/* ============================================
   hotelaiassistant.com — minimal stylesheet
   Palette: navy + white, calm corporate
   ============================================ */

:root{
  --navy:#0A2540;
  --navy-2:#12355b;
  --accent:#2B5EDB;
  --text:#1a2332;
  --muted:#5b6b7c;
  --line:#e6e9ef;
  --bg:#ffffff;
  --bg-soft:#f7f8fb;
  --radius:10px;
  --maxw:1040px;
  --ff:"Inter","Helvetica Neue",Arial,system-ui,-apple-system,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--ff);
  color:var(--text);
  background:var(--bg);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

a{color:var(--navy);text-decoration:none;border-bottom:1px solid transparent;transition:border-color .2s ease,color .2s ease}
a:hover{border-bottom-color:var(--accent);color:var(--accent)}

img,svg{max-width:100%;display:block;height:auto}

.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:20;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header .row{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 0;gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;border:0}
.brand:hover{border:0}
.brand img{height:44px;width:auto;display:block}
.brand svg{height:44px;width:auto}
@media (max-width:720px){
  .brand img,.brand svg{height:38px}
}
.nav{display:flex;gap:28px;align-items:center}
.nav a{font-size:14.5px;color:var(--muted);border:0}
.nav a:hover{color:var(--navy)}
.nav .cta{
  background:var(--navy);color:#fff;padding:9px 16px;border-radius:999px;
  font-weight:500;font-size:14px;
}
.nav .cta:hover{background:var(--accent);color:#fff}
.lang{font-size:13px;color:var(--muted);letter-spacing:.02em;text-transform:uppercase}
.lang a{border:0;color:var(--muted);padding:0 4px}
.lang a.active{color:var(--navy);font-weight:600}

.menu-toggle{display:none;border:0;background:none;cursor:pointer;padding:6px}
.menu-toggle span{display:block;width:22px;height:2px;background:var(--navy);margin:4px 0;border-radius:2px}

/* ---------- Hero ---------- */
.hero{padding:96px 0 80px;border-bottom:1px solid var(--line)}
.hero h1{
  font-size:clamp(32px,5vw,54px);
  line-height:1.08;
  letter-spacing:-0.02em;
  font-weight:700;
  margin:0 0 20px;
  color:var(--navy);
  max-width:820px;
}
.hero .lede{
  font-size:clamp(17px,1.4vw,20px);
  color:var(--muted);
  max-width:680px;
  margin:0 0 32px;
}
.hero .cta-row{display:flex;gap:12px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 22px;border-radius:999px;border:1px solid var(--navy);
  font-weight:500;font-size:15px;
  transition:all .2s ease;cursor:pointer;
}
.btn.primary{background:var(--navy);color:#fff;border-color:var(--navy)}
.btn.primary:hover{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.ghost{background:transparent;color:var(--navy)}
.btn.ghost:hover{background:var(--navy);color:#fff}
.btn.wa{background:#25D366;border-color:#25D366;color:#fff}
.btn.wa:hover{background:#128c7e;border-color:#128c7e}

/* ---------- Sections ---------- */
section{padding:80px 0}
section.alt{background:var(--bg-soft)}
.section-title{
  font-size:clamp(24px,3vw,34px);
  color:var(--navy);
  margin:0 0 12px;
  letter-spacing:-0.01em;
  font-weight:700;
}
.section-sub{color:var(--muted);max-width:640px;margin:0 0 48px;font-size:17px}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;transition:border-color .2s ease,transform .2s ease;
}
.card:hover{border-color:var(--navy)}
.card h3{margin:0 0 8px;font-size:18px;color:var(--navy);font-weight:600}
.card p{margin:0;color:var(--muted);font-size:15px}
.card .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:50%;
  background:var(--navy);color:#fff;font-size:14px;font-weight:600;margin-bottom:14px;
}

/* ---------- Feature list ---------- */
.features{display:grid;grid-template-columns:repeat(2,1fr);gap:24px 48px}
.feature{display:flex;gap:14px;align-items:flex-start}
.feature .dot{
  flex:none;width:8px;height:8px;border-radius:50%;background:var(--accent);
  margin-top:10px;
}
.feature h4{margin:0 0 4px;font-size:16px;color:var(--navy);font-weight:600}
.feature p{margin:0;color:var(--muted);font-size:15px}

/* ---------- Pricing ---------- */
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.plan{
  border:1px solid var(--line);border-radius:var(--radius);padding:28px;
  background:#fff;position:relative;
}
.plan.featured{border-color:var(--navy);box-shadow:0 8px 30px rgba(10,37,64,.08)}
.plan .name{font-size:14px;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}
.plan .price{font-size:32px;color:var(--navy);font-weight:700;margin:8px 0 4px;letter-spacing:-0.01em}
.plan .price small{font-size:14px;color:var(--muted);font-weight:400}
.plan ul{list-style:none;padding:0;margin:18px 0 22px;font-size:15px;color:var(--muted)}
.plan ul li{padding:6px 0;border-bottom:1px solid var(--line)}
.plan ul li:last-child{border-bottom:0}
.plan .btn{width:100%;justify-content:center}

/* ---------- FAQ ---------- */
.faq details{
  border-bottom:1px solid var(--line);padding:18px 0;
}
.faq summary{
  cursor:pointer;font-weight:600;color:var(--navy);font-size:16px;
  list-style:none;display:flex;justify-content:space-between;align-items:center;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:var(--muted);font-weight:400}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:14px 0 0;color:var(--muted);font-size:15px}

/* ---------- Contact form ---------- */
.contact-wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
form.contact{display:grid;gap:14px}
form.contact input,form.contact textarea{
  font-family:inherit;font-size:15px;color:var(--text);
  border:1px solid var(--line);border-radius:8px;padding:12px 14px;
  background:#fff;outline:none;transition:border-color .2s ease;width:100%;
}
form.contact input:focus,form.contact textarea:focus{border-color:var(--navy)}
form.contact textarea{min-height:130px;resize:vertical}
form.contact button{justify-self:start}

.contact-info p{margin:0 0 10px;color:var(--muted);font-size:15px}
.contact-info a{color:var(--navy)}

/* ---------- Footer ---------- */
.site-footer{
  border-top:1px solid var(--line);padding:40px 0 28px;
  color:var(--muted);font-size:14px;
}
.site-footer .row{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.site-footer a{color:var(--muted);border:0}
.site-footer a:hover{color:var(--navy)}

/* ---------- Blog ---------- */
.blog-hero{padding:72px 0 24px}
.blog-hero h1{font-size:clamp(28px,4vw,42px);color:var(--navy);margin:0 0 10px;letter-spacing:-0.01em}
.blog-hero p{color:var(--muted);max-width:620px;margin:0}

.post-list{display:grid;gap:18px;margin:40px 0 0}
.post-item{
  border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:#fff;
  transition:border-color .2s ease;
}
.post-item:hover{border-color:var(--navy)}
.post-item a{border:0;display:block}
.post-item h2{font-size:20px;margin:0 0 6px;color:var(--navy);letter-spacing:-0.01em}
.post-item .meta{font-size:13px;color:var(--muted);margin-bottom:8px}
.post-item p{color:var(--muted);font-size:15px;margin:0}

.article{max-width:720px;margin:0 auto;padding:40px 24px 80px}
.article .meta{color:var(--muted);font-size:13.5px;margin-bottom:8px}
.article h1{font-size:clamp(28px,3.6vw,40px);color:var(--navy);margin:0 0 20px;letter-spacing:-0.015em;line-height:1.2}
.article h2{font-size:22px;color:var(--navy);margin:40px 0 12px;letter-spacing:-0.01em}
.article h3{font-size:18px;color:var(--navy);margin:28px 0 8px}
.article p{margin:0 0 16px;color:#2a3545}
.article ul,.article ol{color:#2a3545;padding-left:22px}
.article li{margin:4px 0}
.article blockquote{
  border-left:3px solid var(--accent);margin:22px 0;padding:6px 18px;
  color:var(--muted);font-style:italic;
}
.article .back{display:inline-block;font-size:14px;color:var(--muted);border:0;margin-bottom:14px}
.article .back:hover{color:var(--navy)}
.article .cta-inline{
  border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;margin:32px 0;background:var(--bg-soft);
}
.article .cta-inline h3{margin:0 0 6px;color:var(--navy)}
.article .cta-inline p{margin:0 0 14px;color:var(--muted)}

/* ---------- WhatsApp floating ---------- */
.wa-float{
  position:fixed;right:22px;bottom:22px;z-index:30;
  width:54px;height:54px;border-radius:50%;background:#25D366;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 24px rgba(37,211,102,.4);border:0;
  transition:transform .2s ease;
}
.wa-float:hover{transform:translateY(-2px);border:0}
.wa-float svg{width:28px;height:28px;fill:#fff}

/* ---------- Responsive ---------- */
@media (max-width:820px){
  .grid-3,.grid-2,.pricing,.features,.contact-wrap{grid-template-columns:1fr;gap:16px}
  .hero{padding:64px 0 56px}
  section{padding:56px 0}
  .menu-toggle{display:block}
  .nav{
    display:none;position:absolute;top:100%;left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;gap:0;padding:8px 24px 20px;
  }
  .nav.open{display:flex}
  .nav a{padding:12px 0;border-bottom:1px solid var(--line);width:100%}
  .nav a:last-child{border-bottom:0}
  .nav .cta{margin-top:8px;width:100%;text-align:center}
}