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

:root{
  --accent:#2563EB; --accent-dark:#1D4ED8;
  --bg:#F6F8FC; --surface:#FFFFFF;
  --ink:#16233A; --ink-2:#475569; --muted:#94A3B8; --muted-2:#8A8880;
  --line:#E2E8F0; --line-soft:#EEF2F7;
  --radius:14px; --maxw:1320px;
  --sans:'Inter','DM Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --display:'Space Grotesk','Inter',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit}
img{max-width:100%;display:block}

/* ---------- layout ---------- */
.container{max-width:var(--maxw);margin:0 auto;padding:0 36px}
.section{padding:64px 0}
.section--tight{padding:44px 0}
@media(max-width:720px){.container{padding:0 20px}.section{padding:44px 0}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  padding:15px 36px;background:rgba(246,248,252,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand__mark{width:22px;height:22px;border-radius:6px;background:var(--accent);display:inline-flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:13px}
.brand__name{font-weight:700;font-size:18px;letter-spacing:-.01em}
.nav{display:flex;gap:26px}
.nav a{font-size:14px;font-weight:500;color:var(--ink-2);text-decoration:none;padding-bottom:5px;
  background-image:linear-gradient(var(--accent),var(--accent));background-size:0% 2px;background-position:0 100%;background-repeat:no-repeat;transition:background-size .25s,color .25s}
.nav a:hover{color:var(--ink);background-size:100% 2px}
.btn-cta{font-size:14px;font-weight:600;color:#fff;background:var(--accent);padding:10px 18px;border-radius:8px;text-decoration:none;transition:background .25s,transform .25s;white-space:nowrap}
.btn-cta:hover{background:var(--accent-dark);transform:translateY(-1px)}
.nav-toggle{display:none}
@media(max-width:900px){
  .site-header{padding:13px 20px}
  .nav{position:fixed;inset:56px 0 auto 0;flex-direction:column;gap:0;background:var(--surface);border-bottom:1px solid var(--line);padding:8px 20px 16px;display:none}
  .nav a{padding:13px 0;border-bottom:1px solid var(--line-soft)}
  #nav-toggle:checked ~ .nav{display:flex}
  .nav-toggle{display:inline-flex;cursor:pointer;font-size:22px;line-height:1;color:var(--ink)}
  .header-cta{display:none}
}

/* ---------- breadcrumbs ---------- */
.crumbs{font-size:13px;color:var(--muted);padding:18px 0 0}
.crumbs a{color:var(--ink-2);text-decoration:none}
.crumbs a:hover{color:var(--accent)}
.crumbs span{margin:0 8px;color:var(--line)}

/* ---------- page hero ---------- */
.eyebrow{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);font-weight:600}
.page-hero{padding:36px 0 8px}
.page-hero h1{font-family:var(--display);font-weight:700;font-size:clamp(34px,5vw,60px);line-height:1.05;letter-spacing:-.025em;margin:14px 0 0;max-width:18ch}
.page-hero .lead{font-size:18px;color:var(--ink-2);margin:18px 0 0;max-width:62ch}

/* ---------- section heading ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:30px}
.sec-head h2{font-family:var(--display);font-weight:600;font-size:clamp(24px,3vw,34px);line-height:1.15;letter-spacing:-.02em}
.sec-head .all-link{font-size:14px;font-weight:500;color:var(--accent);text-decoration:none}
.sec-head .all-link:hover{text-decoration:underline}

/* ---------- rubric tiles ---------- */
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:900px){.tiles{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.tiles{grid-template-columns:1fr}}
.tile{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;text-decoration:none;color:var(--ink);transition:border-color .2s,transform .2s,box-shadow .2s}
.tile:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 8px 26px rgba(37,99,235,.08)}
.tile .num{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--muted)}
.tile h3{font-size:19px;font-weight:600;margin:14px 0 6px}
.tile p{font-size:13.5px;color:var(--ink-2)}

/* ---------- article cards ---------- */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
@media(max-width:1000px){.cards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.cards{grid-template-columns:1fr}}
.card{display:flex;flex-direction:column;text-decoration:none;color:var(--ink)}
.card .cover{aspect-ratio:16/10;border-radius:12px;background:linear-gradient(135deg,#dbe7ff,#eef2ff 45%,#e7e0ff);overflow:hidden}
.card .cover img{width:100%;height:100%;object-fit:cover}
.card .badge{font-size:11px;letter-spacing:.05em;text-transform:uppercase;color:var(--accent);font-weight:600;margin:14px 0 6px}
.card h3{font-size:16px;font-weight:600;line-height:1.3}
.card .meta{font-size:12.5px;color:var(--muted);margin-top:8px}
.card:hover h3{color:var(--accent)}

/* ---------- rating cards (wide) ---------- */
.rcards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:1000px){.rcards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.rcards{grid-template-columns:1fr}}
.rcard{display:flex;flex-direction:column;justify-content:flex-end;min-height:190px;border-radius:14px;padding:20px;text-decoration:none;color:#0b1530;background:linear-gradient(135deg,#cfe0ff,#e9e2ff);border:1px solid var(--line)}
.rcard .tag{font-family:'IBM Plex Mono',monospace;font-size:11px;font-weight:600;color:var(--accent);align-self:flex-start;background:rgba(255,255,255,.7);padding:4px 9px;border-radius:999px;margin-bottom:auto}
.rcard h3{font-size:17px;font-weight:600;line-height:1.25;margin-top:14px}

/* ---------- news / link list ---------- */
.news-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.news-list a{display:flex;gap:20px;align-items:baseline;padding:18px 22px;text-decoration:none;color:var(--ink);border-bottom:1px solid var(--line-soft);transition:background .15s}
.news-list a:last-child{border-bottom:0}
.news-list a:hover{background:#f8faff}
.news-list .date{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--muted);min-width:54px}
.news-list .ttl{font-size:15px;font-weight:500}
.news-list .news-row{display:flex;gap:20px;align-items:baseline;padding:18px 22px;border-bottom:1px solid var(--line-soft);color:var(--muted)}
.news-list .news-row:last-child{border-bottom:0}
.news-list .news-row .ttl{color:var(--muted);font-weight:400}

/* ---------- hub index list (compact rows) ---------- */
.row-list{border-top:1px solid var(--line)}
.row-list a{display:grid;grid-template-columns:64px 1fr auto;align-items:baseline;gap:24px;padding:24px 4px;
  border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink);transition:padding-left .2s}
.row-list a:hover{padding-left:10px;color:var(--accent)}
.row-list .idx{font-family:'IBM Plex Mono',monospace;font-size:13px;color:var(--muted)}
.row-list .rl-title{font-size:19px;font-weight:600}
.row-list .rl-sub{font-size:13.5px;color:var(--ink-2);margin-top:4px}
.row-list .rl-go{font-size:13px;color:var(--muted)}

/* ---------- prose (articles & static) ---------- */
.prose{max-width:760px;font-size:17px;line-height:1.75;color:#1f2b40}
.prose>*+*{margin-top:18px}
.prose h2{font-family:var(--display);font-size:27px;font-weight:600;letter-spacing:-.02em;margin-top:42px}
.prose h3{font-size:21px;font-weight:600;margin-top:30px}
.prose ul,.prose ol{padding-left:24px}
.prose li{margin-top:8px}
.prose a{color:var(--accent);text-decoration:underline;text-underline-offset:2px}
.prose strong{font-weight:600;color:var(--ink)}
.lead-p{font-size:19px;line-height:1.7;color:var(--ink-2)}

/* article meta header */
.art-head{max-width:820px}
.art-head h1{font-family:var(--display);font-size:clamp(30px,4.4vw,50px);font-weight:700;line-height:1.08;letter-spacing:-.025em;margin:14px 0 0}
.art-meta{display:flex;align-items:center;gap:14px;margin-top:22px;font-size:13.5px;color:var(--muted)}
.art-meta .author{display:flex;align-items:center;gap:10px;color:var(--ink-2);font-weight:500}
.art-meta .avatar{width:34px;height:34px;border-radius:999px;background:linear-gradient(135deg,#cfe0ff,#e9e2ff);display:inline-block}
.art-cover{aspect-ratio:16/8;border-radius:16px;margin:28px 0 8px;background:linear-gradient(135deg,#dbe7ff,#eef2ff 45%,#e7e0ff);overflow:hidden}
.art-cover img{width:100%;height:100%;object-fit:cover;display:block}
img.avatar{object-fit:cover}
.prose figure{margin:26px 0}
.prose figure img{width:100%;border-radius:14px;display:block}
.prose figcaption{font-size:13px;color:var(--muted);margin-top:8px}
.member .ava{overflow:hidden}
.member .ava img{width:100%;height:100%;object-fit:cover;display:block}

/* tables */
.tbl{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.tbl th{background:#1f3a5f;color:#fff;text-align:left;padding:11px 14px;font-weight:600}
.tbl td{padding:11px 14px;border-bottom:1px solid var(--line)}
.tbl tr:nth-child(even) td{background:#f8faff}

/* callout / faq */
.callout{background:#eef4ff;border-left:4px solid var(--accent);border-radius:10px;padding:18px 20px;font-size:15.5px}
.faq{border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-top:20px}
.faq details{border-bottom:1px solid var(--line-soft)}
.faq details:last-child{border-bottom:0}
.faq summary{cursor:pointer;padding:16px 20px;font-weight:600;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';float:right;color:var(--accent)}
.faq details[open] summary::after{content:'–'}
.faq .ans{padding:0 20px 16px;color:var(--ink-2);font-size:15px}

/* pros/cons */
.pc{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:22px 0}
@media(max-width:560px){.pc{grid-template-columns:1fr}}
.pc .box{border-radius:12px;padding:18px 20px;font-size:15px}
.pc .pros{background:#ecfdf3;border:1px solid #b7ebc6}
.pc .cons{background:#fef2f2;border:1px solid #f6c9c9}
.pc h4{font-size:13px;text-transform:uppercase;letter-spacing:.06em;margin-bottom:10px}
.pc .pros h4{color:#15803d}.pc .cons h4{color:#b91c1c}
.pc ul{padding-left:18px}.pc li{margin-top:6px}

/* author cards */
.team{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:28px}
@media(max-width:800px){.team{grid-template-columns:1fr}}
.member{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:24px}
.member .ava{width:64px;height:64px;border-radius:999px;background:linear-gradient(135deg,#cfe0ff,#e9e2ff);margin-bottom:14px}
.member h3{font-size:18px;font-weight:600}
.member .role{font-size:13px;color:var(--accent);font-weight:600;margin:2px 0 10px}
.member p{font-size:14px;color:var(--ink-2)}

/* contact form */
.form{max-width:560px;display:grid;gap:14px;margin-top:24px}
.form label{font-size:13px;font-weight:600;color:var(--ink-2)}
.form input,.form select,.form textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font:inherit;font-size:15px;background:#fff;color:var(--ink)}
.form textarea{min-height:130px;resize:vertical}
.form .chk{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted)}
.form .chk input{width:auto}

/* footer */
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding:48px 36px 52px}
.site-footer .ft-wrap{max-width:var(--maxw);margin:0 auto;display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap}
.site-footer p{font-size:13px;line-height:1.6;color:#64748B;margin:14px 0 0;max-width:300px}
.site-footer .soc{display:flex;gap:16px;margin-top:18px}
.site-footer .soc a{font-size:13px;font-weight:500;color:var(--accent);text-decoration:none}
.site-footer .cols{display:flex;gap:54px;flex-wrap:wrap}
.site-footer .col{display:flex;flex-direction:column;gap:11px}
.site-footer .col .h{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:4px}
.site-footer .col a{font-size:14px;color:var(--ink-2);text-decoration:none}
.site-footer .col a:hover{color:var(--accent)}
.site-footer .copy{max-width:var(--maxw);margin:34px auto 0;padding-top:22px;border-top:1px solid var(--line-soft);font-size:12px;color:var(--muted)}

/* hero (home) */
.home-hero{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:center;padding:60px 0 30px}
@media(max-width:900px){.home-hero{grid-template-columns:1fr;gap:28px}}
.home-hero h1{font-family:var(--display);font-weight:700;font-size:clamp(40px,5.4vw,68px);line-height:1.05;letter-spacing:-.025em;margin:18px 0 0}
.home-hero h1 em{font-style:normal;color:var(--accent)}
.home-hero .lead{font-size:18px;color:var(--ink-2);margin:20px 0 26px;max-width:52ch}
.home-hero .actions{display:flex;gap:14px;flex-wrap:wrap}
.btn-ghost{font-size:14px;font-weight:600;color:var(--accent);background:#fff;border:1px solid var(--line);padding:11px 20px;border-radius:8px;text-decoration:none}
.feature-card{border-radius:16px;overflow:hidden;border:1px solid var(--line);background:var(--surface)}
.feature-card .cov{aspect-ratio:16/10;background:linear-gradient(135deg,#cfe0ff,#e9e2ff);overflow:hidden}
.feature-card .cov img{width:100%;height:100%;object-fit:cover;display:block}
.feature-card .body{padding:18px 20px}
.feature-card .badge{font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--accent);font-weight:600}
.feature-card h3{font-size:18px;font-weight:600;margin-top:8px;line-height:1.3}