/* ==========================================================================
   Archives of Arcana — aoa.arpo.cc
   Ink-dark library, gold leaf, arcane cyan.
   ========================================================================== */

@font-face { font-family: "Cinzel"; src: url("../fonts/cinzel-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Cinzel"; src: url("../fonts/cinzel-latin-700-normal.woff2") format("woff2"); font-weight: 700; font-display: swap; }
@font-face { font-family: "EB Garamond"; src: url("../fonts/eb-garamond-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "EB Garamond"; src: url("../fonts/eb-garamond-latin-ext-400-normal.woff2") format("woff2"); font-weight: 400; font-display: swap; unicode-range: U+0100-024F, U+1E00-1EFF; }
@font-face { font-family: "EB Garamond"; src: url("../fonts/eb-garamond-latin-400-italic.woff2") format("woff2"); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: "Pixelify Sans"; src: url("../fonts/pixelify-sans-latin-400-normal.woff2") format("woff2"); font-display: swap; }

:root {
  --ink: #0b0915;
  --ink-2: #120f22;
  --ink-3: #1b1730;
  /* Accent matches the logo: frost white fading into pale ice-cyan */
  --accent-rgb: 178, 232, 242;
  --line: rgba(var(--accent-rgb), .16);
  --parchment: #e9eef3;
  --mute: #9fa3bf;
  --gold: #b2e8f2;      /* ice  (variable name kept for history) */
  --gold-hi: #eefbfd;   /* frost */
  --on-accent: #0b0915;
  --arcane: #7cc4e0;
  --display: "Cinzel", "Trajan Pro", Georgia, serif;
  --body: "EB Garamond", Garamond, Georgia, serif;
  --pixel: "Pixelify Sans", ui-monospace, monospace;
  --wrap: 1120px;
  --nav-h: 64px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }
body {
  margin: 0;
  background: var(--ink);
  color: var(--parchment);
  font: 400 1.2rem/1.65 var(--body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--gold-hi); }
code { font-family: ui-monospace, monospace; font-size: .85em; background: var(--ink-3); padding: .1em .4em; border-radius: 4px; }
[hidden] { display: none !important; }

.skip { position: absolute; left: -999px; top: 8px; background: var(--gold); color: var(--ink); padding: 8px 14px; z-index: 100; }
.skip:focus { left: 8px; }
:focus-visible { outline: 2px solid var(--arcane); outline-offset: 3px; }

.wrap { width: min(var(--wrap), 100% - 32px); margin-inline: auto; }
.narrow { max-width: 720px; text-align: center; }
.center { text-align: center; }
.mute { color: var(--mute); }
.small { font-size: .95rem; }
.lead { font-size: 1.45rem; line-height: 1.55; }

.eyebrow {
  font: 400 .85rem/1 var(--pixel);
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--arcane);
  margin: 0 0 1rem;
}

/* --- Ornament divider ---------------------------------------------------- */
.ornament { display: flex; align-items: center; justify-content: center; gap: 14px; color: var(--gold); margin: 1.2rem auto 1.8rem; font-size: .9rem; }
.ornament span { height: 1px; width: min(120px, 20vw); background: linear-gradient(90deg, transparent, var(--gold)); }
.ornament span:last-child { transform: scaleX(-1); }

/* --- Nav ----------------------------------------------------------------- */
.nav {
  position: fixed; inset: 0 0 auto; z-index: 50; height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 0 clamp(16px, 4vw, 40px);
  transition: background .3s, border-color .3s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled, .nav-story { background: rgba(11, 9, 21, .86); backdrop-filter: blur(10px); border-color: var(--line); }
.nav-brand { font: 700 1rem/1 var(--display); letter-spacing: .12em; text-transform: uppercase; color: var(--parchment); text-decoration: none; white-space: nowrap; }
.nav-brand img { height: 34px; width: auto; display: block; }
.nav nav { display: flex; gap: clamp(12px, 2.4vw, 28px); align-items: center; }
.nav nav a { white-space: nowrap; font: 400 .8rem/1 var(--display); letter-spacing: .14em; text-transform: uppercase; color: var(--mute); text-decoration: none; transition: color .2s; }
.nav nav a:hover { color: var(--gold-hi); }
.nav nav a.nav-cta { color: var(--ink); background: var(--gold); padding: 9px 14px; border-radius: 2px; }
.nav nav a.nav-cta:hover { background: var(--gold-hi); color: var(--ink); }
@media (max-width: 760px) {
  .nav nav a:not(.nav-cta):not([href="./"]) { display: none; }
  .nav-brand img { height: 28px; }
}

/* --- Buttons ------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 52px; padding: 0 26px;
  font: 700 .9rem/1 var(--display); letter-spacing: .14em; text-transform: uppercase;
  text-decoration: none; border-radius: 2px; cursor: pointer;
  transition: transform .15s, background .2s, box-shadow .2s, color .2s;
  border: 1px solid transparent;
}
.btn:active { transform: translateY(1px); }
.btn b { font-weight: 700; }
.btn-primary { background: linear-gradient(180deg, var(--gold-hi), var(--gold)); color: var(--on-accent); box-shadow: 0 0 0 1px rgba(var(--accent-rgb), .45), 0 8px 30px -8px rgba(var(--accent-rgb), .45); }
.btn-primary:hover { box-shadow: 0 0 0 1px var(--gold-hi), 0 10px 40px -6px rgba(var(--accent-rgb), .7); }
.btn-ghost { color: var(--parchment); border-color: var(--line); background: rgba(11, 9, 21, .4); }
.btn-ghost:hover, .btn-outline:hover { border-color: var(--gold); color: var(--gold-hi); }
.btn-outline { color: var(--parchment); border-color: rgba(var(--accent-rgb), .35); }
.btn-disabled { color: var(--mute); border: 1px dashed var(--line); cursor: default; }
.os-icon { width: 22px; height: 22px; flex: none; }

/* --- Hero ---------------------------------------------------------------- */
.hero {
  position: relative; min-height: 100svh; display: grid; place-items: center;
  text-align: center; padding: calc(var(--nav-h) + 40px) 16px 90px; overflow: hidden; isolation: isolate;
}
.hero-bg { position: absolute; inset: 0; z-index: -1; }
.hero-bg img, .hero-bg video { width: 100%; height: 100%; object-fit: cover; object-position: 50% 40%; transform: scale(1.04); animation: drift 30s ease-in-out infinite alternate; }
.hero-bg picture { display: contents; }
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 50% 38%, rgba(11, 9, 21, .55) 0%, rgba(11, 9, 21, .15) 45%, transparent 70%),
    linear-gradient(180deg, rgba(11, 9, 21, .55) 0%, transparent 22%, transparent 55%, rgba(11, 9, 21, .7) 80%, var(--ink) 100%);
}
@keyframes drift { to { transform: scale(1.09) translate(-1%, -.6%); } }

.logo { margin: 0 auto; width: min(640px, 88vw); }
.logo img {
  width: 100%; height: auto;
  filter: drop-shadow(0 0 24px rgba(var(--accent-rgb), .35)) drop-shadow(0 6px 18px rgba(0, 0, 0, .7));
  animation: logo-in 1.4s ease-out both;
}
@keyframes logo-in { from { opacity: 0; transform: translateY(10px) scale(.98); filter: blur(6px); } }
.tagline { font-size: clamp(1.2rem, 2.4vw, 1.5rem); font-style: italic; color: var(--parchment); margin: 0 0 2.2rem; text-shadow: 0 2px 10px rgba(0, 0, 0, .8); }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero-meta { font: .8rem var(--pixel); letter-spacing: .2em; text-transform: uppercase; color: var(--mute); margin-top: 1.4rem; }

.scroll-hint { position: absolute; left: 50%; bottom: 28px; translate: -50% 0; width: 26px; height: 42px; border: 1px solid var(--line); border-radius: 14px; }
.scroll-hint span { position: absolute; left: 50%; top: 8px; width: 3px; height: 8px; margin-left: -1.5px; background: var(--gold); border-radius: 2px; animation: hint 2s infinite; }
@keyframes hint { 0% { opacity: 0; transform: translateY(0); } 30% { opacity: 1; } 100% { opacity: 0; transform: translateY(14px); } }

/* --- Sections ------------------------------------------------------------ */
.section { padding: clamp(80px, 12vw, 140px) 0; position: relative; }
.h-section { font: 700 clamp(2rem, 5vw, 3.1rem)/1.1 var(--display); letter-spacing: .08em; text-transform: uppercase; text-align: center; margin: 0; color: var(--parchment); }

.about { background: radial-gradient(ellipse at 50% 0%, rgba(143, 211, 255, .07), transparent 60%); }
.about .narrow p:not(.lead) { color: var(--mute); }
.pillars { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; margin-top: 70px; }
.pillar { padding: 34px 28px; text-align: center; border: 1px solid var(--line); background: linear-gradient(180deg, var(--ink-2), transparent); position: relative; }
.pillar::before, .pillar::after { content: ""; position: absolute; width: 14px; height: 14px; border: 1px solid var(--gold); }
.pillar::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.pillar::after { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }
.pillar-glyph { font-size: 1.8rem; color: var(--arcane); text-shadow: 0 0 18px rgba(143, 211, 255, .6); }
.pillar h3 { font: 700 1.2rem var(--display); letter-spacing: .18em; text-transform: uppercase; margin: .6rem 0 .5rem; color: var(--gold-hi); }
.pillar p { margin: 0; color: var(--mute); }

/* --- Gallery ------------------------------------------------------------- */
.shots { background: var(--ink-2); border-block: 1px solid var(--line); }
/* Flex-wrap with centring: any incomplete last row sits in the middle, whatever the count. */
.gallery { --gap: 14px; display: flex; flex-wrap: wrap; justify-content: center; gap: var(--gap); }
.shot { position: relative; padding: 0; border: 1px solid var(--line); background: #000; cursor: zoom-in; flex: 0 0 calc((100% - 3 * var(--gap)) / 4); overflow: hidden; aspect-ratio: 16 / 9; }
.shot picture { display: contents; }
.shot-cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 22px 12px 8px; background: linear-gradient(transparent, rgba(11, 9, 21, .85)); font: .75rem var(--pixel); letter-spacing: .15em; text-transform: uppercase; color: var(--parchment); text-align: left; opacity: 0; transition: opacity .3s; }
.shot:hover .shot-cap, .shot:focus-visible .shot-cap { opacity: 1; }
.shot:nth-child(1), .shot:nth-child(2) { flex-basis: calc((100% - var(--gap)) / 2); }
.shot img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s, filter .3s; filter: saturate(.95) brightness(.92); }
.shot:hover img, .shot:focus-visible img { transform: scale(1.04); filter: none; }
@media (max-width: 760px) { .shot, .shot:nth-child(2) { flex-basis: calc((100% - var(--gap)) / 2); } .shot:nth-child(1) { flex-basis: 100%; } }

.lightbox { border: 0; padding: 0; background: transparent; max-width: 100vw; max-height: 100vh; width: 100vw; height: 100vh; }
.lightbox::backdrop { background: rgba(5, 4, 10, .94); }
.lightbox[open] { display: grid; place-items: center; }
.lb-figure { margin: 0; display: grid; justify-items: center; gap: 10px; }
.lightbox img { max-width: min(1600px, 92vw); max-height: 82vh; border: 1px solid var(--line); }
.lb-figure figcaption { color: var(--mute); font-style: italic; font-size: 1.05rem; min-height: 1.4em; text-align: center; padding: 0 16px; }
.lb-close, .lb-nav { position: fixed; background: none; border: 0; color: var(--parchment); font: 2.6rem/1 var(--body); cursor: pointer; padding: 12px 18px; opacity: .7; }
.lb-close:hover, .lb-nav:hover { opacity: 1; color: var(--gold-hi); }
.lb-close { top: 10px; right: 10px; }
.lb-prev { left: 4px; top: 50%; translate: 0 -50%; }
.lb-next { right: 4px; top: 50%; translate: 0 -50%; }

/* --- Making-of teaser ---------------------------------------------------- */
.making { padding-inline: 16px; }
.making-card { display: grid; grid-template-columns: 1.2fr 1fr; max-width: var(--wrap); margin: auto; text-decoration: none; color: inherit; border: 1px solid var(--line); background: var(--ink-2); overflow: hidden; }
.making-card img { width: 100%; height: 100%; object-fit: cover; min-height: 320px; transition: transform .8s; }
.making-card:hover img { transform: scale(1.04); }
.making-text { padding: clamp(28px, 5vw, 56px); align-self: center; }
.making-text h2 { font: 700 clamp(1.8rem, 3.6vw, 2.5rem)/1.1 var(--display); margin: 0 0 1rem; }
.making-text p:not(.eyebrow) { color: var(--mute); }
.link-arrow { font: 700 .85rem var(--display); letter-spacing: .16em; text-transform: uppercase; color: var(--gold-hi); }
.link-arrow span { display: inline-block; transition: transform .2s; }
.making-card:hover .link-arrow span { transform: translateX(6px); }
@media (max-width: 760px) { .making-card { grid-template-columns: 1fr; } .making-card img { min-height: 200px; aspect-ratio: 16/9; } }

/* --- Download ------------------------------------------------------------ */
.download { background: radial-gradient(ellipse at 50% 100%, rgba(var(--accent-rgb), .07), transparent 60%); }
.mobile-note { max-width: 560px; margin: 0 auto 28px; padding: 14px 18px; text-align: center; border: 1px solid rgba(143, 211, 255, .3); color: var(--arcane); font-size: 1.05rem; }
.platforms { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 36px; align-items: stretch; }
.platform { position: relative; text-align: center; padding: 40px 24px 26px; border: 1px solid var(--line); background: var(--ink-2); display: flex; flex-direction: column; align-items: center; transition: border-color .3s, transform .3s, box-shadow .3s; }
.platform .os-icon { width: 40px; height: 40px; color: var(--mute); }
.platform h3 { font: 700 1.3rem var(--display); letter-spacing: .14em; text-transform: uppercase; margin: 14px 0 2px; }
.platform p { margin: 0; }
.platform .btn { margin-top: 22px; width: 100%; }
.platform .file { margin-top: 10px; word-break: break-all; }
.platform .badge { position: absolute; top: -12px; left: 50%; translate: -50% 0; background: var(--gold); color: var(--on-accent); font: .72rem/1 var(--pixel); letter-spacing: .12em; text-transform: uppercase; padding: 6px 10px; white-space: nowrap; opacity: 0; transition: opacity .3s; }
.platform.is-recommended { border-color: var(--gold); box-shadow: 0 0 0 1px rgba(var(--accent-rgb), .35), 0 20px 60px -30px rgba(var(--accent-rgb), .55); transform: translateY(-6px); }
.platform.is-recommended .badge { opacity: 1; }
.platform.is-recommended .os-icon { color: var(--gold-hi); }
@media (max-width: 760px) {
  .platforms { grid-template-columns: 1fr; gap: 24px; }
  .platform.is-recommended { order: -1; transform: none; }
}

.firstrun { max-width: 720px; margin: 64px auto 0; }
.firstrun h3 { font: 700 1.1rem var(--display); letter-spacing: .14em; text-transform: uppercase; margin: 0 0 .4rem; }
.firstrun > p { margin-bottom: 1.4rem; }
details { border-top: 1px solid var(--line); }
details:last-child { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; padding: 14px 4px; font-size: 1.1rem; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--gold); font-family: var(--display); }
details[open] summary::after { content: "−"; }
details p { margin: 0 4px 18px; color: var(--mute); }

/* --- Coffee -------------------------------------------------------------- */
.coffee { padding-block: 70px 90px; }
.coffee .narrow { border: 1px dashed var(--line); padding: 40px clamp(20px, 5vw, 56px); max-width: 640px; }
.coffee-cup { font-size: 2rem; filter: grayscale(.3); }
.coffee-text { font-style: italic; font-size: 1.25rem; margin: .6rem 0 1.6rem; }
.btn-coffee { background: transparent; color: var(--gold-hi); border-color: var(--gold); min-height: 46px; font-size: .8rem; }
.btn-coffee:hover { background: var(--gold); color: var(--on-accent); }
.coffee .small { margin-top: 1rem; }

/* --- Footer -------------------------------------------------------------- */
.footer { text-align: center; padding: 40px 16px 50px; border-top: 1px solid var(--line); color: var(--mute); font-size: 1rem; }
.footer p { margin: .3rem 0; }
.footer-title { font: 700 1rem var(--display); letter-spacing: .2em; text-transform: uppercase; color: var(--parchment); }
.footer-links { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; margin: 1rem 0 !important; }
.footer-links a { color: var(--mute); text-decoration: none; }
.footer-links a:hover { color: var(--gold-hi); }
.fine { font-size: .85rem; opacity: .75; max-width: 560px; margin-inline: auto !important; }

/* --- Story page ---------------------------------------------------------- */
.read-progress { position: fixed; z-index: 60; left: 0; right: 0; top: var(--nav-h); height: 2px; background: transparent; }
.read-progress span { display: block; height: 100%; background: var(--gold); transform: scaleX(0); transform-origin: left; }

.story-hero { position: relative; min-height: 78svh; display: grid; place-items: center; text-align: center; padding: calc(var(--nav-h) + 60px) 16px 80px; isolation: isolate; overflow: hidden; }
.story-hero-bg { position: absolute; inset: 0; z-index: -1; }
.story-hero-bg img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.8) brightness(.55) blur(1px); transform: scale(1.04); }
.story-hero-bg::after { content: ""; position: absolute; inset: 0; background: radial-gradient(ellipse at 50% 50%, rgba(11, 9, 21, .35), rgba(11, 9, 21, .85) 75%), linear-gradient(180deg, transparent 50%, var(--ink)); }
.story-hero h1 { font: 700 clamp(2.2rem, 6vw, 4.4rem)/1.08 var(--display); margin: 0; text-shadow: 0 4px 30px rgba(0, 0, 0, .8); }
.byline { margin: 0; color: var(--mute); font-style: italic; }
.byline strong { color: var(--parchment); font-style: normal; }

.article-wrap { width: min(1180px, 100% - 32px); margin: 0 auto; display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 56px; padding: 40px 0 40px; }
.toc { position: sticky; top: calc(var(--nav-h) + 32px); align-self: start; }
.toc-title { font: .75rem var(--pixel); letter-spacing: .22em; text-transform: uppercase; color: var(--arcane); margin: 0 0 12px; }
.toc ol { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--line); }
.toc a { display: block; padding: 6px 0 6px 16px; margin-left: -1px; border-left: 1px solid transparent; color: var(--mute); text-decoration: none; font-size: 1rem; line-height: 1.3; transition: color .2s, border-color .2s; }
.toc a:hover { color: var(--parchment); }
.toc a.is-current { color: var(--gold-hi); border-left-color: var(--gold); }

.article { max-width: 680px; font-size: 1.28rem; line-height: 1.72; }
.article p { margin: 0 0 1.25em; }
.article p.opening::first-letter { float: left; font: 700 4.6rem/.8 var(--display); color: var(--gold-hi); margin: .06em .06em 0 0; text-shadow: 0 0 24px rgba(var(--accent-rgb), .35); }
.article strong { color: var(--gold-hi); letter-spacing: .04em; }
.article em { color: #fff; }
.chapter { font: 700 1.5rem/1.2 var(--display); letter-spacing: .06em; margin: 2.6em 0 .9em; display: flex; align-items: baseline; gap: 14px; scroll-margin-top: calc(var(--nav-h) + 24px); }
.chapter:first-child { margin-top: .4em; }
.chapter-num { font: .8rem var(--pixel); letter-spacing: .15em; color: var(--arcane); }
.signoff { text-align: right; font-style: italic; color: var(--gold-hi); font-size: 1.4rem; margin-top: 2em !important; }

.story-figures { margin: 2.2em 0; display: grid; gap: 14px; }
.figure-row { grid-template-columns: 1fr 1fr; }
@media (min-width: 1100px) { .story-figures { margin-right: -140px; } }
.story-figures figure { margin: 0; }
.story-figures figcaption, .ce-grid figcaption { font-size: .95rem; color: var(--mute); font-style: italic; margin-top: 8px; line-height: 1.4; }
.photo { display: block; width: 100%; padding: 0; border: 1px solid var(--line); background: var(--ink-2); cursor: zoom-in; overflow: hidden; }
.photo img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; transition: transform .6s, filter .3s; filter: brightness(.92) saturate(.92); }
.photo:hover img, .photo:focus-visible img { transform: scale(1.03); filter: none; }

.ce-gallery { background: var(--ink-2); border-block: 1px solid var(--line); }
.ce-intro { margin: -.6rem 0 2.4rem; }
.ce-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px; }
.ce-grid figure { margin: 0; }
.ce-grid figcaption { font-style: normal; text-align: center; }

.story-end { text-align: center; }
.story-end p { color: var(--mute); margin-bottom: 2rem; }

@media (max-width: 900px) {
  .article-wrap { grid-template-columns: 1fr; gap: 0; }
  .toc { display: none; }
  .article { font-size: 1.18rem; margin: 0 auto; }
}
@media (max-width: 560px) { .figure-row { grid-template-columns: 1fr; } }

/* --- Reveal-on-scroll ---------------------------------------------------- */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s ease; }
.js .reveal.is-visible { opacity: 1; transform: none; }

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