@font-face{font-family:'Vazirmatn';src:url('../fonts/webfonts/Vazirmatn-Regular.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap;}
@font-face{font-family:'Vazirmatn';src:url('../fonts/webfonts/Vazirmatn-Bold.woff2') format('woff2');font-weight:700;font-style:normal;font-display:swap;}

:root {
  --bg:      #0b0f1a;
  --surface: #111827;
  --card:    #1a2235;
  --border:  #1e2d45;
  --accent:  #00d4ff;
  --accent2: #7c3aed;
  --green:   #10b981;
  --text:    #e2e8f0;
  --muted:   #64748b;
  --sans:    'Vazirmatn', sans-serif;
}
html.light {
  --bg:      #f5f7fa;
  --surface: #ffffff;
  --card:    #f0f4f8;
  --border:  #dde3ed;
  --accent:  #0077cc;
  --accent2: #6d28d9;
  --green:   #059669;
  --text:    #0f172a;
  --muted:   #64748b;
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }

body {
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
  transition:background .3s, color .3s;
}

/* ── mesh bg ── */
body::before {
  content:'';
  position:fixed;
  inset:0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 10%, rgba(0,212,255,.06) 0%, transparent 60%),
    radial-gradient(ellipse 60% 60% at 80% 80%, rgba(124,58,237,.05) 0%, transparent 60%);
  pointer-events:none;
  z-index:0;
}
html.light body::before {
  background:
    radial-gradient(ellipse 80% 50% at 20% 10%, rgba(0,119,204,.04) 0%, transparent 60%),
    radial-gradient(ellipse 60% 60% at 80% 80%, rgba(109,40,217,.03) 0%, transparent 60%);
}

/* ── theme toggle ── */
.theme-toggle {
  position:fixed;
  bottom:28px; left:28px;
  width:44px; height:44px;
  border-radius:50%;
  border:1px solid var(--border);
  background:var(--surface);
  color:var(--text);
  font-size:20px;
  cursor:pointer;
  display:flex; align-items:center; justify-content:center;
  z-index:100;
  transition:.2s;
  box-shadow:0 4px 16px rgba(0,0,0,.25);
}
.theme-toggle:hover { transform:scale(1.08); }

/* ── nav ── */
nav {
  position:fixed;
  top:0; right:0; left:0;
  z-index:50;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 48px;
  height:64px;
  background:rgba(11,15,26,.85);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.05);
  transition:background .3s;
}
html.light nav {
  background:rgba(255,255,255,.88);
  border-bottom:1px solid var(--border);
}
.nav-logo {
  display:flex; align-items:center; gap:10px;
  text-decoration:none;
}
.nav-logo-icon {
  width:32px; height:32px;
  background:linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius:8px;
  display:flex; align-items:center; justify-content:center;
  font-size:16px;
  flex-shrink:0;
}
.nav-logo-text { font-weight:700; font-size:15px; color:var(--text); }
.nav-links { display:flex; align-items:center; gap:8px; }
.nav-link {
  padding:7px 14px;
  border-radius:8px;
  font-size:13.5px;
  color:var(--muted);
  text-decoration:none;
  transition:.15s;
}
.nav-link:hover { color:var(--text); background:rgba(255,255,255,.05); }
html.light .nav-link:hover { background:var(--card); }
.nav-cta {
  padding:8px 20px;
  background:var(--accent);
  color:#000 !important;
  border-radius:8px;
  font-weight:700;
  font-size:13.5px;
  text-decoration:none;
  transition:.2s;
}
.nav-cta:hover { filter:brightness(1.1); transform:translateY(-1px); }

/* ── hero ── */
.hero {
  position:relative;
  z-index:1;
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:120px 24px 80px;
}
.hero-inner { max-width:720px; }

.hero-badge {
  display:inline-flex; align-items:center; gap:8px;
  background:rgba(0,212,255,.08);
  border:1px solid rgba(0,212,255,.2);
  color:var(--accent);
  padding:7px 18px;
  border-radius:20px;
  font-size:13px;
  margin-bottom:32px;
  animation:fadeUp .6s ease both;
}
html.light .hero-badge { background:rgba(0,119,204,.07); border-color:rgba(0,119,204,.2); }
.hero-badge-dot { width:7px; height:7px; border-radius:50%; background:var(--accent); animation:pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(.85)} }

.hero h1 {
  font-size:clamp(32px,5vw,58px);
  font-weight:700;
  line-height:1.15;
  margin-bottom:24px;
  animation:fadeUp .6s .1s ease both;
}
.hero h1 em { font-style:normal; color:var(--accent); }
.hero p {
  font-size:18px;
  color:var(--muted);
  max-width:520px;
  margin:0 auto 48px;
  animation:fadeUp .6s .2s ease both;
}
html.light .hero p { color:#475569; }

.hero-actions {
  display:flex; gap:14px; justify-content:center; flex-wrap:wrap;
  animation:fadeUp .6s .3s ease both;
}
.btn-primary {
  display:inline-flex; align-items:center; gap:9px;
  padding:14px 30px;
  background:var(--accent);
  color:#000;
  border-radius:12px;
  font-weight:700;
  font-size:15px;
  text-decoration:none;
  transition:.2s;
  box-shadow:0 4px 20px rgba(0,212,255,.25);
}
.btn-primary:hover { filter:brightness(1.1); transform:translateY(-2px); box-shadow:0 8px 28px rgba(0,212,255,.35); }
.btn-secondary {
  display:inline-flex; align-items:center; gap:9px;
  padding:14px 30px;
  background:transparent;
  color:var(--text);
  border:1px solid var(--border);
  border-radius:12px;
  font-weight:600;
  font-size:15px;
  text-decoration:none;
  transition:.2s;
}
.btn-secondary:hover { border-color:var(--accent); color:var(--accent); background:rgba(0,212,255,.05); }

/* ── stats strip ── */
.stats {
  position:relative; z-index:1;
  display:flex; gap:0;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  background:var(--surface);
  overflow:hidden;
}
.stat {
  flex:1;
  padding:28px 24px;
  text-align:center;
  border-left:1px solid var(--border);
  position:relative;
  overflow:hidden;
}
.stat:last-child { border-left:none; }
.stat::before {
  content:'';
  position:absolute; inset:0;
  background:linear-gradient(to bottom, rgba(0,212,255,.03), transparent);
  opacity:0;
  transition:.3s;
}
.stat:hover::before { opacity:1; }
.stat-num { font-size:28px; font-weight:700; color:var(--accent); line-height:1; }
.stat-label { font-size:12.5px; color:var(--muted); margin-top:6px; }

/* ── section shared ── */
section { position:relative; z-index:1; }
.section-wrap { max-width:1100px; margin:0 auto; padding:96px 48px; }
.section-tag {
  display:inline-flex; align-items:center; gap:6px;
  font-size:11px; font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:16px;
}
.section-tag::before { content:''; width:20px; height:2px; background:var(--accent); border-radius:2px; }
.section-title {
  font-size:clamp(24px,3vw,36px);
  font-weight:700;
  margin-bottom:16px;
}
.section-sub { font-size:16px; color:var(--muted); max-width:560px; }
html.light .section-sub { color:#475569; }

/* ── how it works ── */
.how-grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:2px;
  margin-top:56px;
  border:1px solid var(--border);
  border-radius:16px;
  overflow:hidden;
}
.how-step {
  background:var(--card);
  padding:32px 28px;
  transition:.2s;
  position:relative;
}
.how-step:hover { background:var(--surface); }
.step-num {
  font-size:11px; font-weight:700;
  letter-spacing:.1em;
  color:var(--muted);
  font-family:monospace;
  margin-bottom:16px;
}
.step-icon {
  font-size:28px;
  margin-bottom:14px;
  display:block;
}
.step-title { font-size:15px; font-weight:700; margin-bottom:8px; }
.step-desc { font-size:13.5px; color:var(--muted); line-height:1.6; }
html.light .step-desc { color:#64748b; }
html.light .how-step { background:var(--surface); }
html.light .how-step:hover { background:var(--card); }

/* ── downloads ── */
.downloads-grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:20px;
  margin-top:56px;
}
.dl-card {
  background:var(--card);
  border:1px solid var(--border);
  border-radius:16px;
  padding:28px;
  transition:.25s;
  text-decoration:none;
  color:inherit;
  display:flex;
  flex-direction:column;
  gap:16px;
  position:relative;
  overflow:hidden;
}
.dl-card::after {
  content:'';
  position:absolute;
  bottom:0; right:0;
  width:120px; height:120px;
  background:radial-gradient(circle, var(--accent) 0%, transparent 70%);
  opacity:.04;
  transform:translate(30%, 30%);
  transition:.3s;
}
.dl-card:hover { border-color:var(--accent); transform:translateY(-3px); box-shadow:0 12px 32px rgba(0,0,0,.25); }
.dl-card:hover::after { opacity:.08; }
.dl-card-icon {
  width:52px; height:52px;
  border-radius:14px;
  display:flex; align-items:center; justify-content:center;
  font-size:24px;
  flex-shrink:0;
}
.dl-card-icon.blue  { background:rgba(0,212,255,.1); }
.dl-card-icon.green { background:rgba(16,185,129,.1); }
.dl-card-icon.purple { background:rgba(124,58,237,.1); }
html.light .dl-card-icon.blue  { background:rgba(0,119,204,.1); }
html.light .dl-card-icon.green { background:rgba(5,150,105,.1); }
html.light .dl-card-icon.purple { background:rgba(109,40,217,.1); }
.dl-card-body { flex:1; }
.dl-card-title { font-size:16px; font-weight:700; margin-bottom:6px; }
.dl-card-desc { font-size:13.5px; color:var(--muted); line-height:1.6; }
html.light .dl-card-desc { color:#64748b; }
.dl-card-footer {
  display:flex; align-items:center; justify-content:space-between;
  padding-top:16px;
  border-top:1px solid var(--border);
}
.dl-tag {
  font-size:11px; font-weight:600;
  padding:3px 10px;
  border-radius:6px;
  font-family:monospace;
}
.dl-tag.android { background:rgba(16,185,129,.12); color:var(--green); }
.dl-tag.pwa     { background:rgba(0,212,255,.1);   color:var(--accent); }
dl-tag.android
.dl-arrow { color:var(--muted); font-size:18px; transition:.2s; }
.dl-card:hover .dl-arrow { color:var(--accent); transform:translateX(-4px); }

/* ── features ── */
.features-grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:16px;
  margin-top:56px;
}
.feature-card {
  background:var(--card);
  border:1px solid var(--border);
  border-radius:14px;
  padding:24px;
  transition:.2s;
}
.feature-card:hover { border-color:rgba(0,212,255,.3); }
html.light .feature-card { background:var(--surface); }
.feature-icon { font-size:24px; margin-bottom:12px; }
.feature-title { font-size:15px; font-weight:700; margin-bottom:8px; }
.feature-desc { font-size:13.5px; color:var(--muted); line-height:1.6; }
html.light .feature-desc { color:#64748b; }

/* ── contact ── */
.contact-section { background:var(--surface); border-top:1px solid var(--border); border-bottom:1px solid var(--border); }
.contact-grid {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
}
@media(max-width:700px){
  .contact-grid { grid-template-columns:1fr; }
}
.contact-channels { display:flex; flex-direction:column; gap:12px; margin-top:32px; }
.contact-item {
  display:flex; align-items:center; gap:14px;
  padding:14px 18px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:12px;
  text-decoration:none;
  color:var(--text);
  transition:.2s;
}
html.light .contact-item { background:var(--card); }
.contact-item:hover { border-color:var(--accent); }
.contact-item-icon {
  width:40px; height:40px;
  border-radius:10px;
  display:flex; align-items:center; justify-content:center;
  font-size:20px;
  flex-shrink:0;
}
.contact-item-icon.phone  { background:rgba(16,185,129,.1); }
.contact-item-icon.bale   { background:rgba(0,212,255,.1); }
.contact-item-icon.tg     { background:rgba(0,150,255,.1); }
.contact-item-label { font-size:11px; color:var(--muted); }
.contact-item-value { font-size:14px; font-weight:600; direction:ltr; text-align:right; }
.contact-item-arrow { margin-right:auto; color:var(--muted); font-size:14px; transition:.2s; }
.contact-item:hover .contact-item-arrow { color:var(--accent); transform:translateX(-3px); }

.contact-illustration {
  display:flex; align-items:center; justify-content:center;
}
.contact-card-visual {
  background:var(--card);
  border:1px solid var(--border);
  border-radius:20px;
  padding:36px;
  text-align:center;
  max-width:320px;
  width:100%;
}
.contact-big-icon { font-size:56px; margin-bottom:16px; }
.contact-card-title { font-size:18px; font-weight:700; margin-bottom:10px; }
.contact-card-desc { font-size:14px; color:var(--muted); line-height:1.7; }
html.light .contact-card-desc { color:#64748b; }

/* ── footer ── */
footer {
  position:relative; z-index:1;
  padding:40px 48px;
  border-top:1px solid var(--border);
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:16px;
  font-size:13px;
  color:var(--muted);
}
.footer-logo { display:flex; align-items:center; gap:8px; font-weight:700; color:var(--text); font-size:14px; }
.footer-links { display:flex; gap:20px; }
.footer-links a { color:var(--muted); text-decoration:none; transition:.15s; }
.footer-links a:hover { color:var(--text); }

/* ── animations ── */
@keyframes fadeUp {
  from { opacity:0; transform:translateY(20px); }
  to   { opacity:1; transform:translateY(0); }
}
.reveal {
  opacity:0;
  transform:translateY(24px);
  transition:opacity .55s ease, transform .55s ease;
}
.reveal.visible { opacity:1; transform:translateY(0); }

/* ── responsive ── */
@media(max-width:900px){
  .downloads-grid { grid-template-columns: repeat(auto-fit, minmax(240px,1fr)); }
  .features-grid  { grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); }
}
@media(max-width:768px){
  nav { padding:0 16px; }
  .nav-links .nav-link { display:none; }
  .section-wrap { padding:64px 20px; }
  .stats { flex-wrap:wrap; }
  .stat { min-width:50%; border-bottom:1px solid var(--border); }
  .how-grid { grid-template-columns:1fr; gap:2px; }
  .downloads-grid { grid-template-columns:1fr; }
  .features-grid  { grid-template-columns:1fr 1fr; }
  .contact-grid   { grid-template-columns:1fr; }
  .contact-illustration { display:none; }
  .hero h1 { font-size:28px; }
  .hero p  { font-size:15px; }
  .hero-actions { flex-direction:column; align-items:center; }
  .btn-primary, .btn-secondary { width:100%; justify-content:center; max-width:320px; }
  footer { padding:28px 20px; flex-direction:column; align-items:flex-start; gap:12px; }
  .footer-links { flex-wrap:wrap; gap:12px; }
}
@media(max-width:480px){
  .features-grid { grid-template-columns:1fr; }
  .stat { min-width:50%; }
  .stat-num { font-size:22px; }
}