@import url("/fonts/fonts.css");

:root {
  --bg: oklch(0.975 0.006 80);
  --bg-2: oklch(0.955 0.010 75);
  --bg-3: oklch(0.935 0.014 72);
  --ink: oklch(0.205 0.012 60);
  --ink-2: oklch(0.355 0.012 60);
  --ink-3: oklch(0.520 0.010 65);
  --ink-4: oklch(0.720 0.008 70);
  --rule: oklch(0.880 0.010 70);
  --rule-2: oklch(0.820 0.012 68);
  --accent: oklch(0.545 0.045 55);
  --accent-soft: oklch(0.930 0.018 60);
  --accent-ink: oklch(0.380 0.040 55);
  --ink-hover: oklch(0.280 0.012 60);
  --serif: "Instrument Serif", Georgia, serif;
  --sans: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "Geist Mono", ui-monospace, monospace;
  --max: 1240px;
  --narrow: 780px;
  --pad: clamp(20px, 4vw, 56px);
  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: oklch(0.175 0.010 65);
  --bg-2: oklch(0.220 0.012 65);
  --bg-3: oklch(0.275 0.014 65);
  --ink: oklch(0.930 0.006 80);
  --ink-2: oklch(0.780 0.008 78);
  --ink-3: oklch(0.650 0.010 76);
  --ink-4: oklch(0.470 0.010 75);
  --rule: oklch(0.330 0.012 70);
  --rule-2: oklch(0.420 0.014 70);
  --accent: oklch(0.690 0.052 58);
  --accent-soft: oklch(0.280 0.032 58);
  --accent-ink: oklch(0.820 0.046 62);
  --ink-hover: oklch(0.860 0.008 80);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.55; font-weight: 400; letter-spacing: -.005em; }
a { color: inherit; }
.wrap { max-width: var(--max); margin-inline: auto; padding-inline: var(--pad); }
.wrap-narrow { width: min(100%, calc(var(--narrow) + 2 * var(--pad))); margin-inline: auto; padding-inline: var(--pad); }
.eyebrow { margin: 0; color: var(--ink-3); font-family: var(--mono); font-size: 11px; letter-spacing: .12em; line-height: 1.5; text-transform: uppercase; }

.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--rule); background: color-mix(in oklch, var(--bg) 82%, transparent); backdrop-filter: saturate(150%) blur(14px); }
.site-header .wrap { width: 100%; max-width: 1440px; }
.nav-inner { height: 72px; display: flex; align-items: center; justify-content: space-between; gap: clamp(12px, 1.25vw, 20px); }
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; flex-shrink: 0; }
.brand-logo { width: 34px; height: 34px; display: grid; place-items: center; overflow: hidden; border: 1px solid var(--rule); border-radius: 50%; background: var(--bg); }
.brand img { width: 100%; height: 100%; display: block; object-fit: cover; }
.brand-mark { font-size: 17px; font-weight: 500; letter-spacing: .05em; }
.brand-tag { color: var(--ink-3); font-family: var(--serif); font-size: 15px; font-style: italic; }
.nav-links { display: flex; align-items: center; justify-content: flex-end; gap: clamp(10px, 1.1vw, 16px); min-width: 0; }
.nav-links a { color: var(--ink-2); font-size: clamp(12px, .95vw, 14px); line-height: 1.25; text-decoration: none; white-space: nowrap; }
.nav-links a:hover { color: var(--ink); }
.nav-links .nav-research, .nav-links .nav-academy { min-height: 36px; padding: 0 14px; display: inline-flex; align-items: center; border: 1px solid var(--rule-2); border-radius: 999px; color: var(--ink); font-weight: 500; }
.nav-links .nav-research { border-color: var(--accent); font-size: 12px; letter-spacing: .035em; }
.nav-links .nav-research:hover { background: var(--accent-soft); }
.nav-links .nav-cta { min-height: 40px; padding: 0 18px; display: inline-flex; align-items: center; border-radius: 999px; background: var(--ink); color: var(--bg); font-size: 14px; font-weight: 500; }
.theme-toggle { height: 36px; min-width: 72px; padding: 0 10px; display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--rule-2); border-radius: 999px; background: var(--bg-2); color: var(--ink-2); font-family: var(--mono); font-size: 10.5px; letter-spacing: .06em; text-transform: uppercase; cursor: pointer; transition: background .25s ease, border-color .25s ease, color .25s ease; }
.theme-toggle:hover { border-color: var(--ink); color: var(--ink); }
.theme-toggle-track { width: 26px; height: 14px; padding: 2px; display: inline-flex; align-items: center; flex-shrink: 0; border: 1px solid var(--rule-2); border-radius: 999px; }
.theme-toggle-thumb { width: 8px; height: 8px; border-radius: 999px; background: var(--accent); transform: translateX(0); transition: transform .25s ease, background .25s ease; }
:root[data-theme="dark"] .theme-toggle-thumb { transform: translateX(12px); }

.display { font-family: var(--sans); font-weight: 400; letter-spacing: -.028em; line-height: 1.02; }
.display em, .serif-em { font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: -.01em; }
.lede { max-width: 60ch; color: var(--ink-2); font-size: clamp(17px, 1.35vw, 19px); line-height: 1.55; letter-spacing: -.005em; }
.btn { height: 48px; padding: 0 22px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; border: 1px solid transparent; border-radius: 999px; color: var(--ink); font-size: 15px; font-weight: 500; text-decoration: none; transition: background .25s ease, color .25s ease, border-color .25s ease; }
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: var(--ink-hover); }
.btn-ghost { border-color: var(--rule-2); background: transparent; }
.btn-ghost:hover { border-color: var(--ink); }

.archive-hero { min-height: auto; padding-block: clamp(56px, 8vw, 96px) clamp(80px, 9vw, 120px); }
.hero-eyebrow { margin-bottom: 28px; display: flex; align-items: center; gap: 14px; }
.hero-eyebrow::before { content: ""; width: 10px; height: 10px; flex: 0 0 auto; border-radius: 50%; background: var(--accent); }
.archive-copy { width: 100%; }
.archive-hero h1 { max-width: 18ch; margin: 0; font-size: clamp(40px, 6.2vw, 84px); }
.archive-hero h1 em { position: relative; top: .075em; }
.hero-fin { margin: 22px 0 0; color: var(--ink-3); font-size: clamp(18px, 1.6vw, 22px); }
.archive-intro { margin: 26px 0 0; }
.hero-cta { margin-top: 36px; display: flex; flex-wrap: wrap; gap: 12px; }
.research-rail { margin-top: clamp(64px, 8vw, 110px); padding: clamp(28px, 3.5vw, 48px); display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; overflow: hidden; border: 1px solid var(--rule); border-radius: 18px; background: var(--rule); }
.research-rail > div { min-height: 112px; padding: 18px 20px; display: flex; flex-direction: column; justify-content: space-between; gap: 20px; background: var(--bg-2); }
.research-rail span { color: var(--ink-3); font: 11px/1.4 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.research-rail strong { font-size: 16px; font-weight: 500; }
.read-link, .try-box a { display: inline-flex; gap: 8px; margin-top: 24px; color: var(--ink); font-weight: 500; text-decoration: none; border-bottom: 1px solid var(--rule-2); }
.archive-list { padding-block: clamp(65px, 8vw, 110px); border-top: 1px solid var(--rule); }
.archive-heading { display: flex; justify-content: space-between; gap: 24px; margin-bottom: 34px; color: var(--ink-3); font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; }
.issue-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.issue-card, .empty-state { min-height: 310px; padding: clamp(25px, 3vw, 38px); border: 1px solid var(--rule); border-radius: 18px; background: var(--bg-2); }
.issue-meta { display: flex; justify-content: space-between; gap: 16px; color: var(--ink-3); font-family: var(--mono); font-size: 11px; text-transform: uppercase; }
.issue-card h2, .empty-state h2 { margin: 42px 0 14px; font-family: var(--serif); font-size: clamp(31px, 3.5vw, 46px); font-weight: 400; line-height: 1.03; }
.issue-card h2 a { text-decoration: none; }
.issue-card p, .empty-state p { color: var(--ink-2); }
.empty-state { grid-column: 1 / -1; }
.empty-state h2 { max-width: 17ch; }
.empty-state > p:last-child { max-width: 60ch; }

.article-hero { padding-block: clamp(56px, 8vw, 96px) clamp(64px, 8vw, 104px); }
.back-link { display: inline-block; margin-bottom: 52px; color: var(--ink-3); font-size: 13px; text-decoration: none; }
.article-hero h1 { margin: 18px 0 24px; font-family: var(--sans); font-size: clamp(40px, 6.2vw, 84px); font-weight: 400; letter-spacing: -.028em; line-height: 1.02; }
.article-intro { max-width: 60ch; margin: 0; color: var(--ink-2); font-size: clamp(17px, 1.35vw, 19px); line-height: 1.55; letter-spacing: -.005em; }
.meta { display: flex; flex-wrap: wrap; gap: 12px 26px; margin-top: 30px; color: var(--ink-3); font-family: var(--mono); font-size: 11px; letter-spacing: .06em; text-transform: uppercase; }
.quick { padding-block: 42px; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.quick ul { margin: 24px 0 0; padding: 0; list-style: none; display: grid; gap: 16px; }
.quick li { display: grid; grid-template-columns: 20px 1fr; gap: 12px; color: var(--ink-2); font-size: 17px; }
.quick li::before { content: "\2192"; color: var(--accent); }
.stories { padding-block: clamp(68px, 9vw, 120px); }
.story { display: grid; grid-template-columns: 52px 1fr; gap: clamp(20px, 4vw, 46px); padding-block: clamp(55px, 7vw, 86px); border-top: 1px solid var(--rule); }
.story:first-child { padding-top: 0; border-top: 0; }
.story-number { padding-top: 9px; color: var(--accent); font-family: var(--mono); font-size: 12px; }
.story h2 { max-width: 20ch; margin: 0 0 40px; font-family: var(--serif); font-size: clamp(36px, 5vw, 58px); font-weight: 400; letter-spacing: -.035em; line-height: 1; }
.story h3 { margin: 26px 0 7px; font-family: var(--mono); font-size: 11px; font-weight: 500; letter-spacing: .11em; text-transform: uppercase; }
.story p { margin: 0; color: var(--ink-2); font-size: 17px; }
.sources { margin-top: 28px; border-top: 1px solid var(--rule); padding-top: 16px; }
.sources summary { color: var(--ink-3); font-family: var(--mono); font-size: 11px; cursor: pointer; text-transform: uppercase; letter-spacing: .08em; }
.sources ul { margin: 15px 0 0; padding: 0; list-style: none; display: grid; gap: 9px; }
.sources li { display: grid; grid-template-columns: 150px 1fr; gap: 14px; font-size: 13px; }
.sources li span { color: var(--ink-3); }
.sources a { overflow-wrap: anywhere; }
.weekly-view { padding-block: clamp(58px, 8vw, 90px); border-top: 1px solid var(--rule); }
.weekly-view h2, .try-box h2 { margin: 18px 0 16px; font-family: var(--serif); font-size: clamp(38px, 5vw, 58px); font-weight: 400; line-height: 1; }
.weekly-view > p:last-child, .try-box > p { color: var(--ink-2); font-size: 18px; }
.try-box { margin-bottom: 70px; padding: clamp(28px, 5vw, 48px); border-radius: 18px; background: var(--accent-soft); }
.disclosure { margin-bottom: clamp(70px, 10vw, 130px); padding-top: 25px; border-top: 1px solid var(--rule); color: var(--ink-3); font-size: 13px; }
.disclosure p { margin: 6px 0 0; }

.site-footer { border-top: 1px solid var(--rule); padding-block: 48px; }
.footer-inner { display: flex; justify-content: space-between; gap: 28px; }
.footer-inner > div { display: flex; gap: 18px; align-items: baseline; }
.footer-inner span { color: var(--ink-3); font-family: var(--serif); font-style: italic; }
.footer-inner a { color: var(--ink-2); font-size: 13px; text-decoration: none; }

@media (max-width: 780px) {
  .archive-hero h1 { font-size: clamp(36px, 9vw, 56px); }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .research-rail { grid-template-columns: 1fr; }
  .article-hero h1 { font-size: clamp(36px, 9vw, 56px); }
  .issue-grid { grid-template-columns: 1fr; }
  .story { grid-template-columns: 32px 1fr; }
  .sources li { grid-template-columns: 1fr; gap: 2px; }
  .footer-inner, .footer-inner > div { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 1320px) {
  .nav-inner { height: 64px; }
  .brand-tag { display: none; }
  .nav-links { gap: 10px; }
}

@media (max-width: 860px) {
  .nav-links .nav-academy { display: none; }
}

@media (max-width: 680px) {
  .theme-toggle { display: none; }
}

@media (max-width: 440px) {
  .nav-links .nav-cta { display: none; }
  .nav-links .nav-research { min-height: 38px; padding-inline: 12px; font-size: 11px; }
  .brand-mark { font-size: 15px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}