/* ================================================================
   J.K. REEVE — jkreeve.com
   Sibling design to ghostsignalbook.com
   Mobile-first, WCAG 2.1 AA, no framework dependencies
   ================================================================ */

*, *::before, *::after { box-sizing: border-box; }

:root {
  --bg-deep: #050816;
  --bg-mid: #0a0e27;
  --bg-panel: #111634;
  --bg-elevated: #1a2050;
  --cyan: #5eddff;
  --cyan-bright: #8ef0ff;
  --cyan-dim: #3b9dbf;
  --purple: #a06bff;
  --purple-dim: #6b3fb8;
  --ink: #e8ecff;
  --ink-soft: #c4cadf;
  --ink-mute: #8a92b3;
  --rule: rgba(94, 221, 255, 0.18);
  --rule-soft: rgba(94, 221, 255, 0.08);

  --font-display: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", sans-serif;
  --font-body: Georgia, "Times New Roman", serif;
  --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;

  --maxw: 1100px;
  --gutter: clamp(1rem, 4vw, 2rem);
  --section-pad: clamp(3rem, 8vw, 6rem);
  --radius: 6px;
  --radius-lg: 12px;
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg-deep);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--cyan-bright); }

.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--cyan);
  color: var(--bg-deep);
  padding: 0.75rem 1.25rem;
  z-index: 1000;
  font-family: var(--font-ui);
  font-weight: 700;
  text-decoration: none;
}
.skip-link:focus { top: 0; }

:focus-visible {
  outline: 3px solid var(--cyan-bright);
  outline-offset: 3px;
  border-radius: 2px;
}

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* ================================================================
   HERO — Author-led, banner-background + fade
   ================================================================ */
.hero {
  position: relative;
  min-height: 65vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: clamp(4rem, 12vw, 8rem) var(--gutter) clamp(3rem, 8vw, 5rem);
  background-color: var(--bg-deep);
  background-image:
    linear-gradient(180deg, rgba(5,8,22,0.55) 0%, rgba(5,8,22,0.85) 70%, rgba(5,8,22,1) 100%),
    url("newsletterhead.png");
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center top, transparent 0%, rgba(5,8,22,0.5) 100%);
  pointer-events: none;
}

.hero-content { position: relative; z-index: 2; max-width: 800px; }

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 9vw, 5rem);
  font-weight: 900;
  letter-spacing: 0.08em;
  margin: 0 0 0.5rem;
  color: var(--cyan-bright);
  text-shadow: 0 0 24px rgba(94, 221, 255, 0.5), 0 0 8px rgba(94, 221, 255, 0.7);
  line-height: 1;
}

.hero-eyebrow {
  font-family: var(--font-ui);
  font-size: clamp(0.8rem, 2.4vw, 1rem);
  font-weight: 600;
  letter-spacing: 0.3em;
  color: var(--ink-soft);
  text-transform: uppercase;
  margin: 0 0 1.5rem;
}

.hero-sub {
  font-family: var(--font-ui);
  font-size: clamp(1.1rem, 3vw, 1.4rem);
  font-weight: 400;
  color: var(--ink);
  margin: 0.75rem 0 0;
  letter-spacing: 0.05em;
}
.hero-sub em {
  color: var(--cyan-bright);
  font-style: italic;
  font-weight: 600;
}

.tagline {
  font-family: var(--font-body);
  font-style: italic;
  font-size: clamp(1.05rem, 3vw, 1.35rem);
  color: var(--ink-soft);
  margin: 1.75rem auto 0;
  max-width: 32ch;
  line-height: 1.4;
}

.hero-cta {
  margin-top: 2.5rem;
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ================================================================
   BUTTONS
   ================================================================ */
.btn {
  display: inline-block;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  text-decoration: none;
  padding: 0.95rem 1.75rem;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  text-align: center;
  min-width: 200px;
  line-height: 1.2;
}
.btn-primary {
  background: var(--cyan);
  color: var(--bg-deep);
  border-color: var(--cyan);
}
.btn-primary:hover, .btn-primary:focus-visible {
  background: var(--cyan-bright);
  border-color: var(--cyan-bright);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(94, 221, 255, 0.3);
}
.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
.btn-secondary {
  background: transparent;
  color: var(--cyan-bright);
  border-color: var(--cyan-dim);
}
.btn-secondary:hover, .btn-secondary:focus-visible {
  border-color: var(--cyan);
  background: rgba(94, 221, 255, 0.08);
}

/* ================================================================
   SECTIONS
   ================================================================ */
section { padding: var(--section-pad) 0; position: relative; }

.section-eyebrow {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.35em;
  color: var(--cyan);
  text-transform: uppercase;
  margin: 0 0 0.75rem;
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--ink);
  margin: 0 0 1.5rem;
  line-height: 1.2;
}

h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--cyan-bright);
  margin: 0 0 0.75rem;
  line-height: 1.3;
}

p { margin: 0 0 1.25rem; color: var(--ink-soft); }
p:last-child { margin-bottom: 0; }

em { color: var(--cyan-bright); font-style: italic; font-weight: normal; }

.inline-link {
  color: var(--cyan-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-dim);
  padding-bottom: 1px;
  transition: border-color 0.2s ease;
}
.inline-link:hover, .inline-link:focus-visible {
  border-bottom-color: var(--cyan-bright);
}

/* ================================================================
   THE BOOK SECTION
   ================================================================ */
.book { background: linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-mid) 100%); }

.book-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 6vw, 4rem);
  align-items: center;
}

.book-cover { display: flex; justify-content: center; }
.book-cover a { display: block; transition: transform 0.3s ease; }
.book-cover a:hover { transform: scale(1.02); }

.book-cover img {
  max-width: 360px;
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.6),
    0 0 60px rgba(94, 221, 255, 0.15);
}

.book-pitch p { font-size: 1.05rem; }

.book-cta {
  margin-top: 2rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.formats {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--rule);
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  align-items: center;
}
.formats-label {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  color: var(--ink-mute);
  text-transform: uppercase;
}
.formats-list {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
}
.formats-list li {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: var(--ink);
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: rgba(94, 221, 255, 0.04);
}

@media (min-width: 768px) {
  .book-grid { grid-template-columns: minmax(280px, 1fr) 1.4fr; }
}

/* ================================================================
   SERIES
   ================================================================ */
.series { background: linear-gradient(180deg, var(--bg-mid) 0%, var(--bg-panel) 100%); }
.series-intro { max-width: 640px; margin: 0 auto; }

.series-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}
.series-card {
  background: rgba(17, 22, 52, 0.6);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.series-card:hover {
  border-color: var(--cyan-dim);
  transform: translateY(-2px);
}
.series-card-status {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin: 0 0 0.5rem;
}
.status-live { color: var(--cyan-bright); }
.status-dev { color: var(--purple); }
.status-planned { color: var(--ink-mute); }
.series-card p:last-child { margin-bottom: 0; font-size: 0.95rem; }

@media (min-width: 720px) {
  .series-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ================================================================
   AUTHOR — Portrait + bio grid
   ================================================================ */
.author { background: var(--bg-mid); }

.author-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 6vw, 3rem);
  align-items: center;
  margin-top: 1.5rem;
}

.author-portrait {
  display: flex;
  justify-content: center;
}
.author-portrait img {
  width: 100%;
  max-width: 340px;
  border-radius: var(--radius-lg);
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.5),
    0 0 40px rgba(94, 221, 255, 0.12);
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.author-body p { font-size: 1.05rem; }

@media (min-width: 768px) {
  .author-grid {
    grid-template-columns: minmax(260px, 340px) 1fr;
    align-items: start;
  }
}

/* ================================================================
   SERVICES — Big section, multi-block
   ================================================================ */
.services {
  background: linear-gradient(180deg, var(--bg-mid) 0%, var(--bg-deep) 100%);
}

.services-lede {
  font-size: 1.15rem;
  color: var(--ink);
  max-width: 720px;
  margin: 0 0 2.5rem;
  line-height: 1.6;
}
.services-lede strong {
  color: var(--cyan-bright);
  font-weight: 700;
}

.services-block {
  margin-bottom: 2.5rem;
  padding: 1.75rem;
  background: rgba(17, 22, 52, 0.5);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
}
.services-block:last-of-type { margin-bottom: 2rem; }

.services-block h3 {
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  margin: 0 0 0.85rem;
}

.services-list {
  margin: 0.75rem 0 0;
  padding-left: 1.25rem;
  list-style: none;
}
.services-list li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.85rem;
  font-size: 0.98rem;
  color: var(--ink-soft);
  line-height: 1.6;
}
.services-list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--cyan-dim);
  font-size: 0.85rem;
  top: 0.3rem;
}
.services-list li strong {
  color: var(--cyan-bright);
  font-weight: 700;
}

.services-pricing {
  margin-top: 3rem;
  padding: 2rem;
  background: rgba(94, 221, 255, 0.05);
  border: 1px solid var(--cyan-dim);
  border-radius: var(--radius-lg);
  text-align: center;
}
.services-pricing h3 {
  margin-top: 0;
  font-size: 1.3rem;
}
.services-pricing p {
  max-width: 520px;
  margin: 0 auto 1.5rem;
}

/* ================================================================
   NEWSLETTER
   ================================================================ */
.newsletter {
  background: linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-panel) 100%);
  text-align: center;
}
.newsletter-intro { max-width: 580px; margin: 0 auto 2.5rem; }
.ml-embedded { max-width: 480px; margin: 0 auto; }

/* ================================================================
   CONTACT
   ================================================================ */
.contact { background: var(--bg-panel); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: start;
}
@media (min-width: 720px) {
  .contact-grid { grid-template-columns: 1fr 1fr; gap: 4rem; }
}
.contact-intro p { font-size: 1.05rem; }
.contact-email {
  display: inline-block;
  margin-top: 0.5rem;
  font-family: var(--font-ui);
  font-weight: 600;
  color: var(--cyan-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-dim);
  padding-bottom: 2px;
  transition: border-color 0.2s ease;
}
.contact-email:hover, .contact-email:focus-visible {
  border-bottom-color: var(--cyan-bright);
}

.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.contact-form .field { display: flex; flex-direction: column; }
.contact-form label {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--ink-soft);
  margin-bottom: 0.4rem;
}
.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  background: var(--bg-deep);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 1rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  border-color: var(--cyan);
  outline: none;
  box-shadow: 0 0 0 3px rgba(94, 221, 255, 0.18);
}
.contact-form textarea {
  min-height: 140px;
  resize: vertical;
  font-family: var(--font-body);
  line-height: 1.5;
}
.contact-form button { margin-top: 0.5rem; width: 100%; }
.honeypot { position: absolute; left: -9999px; visibility: hidden; }
.form-status {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-family: var(--font-ui);
  font-size: 0.9rem;
  display: none;
}
.form-status.show { display: block; }
.form-status.success { background: rgba(94, 221, 255, 0.1); border: 1px solid var(--cyan-dim); color: var(--cyan-bright); }
.form-status.error   { background: rgba(255, 100, 100, 0.1); border: 1px solid #c66; color: #ffb0b0; }

/* ================================================================
   FOOTER
   ================================================================ */
footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--rule-soft);
  padding: 3rem 0 2rem;
  text-align: center;
}
.footer-links {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
}
.footer-links a {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: var(--ink-soft);
  text-decoration: none;
  transition: color 0.2s ease;
}
.footer-links a:hover, .footer-links a:focus-visible { color: var(--cyan-bright); }
.footer-copy {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--ink-mute);
  margin: 0;
}

/* ================================================================
   PRIVACY POLICY PAGE
   ================================================================ */
.policy-page {
  max-width: 800px;
  margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 5rem) var(--gutter);
}
.policy-page h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 5vw, 2.5rem);
  color: var(--cyan-bright);
  margin: 0 0 0.5rem;
}
.policy-page h2 {
  font-size: 1.3rem;
  color: var(--cyan-bright);
  margin: 2.5rem 0 1rem;
  letter-spacing: 0;
}
.policy-page .last-updated {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: var(--ink-mute);
  margin: 0 0 2rem;
}
.policy-page p, .policy-page li { font-size: 1rem; line-height: 1.7; color: var(--ink-soft); }
.policy-page ul { padding-left: 1.5rem; margin: 0 0 1.25rem; }
.policy-page li { margin-bottom: 0.25rem; }
.policy-page a { color: var(--cyan-bright); }
.policy-back {
  display: inline-block;
  margin-bottom: 2rem;
  font-family: var(--font-ui);
  color: var(--cyan-bright);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
}

/* ================================================================
   PREFERS REDUCED MOTION
   ================================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}