/* Kastrava Pro — restrained professional design system. Loaded after each
   page's legacy <style> so these rules win ties; page markup is untouched. */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Space+Grotesk:wght@500;600;700&family=JetBrains+Mono:wght@400;500&family=Noto+Sans+JP:wght@400;500;700&family=Noto+Sans+KR:wght@400;500;700&family=Noto+Sans+SC:wght@400;500;700&display=swap');

:root{
  --bg:#0b0e14; --bg2:#0e1219; --card:#121722; --card2:#171d2a;
  --ink:#f2f4f8; --text:#c3c9d4; --muted:#8b93a5; --muted2:#626b7e;
  --line:#1f2633; --line2:#2c3547;
  --pill:#f2f4f8; --pill-fg:#0b0e14;
  --vio:#2e6bf0; --cy:#2e6bf0; --gold:#b98a1d; --blue:#4d86f5;
  --grad:#2e6bf0;
  --glow:none;
  --r:14px; --mono:'JetBrains Mono',ui-monospace,'Noto Sans JP','Noto Sans KR','Noto Sans SC','Malgun Gothic','Microsoft YaHei',monospace;
  --navbg:rgba(11,14,20,.85);
  color-scheme:dark;
}
html[data-theme="light"]{
  --bg:#f7f8fa; --bg2:#f1f3f6; --card:#ffffff; --card2:#f4f6f9;
  --ink:#131722; --text:#3d4452; --muted:#697182; --muted2:#9aa1b0;
  --line:#e4e7ec; --line2:#d3d8e1;
  --pill:#131722; --pill-fg:#f7f8fa;
  --vio:#1f4fd6; --cy:#1f4fd6; --blue:#1f4fd6;
  --grad:#1f4fd6;
  --navbg:rgba(247,248,250,.88);
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,-apple-system,'Segoe UI','Noto Sans JP','Noto Sans KR','Noto Sans SC','Hiragino Sans','Yu Gothic UI','Meiryo','Malgun Gothic','PingFang SC','Microsoft YaHei',sans-serif !important;
  background:var(--bg) !important;
  color:var(--text) !important;
  line-height:1.65; overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,.sec-title,header h1{font-family:'Space Grotesk','Noto Sans JP','Noto Sans KR','Noto Sans SC','Hiragino Sans','Yu Gothic UI','Meiryo','Malgun Gothic','PingFang SC','Microsoft YaHei',sans-serif !important;color:var(--ink) !important;letter-spacing:-.015em}
.wrap,.container{max-width:1080px !important;margin:0 auto;padding:0 28px;position:relative;z-index:1}

/* ---- nav ---- */
nav{position:sticky;top:0;z-index:50;background:var(--navbg) !important;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line) !important}
nav .wrap,nav .container{display:flex !important;align-items:center;gap:12px;padding-top:12px !important;padding-bottom:12px !important}
nav img{width:32px;height:32px;border-radius:8px}
nav .name{font-family:'Space Grotesk';font-size:14px;font-weight:700;letter-spacing:2.5px;color:var(--ink) !important;text-decoration:none}
nav .beta{font-family:var(--mono);font-size:10px;color:var(--muted);border:1px solid var(--line2);border-radius:6px;padding:2px 7px}
nav .links{display:flex;align-items:center;gap:22px;margin-left:auto}
nav .links a{color:var(--muted) !important;text-decoration:none;font-size:13.5px;font-weight:500}
nav .links a:hover{color:var(--ink) !important}
nav .dl,nav a.btn{background:var(--ink) !important;color:var(--bg) !important;font-weight:600 !important;padding:9px 20px !important;border-radius:9px !important;text-decoration:none;font-size:13px}
.theme-btn{display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:8px;border:1px solid var(--line2) !important;background:transparent !important;color:var(--ink) !important;cursor:pointer}

/* ---- hero ---- */
header{padding:72px 0 36px !important;text-align:left}
.kicker{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11px;color:var(--muted);border:1px solid var(--line2);background:var(--card);padding:6px 13px;border-radius:999px;letter-spacing:.4px;margin-bottom:20px}
header h1{font-size:clamp(38px,5.5vw,64px) !important;font-weight:700 !important;line-height:1.06 !important;margin-bottom:16px !important}
header h1 em,.grad-text{color:var(--blue);font-style:normal}
.lede{font-size:16px;max-width:620px;margin-bottom:26px;color:var(--text)}
.lede b{color:var(--ink)}
.cta-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:'Inter';font-weight:600;font-size:14px;padding:13px 26px;border-radius:10px;text-decoration:none;cursor:pointer;border:none}
.btn-primary,.prem-buy,.go,#bm-acct-go,#bm-buy{background:var(--vio) !important;color:#fff !important}
.btn-ghost{background:transparent !important;color:var(--ink) !important;border:1px solid var(--line2) !important}
.hero-meta{font-size:12px;color:var(--muted2) !important;margin-bottom:28px}
.spec{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;max-width:860px}
.spec .row{background:var(--card);padding:15px 17px;display:flex;flex-direction:column;gap:2px}
.spec .k{font-size:11.5px;color:var(--muted)}.spec .v{font-size:13.5px;font-weight:600;color:var(--ink)}
.hero-center{text-align:center !important;padding:88px 0 48px !important}
.hero-center .wrap{display:flex;flex-direction:column;align-items:center}
.hero-center .lede{margin-left:auto;margin-right:auto;text-align:center}
.hero-center .cta-row{justify-content:center}
.hero-center .spec{margin:24px auto 0;text-align:left;width:100%}
.hero-center .hero-meta{text-align:center}

/* ---- sections ---- */
section{padding:48px 0}
.sec-title{font-size:clamp(26px,3.8vw,38px) !important;font-weight:700 !important;margin-bottom:8px !important}
.sec-sub{font-size:15px;color:var(--muted);max-width:660px;margin-bottom:26px}
.sec-sub b,.sec-sub a{color:var(--ink)}
.feat{display:flex;gap:16px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px;margin-bottom:10px}
.feat .n{font-family:var(--mono);font-size:11.5px;color:var(--blue);height:fit-content;white-space:nowrap}
.feat h3{font-size:16px;margin-bottom:3px}
.feat p{font-size:13.5px;margin:0}

/* ---- premium / cards ---- */
.prem-card,.lic-card,.card,.band,.check{background:var(--card) !important;border:1px solid var(--line) !important;border-radius:18px !important;padding:32px !important;position:relative}
.prem-card .tag,.tag{display:inline-block;font-family:var(--mono);font-size:10px;letter-spacing:1.5px;color:var(--blue);border:1px solid var(--line2);background:var(--card2);padding:5px 11px;border-radius:7px;margin-bottom:12px}
.prem-card h3{font-size:23px;margin-bottom:6px}
.prem-card .sub,.beta-free{font-size:13.5px;color:var(--muted);margin-bottom:6px}
.prem-price{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin:14px 0 6px}
.prem-price .rup{font-family:'Space Grotesk';font-size:34px;font-weight:700;color:var(--ink)}
.prem-price .usd{font-size:13px;color:var(--muted)}
.prem-feats{list-style:none;margin:16px 0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:8px 22px}
.prem-feats li{font-size:13.5px;color:var(--text);padding-left:20px;position:relative}
.prem-feats li::before{content:"✓";position:absolute;left:0;color:var(--blue);font-weight:700}
.prem-feats b{color:var(--ink)}
.plan-card{transition:border-color .15s,background .15s !important;background:var(--card2) !important}
.plan-card:hover{border-color:var(--blue) !important}
.os-note,.fine{font-size:12.5px;color:var(--muted2) !important}
.prem-keyout{background:var(--card2) !important;border:1px dashed var(--line2) !important;border-radius:12px !important;padding:20px !important;margin-top:16px}
.prem-keyout .k{font-family:var(--mono);font-size:15px;color:var(--blue);word-break:break-all;margin:8px 0}

/* ---- steps / download / faq ---- */
.prem-steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin-top:24px}
.prem-step,.os{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.prem-step .t{font-family:var(--mono);font-size:10px;letter-spacing:1.5px;color:var(--blue);margin-bottom:8px}
.prem-step h4{font-size:15.5px;margin-bottom:6px;color:var(--ink)}
.prem-step p,.os p{font-size:13.5px;margin:0}
.os h3{font-size:18px;margin-bottom:2px}.os .plat{font-family:var(--mono);font-size:11.5px;color:var(--muted);margin-bottom:14px}
.dl-link{display:flex;justify-content:space-between;align-items:center;background:var(--card2);border:1px solid var(--line);border-radius:10px;padding:11px 15px;margin-bottom:8px;color:var(--ink) !important;text-decoration:none;font-size:13.5px;font-weight:500}
.dl-link:hover{border-color:var(--blue)}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:12px;margin-bottom:8px;padding:16px 20px}
.faq summary{cursor:pointer;font-weight:600;color:var(--ink);font-size:14.5px}
.faq summary::marker{color:var(--blue)}
.faq p{font-size:13.5px;margin:8px 0 2px}

/* ---- forms ---- */
input,textarea,select{font-family:inherit}
input[type="email"],input[type="password"],input[type="text"],input:not([type]),textarea{background:var(--card2) !important;border:1px solid var(--line2) !important;color:var(--ink) !important}
input:focus,textarea:focus{outline:none;border-color:var(--blue) !important}
.msg{font-size:13px;color:var(--muted);margin-top:10px;min-height:18px}
.msg.err{color:#e5484d}
a{color:var(--blue)}
.sub a,.lic-card a,.fine a{color:var(--blue) !important;text-decoration:none}

/* ---- admin tables / pills / misc ---- */
.adm-table{width:100%;border-collapse:collapse;font-size:13px}
.adm-table th{font-family:var(--mono);font-size:10.5px;letter-spacing:1px;color:var(--muted);text-align:left;padding:10px;border-bottom:1px solid var(--line2)}
.adm-table td{padding:10px;border-bottom:1px solid var(--line);color:var(--text)}
.mono{font-family:var(--mono) !important}
.pill{font-family:var(--mono);font-size:11px;color:var(--muted)}
.atab{border:1px solid var(--line) !important;background:transparent !important;color:var(--muted) !important}
.atab.on{background:var(--vio) !important;color:#fff !important;border-color:transparent !important}

/* ---- store ---- */
.store-card{transition:border-color .15s !important;overflow:hidden}
.store-card:hover{border-color:var(--line2) !important}
.store-card h2{font-size:16px !important}
#item-modal .lic-card{box-shadow:0 24px 70px rgba(0,0,0,.45)}

/* ---- paypal buttons: keep them card-sized, never full-bleed ---- */
#pp-buttons,#bm-pp,#pp-buy-box{max-width:380px}
#pp-buttons iframe,#bm-pp iframe,#pp-buy-box iframe{border-radius:10px !important}
/* ---- footer ---- */
footer{border-top:1px solid var(--line);margin-top:64px;padding:40px 0 50px;background:transparent}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:28px}
.foot-grid .fh{font-family:'Space Grotesk';font-size:11.5px;font-weight:700;letter-spacing:2px;color:var(--ink)}
footer p{font-size:12.5px;color:var(--muted2)}
footer a{color:var(--muted) !important;text-decoration:none}
footer a:hover{color:var(--ink) !important}
#authors-corner{position:fixed;bottom:10px;right:14px;font-family:var(--mono);font-size:10.5px;color:var(--muted2);text-decoration:none;opacity:.7}

@media(max-width:760px){
  .prem-feats{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  header{padding:56px 0 28px !important}
  .prem-card,.lic-card{padding:22px 18px !important}
}