/* ==========================================================
   Opal Blake: mystery-noir author site
   Palette: deep teal + charcoal, cream text, champagne gold
   ========================================================== */
:root {
  --ink: #070d10;          /* near-black, matches logo artwork */
  --charcoal: #12181b;
  --charcoal-2: #1a2226;
  --teal-deep: #062a30;
  --teal: #0b3b42;
  --teal-soft: #145058;
  --cream: #f3ead8;
  --cream-dim: #d9cfbd;
  --gold: #d6b683;
  --gold-bright: #e8cc9a;
  --gold-deep: #a9895a;
  --line: rgba(214, 182, 131, 0.28);
  --radius: 14px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  --serif-display: "Bodoni Moda", "Didot", "Bodoni 72", Georgia, serif;
  --serif-body: "Lora", Georgia, "Times New Roman", serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --maxw: 1120px;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }

body {
  margin: 0;
  background: var(--charcoal);
  color: var(--cream);
  font-family: var(--serif-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--gold-bright); }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--gold-bright);
  outline-offset: 3px;
}
.container { width: min(100% - 2.5rem, var(--maxw)); margin-inline: auto; }

.skip-link {
  position: absolute; left: 1rem; top: -100px; z-index: 100;
  background: var(--gold); color: var(--ink); padding: .6rem 1rem; border-radius: 8px;
  font-family: var(--sans); font-weight: 600; text-decoration: none;
}
.skip-link:focus { top: 1rem; }

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(7, 13, 16, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(214, 182, 131, 0.14);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 64px; }
.nav-brand {
  display: inline-flex; align-items: center; gap: .6rem;
  color: var(--cream); text-decoration: none;
  font-family: var(--serif-display); font-size: 1.2rem; letter-spacing: .04em;
}
.nav-brand img { border-radius: 50%; border: 1px solid var(--line); }
.nav-links { display: flex; align-items: center; gap: 1.6rem; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  color: var(--cream-dim); text-decoration: none;
  font-family: var(--sans); font-size: .82rem; font-weight: 500;
  letter-spacing: .14em; text-transform: uppercase;
}
.nav-links a:hover { color: var(--gold-bright); }
.nav-links .nav-cta {
  color: var(--gold-bright); border: 1px solid var(--line);
  padding: .5rem .95rem; border-radius: 999px;
}
.nav-links .nav-cta:hover { background: rgba(214, 182, 131, 0.1); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  font-family: var(--sans); font-weight: 600; font-size: .9rem;
  letter-spacing: .12em; text-transform: uppercase; text-decoration: none;
  padding: 1rem 1.7rem; border-radius: 999px; cursor: pointer;
  border: 1px solid transparent;
  transition: transform .15s ease, background-color .2s ease, box-shadow .2s ease;
}
.btn-gold {
  background: linear-gradient(180deg, var(--gold-bright), var(--gold));
  color: #10181b;
  box-shadow: 0 10px 30px rgba(214, 182, 131, 0.22);
}
.btn-gold:hover { transform: translateY(-1px); box-shadow: 0 14px 36px rgba(214, 182, 131, 0.32); }
.btn-ghost { color: var(--cream); border-color: var(--line); background: transparent; }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold-bright); }
.btn.is-disabled {
  background: transparent; color: var(--cream-dim);
  border: 1px dashed rgba(217, 207, 189, 0.45);
  box-shadow: none; cursor: not-allowed; transform: none;
}

/* ---------- Shared section bits ---------- */
.section { padding: clamp(4.5rem, 9vw, 7.5rem) 0; position: relative; }
.eyebrow {
  margin: 0 0 .6rem;
  font-family: var(--sans); font-size: .78rem; font-weight: 600;
  letter-spacing: .28em; text-transform: uppercase; color: var(--gold);
}
.section-title {
  margin: 0 0 1.2rem;
  font-family: var(--serif-display); font-weight: 500;
  font-size: clamp(2.2rem, 5vw, 3.4rem); line-height: 1.1; letter-spacing: .01em;
  color: var(--cream);
}

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden; isolation: isolate;
  min-height: min(92vh, 820px);
  display: grid; place-items: center;
  padding: 5rem 0 6rem;
  background:
    radial-gradient(ellipse 60% 55% at 45% 45%, rgba(11, 59, 66, 0.55), transparent 70%),
    linear-gradient(180deg, #050b0e 0%, var(--ink) 55%, var(--charcoal) 100%);
  text-align: center;
}
.hero-lamp {
  position: absolute; inset: 0 0 0 auto; width: min(34vw, 460px); z-index: -1;
  background: url("assets/desk-lamp.jpg") right center / cover no-repeat;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 45%), linear-gradient(180deg, #000 70%, transparent 100%);
  -webkit-mask-composite: source-in;
  mask-image: linear-gradient(90deg, transparent 0%, #000 45%), linear-gradient(180deg, #000 70%, transparent 100%);
  mask-composite: intersect;
  opacity: .85;
}
.crack { position: absolute; color: var(--cream); opacity: .07; pointer-events: none; z-index: -1; }
.crack-hero { left: -20px; top: 40px; width: min(42vw, 420px); }
.hero-inner { display: flex; flex-direction: column; align-items: center; }
.hero-title { margin: 0; line-height: 0; }
.hero-wordmark { width: min(100%, 760px); height: auto; mix-blend-mode: lighten; }
.divider { display: flex; align-items: center; gap: .9rem; margin: .4rem 0 1.4rem; width: min(70%, 380px); }
.divider span { flex: 1; height: 1px; background: linear-gradient(90deg, transparent, var(--gold)); }
.divider span:last-child { background: linear-gradient(90deg, var(--gold), transparent); }
.divider i { width: 9px; height: 9px; background: var(--gold); transform: rotate(45deg); }
.hero-tagline {
  margin: 0; font-variation-settings: "opsz" 28; font-family: var(--serif-display); font-weight: 500;
  font-size: clamp(1.45rem, 3.2vw, 2.25rem); color: var(--gold-bright); letter-spacing: .02em;
}
.hero-sub {
  margin: .35rem 0 2.3rem; font-family: var(--serif-body); font-style: italic;
  font-size: clamp(1.1rem, 2.2vw, 1.4rem); color: var(--cream-dim);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; }

/* ---------- Books ---------- */
.books {
  background:
    radial-gradient(ellipse 70% 60% at 15% 30%, rgba(20, 80, 88, 0.35), transparent 70%),
    linear-gradient(180deg, var(--charcoal), var(--teal-deep));
}
.books .section-title { margin-bottom: 2.8rem; }
.book {
  display: grid; grid-template-columns: minmax(240px, 340px) 1fr; gap: clamp(2rem, 6vw, 4.5rem);
  align-items: center;
}
.case-card { position: relative; filter: drop-shadow(0 26px 40px rgba(0, 0, 0, .55)); }
.case-tab {
  display: inline-block; margin-left: 1.2rem;
  background: #c9ad7a; color: #1b1a16;
  font-family: var(--sans); font-size: .72rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase;
  padding: .45rem 1.1rem .35rem; border-radius: 10px 10px 0 0;
}
.case-body {
  position: relative; overflow: hidden;
  aspect-ratio: 6 / 9;
  background:
    repeating-linear-gradient(0deg, rgba(0,0,0,.035) 0 2px, transparent 2px 5px),
    linear-gradient(160deg, #d9c193 0%, #c4a774 55%, #a98c5b 100%);
  border-radius: 4px 12px 12px 12px;
  color: #2a2419;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 2rem 1.5rem; text-align: center;
}
.case-stamp {
  position: absolute; top: 1.4rem; right: .9rem; transform: rotate(10deg);
  border: 3px solid #8e2b22; color: #8e2b22;
  font-family: var(--sans); font-weight: 600; font-size: .95rem; letter-spacing: .26em; text-transform: uppercase;
  padding: .3rem .9rem; border-radius: 4px; opacity: .85;
}
.case-q { width: 52%; color: #2a2419; opacity: .82; margin-bottom: 1rem; }
.case-label { margin: 0; font-family: var(--serif-display); font-size: 1.65rem; letter-spacing: .04em; }
.case-vol { margin: 0 0 1.2rem; font-family: var(--sans); font-size: .8rem; letter-spacing: .3em; text-transform: uppercase; }
.case-lines { width: 70%; display: grid; gap: .55rem; }
.case-lines span { height: 2px; background: rgba(42, 36, 25, .28); }
.case-lines span:nth-child(2) { width: 82%; }
.case-lines span:nth-child(3) { width: 60%; }

.badge {
  display: inline-block; margin-bottom: 1rem;
  font-family: var(--sans); font-size: .74rem; font-weight: 600; letter-spacing: .24em; text-transform: uppercase;
  color: var(--gold-bright); border: 1px solid var(--gold); padding: .35rem .85rem; border-radius: 999px;
  background: rgba(214, 182, 131, 0.08);
}
.book-title {
  margin: 0 0 1rem; font-variation-settings: "opsz" 28; font-family: var(--serif-display); font-weight: 500;
  font-size: clamp(1.8rem, 3.6vw, 2.6rem); line-height: 1.15;
}
.book-title em { color: var(--gold-bright); }
.book-blurb { margin: 0 0 2rem; color: var(--cream-dim); font-size: 1.12rem; max-width: 58ch; }
.book-actions { display: flex; flex-wrap: wrap; gap: 1rem; }

.more-cases {
  margin-top: clamp(3.5rem, 7vw, 5rem); padding-top: 2.4rem;
  border-top: 1px solid var(--line);
  text-align: center;
}
.more-title {
  margin: 0 0 1.6rem; font-family: var(--sans); font-size: .8rem; font-weight: 600;
  letter-spacing: .3em; text-transform: uppercase; color: var(--gold);
}
.case-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.case-list li {
  border: 1px solid rgba(214, 182, 131, 0.2); border-radius: var(--radius);
  background: rgba(7, 13, 16, 0.35);
  padding: 1.4rem 1rem; display: grid; gap: .25rem;
}
.case-num { font-family: var(--sans); font-size: .72rem; letter-spacing: .24em; text-transform: uppercase; color: var(--cream-dim); }
.case-name { font-variation-settings: "opsz" 20; font-family: var(--serif-display); font-size: 1.4rem; color: var(--cream); }

/* ---------- About ---------- */
.about { background: var(--charcoal); }
.about-inner { display: grid; grid-template-columns: 300px 1fr; gap: clamp(2rem, 6vw, 5rem); align-items: center; }
.about-avatar {
  width: 100%; height: auto; border-radius: 50%;
  box-shadow: 0 0 0 1px var(--line), 0 0 70px rgba(214, 182, 131, 0.14), var(--shadow);
}
.about-text p:not(.eyebrow) { margin: 0 0 1.1rem; font-size: 1.15rem; color: var(--cream-dim); max-width: 60ch; }
.about-text em { color: var(--cream); }
.about-text p.about-signoff { color: var(--gold-bright); font-style: italic; font-size: 1.25rem; }

/* ---------- Signup ---------- */
.signup {
  background:
    radial-gradient(ellipse 60% 70% at 50% 0%, rgba(232, 204, 154, 0.12), transparent 65%),
    linear-gradient(180deg, var(--teal-deep), var(--teal));
}
.signup-card {
  max-width: 820px; margin-inline: auto; text-align: center;
  background: rgba(7, 13, 16, 0.55);
  border: 1px solid var(--line); border-radius: 22px;
  padding: clamp(2.2rem, 6vw, 3.6rem) clamp(1.3rem, 5vw, 3.6rem);
  box-shadow: var(--shadow);
}
.signup-glass { width: 46px; color: var(--gold); margin: 0 auto 1rem; }
.signup-lead { margin: -0.4rem 0 2rem; color: var(--cream-dim); font-size: 1.15rem; }
.signup-form {
  display: grid; grid-template-columns: 1fr 1.4fr auto; gap: .9rem; align-items: end; text-align: left;
}
.field label {
  display: block; margin-bottom: .4rem; white-space: nowrap;
  font-family: var(--sans); font-size: .78rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
  color: var(--cream-dim);
}
.optional { text-transform: none; letter-spacing: 0; font-weight: 400; opacity: .8; }
.field input {
  width: 100%; padding: .95rem 1.1rem; border-radius: 999px;
  border: 1px solid rgba(217, 207, 189, 0.35);
  background: rgba(243, 234, 216, 0.06); color: var(--cream);
  font-family: var(--sans); font-size: 1rem;
}
.field input::placeholder { color: rgba(217, 207, 189, 0.6); }
.field input:focus { border-color: var(--gold); outline: none; box-shadow: 0 0 0 3px rgba(214, 182, 131, 0.25); }
.field input[aria-invalid="true"] { border-color: #f0a59a; }
.form-error { grid-column: 1 / -1; margin: 0; min-height: 1.2em; color: #f6b5aa; font-family: var(--sans); font-size: .9rem; }
.form-error:empty { display: none; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.signup-thanks { padding: 1rem 0; }
.signup-thanks:focus { outline: none; }
.thanks-title { margin: 0 0 .4rem; font-family: var(--serif-display); font-size: 1.8rem; color: var(--gold-bright); }
.signup-thanks p:last-child { margin: 0; color: var(--cream-dim); }
.fine-print { margin: 1.4rem 0 0; font-family: var(--sans); font-size: .85rem; color: var(--cream-dim); opacity: .85; }

/* ---------- Contact ---------- */
.contact { background: linear-gradient(180deg, var(--charcoal), var(--ink)); text-align: center; }
.contact-inner > p:not(.eyebrow) { color: var(--cream-dim); margin: 0 0 2rem; }
.contact-links { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; }
.contact-link {
  display: inline-flex; align-items: center; gap: .6rem;
  padding: .9rem 1.4rem; border-radius: 999px; border: 1px solid var(--line);
  color: var(--cream); text-decoration: none; font-family: var(--sans); font-size: .98rem;
  transition: border-color .2s, color .2s, background-color .2s;
}
.contact-link svg { color: var(--gold); }
.contact-link:hover { border-color: var(--gold); color: var(--gold-bright); background: rgba(214, 182, 131, 0.06); }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); border-top: 1px solid rgba(214, 182, 131, 0.14); padding: 2.6rem 0; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem 2rem; }
.footer-brand { margin: 0; font-family: var(--serif-display); font-size: 1.3rem; color: var(--gold-bright); }
.footer-links { display: flex; flex-wrap: wrap; gap: 1.4rem; list-style: none; margin: 0; padding: 0; }
.footer-links a { color: var(--cream-dim); text-decoration: none; font-family: var(--sans); font-size: .85rem; }
.footer-links a:hover { color: var(--gold-bright); }
.copyright { margin: 0; width: 100%; font-family: var(--sans); font-size: .82rem; color: var(--cream-dim); opacity: .8; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .signup-form { grid-template-columns: 1fr 1fr; }
  .signup-form .btn { grid-column: 1 / -1; }
  .hero-lamp { width: 46vw; opacity: .5; }
}
@media (max-width: 760px) {
  .nav-links li:not(:last-child) { display: none; }
  .nav-links .nav-cta { padding: .45rem .8rem; font-size: .72rem; letter-spacing: .1em; }
  .book { grid-template-columns: 1fr; text-align: center; }
  .case-card { width: min(78%, 300px); margin-inline: auto; }
  .book-blurb { margin-inline: auto; }
  .book-actions { justify-content: center; }
  .case-list { grid-template-columns: 1fr; }
  .about-inner { grid-template-columns: 1fr; text-align: center; }
  .about-avatar { width: min(62%, 240px); margin-inline: auto; }
  .about-text p:not(.eyebrow) { margin-inline: auto; }
  .signup-form { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }
}
@media (max-width: 520px) {
  .hero { min-height: auto; padding: 4rem 0 4.5rem; }
  .hero-lamp { width: 70vw; opacity: .28; }
  .hero-actions .btn { width: 100%; }
  .book-actions .btn { width: 100%; }
  .nav-brand span { font-size: 1.05rem; }
}