/* ===== آوادان | سیستم طراحی — تم فیروزه‌ای ===== */
@import url('https://fonts.googleapis.com/css2?family=Vazirmatn:wght@300;400;500;600;700;800&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --turquoise: #0FB9AE;
  --turquoise-600: #0C9E95;
  --turquoise-700: #0A7F78;
  --turquoise-50: #EAFBF9;
  --turquoise-100: #D3F5F1;
  --navy: #0B2033;
  --ink: #0E2436;
  --muted: #5E7686;
  --bg: #FBFDFD;
  --bg-soft: #F2FAF9;
  --card: #FFFFFF;
  --line: #E1EEEC;
  --radius: 16px;
  --maxw: 1180px;
  --shadow: 0 14px 40px -16px rgba(11,32,51,.16);
  --shadow-sm: 0 6px 18px -10px rgba(11,32,51,.14);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'Vazirmatn', sans-serif;
  direction:rtl;
  text-align:right;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--navy);}
p{margin:0;color:var(--muted);}
.mono{font-family:'IBM Plex Mono',monospace;letter-spacing:.03em;}

.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-tight{padding:52px 0;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important;}
}
@media (max-width:640px){
  .section{padding:56px 0;}
  .section-tight{padding:36px 0;}
  .container{padding:0 18px;}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 26px;border-radius:100px;
  font-weight:600;font-size:15px;
  border:1px solid transparent;
  cursor:pointer;transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
  font-family:inherit;
}
.btn-primary{background:var(--turquoise);color:#fff;box-shadow:0 10px 24px -10px #0FB9AE88;}
.btn-primary:hover{transform:translateY(-2px);background:var(--turquoise-600);}
.btn-ghost{border-color:var(--line);color:var(--navy);background:#fff;}
.btn-ghost:hover{border-color:var(--turquoise);color:var(--turquoise-700);}
.btn-sm{padding:8px 16px;font-size:13px;border-radius:10px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:#FBFDFDee;backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;padding:16px 0;}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--navy);}
.brand-mark{
  width:34px;height:34px;border-radius:9px;
  background:linear-gradient(135deg,var(--turquoise),var(--turquoise-700));
  position:relative;flex:none;
}
.brand-mark::after{
  content:"";position:absolute;inset:8px;border-radius:5px;background:#fff;
}
.nav-links{display:flex;gap:30px;align-items:center;}
.nav-links a{color:var(--muted);font-size:15px;transition:color .15s;}
.nav-links a:hover, .nav-links a.active{color:var(--turquoise-700);}
.lang-switch{display:flex;gap:4px;background:var(--bg-soft);border:1px solid var(--line);border-radius:100px;padding:3px;margin-inline-start:6px;}
.lang-switch a{padding:5px 11px !important;border:none !important;font-size:12px;font-family:'IBM Plex Mono',monospace;border-radius:100px;color:var(--muted);width:auto !important;border-bottom:none !important;}
.lang-switch a.active{background:var(--turquoise);color:#fff !important;}
@media (max-width:900px){
  .lang-switch{margin:12px 0;}
}
.nav-cta{display:flex;gap:14px;align-items:center;}
.nav-toggle{display:none;background:none;border:none;color:var(--navy);font-size:26px;cursor:pointer;}

@media (max-width:900px){
  .nav-links{position:fixed;inset-inline:0;top:66px;background:#fff;
    flex-direction:column;align-items:flex-start;gap:0;padding:8px 24px;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm);
    transform:translateY(-130%);transition:transform .25s ease;}
  .nav-links.open{transform:translateY(0);}
  .nav-links a{padding:14px 0;width:100%;border-bottom:1px solid var(--line);}
  .nav-toggle{display:block;}
  .nav-cta .btn-ghost{display:none;}
}
@media (max-width:420px){
  .nav-cta .btn-primary{padding:10px 16px;font-size:13.5px;}
}

/* ---------- Hero + image slideshow ---------- */
.hero{padding:76px 0 30px;position:relative;overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset-inline-start:-10%;top:-30%;width:60%;aspect-ratio:1/1;
  background:radial-gradient(circle, #0FB9AE22, transparent 65%);pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;}
@media (max-width:960px){.hero-grid{grid-template-columns:1fr;} .hero-slider{margin-inline:auto;max-width:460px;}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:'IBM Plex Mono',monospace;font-size:12.5px;color:var(--turquoise-700);
  border:1px solid #0FB9AE40;background:var(--turquoise-50);
  padding:6px 14px;border-radius:100px;margin-bottom:22px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--turquoise);box-shadow:0 0 0 4px var(--turquoise-100);}
.hero h1{font-size:clamp(30px,5vw,52px);line-height:1.32;margin-bottom:22px;}
.hero h1 em{font-style:normal;color:var(--turquoise-700);}
.hero p.lead{font-size:18px;max-width:520px;margin-bottom:34px;}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;}

.hero-slider{
  position:relative;aspect-ratio:4/3.2;border-radius:20px;overflow:hidden;
  box-shadow:var(--shadow);border:1px solid var(--line);background:var(--bg-soft);
}
.hero-slider .slide{
  position:absolute;inset:0;width:100%;height:100%;
  display:block;opacity:0;visibility:hidden;
  pointer-events:none;transition:opacity 1.1s ease;
}
.hero-slider .slide.active{opacity:1;visibility:visible;pointer-events:auto;}
.hero-slider .slide img{
  display:block;width:100%;height:100%;max-width:none;object-fit:cover;
}
.hero-slider .caption{
  position:absolute;inset-inline:0;bottom:0;padding:16px 22px 14px;
  background:linear-gradient(to top, #0B2033dd, transparent);
  color:#fff;font-size:14px;font-weight:600;
}
.hero-slider .dots{position:absolute;bottom:14px;inset-inline-end:18px;display:flex;gap:6px;z-index:2;}
.hero-slider .dot{width:7px;height:7px;border-radius:50%;background:#ffffff70;transition:background .2s, transform .2s;cursor:pointer;}
.hero-slider .dot.active{background:#fff;transform:scale(1.2);}
@media (prefers-reduced-motion: reduce){
  .hero-slider .slide{transition:none;}
}

/* ---------- Sections common ---------- */
.section-head{max-width:640px;margin-bottom:52px;}
.section-head .eyebrow{margin-bottom:16px;}
.section-head h2{font-size:clamp(24px,3.4vw,36px);margin-bottom:14px;}
.section-head p{font-size:16.5px;}

/* ---------- Feature / service cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
@media (max-width:900px){.grid-3{grid-template-columns:1fr 1fr;} .grid-2{grid-template-columns:1fr;}}
@media (max-width:640px){.grid-3{grid-template-columns:1fr;}}

.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;transition:border-color .2s, transform .2s, box-shadow .2s;
}
.card:hover{border-color:var(--turquoise);transform:translateY(-4px);box-shadow:var(--shadow);}
.card .ic{
  width:46px;height:46px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:var(--turquoise-50);color:var(--turquoise-700);margin-bottom:18px;font-size:20px;
}
.card h3{font-size:18px;margin-bottom:10px;}
.card p{font-size:14.5px;}

/* ---------- Portfolio ---------- */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:36px;overflow-x:auto;padding-bottom:4px;}
.filter-btn{
  padding:9px 18px;border-radius:100px;border:1px solid var(--line);
  color:var(--muted);font-size:14px;cursor:pointer;background:#fff;
  font-family:inherit;transition:all .15s;white-space:nowrap;flex:none;
}
.filter-btn.active, .filter-btn:hover{border-color:var(--turquoise);color:var(--turquoise-700);background:var(--turquoise-50);}

.pf-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
@media (max-width:980px){.pf-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:640px){.pf-grid{grid-template-columns:1fr;}}

.pf-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;transition:transform .2s, box-shadow .2s, border-color .2s;
}
.pf-card:hover{transform:translateY(-5px);border-color:var(--turquoise);box-shadow:var(--shadow);}
.pf-thumb{aspect-ratio:16/11;background:var(--bg-soft);border-bottom:1px solid var(--line);}
.pf-thumb img{width:100%;height:100%;object-fit:cover;}
.pf-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.pf-cat{font-family:'IBM Plex Mono',monospace;font-size:11.5px;color:var(--turquoise-700);}
.pf-body h3{font-size:17px;line-height:1.6;}
.pf-body p{font-size:13.8px;flex:1;}
.pf-foot{display:flex;justify-content:space-between;align-items:center;margin-top:6px;}
.pf-link{font-size:13.5px;color:var(--turquoise-700);font-weight:600;}

/* ---------- Detail page ---------- */
.pf-detail-head{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;}
@media (max-width:900px){.pf-detail-head{grid-template-columns:1fr;}}
.pf-detail-head .pf-thumb{border-radius:var(--radius);border:1px solid var(--line);}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:22px;}
.breadcrumb a:hover{color:var(--turquoise-700);}
.feature-list li{
  display:flex;gap:10px;align-items:flex-start;padding:10px 0;
  border-bottom:1px solid var(--line);font-size:15px;color:var(--ink);
}
.feature-list li::before{content:"◆";color:var(--turquoise);font-size:10px;margin-top:7px;}
.guide-box{
  background:var(--turquoise-50);border:1px solid var(--turquoise-100);border-radius:var(--radius);
  padding:28px;margin-top:20px;
}
.guide-box h3{margin-bottom:14px;font-size:18px;color:var(--turquoise-700);}
.guide-box .content{color:var(--ink);font-size:15px;white-space:pre-line;}

/* ---------- Steps / process ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
@media (max-width:900px){.steps{grid-template-columns:1fr 1fr;}}
@media (max-width:560px){.steps{grid-template-columns:1fr;}}
.step{border-inline-start:2px solid var(--turquoise);padding-inline-start:18px;}
.step .num{font-family:'IBM Plex Mono',monospace;color:var(--turquoise-700);font-size:13px;margin-bottom:10px;display:block;}
.step h4{font-size:16px;margin-bottom:8px;}
.step p{font-size:13.8px;}

/* ---------- Forms ---------- */
.form-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:36px;max-width:640px;box-shadow:var(--shadow-sm);
}
@media (max-width:560px){.form-card{padding:24px;}}
.field{margin-bottom:20px;}
.field label{display:block;font-size:14px;margin-bottom:8px;color:var(--muted);}
.field input,.field select,.field textarea{
  width:100%;background:var(--bg-soft);border:1px solid var(--line);border-radius:10px;
  padding:13px 15px;color:var(--ink);font-family:inherit;font-size:14.5px;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--turquoise);border-color:transparent;background:#fff;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
@media (max-width:560px){.field-row{grid-template-columns:1fr;}}
.alert{padding:14px 18px;border-radius:10px;margin-bottom:22px;font-size:14.5px;}
.alert-ok{background:var(--turquoise-50);border:1px solid var(--turquoise-100);color:var(--turquoise-700);}
.alert-err{background:#FEEAEA;border:1px solid #FBC9C9;color:#C6403F;}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);padding:56px 0 30px;margin-top:60px;background:var(--navy);color:#EAF3F2;}
.site-footer h5{color:#9FC7C3;}
.site-footer p{color:#B9CDCB;}
.site-footer .brand{color:#fff;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px;margin-bottom:40px;}
@media (max-width:800px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:480px){.footer-grid{grid-template-columns:1fr;}}
.footer-grid h5{font-size:14px;margin-bottom:16px;font-weight:600;}
.footer-grid a{display:block;font-size:14px;color:#DCEEEC;opacity:.9;padding:6px 0;}
.footer-grid a:hover{color:var(--turquoise);}
.footer-bottom{
  border-top:1px solid #ffffff22;padding-top:22px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-size:13px;color:#9FB6B3;
}

/* ---------- misc ---------- */
.badge{
  display:inline-block;font-family:'IBM Plex Mono',monospace;font-size:11px;
  padding:4px 10px;border-radius:100px;border:1px solid var(--turquoise-100);color:var(--turquoise-700);background:var(--turquoise-50);
}
.center{text-align:center;}
.mt-40{margin-top:40px;}
.text-turquoise{color:var(--turquoise-700);}