*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#fafaf9;
  --white:#fff;
  --navy:#1a365d;
  --navy-light:#2563eb;
  --text:#1a1a1a;
  --text-2:#4b5563;
  --text-3:#9ca3af;
  --border:#e5e7eb;
  --green:#16a34a;
  --amber:#eab308;
  --red:#dc2626;
  --serif:'DM Serif Display',Georgia,serif;
  --sans:'DM Sans',system-ui,sans-serif;
}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--navy);text-decoration:none;font-weight:600}
a:hover{text-decoration:underline}
.container{max-width:720px;margin:0 auto;padding:0 24px}

/* NAV */
nav{padding:16px 0;border-bottom:1px solid var(--border);background:var(--white)}
.nav-inner{max-width:860px;margin:0 auto;padding:0 24px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.nav-brand{font-family:var(--serif);font-size:22px;color:var(--navy);text-decoration:none;flex-shrink:0}
.nav-brand:hover{text-decoration:none}
.nav-brand span{color:var(--navy-light)}
.nav-tabs{display:flex;gap:22px;align-items:center}
.nav-tab{font-size:14px;color:var(--text-2);font-weight:500;text-decoration:none;padding:4px 0;border-bottom:2px solid transparent;transition:all .15s}
.nav-tab:hover{color:var(--navy);text-decoration:none}
.nav-tab.active{color:var(--navy);font-weight:700;border-bottom-color:var(--navy-light)}
.nav-link{font-size:13px;color:var(--text-3);font-weight:500}

/* BLOG INDEX */
.blog-hero{padding:60px 0 40px;text-align:center;background:linear-gradient(180deg,var(--bg) 0%,#fff 100%)}
.blog-hero h1{font-family:var(--serif);font-size:clamp(1.8rem,4.5vw,2.6rem);color:var(--navy);margin-bottom:12px;line-height:1.15}
.blog-hero p{font-size:16px;color:var(--text-2);max-width:560px;margin:0 auto}
.post-grid-wrap{padding:20px 0 80px;background:var(--bg)}
.post-grid{display:grid;gap:22px;max-width:720px;margin:0 auto;padding:0 24px}
.post-card{background:#fff;border:1.5px solid var(--border);border-radius:14px;padding:28px;transition:all .2s;cursor:pointer}
.post-card:hover{border-color:var(--navy-light);transform:translateY(-2px);box-shadow:0 8px 24px rgba(26,54,93,.08)}
.post-grid a{text-decoration:none}
.post-grid a:hover{text-decoration:none}
.post-card-tag{display:inline-block;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--navy-light);margin-bottom:12px}
.post-card h2{font-family:var(--serif);font-size:22px;color:var(--navy);margin-bottom:10px;line-height:1.25}
.post-card p{font-size:15px;color:var(--text-2);margin-bottom:14px;font-weight:400}
.post-card-meta{font-size:12px;color:var(--text-3)}

/* BLOG POST */
.post{padding:60px 0 80px;background:#fff}
.post-inner{max-width:680px;margin:0 auto;padding:0 24px}
.post-tag{display:inline-block;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--navy-light);margin-bottom:14px;background:#eff6ff;padding:5px 10px;border-radius:4px}
.post h1{font-family:var(--serif);font-size:clamp(1.75rem,4.2vw,2.5rem);color:var(--navy);line-height:1.18;margin-bottom:14px}
.post-meta{font-size:13px;color:var(--text-3);margin-bottom:36px;padding-bottom:20px;border-bottom:1px solid var(--border)}
.post h2{font-family:var(--serif);font-size:26px;color:var(--navy);margin:44px 0 14px;line-height:1.25}
.post h3{font-family:var(--sans);font-size:18px;font-weight:700;color:var(--text);margin:28px 0 10px}
.post p{font-size:16px;color:var(--text);margin-bottom:18px;line-height:1.75}
.post ul,.post ol{margin:0 0 22px 24px;padding:0}
.post li{font-size:16px;color:var(--text);margin-bottom:10px;line-height:1.7}
.post strong{font-weight:700;color:var(--navy)}
.post code{background:#f3f4f6;padding:2px 6px;border-radius:4px;font-size:0.92em;color:var(--navy)}
.post a{color:var(--navy-light);font-weight:600}
.post-cta{margin:48px 0 0;padding:34px;background:var(--bg);border:1.5px solid var(--border);border-radius:14px;text-align:center}
.post-cta h3{font-family:var(--serif);font-size:22px;color:var(--navy);margin-bottom:8px;margin-top:0}
.post-cta p{font-size:14px;color:var(--text-2);margin-bottom:20px}
.post-cta a{display:inline-block;background:var(--navy);color:#fff;padding:14px 30px;border-radius:10px;font-weight:700;font-size:14px;text-decoration:none;transition:background .2s}
.post-cta a:hover{background:var(--navy-light);text-decoration:none}

/* HERO */
.hero{padding:80px 0 60px;text-align:center;background:linear-gradient(180deg,var(--bg) 0%,#fff 50%,#f0f4ff 100%)}
.hero h1{font-family:var(--serif);font-size:clamp(2rem,5vw,3rem);color:var(--navy);margin-bottom:16px;line-height:1.15}
.hero h1 em{font-style:italic;color:var(--navy-light)}
.hero-sub{font-size:17px;color:var(--text-2);max-width:480px;margin:0 auto 32px}
.hero-note{font-size:13px;color:var(--text-3);margin-top:12px}

/* SCAN FORM */
.scan-form{display:flex;gap:0;max-width:520px;margin:0 auto;border-radius:12px;overflow:hidden;box-shadow:0 4px 24px rgba(0,0,0,.08);border:1.5px solid var(--border)}
.scan-form input{flex:1;padding:16px 20px;border:none;font-size:16px;font-family:var(--sans);outline:none;background:var(--white);min-width:0}
.scan-form button{padding:16px 28px;background:var(--navy);color:#fff;border:none;font-family:var(--sans);font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;transition:background .2s}
.scan-form button:hover{background:var(--navy-light)}
.scan-form button:disabled{background:#94a3b8;cursor:not-allowed}

/* PROGRESS */
.progress{max-width:520px;margin:24px auto 0;text-align:center}
.progress-bar{height:6px;background:var(--border);border-radius:3px;overflow:hidden}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--navy),var(--navy-light));border-radius:3px;width:0;transition:width .3s}
.progress-text{font-size:13px;color:var(--text-3);margin-top:8px}

/* RESULTS */
.results{padding:60px 0 80px;background:var(--white);border-top:1px solid var(--border)}
.score-hero{display:flex;align-items:center;gap:32px;margin-bottom:40px}
.score-ring{position:relative;width:120px;height:120px;flex-shrink:0}
.score-ring svg{width:120px;height:120px;transform:rotate(-90deg)}
.score-ring-bg{fill:none;stroke:var(--border);stroke-width:8}
.score-ring-fill{fill:none;stroke:var(--green);stroke-width:8;stroke-linecap:round;transition:stroke-dashoffset 1.5s ease-out,stroke .3s}
.score-number{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:36px;font-weight:800;color:var(--text)}
.score-meta h2{font-family:var(--serif);font-size:22px;color:var(--navy);margin-bottom:4px}
.score-url{font-size:14px;color:var(--text-3);word-break:break-all}

/* METRICS */
.metrics-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-bottom:32px}
.metric{background:var(--bg);border-radius:12px;padding:16px;text-align:center;border:1px solid var(--border)}
.metric-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-3);margin-bottom:6px}
.metric-score{font-size:28px;font-weight:800}
.metric-bar{height:4px;background:var(--border);border-radius:2px;margin-top:8px;overflow:hidden}
.metric-bar-fill{height:100%;border-radius:2px;transition:width 1s ease-out}

/* HEADLINES */
.headlines{margin-bottom:40px}
.headline{display:flex;align-items:start;gap:12px;padding:12px 0;border-bottom:1px solid var(--border)}
.headline:last-child{border-bottom:none}
.headline-badge{flex-shrink:0;font-size:10px;font-weight:700;padding:3px 8px;border-radius:4px;text-transform:uppercase}
.headline-badge.critical{background:#fef2f2;color:var(--red)}
.headline-badge.warning{background:#fffbeb;color:var(--amber)}
.headline-badge.good{background:#f0fdf4;color:var(--green)}
.headline-text{font-size:14px;color:var(--text-2)}

/* CTA */
.cta-section{background:var(--bg);border:1.5px solid var(--border);border-radius:16px;padding:36px;text-align:center;margin-bottom:40px}
.cta-section h3{font-family:var(--serif);font-size:22px;color:var(--navy);margin-bottom:8px}
.cta-section>p{font-size:15px;color:var(--text-2);margin-bottom:20px}
.cta-price{margin-bottom:24px}
.price-amount{font-size:36px;font-weight:800;color:var(--navy)}
.price-note{font-size:13px;color:var(--text-3);display:block;margin-top:2px}
.checkout-form{display:flex;gap:0;max-width:440px;margin:0 auto;border-radius:10px;overflow:hidden;border:1.5px solid var(--border)}
.checkout-form input{flex:1;padding:14px 16px;border:none;font-size:15px;font-family:var(--sans);outline:none;min-width:0}
.checkout-form button{padding:14px 24px;background:var(--green);color:#fff;border:none;font-family:var(--sans);font-size:14px;font-weight:700;cursor:pointer;white-space:nowrap;transition:background .2s}
.checkout-form button:hover{background:#15803d}
.cta-includes{font-size:12px;color:var(--text-3);margin-top:16px;max-width:400px;margin-left:auto;margin-right:auto}

/* HOW */
.how{padding:80px 0;border-top:1px solid var(--border)}
.how h2{font-family:var(--serif);font-size:24px;color:var(--navy);text-align:center;margin-bottom:40px}
.how-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.how-step{text-align:center}
.how-num{width:36px;height:36px;border-radius:50%;background:var(--navy);color:#fff;font-weight:800;font-size:15px;display:flex;align-items:center;justify-content:center;margin:0 auto 12px}
.how-step h3{font-size:16px;font-weight:700;margin-bottom:6px}
.how-step p{font-size:14px;color:var(--text-2)}

/* TRUST */
.trust{padding:48px 0;background:var(--navy);color:#fff;text-align:center}
.trust p{font-size:15px;opacity:.8;margin-bottom:8px}
.trust a{color:#fbbf24;font-weight:600}
.trust-sub{font-size:13px;opacity:.5}

footer{padding:24px 0;border-top:1px solid var(--border)}
footer .container{display:flex;justify-content:space-between;font-size:12px;color:var(--text-3)}
footer a{color:var(--text-3);font-weight:500}

@media(max-width:640px){
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .metrics-grid .metric:last-child{grid-column:span 2}
  .how-grid{grid-template-columns:1fr;gap:24px}
  .scan-form{flex-direction:column;border-radius:12px}
  .scan-form input{border-bottom:1px solid var(--border)}
  .scan-form button{border-radius:0 0 10px 10px}
  .checkout-form{flex-direction:column}
  .checkout-form input{border-bottom:1px solid var(--border)}
  .score-hero{flex-direction:column;text-align:center}
  .nav-inner{gap:12px}
  .nav-tabs{gap:14px;width:100%;justify-content:flex-start;order:2;flex-wrap:wrap}
  .nav-tab{font-size:13px}
  .post h1{font-size:1.75rem}
  .post h2{font-size:22px}
}