/* Let Notes — compact, snappy product page */
@font-face{font-family:'Inter';src:url('fonts/Inter-regular.ttf') format('truetype');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Inter';src:url('fonts/Inter-500.ttf') format('truetype');font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:'Inter';src:url('fonts/Inter-600.ttf') format('truetype');font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:'Inter';src:url('fonts/Inter-700.ttf') format('truetype');font-weight:700;font-style:normal;font-display:swap}

:root{
  --paper:#f6f6f7;
  --ink:#1c1d20;
  --muted:#6f7177;
  --line:#dcdde0;
  --line-soft:#f0f0f2;
  --accent:#3478d4;
  --accent-hover:#2865b8;
  --accent-soft:#e5eefb;
  --sans:'Inter',-apple-system,BlinkMacSystemFont,'Helvetica Neue',sans-serif;
  --mono:'SFMono-Regular',ui-monospace,Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--paper);font:400 15px/1.5 var(--sans);-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,p,ul,ol{margin:0;padding:0}
ul,ol{list-style:none}

.shell{width:min(1080px,calc(100% - 40px));margin:0 auto}

/* Header */
.site-header{height:50px;padding:0 max(20px,calc((100vw - 1080px)/2));display:flex;align-items:center;justify-content:space-between;background:rgba(246,246,247,.85);backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.wordmark{display:inline-flex;align-items:center;gap:7px;font:600 14px var(--sans);letter-spacing:-.02em}
.wordmark img{width:18px;height:18px}
nav{display:flex;gap:20px;align-items:center}
nav a{font-size:13px;color:var(--muted);transition:color .12s}
nav a:hover{color:var(--ink)}
.nav-cta{padding:5px 11px;border:1px solid var(--line);border-radius:6px;color:var(--ink);background:#fff;font-weight:500}
.nav-cta span{margin-left:6px;font-family:var(--mono);font-size:11px;color:var(--muted)}
.nav-cta:hover{border-color:var(--ink)}

/* Hero */
.hero{padding:30px 0 20px}
.hero-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:40px;align-items:center}
.eyebrow{display:inline-flex;gap:7px;align-items:center;font:500 11px var(--mono);color:var(--muted);letter-spacing:.04em;text-transform:uppercase}
.eyebrow-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px rgba(52,120,212,.15)}
h1{font:600 clamp(34px,4vw,48px)/1.05 var(--sans);letter-spacing:-.04em;margin:12px 0 10px;max-width:520px}
h1 .accent,.cta-copy h2 .accent{color:var(--accent)}
.hero-lede{color:var(--muted);font-size:15px;line-height:1.55;max-width:440px}
.hero-actions{display:flex;align-items:center;gap:18px;margin-top:20px}
.button{display:inline-flex;align-items:center;padding:9px 14px;font-size:13px;font-weight:600;border-radius:6px;transition:background .12s,border-color .12s,color .12s}
.button span{margin-left:8px;font-family:var(--mono);font-weight:500;font-size:11px}
.button-primary{background:var(--accent);color:#fff}
.button-primary:hover{background:var(--accent-hover)}
.text-link{font-size:13px;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:1px}
.text-link:hover{color:var(--ink);border-color:var(--ink)}
.text-link span{margin-left:6px;font-family:var(--mono);font-size:11px}
.hero-preview{margin:0}
.hero-preview img{width:100%}
.hero-preview figcaption{font:11px var(--mono);color:var(--muted);margin-top:6px;text-align:right}
.hero-preview figcaption span{color:var(--accent)}

/* How it works */
.how{padding:38px 0 30px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.feature-list{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.feature-list li{padding:0 0 2px}
.feature-tag{font:500 10px var(--mono);color:var(--accent);letter-spacing:.06em;text-transform:uppercase}
.feature-list h3{font:600 17px/1.2 var(--sans);letter-spacing:-.02em;margin:8px 0 6px}
.feature-list p{font-size:13px;color:var(--muted);line-height:1.5;max-width:300px}

/* Fit */
.fit{padding:34px 0;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.fit-card{padding:22px 24px;background:#fff;border:1px solid var(--line);border-radius:10px}
.fit-good{background:var(--accent-soft);border-color:transparent}
.fit-card h2{font:600 clamp(19px,1.8vw,23px)/1.2 var(--sans);letter-spacing:-.02em;margin:10px 0 12px;max-width:380px}
.fit-card ul{display:flex;flex-direction:column}
.fit-card li{padding:7px 0 7px 20px;border-top:1px solid var(--line-soft);font-size:13px;line-height:1.45;position:relative}
.fit-card li:first-child{border-top:0}
.fit-card li::before{content:'';position:absolute;left:0;top:15px;width:12px;height:1px;background:var(--accent)}
.fit-footnote{font:11px var(--mono);color:var(--muted);margin-top:12px}

/* CTA */
.cta{padding:0 0 28px}
.cta-inner{background:var(--ink);color:#fff;border-radius:12px;padding:30px 36px;display:grid;grid-template-columns:1.5fr 1fr;gap:28px;align-items:center}
.cta-copy .eyebrow{color:#bcc6d4}
.cta-copy .eyebrow-dot{background:var(--accent);box-shadow:0 0 0 3px rgba(52,120,212,.35)}
.cta-copy h2{font:600 clamp(22px,2.4vw,30px)/1.1 var(--sans);letter-spacing:-.03em;margin:8px 0 8px;max-width:480px}
.cta-copy p{font-size:13px;color:#bcc6d4;max-width:380px}
.cta-actions{display:flex;flex-direction:column;align-items:flex-start;gap:8px}
.button-light{background:var(--accent);color:#fff}
.button-light:hover{background:#fff;color:var(--ink)}
.pricing{font:11px var(--mono);color:#bcc6d4}

/* Footer */
.site-footer{padding:18px 0;border-top:1px solid var(--line)}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.footer-inner p{font:11px var(--mono);color:var(--muted)}

/* Responsive */
@media (max-width:760px){
  .shell{width:calc(100% - 32px)}
  nav a:not(.nav-cta){display:none}
  .hero{padding:24px 0 16px}
  .hero-grid{grid-template-columns:1fr;gap:22px}
  h1{font-size:32px;max-width:none}
  .hero-lede{font-size:14px}
  .hero-actions{gap:14px;flex-wrap:wrap}
  .how{padding:28px 0 22px}
  .feature-list{grid-template-columns:1fr;gap:20px}
  .fit{grid-template-columns:1fr;padding:24px 0;gap:10px}
  .fit-card{padding:18px 20px}
  .fit-card h2{font-size:19px}
  .cta-inner{grid-template-columns:1fr;gap:18px;padding:22px 22px}
  .cta-copy h2{font-size:21px}
  .footer-inner{flex-direction:column;align-items:flex-start;gap:6px}
}