/* ===========================================================
   JSON Studio design system.

   The identity is violet + teal on a faintly cool paper, deliberately not the
   corporate blue every developer tool defaults to — the point is to be
   recognisable at a glance, in a light or dark room, on a projector.

   Colour lives in three slots:
     --brand   violet, for anything interactive
     --accent  teal, for confirmation and secondary emphasis
     --ink     near-black violet, for gradients and depth
   The --blue* names are kept as aliases so older rules keep working.
=========================================================== */

:root{
  /* surfaces */
  --page-bg:#f6f5fb;
  --panel:#ffffff;
  --panel-2:#f2f0fa;
  --border:#e6e3f2;
  --border-strong:#d5d0e8;

  /* type */
  --text:#16142a;
  --text-dim:#575374;
  --text-faint:#8b86a6;

  /* identity */
  --brand:#6d4aff;
  --brand-dark:#5836e8;
  --brand-tint:#efeaff;
  --accent:#00b3a4;
  --accent-tint:#e0f7f4;
  --ink:#2a1f5c;
  --amber:#ff9f1c;

  /* JSON syntax */
  --key:#b45309;
  --str:#0f766e;
  --num:#6d28d9;
  --bool:#be123c;
  --null:#8b86a6;
  --arr:#0f766e;
  --obj:#6d4aff;
  --match:#ff9f1c;

  --shadow:0 1px 2px rgba(30,20,70,0.04), 0 4px 14px rgba(30,20,70,0.07);
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:18px;

  /* aliases — every existing rule refers to these */
  --blue:var(--brand);
  --blue-dark:var(--brand-dark);
  --blue-tint:var(--brand-tint);
  --navy:var(--ink);
}
html[data-theme="dark"]{
  --page-bg:#0f0d1a; --panel:#171528; --panel-2:#1e1b33;
  --border:#2c2745; --border-strong:#3d3760;
  --text:#eceaf6; --text-dim:#a9a3c4; --text-faint:#726d92;
  --brand:#9d86ff; --brand-dark:#b5a3ff; --brand-tint:#241f3d;
  --accent:#2ee0c6; --accent-tint:#12332f; --ink:#0b0916; --amber:#ffb454;
  --key:#f0a868; --str:#2ee0c6; --num:#c4a6ff; --bool:#ff7a94; --null:#726d92; --arr:#2ee0c6; --obj:#9d86ff;
  --match:#ffb454;
  --shadow:0 1px 2px rgba(0,0,0,0.35), 0 4px 14px rgba(0,0,0,0.45);
}

*{box-sizing:border-box;}
html,body{margin:0;background:var(--page-bg);color:var(--text);font-family:'Inter',system-ui,sans-serif;}
body{-webkit-font-smoothing:antialiased;}
a{color:var(--blue);text-decoration:none;}
a:hover{text-decoration:underline;}
img{max-width:100%;display:block;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:6px;}

.container{max-width:1180px;margin:0 auto;padding:0 24px;}

button, select, input{font-family:'Inter',system-ui,sans-serif;font-size:13px;font-weight:500;color:var(--text);background:var(--panel);border:1px solid var(--border-strong);border-radius:var(--radius-sm);padding:9px 15px;cursor:pointer;transition:all .15s;}
button:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-tint);}
button.primary{background:var(--blue);color:#fff;border-color:var(--blue);font-weight:600;}
button.primary:hover{background:var(--blue-dark);border-color:var(--blue-dark);color:#fff;}
button.ghost{background:transparent;border-color:transparent;color:var(--text-dim);}
button.ghost:hover{background:var(--panel-2);color:var(--blue);border-color:transparent;}

/* ---------------- header ---------------- */
.site-header{position:sticky;top:0;z-index:50;background:var(--panel);border-bottom:1px solid var(--border);}
.site-header .bar{display:flex;align-items:center;gap:20px;height:64px;}
.brandmark{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brandmark .dot{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--blue),var(--navy));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:13px;font-family:'JetBrains Mono',monospace;}
.brandmark .word{font-weight:700;font-size:16px;letter-spacing:-0.01em;color:var(--text);}
.brandmark .word span{color:var(--blue);}
.site-nav{display:none;gap:4px;align-items:center;}
.site-nav a{font-size:13.5px;font-weight:500;color:var(--text-dim);padding:8px 12px;border-radius:var(--radius-sm);}
.site-nav a:hover{color:var(--blue);background:var(--blue-tint);text-decoration:none;}
.site-nav a.active{color:var(--blue);background:var(--blue-tint);}
@media(min-width:860px){ .site-nav{display:flex;} }
.header-spacer{flex:1;}
.header-actions{display:flex;gap:8px;align-items:center;}
.nav-toggle{display:inline-flex;}
@media(min-width:860px){ .nav-toggle{display:none;} }
#mobile-nav{display:none;flex-direction:column;gap:2px;padding:10px 24px 16px;border-top:1px solid var(--border);}
#mobile-nav.open{display:flex;}
#mobile-nav a{padding:10px 8px;font-size:14px;color:var(--text-dim);border-radius:var(--radius-sm);}
#mobile-nav a:hover{color:var(--blue);background:var(--blue-tint);text-decoration:none;}
#mobile-nav a.active{color:var(--blue);background:var(--blue-tint);}
.mobile-nav-head{font-size:11px;font-weight:700;letter-spacing:0.07em;text-transform:uppercase;color:var(--text-faint);padding:14px 8px 4px;}

/* ---------------- nav dropdown ---------------- */
.nav-dd{position:relative;}
.nav-dd-toggle{font-size:13.5px;font-weight:500;color:var(--text-dim);padding:8px 12px;border:1px solid transparent;background:transparent;border-radius:var(--radius-sm);}
.nav-dd-toggle:hover, .nav-dd.open .nav-dd-toggle, .nav-dd-toggle.active{color:var(--blue);background:var(--blue-tint);border-color:transparent;}
.nav-dd-menu{position:absolute;top:calc(100% + 6px);left:0;background:var(--panel);border:1px solid var(--border);border-radius:14px;box-shadow:0 2px 4px rgba(30,20,70,.06), 0 24px 48px -20px rgba(20,30,50,.35);padding:0;display:none;flex-direction:column;z-index:60;overflow:hidden;}
.nav-dd:hover .nav-dd-menu, .nav-dd.open .nav-dd-menu{display:flex;}
.nav-dd-menu a{font-size:13.5px;color:var(--text-dim);padding:8px 12px;border-radius:6px;white-space:nowrap;}
.nav-dd-menu a:hover{color:var(--blue);background:var(--blue-tint);text-decoration:none;}
.nav-dd-menu a.active{color:var(--blue);background:var(--blue-tint);}

/* ---------------- buttons used on marketing pages ---------------- */
.btn-primary, .btn-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 24px;font-size:14.5px;font-weight:600;border-radius:10px;text-decoration:none;border:1px solid transparent;cursor:pointer;transition:all .15s;font-family:inherit;}
.btn-primary{background:var(--blue);color:#fff;border-color:var(--blue);box-shadow:0 1px 2px rgba(109,74,255,.22), 0 8px 22px -8px rgba(109,74,255,.55);}
.btn-primary:hover{background:var(--blue-dark);border-color:var(--blue-dark);color:#fff;text-decoration:none;transform:translateY(-1px);}
.btn-secondary{background:var(--panel);color:var(--text);border-color:var(--border-strong);}
.btn-secondary:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-tint);text-decoration:none;}
kbd{font-family:'JetBrains Mono',monospace;font-size:0.85em;background:var(--panel-2);border:1px solid var(--border-strong);border-bottom-width:2px;border-radius:5px;padding:1px 5px;color:var(--text-dim);}

/* ---------------- hero ---------------- */
.hero{padding:72px 0 56px;position:relative;overflow:hidden;}
.hero::before{content:'';position:absolute;inset:-40% 0 auto -10%;height:620px;background:
  radial-gradient(48% 46% at 18% 34%, var(--blue-tint) 0%, transparent 70%),
  radial-gradient(38% 40% at 82% 12%, var(--blue-tint) 0%, transparent 72%);
  pointer-events:none;z-index:0;opacity:.9;}
.hero > *{position:relative;z-index:1;}
.hero-grid{display:grid;grid-template-columns:1fr;gap:44px;align-items:center;}
@media(min-width:980px){ .hero-grid{grid-template-columns:1.05fr .95fr;gap:56px;} }

.hero .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;color:var(--blue);background:var(--blue-tint);border:1px solid rgba(109,74,255,.18);padding:7px 14px;border-radius:999px;margin-bottom:22px;}
.dot-live{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px rgba(0,179,164,.18);}
.hero h1{font-size:clamp(32px,5vw,52px);font-weight:800;letter-spacing:-0.03em;line-height:1.06;margin:0 0 18px;}
.hero h1 span{background:linear-gradient(120deg,var(--blue),var(--navy));-webkit-background-clip:text;background-clip:text;color:transparent;}
html[data-theme="dark"] .hero h1 span{background:linear-gradient(120deg,var(--blue),#8fd0ff);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero p.lead{font-size:17px;color:var(--text-dim);max-width:560px;line-height:1.65;margin:0 0 30px;}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;}
.cta-row.center{justify-content:center;}
.trust-row{display:flex;gap:18px;flex-wrap:wrap;margin-top:24px;font-size:12.5px;color:var(--text-faint);font-weight:500;}

/* hero visual — a static mock of one tool's output */
.hero-visual{display:none;}
@media(min-width:980px){ .hero-visual{display:block;} }
.mock-window{background:var(--panel);border:1px solid var(--border);border-radius:14px;box-shadow:0 2px 4px rgba(20,30,50,.04), 0 24px 48px -24px rgba(20,30,50,.28);overflow:hidden;}
html[data-theme="dark"] .mock-window{box-shadow:0 2px 4px rgba(0,0,0,.3), 0 24px 48px -24px rgba(0,0,0,.7);}
.mock-bar{display:flex;align-items:center;gap:7px;padding:11px 14px;border-bottom:1px solid var(--border);background:var(--panel-2);}
.mock-bar span{width:10px;height:10px;border-radius:50%;background:var(--border-strong);}
.mock-bar span:first-child{background:#ff6b5b;} .mock-bar span:nth-child(2){background:#ffc44d;} .mock-bar span:nth-child(3){background:#3ed6ab;}
.mock-bar em{margin-left:auto;font-style:normal;font-size:11.5px;color:var(--text-faint);font-family:'JetBrains Mono',monospace;}
.mock-body{padding:18px;}
.mock-code{font-family:'JetBrains Mono',monospace;font-size:12px;line-height:1.7;margin:0;white-space:pre;overflow-x:auto;color:var(--text-dim);}
.mock-arrow{text-align:center;color:var(--blue);font-size:15px;margin:10px 0;opacity:.7;}
.c-k{color:var(--key);} .c-s{color:var(--str);} .c-n{color:var(--num);} .c-b{color:var(--bool);}
.c-p{color:var(--text-faint);} .c-m{color:var(--text-faint);font-style:italic;} .c-t{color:var(--arr);}

/* stat strip */
.stat-strip{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--border);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;margin-top:52px;}
@media(min-width:700px){ .stat-strip{grid-template-columns:repeat(4,1fr);} }
.stat-strip .stat{background:var(--panel);padding:22px 20px;}
.stat-strip .stat .num{font-size:26px;font-weight:800;color:var(--blue);letter-spacing:-0.02em;}
.stat-strip .stat .label{font-size:12px;color:var(--text-faint);margin-top:3px;}

/* ---------------- sections ---------------- */
.section{padding:64px 0;}
.section.band{background:var(--panel);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.container.narrow{max-width:820px;}
.section-head{margin-bottom:34px;}
.section-head .kicker, .convert-head .kicker, .hub-head .kicker{font-size:12px;font-weight:700;color:var(--blue);text-transform:uppercase;letter-spacing:0.08em;margin-bottom:10px;}
.section-head h2{font-size:clamp(22px,3vw,30px);font-weight:700;letter-spacing:-0.02em;margin:0 0 8px;}
.section-head p{color:var(--text-dim);font-size:15px;line-height:1.65;margin:0;max-width:640px;}
.muted{color:var(--text-dim);font-size:15px;line-height:1.65;}
.fineprint{font-size:12.5px;color:var(--text-faint);margin:14px 0 0;}
.fineprint.flash{color:var(--blue);}

.group-head{margin:38px 0 18px;display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;}
.group-head:first-of-type{margin-top:0;}
.group-head h2, .group-head h3{font-size:17px;font-weight:700;margin:0;letter-spacing:-0.01em;}
.group-head p{margin:0;font-size:13.5px;color:var(--text-faint);}

/* ---------------- cards / grid ---------------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:18px;}
@media(min-width:700px){ .card-grid{grid-template-columns:repeat(2,1fr);} }
@media(min-width:1020px){ .card-grid{grid-template-columns:repeat(3,1fr);} }

.tool-card{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:22px;display:flex;flex-direction:column;gap:12px;box-shadow:var(--shadow);transition:transform .16s, border-color .16s, box-shadow .16s;text-decoration:none;color:inherit;}
.tool-card:hover{transform:translateY(-3px);border-color:var(--blue);box-shadow:0 2px 4px rgba(30,20,70,.06), 0 18px 32px -18px rgba(109,74,255,.45);text-decoration:none;}
.tool-card[hidden]{display:none;}
.tool-card .icon{width:40px;height:40px;border-radius:11px;background:var(--blue-tint);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:16px;font-family:'JetBrains Mono',monospace;font-weight:700;}
.tool-card h3{font-size:16px;font-weight:600;margin:0;letter-spacing:-0.01em;}
.tool-card p{font-size:13.5px;color:var(--text-dim);line-height:1.6;margin:0;flex:1;}
.tool-card .badge{align-self:flex-start;font-size:11px;font-weight:600;padding:4px 10px;border-radius:999px;background:var(--panel-2);color:var(--text-faint);}
.tool-card .badge.live{background:var(--accent-tint);color:var(--accent);}

.tool-card .link-row{display:flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--blue);}

/* ---------------- feature grid ---------------- */
.feature-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media(min-width:640px){ .feature-grid{grid-template-columns:repeat(2,1fr);} }
@media(min-width:1020px){ .feature-grid{grid-template-columns:repeat(3,1fr);} }
.feature{padding:22px;border:1px solid var(--border);border-radius:14px;background:var(--panel);}
.feature .f-icon{font-size:20px;margin-bottom:10px;}
.feature h4{margin:0 0 6px;font-size:15px;font-weight:650;}
.feature p{margin:0;font-size:13.5px;color:var(--text-dim);line-height:1.6;}

/* ---------------- install band ---------------- */
.split{display:grid;grid-template-columns:1fr;gap:36px;align-items:center;}
@media(min-width:900px){ .split{grid-template-columns:1.05fr .95fr;gap:56px;} }
.split h2{font-size:clamp(22px,3vw,30px);font-weight:700;letter-spacing:-0.02em;margin:0 0 10px;}
.split .cta-row{margin-top:24px;}
.check-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px;}
.check-list li{position:relative;padding-left:30px;font-size:14px;color:var(--text-dim);line-height:1.6;}
.check-list li::before{content:'✓';position:absolute;left:0;top:0;width:20px;height:20px;border-radius:50%;background:var(--blue-tint);color:var(--blue);font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;}
.check-list strong{color:var(--text);font-weight:600;}

/* ---------------- FAQ ---------------- */
.faq{display:flex;flex-direction:column;gap:10px;}
.faq details{border:1px solid var(--border);border-radius:12px;background:var(--page-bg);overflow:hidden;}
.faq details[open]{border-color:var(--border-strong);}
.faq summary{cursor:pointer;padding:16px 20px;font-size:14.5px;font-weight:600;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:'+';font-size:18px;color:var(--text-faint);font-weight:400;flex-shrink:0;}
.faq details[open] summary::after{content:'−';}
.faq summary:hover{color:var(--blue);}
.faq-body{padding:0 20px 18px;}
.faq-body p{margin:0;font-size:14px;color:var(--text-dim);line-height:1.7;}

/* ---------------- closing CTA ---------------- */
.cta-band{background:linear-gradient(135deg,var(--blue),var(--navy));color:#fff;padding:64px 0;text-align:center;}
.cta-band h2{font-size:clamp(24px,3.4vw,34px);font-weight:800;letter-spacing:-0.02em;margin:0 0 10px;}
.cta-band p{margin:0 0 26px;font-size:15.5px;opacity:.85;}
.cta-band .btn-primary{background:#fff;color:var(--navy);border-color:#fff;box-shadow:0 10px 30px -12px rgba(0,0,0,.5);}
.cta-band .btn-primary:hover{background:#f2f6fb;color:var(--navy);border-color:#f2f6fb;}
.btn-secondary.ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn-secondary.ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}

/* ---------------- all-tools hub ---------------- */
.hub-head{padding:52px 0 28px;border-bottom:1px solid var(--border);background:var(--panel);}
.hub-head h1{font-size:clamp(26px,4vw,38px);font-weight:800;letter-spacing:-0.03em;margin:0 0 12px;}
.hub-head p.lead{font-size:15.5px;color:var(--text-dim);max-width:640px;line-height:1.65;margin:0 0 24px;}
.hub-search{display:flex;align-items:center;gap:14px;max-width:640px;}
.hub-search input{flex:1;padding:14px 18px;font-size:15px;border-radius:12px;background:var(--page-bg);border:1px solid var(--border-strong);}
.hub-search input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px var(--blue-tint);}
#tool-count{font-size:12.5px;color:var(--text-faint);white-space:nowrap;}
.hub-filters{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px;}
.chip{font-size:13px;font-weight:500;padding:8px 15px;border-radius:999px;border:1px solid var(--border-strong);background:var(--page-bg);color:var(--text-dim);cursor:pointer;transition:all .15s;}
.chip:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-tint);}
.chip.on{background:var(--blue);border-color:var(--blue);color:#fff;}
.chip.on:hover{background:var(--blue-dark);color:#fff;}
.hub-body{padding-top:36px;}
.hub-body [hidden]{display:none;}
.no-results{text-align:center;color:var(--text-faint);font-size:14.5px;padding:40px 0;}
.linkish{background:none;border:none;padding:0;color:var(--blue);font-size:inherit;font-weight:600;cursor:pointer;text-decoration:underline;}

/* ---------------- command palette ---------------- */
.kbd-hint{display:none;align-items:center;gap:6px;font-size:12.5px;color:var(--text-faint);background:var(--panel-2);border:1px solid var(--border);border-radius:8px;padding:7px 11px;cursor:pointer;}
.kbd-hint:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-tint);}
.kbd-hint kbd{font-size:10.5px;padding:0 4px;border-bottom-width:1px;}
@media(min-width:1080px){ .kbd-hint{display:inline-flex;} }

body.palette-open{overflow:hidden;}
#palette{position:fixed;inset:0;z-index:200;display:flex;align-items:flex-start;justify-content:center;padding:12vh 20px 20px;}
#palette[hidden]{display:none;}
.palette-backdrop{position:absolute;inset:0;background:rgba(16,22,34,.45);backdrop-filter:blur(3px);}
.palette-box{position:relative;width:100%;max-width:540px;background:var(--panel);border:1px solid var(--border-strong);border-radius:16px;box-shadow:0 30px 70px -20px rgba(10,18,32,.55);overflow:hidden;display:flex;flex-direction:column;max-height:70vh;}
#palette-input{border:none;border-bottom:1px solid var(--border);border-radius:0;padding:18px 20px;font-size:15.5px;background:transparent;}
#palette-input:focus{outline:none;}
.palette-list{overflow-y:auto;padding:8px;}
.palette-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 14px;border-radius:9px;color:var(--text);font-size:14px;text-decoration:none;}
.palette-row:hover, .palette-row.on{background:var(--blue-tint);color:var(--blue);text-decoration:none;}
.pr-group{font-size:11.5px;color:var(--text-faint);white-space:nowrap;}
.palette-row.on .pr-group{color:var(--blue);opacity:.75;}
.palette-empty{padding:26px;text-align:center;color:var(--text-faint);font-size:14px;}
.palette-foot{display:flex;gap:16px;padding:10px 18px;border-top:1px solid var(--border);background:var(--panel-2);font-size:11.5px;color:var(--text-faint);}

/* ---------------- nav mega-menu ---------------- */
.dd-cols{display:flex;gap:6px;padding:6px;}
.dd-col{display:flex;flex-direction:column;gap:1px;min-width:172px;}
.dd-head{font-size:10.5px;font-weight:700;letter-spacing:0.07em;text-transform:uppercase;color:var(--text-faint);padding:8px 12px 5px;}
.dd-all{display:block;padding:11px 18px;border-top:1px solid var(--border);font-size:13px;font-weight:600;color:var(--blue);background:var(--panel-2);}
.dd-all:hover{background:var(--blue-tint);text-decoration:none;}

/* ---------------- footer ---------------- */
.site-footer{border-top:1px solid var(--border);background:var(--panel);margin-top:40px;}
.footer-top{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:30px;padding:48px 0 34px;}
@media(max-width:1180px){ .footer-top{grid-template-columns:1fr 1fr 1fr;} }
@media(max-width:820px){ .footer-top{grid-template-columns:1fr 1fr;} }
@media(max-width:760px){ .footer-top{grid-template-columns:1fr;} }
.footer-top .about .brandmark{margin-bottom:12px;}
.footer-top .about p{font-size:13.5px;color:var(--text-dim);line-height:1.6;max-width:340px;margin:0 0 14px;}
.footer-top .about .socials{display:flex;gap:10px;}
.footer-top .about .socials a{font-size:12.5px;color:var(--text-dim);border:1px solid var(--border);border-radius:var(--radius-sm);padding:6px 10px;}
.footer-top .about .socials a:hover{color:var(--blue);border-color:var(--blue);text-decoration:none;}
.footer-col h4{font-size:12px;text-transform:uppercase;letter-spacing:0.06em;color:var(--text-faint);margin:0 0 14px;font-weight:600;}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:13.5px;color:var(--text-dim);}
.footer-col a:hover{color:var(--blue);}
.footer-bottom{border-top:1px solid var(--border);padding:18px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;font-size:12.5px;color:var(--text-faint);}

/* ---------------- tool page content (below the app shell) ---------------- */
.tool-seo{border-top:1px solid var(--border);background:var(--page-bg);padding:56px 0 64px;}
.seo-grid{display:grid;grid-template-columns:1fr;gap:36px;}
@media(min-width:940px){ .seo-grid{grid-template-columns:minmax(0,1.6fr) minmax(0,.9fr);gap:52px;} }
.seo-main h2{font-size:23px;font-weight:700;letter-spacing:-0.02em;margin:0 0 12px;}
.seo-main h3{font-size:15px;font-weight:650;margin:30px 0 12px;letter-spacing:-0.01em;}
.seo-main p{font-size:14.5px;line-height:1.75;color:var(--text-dim);margin:0;}
.seo-steps{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:9px;}
.seo-steps li{font-size:14px;line-height:1.65;color:var(--text-dim);padding-left:4px;}
.seo-steps li::marker{color:var(--brand);font-weight:700;}
.seo-main .faq details{background:var(--panel);}

.seo-side{display:flex;flex-direction:column;gap:16px;}
.seo-card{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:20px;}
.seo-card.quiet{background:transparent;border-style:dashed;}
.seo-card h3{margin:0 0 8px;font-size:14px;font-weight:650;}
.seo-card p{margin:0 0 12px;font-size:13.5px;line-height:1.65;color:var(--text-dim);}
.seo-link{font-size:13.5px;font-weight:600;color:var(--brand);}
.seo-related{list-style:none;margin:0 0 14px;padding:0;display:flex;flex-direction:column;gap:2px;}
.seo-related a{display:flex;align-items:center;gap:10px;padding:8px 10px;margin:0 -10px;border-radius:9px;font-size:13.5px;color:var(--text-dim);}
.seo-related a:hover{background:var(--brand-tint);color:var(--brand);text-decoration:none;}
.seo-related .ri{width:26px;height:26px;border-radius:7px;background:var(--brand-tint);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-family:'JetBrains Mono',monospace;font-size:10.5px;font-weight:700;flex-shrink:0;}

/* presentation feature page */
.feature-hero{padding:68px 0 44px;position:relative;overflow:hidden;}
.feature-hero::before{content:'';position:absolute;inset:-45% -10% auto -15%;height:640px;pointer-events:none;
  background:radial-gradient(42% 46% at 24% 38%, var(--brand-tint) 0%, transparent 70%),
             radial-gradient(36% 42% at 80% 14%, var(--accent-tint) 0%, transparent 72%);}
.feature-hero > *{position:relative;z-index:1;}
.feature-hero h1{font-size:clamp(30px,4.6vw,46px);font-weight:800;letter-spacing:-0.03em;line-height:1.08;margin:0 0 16px;max-width:18ch;}
.feature-hero h1 span{background:linear-gradient(110deg,var(--brand),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent;}
.feature-hero p.lead{font-size:17px;line-height:1.65;color:var(--text-dim);max-width:62ch;margin:0 0 28px;}
.step-list{display:grid;grid-template-columns:1fr;gap:20px;counter-reset:step;}
@media(min-width:820px){ .step-list{grid-template-columns:repeat(3,1fr);} }
.step{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:22px;}
.step .n{width:28px;height:28px;border-radius:8px;background:var(--brand);color:#fff;display:flex;align-items:center;
  justify-content:center;font-size:13px;font-weight:700;margin-bottom:12px;}
.step h3{margin:0 0 6px;font-size:15.5px;font-weight:650;}
.step p{margin:0;font-size:13.5px;line-height:1.65;color:var(--text-dim);}
.key-table{width:100%;border-collapse:collapse;font-size:14px;}
.key-table td{padding:11px 14px;border-bottom:1px solid var(--border);color:var(--text-dim);vertical-align:top;}
.key-table tr:last-child td{border-bottom:none;}
.key-table td:first-child{width:150px;white-space:nowrap;}
.key-table strong{color:var(--text);font-weight:600;}

/* presentation preview on the home page */
.present-preview{position:relative;}
.pp-screen{position:relative;height:210px;border-radius:14px 14px 0 0;border:1px solid var(--border);border-bottom:none;
  background:radial-gradient(circle at 1px 1px, var(--border) 1px, transparent 0) 0 0/22px 22px, var(--panel);overflow:hidden;}
.pp-wires{position:absolute;inset:20px;width:calc(100% - 40px);height:calc(100% - 40px);fill:none;stroke:var(--border-strong);stroke-width:1.5;}
.pp-node{position:absolute;font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:700;padding:7px 11px;border-radius:8px;
  background:var(--panel);border:1px solid var(--border-strong);color:var(--text-dim);box-shadow:var(--shadow);z-index:1;}
.pp-root{left:22px;top:50%;transform:translateY(-50%);color:var(--brand);border-color:var(--brand);}
.pp-a{left:58%;top:24px;color:var(--key);}
.pp-b{left:58%;top:50%;transform:translateY(-50%);color:var(--arr);}
.pp-c{left:58%;bottom:24px;color:var(--num);}
.pp-bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:11px 14px;border:1px solid var(--border-strong);border-radius:0 0 14px 14px;
  background:var(--panel);box-shadow:var(--shadow);font-size:11.5px;color:var(--text-faint);}
.pp-bar i{width:1px;height:16px;background:var(--border);display:inline-block;}
.pp-bar .on{background:var(--brand);color:#fff;padding:4px 10px;border-radius:999px;font-weight:600;}
.pp-bar .laser{color:#ff453a;font-weight:600;}