/**
 * LaevZanjir — Marketing pages stylesheet.
 *
 * Shared by features / pricing / about / contact / faq / blog / case-studies.
 * Light + dark mode via prefers-color-scheme.
 * Brand: deep blue (#1e40af) + sky (#3b82f6) on neutral surfaces.
 */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

html{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
  scroll-behavior:smooth;
}

body{
  min-height:100vh;
  background:#f8fafc;
  color:#1e293b;
  line-height:1.6;
  display:flex;
  flex-direction:column;
}

@media (prefers-color-scheme: dark){
  body{ background:#0f172a; color:#f1f5f9; }
}

a{ color:#1e40af; text-decoration:none; }
@media (prefers-color-scheme: dark){ a{ color:#93c5fd; } }
a:hover{ text-decoration:underline; }

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

/* ---------- Header ---------- */

.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(255,255,255,0.85);
  backdrop-filter:blur(12px);
  border-bottom:1px solid #e2e8f0;
}
@media (prefers-color-scheme: dark){
  .site-header{
    background:rgba(15,23,42,0.85);
    border-bottom-color:#1e293b;
  }
}

.header-inner{
  max-width:1200px;
  margin:0 auto;
  padding:1rem 1.5rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
}

.brand{
  display:flex;
  align-items:center;
  gap:0.625rem;
  font-weight:700;
  font-size:1.125rem;
  color:#1e293b;
  text-decoration:none;
}
@media (prefers-color-scheme: dark){ .brand{ color:#f1f5f9; } }
.brand:hover{ text-decoration:none; }

.brand-mark{
  width:36px;
  height:36px;
  border-radius:10px;
  background:linear-gradient(135deg,#1e40af,#3b82f6);
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 4px 12px rgba(30,64,175,0.25);
}
.brand-mark svg{ width:20px; height:20px; }

.nav{
  display:flex;
  align-items:center;
  gap:0.5rem;
}

.nav-links{
  display:none;
  gap:0.25rem;
  align-items:center;
}

@media (min-width: 900px){
  .nav-links{ display:flex; }
}

.nav-link{
  color:#475569;
  text-decoration:none;
  padding:0.5rem 0.875rem;
  font-size:0.9375rem;
  font-weight:500;
  border-radius:8px;
  transition:background .15s,color .15s;
}
@media (prefers-color-scheme: dark){ .nav-link{ color:#cbd5e1; } }
.nav-link:hover{
  background:#eff6ff;
  color:#1e40af;
  text-decoration:none;
}
@media (prefers-color-scheme: dark){
  .nav-link:hover{ background:rgba(30,64,175,0.15); color:#93c5fd; }
}
.nav-link.active{ color:#1e40af; background:#eff6ff; }
@media (prefers-color-scheme: dark){
  .nav-link.active{ color:#93c5fd; background:rgba(30,64,175,0.2); }
}

.nav-cta{
  display:flex;
  align-items:center;
  gap:0.5rem;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:0.5rem;
  padding:0.625rem 1.125rem;
  font-size:0.9375rem;
  font-weight:600;
  border-radius:10px;
  text-decoration:none;
  border:none;
  cursor:pointer;
  transition:transform .12s,box-shadow .12s,background .15s;
  font-family:inherit;
}
.btn:hover{ text-decoration:none; transform:translateY(-1px); }
.btn:active{ transform:translateY(0); }

.btn-primary{
  background:linear-gradient(135deg,#1e40af,#3b82f6);
  color:#fff;
  box-shadow:0 4px 12px rgba(30,64,175,0.25);
}
.btn-primary:hover{
  box-shadow:0 8px 20px rgba(30,64,175,0.35);
  color:#fff;
}

.btn-ghost{
  background:transparent;
  color:#1e40af;
  border:1px solid #e2e8f0;
}
@media (prefers-color-scheme: dark){
  .btn-ghost{ color:#93c5fd; border-color:#334155; }
}
.btn-ghost:hover{ background:#eff6ff; }
@media (prefers-color-scheme: dark){
  .btn-ghost:hover{ background:rgba(30,64,175,0.15); }
}

.btn-lg{ padding:0.875rem 1.5rem; font-size:1rem; }

.lang-switch{
  background:transparent;
  border:1px solid #e2e8f0;
  border-radius:8px;
  padding:0.375rem 0.625rem;
  font-size:0.875rem;
  font-weight:500;
  color:#475569;
  cursor:pointer;
  font-family:inherit;
}
@media (prefers-color-scheme: dark){
  .lang-switch{ border-color:#334155; color:#cbd5e1; background:#0f172a; }
}

/* ---------- Main / sections ---------- */

main{
  flex:1;
  max-width:1200px;
  margin:0 auto;
  padding:2rem 1.5rem 4rem;
  width:100%;
}

.hero{
  text-align:center;
  padding:3rem 0 2.5rem;
}

.hero h1{
  font-size:clamp(2rem,5vw,3.25rem);
  font-weight:800;
  line-height:1.15;
  letter-spacing:-0.025em;
  margin-bottom:1rem;
  background:linear-gradient(135deg,#1e40af,#3b82f6);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

.hero .subtitle{
  font-size:clamp(1rem,2vw,1.25rem);
  color:#64748b;
  max-width:680px;
  margin:0 auto 1.75rem;
}
@media (prefers-color-scheme: dark){ .hero .subtitle{ color:#94a3b8; } }

.section{
  margin:3rem 0;
}

.section-title{
  font-size:clamp(1.5rem,3vw,2rem);
  font-weight:700;
  margin-bottom:0.5rem;
  letter-spacing:-0.02em;
}

.section-subtitle{
  color:#64748b;
  margin-bottom:1.75rem;
}
@media (prefers-color-scheme: dark){ .section-subtitle{ color:#94a3b8; } }

.card{
  background:#fff;
  border:1px solid #e2e8f0;
  border-radius:16px;
  padding:1.5rem;
  box-shadow:0 1px 2px rgba(15,23,42,0.04);
  transition:transform .15s,box-shadow .15s,border-color .15s;
}
@media (prefers-color-scheme: dark){
  .card{ background:#1e293b; border-color:#334155; box-shadow:none; }
}
.card:hover{
  transform:translateY(-2px);
  box-shadow:0 10px 24px rgba(15,23,42,0.08);
  border-color:#bfdbfe;
}
@media (prefers-color-scheme: dark){
  .card:hover{ border-color:#3b82f6; box-shadow:0 10px 24px rgba(0,0,0,0.35); }
}

.grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:1.25rem;
}

.feature-card{
  display:flex;
  flex-direction:column;
  gap:0.625rem;
}

.feature-icon{
  width:48px;
  height:48px;
  border-radius:12px;
  background:linear-gradient(135deg,#dbeafe,#bfdbfe);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.5rem;
}
@media (prefers-color-scheme: dark){
  .feature-icon{ background:linear-gradient(135deg,rgba(30,64,175,0.3),rgba(59,130,246,0.3)); }
}

.feature-card h3{
  font-size:1.125rem;
  font-weight:600;
  margin-bottom:0.25rem;
}

.feature-card p{
  color:#64748b;
  font-size:0.9375rem;
  line-height:1.55;
}
@media (prefers-color-scheme: dark){ .feature-card p{ color:#94a3b8; } }

/* ---------- Pricing table ---------- */

.price-table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  background:#fff;
  border:1px solid #e2e8f0;
  border-radius:16px;
  overflow:hidden;
}
@media (prefers-color-scheme: dark){
  .price-table{ background:#1e293b; border-color:#334155; }
}

.price-table th,
.price-table td{
  padding:1rem 1.25rem;
  text-align:left;
  border-bottom:1px solid #e2e8f0;
}
@media (prefers-color-scheme: dark){
  .price-table th, .price-table td{ border-bottom-color:#334155; }
}

.price-table thead{ background:#f8fafc; }
@media (prefers-color-scheme: dark){ .price-table thead{ background:#0f172a; } }

.price-table th{ font-weight:600; color:#475569; font-size:0.875rem; text-transform:uppercase; letter-spacing:0.04em; }
@media (prefers-color-scheme: dark){ .price-table th{ color:#cbd5e1; } }

.price-table tr:last-child td{ border-bottom:none; }

.price-table .fee{
  font-weight:700;
  color:#1e40af;
  font-size:1.125rem;
}
@media (prefers-color-scheme: dark){ .price-table .fee{ color:#93c5fd; } }

/* ---------- FAQ ---------- */

.faq-item{
  background:#fff;
  border:1px solid #e2e8f0;
  border-radius:12px;
  padding:0;
  margin-bottom:0.75rem;
  overflow:hidden;
}
@media (prefers-color-scheme: dark){
  .faq-item{ background:#1e293b; border-color:#334155; }
}

.faq-item summary{
  padding:1rem 1.25rem;
  font-weight:600;
  cursor:pointer;
  list-style:none;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:0.75rem;
}
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item summary::after{
  content:'+';
  font-size:1.25rem;
  color:#64748b;
  font-weight:400;
  flex-shrink:0;
}
.faq-item[open] summary::after{ content:'−'; color:#1e40af; }
@media (prefers-color-scheme: dark){
  .faq-item[open] summary::after{ color:#93c5fd; }
}

.faq-item .answer{
  padding:0 1.25rem 1.25rem;
  color:#64748b;
  line-height:1.6;
}
@media (prefers-color-scheme: dark){ .faq-item .answer{ color:#cbd5e1; } }

/* ---------- Forms ---------- */

.form{
  max-width:560px;
  display:flex;
  flex-direction:column;
  gap:1rem;
}

.form-group{ display:flex; flex-direction:column; gap:0.375rem; }

.form-label{
  font-size:0.875rem;
  font-weight:500;
  color:#475569;
}
@media (prefers-color-scheme: dark){ .form-label{ color:#cbd5e1; } }

.form-input,
.form-textarea{
  padding:0.75rem 0.875rem;
  border:1px solid #e2e8f0;
  border-radius:10px;
  background:#fff;
  font-size:0.9375rem;
  color:#1e293b;
  font-family:inherit;
  transition:border-color .15s,box-shadow .15s;
}
@media (prefers-color-scheme: dark){
  .form-input,
  .form-textarea{
    background:#1e293b;
    border-color:#334155;
    color:#f1f5f9;
  }
}
.form-input:focus,
.form-textarea:focus{
  outline:none;
  border-color:#3b82f6;
  box-shadow:0 0 0 4px rgba(59,130,246,0.15);
}

.form-textarea{ resize:vertical; min-height:120px; }

.form-status{
  padding:0.75rem 1rem;
  border-radius:10px;
  font-size:0.9375rem;
  display:none;
}
.form-status.ok{
  display:block;
  background:#dcfce7;
  color:#15803d;
  border:1px solid #86efac;
}
.form-status.err{
  display:block;
  background:#fee2e2;
  color:#b91c1c;
  border:1px solid #fca5a5;
}
@media (prefers-color-scheme: dark){
  .form-status.ok{ background:rgba(21,128,61,0.15); color:#86efac; border-color:#16a34a; }
  .form-status.err{ background:rgba(185,28,28,0.15); color:#fca5a5; border-color:#dc2626; }
}

/* ---------- Two-col layout ---------- */

.cols-2{
  display:grid;
  grid-template-columns:1fr;
  gap:2.5rem;
  align-items:start;
}
@media (min-width: 820px){
  .cols-2{ grid-template-columns:1.2fr 1fr; }
}

.info-block{
  display:flex;
  flex-direction:column;
  gap:1rem;
}

.info-row{
  display:flex;
  flex-direction:column;
  gap:0.125rem;
}
.info-row .label{
  font-size:0.8125rem;
  color:#64748b;
  text-transform:uppercase;
  letter-spacing:0.04em;
  font-weight:600;
}
@media (prefers-color-scheme: dark){ .info-row .label{ color:#94a3b8; } }
.info-row .value{ font-size:1rem; }

/* ---------- Callout ---------- */

.callout{
  background:linear-gradient(135deg,#eff6ff,#dbeafe);
  border:1px solid #bfdbfe;
  border-radius:16px;
  padding:1.5rem;
}
@media (prefers-color-scheme: dark){
  .callout{
    background:linear-gradient(135deg,rgba(30,64,175,0.2),rgba(59,130,246,0.15));
    border-color:rgba(59,130,246,0.4);
  }
}

.callout .title{ font-weight:700; margin-bottom:0.5rem; }
.callout .code{
  font-family:'JetBrains Mono','SF Mono',ui-monospace,monospace;
  background:rgba(255,255,255,0.7);
  padding:0.375rem 0.625rem;
  border-radius:8px;
  display:inline-block;
  font-size:0.9375rem;
}
@media (prefers-color-scheme: dark){
  .callout .code{ background:rgba(0,0,0,0.3); }
}

/* ---------- CTA section ---------- */

.cta-section{
  text-align:center;
  padding:3rem 1.5rem;
  background:linear-gradient(135deg,#1e40af,#3b82f6);
  border-radius:20px;
  color:#fff;
  margin:3rem 0;
}
.cta-section h2{
  font-size:clamp(1.5rem,3vw,2rem);
  font-weight:700;
  margin-bottom:0.75rem;
  color:#fff;
}
.cta-section p{
  color:rgba(255,255,255,0.9);
  margin-bottom:1.5rem;
  max-width:540px;
  margin-left:auto;
  margin-right:auto;
}
.cta-section .btn-primary{
  background:#fff;
  color:#1e40af;
  box-shadow:0 6px 20px rgba(0,0,0,0.18);
}
.cta-section .btn-primary:hover{
  background:#f8fafc;
}

/* ---------- Footer ---------- */

.site-footer{
  background:#f1f5f9;
  border-top:1px solid #e2e8f0;
  padding:2.5rem 1.5rem 1.5rem;
  margin-top:auto;
}
@media (prefers-color-scheme: dark){
  .site-footer{ background:#0f172a; border-top-color:#1e293b; }
}

.footer-inner{
  max-width:1200px;
  margin:0 auto;
}

.footer-grid{
  display:grid;
  grid-template-columns:1.5fr repeat(3,1fr);
  gap:2rem;
  margin-bottom:2rem;
}
@media (max-width: 720px){
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .footer-grid .footer-brand{ grid-column:1 / -1; }
}

.footer-brand .brand{ margin-bottom:0.75rem; }
.footer-brand p{
  color:#64748b;
  font-size:0.875rem;
  max-width:280px;
}
@media (prefers-color-scheme: dark){ .footer-brand p{ color:#94a3b8; } }

.footer-col h4{
  font-size:0.8125rem;
  text-transform:uppercase;
  letter-spacing:0.04em;
  font-weight:600;
  color:#475569;
  margin-bottom:0.75rem;
}
@media (prefers-color-scheme: dark){ .footer-col h4{ color:#cbd5e1; } }

.footer-col ul{
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:0.5rem;
}
.footer-col a{
  color:#64748b;
  font-size:0.9375rem;
  text-decoration:none;
}
@media (prefers-color-scheme: dark){ .footer-col a{ color:#94a3b8; } }
.footer-col a:hover{ color:#1e40af; }
@media (prefers-color-scheme: dark){ .footer-col a:hover{ color:#93c5fd; } }

.footer-bottom{
  padding-top:1.5rem;
  border-top:1px solid #e2e8f0;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  align-items:center;
  gap:0.75rem;
  font-size:0.875rem;
  color:#94a3b8;
}
@media (prefers-color-scheme: dark){ .footer-bottom{ border-top-color:#1e293b; } }

.footer-bottom .lang-switch{ margin-left:auto; }

/* ---------- Utility ---------- */

.hidden{ display:none !important; }
.text-center{ text-align:center; }
.mt-4{ margin-top:2rem; }
.mb-4{ margin-bottom:2rem; }
.flex-row{ display:flex; gap:1rem; flex-wrap:wrap; justify-content:center; }

.tag{
  display:inline-block;
  background:#dbeafe;
  color:#1e40af;
  padding:0.25rem 0.625rem;
  border-radius:9999px;
  font-size:0.8125rem;
  font-weight:600;
}
@media (prefers-color-scheme: dark){
  .tag{ background:rgba(30,64,175,0.3); color:#bfdbfe; }
}

.coming-soon{
  text-align:center;
  padding:3rem 1.5rem;
}
.coming-soon .icon{
  font-size:4rem;
  margin-bottom:1rem;
}