/* ============================================================
   Mark Andreas — Concept A: The Author / Editorial Authority
   Palette: warm paper, deep ink, oxblood/terracotta accent.
   Type: Fraunces (display serif), Spectral (reading serif),
         Inter (letterspaced labels).
   ============================================================ */

:root {
  --paper: #f5efe3;
  --paper-deep: #efe6d4;
  --ink: #1b1916;
  --ink-soft: #4a443c;
  --ink-faint: #847b6c;
  --accent: #9c3b2e;
  --accent-deep: #7d2c21;
  --rule: rgba(27, 25, 22, 0.14);
  --rule-soft: rgba(27, 25, 22, 0.08);

  --ff-display: "Fraunces", Georgia, serif;
  --ff-body: "Spectral", Georgia, serif;
  --ff-label: "Inter", system-ui, sans-serif;

  --maxw: 1200px;
  --gutter: clamp(1.25rem, 5vw, 5rem);
  --section-y: clamp(4.5rem, 9vw, 9rem);
}

/* ---------- 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;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--ff-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3 { overflow-wrap: anywhere; }
a { color: inherit; }

.vh {
  position: absolute !important; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 1000;
  background: var(--ink); color: var(--paper);
  padding: 0.6rem 1rem; font-family: var(--ff-label); font-size: 0.85rem;
}
.skip-link:focus { left: 0.5rem; top: 0.5rem; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------- shared typography ---------- */
.eyebrow {
  font-family: var(--ff-label);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1rem;
}
.eyebrow--center { text-align: center; }

.section-title {
  font-family: var(--ff-display);
  font-weight: 400;
  font-size: clamp(1.9rem, 4.2vw, 3rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0;
  font-optical-sizing: auto;
}

.section-head {
  display: flex;
  align-items: baseline;
  gap: clamp(1rem, 3vw, 2.5rem);
  margin-bottom: clamp(2rem, 4vw, 3.25rem);
  border-top: 1px solid var(--rule);
  padding-top: 1.5rem;
}
.sec-num {
  font-family: var(--ff-display);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 300;
  color: var(--accent);
  line-height: 1;
  flex: none;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--ff-label);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;
  padding: 0.85rem 1.5rem;
  border: 1px solid transparent;
  border-radius: 2px;
  transition: background-color .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
  cursor: pointer;
  line-height: 1.2;
}
.btn--ink { background: var(--ink); color: var(--paper); }
.btn--ink:hover { background: var(--accent-deep); }
.btn--accent { background: var(--accent); color: var(--paper); }
.btn--accent:hover { background: var(--accent-deep); }
.btn--ghost {
  background: transparent; color: var(--ink);
  border-color: var(--rule);
}
.btn--ghost:hover { border-color: var(--ink); }
.btn--full { width: 100%; }

/* ============ NAV ============ */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(245, 239, 227, 0.9);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--rule-soft);
}
.nav__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0.85rem var(--gutter);
  display: flex; align-items: center; gap: 1.5rem;
}
.wordmark { text-decoration: none; display: flex; flex-direction: column; line-height: 1.05; margin-right: auto; }
.wordmark__name {
  font-family: var(--ff-display);
  font-size: 1.3rem; font-weight: 500; letter-spacing: -0.01em;
}
.wordmark__role {
  font-family: var(--ff-label);
  font-size: 0.6rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-faint); margin-top: 0.25rem;
}
.nav__links { display: flex; gap: 1.6rem; }
.nav__links a {
  font-family: var(--ff-label);
  font-size: 0.82rem; text-decoration: none; color: var(--ink-soft);
  letter-spacing: 0.02em;
  position: relative; padding: 0.25rem 0;
}
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
  background: var(--accent); transition: width .25s ease;
}
.nav__links a:hover { color: var(--ink); }
.nav__links a:hover::after { width: 100%; }
.nav__cta { flex: none; }

.nav__toggle {
  display: none; flex-direction: column; gap: 4px;
  background: none; border: 0; cursor: pointer; padding: 8px;
}
.nav__toggle span { width: 22px; height: 2px; background: var(--ink); display: block; }

.nav__mobile {
  display: flex; flex-direction: column; gap: 0.25rem;
  padding: 0.5rem var(--gutter) 1.25rem;
  border-top: 1px solid var(--rule-soft);
}
.nav__mobile a {
  font-family: var(--ff-label); font-size: 0.95rem; text-decoration: none;
  color: var(--ink-soft); padding: 0.6rem 0;
}
.nav__mobile .btn { margin-top: 0.5rem; }

/* ============ HERO ============ */
.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 5rem) var(--gutter) var(--section-y);
}
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
.hero__title {
  font-family: var(--ff-display);
  font-optical-sizing: auto;
  font-weight: 400;
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0 0 1.5rem;
}
.hero__title em {
  font-style: italic;
  color: var(--accent);
  font-weight: 400;
}
.hero__lede {
  font-size: clamp(1.05rem, 1.6vw, 1.22rem);
  color: var(--ink-soft);
  max-width: 34ch;
  margin: 0 0 2rem;
}
.hero__cta { display: flex; flex-wrap: wrap; gap: 0.85rem; }

.hero__figure { margin: 0; position: relative; }
.hero__figure img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 2px;
  filter: sepia(0.12) saturate(0.92) contrast(1.02);
  box-shadow: 0 24px 60px -28px rgba(27, 25, 22, 0.55);
}
.hero__figure figcaption {
  font-family: var(--ff-label);
  font-size: 0.66rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-faint); margin-top: 0.75rem; text-align: right;
}

.hero__facts {
  list-style: none; margin: clamp(2.5rem, 5vw, 4rem) 0 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: 2px;
  overflow: hidden;
}
.hero__facts li {
  background: var(--paper);
  padding: 1.4rem 1.25rem;
  display: flex; flex-direction: column; gap: 0.3rem;
}
.hero__facts .num {
  font-family: var(--ff-display);
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-weight: 400; line-height: 1; color: var(--accent);
}
.hero__facts .lbl {
  font-family: var(--ff-label);
  font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-faint);
}

/* ============ OPENING STATEMENT ============ */
.statement {
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: var(--section-y) var(--gutter);
}
.statement > * { max-width: 46rem; margin-left: auto; margin-right: auto; }
.statement__body {
  font-family: var(--ff-display);
  font-optical-sizing: auto;
  font-weight: 300;
  font-size: clamp(1.35rem, 2.8vw, 1.95rem);
  line-height: 1.45;
  letter-spacing: -0.005em;
  margin: 0;
}
.dropcap {
  float: left;
  font-family: var(--ff-display);
  font-weight: 500;
  font-size: 4.6em;
  line-height: 0.74;
  padding: 0.08em 0.12em 0 0;
  margin: 0.04em 0.04em 0 0;
  color: var(--accent);
}

/* ============ METHODS ============ */
.methods, .about, .books, .work {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: var(--section-y) var(--gutter);
}
.method-list { list-style: none; margin: 0; padding: 0; }
.method {
  display: grid;
  grid-template-columns: minmax(0, 3rem) minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 2.5rem);
  padding: clamp(1.75rem, 3.5vw, 2.75rem) 0;
  border-top: 1px solid var(--rule-soft);
}
.method:first-child { border-top: 0; }
.method__num {
  font-family: var(--ff-display);
  font-style: italic;
  font-size: 1.5rem;
  color: var(--accent);
  line-height: 1.4;
}
.method__title {
  font-family: var(--ff-display);
  font-weight: 500;
  font-size: clamp(1.35rem, 2.6vw, 1.85rem);
  margin: 0 0 0.25rem;
  letter-spacing: -0.01em;
}
.method__dev {
  font-family: var(--ff-label);
  font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-faint); margin: 0 0 1rem;
}
.method__desc { margin: 0; max-width: 56ch; color: var(--ink-soft); }
.method__love {
  font-family: var(--ff-body);
  font-style: italic;
  color: var(--accent);
  margin: 0.85rem 0 0;
  font-size: 0.95rem;
}

/* ============ ABOUT ============ */
.about__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}
.about__figure { margin: 0; position: sticky; top: 6rem; }
.about__figure img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 2px;
  filter: sepia(0.12) saturate(0.92) contrast(1.02);
}
.about__text p { color: var(--ink-soft); margin: 0 0 1.25rem; max-width: 58ch; }
.marginalia {
  margin-top: 2rem;
  border-left: 2px solid var(--accent);
  padding: 0.25rem 0 0.25rem 1.25rem;
}
.marginalia p {
  font-family: var(--ff-label);
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--ink-faint);
  margin: 0;
}
.marginalia strong {
  color: var(--ink); letter-spacing: 0.1em; text-transform: uppercase;
  font-size: 0.7rem; font-weight: 600;
}

/* ============ RESEARCH BAND ============ */
.research {
  background: var(--ink);
  color: var(--paper);
  padding: var(--section-y) var(--gutter);
}
.research > * { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.section-head--invert { border-top-color: rgba(245, 239, 227, 0.2); }
.research .eyebrow { color: #d98b78; }
.research .section-title { color: var(--paper); }
.research .sec-num { color: #d98b78; }
.research__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1.5rem, 4vw, 3rem);
}
.stat { border-top: 1px solid rgba(245, 239, 227, 0.18); padding-top: 1.5rem; }
.stat__num {
  font-family: var(--ff-display);
  font-weight: 300;
  font-size: clamp(3rem, 7vw, 5rem);
  line-height: 1;
  color: var(--paper);
  display: block;
  margin-bottom: 1rem;
}
.stat__lbl { margin: 0; color: rgba(245, 239, 227, 0.78); max-width: 32ch; }

/* ============ BOOKS ============ */
.book-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.5rem, 3.5vw, 2.5rem);
}
.book-card {
  display: grid;
  grid-template-columns: minmax(0, 0.5fr) minmax(0, 1fr);
  gap: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid var(--rule);
  border-radius: 2px;
  background: var(--paper-deep);
  overflow: hidden;
}
.book-card__spine {
  background: var(--accent);
  color: var(--paper);
  padding: 1.75rem 1.25rem;
  display: flex; flex-direction: column; justify-content: space-between;
  min-height: 240px;
  position: relative;
}
.book-card__spine::after {
  content: ""; position: absolute; top: 0; right: 0; bottom: 0; width: 6px;
  background: rgba(0,0,0,0.18);
}
.book-card__spine--alt { background: var(--ink); }
.book-card__by {
  font-family: var(--ff-label);
  font-size: 0.6rem; letter-spacing: 0.16em; text-transform: uppercase;
  opacity: 0.8;
}
.book-card__name {
  font-family: var(--ff-display);
  font-style: italic;
  font-size: 1.3rem;
  line-height: 1.15;
}
.book-card__body { padding: 1.75rem 1.5rem 1.75rem 0; }
.book-card__title {
  font-family: var(--ff-display);
  font-weight: 500;
  font-size: clamp(1.2rem, 2.4vw, 1.6rem);
  margin: 0 0 0.85rem;
  letter-spacing: -0.01em;
}
.book-card__desc { margin: 0 0 1rem; color: var(--ink-soft); }
.book-card__endorse {
  font-style: italic; color: var(--accent); margin: 0; font-size: 0.95rem;
  border-top: 1px solid var(--rule-soft); padding-top: 0.85rem;
}

/* ============ WORK WITH MARK ============ */
.work-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: 2px;
  overflow: hidden;
}
.work-item {
  background: var(--paper);
  padding: clamp(1.75rem, 3.5vw, 2.75rem);
  display: flex; flex-direction: column; gap: 0.6rem;
}
.work-item__num {
  font-family: var(--ff-display);
  font-size: 0.95rem; color: var(--accent); letter-spacing: 0.05em;
}
.work-item__title {
  font-family: var(--ff-display);
  font-weight: 500;
  font-size: clamp(1.2rem, 2.4vw, 1.55rem);
  margin: 0;
  letter-spacing: -0.01em;
}
.work-item__desc { margin: 0; color: var(--ink-soft); flex: 1; }
.work-item__link {
  font-family: var(--ff-label);
  font-size: 0.8rem; letter-spacing: 0.03em;
  color: var(--accent); text-decoration: none; margin-top: 0.75rem;
  font-weight: 500;
}
.work-item__link:hover { color: var(--accent-deep); text-decoration: underline; }

/* ============ TESTIMONIALS ============ */
.testimonials {
  background: var(--paper-deep);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: var(--section-y) var(--gutter);
}
.testimonials > .eyebrow, .testimonials > .vh { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.quote {
  max-width: 46rem;
  margin: 0 auto;
  text-align: center;
}
.quote p {
  font-family: var(--ff-display);
  font-optical-sizing: auto;
  font-weight: 300;
  font-style: italic;
  font-size: clamp(1.4rem, 3vw, 2rem);
  line-height: 1.4;
  margin: 0 0 1.25rem;
}
.quote cite {
  font-family: var(--ff-label);
  font-style: normal;
  font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-faint);
}
.quote-row {
  max-width: var(--maxw); margin: clamp(2.5rem, 5vw, 4rem) auto 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.5rem, 4vw, 3rem);
}
.quote--sm { text-align: left; max-width: none; margin: 0; }
.quote--sm { border-top: 1px solid var(--rule); padding-top: 1.5rem; }
.quote--sm p { font-size: clamp(1.05rem, 1.8vw, 1.25rem); }

/* ============ CONTACT ============ */
.contact {
  max-width: var(--maxw); margin: 0 auto;
  padding: var(--section-y) var(--gutter);
}
.contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}
.contact__intro p { color: var(--ink-soft); max-width: 42ch; }
.contact__details { list-style: none; margin: 1.75rem 0 0; padding: 0; }
.contact__details li {
  padding: 0.75rem 0;
  border-top: 1px solid var(--rule-soft);
  font-size: 0.98rem;
}
.contact__details .lbl {
  display: inline-block; min-width: 6rem;
  font-family: var(--ff-label);
  font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-faint);
}
.contact__details a { color: var(--accent); text-decoration: none; }
.contact__details a:hover { text-decoration: underline; }

.contact__form {
  background: var(--paper-deep);
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: clamp(1.5rem, 3.5vw, 2.5rem);
}
.field { margin-bottom: 1.1rem; }
.field label {
  display: block;
  font-family: var(--ff-label);
  font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-soft); margin-bottom: 0.45rem;
}
.field input, .field select, .field textarea {
  width: 100%;
  font-family: var(--ff-body);
  font-size: 1rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 0.7rem 0.85rem;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent);
}
.field textarea { resize: vertical; }
.contact__note {
  font-size: 0.85rem; color: var(--ink-faint); margin: 1rem 0 0; text-align: center;
}

/* ============ FOOTER ============ */
.footer {
  background: var(--ink);
  color: var(--paper);
  padding: clamp(3rem, 6vw, 4.5rem) var(--gutter) 2rem;
}
.footer__inner {
  max-width: var(--maxw); margin: 0 auto;
  display: flex; flex-wrap: wrap; gap: 2rem; justify-content: space-between;
  align-items: start;
  border-bottom: 1px solid rgba(245, 239, 227, 0.18);
  padding-bottom: 2rem;
}
.footer__brand .wordmark__name { color: var(--paper); }
.footer__brand p { color: rgba(245, 239, 227, 0.7); max-width: 32ch; margin: 0.5rem 0 0; font-size: 0.95rem; }
.footer__nav { display: flex; flex-wrap: wrap; gap: 1.25rem; }
.footer__nav a {
  font-family: var(--ff-label); font-size: 0.82rem; text-decoration: none;
  color: rgba(245, 239, 227, 0.78);
}
.footer__nav a:hover { color: var(--paper); }
.footer__legal {
  max-width: var(--maxw); margin: 1.5rem auto 0;
  font-family: var(--ff-label); font-size: 0.72rem; letter-spacing: 0.06em;
  color: rgba(245, 239, 227, 0.5);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 880px) {
  .nav__links, .nav__cta { display: none; }
  .nav__toggle { display: flex; }

  .hero__grid { grid-template-columns: minmax(0, 1fr); }
  .hero__figure { order: -1; }
  .hero__facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .about__grid { grid-template-columns: minmax(0, 1fr); }
  .about__figure { position: static; }

  .research__stats { grid-template-columns: minmax(0, 1fr); }

  .book-grid { grid-template-columns: minmax(0, 1fr); }
  .work-grid { grid-template-columns: minmax(0, 1fr); }
  .quote-row { grid-template-columns: minmax(0, 1fr); }
  .contact__grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 480px) {
  .hero__facts { grid-template-columns: minmax(0, 1fr); }
  .book-card { grid-template-columns: minmax(0, 1fr); }
  .book-card__spine { min-height: 160px; }
  .book-card__spine::after { display: none; }
  .book-card__body { padding: 1.5rem 1.25rem; }
}