:root {
  --ink: #15202b;
  --ink-soft: #3d4a57;
  --muted: #5f6b77;
  --line: #dde3e8;
  --bg: #f6f8f9;
  --card: #ffffff;
  --night: #102030;
  --night-2: #18324a;
  --volt: #b8f04a;
  --volt-dark: #3c7a12;
  --ice: #e6f3fb;
  --ice-line: #b9dcf0;
  --warn: #fff4e0;
  --warn-line: #f0c674;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 32, 48, .06), 0 4px 14px rgba(16, 32, 48, .06);
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

a { color: var(--volt-dark); text-underline-offset: 2px; }
a:hover { color: var(--ink); }

img, svg { max-width: 100%; height: auto; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 760px; margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header { background: var(--night); color: #fff; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 14px; padding-bottom: 14px; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-family: "Space Grotesk", "Inter", sans-serif; font-weight: 700; font-size: 1.2rem; letter-spacing: -.01em; }
.logo:hover { color: #fff; }
.logo svg { width: 30px; height: 30px; flex: none; }
.logo span b { color: var(--volt); font-weight: 700; }
.nav { display: flex; gap: 18px; flex-wrap: wrap; }
.nav a { color: #d6e2ec; text-decoration: none; font-size: .95rem; }
.nav a:hover { color: var(--volt); }

/* Hero */
.hero { background: linear-gradient(160deg, var(--night) 0%, var(--night-2) 100%); color: #fff; padding: 56px 0 64px; }
.hero h1 { font-family: "Space Grotesk", "Inter", sans-serif; font-size: clamp(2rem, 5vw, 3.1rem); line-height: 1.12; margin: 0 0 16px; letter-spacing: -.02em; max-width: 780px; }
.hero h1 em { font-style: normal; color: var(--volt); }
.hero p { color: #c9d6e2; font-size: 1.12rem; max-width: 660px; margin: 0 0 24px; }
.btn { display: inline-block; background: var(--volt); color: var(--night); font-weight: 700; padding: 12px 20px; border-radius: 8px; text-decoration: none; }
.btn:hover { background: #fff; color: var(--night); }
.btn-ghost { background: transparent; color: #fff; border: 1px solid #4b6680; margin-left: 8px; }
.btn-ghost:hover { background: var(--night-2); color: #fff; }

/* Sections */
.section { padding: 52px 0; }
.section h2 { font-family: "Space Grotesk", "Inter", sans-serif; font-size: 1.7rem; letter-spacing: -.01em; margin: 0 0 8px; }
.section .lede { color: var(--muted); margin: 0 0 28px; max-width: 680px; }
.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.card h3 { margin: 0 0 6px; font-size: 1.12rem; }
.card p { margin: 0 0 12px; color: var(--ink-soft); font-size: .97rem; }
.card .tag { display: inline-block; font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--volt-dark); margin-bottom: 8px; }
.card.soon { background: transparent; box-shadow: none; border-style: dashed; }
.card.soon .tag { color: var(--muted); }
.season { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.season div { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; }
.season strong { display: block; font-family: "Space Grotesk", "Inter", sans-serif; }
.season span { color: var(--muted); font-size: .93rem; }

/* Article */
.article-head { background: var(--night); color: #fff; padding: 40px 0 36px; }
.breadcrumb { font-size: .88rem; color: #9fb3c6; margin-bottom: 14px; }
.breadcrumb a { color: #c9d6e2; }
.article-head h1 { font-family: "Space Grotesk", "Inter", sans-serif; font-size: clamp(1.8rem, 4.4vw, 2.6rem); line-height: 1.15; margin: 0 0 14px; letter-spacing: -.02em; }
.dek { color: #c9d6e2; font-size: 1.1rem; margin: 0 0 16px; }
.byline { font-size: .9rem; color: #9fb3c6; }
.disclosure { background: var(--ice); border-bottom: 1px solid var(--ice-line); font-size: .9rem; color: var(--ink-soft); padding: 10px 0; }

.post { padding: 36px 0 56px; }
.post h2 { font-family: "Space Grotesk", "Inter", sans-serif; font-size: 1.6rem; line-height: 1.25; margin: 48px 0 12px; letter-spacing: -.01em; scroll-margin-top: 16px; }
.post h3 { font-size: 1.2rem; margin: 30px 0 8px; scroll-margin-top: 16px; }
.post p, .post li { color: #24313d; }
.post ul, .post ol { padding-left: 1.3em; }
.post li { margin-bottom: 6px; }

.toc { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 22px; margin: 8px 0 28px; }
.toc strong { display: block; margin-bottom: 6px; }
.toc ol { margin: 0; padding-left: 1.2em; columns: 2; column-gap: 32px; font-size: .95rem; }
.toc li { break-inside: avoid; }

.quick { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); margin: 22px 0; }
.quick div { background: var(--night); color: #fff; border-radius: var(--radius); padding: 16px; }
.quick b { display: block; color: var(--volt); font-family: "Space Grotesk", "Inter", sans-serif; font-size: 1.05rem; }
.quick span { color: #c9d6e2; font-size: .92rem; }

.table-wrap { overflow-x: auto; margin: 18px 0 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
table { border-collapse: collapse; width: 100%; font-size: .93rem; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: #eef2f5; font-weight: 700; white-space: nowrap; }
tr:last-child td { border-bottom: 0; }

.pick { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; margin: 26px 0; box-shadow: var(--shadow); }
.pick .badge { display: inline-block; background: var(--night); color: var(--volt); font-size: .78rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; border-radius: 6px; padding: 4px 10px; margin-bottom: 10px; }
.pick h3 { margin-top: 0; font-size: 1.3rem; }
.post .specs { display: grid; gap: 8px; grid-template-columns: repeat(auto-fit, minmax(128px, 1fr)); margin: 14px 0; padding: 0; list-style: none; }
.specs li { background: #f1f5f8; border-radius: 8px; padding: 8px 10px; font-size: .9rem; margin: 0; }
.specs li b { display: block; font-size: .75rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.proscons { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); margin: 14px 0; }
.proscons div { border-radius: 8px; padding: 12px 16px; }
.proscons .pros { background: #eef8e6; }
.proscons .cons { background: #fdeeee; }
.proscons h4 { margin: 0 0 6px; font-size: .95rem; }
.proscons ul { margin: 0; padding-left: 1.1em; font-size: .94rem; }
.amz { display: inline-block; background: #ffd24d; color: #1b1b1b; font-weight: 700; text-decoration: none; border-radius: 8px; padding: 10px 16px; margin-top: 6px; }
.amz:hover { background: #ffc21a; color: #1b1b1b; }

.callout { background: var(--ice); border-left: 4px solid #3a8fc4; border-radius: 0 var(--radius) var(--radius) 0; padding: 14px 18px; margin: 22px 0; }
.callout.warn { background: var(--warn); border-left-color: #d99a1e; }
.callout p:last-child { margin-bottom: 0; }
.callout p:first-child { margin-top: 0; }

.math { font-family: ui-monospace, "SFMono-Regular", Consolas, monospace; font-size: .92rem; background: #f1f5f8; border-radius: 8px; padding: 12px 14px; margin: 14px 0; overflow-x: auto; }

figure.chart { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin: 22px 0; }
figure.chart figcaption { font-size: .88rem; color: var(--muted); margin-top: 8px; }

.faq details { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 18px; margin: 10px 0; }
.faq summary { font-weight: 700; cursor: pointer; }
.faq details p { margin: 10px 0 0; }

.sources { font-size: .9rem; color: var(--ink-soft); }

/* Footer */
.site-footer { background: var(--night); color: #9fb3c6; padding: 32px 0; font-size: .9rem; }
.site-footer a { color: #d6e2ec; }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 28px; justify-content: space-between; }
.site-footer p { margin: 0; max-width: 640px; }
.footer-links { display: flex; gap: 16px; flex-wrap: wrap; }

@media (max-width: 640px) {
  body { font-size: 16px; }
  .toc ol { columns: 1; }
  .btn-ghost { margin: 10px 0 0; }
  .hero { padding: 40px 0 46px; }
  .section { padding: 40px 0; }
  .pick { padding: 18px; }
}