/*
 * Ubik theme — main stylesheet.
 * Design tokens at :root. All section styles use those vars.
 */

:root{
  --navy:#0a1f44;
  --blue:#1a56db;
  --blue-bright:#2f6fed;
  --sky:#e8f0fe;
  --ink:#0a1126;
  --slate:#5b6478;
  --bg:#ffffff;
  --bg-soft:#f5f7fb;
  --line:#e4e8f0;
  --radius:18px;
  --radius-pill:50px;
  --maxw:1180px;
  --section-py:96px;
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:'Manrope',sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
h1,h2,h3{font-family:'Sora',sans-serif;line-height:1.18;letter-spacing:-0.02em;color:var(--navy);}
h1{font-size:clamp(2.2rem,4.6vw,3.6rem);font-weight:800;}
h2{font-size:clamp(1.8rem,3.4vw,2.6rem);font-weight:700;margin-bottom:14px;}
h3{font-size:1.25rem;font-weight:700;margin-bottom:10px;}
a{text-decoration:none;color:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:3px solid var(--blue-bright);outline-offset:2px;border-radius:6px;
}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.eyebrow{
  display:inline-block;font-size:.82rem;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;color:var(--blue);
  background:var(--sky);padding:6px 14px;border-radius:var(--radius-pill);margin-bottom:18px;
}
.section-head{text-align:center;max-width:680px;margin:0 auto 56px;}
.section-head p{color:var(--slate);font-size:1.05rem;}

/* Buttons */
.btn,.btn-ghost{
  display:inline-block;padding:14px 26px;border-radius:var(--radius-pill);
  font-weight:600;font-size:.98rem;transition:transform .2s,background .2s,color .2s,box-shadow .2s;
  cursor:pointer;border:none;
}
.btn{background:var(--blue);color:#fff;box-shadow:0 6px 18px rgba(26,86,219,.25);}
.btn:hover{background:var(--blue-bright);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--navy);border:2px solid var(--line);}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue);}

/* Header / nav */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:32px;padding:18px 24px;}
.logo{font-family:'Sora',sans-serif;font-weight:800;font-size:1.25rem;color:var(--navy);display:flex;align-items:center;gap:8px;}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--blue),var(--blue-bright));color:#fff;
}
.nav-links{display:flex;gap:28px;list-style:none;margin-left:auto;}
.nav-links a{color:var(--ink);font-weight:500;font-size:.96rem;}
.nav-links a:hover{color:var(--blue);}
.nav-cta{padding:11px 20px;font-size:.92rem;}
.burger{display:none;background:transparent;border:none;font-size:1.5rem;cursor:pointer;color:var(--navy);}

/* Hero */
.hero{padding:80px 0 100px;background:linear-gradient(180deg,var(--sky) 0%,var(--bg) 100%);}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:60px;align-items:center;}
.hero-lead{font-size:1.15rem;color:var(--slate);margin:20px 0 32px;max-width:540px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* Hero chat mock */
.chat-mock{
  background:#fff;border-radius:24px;padding:22px;box-shadow:0 30px 60px rgba(10,31,68,.12);
  border:1px solid var(--line);max-width:420px;margin-left:auto;
}
.chat-head{display:flex;align-items:center;gap:10px;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:14px;}
.chat-dot{width:10px;height:10px;border-radius:50%;background:#2ecc71;}
.chat-head strong{font-family:'Sora',sans-serif;font-size:.95rem;}
.chat-head span{font-size:.8rem;color:var(--slate);margin-left:auto;}
.bubble{padding:11px 15px;border-radius:14px;font-size:.92rem;margin-bottom:10px;max-width:80%;line-height:1.45;}
.bubble.bot{background:var(--sky);color:var(--navy);border-bottom-left-radius:4px;}
.bubble.user{background:var(--blue);color:#fff;margin-left:auto;border-bottom-right-radius:4px;}
.typing{display:inline-flex;gap:4px;}
.typing span{width:6px;height:6px;border-radius:50%;background:var(--slate);animation:blink 1.2s infinite;}
.typing span:nth-child(2){animation-delay:.2s;}
.typing span:nth-child(3){animation-delay:.4s;}
@keyframes blink{0%,80%,100%{opacity:.3;}40%{opacity:1;}}

/* Channels */
.channels{padding:48px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-soft);}
.channels-title{text-align:center;color:var(--slate);font-size:.88rem;letter-spacing:.15em;text-transform:uppercase;margin-bottom:24px;font-weight:600;}
.channels-list{display:flex;justify-content:center;align-items:center;gap:48px;flex-wrap:wrap;}
.channels-list li{display:flex;align-items:center;gap:8px;color:var(--navy);font-weight:600;font-size:.98rem;list-style:none;}
.channels-list svg{width:24px;height:24px;color:var(--blue);}

/* Stats */
.stats{padding:var(--section-py) 0;}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;text-align:center;}
.stat-card{padding:32px 20px;border-radius:var(--radius);background:var(--bg-soft);border:1px solid var(--line);}
.num{
  font-family:'Sora',sans-serif;font-weight:800;font-size:clamp(2.6rem,5vw,3.6rem);
  color:var(--blue);display:block;line-height:1;margin-bottom:10px;
}
.stat-card p{color:var(--slate);font-weight:500;}

/* Services */
.services{padding:var(--section-py) 0;background:var(--bg-soft);}
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.service-card{
  background:#fff;border-radius:var(--radius);padding:32px;border:1px solid var(--line);
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.service-card:hover{transform:translateY(-6px);box-shadow:0 20px 40px rgba(10,31,68,.08);border-color:var(--sky);}
.service-icon{
  width:54px;height:54px;border-radius:14px;background:var(--sky);color:var(--blue);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.service-icon svg{width:28px;height:28px;}
.service-card p{color:var(--slate);}

/* Process */
.process{padding:var(--section-py) 0;}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.process-step{padding:28px;border-radius:var(--radius);border:1px solid var(--line);background:#fff;position:relative;}
.process-step .step-num{
  font-family:'Sora',sans-serif;font-weight:800;font-size:1rem;color:var(--blue);
  background:var(--sky);width:44px;height:44px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.process-step p{color:var(--slate);}

/* Testimonials */
.testimonials{padding:var(--section-py) 0;background:var(--navy);color:#fff;}
.testimonials h2{color:#fff;}
.testimonials .section-head p{color:rgba(255,255,255,.7);}
.testimonials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.testi-card{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius);padding:28px;
}
.stars{color:#fbbf24;letter-spacing:2px;margin-bottom:14px;font-size:1.05rem;}
.testi-card blockquote{font-size:1rem;line-height:1.65;margin-bottom:20px;color:rgba(255,255,255,.92);}
.testi-author{display:flex;align-items:center;gap:12px;}
.testi-avatar{
  width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--blue-bright));
  display:flex;align-items:center;justify-content:center;font-family:'Sora',sans-serif;font-weight:700;color:#fff;
}
.testi-name{font-weight:700;font-size:.95rem;}
.testi-role{color:rgba(255,255,255,.6);font-size:.85rem;}

/* Contact */
.contact{padding:var(--section-py) 0;background:linear-gradient(135deg,var(--blue) 0%,var(--blue-bright) 100%);color:#fff;}
.contact h2{color:#fff;}
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:60px;align-items:start;}
.contact-lead{color:rgba(255,255,255,.88);font-size:1.1rem;margin-bottom:24px;}
.contact-list{list-style:none;}
.contact-list li{margin-bottom:12px;color:rgba(255,255,255,.92);}
.contact-list strong{color:#fff;}
.contact-form{background:#fff;border-radius:var(--radius);padding:32px;color:var(--ink);box-shadow:0 30px 60px rgba(10,31,68,.25);}
.contact-form .row{margin-bottom:16px;}
.contact-form label{display:block;font-weight:600;margin-bottom:6px;font-size:.92rem;color:var(--navy);}
.contact-form input,.contact-form textarea{
  width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:10px;
  font-family:inherit;font-size:1rem;color:var(--ink);background:var(--bg-soft);
  transition:border-color .2s,background .2s;
}
.contact-form input:focus,.contact-form textarea:focus{border-color:var(--blue);background:#fff;outline:none;}
.contact-form textarea{min-height:130px;resize:vertical;}
.contact-form .hp{position:absolute;left:-9999px;opacity:0;pointer-events:none;}
.contact-form button{width:100%;}
.form-msg{padding:12px 16px;border-radius:10px;margin-bottom:20px;font-size:.95rem;}
.form-msg.ok{background:#d1fae5;color:#065f46;}
.form-msg.err{background:#fee2e2;color:#991b1b;}

/* Footer */
.site-footer{background:var(--navy);color:rgba(255,255,255,.7);padding:64px 0 24px;}
.site-footer .logo{color:#fff;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px;}
.foot-grid h4{font-family:'Sora',sans-serif;color:#fff;font-size:.98rem;margin-bottom:14px;}
.foot-grid ul{list-style:none;}
.foot-grid li{margin-bottom:8px;font-size:.92rem;}
.foot-grid a:hover{color:#fff;}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;text-align:center;font-size:.88rem;}

/* Scroll-reveal — used by main.js */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease;}
.reveal.show{opacity:1;transform:translateY(0);}

/* Responsive */
@media (max-width:920px){
  :root{--section-py:64px;}
  .hero{padding:48px 0 64px;}
  .hero-grid,.contact-grid,.foot-grid{grid-template-columns:1fr;gap:40px;}
  .stats-grid,.services-grid,.process-grid,.testimonials-grid{grid-template-columns:1fr;}
  .channels-list{gap:24px;}
  .nav-links{
    display:none;position:absolute;top:100%;left:0;right:0;background:#fff;
    flex-direction:column;padding:20px 24px;gap:16px;border-bottom:1px solid var(--line);
    box-shadow:0 10px 30px rgba(10,31,68,.08);
  }
  .nav-links.open{display:flex;}
  .nav-cta{display:none;}
  .burger{display:block;margin-left:auto;}
  .chat-mock{margin:0 auto;}
}