/* Khmer Corpora — marketing / account site theme.
   System fonts only (no external font requests) so the site keeps working
   even with the network switched off, matching the original toolkit. */
:root{
  --bg:#faf8f4; --panel:#ffffff; --panel2:#f4f1ea; --line:#e4ddd0;
  --ink:#20241f; --mut:#6b6558; --acc:#0f5c4c; --acc-ink:#ffffff;
  --gold:#b7862f; --warn:#a3591c; --bad:#a3312b; --ok:#1f6b45;
  --radius:12px;
  --serif: Georgia, "Noto Serif Khmer", "Khmer OS", serif;
  --sans: -apple-system, "Segoe UI", Roboto, "Noto Sans Khmer", "Khmer OS", Arial, sans-serif;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#14120d; --panel:#1c1a14; --panel2:#26231b; --line:#3a3527;
    --ink:#f1ede2; --mut:#a89f8b; --acc:#3fae8f; --acc-ink:#08211a;
    --gold:#d9a94a; --warn:#e0a15c; --bad:#e08585; --ok:#6fcf9c;
  }
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--ink);font:16px/1.6 var(--sans)}
.khmer{font-family:"Noto Sans Khmer","Khmer OS System","Khmer OS",sans-serif}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.25;margin:0 0 .4em}
a{color:var(--acc)}
.wrap{max-width:1100px;margin:0 auto;padding:0 24px}
.muted{color:var(--mut)}

/* header */
.site-header{border-bottom:1px solid var(--line);background:var(--panel);position:sticky;top:0;z-index:20}
.site-header .wrap{display:flex;align-items:center;gap:28px;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:700;font-family:var(--serif);font-size:18px}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:8px;
  background:var(--acc);color:var(--acc-ink);font-family:"Noto Sans Khmer","Khmer OS",sans-serif;font-weight:700}
.site-nav{margin-left:auto;display:flex;align-items:center;gap:6px}
.nav-link{padding:8px 12px;border-radius:8px;text-decoration:none;color:var(--ink);font-size:14.5px}
.nav-link:hover{background:var(--panel2)}
.dropdown{position:relative}
.nav-btn{background:none;border:none;color:var(--ink);font:inherit;font-size:14.5px;padding:8px 12px;
  border-radius:8px;cursor:pointer;display:flex;align-items:center;gap:6px}
.nav-btn:hover{background:var(--panel2)}
.chev{width:9px;height:9px;fill:none;stroke:currentColor;stroke-width:1.6}
.dropdown-menu{position:absolute;top:calc(100% + 4px);left:0;min-width:220px;background:var(--panel);
  border:1px solid var(--line);border-radius:10px;box-shadow:0 12px 30px rgba(0,0,0,.12);padding:6px;
  display:none;flex-direction:column}
.dropdown:hover .dropdown-menu, .dropdown:focus-within .dropdown-menu{display:flex}
.dropdown-menu a{padding:9px 12px;border-radius:7px;color:var(--ink);text-decoration:none;font-size:14px}
.dropdown-menu a:hover{background:var(--panel2)}
.btn{display:inline-block;background:var(--acc);color:var(--acc-ink);border:1px solid var(--acc);
  border-radius:8px;padding:11px 18px;font-weight:600;text-decoration:none;cursor:pointer;font:inherit}
.btn:hover{filter:brightness(1.08)}
.btn-sm{padding:8px 14px;font-size:14px}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-gold{background:var(--gold);border-color:var(--gold);color:#241a05}
.pill{display:inline-block;border:1px solid var(--line);background:var(--panel2);border-radius:20px;
  padding:3px 11px;font-size:12.5px;color:var(--mut);font-weight:600}
.pill-basic{color:var(--acc);border-color:var(--acc)}
.pill-researcher{color:var(--gold);border-color:var(--gold)}
.pill-pro{color:#fff;background:var(--acc);border-color:var(--acc)}

/* flash */
.flash-wrap{max-width:1100px;margin:14px auto 0;padding:0 24px}
.flash{padding:11px 16px;border-radius:9px;margin-bottom:10px;font-size:14.5px}
.flash-ok{background:rgba(31,107,69,.12);color:var(--ok);border:1px solid rgba(31,107,69,.3)}
.flash-err{background:rgba(163,49,43,.1);color:var(--bad);border:1px solid rgba(163,49,43,.3)}

/* hero / landing */
.hero{padding:76px 0 56px;border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,var(--panel2),var(--bg))}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero h1{font-size:40px;letter-spacing:-.01em}
.hero .khmer-h{display:block;font-size:22px;color:var(--gold);margin-bottom:6px;font-weight:600}
.hero p.lead{font-size:17.5px;color:var(--mut);max-width:52ch}
.hero .cta-row{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.hero-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px;
  box-shadow:0 20px 50px rgba(20,30,25,.08)}
.hero-card h3{font-size:14px;text-transform:uppercase;letter-spacing:.06em;color:var(--mut);margin-bottom:14px}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.stat{background:var(--panel2);border-radius:10px;padding:14px}
.stat .v{font-size:24px;font-weight:700;font-family:var(--serif)}
.stat .k{font-size:12px;color:var(--mut);text-transform:uppercase;letter-spacing:.04em;margin-top:2px}

.section{padding:64px 0}
.section h2{font-size:28px;text-align:center;margin-bottom:10px}
.section .sub{text-align:center;color:var(--mut);max-width:60ch;margin:0 auto 40px}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:20px}
.feature{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px}
.feature h4{margin:0 0 8px;font-size:16px;font-family:var(--sans);font-weight:700}
.feature p{margin:0;color:var(--mut);font-size:14.5px}

/* pricing */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
@media (max-width:860px){.plans{grid-template-columns:1fr}}
.plan{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:28px;
  display:flex;flex-direction:column}
.plan.featured{border-color:var(--gold);box-shadow:0 18px 40px rgba(183,134,47,.18);position:relative}
.plan.featured::before{content:"Most popular";position:absolute;top:-12px;left:24px;background:var(--gold);
  color:#241a05;font-size:11.5px;font-weight:700;padding:4px 10px;border-radius:20px}
.plan .name{font-family:var(--serif);font-size:20px;margin-bottom:2px}
.plan .tagline{color:var(--mut);font-size:14px;margin-bottom:16px}
.plan .price{font-size:38px;font-weight:700;font-family:var(--serif)}
.plan .price small{font-size:14px;color:var(--mut);font-weight:400}
.plan ul{list-style:none;margin:20px 0;padding:0;flex:1}
.plan li{padding:8px 0;border-top:1px solid var(--line);font-size:14.5px;display:flex;gap:8px}
.plan li:first-child{border-top:none}
.plan li::before{content:"✓";color:var(--acc);font-weight:700}

/* forms */
.form-card{max-width:420px;margin:56px auto;background:var(--panel);border:1px solid var(--line);
  border-radius:16px;padding:32px}
.form-card h2{margin-bottom:6px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--mut);margin-bottom:6px;font-weight:600}
.field input, .field select, .field textarea{width:100%;font:inherit;padding:10px 12px;border:1px solid var(--line);
  border-radius:8px;background:var(--panel2);color:var(--ink)}
.form-note{font-size:13px;color:var(--mut);margin-top:14px}

/* checkout */
.checkout-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;max-width:900px;margin:0 auto}
@media (max-width:760px){.checkout-grid{grid-template-columns:1fr}}
.pay-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px}
.pay-card h3{font-size:16px;font-family:var(--sans)}
.kv{display:flex;justify-content:space-between;padding:8px 0;border-top:1px solid var(--line);font-size:14.5px}
.kv:first-child{border-top:none}
code.acct{font-size:17px;letter-spacing:.03em;background:var(--panel2);padding:6px 10px;border-radius:7px;display:inline-block}

/* tables (admin/account) */
table.simple{width:100%;border-collapse:collapse;font-size:14.5px}
table.simple th, table.simple td{padding:9px 10px;border-bottom:1px solid var(--line);text-align:left}
table.simple th{color:var(--mut);font-weight:600;font-size:12.5px;text-transform:uppercase;letter-spacing:.03em}
.badge{padding:2px 9px;border-radius:20px;font-size:12px;font-weight:600}
.badge-pending{background:rgba(163,89,28,.15);color:var(--warn)}
.badge-confirmed{background:rgba(31,107,69,.15);color:var(--ok)}
.badge-rejected{background:rgba(163,49,43,.15);color:var(--bad)}

.site-footer{border-top:1px solid var(--line);padding:26px 0;margin-top:40px;font-size:13.5px;color:var(--mut)}
.site-footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

/* ---- corpora page ------------------------------------------------------- */
.corpus-list { margin-top: 18px; }
.corpus-row { display:flex; justify-content:space-between; align-items:center; gap:16px;
  padding:14px 16px; border:1px solid var(--line); border-radius:10px;
  background:var(--panel); margin-bottom:10px; }
.corpus-row .c-name { font-weight:600; display:flex; align-items:center; gap:8px; flex-wrap:wrap; }
.corpus-row .c-meta { color:var(--muted); font-size:13px; margin-top:4px; }
.corpus-row .c-actions { display:flex; gap:8px; flex-shrink:0; }
.corpus-row .err-note { color:#e07a7a; }
.mk-card { border:1px solid var(--line); border-radius:10px; background:var(--panel);
  padding:18px 20px; margin-top:16px; }
.mk-card h4 { margin:0 0 10px; font-size:16px; display:flex; align-items:center; gap:8px; }
.mk-card textarea { width:100%; font-family:inherit; font-size:14px; padding:10px;
  border:1px solid var(--line); border-radius:8px; background:var(--panel2); color:inherit; }
.btn.danger { color:#e07a7a; border-color:#5a3535; }
.badge-processing { background:#4a3f1e; color:#e8d48b; }
.badge-ready { background:#1e4a32; color:#8be8b0; }
.badge-error { background:#4a1e1e; color:#e88b8b; }