:root {
    /* color */
    --blue: #2f6cf0;
    --blue-600: #1f59e0;
    --blue-700: #1646b6;
    --blue-50: #eef4ff;
    --blue-100: #dce8ff;
    --ink: #0d1426;
    --gray: #49546d;
    --muted: #667085;
    --line: #e9eef6;
    --bg-soft: #f5f8fd;
    --footer: #0b1222;

    /* blue gradients (used for all blue surfaces) */
    --grad-blue: linear-gradient(150deg, #5fa0ff 0%, #2f74f2 42%, #1442c0 100%);
    --grad-blue-h: linear-gradient(100deg, #5b9bff 0%, #2a6bf0 58%, #1849d2 100%);
    --grad-blue-hover: linear-gradient(150deg, #4d90fb 0%, #2363e6 50%, #123fb8 100%);
    --grad-blue-radial: radial-gradient(circle at 50% 24%, #66a6ff 0%, #2f74f2 52%, #1849d2 100%);

    /* type */
    --font-display: 'Plus Jakarta Sans', system-ui, sans-serif;
    --font-body: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;

    /* layout */
    --maxw: 1180px;
    --gutter: 40px;
    --sy: 104px; /* section vertical rhythm */

    /* radius */
    --r-xl: 28px;
    --r-lg: 20px;
    --r-md: 14px;
    --r-pill: 999px;

    /* shadow (blue-tinted, soft) */
    --sh-sm: 0 4px 14px rgba(18, 43, 96, 0.06);
    --sh-md: 0 16px 40px rgba(18, 43, 96, 0.10);
    --sh-lg: 0 28px 70px rgba(13, 38, 92, 0.20);
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }

  body {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 17px;
    color: var(--ink);
    background: #fff;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    /* sticky footer: fill the viewport so the footer rests at the bottom */
    min-height: 100vh;
    display: flex;
    flex-direction: column;
  }
  body > main { flex: 1 0 auto; }

  h1, h2, h3, h4, .logo-name { font-family: var(--font-display); }

  a { color: inherit; text-decoration: none; }
  img { display: block; max-width: 100%; }
  /* <picture> wraps AVIF/WebP fallbacks. display:contents dissolves the wrapper so the
     inner <img> stays the laid-out element; <source> must be hidden or display:contents
     would promote each <source> into a grid/flex item (leaving empty cells). */
  picture { display: contents; }
  picture source { display: none; }
  :focus-visible { outline: 3px solid rgba(47, 108, 240, 0.4); outline-offset: 3px; border-radius: 6px; }

  .text-blue { color: var(--blue); }

  /* boxed content inside full-width sections */
  .wrap {
    max-width: var(--maxw);
    margin: 0 auto;
    padding-left: var(--gutter);
    padding-right: var(--gutter);
  }

  [id] { scroll-margin-top: 96px; }

  /* eyebrow label */
  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    color: var(--blue);
    background: var(--blue-50);
    border: 1px solid var(--blue-100);
    padding: 8px 16px;
    border-radius: var(--r-pill);
  }
  .eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 4px rgba(47,108,240,0.18); }
  .eyebrow.on-blue { color: #fff; background: rgba(255,255,255,0.16); border-color: rgba(255,255,255,0.28); }
  .eyebrow.on-blue .dot { background: #fff; box-shadow: 0 0 0 4px rgba(255,255,255,0.25); }

  /* section heading helpers */
  .sec-head { text-align: center; max-width: 640px; margin: 0 auto 52px; }
  .sec-head h1, .sec-head h2 { font-size: 44px; font-weight: 800; letter-spacing: -1.1px; line-height: 1.12; margin-top: 16px; }
  .sec-head p { color: var(--gray); font-size: 18px; font-weight: 500; margin-top: 14px; }

  /* ---------- Buttons ---------- */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 16px;
    border-radius: var(--r-md);
    padding: 15px 28px;
    cursor: pointer;
    border: 1.5px solid transparent;
    background-clip: padding-box;
    transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
  }
  .btn-primary { background: var(--grad-blue-h); background-clip: padding-box; color: #fff; box-shadow: 0 12px 26px rgba(47, 108, 240, 0.34); }
  .btn-primary:hover { background: var(--grad-blue-hover); background-clip: padding-box; transform: translateY(-2px); box-shadow: 0 16px 32px rgba(47, 108, 240, 0.42); }
  .btn-outline { background: #fff; color: var(--blue); border-color: var(--blue); border-width: 2px; }
  .btn-outline:hover { border-color: var(--blue); background: var(--blue-50); transform: translateY(-2px); }
  .btn-pill { border-radius: var(--r-pill); }
  .btn-lg { padding: 18px 36px; font-size: 17px; }

  /* ---------- Header ---------- */
  header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid transparent;
    transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
  }
  header.scrolled {
    border-bottom-color: var(--line);
    box-shadow: 0 6px 22px rgba(13, 38, 92, 0.07);
    background: rgba(255, 255, 255, 0.9);
  }
  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    padding-bottom: 16px;
  }
  .logo { display: flex; align-items: center; gap: 11px; }
  .logo-mark { width: 38px; height: 38px; display: grid; place-items: center; }
  .logo-name { font-weight: 800; font-size: 20px; letter-spacing: -0.3px; }
  nav ul { list-style: none; display: flex; gap: 34px; }
  nav a { position: relative; font-weight: 600; font-size: 16px; color: #2a3450; padding: 4px 0; }
  nav a::after { content: ""; position: absolute; left: 0; bottom: -2px; width: 0; height: 2px; background: var(--blue); border-radius: 2px; transition: width .2s ease; }
  nav a:hover, nav a[aria-current="page"] { color: var(--blue); }
  nav a:hover::after, nav a[aria-current="page"]::after { width: 100%; }

  /* ---------- Hero ---------- */
  .hero { position: relative; overflow: hidden; }
  .hero-inner {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    column-gap: 48px;
    row-gap: 44px;
    align-items: center;
    padding-top: 104px;
    padding-bottom: 40px;
  }
  .hero h1 {
    font-size: 66px;
    line-height: 1.06;
    font-weight: 800;
    letter-spacing: -0.5px;
    white-space: nowrap;
    margin-top: 22px;
  }
  .hero .lead {
    color: var(--gray);
    font-size: 19.5px;
    font-weight: 500;
    line-height: 1.7;
    letter-spacing: 0.3px;
    max-width: 470px;
    margin: 24px 0 36px;
  }
  .hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }

  .perfect-for {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px 28px;
    flex-wrap: wrap;
    margin-top: 24px;
  }
  .pf-label { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 17px; color: var(--ink); }
  .pf-item { display: inline-flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 600; color: #29344e; }
  .pf-label svg { flex-shrink: 0; width: 23px; height: 23px; }
  .pf-item svg { flex-shrink: 0; width: 21px; height: 21px; }

  /* hero visual — person stands in front of a cluster of floating blue circles
     (one large backdrop + smaller accents that gently bob) */
  .hero-visual { position: relative; min-height: 582px; }
  .float-circles { position: absolute; inset: 0; }
  .fc { position: absolute; border-radius: 50%; animation: fc-float 7s ease-in-out infinite; will-change: transform; }
  .fc-1 { width: 350px; height: 350px; top: 50%; left: 50%; margin: -184px 0 0 -175px; background: var(--grad-blue-radial); box-shadow: var(--sh-md); animation: none; }
  .fc-2 { width: 166px; height: 166px; top: 3%; right: 3%; background: radial-gradient(circle at 50% 28%, #a7caff 0%, #5b93f5 50%, #2f6cf0 100%); animation-delay: -1.4s; animation-duration: 8.2s; }
  .fc-3 { width: 116px; height: 116px; bottom: 6%; left: 1%; background: var(--grad-blue-radial); opacity: .92; animation-delay: -3.1s; animation-duration: 6.4s; }
  .fc-4 { width: 70px; height: 70px; top: 18%; left: 7%; background: var(--blue); animation-delay: -2.3s; animation-duration: 7.6s; }
  .fc-5 { width: 46px; height: 46px; bottom: 20%; right: 8%; background: rgba(47, 108, 240, 0.26); animation-delay: -4.6s; animation-duration: 9s; }
  @keyframes fc-float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-16px); } }
  .hero-photo {
    position: absolute; bottom: -26px; left: 50%; transform: translateX(-50%);
    width: 334px; height: auto; z-index: 2;
  }

  .badge {
    position: absolute;
    background: #fff;
    border-radius: 16px;
    padding: 12px 17px;
    display: flex;
    align-items: center;
    gap: 11px;
    box-shadow: var(--sh-md);
    z-index: 2;
    animation: badge-float 4.5s ease-in-out infinite;
    will-change: transform;
  }
  .badge-phrases { animation-delay: -2.25s; }

  @keyframes badge-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
  }

  @media (prefers-reduced-motion: reduce) {
    .badge, .fc { animation: none; }
  }
  .badge .badge-icon { width: 36px; height: 36px; border-radius: 10px; background: var(--blue-50); display: grid; place-items: center; }
  .badge .big { font-family: var(--font-display); font-weight: 800; font-size: 17px; line-height: 1.05; }
  .badge .small { font-size: 13px; color: var(--gray); }
  .badge-students { top: 56px; left: -8px; }
  .badge-phrases { bottom: 86px; right: -12px; }

  /* ---------- Feature / brand bar ---------- */
  .feature-bar { background: var(--grad-blue-h); color: #fff; }
  .feature-bar .fb-inner { display: flex; padding-top: 26px; padding-bottom: 26px; }
  .fb-item { flex: 1; display: flex; align-items: center; justify-content: center; gap: 13px; line-height: 1.2; }
  .fb-item:not(:last-child) { border-right: 1px solid rgba(255, 255, 255, 0.16); }
  .fb-item i { font-size: 34px; line-height: 1; color: #fff; }
  .fb-item .fb-brand { width: 30px; height: 30px; flex-shrink: 0; }
  .fb-item .t1 { font-family: var(--font-display); font-weight: 700; font-size: 16px; line-height: 1.15; }
  .fb-item .t2 { font-size: 13.5px; opacity: 0.82; line-height: 1.15; }

  /* ---------- Everything You Need ---------- */
  .everything-sec { background: var(--bg-soft); padding-top: 72px; padding-bottom: 52px; }
  .everything {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 68px;
    align-items: center;
  }
  .photo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
  .photo-grid img { width: 100%; aspect-ratio: 1 / 1; object-fit: contain; object-position: center bottom; border-radius: var(--r-md); background: var(--grad-blue-radial); }

  .everything h2 { font-size: 44px; font-weight: 800; letter-spacing: -1.1px; line-height: 1.14; margin: 16px 0 34px; }
  .feat-item { display: flex; gap: 18px; padding: 18px; border-radius: var(--r-lg); transition: background .2s ease, box-shadow .2s ease; }
  .feat-item:hover { background: #fff; box-shadow: var(--sh-sm); }
  .feat-item .ic {
    width: 48px; height: 48px; border-radius: 13px; flex-shrink: 0;
    background: linear-gradient(150deg, var(--blue), var(--blue-600));
    color: #fff; display: grid; place-items: center;
    box-shadow: 0 8px 18px rgba(47, 108, 240, 0.32);
  }
  .feat-item h3 { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
  .feat-item p { color: var(--gray); font-size: 16px; font-weight: 500; line-height: 1.6; max-width: 350px; }

  /* ---------- Coming soon ---------- */
  .coming-soon-sec { background: var(--bg-soft); padding-bottom: 64px; }
  .coming-soon-bar {
    max-width: 720px;
    margin: 0 auto;
    background: linear-gradient(90deg, #4f93ff 0%, #2f74f2 100%);
    border: none;
    border-radius: var(--r-pill);
    padding: 16px 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 11px;
    font-size: 16px;
    color: #fff;
    box-shadow: 0 14px 30px rgba(47, 108, 240, 0.32);
  }
  .coming-soon-bar .star { color: #fff; display: inline-flex; }
  .coming-soon-bar .star svg { fill: #fff; }
  .coming-soon-bar .text-blue { color: #fff; }

  /* ---------- Popular Resources ---------- */
  .popular { background: linear-gradient(30deg, #5fa0ff 0%, #2f74f2 42%, #1442c0 100%); color: #fff; padding-top: 60px; padding-bottom: 72px; }
  .popular .sec-head { max-width: 900px; margin-bottom: 42px; }
  .popular .sec-head h1, .popular .sec-head h2 { color: #fff; margin-top: 0; }
  .popular .sec-head p { color: rgba(255,255,255,0.86); white-space: nowrap; }
  .cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 38px; max-width: 920px; margin: 0 auto; }
  .card { background: #fff; border-radius: var(--r-lg); padding: 16px; box-shadow: var(--sh-lg); transition: transform .2s ease, box-shadow .2s ease; display: flex; flex-direction: column; }
  .card:hover { transform: translateY(-8px); box-shadow: 0 36px 80px rgba(8, 28, 78, 0.32); }
  /* Pin the price / buy area to the bottom so cards in a row stay aligned
     regardless of whether an item has buttons, a rating, or a region note. */
  .card > .card-link { flex: 1; display: flex; flex-direction: column; }
  .card > .card-link > .card-foot { margin-top: auto; }
  .card-book > .card-link { flex: 0 1 auto; }
  .card-book .card-buy { margin-top: auto; }
  .card-media { position: relative; border-radius: var(--r-md); overflow: hidden; aspect-ratio: 1 / 1; }
  .card-media .tag {
    position: absolute; top: 13px; left: 13px; z-index: 2;
    background: var(--blue); color: #fff;
    font-family: var(--font-display); font-size: 12.5px; font-weight: 700; letter-spacing: 0.3px;
    padding: 6px 15px; border-radius: var(--r-pill);
    box-shadow: 0 6px 16px rgba(47,108,240,0.4);
  }
  .card h3 { color: var(--ink); font-size: 18px; font-weight: 700; line-height: 1.32; margin: 18px 6px 16px; min-height: 48px; }
  .card-foot { display: flex; align-items: center; justify-content: space-between; padding: 0 6px 6px; }
  /* Keep the price on the right even when the rating is disabled/absent */
  .card-foot > .price, .card-foot > .price-wrap, .card-foot > .price-note, .card-foot > .price-from { margin-left: auto; }
  .rating { display: flex; align-items: center; gap: 6px; font-size: 14.5px; font-weight: 600; color: #384155; }
  .rating .stars { color: #f5a623; display: inline-flex; }
  .rating .count { color: var(--muted); font-weight: 500; }
  .price { font-family: var(--font-display); color: var(--blue); font-weight: 800; font-size: 19.5px; }
  .price-wrap { display: inline-flex; align-items: baseline; gap: 8px; }
  .price-old { font-family: var(--font-display); color: var(--muted); font-weight: 600; font-size: 15px; text-decoration: line-through; }
  .price-sale { color: #d23f57; }
  /* Alternative price displays (price_mode) */
  .price-note { font-family: var(--font-display); font-weight: 700; font-size: 14px; color: var(--muted); }
  .price-from { font-family: var(--font-display); color: var(--blue); font-weight: 800; font-size: 18px; display: inline-flex; align-items: baseline; gap: 5px; }
  .price-from .from-label { font-size: 11px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: 0.5px; }
  .card-region-note { font-size: 11.5px; color: var(--muted); padding: 0 6px 8px; margin-top: -4px; }

  /* Book card: format buy buttons (Paperback / Kindle) */
  .card-book .card-link--static { cursor: default; }
  .card-actions { display: flex; gap: 8px; padding: 4px 6px 6px; }
  .btn-book {
    flex: 1; display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    font-family: var(--font-display); font-size: 14px; font-weight: 700; padding: 10px 12px;
    border-radius: var(--r-md); background: var(--blue-50); color: var(--blue);
    border: 1.5px solid var(--blue-100); transition: background .15s, border-color .15s, color .15s;
  }
  .btn-book:hover { background: var(--blue); border-color: var(--blue); color: #fff; }

  /* data-driven card (D1) */
  .card-link { display: block; color: inherit; }
  .card-media .cover-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
  .cover-fallback {
    position: absolute; inset: 0;
    display: flex; flex-direction: column; justify-content: flex-end; gap: 8px;
    padding: 22px 20px;
    background: var(--grad-blue-radial);
    color: #fff;
  }
  .cover-fallback .cf-kicker { font-family: var(--font-display); font-size: 11.5px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; opacity: 0.82; }
  .cover-fallback .cf-title { font-family: var(--font-display); font-size: 21px; font-weight: 800; line-height: 1.18; }
  .cards-empty { grid-column: 1 / -1; text-align: center; color: #fff; opacity: 0.85; }

  /* book cover mockups */
  .book { position: absolute; inset: 0; display: grid; place-items: center; }
  .book-wood { background: linear-gradient(135deg, #c98f57, #a9743f); }
  .book-wood--light { background: linear-gradient(135deg, #d8c7a6, #c2a274); }
  .book-wood--dark { background: linear-gradient(135deg, #e7ddc9, #cbb690); }
  .cover {
    width: 144px; height: 186px; border-radius: 4px 9px 9px 4px;
    box-shadow: -7px 9px 22px rgba(0,0,0,0.38);
    padding: 15px 13px; color: #fff;
    display: flex; flex-direction: column;
    transform: rotate(-3deg); position: relative; overflow: hidden;
  }
  .cover::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 7px; background: rgba(0,0,0,0.18); }
  .cover .ctop { font-family: var(--font-display); font-size: 13px; font-weight: 800; line-height: 1.1; letter-spacing: 0.2px; text-transform: uppercase; }
  .cover .cmid { font-size: 8.5px; font-weight: 600; margin-top: 5px; line-height: 1.25; opacity: 0.95; }
  .cover .cnum { font-family: var(--font-display); font-size: 28px; font-weight: 800; line-height: 1; margin: 5px 0; }
  .cover-blue { background: linear-gradient(160deg, #2b6fd6, #14478f); }
  .cover-green { background: linear-gradient(160deg, #2f7d57, #14502f); }
  .cover-black { background: linear-gradient(160deg, #2a2a30, #141417); transform: rotate(2deg); }
  .cover-black .flag {
    width: 42px; height: 27px; margin-top: auto;
    background: linear-gradient(135deg, transparent 46%, #f7d417 46%, #f7d417 54%, transparent 54%), #2f6cf0;
    border-radius: 3px;
  }
  .coffee { position: absolute; top: 16px; right: 14px; width: 28px; height: 24px; background: #1c1c1f; border-radius: 0 0 40% 40%; box-shadow: 0 0 0 3px #e7ddc9; }

  /* ---------- Journey CTA ---------- */
  .journey-sec { padding-top: var(--sy); padding-bottom: var(--sy); }
  .journey {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
  }
  .journey-copy { padding: 0; }
  .journey h2 { font-size: 50px; font-weight: 800; letter-spacing: 1px; line-height: 1.12; margin: 18px 0 0; }
  .journey p { color: var(--gray); font-size: 18.5px; font-weight: 500; line-height: 1.7; max-width: 420px; margin: 22px 0 34px; }
  .journey-visual { position: relative; min-height: 470px; }
  .journey-visual .float-circles { transform: scale(0.9); }
  .journey-visual .hero-photo { width: 336px; bottom: -22px; }
  .journey-visual .badge-students { top: 44px; left: 4px; }
  .journey-visual .badge-phrases { bottom: 56px; right: 0; }

  /* ---------- Footer ---------- */
  footer { background: var(--footer); color: #c3cbdb; }
  .footer-top {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 40px;
    padding-top: 72px;
    padding-bottom: 52px;
  }
  .footer-brand .logo-name { color: #fff; font-size: 21px; }
  .footer-brand .tag { font-size: 15px; color: #8a94a8; margin: 14px 0 20px; max-width: 290px; line-height: 1.6; }
  .socials { display: flex; gap: 10px; }
  .socials a { width: 38px; height: 38px; border-radius: 10px; background: rgba(255,255,255,0.08); display: grid; place-items: center; transition: background .2s ease, transform .2s ease; }
  .socials a:hover { background: var(--blue); transform: translateY(-2px); }
  .footer-col h3 { font-family: var(--font-display); color: #fff; font-size: 15px; font-weight: 700; letter-spacing: 0.4px; text-transform: uppercase; margin-bottom: 18px; }
  .footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 13px; }
  .footer-col a { font-size: 15.5px; color: #aeb7c9; transition: color .18s ease; }
  .footer-col a:hover { color: #fff; }
  .footer-bottom { border-top: 1px solid rgba(255,255,255,0.09); display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 24px; padding-bottom: 32px; font-size: 14.5px; color: #7d8aa3; }
  .footer-bottom .fb-links { display: flex; gap: 22px; }
  .footer-bottom a:hover { color: #fff; }

  /* ---------- Responsive ---------- */
  @media (max-width: 980px) {
    :root { --gutter: 28px; --sy: 76px; }
    .header-inner { flex-wrap: wrap; gap: 14px; }
    nav { order: 3; width: 100%; }
    nav ul { justify-content: center; flex-wrap: wrap; gap: 18px 22px; }
    .hero-inner { grid-template-columns: 1fr; padding-top: 56px; }
    .hero h1 { font-size: 50px; white-space: normal; }
    .hero-visual { order: -1; }
    .everything { grid-template-columns: 1fr; gap: 44px; }
    .journey { grid-template-columns: 1fr; }
    .journey-copy { padding: 0 0 8px; }
    .journey h2 { font-size: 40px; }
    .cards { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
    .fb-inner { flex-wrap: wrap; gap: 22px 0; }
    .fb-item { flex: 0 0 50%; justify-content: flex-start; padding-left: 8px; }
    .fb-item:not(:last-child) { border-right: none; }
    .sec-head h1, .sec-head h2, .everything h2 { font-size: 36px; }
    .popular .sec-head p { white-space: normal; }
    .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
    .footer-brand { grid-column: 1 / -1; }
  }
  @media (max-width: 560px) {
    :root { --gutter: 20px; }
    .header-inner .btn { padding: 11px 18px; font-size: 13.5px; }
    .logo-name { font-size: 17px; }
    .hero h1 { font-size: 39px; }
    .hero-visual, .journey-visual { min-height: 430px; }
    .float-circles, .journey-visual .float-circles { transform: scale(0.62); }
    .hero-photo, .journey-visual .hero-photo { width: 242px; bottom: -10px; }
    .badge-students { left: 0; } .badge-phrases, .journey-visual .badge-phrases { right: 0; }
    .perfect-for { justify-content: flex-start; gap: 14px 20px; }
    .pf-label, .pf-item { font-size: 15.5px; }
    .fb-item { flex: 0 0 100%; }
    .footer-top { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
  }

  /* ===== Listing pages (/courses, /books) ===== */
  .popular.listing { padding-top: 64px; min-height: 60vh; }
  .cards-empty--dark { color: var(--gray); }
  .listing-cross { text-align: center; margin-top: 56px; }
  .listing-cross p { color: rgba(255, 255, 255, 0.9); font-size: 16px; font-weight: 600; margin-bottom: 16px; }

  /* ===== Blog list ===== */
  /* Blog list: header sits in its own tinted band, posts below on white */
  .blog-head { background: var(--bg-soft); border-bottom: 1px solid var(--line); padding: 66px 0 58px; }
  .blog-head .sec-head { margin-bottom: 0; }
  .blog-head .sec-head h1 { color: var(--ink); margin-top: 0; }
  .blog-sec { padding-top: 64px; padding-bottom: 88px; min-height: 40vh; }
  .post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; max-width: 1040px; margin: 0 auto; }
  .post-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--sh-sm); transition: transform .2s ease, box-shadow .2s ease; }
  .post-card:hover { transform: translateY(-6px); box-shadow: var(--sh-md); }
  .post-card-link { display: block; color: inherit; }
  .post-cover { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
  .post-card-body { padding: 22px 24px 26px; }
  .post-card-body h3 { font-size: 20px; font-weight: 700; line-height: 1.3; margin-bottom: 10px; }
  .post-card-body p { color: var(--gray); font-size: 15.5px; line-height: 1.6; margin-bottom: 14px; }
  .post-card-body time { color: var(--muted); font-size: 13.5px; font-weight: 600; }

  /* ===== Single post ===== */
  .post { padding-top: 56px; padding-bottom: 88px; }
  .post-wrap { max-width: 760px; }
  .post-back { color: var(--blue); font-weight: 600; font-size: 15px; display: inline-block; margin-bottom: 22px; }
  .post-back:hover { text-decoration: underline; }
  .post h1 { font-size: 44px; font-weight: 800; letter-spacing: -1px; line-height: 1.14; }
  .post-date { display: block; color: var(--muted); font-weight: 600; font-size: 15px; margin-top: 14px; }
  .post-hero { width: 100%; border-radius: var(--r-lg); margin: 28px 0; }
  .post-body { font-size: 18px; line-height: 1.8; color: #1f2740; margin-top: 28px; }
  .post-body h2 { font-size: 30px; font-weight: 800; letter-spacing: -0.5px; margin: 38px 0 14px; }
  .post-body h3 { font-size: 23px; font-weight: 700; margin: 30px 0 12px; }
  .post-body p { margin: 0 0 20px; }
  .post-body ul, .post-body ol { margin: 0 0 20px 1.3em; }
  .post-body li { margin-bottom: 8px; }
  .post-body a { color: var(--blue); text-decoration: underline; }
  .post-body blockquote { border-left: 4px solid var(--blue-100); padding: 4px 0 4px 18px; color: var(--gray); margin: 0 0 20px; }
  .post-body code { background: var(--bg-soft); padding: 2px 6px; border-radius: 6px; font-size: 0.9em; }
  .post-body pre { background: var(--ink); color: #fff; padding: 18px; border-radius: var(--r-md); overflow: auto; margin: 0 0 22px; }
  .post-body pre code { background: none; padding: 0; color: inherit; }
  .post-body img { max-width: 100%; border-radius: var(--r-md); margin: 8px 0 20px; }

  /* ===== 404 ===== */
  .error-sec { padding: 120px 0; min-height: 60vh; display: grid; place-items: center; }
  .error-sec h1 { font-size: 86px; font-weight: 800; letter-spacing: -2px; color: var(--blue); line-height: 1; }
  .error-sec p { color: var(--gray); font-size: 19px; margin: 14px 0 28px; }

  @media (max-width: 980px) {
    .post-grid { grid-template-columns: 1fr; max-width: 460px; }
    .post h1 { font-size: 34px; }
    .post-body { font-size: 17px; }
  }

  /* ===== Email signup (inline band, no card) ===== */
  .signup-sec { background: var(--blue-50); border-top: 1px solid var(--blue-100); border-bottom: 1px solid var(--blue-100); padding: 52px 0; }
  .signup-band { display: flex; align-items: center; justify-content: space-between; gap: 36px; flex-wrap: wrap; }
  .signup-band-text { display: flex; align-items: center; gap: 20px; }
  .signup-ico { width: 58px; height: 58px; flex: none; border-radius: 16px; background: var(--grad-blue-radial); display: grid; place-items: center; box-shadow: 0 10px 24px rgba(47, 108, 240, 0.30); }
  .signup-band-text h2 { font-size: 27px; font-weight: 800; letter-spacing: -0.5px; line-height: 1.15; }
  .signup-band-text p { color: var(--gray); font-size: 16px; margin-top: 5px; max-width: 440px; }
  .signup-form { display: flex; gap: 10px; flex-wrap: wrap; }
  .signup-form input[type="email"] {
    font-family: inherit; font-size: 15px; padding: 14px 18px; min-width: 244px;
    border: 1.5px solid var(--blue-100); border-radius: var(--r-pill); background: #fff; color: var(--ink);
  }
  .signup-form input[type="email"]:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(47, 108, 240, 0.15); }
  .signup-success { margin: 0; font-weight: 700; color: var(--blue); font-size: 17px; }
  .signup-success a { color: var(--blue); text-decoration: underline; }
  @media (max-width: 820px) {
    .signup-band { flex-direction: column; align-items: flex-start; gap: 24px; }
    .signup-form { width: 100%; }
    .signup-form input[type="email"] { flex: 1 1 auto; min-width: 0; }
  }

  /* ===== Contact page (not a card; centers in the space above the footer) ===== */
  /* On desktop, let <main> fill the gap between header and footer so the
     contact content can center vertically while the footer stays at the bottom. */
  @media (min-width: 861px) {
    body.page-contact > main { display: flex; flex-direction: column; }
    body.page-contact .contact-page { flex: 1 0 auto; }
  }
  .contact-page {
    position: relative; overflow: hidden; background: var(--bg-soft);
    display: flex; flex-direction: column; justify-content: center;
    padding: 72px 0;
  }
  /* soft decorative glow so the page has depth on large screens */
  .contact-page::before {
    content: ""; position: absolute; top: -180px; right: -140px;
    width: 560px; height: 560px; border-radius: 50%;
    background: var(--grad-blue-radial); opacity: 0.16; filter: blur(8px);
    pointer-events: none;
  }
  .contact-page::after {
    content: ""; position: absolute; bottom: -160px; left: -120px;
    width: 360px; height: 360px; border-radius: 50%;
    background: var(--blue-100); opacity: 0.5; filter: blur(10px);
    pointer-events: none;
  }
  .contact-grid {
    position: relative; z-index: 1;
    display: grid; grid-template-columns: 1fr 1.08fr; gap: 80px;
    max-width: 1060px; margin: 0 auto; align-items: center; width: 100%;
  }
  .contact-eyebrow {
    display: inline-block; font-size: 12.5px; font-weight: 800; letter-spacing: 1.6px;
    text-transform: uppercase; color: var(--blue); margin-bottom: 18px;
  }
  .contact-info h1 { font-size: 50px; font-weight: 800; letter-spacing: -1.6px; line-height: 1.02; margin-bottom: 18px; }
  .contact-lead { color: var(--muted); font-size: 18px; line-height: 1.6; margin-bottom: 36px; max-width: 400px; }
  .contact-points { list-style: none; display: flex; flex-direction: column; gap: 16px; }
  .contact-points li { display: flex; align-items: center; gap: 13px; font-size: 15.5px; font-weight: 600; color: var(--ink); }
  .cp-tick { flex: none; width: 26px; height: 26px; display: inline-flex; align-items: center; justify-content: center; background: var(--blue); border-radius: 50%; box-shadow: 0 4px 11px rgba(47, 108, 240, 0.3); }

  .contact-form {
    display: flex; flex-direction: column; gap: 18px;
    background: #fff; padding: 36px; border-radius: var(--r-lg);
    border: 1px solid var(--line); box-shadow: var(--sh-md);
  }
  .contact-row { display: flex; gap: 16px; }
  .cfield { display: flex; flex-direction: column; gap: 7px; flex: 1; }
  .cfield > span { font-size: 13.5px; font-weight: 700; color: var(--ink); }
  .contact-form input, .contact-form textarea {
    font-family: inherit; font-size: 16px; padding: 13px 15px; width: 100%;
    border: 1.5px solid var(--line); border-radius: var(--r-md); background: var(--bg-soft); color: var(--ink);
    transition: border-color .15s, box-shadow .15s, background .15s;
  }
  .contact-form input::placeholder, .contact-form textarea::placeholder { color: #9aa6b8; }
  .contact-form input:focus, .contact-form textarea:focus { outline: none; background: #fff; border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-50); }
  .contact-form textarea { resize: vertical; min-height: 140px; }
  .contact-form .btn { align-self: stretch; margin-top: 6px; }
  .contact-form-note { text-align: center; font-size: 13.5px; color: var(--muted); margin-top: -4px; }

  /* Thank-you state */
  .contact-thanks { max-width: 560px; margin: 0 auto; text-align: center; position: relative; z-index: 1; }
  .contact-thanks-icon { width: 76px; height: 76px; display: inline-flex; align-items: center; justify-content: center; background: var(--blue); border-radius: 50%; margin-bottom: 24px; box-shadow: 0 12px 30px rgba(47, 108, 240, 0.32); }
  .contact-thanks h1 { font-size: 40px; font-weight: 800; letter-spacing: -0.9px; margin-bottom: 12px; }
  .contact-thanks p { color: var(--muted); font-size: 18px; margin-bottom: 30px; }

  @media (max-width: 860px) {
    .contact-page { min-height: 0; padding: 64px 0 80px; display: block; }
    .contact-grid { grid-template-columns: 1fr; gap: 40px; max-width: 560px; align-items: start; }
    .contact-info h1 { font-size: 38px; letter-spacing: -1px; }
    .contact-lead { max-width: none; }
  }
  @media (max-width: 520px) {
    .contact-form { padding: 24px 20px; }
    .contact-row { flex-direction: column; gap: 18px; }
  }

  /* ===== Contact bar (homepage, links to /contact) ===== */
  .contact-bar { background: var(--blue-50); border-top: 1px solid var(--blue-100); }
  .contact-bar-inner { display: flex; align-items: center; justify-content: center; gap: 24px; padding: 28px 0; flex-wrap: wrap; }
  .contact-bar-text { font-family: var(--font-display); font-size: 19px; font-weight: 700; color: var(--ink); }
  @media (max-width: 600px) {
    .contact-bar-inner { flex-direction: column; gap: 16px; text-align: center; }
  }

  /* Honeypot — off-screen for humans, bait for bots */
  .hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }

  @media (max-width: 720px) {
    .contact-row { flex-direction: column; }
  }

  /* ===== Legal pages (privacy / terms) ===== */
  .legal { padding: 64px 0 96px; min-height: 60vh; }
  .legal-wrap { max-width: 760px; }
  .legal-wrap > h1 { font-size: 42px; font-weight: 800; letter-spacing: -1px; line-height: 1.1; }
  .legal-wrap .post-body { margin-top: 22px; }
  .legal-wrap .post-body em { color: var(--muted); }

  /* ===== Notice page (unsubscribe, etc.) ===== */
  .notice-page { padding: 80px 24px 110px; min-height: 56vh; display: grid; place-items: center; }
  .notice-card { max-width: 520px; text-align: center; background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); box-shadow: var(--sh-md); padding: 48px 40px; }
  .notice-card h1 { font-size: 28px; font-weight: 800; letter-spacing: -0.5px; }
  .notice-card p { margin-top: 14px; color: var(--muted); line-height: 1.6; }
  .notice-card form { margin-top: 26px; }
  .notice-card .btn { margin-top: 26px; }
  .notice-card form .btn { margin-top: 0; }
  .notice-sub { display: inline-block; margin-top: 18px; font-size: 14px; color: var(--muted); }
  .notice-sub-text { font-size: 14px; }

  /* ===== About teaser (homepage) ===== */
  .about-teaser { background: var(--bg-soft); padding: 74px 0; }
  .about-teaser-inner { max-width: 680px; margin: 0 auto; text-align: center; }
  .about-teaser-inner h2 { font-size: 38px; font-weight: 800; letter-spacing: -0.8px; line-height: 1.12; margin: 18px 0 16px; }
  .about-teaser-inner p { color: var(--gray); font-size: 18px; line-height: 1.6; margin-bottom: 28px; }

  /* ===== About page ===== */
  .about-hero { background: var(--bg-soft); padding: 76px 0 56px; text-align: center; }
  .about-hero .wrap { max-width: 760px; }
  .about-hero h1 { font-size: 46px; font-weight: 800; letter-spacing: -1.2px; line-height: 1.08; margin: 18px 0 20px; }
  .about-lead { color: var(--gray); font-size: 19px; line-height: 1.65; }
  .about-body { padding: 60px 0 12px; }
  .about-prose { max-width: 760px; }
  .about-prose > p { color: #2b3650; font-size: 17.5px; line-height: 1.8; margin-bottom: 22px; }
  .about-prose h2 { font-size: 30px; font-weight: 800; letter-spacing: -0.6px; margin: 42px 0 18px; }
  .about-checks { list-style: none; display: flex; flex-direction: column; gap: 18px; margin-top: 6px; }
  .about-checks li { display: flex; align-items: flex-start; gap: 14px; font-size: 17px; line-height: 1.6; color: #2b3650; }
  .about-checks strong { color: var(--ink); font-weight: 700; }
  .ac-tick { flex: none; width: 26px; height: 26px; margin-top: 2px; display: inline-flex; align-items: center; justify-content: center; background: var(--blue); border-radius: 50%; }
  .about-cta { text-align: center; padding: 56px 0 96px; }
  .about-cta h2 { font-size: 30px; font-weight: 800; letter-spacing: -0.6px; margin-bottom: 24px; }
  .about-cta-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
  @media (max-width: 700px) {
    .about-teaser-inner h2 { font-size: 31px; }
    .about-hero h1 { font-size: 36px; }
    .about-prose h2, .about-cta h2 { font-size: 26px; }
  }

  /* ===================== Admin ===================== */
  .admin-top { background: var(--footer); color: #fff; position: sticky; top: 0; z-index: 50; }
  .admin-top-inner { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); height: 60px; display: flex; align-items: center; gap: 28px; }
  .admin-brand { font-family: var(--font-display); font-weight: 800; font-size: 17px; color: #fff; }
  .admin-brand span { color: var(--blue); }
  .admin-nav { display: flex; gap: 22px; margin-right: auto; }
  .admin-nav a { font-size: 15px; font-weight: 600; color: #aeb7c9; }
  .admin-nav a:hover, .admin-nav a.on { color: #fff; }
  .admin-actions { display: flex; align-items: center; gap: 18px; }
  .admin-actions a { font-size: 14.5px; color: #aeb7c9; font-weight: 600; }
  .admin-actions a:hover { color: #fff; }
  .admin-main { padding-top: 40px; padding-bottom: 80px; }
  .admin-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 26px; }
  .admin-head h1 { font-size: 30px; font-weight: 800; letter-spacing: -0.5px; }
  .count-pill { display: inline-block; font-size: 14px; font-weight: 700; color: var(--blue); background: var(--blue-50); padding: 2px 12px; border-radius: 999px; vertical-align: middle; margin-left: 6px; }
  .msg-text { max-width: 380px; white-space: pre-wrap; color: var(--ink); font-size: 14.5px; line-height: 1.5; }
  .msg-unread td { background: var(--blue-50); }
  .msg-unread .msg-text { font-weight: 600; }

  .btn-link { background: none; border: none; color: var(--blue); font-weight: 600; font-size: 15px; cursor: pointer; font-family: inherit; }
  .btn-link:hover { text-decoration: underline; }
  .btn-sm { display: inline-block; font-size: 13.5px; font-weight: 600; padding: 6px 12px; border-radius: 8px; border: 1px solid var(--line); background: #fff; color: var(--ink); cursor: pointer; font-family: inherit; }
  .btn-sm:hover { border-color: var(--blue); color: var(--blue); }
  .btn-danger { color: #c0392b; }
  .btn-danger:hover { border-color: #c0392b; color: #c0392b; }

  .admin-table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; }
  .admin-table th, .admin-table td { text-align: left; padding: 14px 16px; border-bottom: 1px solid var(--line); font-size: 15px; }
  .admin-table th { background: var(--bg-soft); font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.4px; color: var(--muted); }
  .admin-table tr:last-child td { border-bottom: none; }
  .admin-table .muted { color: var(--muted); }
  .row-actions { display: flex; gap: 8px; justify-content: flex-end; }
  .pill { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12.5px; font-weight: 700; background: var(--blue-50); color: var(--blue); text-transform: capitalize; }
  .pill-on { background: #e6f6ec; color: #1f8a4c; }

  .admin-form { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); padding: 28px; display: flex; flex-direction: column; gap: 18px; }
  /* Product form: show only the link fields relevant to the selected type */
  .admin-form .book-only, .admin-form .course-only { display: flex; flex-direction: column; gap: 18px; }
  .admin-form[data-type="course"] .book-only { display: none; }
  .admin-form[data-type="book"] .course-only { display: none; }
  .fld { display: flex; flex-direction: column; gap: 7px; }
  .fld-label { font-weight: 700; font-size: 14px; color: var(--ink); }
  .fld-input { font-family: inherit; font-size: 15px; padding: 11px 13px; border: 1.5px solid var(--line); border-radius: var(--r-md); background: #fff; color: var(--ink); width: 100%; }
  .fld-input:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(47,108,240,0.15); }
  textarea.fld-input { resize: vertical; line-height: 1.6; }
  .fld-hint { font-size: 13px; color: var(--muted); }
  .fld-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
  .fld-check { flex-direction: row; align-items: center; gap: 10px; }
  .fld-check input { width: 18px; height: 18px; }
  .fset { border: 1px solid var(--line); border-radius: var(--r-md); padding: 18px 20px; display: flex; flex-direction: column; gap: 16px; }
  .fset legend { font-weight: 700; font-size: 14px; padding: 0 8px; color: var(--blue); }
  .settings-tabs { display: flex; gap: 4px; flex-wrap: wrap; border-bottom: 1px solid var(--line); margin-bottom: 6px; }
  .settings-tabs .tab { font-family: inherit; font-size: 14.5px; font-weight: 700; color: var(--muted); background: none; border: none; border-bottom: 2px solid transparent; padding: 10px 16px; margin-bottom: -1px; cursor: pointer; }
  .settings-tabs .tab:hover { color: var(--ink); }
  .settings-tabs .tab.on { color: var(--blue); border-bottom-color: var(--blue); }
  .tab-panel { display: flex; flex-direction: column; gap: 18px; }
  .tab-panel[hidden] { display: none; }
  .footer-editor { display: flex; flex-direction: column; gap: 22px; }
  .fcol-head { font-weight: 700; font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.4px; color: var(--muted); margin-bottom: 10px; }
  .fcol-head-field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
  .fcol-head-field > span { font-weight: 700; font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.4px; color: var(--muted); }
  .fcol-head-field .fld-input { max-width: 260px; font-weight: 700; }
  .frows { display: flex; flex-direction: column; gap: 8px; margin-bottom: 10px; }
  .frow { display: flex; align-items: center; gap: 8px; }
  .frow .fld-input { width: auto; min-width: 0; }
  .frow [data-label] { flex: 0 0 32%; }
  .frow [data-url] { flex: 1 1 auto; }
  .frow-on { display: inline-flex; align-items: center; gap: 5px; font-size: 13px; font-weight: 600; color: var(--gray); white-space: nowrap; }
  .frow-on input { width: auto; }
  .cover-preview { max-width: 160px; border-radius: var(--r-md); border: 1px solid var(--line); margin-bottom: 6px; }
  .cover-current { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 6px; }
  .cover-current .cover-preview { margin-bottom: 0; }

  .form-error { background: #fdecea; color: #c0392b; border: 1px solid #f3c4bf; padding: 12px 16px; border-radius: var(--r-md); font-weight: 600; font-size: 14.5px; }
  .form-ok { background: #e6f6ec; color: #1f8a4c; border: 1px solid #b9e3c6; padding: 12px 16px; border-radius: var(--r-md); font-weight: 600; font-size: 14.5px; }

  /* Login */
  .login { min-height: 100vh; display: grid; place-items: center; background: var(--bg-soft); padding: 24px; }
  .login-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-xl); box-shadow: var(--sh-md); padding: 40px; width: 100%; max-width: 380px; display: flex; flex-direction: column; gap: 18px; }
  .login-card h1 { font-size: 28px; font-weight: 800; text-align: center; }
  .login-sub { text-align: center; color: var(--muted); font-weight: 600; margin-top: -12px; }

  @media (max-width: 640px) {
    .admin-top-inner { gap: 16px; padding: 0 var(--gutter); }
    .admin-nav { gap: 14px; }
    .fld-row { grid-template-columns: 1fr; }
  }

  /* ===== Soon-back / maintenance page ===== */
  .maintenance { min-height: 100vh; display: grid; place-items: center; background: var(--grad-blue-radial); padding: 24px; }
  .maintenance-card { background: #fff; border-radius: var(--r-xl); box-shadow: var(--sh-lg); padding: 56px 48px; max-width: 480px; text-align: center; }
  .maintenance-card .logo-mark { display: inline-grid; place-items: center; margin-bottom: 16px; }
  .maintenance-card h1 { font-size: 34px; font-weight: 800; letter-spacing: -0.5px; }
  .maintenance-card p { color: var(--gray); font-size: 18px; margin-top: 12px; line-height: 1.6; }
  .maint-preview { display: inline-block; margin-top: 24px; color: var(--blue); font-weight: 700; font-size: 15px; }
  .maint-preview:hover { text-decoration: underline; }

  /* ===== Admin preview bar (sticky, very top) ===== */
  .preview-bar { position: sticky; top: 0; z-index: 60; height: 40px; background: var(--ink); color: #fff; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 0 20px; font-size: 13.5px; font-weight: 600; white-space: nowrap; overflow-x: auto; }
  .preview-bar-tag { color: #ffd96a; }
  .preview-bar-links { display: flex; gap: 16px; flex-shrink: 0; }
  .preview-bar-links a { color: #c3cbdb; }
  .preview-bar-links a:hover { color: #fff; }
  /* In preview, the sticky site header docks just below the 40px preview bar. */
  body.preview header { top: 40px; }