/* ============================================================
   VisualProof — cool neutrals + a single restrained violet accent.
   Note: .serif is kept for markup compatibility, now loads
   Lexend Exa (a display sans, not a serif).
   ============================================================ */
:root{
  --paper:#FFFFFF;--paper-2:#F5F5F7;--ink:#171A1F;--sub:#5E6673;
  --line:#E4E7EC;--accent:#7C3799;--accent-hover:#682B82;--accent-soft:#EBDCF3;--stamp:#2B7A4B;
  --shadow:0 20px 50px -28px rgba(23,26,31,.22);
}
*{box-sizing:border-box;margin:0;padding:0}
body{
  font-family:'Inter',system-ui,sans-serif;color:var(--ink);-webkit-font-smoothing:antialiased;min-height:100vh;
  background:var(--paper); /* flat on purpose: no gradients or decorative blobs */
}
.serif{font-family:'Lexend Exa',sans-serif;font-weight:600;letter-spacing:-.01em}
.mono{font-family:'IBM Plex Mono',monospace}
a{color:var(--accent)}
a:hover{color:var(--accent-hover)}
.muted{color:var(--sub)}
.small{font-size:13px}
.center{text-align:center}

.nav{display:flex;align-items:center;justify-content:space-between;padding:18px 26px;max-width:1080px;margin:0 auto}
.brand{font-family:'Lexend Exa',sans-serif;font-weight:600;font-size:22px;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:9px}
.brand .dot{width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 5px var(--accent-soft)}
.navlinks{display:flex;align-items:center;gap:18px}
.navlinks a{color:var(--ink);text-decoration:none;font-size:14px;font-weight:500}
.navlinks a:hover{color:var(--accent)}
.btn-sm{background:var(--ink);color:#fff!important;padding:8px 15px;border-radius:10px}

.main{max-width:1080px;margin:0 auto;padding:20px 26px 60px}
.foot{text-align:center;color:var(--sub);font-size:13px;padding:30px;display:flex;flex-direction:column;gap:8px}
.foot-links{display:flex;justify-content:center;gap:16px}
.foot-links a{color:var(--sub);text-decoration:none}
.foot-links a:hover{color:var(--accent)}
.foot-entity{font-size:12px;color:#9099A6}

.btn{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;font-weight:600;font-size:15px;padding:13px 24px;border-radius:10px;border:none;cursor:pointer;transition:.18s}
.btn:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 12px 26px -12px rgba(124,55,153,.45)}
.btn-ghost{display:inline-block;background:#fff;color:var(--ink);text-decoration:none;font-weight:600;font-size:15px;padding:12px 22px;border-radius:10px;border:1px solid var(--line);cursor:pointer}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.full{width:100%;text-align:center}
.sm{font-size:13px;padding:9px 15px;margin-top:12px}

.hero{text-align:center;padding:50px 0 30px}
.eyebrow{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);font-weight:500;margin-bottom:18px}
.big{font-size:clamp(30px,5vw,52px);line-height:1.05;margin-bottom:18px}
.lead{max-width:600px;margin:0 auto 26px;color:var(--sub);font-size:17px;line-height:1.55}
.cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

.pricing{padding:40px 0}
.pricing h2{font-size:30px;text-align:center;margin-bottom:6px}
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}
@media(max-width:760px){.plan-grid{grid-template-columns:1fr}}
.plan-card{position:relative;background:var(--paper-2);border:1px solid var(--line);border-radius:14px;padding:26px 22px;text-align:center}
.plan-card.featured{border-color:var(--accent);box-shadow:var(--shadow)}
.plan-card.current{border-color:var(--ink)}
.plan-card h3{font-family:'Lexend Exa',sans-serif;font-size:22px;margin-bottom:10px}
.plan-card .limit{font-size:32px;font-family:'IBM Plex Mono',monospace;color:var(--ink);font-weight:600}
.plan-card .limit span{display:block;font-family:'Inter';font-size:12px;color:var(--sub);font-weight:500;margin-top:2px}
.plan-card p{margin:12px 0 18px}
.tagpill{
  position:absolute;top:-12px;left:50%;transform:translateX(-50%) rotate(-2deg);
  background:var(--stamp);color:#fff;font-family:'IBM Plex Mono',monospace;
  font-size:10.5px;font-weight:600;padding:4px 12px;border-radius:4px;letter-spacing:.08em;text-transform:uppercase;
}
.current-badge{background:transparent;border:1.5px solid var(--ink);color:var(--ink);font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:12px;letter-spacing:.04em;text-transform:uppercase;padding:10px;border-radius:8px}

.authbox{max-width:420px;margin:30px auto;background:var(--paper-2);border:1px solid var(--line);border-radius:16px;padding:34px}
.authbox h1{font-family:'Lexend Exa',sans-serif;font-size:26px;margin-bottom:6px}
.form{display:flex;flex-direction:column;gap:6px;margin:18px 0}
.form label{font-size:13px;font-weight:600;margin-top:10px}
.form input{font-family:'Inter';font-size:15px;border:1px solid var(--line);border-radius:9px;padding:12px;background:#fff}
.form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.form .btn{margin-top:18px}
.alert{background:#FBEAEA;border:1px solid #F0C4C0;color:#B3261E;padding:12px 14px;border-radius:9px;font-size:14px;margin-bottom:8px}
.alert.ok{background:#E6F3EA;border-color:#BFE0CC;color:var(--stamp)}

.dash h1{font-family:'Lexend Exa',sans-serif;font-size:28px;margin:10px 0 22px}
.sec{font-family:'Lexend Exa',sans-serif;font-size:20px;margin:34px 0 14px}
.usage-card{background:var(--paper-2);border:1px solid var(--line);border-radius:14px;padding:22px}
.usage-top{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:14px}
.planname{font-family:'Lexend Exa',sans-serif;font-size:24px;font-weight:600}
.usage-count{font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:19px}
.usage-count span{font-family:'Inter';font-weight:500;color:var(--sub);font-size:14px}
.bar{height:10px;border-radius:8px;background:#E9EBEF;overflow:hidden}
.bar-fill{height:100%;background:var(--accent);border-radius:8px;transition:width .3s}

.tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:640px){.tool-grid{grid-template-columns:1fr}}
.tool-card{background:var(--paper-2);border:1px solid var(--line);border-radius:14px;padding:22px;text-decoration:none;color:var(--ink);transition:.18s;display:block}
.tool-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.tool-card .tool-ic{width:44px;height:44px;border-radius:9px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:20px;font-family:'Lexend Exa',sans-serif;margin-bottom:12px}
.tool-card h3{font-family:'Lexend Exa',sans-serif;font-size:19px;margin-bottom:6px}

/* ---------- Blog ---------- */
.blog-hero{padding:36px 0 20px;text-align:center}
.blog-hero h1{font-family:'Lexend Exa',sans-serif;font-size:clamp(26px,4vw,38px);margin-bottom:10px}
.blog-hero p{max-width:560px;margin:0 auto;color:var(--sub);font-size:16px}

.post-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:30px}
@media(max-width:720px){.post-grid{grid-template-columns:1fr}}
.post-card{background:var(--paper-2);border:1px solid var(--line);border-radius:14px;padding:24px;text-decoration:none;color:var(--ink);display:block;transition:.18s}
.post-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.post-tag{font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);font-weight:600}
.post-card h2{font-family:'Lexend Exa',sans-serif;font-size:19px;line-height:1.3;margin:10px 0 8px}
.post-card p{color:var(--sub);font-size:14px;line-height:1.5;margin-bottom:12px}
.post-date{font-size:12px;color:var(--sub);font-family:'IBM Plex Mono',monospace}

.article{max-width:680px;margin:20px auto 0}
.article-meta{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.article h1{font-family:'Lexend Exa',sans-serif;font-size:clamp(26px,4vw,36px);line-height:1.2;margin-bottom:22px}
.article-body{font-size:17px;line-height:1.75;color:var(--ink)}
.article-body p{margin-bottom:20px}
.article-body h2{font-family:'Lexend Exa',sans-serif;font-size:23px;margin:36px 0 14px;line-height:1.3}
.article-body h3{font-family:'Lexend Exa',sans-serif;font-size:19px;margin:28px 0 10px}
.article-body ul{margin:0 0 20px 22px}
.article-body li{margin-bottom:10px;line-height:1.6}
.article-body strong{color:var(--ink)}
.article-cta{background:var(--paper-2);border:1px solid var(--line);border-radius:14px;padding:28px;text-align:center;margin:44px 0 10px}
.article-cta h3{font-family:'Lexend Exa',sans-serif;font-size:20px;margin-bottom:8px}
.article-cta p{color:var(--sub);margin-bottom:18px}
.back-link{display:inline-block;margin-bottom:24px;font-size:14px;font-weight:500}