/* ============================================================
   Kavvo — site styles
   Premium dark theme. One accent: violet #8b7cf0 (the orb colour).
   ============================================================ */

:root{
  --bg:#08080f;
  --bg-2:#0c0c16;
  --panel:#11111d;
  --panel-2:#161624;
  --line:rgba(139,124,240,.16);
  --line-soft:rgba(255,255,255,.07);
  --text:#f0eef8;
  --muted:#a7a5bd;
  --muted-2:#7d7b93;
  --accent:#8b7cf0;
  --accent-2:#b3a8ff;
  --accent-deep:#6a58d8;
  --accent-glow:rgba(139,124,240,.35);
  --danger:#ff7a90;
  --ok:#5fd68b;
  --radius:18px;
  --radius-sm:12px;
  --max:1160px;
  --font:"Inter","SF Pro Display",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:"SF Mono","JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  --shadow:0 24px 60px rgba(0,0,0,.5);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  font-size:16.5px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:var(--accent);color:#0b0b14}
a{color:var(--accent-2);text-decoration:none}
a:hover{color:#cdc4ff}
img{max-width:100%}
.icon{width:22px;height:22px;flex:none;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;vertical-align:middle}

.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent-2);
  background:rgba(139,124,240,.1);
  border:1px solid var(--line);
  padding:6px 14px;border-radius:999px;
}
h1,h2,h3,h4{line-height:1.16;letter-spacing:-.02em;font-weight:700}
h1{font-size:clamp(2.5rem,5.4vw,4.1rem)}
h2{font-size:clamp(1.9rem,3.6vw,2.7rem)}
h3{font-size:1.28rem}
.lede{font-size:1.16rem;color:var(--muted);max-width:640px}
.center{text-align:center}
.center .lede{margin-left:auto;margin-right:auto}
.section-head{max-width:720px;margin-bottom:52px}
.section-head.center{margin-left:auto;margin-right:auto}
.section-head .lede{margin-top:16px}
.section-head h2{margin-top:18px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-weight:600;font-size:15.5px;
  padding:13px 26px;border-radius:999px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn .icon{width:18px;height:18px}
.btn-primary{
  background:linear-gradient(135deg,var(--accent) 0%,var(--accent-deep) 100%);
  color:#fff;
  box-shadow:0 10px 30px rgba(106,88,216,.4);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 38px rgba(106,88,216,.5);color:#fff}
.btn-ghost{
  background:rgba(255,255,255,.03);color:var(--text);
  border-color:var(--line-soft);
}
.btn-ghost:hover{border-color:var(--accent);color:#fff;transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14.5px}
.btn-block{width:100%;justify-content:center}

/* ---------- Header ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:100;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  background:rgba(8,8,15,.72);
  border-bottom:1px solid var(--line-soft);
}
.header-inner{display:flex;align-items:center;gap:28px;height:70px;max-width:var(--max);margin:0 auto;padding:0 24px}
.brand{display:flex;align-items:center;gap:11px;color:var(--text);font-weight:700;font-size:20px;letter-spacing:-.01em}
.brand:hover{color:var(--text)}
.brand .brand-orb{width:30px;height:30px}
.main-nav{display:flex;gap:6px;margin-left:8px}
.main-nav a{
  color:var(--muted);font-size:15px;font-weight:500;
  padding:8px 13px;border-radius:9px;transition:color .15s,background .15s;
}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.main-nav a.active{color:var(--text);background:rgba(139,124,240,.13)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;margin-left:auto;
  background:none;border:1px solid var(--line-soft);border-radius:10px;
  width:42px;height:42px;cursor:pointer;color:var(--text);
  align-items:center;justify-content:center;
}
.mobile-nav{
  display:none;flex-direction:column;gap:2px;
  padding:12px 24px 20px;border-top:1px solid var(--line-soft);
}
.mobile-nav a{color:var(--muted);padding:11px 10px;border-radius:9px;font-weight:500}
.mobile-nav a:hover,.mobile-nav a.active{color:var(--text);background:rgba(139,124,240,.12)}
.mobile-nav .btn{margin-top:10px;justify-content:center}
body.nav-open .mobile-nav{display:flex}
main{padding-top:70px}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:92px 0 84px;
  background:
    radial-gradient(900px 520px at 78% -10%,rgba(139,124,240,.17),transparent 60%),
    radial-gradient(700px 500px at 8% 110%,rgba(106,88,216,.12),transparent 60%),
    var(--bg);
  overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{margin:22px 0 20px}
.hero h1 .grad{
  background:linear-gradient(100deg,var(--accent-2),var(--accent) 55%,#e2dcff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero .lede{margin-bottom:34px}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap}
.hero-note{margin-top:20px;font-size:14px;color:var(--muted-2);display:flex;align-items:center;gap:8px}
.hero-note .icon{width:16px;height:16px;color:var(--ok)}

/* Living orb visual */
.orb-stage{position:relative;display:flex;align-items:center;justify-content:center;min-height:420px}
.orb-halo{
  position:absolute;width:430px;height:430px;border-radius:50%;
  background:radial-gradient(circle,rgba(139,124,240,.28) 0%,rgba(139,124,240,.07) 45%,transparent 68%);
  animation:halo-pulse 5.5s ease-in-out infinite;
}
.orb-ring-svg{width:min(360px,78vw);height:auto;position:relative;z-index:2;filter:drop-shadow(0 0 34px rgba(139,124,240,.45));animation:orb-breathe 5.5s ease-in-out infinite}
.orb-ring-svg .orb-arc{transform-origin:50% 50%;animation:orb-spin 26s linear infinite}
.orb-ring-svg .orb-core{animation:core-pulse 2.8s ease-in-out infinite;transform-origin:50% 50%}
.orb-chip{
  position:absolute;z-index:3;
  display:flex;align-items:center;gap:8px;
  background:rgba(17,17,29,.88);border:1px solid var(--line);
  padding:8px 14px;border-radius:999px;font-size:13px;font-weight:600;color:var(--muted);
  box-shadow:var(--shadow);
}
.orb-chip .dot{width:8px;height:8px;border-radius:50%;background:var(--muted-2)}
.orb-chip.on{color:var(--text);border-color:var(--accent)}
.orb-chip.on .dot{background:var(--accent);box-shadow:0 0 0 0 var(--accent-glow);animation:dot-ping 1.8s ease-out infinite}
.orb-chip.c1{top:6%;left:2%}
.orb-chip.c2{top:16%;right:0}
.orb-chip.c3{bottom:14%;right:4%}
.orb-chip.c4{bottom:4%;left:6%}
@keyframes orb-spin{to{transform:rotate(360deg)}}
@keyframes orb-breathe{0%,100%{transform:scale(1)}50%{transform:scale(1.035)}}
@keyframes core-pulse{0%,100%{opacity:.75}50%{opacity:1}}
@keyframes halo-pulse{0%,100%{transform:scale(1);opacity:.85}50%{transform:scale(1.07);opacity:1}}
@keyframes dot-ping{0%{box-shadow:0 0 0 0 rgba(139,124,240,.5)}70%{box-shadow:0 0 0 8px rgba(139,124,240,0)}100%{box-shadow:0 0 0 0 rgba(139,124,240,0)}}

/* ---------- Panels & cards ---------- */
.panel{background:linear-gradient(180deg,var(--panel-2),var(--panel));border:1px solid var(--line-soft);border-radius:var(--radius)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{
  background:linear-gradient(180deg,var(--panel-2),var(--panel));
  border:1px solid var(--line-soft);border-radius:var(--radius);
  padding:30px 28px;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:var(--shadow)}
.card .card-icon{
  width:48px;height:48px;border-radius:13px;
  background:rgba(139,124,240,.12);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--accent-2);
  margin-bottom:18px;
}
.card h3{margin-bottom:9px}
.card p{color:var(--muted);font-size:15.5px}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:step}
.step{position:relative;padding:32px 28px}
.step-num{
  font-family:var(--mono);font-size:13px;font-weight:700;color:var(--accent-2);
  border:1px solid var(--line);background:rgba(139,124,240,.1);
  width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.step h3{margin-bottom:9px}
.step p{color:var(--muted);font-size:15.5px}

/* ---------- Bands ---------- */
.band{
  border:1px solid var(--line-soft);border-radius:calc(var(--radius) + 8px);
  padding:56px;
  background:
    radial-gradient(640px 320px at 88% 0%,rgba(139,124,240,.16),transparent 60%),
    linear-gradient(180deg,var(--panel-2),var(--panel));
}
.band-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.band h2{margin:16px 0 14px}
.band p{color:var(--muted)}
.check-list{list-style:none;margin-top:22px;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;color:var(--muted);font-size:15.5px}
.check-list .icon{width:20px;height:20px;color:var(--ok);margin-top:3px}
.mini-flow{display:grid;gap:12px}
.mini-flow .flow-item{
  display:flex;gap:14px;align-items:flex-start;
  background:rgba(8,8,15,.55);border:1px solid var(--line-soft);
  border-radius:var(--radius-sm);padding:16px 18px;
}
.mini-flow .flow-item .icon{color:var(--accent-2);margin-top:2px}
.mini-flow .flow-item strong{display:block;font-size:15px}
.mini-flow .flow-item span{color:var(--muted);font-size:14px}

/* ---------- Pricing ---------- */
.price-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;max-width:880px;margin:0 auto}
.price-card{padding:38px 34px;position:relative}
.price-card.featured{border-color:var(--accent);box-shadow:0 18px 50px rgba(106,88,216,.25)}
.price-tag{font-size:2.4rem;font-weight:800;letter-spacing:-.03em;margin:10px 0 4px}
.price-tag small{font-size:1rem;color:var(--muted);font-weight:500}
.price-card .sub{color:var(--muted);font-size:15px;margin-bottom:22px}
.price-card ul{list-style:none;display:grid;gap:11px;margin-bottom:28px}
.price-card li{display:flex;gap:11px;color:var(--muted);font-size:15px}
.price-card li .icon{width:19px;height:19px;color:var(--accent-2);margin-top:3px}
.badge-soon{
  position:absolute;top:22px;right:22px;
  font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--accent-2);border:1px solid var(--line);background:rgba(139,124,240,.1);
  padding:5px 11px;border-radius:999px;
}

/* ---------- FAQ ---------- */
.faq{max-width:780px;margin:0 auto;display:grid;gap:12px}
.faq details{
  background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--radius-sm);
  padding:4px 22px;transition:border-color .2s;
}
.faq details[open]{border-color:var(--line)}
.faq summary{
  cursor:pointer;font-weight:600;font-size:16.5px;padding:16px 0;
  list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary .icon{color:var(--accent-2);transition:transform .25s}
.faq details[open] summary .icon{transform:rotate(45deg)}
.faq details p{color:var(--muted);padding:0 0 18px;font-size:15.5px}

/* ---------- Feature deep sections ---------- */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:52px 0;border-bottom:1px solid var(--line-soft)}
.feature-row:last-child{border-bottom:none}
.feature-row.flip .feature-copy{order:2}
.feature-copy h2{font-size:clamp(1.6rem,3vw,2.2rem);margin:14px 0 12px}
.feature-copy p{color:var(--muted);margin-bottom:14px}
.feature-visual{
  background:linear-gradient(180deg,var(--panel-2),var(--panel));
  border:1px solid var(--line-soft);border-radius:var(--radius);
  padding:30px;min-height:250px;
  display:flex;flex-direction:column;gap:12px;justify-content:center;
}
.chat-line{display:flex;gap:11px;align-items:flex-start;background:rgba(8,8,15,.55);border:1px solid var(--line-soft);border-radius:14px;padding:13px 15px;font-size:14.5px}
.chat-line .who{font-family:var(--mono);font-size:11px;font-weight:700;letter-spacing:.08em;padding:3px 8px;border-radius:6px;background:rgba(139,124,240,.14);color:var(--accent-2);margin-top:2px}
.chat-line.user .who{background:rgba(255,255,255,.08);color:var(--muted)}
.chat-line span{color:var(--muted)}
.chat-line strong{color:var(--text);font-weight:600}
.activity-line{display:flex;gap:11px;align-items:center;font-size:14.5px;color:var(--muted);background:rgba(8,8,15,.55);border:1px solid var(--line-soft);border-radius:12px;padding:12px 15px}
.activity-line .icon{width:18px;height:18px;color:var(--accent-2)}
.activity-line time{margin-left:auto;font-family:var(--mono);font-size:12px;color:var(--muted-2)}

/* ---------- Blog ---------- */
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.blog-card{display:flex;flex-direction:column;padding:0;overflow:hidden}
.blog-card .blog-art{
  height:170px;position:relative;
  background:radial-gradient(420px 200px at 70% 0%,rgba(139,124,240,.4),transparent 65%),linear-gradient(140deg,#1b1832,#0d0d18);
  display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--line-soft);
}
.blog-card .blog-art svg{width:92px;height:92px;opacity:.95}
.blog-card .blog-body{padding:26px}
.blog-meta{display:flex;gap:12px;align-items:center;font-size:13px;color:var(--muted-2);margin-bottom:12px;font-family:var(--mono)}
.blog-card h3{margin-bottom:9px}
.blog-card h3 a{color:var(--text)}
.blog-card h3 a:hover{color:var(--accent-2)}
.blog-card p{color:var(--muted);font-size:15px;margin-bottom:18px}
.read-more{font-weight:600;font-size:14.5px;display:inline-flex;gap:7px;align-items:center}
.read-more .icon{width:16px;height:16px}

.article{max-width:760px;margin:0 auto}
.article .blog-meta{margin:20px 0 8px}
.article h1{font-size:clamp(2rem,4.4vw,3rem);margin-bottom:14px}
.article .standfirst{font-size:1.15rem;color:var(--muted);margin-bottom:36px}
.article-body{font-size:17px}
.article-body p{color:#d8d6e6;margin-bottom:20px}
.article-body h2{font-size:1.55rem;margin:38px 0 14px}
.article-body ul{margin:0 0 20px 22px;color:#d8d6e6}
.article-body li{margin-bottom:9px}
.article-body strong{color:#fff}
.back-link{display:inline-flex;gap:8px;align-items:center;font-weight:600;font-size:15px}
.back-link .icon{width:17px;height:17px}

/* ---------- Legal / prose ---------- */
.prose{max-width:780px;margin:0 auto}
.prose h1{font-size:clamp(2rem,4vw,2.8rem);margin-bottom:10px}
.prose .updated{color:var(--muted-2);font-size:14.5px;margin-bottom:40px}
.prose h2{font-size:1.4rem;margin:34px 0 12px}
.prose p,.prose li{color:#cfcde0}
.prose p{margin-bottom:15px}
.prose ul{margin:0 0 15px 22px}
.prose li{margin-bottom:8px}

/* ---------- Auth ---------- */
.auth-shell{min-height:calc(100vh - 70px);display:flex;align-items:center;justify-content:center;padding:56px 24px}
.auth-card{width:100%;max-width:440px;padding:42px 40px}
.auth-card .brand{justify-content:center;margin-bottom:8px}
.auth-card h1{font-size:1.6rem;text-align:center;margin-bottom:8px}
.auth-card .sub{text-align:center;color:var(--muted);font-size:15px;margin-bottom:26px}
.field{margin-bottom:17px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:7px}
.field input{
  width:100%;padding:13px 15px;border-radius:11px;
  background:rgba(8,8,15,.6);border:1px solid var(--line-soft);
  color:var(--text);font-size:15.5px;font-family:var(--font);
  transition:border-color .15s,box-shadow .15s;
}
.field input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(139,124,240,.22)}
.form-error{
  display:none;background:rgba(255,122,144,.09);border:1px solid rgba(255,122,144,.35);
  color:#ffb3c0;border-radius:11px;padding:12px 15px;font-size:14.5px;margin-bottom:17px;
}
.form-error.show{display:block}
.form-ok{display:none;background:#eefbf3;border:1px solid #bfe8cd;color:#17663a;border-radius:10px;padding:10px 14px;font-size:14px;margin-bottom:16px}
.form-ok.show{display:block}
.form-note{
  margin-top:20px;background:rgba(139,124,240,.07);border:1px solid var(--line);
  border-radius:11px;padding:13px 15px;font-size:13.5px;color:var(--muted);
}
.auth-switch{text-align:center;margin-top:22px;color:var(--muted);font-size:15px}
.account-row{display:flex;justify-content:space-between;gap:18px;padding:15px 0;border-bottom:1px solid var(--line-soft);font-size:15.5px}
.account-row:last-of-type{border-bottom:none}
.account-row .k{color:var(--muted)}
.account-row .v{font-weight:600;text-align:right;word-break:break-all}

/* ---------- Download ---------- */
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.dl-card{display:flex;flex-direction:column}
.dl-card p{flex:1}
.dl-card .btn{margin-top:22px;justify-content:center}

/* ---------- CTA strip ---------- */
.cta-strip{text-align:center;padding:72px 32px}
.cta-strip h2{margin-bottom:14px}
.cta-strip p{color:var(--muted);max-width:520px;margin:0 auto 28px}
.cta-strip .hero-ctas{justify-content:center}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line-soft);background:var(--bg-2);margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:64px 0 44px}
.footer-brand p{color:var(--muted);font-size:14.5px;margin-top:14px;max-width:300px}
.footer-col h4{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted-2);margin-bottom:17px}
.footer-col a{display:block;color:var(--muted);font-size:15px;padding:5px 0}
.footer-col a:hover{color:var(--text)}
.footer-bottom{
  border-top:1px solid var(--line-soft);padding:22px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--muted-2);font-size:13.5px;
}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- 404 ---------- */
.notfound{min-height:calc(100vh - 70px);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:60px 24px;gap:8px}
.notfound svg{width:120px;height:120px;margin-bottom:18px;opacity:.9}
.notfound h1{font-size:2.2rem;margin-bottom:8px}
.notfound p{color:var(--muted);margin-bottom:26px}

/* ---------- Responsive ---------- */
@media (max-width:1020px){
  .grid-3,.blog-grid,.dl-grid,.steps{grid-template-columns:repeat(2,1fr)}
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .orb-stage{min-height:360px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .section{padding:64px 0}
  .main-nav{display:none}
  .header-actions .btn-ghost{display:none}
  .nav-toggle{display:flex}
  .grid-3,.grid-2,.blog-grid,.dl-grid,.steps,.price-grid,.band-grid,.feature-row{grid-template-columns:1fr}
  .feature-row.flip .feature-copy{order:0}
  .band{padding:36px 26px}
  .hero{padding:56px 0 60px}
  .hero-ctas .btn{flex:1;justify-content:center}
  .orb-chip.c1{left:0}
  .orb-chip.c4{left:2%}
  .auth-card{padding:34px 26px}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding:48px 0 34px}
  .footer-bottom{justify-content:center;text-align:center}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}