/* Valusis Journal — shared styles.
   Dark is the default theme; light is set with <html data-theme="light"> (see assets/theme.js). */

/* Manrope variable font (weights 200–800), self-hosted so no request goes to Google. */
@font-face {
  font-family: Manrope;
  font-style: normal;
  font-weight: 200 800;
  font-display: swap;
  src: url(/assets/fonts/manrope-latin.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: Manrope;
  font-style: normal;
  font-weight: 200 800;
  font-display: swap;
  src: url(/assets/fonts/manrope-latin-ext.woff2) format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
  --bg: #0b0b0c;
  --bg-deep: #050506;
  --surface: #141416;
  --surface-2: #1b1b1e;
  --text: #ecebe7;
  --muted: #9a978f;
  --border: #26262a;
  --accent: #c8b28a;          /* champagne, like polished movement parts */
  --accent-soft: rgba(200, 178, 138, .14);
  --ring: rgba(236, 235, 231, .045);
  --btn-bg: #ecebe7;
  --btn-text: #0b0b0c;
  --max: 75rem;
  --prose: 42rem;
  --serif: "New York", "Iowan Old Style", "Apple Garamond", Baskerville, "Times New Roman", "Source Serif Pro", serif;
  --sans: Manrope, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --tracking: .18em;
  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg: #f4f2ee;
  --bg-deep: #e9e6e0;
  --surface: #ffffff;
  --surface-2: #f9f8f5;
  --text: #121212;
  --muted: #5d5a54;
  --border: #dcd8d0;
  --accent: #8c7448;
  --accent-soft: rgba(140, 116, 72, .12);
  --ring: rgba(18, 18, 18, .05);
  --btn-bg: #121212;
  --btn-text: #f4f2ee;
  color-scheme: light;
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 500;
  font-size: 1rem;
  line-height: 1.75;
  transition: background-color .25s, color .25s;
}

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

a { color: var(--text); text-underline-offset: 3px; text-decoration-thickness: 1px; text-decoration-color: var(--accent); }
a:hover { color: var(--accent); }

::selection { background: var(--accent); color: var(--bg); }

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

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--surface); color: var(--text); padding: .5rem 1rem;
}
.skip-link:focus { left: 1rem; z-index: 10; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 1rem; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 5;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-header .wrap {
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center;
  gap: 1rem; padding-top: .9rem; padding-bottom: .9rem;
}
.logo {
  grid-column: 2;
  font-family: var(--serif); font-size: 1.7rem; font-weight: 400;
  letter-spacing: .14em; text-transform: uppercase; line-height: 1;
  color: var(--text); text-decoration: none; text-align: center;
}
.logo:hover { color: var(--text); }
.logo small {
  display: block; margin-top: .4rem;
  font-family: var(--sans); font-size: .58rem; letter-spacing: .42em; color: var(--accent);
}
.nav { grid-column: 1; grid-row: 1; display: flex; gap: 1.4rem; flex-wrap: wrap; }
.nav a {
  color: var(--muted); text-decoration: none; font-size: .72rem;
  text-transform: uppercase; letter-spacing: .16em;
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--text); }
.nav a[aria-current="page"] { box-shadow: inset 0 -1px 0 var(--accent); }

.theme-toggle {
  grid-column: 3; justify-self: end;
  display: inline-grid; place-items: center; width: 38px; height: 38px;
  background: transparent; color: var(--text); cursor: pointer;
  border: 1px solid var(--border); border-radius: 50%;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
.theme-toggle svg { width: 17px; height: 17px; }
.theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: none; }

@media (max-width: 640px) {
  .site-header .wrap { grid-template-columns: 1fr auto; }
  .logo { grid-column: 1; text-align: left; }
  .theme-toggle { grid-column: 2; }
  .nav { grid-column: 1 / -1; grid-row: 2; gap: 1.1rem; }
}

/* Typography */
h1, h2, h3 {
  font-family: var(--serif); font-weight: 400; line-height: 1.3;
  text-transform: uppercase; letter-spacing: var(--tracking);
}
h1 { font-size: clamp(1.6rem, 4vw, 2.5rem); margin: 0 0 1.25rem; }
h2 { font-size: clamp(1.1rem, 2.4vw, 1.35rem); margin: 3rem 0 .9rem; }
h3 { font-size: 1rem; margin: 2rem 0 .5rem; }

.article h2::before {
  content: ""; display: block; width: 2rem; height: 1px;
  background: var(--accent); margin-bottom: 1rem;
}

.eyebrow {
  text-transform: uppercase; letter-spacing: .32em; font-size: .7rem;
  color: var(--accent); margin: 0 0 1.25rem;
}
.lead { font-size: 1.1rem; color: var(--muted); max-width: var(--prose); }

/* Hero: concentric rings evoke a watch dial and movement */
.hero {
  position: relative; overflow: hidden; text-align: center;
  padding: 6.5rem 0 6rem;
  background:
    radial-gradient(circle at 50% 50%, var(--accent-soft) 0, transparent 38%),
    repeating-radial-gradient(circle at 50% 50%, var(--ring) 0 1px, transparent 1px 28px),
    var(--bg-deep);
  border-bottom: 1px solid var(--border);
}
.hero::after {
  content: ""; position: absolute; left: 50%; top: 50%;
  width: min(34rem, 90vw); aspect-ratio: 1; transform: translate(-50%, -50%);
  border: 1px solid var(--accent-soft); border-radius: 50%;
  pointer-events: none;
}
.hero .wrap { position: relative; z-index: 1; }
.hero h1 { max-width: 44rem; margin-left: auto; margin-right: auto; }
.hero .lead { margin: 0 auto; }

/* Buttons */
.btn {
  display: inline-block; margin-top: 2rem; padding: .9rem 2.2rem;
  background: var(--btn-bg); color: var(--btn-text); border: 1px solid var(--btn-bg);
  text-decoration: none; font-size: .72rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: .18em;
  transition: background-color .2s, color .2s, border-color .2s;
}
.btn:hover { background: transparent; color: var(--accent); border-color: var(--accent); }

/* Post cards */
.section { padding: 4.5rem 0; }
.section-title { text-align: center; margin-top: 0; margin-bottom: 2.75rem; }
.cards {
  display: grid; gap: 1.5rem;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 20rem), 1fr));
}
.card {
  position: relative; background: var(--surface); border: 1px solid var(--border);
  padding: 2.25rem 1.9rem 1.9rem; transition: border-color .2s, transform .2s;
}
.card::before {
  content: ""; position: absolute; left: 0; top: 0; height: 2px; width: 0;
  background: var(--accent); transition: width .3s;
}
.card:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); transform: translateY(-2px); }
.card:hover::before { width: 100%; }
.card h2, .card h3 { margin: 0 0 .85rem; font-size: .98rem; line-height: 1.55; }
.card h2 a, .card h3 a { color: var(--text); text-decoration: none; }
.card h2 a::after, .card h3 a::after { content: ""; position: absolute; inset: 0; }
.card p { margin: 0 0 1rem; color: var(--muted); font-size: .94rem; }
.meta { font-size: .72rem; color: var(--accent); text-transform: uppercase; letter-spacing: .16em; }

/* Articles and simple pages */
.article { padding: 3.5rem 1rem 5rem; }
.article > * { max-width: var(--prose); margin-left: auto; margin-right: auto; }
.breadcrumb { font-size: .7rem; color: var(--muted); margin-bottom: 2rem; text-transform: uppercase; letter-spacing: .14em; }
.breadcrumb a { color: var(--muted); text-decoration: none; }
.byline {
  display: flex; flex-wrap: wrap; gap: .25rem 1.25rem; font-size: .8rem;
  color: var(--muted); padding-bottom: 1.75rem; margin-bottom: 1.75rem;
  border-bottom: 1px solid var(--border);
}

.takeaways {
  background: var(--surface); border: 1px solid var(--border);
  border-left: 2px solid var(--accent);
  padding: 1.25rem 1.75rem; margin: 2.5rem auto;
}
.takeaways h2 { font-size: .8rem; margin: .25rem 0 .75rem; color: var(--accent); }
.takeaways h2::before { display: none; }
.takeaways ul { margin: 0; padding-left: 1.2rem; }
.takeaways li::marker, .article li::marker { color: var(--accent); }

.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: .92rem; }
th, td { border: 1px solid var(--border); padding: .75rem .9rem; text-align: left; vertical-align: top; }
th { background: var(--surface-2); font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .1em; }

.author-box {
  display: flex; gap: 1.1rem; align-items: flex-start;
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  padding: 1.5rem 0; margin-top: 3.5rem;
}
.author-box .avatar {
  flex: 0 0 52px; width: 52px; height: 52px; border-radius: 50%;
  border: 1px solid var(--accent); color: var(--accent);
  display: grid; place-items: center; font-family: var(--serif); font-size: 1.3rem;
}
.author-box strong { font-family: var(--serif); font-weight: 400; text-transform: uppercase; letter-spacing: .14em; font-size: .88rem; }
.author-box p { margin: .35rem 0 0; font-size: .92rem; color: var(--muted); }

/* Contact */
.contact-card {
  background: var(--surface); border: 1px solid var(--border);
  border-left: 2px solid var(--accent); padding: 1.5rem 1.75rem;
}
.contact-label {
  margin: 0 0 .35rem; font-size: .7rem; text-transform: uppercase;
  letter-spacing: .18em; color: var(--accent);
}
.contact-email {
  font-family: var(--serif); font-size: clamp(1.05rem, 3.5vw, 1.4rem);
  letter-spacing: .02em; text-decoration: none; overflow-wrap: anywhere;
}
.contact-card p:last-child { margin: .6rem 0 0; color: var(--muted); font-size: .92rem; }

.related { margin-top: 3rem; }
.related ul { padding-left: 1.2rem; }

.todo {
  background: #fff3cd; color: #5c4400; border: 1px dashed #c9a227;
  padding: .1rem .4rem; font-size: .9em;
}

/* Footer */
.site-footer {
  background: var(--bg-deep); color: var(--muted);
  border-top: 1px solid var(--border);
  padding: 3.25rem 0 2.25rem; font-size: .8rem;
}
.site-footer .wrap { display: flex; flex-direction: column; align-items: center; gap: 1.25rem; text-align: center; }
.site-footer .logo { font-size: 1.35rem; }
.site-footer nav { display: flex; flex-wrap: wrap; justify-content: center; gap: .75rem 1.5rem; }
.site-footer a { color: var(--muted); text-decoration: none; text-transform: uppercase; letter-spacing: .14em; font-size: .7rem; }
.site-footer a:hover { color: var(--accent); }
.site-footer p { margin: 0; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
}