/* ==========================================================================
   Sullen Ground — sullenground.com
   Design system + page styles. No build step; plain CSS.
   ========================================================================== */

/* --- Tokens --------------------------------------------------------------- */
:root {
  /* Surfaces: cold ash over near-black */
  --bg:            #0b0d0f;
  --bg-raised:     #121518;
  --bg-sunk:       #07090a;
  --line:          #222a30;
  --line-soft:     #191f24;

  /* Ink */
  --ink:           #e9e6e1;
  --ink-dim:       #a4acb3;
  --ink-faint:     #6e767d;

  /* Weathered brass — picked up from the sepia in the covers */
  --accent:        #d19a5c;
  --accent-bright: #e8b478;
  --accent-deep:   #8a5c2e;

  --focus:         #7fb2e5;

  /* Type */
  --font-display: "Fraunces", "Iowan Old Style", Georgia, "Times New Roman", serif;
  --font-body:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --step--1: clamp(0.83rem, 0.80rem + 0.15vw, 0.90rem);
  --step-0:  clamp(1.00rem, 0.96rem + 0.20vw, 1.10rem);
  --step-1:  clamp(1.20rem, 1.12rem + 0.40vw, 1.42rem);
  --step-2:  clamp(1.50rem, 1.34rem + 0.80vw, 2.05rem);
  --step-3:  clamp(1.90rem, 1.60rem + 1.50vw, 2.95rem);
  --step-4:  clamp(2.40rem, 1.85rem + 2.75vw, 4.30rem);
  --step-5:  clamp(3.00rem, 2.05rem + 4.75vw, 6.20rem);

  /* Layout */
  --container: 1120px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --prose: 66ch;
  --radius: 3px;

  --shadow-cover: 0 2px 4px rgba(0,0,0,.4), 0 12px 28px rgba(0,0,0,.55),
                  0 30px 60px rgba(0,0,0,.35);
}

/* --- 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; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, picture, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; }
button, input, textarea, select { font: inherit; color: inherit; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin: 0;
  font-variation-settings: "opsz" 144, "SOFT" 0, "WONK" 0;
}

p { margin: 0 0 1.15em; }
p:last-child { margin-bottom: 0; }

::selection { background: var(--accent-deep); color: #fff; }

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

/* --- Helpers -------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow { max-width: 840px; }

.prose { max-width: var(--prose); }
.prose p + p { margin-top: 0; }

.skip-link {
  position: absolute;
  left: 50%;
  transform: translate(-50%, -140%);
  z-index: 200;
  background: var(--accent);
  color: #111;
  font-weight: 600;
  padding: .7rem 1.2rem;
  border-radius: 0 0 var(--radius) var(--radius);
  transition: transform .18s ease;
}
.skip-link:focus { transform: translate(-50%, 0); }

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip-path: inset(50%); white-space: nowrap;
}

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1.1rem;
}
.eyebrow--dim { color: var(--ink-faint); }

.rule {
  width: 64px; height: 1px; border: 0;
  background: linear-gradient(90deg, var(--accent), transparent);
  margin: 1.75rem 0;
}

.lede {
  font-size: var(--step-1);
  line-height: 1.6;
  color: var(--ink);
}

/* --- Buttons -------------------------------------------------------------- */
.btn {
  --btn-bg: var(--accent);
  --btn-fg: #14100b;
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .85rem 1.6rem;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid var(--btn-bg);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background .18s ease, border-color .18s ease, color .18s ease,
              transform .18s ease;
}
.btn:hover { --btn-bg: var(--accent-bright); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--ink);
  border-color: var(--line);
}
.btn--ghost:hover {
  --btn-bg: transparent;
  --btn-fg: var(--accent-bright);
  border-color: var(--accent);
}

.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }

.btn .arrow { transition: transform .18s ease; }
.btn:hover .arrow { transform: translateX(3px); }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
  align-items: center;
}

.link-quiet {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(209,154,92,.35);
  padding-bottom: 1px;
  transition: border-color .18s ease, color .18s ease;
}
.link-quiet:hover { color: var(--accent-bright); border-color: var(--accent-bright); }

/* --- Header --------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11,13,15,.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: background .25s ease, border-color .25s ease;
}
.site-header[data-scrolled="true"] {
  background: rgba(9,11,13,.92);
  border-bottom-color: var(--line-soft);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 74px;
}

.wordmark {
  text-decoration: none;
  display: grid;
  gap: 2px;
  line-height: 1;
}
.wordmark__title {
  font-family: var(--font-display);
  font-size: 1.16rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.wordmark__sub {
  font-size: .64rem;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.nav { display: flex; align-items: center; gap: clamp(1rem, 2.4vw, 2.1rem); }
.nav__link {
  position: relative;
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: .13em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-dim);
  padding: .4rem 0;
  transition: color .18s ease;
}
.nav__link:hover { color: var(--ink); }
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .22s ease;
}
.nav__link:hover::after { transform: scaleX(1); }
.nav__link[aria-current="page"] { color: var(--ink); }
.nav__link[aria-current="page"]::after { transform: scaleX(1); }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
}
.nav-toggle__bars, .nav-toggle__bars::before, .nav-toggle__bars::after {
  content: "";
  display: block;
  width: 18px; height: 1.5px;
  background: var(--ink);
  transition: transform .22s ease, opacity .18s ease;
}
.nav-toggle__bars::before { transform: translateY(-6px); }
.nav-toggle__bars::after  { transform: translateY(4.5px); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after  { transform: rotate(-45deg) translateY(0); }

@media (max-width: 780px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    position: fixed;
    inset: 74px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--bg-sunk);
    border-bottom: 1px solid var(--line-soft);
    padding: .5rem var(--gutter) 1.5rem;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity .2s ease, transform .2s ease, visibility .2s;
  }
  .nav[data-open="true"] { opacity: 1; visibility: visible; transform: translateY(0); }
  .nav__link {
    padding: 1rem 0;
    border-bottom: 1px solid var(--line-soft);
    font-size: 1rem;
  }
  .nav__link::after { display: none; }
}

/* --- Hero ----------------------------------------------------------------- */
.hero {
  position: relative;
  display: grid;
  align-items: end;
  min-height: min(88vh, 820px);
  padding: clamp(5rem, 14vh, 9rem) 0 clamp(3rem, 8vh, 5rem);
  overflow: hidden;
  isolation: isolate;
}
.hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}
.hero__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 42%;
  filter: grayscale(.35) contrast(1.05);
}
.hero__scrim {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(11,13,15,.86) 0%, rgba(11,13,15,.35) 32%,
                    rgba(11,13,15,.80) 72%, var(--bg) 100%),
    linear-gradient(90deg, rgba(11,13,15,.78) 0%, rgba(11,13,15,.10) 65%);
}

.hero__inner { max-width: 780px; }
.hero__title {
  font-size: var(--step-5);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 1.25rem;
  text-wrap: balance;
}
.hero__tagline {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 400;
  font-style: italic;
  color: var(--ink);
  line-height: 1.3;
  margin: 0 0 1.5rem;
  text-wrap: balance;
}
.hero__meta {
  font-size: var(--step--1);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin: 0 0 2.25rem;
}
.hero__meta strong { color: var(--ink); font-weight: 600; }

/* --- Page header (interior pages) ---------------------------------------- */
.page-head {
  position: relative;
  padding: clamp(4.5rem, 13vh, 8rem) 0 clamp(2.5rem, 6vh, 4rem);
  border-bottom: 1px solid var(--line-soft);
  background:
    radial-gradient(120% 90% at 12% 0%, rgba(209,154,92,.10), transparent 62%),
    var(--bg);
}
.page-head__title {
  font-size: var(--step-4);
  font-weight: 700;
  letter-spacing: -0.025em;
  text-wrap: balance;
}
.page-head__sub {
  margin-top: 1.25rem;
  max-width: var(--prose);
  color: var(--ink-dim);
  font-size: var(--step-1);
  line-height: 1.6;
}

/* --- Sections ------------------------------------------------------------- */
.section { padding: clamp(3.5rem, 10vh, 7rem) 0; }
.section--tight { padding: clamp(2.5rem, 6vh, 4rem) 0; }
.section--raised { background: var(--bg-raised); border-block: 1px solid var(--line-soft); }
.section--sunk { background: var(--bg-sunk); border-block: 1px solid var(--line-soft); }

.section__title {
  font-size: var(--step-3);
  font-weight: 600;
  text-wrap: balance;
}

/* --- Premise -------------------------------------------------------------- */
.premise__pull {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 400;
  line-height: 1.42;
  color: var(--ink);
  max-width: 22ch;
  margin: 0;
  text-wrap: balance;
}
.premise__pull em { color: var(--accent); font-style: normal; }

.premise__grid {
  display: grid;
  gap: clamp(2rem, 5vw, 4.5rem);
  grid-template-columns: 1fr;
}
@media (min-width: 900px) {
  .premise__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); }
  .premise__pull { position: sticky; top: 110px; }
}
.premise__body { color: var(--ink-dim); }
.premise__body p { max-width: var(--prose); }

/* --- Book spotlight ------------------------------------------------------- */
.spotlight {
  display: grid;
  gap: clamp(2.25rem, 6vw, 4.5rem);
  align-items: center;
  grid-template-columns: 1fr;
}
@media (min-width: 860px) {
  .spotlight { grid-template-columns: minmax(240px, 340px) minmax(0, 1fr); }
}

.cover {
  position: relative;
  display: block;
  border-radius: 2px;
  box-shadow: var(--shadow-cover);
  transition: transform .35s cubic-bezier(.2,.7,.3,1);
}
.cover img { border-radius: 2px; width: 100%; }
.cover::after {
  /* spine shading */
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 9%;
  border-radius: 2px 0 0 2px;
  background: linear-gradient(90deg, rgba(0,0,0,.42), rgba(255,255,255,.06) 55%, transparent);
  pointer-events: none;
}
a.cover:hover { transform: translateY(-6px) rotate(-.4deg); }

/* --- Series rail ---------------------------------------------------------- */
.series {
  display: grid;
  gap: clamp(1.5rem, 3.5vw, 2.5rem);
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}
.series__item {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 1rem;
  text-decoration: none;
}
/* The four covers are not all the same aspect ratio; normalise them so the
   titles underneath sit on one line. */
.series__item .cover img {
  aspect-ratio: 2 / 3;
  object-fit: cover;
  object-position: center top;
}
.series__num {
  font-size: var(--step--1);
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.series__name {
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 600;
  line-height: 1.2;
  transition: color .18s ease;
}
.series__item:hover .series__name { color: var(--accent-bright); }

/* --- Book list (Books page) ---------------------------------------------- */
.book {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
  grid-template-columns: 1fr;
  padding: clamp(3rem, 8vh, 5.5rem) 0;
  border-bottom: 1px solid var(--line-soft);
}
.book:last-child { border-bottom: 0; }
@media (min-width: 860px) {
  .book { grid-template-columns: minmax(220px, 300px) minmax(0, 1fr); }
  .book__media { position: sticky; top: 110px; }
}
.book__num {
  font-family: var(--font-display);
  font-size: var(--step--1);
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .85rem;
}
.book__title {
  font-size: var(--step-3);
  font-weight: 700;
  margin-bottom: 1.35rem;
  letter-spacing: -0.02em;
}
.book__body { color: var(--ink-dim); max-width: var(--prose); }
.book__body p:last-of-type { margin-bottom: 1.9rem; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(209,154,92,.35);
  border-radius: 999px;
  padding: .3rem .8rem;
  margin-left: .75rem;
  vertical-align: middle;
}

/* --- About / bio ---------------------------------------------------------- */
.about {
  display: grid;
  gap: clamp(2.25rem, 6vw, 4.5rem);
  align-items: start;
  grid-template-columns: 1fr;
}
@media (min-width: 860px) {
  .about { grid-template-columns: minmax(240px, 360px) minmax(0, 1fr); }
  .about__media { position: sticky; top: 110px; }
}
.portrait {
  border-radius: 2px;
  box-shadow: var(--shadow-cover);
  filter: saturate(.85);
}
.portrait-caption {
  margin-top: 1rem;
  font-size: var(--step--1);
  color: var(--ink-faint);
  letter-spacing: .04em;
}

.dedication {
  margin: clamp(2.5rem, 6vh, 4rem) 0 0;
  padding: clamp(1.75rem, 4vw, 2.75rem);
  border: 1px solid var(--line);
  border-left: 2px solid var(--accent);
  border-radius: var(--radius);
  background: var(--bg-raised);
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-style: italic;
  line-height: 1.6;
  color: var(--ink);
}
.dedication cite {
  display: block;
  margin-top: 1.1rem;
  font-family: var(--font-body);
  font-style: normal;
  font-size: var(--step--1);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* --- News ----------------------------------------------------------------- */
.news-list { display: grid; gap: 1.25rem; }
.news-item {
  display: grid;
  gap: .75rem;
  padding: clamp(1.5rem, 4vw, 2.25rem);
  background: var(--bg-raised);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}
.news-item__date {
  font-size: var(--step--1);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent);
}
.news-item__title { font-size: var(--step-2); font-weight: 600; }
.news-item__body { color: var(--ink-dim); max-width: var(--prose); }

.empty-note {
  padding: clamp(2rem, 5vw, 3rem);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--ink-dim);
  text-align: center;
}

/* --- Forms ---------------------------------------------------------------- */
.form { display: grid; gap: 1.4rem; max-width: 640px; }
.field { display: grid; gap: .5rem; }
.field__label {
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.field__label .req { color: var(--accent); margin-left: .25rem; }

.field input,
.field textarea {
  width: 100%;
  padding: .85rem 1rem;
  background: var(--bg-sunk);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .18s ease, background .18s ease;
}
.field input:hover, .field textarea:hover { border-color: #2f3941; }
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: #0a0c0e;
}
.field textarea { resize: vertical; min-height: 170px; line-height: 1.6; }
.field input::placeholder, .field textarea::placeholder { color: var(--ink-faint); }

.field__error {
  font-size: var(--step--1);
  color: #e8927c;
  min-height: 1px;
}
.field[data-invalid="true"] input,
.field[data-invalid="true"] textarea { border-color: #b4553c; }

/* honeypot — kept out of the layout and off the a11y tree */
.hp {
  position: absolute !important;
  left: -9999px !important;
  width: 1px; height: 1px;
  opacity: 0;
}

.form__status {
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--bg-raised);
  font-size: var(--step--1);
}
.form__status[hidden] { display: none; }
.form__status[data-state="ok"]   { border-color: rgba(126,183,116,.5); color: #a7d69b; }
.form__status[data-state="error"]{ border-color: rgba(180,85,60,.6);  color: #e8927c; }

/* --- Contact layout ------------------------------------------------------- */
.contact {
  display: grid;
  gap: clamp(2.5rem, 6vw, 5rem);
  grid-template-columns: 1fr;
  align-items: start;
}
@media (min-width: 900px) {
  .contact { grid-template-columns: minmax(0, 1.35fr) minmax(0, .8fr); }
}
.contact__aside {
  padding: clamp(1.75rem, 4vw, 2.5rem);
  background: var(--bg-raised);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}
.contact__aside h2 { font-size: var(--step-1); margin-bottom: .9rem; }
.contact__aside p { color: var(--ink-dim); font-size: var(--step--1); }

/* --- Footer --------------------------------------------------------------- */
.site-footer {
  padding: clamp(3rem, 7vh, 4.5rem) 0 2.5rem;
  background: var(--bg-sunk);
  border-top: 1px solid var(--line-soft);
}
.site-footer__grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1fr;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--line-soft);
}
@media (min-width: 720px) {
  .site-footer__grid { grid-template-columns: 1.4fr 1fr 1fr; }
}
.site-footer h3 {
  font-family: var(--font-body);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 1.1rem;
}
.footer-links { display: grid; gap: .65rem; }
.footer-links a {
  text-decoration: none;
  color: var(--ink-dim);
  font-size: var(--step--1);
  transition: color .18s ease;
  justify-self: start;
}
.footer-links a:hover { color: var(--accent-bright); }

.social {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  text-decoration: none;
  color: var(--ink-dim);
  font-size: var(--step--1);
  transition: color .18s ease;
}
.social:hover { color: var(--accent-bright); }
.social svg { width: 20px; height: 20px; fill: currentColor; }

.colophon {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  padding-top: 2rem;
  font-size: var(--step--1);
  color: var(--ink-faint);
}

/* --- Scroll reveal --------------------------------------------------------
   Scoped to .js so that with scripting off (or if site.js fails to load) the
   content is simply visible rather than stuck at opacity 0. */
.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s cubic-bezier(.2,.7,.3,1), transform .7s cubic-bezier(.2,.7,.3,1);
  will-change: opacity, transform;
}
.js .reveal[data-visible="true"] { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
}

/* --- Print ---------------------------------------------------------------- */
@media print {
  .site-header, .site-footer, .hero__media, .hero__scrim, .btn { display: none !important; }
  body { background: #fff; color: #000; }
}