*,
*::before,
*::after { box-sizing: border-box; }html, body {
  height: 100%;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden; 
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}body, h1, h2, h3, h4, p, ul, ol, figure { margin: 0; }ul, ol { padding: 0; list-style: none; }img, video, canvas, iframe { display: block; max-width: 100%; height: auto; }button, input, textarea, select { font: inherit; }a { color: inherit; text-decoration: none; }:focus-visible { outline: 2px solid #60a5fa; outline-offset: 2px; }:root {
  
  --bg: #ffffff;
  --fg: #0f172a;
  --muted: #475569;
  --line: #e5e7eb;

  --brand-600: #2563eb;
  --brand-700: #1d4ed8;

  --surface: #f8fafc;
  --card: #ffffff;

  
  --radius: 14px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
  --shadow-md: 0 8px 24px rgba(15,23,42,.08);

  
  --font-ui: "Inter", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  --font-fa: "Tahoma", "Vazirmatn", sans-serif;

  
  --container: clamp(280px, 92vw, 1080px);
}@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1220;
    --fg: #e5e7eb;
    --muted: #94a3b8;
    --line: #1f2937;
    --surface: #0f172a;
    --card: #111827;
    --shadow-md: 0 8px 24px rgba(0,0,0,.45);
  }
}body {
  background:
    radial-gradient(1100px 520px at 50% -12%, rgba(37,99,235,.08), transparent 60%),
    radial-gradient(820px 420px at 100% 0%, rgba(56,189,248,.10), transparent 55%),
    var(--bg);
  color: var(--fg);
  font-family: var(--font-ui);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}[dir="rtl"] body { font-family: var(--font-fa); }.container {
  width: min(100%, var(--container));
  margin-inline: auto;
  padding-inline: 16px; 
  overflow: visible; 
}.section { padding: 32px 0; }.grid { display: grid; gap: 16px; }.grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }.grid-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }@media (max-width: 992px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}@media (max-width: 640px) {
  .grid-4,.grid-3{ grid-template-columns: 1fr; }
}.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  backdrop-filter: saturate(180%) blur(6px);
  overflow: visible; 
}.site-header .container { padding-block: 10px; }.navbar {
  display: flex; align-items: center; gap: 12px;
  flex-wrap: wrap; 
  overflow: visible;
}.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 700; letter-spacing: .2px; white-space: nowrap;
  flex: 0 0 auto;
}.brand .logo {
  width: 28px; height: 28px; border-radius: 8px;
  background: var(--brand-600); box-shadow: var(--shadow-sm);
}.spacer { flex: 1 1 0; min-width: 0; }.nav {
  display: flex; align-items: center; gap: 12px;
  flex: 1 1 auto; min-width: 0; flex-wrap: wrap; 
  overflow: visible;
}.nav-link {
  padding: 8px 12px; border-radius: 10px;
  color: var(--muted); border: 1px solid transparent;
  transition: .18s ease; position: relative; white-space: nowrap;
}.nav-link:hover { background: var(--surface); color: var(--fg); }.nav-link::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: 6px;
  height: 2px; border-radius: 2px; background: currentColor; opacity: 0; transform: scaleX(.4);
  transition: transform .2s ease, opacity .2s ease;
}.nav-link:hover::after { opacity: .9; transform: scaleX(1); }.lang-select { min-width: 0; max-width: 160px; flex: 0 1 auto; }.dropdown { position: relative; flex-shrink: 0; }.dropdown-toggle { background: transparent; border: 0; cursor: pointer; display: inline-flex; align-items: center; gap: 6px; }.dropdown-toggle::after { content: "▾"; font-size: 12px; opacity: .8; transform: translateY(1px); }.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 200px;
  padding: 8px;
  display: none;
  z-index: 9999;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  max-width: 90vw; 
}.dropdown.open .dropdown-menu { display: block; }.dropdown-item { display: block; padding: 10px; border-radius: 8px; color: var(--fg); }.dropdown-item:hover { background: var(--surface); }@media (max-width: 480px) {
  .dropdown-menu {
    left: 0;
    right: auto;
    transform: translateX(-8px);
    max-width: calc(100vw - 24px);
  }
}.hero {
  padding: 28px 0 20px;
  background:
    radial-gradient(1000px 460px at 20% -12%, rgba(37,99,235,.08), transparent 60%),
    radial-gradient(800px 460px at 80% -20%, rgba(56,189,248,.10), transparent 55%),
    linear-gradient(180deg, var(--surface), transparent 60%);
  background-size: cover;
  overflow: hidden; 
}.hero h1 { font-size: clamp(22px, 5.2vw, 34px); line-height: 1.2; letter-spacing: -0.3px; margin-bottom: 12px; }.hero p  { color: var(--muted); margin-bottom: 16px; }.input-group {
  display: flex;
  gap: 8px;
  align-items: stretch;
  flex-wrap: nowrap;
}.input-group > .input,
.input-group > input[type="url"],
.input-group > input[type="text"] {
  flex: 1 1 auto;
  min-width: 0; 
}@media (max-width: 640px) {
  .input-group { flex-direction: column; }
  .input-group .btn { width: 100%; }
}.input,.select{
  width: 100%; border: 1px solid var(--line); background: var(--card); color: var(--fg);
  border-radius: 12px; padding: 12px 14px;
  transition: border-color .15s ease, box-shadow .15s ease, background .15s ease;
  min-width: 0;
}.input::placeholder { color: #94a3b8; }.input:focus,.select:focus{
  border-color: #6aa3ff;                
  box-shadow: 0 0 0 4px rgba(37,99,235,.15); 
}.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-weight: 600;
  padding: 12px 16px; border-radius: 12px; border: 1px solid transparent; cursor: pointer;
  background: var(--surface); color: var(--fg);
  transition: transform .05s ease, background .15s ease, border-color .15s ease, box-shadow .15s ease;
  user-select: none; min-width: 0;
}.btn:hover { background: #eef2ff; }.btn:active { transform: translateY(1px); }.btn:focus-visible { box-shadow: 0 0 0 4px rgba(37,99,235,.22); }.btn-primary { background: var(--brand-600); color: #fff; border-color: var(--brand-600); box-shadow: 0 6px 16px rgba(37,99,235,.20); }.btn-primary:hover { background: var(--brand-700); border-color: var(--brand-700); box-shadow: 0 8px 22px rgba(29,78,216,.26); }.btn-ghost   { background: var(--surface); color: var(--fg); }.btn-outline { background: transparent; border-color: var(--line); }.btn-sm      { padding: 8px 12px; border-radius: 10px; font-weight: 600; }.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow-md);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}.card:hover {
  transform: translateY(-3px);
  border-color: #8fb7ff;
  box-shadow: 0 14px 28px rgba(15,23,42,.10);
}.card-body { padding: 18px; }.card-title { font-weight: 700; margin-bottom: 8px; letter-spacing: -0.2px; }.card-muted { color: var(--muted); }.hidden { display: none !important; }.center { display: grid; place-items: center; }.mb-3{margin-bottom:12px}.feature-list { display: grid; gap: 14px; grid-template-columns: repeat(3, 1fr); }@media (max-width: 992px){ .feature-list{ grid-template-columns: 1fr 1fr; } }@media (max-width: 640px){ .feature-list{ grid-template-columns: 1fr; } }.feature-item {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow-sm);
}.feature-item h3 { font-size: 18px; margin-bottom: 6px; }.feature-item p  { color: var(--muted); font-size: 14px; }.accordion { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }.accordion-item + .accordion-item { border-top: 1px solid var(--line); }.accordion-summary {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 16px; cursor: pointer; font-weight: 600; background: var(--card);
  position: relative; transition: background .15s ease;
}.accordion-summary::after { content: "▾"; font-size: 14px; opacity: .7; transform: rotate(0deg); transition: transform .18s ease, opacity .18s ease; }.accordion-item.open .accordion-summary::after { transform: rotate(-180deg); opacity: 1; }.accordion-content {
  overflow: hidden;
  max-height: 0;              
  padding: 0 16px;
  transition: max-height .24s ease;
}.accordion-item.open .accordion-content {
  max-height: 600px;          
}.accordion-content > * { padding: 0 0 14px 0; color: var(--muted); }.site-footer {
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, transparent, #f3f5f9);
}.footer-inner { padding: 24px 0; color: var(--muted); font-size: 14px; display: grid; gap: 8px; }.footer-links { display: flex; flex-wrap: wrap; gap: 12px; }.footer-links a {
  padding: 6px 10px; border-radius: 10px; border: 1px solid transparent;
  transition: background .15s ease, border-color .15s ease;
}.footer-links a:hover { background: var(--surface); border-color: var(--line); }[class*="row"] { margin: 0 auto; max-width: 100%; }.hero--tool{
  padding: 48px 0 56px;
  background: linear-gradient(135deg,#a855f7 0%,#ec4899 50%,#f97316 100%);
  color: #fff;
  text-align: center;
}.hero--tool .hero-title{
  font-size: 2rem;
  font-weight: 800;
  margin: 0 0 .5rem;
}.hero--tool .hero-sub{
  max-width: 640px;
  margin: 0 auto 24px;
  font-size: .98rem;
  opacity: .95;
}.tool-section{
  padding: 32px 0;
  background: #f9fafb;
}.tool-section:nth-of-type(even){
  background:#f3f4f6;
}.tool-section .section-inner{
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px;
}.tool-section h2{
  font-size: 1.4rem;
  margin: 0 0 10px;
  text-align: center;
}.tool-section p.section-lead{
  max-width: 640px;
  margin: 0 auto 22px;
  text-align: center;
  color: #6b7280;
  font-size: .95rem;
}.tool-how-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:16px;
}.tool-step{
  background:#fff;
  border-radius:16px;
  padding:12px;
  border:1px solid rgba(148,163,184,.35);
  box-shadow:0 10px 22px rgba(15,23,42,.04);
}.tool-step img{
  width:100%;
  display:block;
  border-radius:12px;
  margin-bottom:8px;
}.tool-step-title{
  font-weight:600;
  margin-bottom:4px;
  font-size:.95rem;
}.tool-step-text{
  font-size:.85rem;
  color:#6b7280;
}.tool-faq-item{
  border-radius:12px;
  border:1px solid rgba(148,163,184,.4);
  background:#fff;
  margin-bottom:8px;
  overflow:hidden;
}.tool-faq-q{
  padding:10px 12px;
  cursor:pointer;
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:.95rem;
}.tool-faq-item.is-open .tool-faq-a{
  display:block;
}@media (max-width:768px){
  .hero--tool{
    padding:36px 0 40px;
  }
  .hero--tool .hero-title{
    font-size:1.4rem;
  }
  
}.tool-section .accordion {
  max-width: 760px;
  margin: 0 auto;
}.tool-section .accordion-item {
  border-radius: 16px;
  background: #fff;
  border: 1px solid #e5e7eb;
  margin-bottom: 10px;
  overflow: hidden;
  box-shadow: 0 10px 24px rgba(15,23,42,.06);
}.tool-section .accordion-summary {
  width: 100%;
  text-align: left;
  padding: 10px 14px;
  font-size: 0.95rem;
  background: #fff;
  border: 0;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}.tool-section .accordion-summary::after {
  content: "▾";
  font-size: 0.8rem;
  color: #6b7280;
}.tool-section .accordion-item.open .accordion-summary::after {
  content: "▴";
}.tool-section .accordion-content {
  padding: 0 14px 10px;
  font-size: 0.88rem;
  color: #4b5563;
  display: none;
}.tool-section .accordion-item.open .accordion-content {
  display: block;
}.faq-item {
  border-bottom: 1px solid #e5e7eb;
  padding: 10px 0;
}.faq-question {
  width: 100%;
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 500;
  display: flex;
  justify-content: space-between;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s;
}.faq-question:hover {
  background: #f9fafb;
}.faq-arrow {
  font-size: 14px;
  opacity: 0.5;
}.faq-answer {
  display: none;
  padding: 12px 6px 4px 6px;
  color: #444;
  font-size: 14px;
  line-height: 1.7;
}.faq-item.active .faq-answer {
  display: block;
}.faq-item.active .faq-arrow {
  transf




.section-faq {
  margin-top: 60px;
  padding: 48px 0 64px;
  background: #f3f4f6;
}

.section-faq .section-title {
  text-align: center;
  margin-bottom: 24px;
}

.faq-wrapper {
  max-width: 840px;
  margin: 0 auto;
}


.faq-item + .faq-item {
  margin-top: 10px;
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  border: none;
  border-radius: 999px;           
  background: #ffffff;
  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.06);
  font-size: 15px;
  font-weight: 500;
  color: #111827;
  cursor: pointer;
  text-align: left;
  transition: box-shadow 0.2s, transform 0.1s, background 0.2s;
}

.faq-question:hover {
  background: #f9fafb;
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.08);
  transform: translateY(-1px);
}

.faq-arrow {
  font-size: 14px;
  opacity: 0.6;
  transition: transform 0.2s;
}

.faq-answer {
  display: none;
  padding: 10px 18px 4px;
  font-size: 14px;
  color: #4b5563;
  line-height: 1.7;
}


.faq-item.active .faq-answer {
  display: block;
}

.faq-item.active .faq-arrow {
  transform: rotate(180deg);
}



.features {
  margin-top: 50px;
}

.feature-card {
  background: #ffffff;
  border-radius: 16px;
  padding: 24px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
  transition: transform .2s, box-shadow .2s;
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 18px rgba(0,0,0,0.09);
}

.feature-icon {
  width: 44px;
  height: 44px;
  margin: 0 auto 14px;
  border-radius: 999px;
  background: #eef2ff; 
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  stroke: #4f46e5;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.feature-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
}

.feature-text {
  font-size: 14px;
  color: #555;
  line-height: 1.6;
}


.feature-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 14px;
  border-radius: 999px;
  background: #eef2ff;
  display: flex;
  align-items: center;
  justify-content: center;
}



}