/* ID Księgowość — landing styles (spójne z ekosystemem Silers / idfaktura-landing) */
:root, [data-theme="dark"]{
  --bg:#0b0f17;
  --bg-2:#10151f;
  --surface:#151b27;
  --border:#22293a;
  --text:#e8ecf3;
  --text-muted:#8a93a6;
  --accent:#6366f1;
  --accent-2:#a855f7;
  --gradient:linear-gradient(135deg,#6366f1 0%,#a855f7 50%,#ec4899 100%);
  --success:#22c55e;
  --warning:#f59e0b;
  --danger:#ef4444;
  --max:1200px;
  --nav-bg:rgba(11,15,23,.85);
  --code-bg:#0d1219;
}
[data-theme="light"]{
  --bg:#fafbfc;
  --bg-2:#f3f5f9;
  --surface:#ffffff;
  --border:#e3e7ee;
  --text:#0d1219;
  --text-muted:#5b6478;
  --accent:#6366f1;
  --accent-2:#a855f7;
  --nav-bg:rgba(255,255,255,.92);
  --code-bg:#f3f5f9;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--text);line-height:1.6;
  font-size:16px;-webkit-font-smoothing:antialiased;
}
a{color:var(--accent);text-decoration:none;transition:opacity .15s}
a:hover{opacity:.8}
.container{max-width:var(--max);margin:0 auto;padding:0 24px}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;border-radius:10px;font-weight:600;font-size:14px;
  border:none;cursor:pointer;transition:transform .15s,box-shadow .15s;
}
.btn-primary{background:var(--gradient);color:#fff;box-shadow:0 4px 20px rgba(99,102,241,.3)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 28px rgba(99,102,241,.5);opacity:1}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--border)}
.btn-ghost:hover{background:var(--surface);opacity:1}
.btn-lg{padding:16px 32px;font-size:16px;border-radius:12px}

/* NAV */
.nav{
  position:sticky;top:0;z-index:100;backdrop-filter:blur(12px);
  background:var(--nav-bg);border-bottom:1px solid var(--border);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;max-width:var(--max);margin:0 auto}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;transition:opacity .15s;color:var(--text)}
.logo-mark{
  width:32px;height:32px;border-radius:8px;background:var(--gradient);
  display:grid;place-items:center;color:#fff;font-weight:900;
  box-shadow:0 4px 12px rgba(99,102,241,.3);
  transition:transform .25s cubic-bezier(.34,1.56,.64,1),box-shadow .25s ease-out;
}
.logo:hover .logo-mark{transform:rotate(-8deg) scale(1.05);box-shadow:0 6px 18px rgba(99,102,241,.45)}
.nav-links{display:flex;gap:24px;align-items:center}
.nav-links a{color:var(--text-muted);font-size:14px;font-weight:500}
.nav-links a:hover{color:var(--text);opacity:1}
@media (max-width:860px){.nav-links a:not(.nav-login){display:none}}

/* HERO */
.hero{padding:80px 0 100px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;top:-50%;left:50%;transform:translateX(-50%);
  width:900px;height:900px;background:radial-gradient(circle,rgba(99,102,241,.15) 0%,transparent 60%);
  pointer-events:none;animation:blobPulse 8s ease-in-out infinite;
}
.hero::after{
  content:"";position:absolute;top:10%;right:-150px;width:500px;height:500px;
  background:radial-gradient(circle,rgba(168,85,247,.12) 0%,transparent 60%);
  pointer-events:none;animation:blobPulse2 10s ease-in-out infinite;
}
@keyframes blobPulse{
  0%,100%{transform:translateX(-50%) scale(1);opacity:.8}
  50%{transform:translateX(-50%) scale(1.15);opacity:1}
}
@keyframes blobPulse2{
  0%,100%{transform:scale(1) translate(0,0);opacity:.6}
  50%{transform:scale(1.2) translate(-30px,20px);opacity:1}
}
@media (prefers-reduced-motion:reduce){
  .hero::before,.hero::after{animation:none}
}
.hero-content{position:relative;text-align:center;max-width:860px;margin:0 auto}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;
  background:rgba(99,102,241,.1);border:1px solid rgba(99,102,241,.3);
  border-radius:999px;font-size:13px;font-weight:600;color:var(--accent);
  margin-bottom:24px;
}
.badge svg{width:14px;height:14px;stroke-width:2.2}
.hero h1{
  font-size:clamp(36px,6vw,64px);font-weight:900;line-height:1.05;letter-spacing:-.03em;
  margin-bottom:20px;
}
.hero h1 .grad{background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .promise{
  font-size:clamp(18px,2.6vw,23px);color:var(--text);font-weight:600;line-height:1.45;
  max-width:760px;margin:0 auto 18px;letter-spacing:-.01em;
}
.hero p.sub{font-size:17px;color:var(--text-muted);margin-bottom:36px;max-width:680px;margin-left:auto;margin-right:auto}
.hero-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.hero-meta{margin-top:24px;font-size:13px;color:var(--text-muted)}

/* SECTION */
section{padding:80px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 56px}
.section-head .eyebrow{
  display:inline-block;padding:4px 12px;background:rgba(168,85,247,.1);color:var(--accent-2);
  border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  margin-bottom:14px;
}
.section-head h2{font-size:clamp(28px,4vw,40px);font-weight:800;letter-spacing:-.02em;margin-bottom:14px}
.section-head p{color:var(--text-muted);font-size:17px}

/* FEATURES */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media (max-width:920px){.features{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.features{grid-template-columns:1fr}}
.features.cols-2{grid-template-columns:repeat(2,1fr);max-width:900px;margin:0 auto}
@media (max-width:600px){.features.cols-2{grid-template-columns:1fr}}
.feature{
  background:var(--surface);border:1px solid var(--border);border-radius:14px;
  padding:28px;position:relative;overflow:hidden;
  transition:transform .25s ease-out,border-color .25s ease-out,box-shadow .25s ease-out;
}
.feature::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(99,102,241,.08) 0%,rgba(168,85,247,.08) 100%);
  opacity:0;transition:opacity .25s ease-out;pointer-events:none;
}
.feature:hover{
  transform:translateY(-6px);border-color:rgba(99,102,241,.5);
  box-shadow:0 12px 40px rgba(99,102,241,.18);
}
.feature:hover::before{opacity:1}
.feature>*{position:relative;z-index:1}
.feature-icon{
  width:46px;height:46px;border-radius:10px;background:var(--gradient);
  display:grid;place-items:center;margin-bottom:18px;color:#fff;
  transition:transform .3s cubic-bezier(.34,1.56,.64,1),box-shadow .25s ease-out;
}
.feature:hover .feature-icon{
  transform:scale(1.1) rotate(-6deg);
  box-shadow:0 8px 24px rgba(99,102,241,.45);
}
.feature-icon svg{width:22px;height:22px;stroke-width:2}
.feature h3{font-size:18px;font-weight:700;margin-bottom:10px}
.feature p{color:var(--text-muted);font-size:14px;line-height:1.65}

/* STEPS (portal klienta) */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative}
@media (max-width:920px){.steps{grid-template-columns:1fr 1fr}}
@media (max-width:540px){.steps{grid-template-columns:1fr}}
.step{
  background:var(--surface);border:1px solid var(--border);border-radius:14px;
  padding:24px;position:relative;
  transition:transform .25s ease-out,border-color .25s ease-out;
}
.step:hover{transform:translateY(-4px);border-color:rgba(99,102,241,.4)}
.step:hover .step-icon{transform:scale(1.1) rotate(-4deg)}
.step:hover .step-num{transform:scale(1.05)}
.step-num{
  position:absolute;top:-14px;left:24px;width:32px;height:32px;border-radius:8px;
  background:var(--gradient);color:#fff;font-weight:800;font-size:14px;
  display:grid;place-items:center;
  box-shadow:0 4px 12px rgba(99,102,241,.3);
  transition:transform .25s ease-out;
}
.step-icon{
  margin:8px 0 14px;color:var(--accent);width:32px;height:32px;display:grid;place-items:center;
  transition:transform .3s cubic-bezier(.34,1.56,.64,1);
}
.step-icon svg{width:30px;height:30px;stroke-width:1.8}
.step h3{font-size:16px;font-weight:700;margin-bottom:8px}
.step p{font-size:13px;color:var(--text-muted);line-height:1.6}

/* MOCK — podgląd ekranu "Czy mogę zamknąć miesiąc?" */
.mock-wrap{max-width:860px;margin:48px auto 0}
.mock{
  background:var(--surface);border:1px solid var(--border);border-radius:14px;overflow:hidden;
  box-shadow:0 20px 60px rgba(0,0,0,.25);
}
.mock-frame{
  background:var(--code-bg);padding:10px 14px;border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:6px;
}
.mock-dot{width:10px;height:10px;border-radius:50%}
.mock-dot.r{background:#ff5f57}
.mock-dot.y{background:#ffbd2e}
.mock-dot.g{background:#28c840}
.mock-url{
  margin-left:14px;background:var(--bg);padding:5px 14px;border-radius:6px;
  font-size:11px;color:var(--text-muted);font-family:monospace;flex:1;text-align:center;
  border:1px solid var(--border);
}
.mock-body{padding:22px}
.mock-title{font-size:15px;font-weight:700;margin-bottom:14px}
.mock-row{
  display:flex;align-items:flex-start;gap:12px;padding:11px 14px;border:1px solid var(--border);
  border-radius:10px;margin-bottom:10px;background:var(--bg-2);
}
.mock-row:last-child{margin-bottom:0}
.mock-status{width:10px;height:10px;border-radius:50%;flex-shrink:0;margin-top:6px}
.mock-status.ok{background:var(--success);box-shadow:0 0 0 4px rgba(34,197,94,.15)}
.mock-status.warn{background:var(--warning);box-shadow:0 0 0 4px rgba(245,158,11,.15)}
.mock-status.wait{background:var(--accent);box-shadow:0 0 0 4px rgba(99,102,241,.15)}
.mock-row b{font-size:14px;display:block}
.mock-row span{font-size:13px;color:var(--text-muted);line-height:1.5}
.mock-tag{
  display:inline-block;padding:2px 9px;border-radius:999px;font-size:11px;font-weight:700;
  margin-left:8px;vertical-align:1px;
}
.mock-tag.rule{background:rgba(34,197,94,.12);color:var(--success)}
.mock-tag.pattern{background:rgba(99,102,241,.12);color:var(--accent)}
.mock-tag.ai{background:rgba(168,85,247,.14);color:var(--accent-2)}
.mock-note{text-align:center;color:var(--text-muted);font-size:12px;margin-top:14px}

/* TRUST list */
.trust-list{max-width:820px;margin:0 auto;display:grid;gap:14px}
.trust-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:20px 22px;
}
.trust-item svg{width:22px;height:22px;stroke-width:2;color:var(--success);flex-shrink:0;margin-top:2px}
.trust-item b{display:block;font-size:15px;margin-bottom:3px}
.trust-item p{font-size:14px;color:var(--text-muted);line-height:1.6}

/* ECOSYSTEM cards */
.eco{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;max-width:1000px;margin:0 auto}
@media (max-width:920px){.eco{grid-template-columns:1fr}}
.eco-card{
  background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:26px;
  transition:transform .25s ease-out,border-color .25s ease-out;
}
.eco-card:hover{transform:translateY(-4px);border-color:rgba(99,102,241,.5)}
.eco-card .logo{margin-bottom:14px;font-size:16px}
.eco-card p{font-size:14px;color:var(--text-muted);line-height:1.65;margin-bottom:12px}
.eco-card a.eco-link{font-size:13px;font-weight:600}

/* CTA STRIP */
.cta-strip{
  background:var(--gradient);border-radius:24px;padding:56px 40px;text-align:center;
  margin:40px 0;
}
.cta-strip h2{color:#fff;font-size:32px;font-weight:800;letter-spacing:-.02em;margin-bottom:12px}
.cta-strip p{color:rgba(255,255,255,.92);margin-bottom:24px;font-size:16px;max-width:640px;margin-left:auto;margin-right:auto}
.cta-strip .btn{background:#fff;color:#6366f1;font-weight:700}
.cta-strip .btn:hover{background:#f4f4ff}

/* CONTACT */
.contact-box{
  max-width:640px;margin:0 auto;text-align:center;
  background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:40px 32px;
}
.contact-box p{color:var(--text-muted);font-size:15px;margin-bottom:22px}
.contact-lines{display:grid;gap:10px;margin-top:26px;font-size:15px}
.contact-lines a{font-weight:600}
.contact-lines .muted{color:var(--text-muted);font-size:13px}

/* FOOTER */
footer{
  background:var(--bg-2);border-top:1px solid var(--border);
  padding:50px 0 30px;margin-top:80px;font-size:14px;
}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:36px}
@media (max-width:760px){.footer-grid{grid-template-columns:1fr 1fr}}
.footer-brand p{color:var(--text-muted);margin-top:10px;line-height:1.6}
.footer-col h4{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;margin-bottom:14px;color:var(--text-muted)}
.footer-col a{display:block;color:var(--text);padding:5px 0;font-size:14px}
.footer-col a:hover{color:var(--accent);opacity:1}
.footer-bottom{
  border-top:1px solid var(--border);padding-top:24px;
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;
  color:var(--text-muted);font-size:13px;
}

/* ON-SCROLL FADE-IN */
.feature, .step, .trust-item, .eco-card{
  opacity:0;transform:translateY(24px);
  transition:opacity .55s cubic-bezier(.16,1,.3,1),transform .55s cubic-bezier(.16,1,.3,1),
             border-color .25s ease-out,box-shadow .25s ease-out;
}
.feature.in-view,.step.in-view,.trust-item.in-view,.eco-card.in-view{
  opacity:1;transform:translateY(0);
}
.in-view-1{transition-delay:.05s}
.in-view-2{transition-delay:.1s}
.in-view-3{transition-delay:.15s}
.in-view-4{transition-delay:.2s}
.in-view-5{transition-delay:.25s}
.in-view-6{transition-delay:.3s}
.in-view-7{transition-delay:.35s}
.in-view-8{transition-delay:.4s}
.in-view-9{transition-delay:.45s}
@media (prefers-reduced-motion:reduce){
  .feature,.step,.trust-item,.eco-card{opacity:1;transform:none;transition:none}
}

/* THEME TOGGLE + NAV LOGIN */
.nav-login{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 18px;border-radius:9px;
  background:var(--gradient);color:#fff !important;
  font-weight:600;font-size:14px;
  box-shadow:0 4px 14px rgba(99,102,241,.3);
  transition:transform .15s,box-shadow .15s,opacity .15s;
}
.nav-login:hover{
  transform:translateY(-1px);
  box-shadow:0 6px 20px rgba(99,102,241,.5);
  opacity:1;
}
.nav-login svg{width:16px;height:16px;stroke-width:2.2;color:#fff}

.theme-toggle{
  background:transparent;border:1px solid var(--border);border-radius:8px;
  width:36px;height:36px;display:grid;place-items:center;cursor:pointer;color:var(--text-muted);
  transition:color .2s,border-color .2s,transform .2s;
}
.theme-toggle:hover{color:var(--accent);border-color:var(--accent);transform:scale(1.05)}
.theme-toggle svg{width:18px;height:18px;stroke-width:2}
.theme-toggle .icon-sun{display:none}
.theme-toggle .icon-moon{display:block}
[data-theme="light"] .theme-toggle .icon-sun{display:block}
[data-theme="light"] .theme-toggle .icon-moon{display:none}