booking-completed flag is in sessionStorage.
       Per spec: do not surface the full content on direct URL access.
       ============================================================ */
    .gate {
      display: none;
      min-height: 70vh;
      align-items: center; justify-content: center;
      padding: 80px var(--gutter);
      text-align: center;
    }
    .gate.show { display: flex; }
    .gate-inner { max-width: 540px; }
    .gate .eyebrow { margin-bottom: 24px; }
    .gate h1 {
      font-family: "IBM Plex Sans", sans-serif;
      font-weight: 500;
      font-size: clamp(34px, 4vw, 56px);
      line-height: 1.02; letter-spacing: -0.03em;
      margin: 0 0 18px;
    }
    .gate p { color: var(--muted); margin: 0 0 32px; }
    body.gated > main > section:not(.gate),
    body.gated > main > .access-only { display: none; }

    /* ============================================================
       14 · FADE-UP ON ENTRY
       ============================================================ */
    .fade-up { opacity: 0; transform: translateY(16px); transition: opacity .6s var(--t1), transform .6s var(--t1); }
    .fade-up.in { opacity: 1; transform: translateY(0); }
    @media (prefers-reduced-motion: reduce) {
      .fade-up { opacity: 1; transform: none; }
    }