:root {
    --bg: oklch(13% 0 0);              /* near black */
    --bg-alt: oklch(19% 0 0);          /* dark gray */
    --bg-translucent: oklch(13% 0 0 / 0.84);
    --text: oklch(97% 0 0);            /* near white */
    --text-dim: oklch(70% 0 0);        /* mid gray */
    --accent: oklch(48% 0.09 315);     /* dusty plum */
    --accent-2: oklch(58% 0.07 315);   /* lighter dusty plum */
    --accent-deep: oklch(24% 0.04 315);
    --hairline: oklch(100% 0 0 / 0.08);
    --hairline-strong: oklch(100% 0 0 / 0.18);
    --font-display: 'Cormorant Garamond', serif;
    --font-body: 'Public Sans', sans-serif;
  }

  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
  }
  a { color: var(--accent); text-decoration: none; }
  a:hover { color: var(--accent-2); }
  ::selection { background: var(--accent); color: var(--bg); }
  input::placeholder { color: var(--text-dim); }
  img, .placeholder { max-width: 100%; }

  .container { max-width: 1200px; margin: 0 auto; padding: 0 48px; }

  /* Nav */
  .nav {
    position: sticky; top: 0; z-index: 50;
    display: flex; align-items: center; justify-content: space-between;
    padding: 22px 48px;
    background: var(--bg-translucent);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--hairline);
  }
  .nav__logo {
    font-family: var(--font-display); font-size: 22px;
    letter-spacing: 0.08em; font-weight: 600; color: var(--text);
  }
  .nav__links { display: flex; align-items: center; gap: 8px; }
  .nav__link { padding: 10px 16px; font-size: 15px; color: var(--text-dim); transition: color .15s; }
  .nav__link:hover { color: var(--text); }
  .nav__cta {
    padding: 10px 18px; font-size: 15px; font-weight: 600;
    color: var(--bg); background: var(--accent); border-radius: 2px; transition: background .15s;
  }
  .nav__cta:hover { background: var(--accent-2); color: var(--bg); }
  .nav__cta--outline {
    padding: 10px 18px; font-size: 15px; font-weight: 600;
    color: var(--accent-2); border: 1px solid var(--accent-2); border-radius: 2px; transition: .15s;
  }
  .nav__cta--outline:hover { background: var(--accent-2); color: var(--bg); }

  /* Hero */
  .hero {
    min-height: 88vh; display: flex; align-items: center; gap: 64px;
    padding: 64px 48px; max-width: 1200px; margin: 0 auto; flex-wrap: wrap;
  }
  .hero__copy { flex: 1.1; min-width: 320px; }
  .eyebrow {
    font-size: 13px; letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--accent-2); margin-bottom: 18px;
  }
  .hero__title {
    font-family: var(--font-display); font-weight: 500;
    font-size: 76px; line-height: 1.02; margin: 0 0 26px; color: var(--text);
  }
  .hero__tagline {
    font-size: 18px; line-height: 1.65; color: var(--text-dim);
    max-width: 460px; margin: 0 0 36px;
  }
  .btn-row { display: flex; gap: 16px; flex-wrap: wrap; }
  .btn {
    padding: 15px 28px; font-size: 15px; font-weight: 600; border-radius: 2px;
    display: inline-block; transition: .15s; cursor: pointer; border: none;
  }
  .btn--solid { background: var(--accent); color: var(--bg); }
  .btn--solid:hover { background: var(--accent-2); color: var(--bg); }
  .btn--ghost { border: 1px solid var(--hairline-strong); color: var(--text); background: transparent; font-weight: 500; }
  .btn--ghost:hover { border-color: var(--accent-2); color: var(--accent-2); }

  .hero__image { flex: 0.9; min-width: 280px; display: flex; justify-content: center; }
  .placeholder {
    width: 100%; background: var(--bg-alt);
    background-image: repeating-linear-gradient(135deg, var(--hairline) 0px, var(--hairline) 1px, transparent 1px, transparent 14px);
    border: 1px solid var(--hairline-strong);
    display: flex; align-items: center; justify-content: center; text-align: center; padding: 20px;
  }
  .placeholder span {
    font-family: var(--font-body), monospace; font-size: 12px; letter-spacing: 0.1em;
    color: var(--text-dim); text-transform: uppercase;
  }
  .placeholder--portrait { max-width: 340px; aspect-ratio: 3 / 4; }
  .placeholder--book { aspect-ratio: 2 / 3; }

  /* About */
  .about {
    padding: 100px 48px; background: var(--bg-alt);
    border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline);
  }
  .about__inner { max-width: 760px; margin: 0 auto; }
  .about h2 {
    font-family: var(--font-display); font-weight: 500; font-size: 38px;
    margin: 0 0 24px; color: var(--text);
  }
  .about p { font-size: 17px; line-height: 1.75; color: var(--text-dim); margin: 0 0 16px; }
  .about p:last-child { margin-bottom: 0; }

  /* Books */
  .books { padding: 110px 48px; max-width: 1200px; margin: 0 auto; }
  .books__head {
    display: flex; align-items: baseline; justify-content: space-between;
    margin-bottom: 56px; flex-wrap: wrap; gap: 16px;
  }
  .books__head h2 {
    font-family: var(--font-display); font-weight: 500; font-size: 44px; margin: 0; color: var(--text);
  }
  .books__head p { max-width: 420px; font-size: 15px; color: var(--text-dim); line-height: 1.6; margin: 0; }

  .book {
    display: grid; grid-template-columns: 280px 1fr; gap: 56px; align-items: start;
    padding-bottom: 56px; border-bottom: 1px solid var(--hairline);
  }
  .book__series-label {
    font-size: 13px; letter-spacing: 0.18em; text-transform: uppercase;
    color: var(--accent); margin-bottom: 10px;
  }
  .book h3 {
    font-family: var(--font-display); font-weight: 500; font-size: 34px;
    margin: 0 0 16px; color: var(--text);
  }
  .book p { font-size: 16px; line-height: 1.7; color: var(--text-dim); max-width: 520px; margin: 0 0 24px; }

  .books__footnote { padding-top: 44px; text-align: center; }
  .books__footnote p {
    font-size: 20px; color: var(--text-dim); font-style: italic; font-family: var(--font-display);
  }

  /* Newsletter */
  .newsletter { padding: 120px 48px; background: var(--accent-deep); border-top: 1px solid var(--hairline); }
  .newsletter__inner { max-width: 640px; margin: 0 auto; text-align: center; }
  .newsletter .eyebrow { color: var(--text); opacity: 0.7; }
  .newsletter h2 {
    font-family: var(--font-display); font-weight: 500; font-size: 42px;
    margin: 0 0 20px; color: var(--text);
  }
  .newsletter p.sub { font-size: 16px; line-height: 1.6; color: var(--text); opacity: 0.75; margin: 0 0 36px; }
  .newsletter__form { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
  .newsletter__form input {
    flex: 1; min-width: 240px; max-width: 320px; padding: 15px 18px;
    background: var(--bg); border: 1px solid var(--hairline-strong); color: var(--text);
    font-size: 15px; border-radius: 2px; font-family: var(--font-body);
  }
  .newsletter__form button {
    padding: 15px 30px; background: var(--text); color: var(--accent-deep);
    font-size: 15px; font-weight: 700; border: none; border-radius: 2px; cursor: pointer; transition: .15s;
    font-family: var(--font-body);
  }
  .newsletter__form button:hover { background: var(--accent-2); }
  .newsletter__form input:disabled,
  .newsletter__form button:disabled { opacity: 0.45; cursor: not-allowed; }
  .newsletter__note { margin-top: 18px; font-size: 14px; color: var(--text); opacity: 0.7; font-style: italic; }
  .newsletter__thanks { margin-top: 18px; font-size: 14px; color: var(--text); opacity: 0.85; display: none; }
  .newsletter__thanks.show { display: block; }

  /* Contact */
  .contact { padding: 90px 48px; text-align: center; border-top: 1px solid var(--hairline); }
  .contact__inner { max-width: 480px; margin: 0 auto; }
  .contact__email {
    display: inline-block; font-family: var(--font-display); font-size: 26px;
    color: var(--text); margin-bottom: 26px;
  }
  .contact__email:hover { color: var(--accent-2); }
  .contact__social { display: flex; justify-content: center; gap: 28px; flex-wrap: wrap; }
  .contact__social-link { font-size: 14px; letter-spacing: 0.04em; color: var(--text-dim); }
  .contact__social-link:hover { color: var(--accent-2); }

  /* Footer */
  .footer {
    padding: 40px 48px; display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 16px; border-top: 1px solid var(--hairline);
  }
  .footer__logo { font-family: var(--font-display); font-size: 17px; letter-spacing: 0.06em; color: var(--text-dim); }
  .footer__copy { font-size: 13px; color: var(--text-dim); }

  /* ---- Responsive ---- */

  /* Tablet / small laptop */
  @media (max-width: 1024px) {
    .nav { padding: 20px 32px; }
    .hero { gap: 44px; padding: 56px 32px; min-height: 0; }
    .hero__title { font-size: 64px; }
    .about, .books, .newsletter, .contact { padding-left: 32px; padding-right: 32px; }
    .about { padding-top: 80px; padding-bottom: 80px; }
    .books { padding-top: 88px; padding-bottom: 88px; }
    .newsletter { padding-top: 96px; padding-bottom: 96px; }
    .book { grid-template-columns: 220px 1fr; gap: 40px; }
    .footer { padding: 36px 32px; }
  }

  /* Nav wraps to its own row before it gets cramped */
  @media (max-width: 860px) {
    .nav {
      flex-direction: column; align-items: stretch; gap: 14px; padding: 16px 24px;
    }
    .nav__logo { font-size: 19px; text-align: center; }
    .nav__links {
      justify-content: center; flex-wrap: wrap; gap: 8px;
    }
    .nav__link, .nav__cta, .nav__cta--outline {
      padding: 10px 14px; font-size: 14px;
    }
  }

  /* Phones */
  @media (max-width: 720px) {
    .hero {
      flex-direction: column-reverse; align-items: stretch;
      gap: 36px; padding: 44px 22px 56px;
    }
    .hero__copy, .hero__image { min-width: 0; width: 100%; }
    .hero__title { font-size: 46px; margin-bottom: 20px; }
    .hero__tagline { font-size: 17px; max-width: none; margin-bottom: 28px; }
    .placeholder--portrait { max-width: 240px; margin: 0 auto; }

    .eyebrow { font-size: 12px; letter-spacing: 0.18em; margin-bottom: 14px; }

    .btn-row { gap: 12px; }
    .btn { width: 100%; text-align: center; padding: 16px 22px; }

    .about { padding: 60px 22px; }
    .about h2 { font-size: 30px; margin-bottom: 20px; }
    .about p { font-size: 16px; }

    .books { padding: 64px 22px; }
    .books__head { margin-bottom: 36px; }
    .books__head h2 { font-size: 36px; }
    .book { grid-template-columns: 1fr; gap: 28px; padding-bottom: 40px; }
    .book .placeholder--book { max-width: 200px; }
    .book h3 { font-size: 28px; }
    .book p { font-size: 15px; }

    .newsletter { padding: 68px 22px; }
    .newsletter h2 { font-size: 32px; }
    .newsletter p.sub { margin-bottom: 28px; }
    .newsletter__form { flex-direction: column; align-items: stretch; }
    .newsletter__form input { max-width: none; min-width: 0; width: 100%; padding: 16px 18px; }
    .newsletter__form button { width: 100%; padding: 16px 22px; }

    .contact { padding: 56px 22px; }
    .contact__email { font-size: 21px; word-break: break-word; }
    .contact__social { gap: 10px 22px; }
    .contact__social-link { padding: 6px 0; }

    .footer {
      padding: 28px 22px; flex-direction: column; align-items: flex-start; gap: 10px;
    }
  }

  /* Very small phones */
  @media (max-width: 380px) {
    .hero__title { font-size: 38px; }
    .about h2, .newsletter h2 { font-size: 27px; }
    .books__head h2 { font-size: 31px; }
    .nav__link, .nav__cta, .nav__cta--outline { padding: 9px 11px; font-size: 13px; }
  }