/* BookLine AI design system — 2026-09 facelift. Palette from the logo. */
:root{
  --ink:#0B1730; --navy:#12234A; --navy-2:#1A2E5C; --line-ink:#24386A;
  --paper:#F6F7FB; --white:#FFFFFF; --line:#E1E5F0; --line-2:#C9D0E0; --tint:#EEF1F8;
  --text:#0B1730; --muted:#3B4763; --faint:#6B7590;
  --cyan:#20B8FF; --cyan-soft:#7FD4FF; --violet:#6B3FE8; --green:#1C9C6B; --green-soft:#E8F6F0; --amber:#B7791F;
  --display:'Sora','Trebuchet MS',Arial,sans-serif; --body:'IBM Plex Sans','Segoe UI',Arial,sans-serif;
  --r:12px; --r-lg:20px; --pad:clamp(20px,5vw,72px); --max:1296px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--text);font-family:var(--body);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
a{color:inherit;text-decoration:none}
a:hover{color:var(--cyan)}
h1,h2,h3,h4{font-family:var(--display);margin:0;letter-spacing:-.02em;line-height:1.1;text-wrap:pretty}
h1{font-size:clamp(36px,5vw,64px);line-height:1.04;font-weight:700}
h2{font-size:clamp(28px,3.2vw,40px);font-weight:700}
h3{font-size:20px;font-weight:600;line-height:1.25}
p{margin:0;text-wrap:pretty}
ul{margin:0;padding:0;list-style:none}
strong{font-weight:600}
.wrap{max-width:var(--max);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.section{padding:clamp(56px,7vw,96px) 0}
.section.tight{padding-top:0}
.eyebrow{display:block;font-size:13px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);margin-bottom:14px}
.lead{font-size:clamp(17px,1.4vw,20px);line-height:1.5;color:var(--muted)}
.muted{color:var(--muted)} .faint{color:var(--faint)}
.head{display:flex;flex-direction:column;gap:14px;max-width:760px;margin-bottom:40px}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--r)}
.card.pad{padding:28px}
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.stack{display:flex;flex-direction:column;gap:14px}
.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.btn{white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 22px;border-radius:var(--r);font-weight:600;font-size:16px;min-height:48px;border:1px solid transparent;cursor:pointer;transition:transform .15s,background .15s,color .15s}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--ink);color:var(--white)} .btn-primary:hover{color:var(--white);background:var(--navy)}
.btn-cyan{background:var(--cyan);color:var(--ink)} .btn-cyan:hover{color:var(--ink);background:var(--cyan-soft)}
.btn-ghost{border-color:var(--line-2);background:transparent;color:var(--ink)}
.btn-link{padding:14px 8px;color:var(--ink)}
.btn svg{flex:none}
.pill{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;padding:6px 10px;border-radius:999px;background:var(--tint);color:var(--navy)}
.pill.ok{background:var(--green-soft);color:var(--green)}
.dot{width:10px;height:10px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px rgba(28,156,107,.18);flex:none}
.ink{background:var(--ink);color:var(--white)}
.ink .eyebrow{color:var(--cyan-soft)} .ink .lead,.ink .muted{color:#B8C2DC} .ink .card{background:var(--navy);border-color:var(--line-ink)}
.ink a:hover{color:var(--cyan-soft)}
.check{display:flex;gap:10px;align-items:flex-start} .check svg{flex:none;margin-top:3px}
.checks{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 24px}
.icon{width:28px;height:28px;color:var(--cyan)}
/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(246,247,251,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--display);font-weight:700;font-size:20px;letter-spacing:-.02em}
.brand img{width:38px;height:38px} .brand span{color:var(--cyan)}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links>li{position:relative}
.nav-links>li>a,.nav-links>li>button{display:flex;align-items:center;gap:6px;padding:10px 12px;font:inherit;font-weight:500;font-size:15px;color:var(--ink);background:none;border:0;border-radius:8px;cursor:pointer;min-height:44px}
.nav-links>li>a:hover,.nav-links>li>button:hover,.nav-links>li.open>button{background:var(--tint)}
.menu{position:absolute;top:calc(100% + 8px);left:0;min-width:300px;background:var(--white);border:1px solid var(--line);border-radius:14px;box-shadow:0 24px 60px rgba(11,23,48,.12);padding:10px;display:none}
.menu.wide{min-width:560px;display:none;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
li.open>.menu{display:block} li.open>.menu.wide{display:grid}
.menu a{display:flex;flex-direction:column;gap:2px;padding:10px 12px;border-radius:10px;color:var(--ink)}
.menu a:hover{background:var(--tint);color:var(--ink)}
.menu a small{color:var(--faint);font-size:13px}
.menu h4{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);padding:8px 12px 4px;font-family:var(--body);font-weight:600}
.nav-cta{display:flex;align-items:center;gap:8px}
.nav-cta .btn{padding:10px 14px;min-height:44px;font-size:15px}
.burger{display:none;width:44px;height:44px;align-items:center;justify-content:center;background:none;border:1px solid var(--line-2);border-radius:10px;cursor:pointer}
/* hero */
.hero{padding:clamp(56px,7vw,96px) 0 clamp(48px,5vw,80px)}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.hero .stack{gap:26px}
.hero .lead{max-width:560px}
.transcript{padding:24px;display:flex;flex-direction:column;gap:16px;box-shadow:0 24px 60px rgba(11,23,48,.10)}
.transcript .top{display:flex;align-items:center;justify-content:space-between;font-size:14px;font-weight:600}
.transcript .time{font-weight:400;color:var(--faint);font-variant-numeric:tabular-nums}
.bubbles{display:flex;flex-direction:column;gap:10px;font-size:15px;line-height:1.45}
.bubbles>div{max-width:82%;padding:12px 14px;border-radius:12px}
.bubbles .them{align-self:flex-start;background:var(--tint);border-bottom-left-radius:4px}
.bubbles .ai{align-self:flex-end;background:var(--ink);color:var(--white);border-bottom-right-radius:4px}
.transcript .sample{width:100%;height:40px;border-radius:999px}
.transcript .tags{display:flex;gap:10px;flex-wrap:wrap;padding-top:10px;border-top:1px solid var(--line)}
.note{flex-wrap:nowrap;align-items:flex-start} .note .dot{margin-top:6px}
/* proof */
.proof .card{padding:24px;display:flex;flex-direction:column;gap:6px}
.stat{font-family:var(--display);font-size:34px;font-weight:700;letter-spacing:-.02em}
.proof h3{font-size:19px}
.proof small{font-size:14px;color:var(--muted)}
/* pillars */
.pillar{padding:28px;display:flex;flex-direction:column;gap:14px}
.pillar p{font-size:15px;color:var(--muted)}
/* split */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center}
.split.rev{grid-template-columns:.9fr 1.1fr}
/* table */
.table{display:flex;flex-direction:column;overflow:hidden}
.table .tr{display:grid;grid-template-columns:1.2fr .8fr 1.8fr;gap:16px;padding:18px 24px;border-bottom:1px solid var(--line);font-size:15px;align-items:center}
.table .tr:last-child{border-bottom:0}
.table .th{padding:14px 24px;font-size:13px;font-weight:600;color:var(--faint);text-transform:uppercase;letter-spacing:.08em}
.status.ok{color:var(--green);font-weight:600} .status.warn{color:var(--amber);font-weight:600} .status.muted{color:var(--faint);font-weight:600}
/* pricing */
.plan{padding:32px;display:flex;flex-direction:column;gap:18px}
.plan.featured{border:2px solid var(--ink)}
.plan .name{font-size:15px;font-weight:600;color:var(--faint);display:flex;justify-content:space-between;align-items:center}
.price{display:flex;align-items:baseline;gap:6px} .price b{font-family:var(--display);font-size:44px;font-weight:700;letter-spacing:-.02em} .price span{color:var(--faint)}
.plan .setup{font-size:13px;color:var(--faint);margin-top:-8px;line-height:1.45} .plan .setup strong{color:var(--ink);font-weight:600}
.plan ul{display:flex;flex-direction:column;gap:10px;font-size:15px}
.badge{font-size:12px;font-weight:600;padding:4px 10px;background:var(--ink);color:var(--white);border-radius:999px}
.addon{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 24px;border:1px dashed var(--line-2);border-radius:var(--r);font-size:15px}
.addon b{white-space:nowrap}
/* faq */
.faq{display:grid;grid-template-columns:.8fr 1.2fr;gap:64px}
.faq details{border-top:1px solid var(--line);padding:0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:22px 0;font-size:18px;font-weight:600;font-family:var(--body)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:24px;color:var(--faint);flex:none;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 0 22px;font-size:15px;color:var(--muted)}
/* cta */
.cta{width:calc(100% - 2*var(--pad));max-width:calc(var(--max) - 2*var(--pad));margin:0 auto clamp(40px,5vw,72px);padding:clamp(36px,5vw,64px);border-radius:var(--r-lg);display:flex;align-items:center;justify-content:space-between;gap:40px}
.cta .stack{max-width:640px;gap:12px}
.cta h2{font-size:clamp(28px,3vw,36px)}
/* footer */
.footer{border-top:1px solid var(--line);padding:48px 0 40px;font-size:14px;color:var(--faint)}
.footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1fr;gap:32px;margin-bottom:40px}
.footer h4{font-family:var(--body);font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink);margin-bottom:12px;font-weight:600}
.footer ul{display:flex;flex-direction:column;gap:8px}
.footer a{color:var(--muted)} .footer a:hover{color:var(--cyan)}
.footer .bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:24px;border-top:1px solid var(--line)}
/* prose (legal, about) */
.prose{max-width:760px} .prose h2{font-size:26px;margin:40px 0 12px} .prose h3{margin:24px 0 8px} .prose p,.prose li{color:var(--muted);margin-bottom:12px} .prose ul{list-style:disc;padding-left:22px} .prose ol{padding-left:22px;color:var(--muted)}
/* steps */
.steps{counter-reset:s} .step{padding:28px;display:flex;flex-direction:column;gap:10px} .step::before{counter-increment:s;content:counter(s,decimal-leading-zero);font-family:var(--display);font-size:13px;font-weight:600;color:var(--cyan);letter-spacing:.1em}
/* reveal */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .6s cubic-bezier(.2,.7,.2,1),transform .6s cubic-bezier(.2,.7,.2,1)}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}
/* responsive */
@media (max-width:1080px){
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero .wrap,.split,.split.rev,.faq{grid-template-columns:1fr;gap:40px}
  .footer .cols{grid-template-columns:1fr 1fr 1fr}
}
@media (max-width:860px){
  .nav-links,.nav-cta .hide-m{display:none}
  .burger{display:flex}
  .nav.open .nav-links{display:flex;flex-direction:column;align-items:stretch;position:absolute;left:0;right:0;top:100%;background:var(--white);border-bottom:1px solid var(--line);padding:12px var(--pad) 20px;gap:2px}
  .nav.open .nav-links>li>a,.nav.open .nav-links>li>button{width:100%;justify-content:space-between}
  .nav.open .menu,.nav.open .menu.wide{position:static;display:block;box-shadow:none;border:0;padding:0 0 8px 8px;min-width:0}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .checks{grid-template-columns:1fr}
  .table .tr{grid-template-columns:1fr;gap:4px}
  .table .th{display:none}
  .cta{flex-direction:column;align-items:flex-start}
  .footer .cols{grid-template-columns:1fr 1fr}
  .hero .btn{width:100%}
  .brand{font-size:17px;gap:8px} .brand img{width:30px;height:30px}
  .nav-cta{gap:6px} .nav-cta .btn-primary{padding:10px 12px;font-size:14px;min-height:40px}
  .nav .wrap{min-height:64px;gap:12px}
}
@media (max-width:520px){.grid-4{grid-template-columns:1fr}.footer .cols{grid-template-columns:1fr}}
/* added: pricing */
.compare{overflow-x:auto}
.compare .tr{grid-template-columns:2fr 1fr 1fr 1fr;text-align:center;min-width:600px;gap:12px}
.compare .tr>:first-child{text-align:left} .compare .status.ok{display:inline-flex;justify-content:center}
@media (max-width:860px){.compare .th{display:grid}}
/* added: contact */
.form{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form .full{grid-column:1/-1}
.form label{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:600}
.form input,.form select,.form textarea{font:inherit;font-size:16px;padding:12px 14px;border:1px solid var(--line-2);border-radius:10px;background:var(--white);color:var(--text);width:100%}
.form textarea{min-height:130px;resize:vertical}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--cyan);outline-offset:1px;border-color:var(--cyan)}
@media (max-width:600px){.form{grid-template-columns:1fr}}
/* added: legal */
.prose table{width:100%;border-collapse:collapse;font-size:15px;margin:12px 0 20px}
.prose th,.prose td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.prose th{background:var(--tint);font-weight:600}