/* ==========================================================================
   Behsaco — Design tokens
   Concept: "Drafting sheet" — engineering blueprint meets warm workshop paper.
   Dark ink background = the CAD/PCB screen. Warm paper cards = the physical
   output (print, resin, packaging). Copper = solder/trace. Blue = schematic
   wire / selection highlight.
   ========================================================================== */

:root{
  --ink-950:#0A0E13;
  --ink-900:#111820;
  --ink-850:#161F29;
  --ink-800:#1C2733;
  --line:#2A3844;
  --line-soft:#1F2A34;
  --paper:#EDE7D9;
  --paper-dim:#DCD4BF;
  --ink-on-paper:#1B1710;
  --text:#E8EAEC;
  --muted:#8FA0AC;
  --muted-2:#5E6F7A;
  --copper:#E08A3C;
  --copper-bright:#F3A855;
  --trace:#5FA8E0;

  --font-display:'Vazirmatn', sans-serif;
  --font-body:'Vazirmatn', sans-serif;
  --font-mono:'IBM Plex Mono','Vazirmatn', monospace;

  --radius-s:6px;
  --radius-m:14px;
  --radius-l:28px;

  --container:1240px;
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important; }
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--ink-950);
  color:var(--text);
  font-family:var(--font-body);
  font-weight:400;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; }
ul{ list-style:none; margin:0; padding:0; }
h1,h2,h3,h4{ margin:0; font-family:var(--font-display); font-weight:700; letter-spacing:-0.01em; }
p{ margin:0; }

.container{
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:24px;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.14em;
  color:var(--copper-bright);
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:var(--copper-bright);
}

.section{ padding:112px 0; position:relative; }
.section-head{
  max-width:640px;
  margin-bottom:56px;
}
.section-head h2{
  font-size:clamp(28px,4vw,42px);
  margin-top:14px;
  color:var(--text);
}
.section-head p{
  margin-top:16px;
  color:var(--muted);
  font-size:16.5px;
}

/* Grid-paper backdrop used behind dark sections */
.grid-field{
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image:linear-gradient(to bottom, transparent, black 12%, black 88%, transparent);
          mask-image:linear-gradient(to bottom, transparent, black 12%, black 88%, transparent);
  opacity:.5;
  pointer-events:none;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:15px 28px;
  border-radius:999px;
  font-weight:600;
  font-size:15px;
  border:1px solid transparent;
  transition:transform .35s cubic-bezier(.2,.8,.2,1), background .25s ease, border-color .25s ease, color .25s ease;
  white-space:nowrap;
}
.btn:active{ transform:scale(.97); }
.btn-primary{
  background:var(--copper);
  color:#1A1006;
}
.btn-primary:hover{ background:var(--copper-bright); transform:translateY(-2px); }
.btn-ghost{
  background:transparent;
  color:var(--text);
  border-color:var(--line);
}
.btn-ghost:hover{ border-color:var(--copper-bright); color:var(--copper-bright); transform:translateY(-2px); }
.btn-block{ width:100%; }
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible{
  outline:2px solid var(--trace);
  outline-offset:3px;
}

/* ---------------- Header ---------------- */
.site-header{
  position:fixed;
  inset-inline:0;
  top:0;
  z-index:100;
  padding:18px 0;
  transition:background .4s ease, border-color .4s ease, padding .4s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(10,14,19,.86);
  backdrop-filter:blur(14px);
  border-color:var(--line);
  padding:12px 0;
}
.site-header .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-display);
  font-weight:800;
  font-size:19px;
  color:var(--text);
}
.brand .mark{ width:34px; height:34px; flex-shrink:0; }
.brand span em{
  font-style:normal;
  color:var(--copper-bright);
}

.main-nav{ display:flex; align-items:center; gap:34px; }
.main-nav a{
  font-size:14.5px;
  color:var(--muted);
  position:relative;
  padding-block:4px;
  transition:color .25s ease;
}
.main-nav a:hover{ color:var(--text); }
.main-nav a::after{
  content:"";
  position:absolute;
  right:0; left:0; bottom:-2px;
  height:1px;
  background:var(--copper-bright);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .3s ease;
}
.main-nav a:hover::after{ transform:scaleX(1); }

.header-actions{ display:flex; align-items:center; gap:14px; }
.nav-toggle{
  display:none;
  width:42px; height:42px;
  border-radius:50%;
  border:1px solid var(--line);
  background:transparent;
  align-items:center;
  justify-content:center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:"";
  display:block;
  width:16px; height:1.5px;
  background:var(--text);
  position:relative;
  transition:transform .3s ease, opacity .3s ease;
}
.nav-toggle span::before{ position:absolute; top:-5px; }
.nav-toggle span::after{ position:absolute; top:5px; }
.nav-toggle.is-active span{ background:transparent; }
.nav-toggle.is-active span::before{ transform:rotate(45deg); top:0; }
.nav-toggle.is-active span::after{ transform:rotate(-45deg); top:0; }

/* Mobile dropdown nav: hidden by default at every breakpoint, only shown
   via JS toggling .is-open (on mobile, since the toggle button that
   controls it is itself hidden above the 760px breakpoint). */
.mobile-nav{
  display:none;
  flex-direction:column;
  gap:4px;
  position:fixed;
  top:0; right:0; left:0;
  z-index:99;
  background:var(--ink-900);
  border-bottom:1px solid var(--line);
  padding:86px 24px 22px;
  max-height:0;
  overflow:hidden;
  opacity:0;
  transition:max-height .35s ease, opacity .3s ease;
}
.mobile-nav.is-open{
  display:flex;
  max-height:420px;
  opacity:1;
}
.mobile-nav a{
  padding:13px 4px;
  font-size:15px;
  color:var(--muted);
  border-bottom:1px solid var(--line-soft);
}
.mobile-nav a:last-child{ border-bottom:none; margin-top:10px; }

/* ---------------- Hero ---------------- */
.hero{
  position:relative;
  padding:172px 0 96px;
  overflow:hidden;
}
.hero .container{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
}
.hero-copy .eyebrow{ margin-bottom:22px; }
.hero-copy h1{
  font-size:clamp(34px,5.2vw,58px);
  line-height:1.22;
  color:var(--text);
}
.hero-copy h1 em{
  font-style:normal;
  color:var(--copper-bright);
  position:relative;
}
.hero-copy p.lede{
  margin-top:26px;
  font-size:17.5px;
  color:var(--muted);
  max-width:520px;
}
.hero-actions{
  display:flex;
  gap:16px;
  margin-top:38px;
  flex-wrap:wrap;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:46px;
}
.hero-tags span{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.03em;
  color:var(--muted-2);
  border:1px solid var(--line);
  border-radius:999px;
  padding:7px 14px;
}

.hero-art{ position:relative; }
.sheet{
  position:relative;
  background:var(--ink-900);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  padding:26px;
  aspect-ratio:1/1;
}
.sheet::before{
  content:"";
  position:absolute; inset:10px;
  border:1px dashed var(--line);
  border-radius:8px;
  pointer-events:none;
}
.sheet-corner{
  position:absolute;
  width:14px; height:14px;
  border-color:var(--copper-bright);
}
.sheet-corner.tl{ top:6px; right:6px; border-top:2px solid; border-right:2px solid; }
.sheet-corner.tr{ top:6px; left:6px; border-top:2px solid; border-left:2px solid; }
.sheet-corner.bl{ bottom:6px; right:6px; border-bottom:2px solid; border-right:2px solid; }
.sheet-corner.br{ bottom:6px; left:6px; border-bottom:2px solid; border-left:2px solid; }

.sheet-titleblock{
  position:absolute;
  bottom:26px; left:26px;
  font-family:var(--font-mono);
  font-size:10.5px;
  color:var(--muted-2);
  background:var(--ink-950);
  border:1px solid var(--line);
  border-radius:6px;
  padding:8px 12px;
  line-height:1.7;
}
.sheet-titleblock b{ color:var(--copper-bright); display:block; font-size:11px; }

/* ---------------- Marquee (News Ticker) ---------------- */
.marquee{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  overflow:hidden;
  padding:18px 0;
  background:var(--ink-900);
  display:flex;
  direction:ltr;
}
.marquee-track{
  display:flex;
  flex:none;
  align-items:center;
  gap:64px;
  width:max-content;
  direction:ltr;
  will-change:transform;
  /* حرکت با جاوااسکریپت (main.js) کنترل می‌شه، نه انیمیشن CSS درصدی —
     چون گروه «خالی» (lead) فقط یک‌بار در ابتدای مسیره و ٪۵۰ اینجا معنی نداره */
}
.marquee-group{
  display:flex;
  flex:none;
  align-items:center;
  gap:64px;
}
.marquee-track span{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.05em;
  color:var(--muted-2);
  white-space:nowrap;
  display:inline-flex;
  align-items:center;
  gap:20px;
  flex:none;
}
.marquee-track span em{ color:var(--copper-bright); font-style:normal; }
.marquee-track span.ghost{ visibility:hidden; } /* شبح: فضا رو می‌گیره ولی دیده نمی‌شه */

/* ---------------- Services ---------------- */
.services-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
}
.service-card{
  position:relative;
  background:var(--ink-900);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  padding:28px 24px;
  transition:transform .4s cubic-bezier(.2,.8,.2,1), border-color .4s ease, background .4s ease;
}
.service-card:hover{
  transform:translateY(-6px);
  border-color:var(--copper);
  background:var(--ink-850);
}
.service-code{
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--muted-2);
  letter-spacing:.08em;
}
.service-icon{
  width:44px; height:44px;
  margin:18px 0 20px;
  color:var(--copper-bright);
}
.service-card h3{
  font-size:17px;
  color:var(--text);
}
.service-card p{
  margin-top:10px;
  font-size:14px;
  color:var(--muted);
}
.service-card .go{
  margin-top:18px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--copper-bright);
  font-weight:600;
  opacity:0;
  transform:translateX(-6px);
  transition:opacity .3s ease, transform .3s ease;
}
[dir="rtl"] .service-card .go{ transform:translateX(6px); }
.service-card:hover .go{ opacity:1; transform:translateX(0); }

/* ---------------- Process ---------------- */
.process{
  background:var(--paper);
  color:var(--ink-on-paper);
  border-radius:var(--radius-l);
  margin-inline:24px;
  padding:80px 56px;
}
.process-inner{ max-width:var(--container); margin-inline:auto; }
.process .eyebrow{ color:#9A5A1E; }
.process .eyebrow::before{ background:#9A5A1E; }
.process-head h2{ color:var(--ink-on-paper); }
.process-head p{ color:#5B5340; }
.process-steps{
  margin-top:52px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  position:relative;
}
.process-steps::before{
  content:"";
  position:absolute;
  top:26px; right:12.5%; left:12.5%;
  height:1px;
  background:repeating-linear-gradient(90deg,#9A5A1E 0 8px, transparent 8px 16px);
}
.process-step{ position:relative; padding-inline-end:24px; }
.process-num{
  width:52px; height:52px;
  border-radius:50%;
  background:var(--ink-on-paper);
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:15px;
  display:flex;
  align-items:center;
  justify-content:center;
  position:relative;
  z-index:2;
}
.process-step h4{
  margin-top:22px;
  font-size:16.5px;
  color:var(--ink-on-paper);
}
.process-step p{
  margin-top:8px;
  font-size:13.8px;
  color:#5B5340;
}

/* ---------------- Why us ---------------- */
.why-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  overflow:hidden;
}
.why-item{
  background:var(--ink-950);
  padding:34px 26px;
}
.why-item .num{
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--muted-2);
}
.why-item h4{
  margin-top:16px;
  font-size:16px;
  color:var(--text);
}
.why-item p{
  margin-top:10px;
  font-size:13.6px;
  color:var(--muted);
}

/* ---------------- Portfolio ---------------- */
.portfolio-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
}
.portfolio-card{
  position:relative;
  display:block;
  border-radius:var(--radius-m);
  overflow:hidden;
  aspect-ratio:4/3;
  border:1px solid var(--line);
  background:var(--ink-900);
  cursor:pointer;
}
.portfolio-card img{ width:100%; height:100%; object-fit:cover; transition:transform .6s cubic-bezier(.2,.8,.2,1); }
.portfolio-card:hover img{ transform:scale(1.06); }
.portfolio-play{
  position:absolute;
  top:50%; left:50%;
  transform:translate(-50%,-50%) scale(.85);
  width:56px; height:56px;
  border-radius:50%;
  background:rgba(10,14,19,.55);
  border:1px solid rgba(255,255,255,.4);
  backdrop-filter:blur(4px);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  padding-inline-start:3px;
  opacity:0;
  transition:opacity .3s ease, transform .3s ease;
  pointer-events:none;
}
.portfolio-card:hover .portfolio-play{ opacity:1; transform:translate(-50%,-50%) scale(1); }
.portfolio-overlay{
  position:absolute; inset:0;
  background:linear-gradient(to top, rgba(10,14,19,.92), rgba(10,14,19,0) 55%);
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  padding:20px;
}
.portfolio-overlay span{
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--copper-bright);
}
.portfolio-overlay h4{ margin-top:6px; font-size:15.5px; color:#fff; }

/* ---------------- Courses ---------------- */
.courses-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
}
.course-card{
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  overflow:hidden;
  background:var(--ink-900);
  display:flex;
  flex-direction:column;
  transition:transform .35s ease, border-color .35s ease;
}
.course-card:hover{ transform:translateY(-6px); border-color:var(--trace); }
.course-thumb{ aspect-ratio:16/10; overflow:hidden; }
.course-thumb img{ width:100%; height:100%; object-fit:cover; }
.course-body{ padding:22px 22px 24px; display:flex; flex-direction:column; gap:14px; flex:1; }
.course-level{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.06em;
  color:var(--trace);
}
.course-card h3{ font-size:16.5px; color:var(--text); }
.course-meta{
  display:flex;
  gap:16px;
  font-size:12.6px;
  color:var(--muted);
  font-family:var(--font-mono);
}
.course-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top:14px;
  border-top:1px solid var(--line-soft);
}
.course-price{ font-family:var(--font-mono); font-size:15px; color:var(--copper-bright); font-weight:600; }
.course-price small{ color:var(--muted-2); font-size:11px; font-weight:400; }
.course-cta{ font-size:13.5px; font-weight:600; color:var(--text); }
.course-cta:hover{ color:var(--copper-bright); }

/* ---------------- CTA band ---------------- */
.cta-band{
  position:relative;
  border-radius:var(--radius-l);
  margin-inline:24px;
  padding:72px 56px;
  background:var(--ink-900);
  border:1px solid var(--line);
  overflow:hidden;
  text-align:center;
}
.cta-band h2{
  font-size:clamp(26px,3.6vw,40px);
  max-width:620px;
  margin-inline:auto;
}
.cta-band p{
  margin-top:16px;
  color:var(--muted);
  font-size:16px;
}
.cta-band .hero-actions{ justify-content:center; margin-top:32px; }

/* ---------------- Order form ---------------- */
.order-wrap{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:56px;
  align-items:flex-start;
}
.order-info{ position:sticky; top:120px; }
.order-info .eyebrow{ margin-bottom:18px; }
.order-info h2{ font-size:clamp(26px,3.4vw,36px); }
.order-info p{ margin-top:16px; color:var(--muted); font-size:15.5px; }
.order-info ul{ margin-top:28px; display:flex; flex-direction:column; gap:14px; }
.order-info li{
  display:flex; align-items:flex-start; gap:12px;
  font-size:14.5px; color:var(--muted);
}
.order-info li .dot{
  width:6px; height:6px; border-radius:50%;
  background:var(--copper-bright);
  margin-top:8px; flex-shrink:0;
}

.order-form{
  background:var(--ink-900);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  padding:36px;
}
.course-banner{
  display:flex;
  align-items:center;
  gap:8px;
  background:rgba(224,138,60,.1);
  border:1px solid var(--copper);
  border-radius:var(--radius-s);
  padding:12px 14px;
  margin-bottom:22px;
  font-size:13.5px;
  color:var(--muted);
}
.course-banner b{ color:var(--copper-bright); font-weight:600; }
.course-banner button{
  margin-inline-start:auto;
  background:transparent;
  border:none;
  color:var(--muted-2);
  font-size:14px;
  padding:2px 6px;
}
.course-banner button:hover{ color:var(--text); }

.mobile-nav-scrim{
  position:fixed; inset:0;
  background:rgba(0,0,0,.5);
  z-index:98;
  opacity:0; visibility:hidden;
  transition:opacity .3s ease;
}
.mobile-nav-scrim.is-open{ opacity:1; visibility:visible; }

.field{ margin-bottom:20px; }
.field label{
  display:block;
  font-size:13.5px;
  color:var(--muted);
  margin-bottom:8px;
}
.field input, .field textarea, .field select{
  width:100%;
  background:var(--ink-950);
  border:1px solid var(--line);
  border-radius:var(--radius-s);
  padding:13px 15px;
  color:var(--text);
  font-family:var(--font-body);
  font-size:14.5px;
  transition:border-color .25s ease;
}
.field input:focus, .field textarea:focus, .field select:focus{
  border-color:var(--trace);
  outline:none;
}
.field textarea{ resize:vertical; min-height:120px; }
.service-picker{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:10px;
}
.service-chip{
  border:1px solid var(--line);
  border-radius:var(--radius-s);
  padding:11px 12px;
  font-size:13px;
  color:var(--muted);
  text-align:center;
  transition:all .2s ease;
}
.service-chip input{ display:none; }
.service-chip:has(input:checked){
  border-color:var(--copper);
  color:var(--copper-bright);
  background:rgba(224,138,60,.08);
}
.file-drop{
  border:1px dashed var(--line);
  border-radius:var(--radius-s);
  padding:24px;
  text-align:center;
  font-size:13px;
  color:var(--muted-2);
}
.file-drop b{ color:var(--muted); font-weight:600; }
.form-note{
  margin-top:16px;
  font-size:12.5px;
  color:var(--muted-2);
  text-align:center;
}

/* ---------------- Footer ---------------- */
.site-footer{
  border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand p{ margin-top:16px; color:var(--muted); font-size:14px; max-width:280px; }
.footer-col h5{
  font-size:13px;
  color:var(--muted-2);
  font-family:var(--font-mono);
  letter-spacing:.05em;
  margin-bottom:18px;
}
.footer-col ul{ display:flex; flex-direction:column; gap:12px; }
.footer-col a{ font-size:14px; color:var(--muted); transition:color .2s ease; }
.footer-col a:hover{ color:var(--copper-bright); }
.footer-bottom{
  margin-top:56px;
  padding-top:24px;
  border-top:1px solid var(--line-soft);
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:12.5px;
  color:var(--muted-2);
}
.social-row{ display:flex; gap:14px; }
.social-row a{
  width:36px; height:36px;
  border:1px solid var(--line);
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
}
.social-row a:hover{ border-color:var(--copper-bright); }
.social-row svg{ width:16px; height:16px; }

/* ---------------- Scroll reveal ---------------- */
.reveal{ opacity:0; transform:translateY(28px); transition:opacity .8s cubic-bezier(.2,.7,.2,1), transform .8s cubic-bezier(.2,.7,.2,1); }
.reveal.is-visible{ opacity:1; transform:translateY(0); }

/* ---------------- Back to top ---------------- */
.to-top{
  position:fixed;
  bottom:28px;
  left:28px;
  width:46px; height:46px;
  border-radius:50%;
  background:var(--ink-900);
  border:1px solid var(--line);
  display:flex; align-items:center; justify-content:center;
  opacity:0; visibility:hidden;
  transform:translateY(10px);
  transition:all .3s ease;
  z-index:80;
}
.to-top.is-visible{ opacity:1; visibility:visible; transform:translateY(0); }
.to-top:hover{ border-color:var(--copper-bright); }

/* ---------------- Mobile sticky CTA bar ---------------- */
.mobile-cta-bar{
  display:none;
  position:fixed;
  bottom:0; inset-inline:0;
  z-index:90;
  padding:12px 16px calc(12px + env(safe-area-inset-bottom));
  background:rgba(10,14,19,.92);
  backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
  transition:transform .3s ease;
}
.mobile-cta-bar.is-hidden{ transform:translateY(100%); }
.mobile-cta-bar a{
  display:flex;
  align-items:center;
  justify-content:center;
  width:100%;
  height:50px;
  border-radius:999px;
  background:var(--copper);
  color:#1A1006;
  font-weight:700;
  font-size:15px;
}

/* ---------------- Responsive ---------------- */
@media (max-width:1080px){
  .services-grid{ grid-template-columns:repeat(2,1fr); }
  .why-grid{ grid-template-columns:repeat(2,1fr); }
  .process-steps{ grid-template-columns:repeat(2,1fr); row-gap:36px; }
  .process-steps::before{ display:none; }
  .portfolio-grid, .courses-grid{ grid-template-columns:repeat(2,1fr); }
  .footer-grid{ grid-template-columns:1fr 1fr; row-gap:36px; }
  .order-wrap{ grid-template-columns:1fr; }
  .order-info{ position:static; }
}

@media (max-width:760px){
  html{ scroll-padding-top:76px; } /* اسکرول به لینک‌های #anchor پشت هدر ثابت گیر نکنه */
  body{ padding-bottom:78px; overflow-x:hidden; } /* جا برای نوار ثابت پایین صفحه + امنیت در برابر اسکرول افقی */
  .container{ padding-inline:16px; }

  /* هدر جمع‌وجورتر + همه‌ی لینک‌های تمام‌عرض حذف، فقط منوی همبرگری */
  .main-nav, .header-actions .btn-ghost{ display:none; }
  .nav-toggle{ display:flex; }
  .site-header{ padding:14px 0; }
  .site-header.is-scrolled{ padding:10px 0; }
  .brand{ font-size:16px; }
  .brand .mark{ width:26px; height:26px; }

  /* هیرو: اول متن و پیشنهاد اصلی، بعدش تصویر تزئینی کوچیک‌تر (نه برعکس) */
  .hero{ padding:100px 0 40px; }
  .hero .container{ grid-template-columns:1fr; gap:28px; }
  .hero-copy h1{ font-size:clamp(26px,7vw,34px); line-height:1.3; }
  .hero-copy p.lede{ font-size:14.5px; max-width:none; }
  .hero-actions{ margin-top:24px; gap:10px; }
  .hero-actions .btn{ flex:1 1 auto; padding:14px 18px; font-size:14px; }
  .hero-tags{ margin-top:26px; gap:8px; }
  .hero-tags span{ font-size:10.5px; padding:6px 10px; }
  .hero-art{  width: 78vw;
        max-width: 300px;
        margin-inline: auto;
        opacity: .95; }
  .sheet{ padding:14px; }
  .sheet-titleblock{ font-size:8.5px; padding:5px 8px; bottom:12px; left:12px; }

  .marquee{ padding:14px 0; }
  .marquee-track span{ font-size:11.5px; } /* gap عمداً همون 64px دسکتاپ می‌مونه چون main.js دقیقاً همین مقدار رو برای محاسبه‌ی عرض‌ها فرض می‌کنه */

  .section{ padding:44px 0; }
  .section-head{ margin-bottom:24px; }
  .section-head h2{ font-size:clamp(21px,6vw,26px); margin-top:10px; }
  .section-head p{ font-size:13.5px; }
  .eyebrow{ font-size:11px; }

  /* ---- گریدهای کارتی: پیش‌فرض دو ستون فشرده، نه یک ستون کشیده ---- */
  .services-grid{ grid-template-columns:repeat(2, minmax(0,1fr)); gap:10px; }
  .service-card{ padding:16px 14px; }
  .service-code{ font-size:9.5px; }
  .service-icon{ width:30px; height:30px; margin:12px 0 10px; }
  .service-card h3{ font-size:13.5px; line-height:1.4; }
  .service-card p{ font-size:11.5px; margin-top:6px; -webkit-line-clamp:3; display:-webkit-box; -webkit-box-orient:vertical; overflow:hidden; }
  .service-card .go{ display:none; } /* کل کارت لینکه، این متن اضافه‌ست و جا می‌گیره */

  .process{ padding:32px 16px; margin-inline:0; border-radius:18px; }
  .process-steps{ grid-template-columns:repeat(2, minmax(0,1fr)); row-gap:22px; column-gap:14px; }
  .process-steps::before{ display:none; }
  .process-step{ padding-inline-end:0; }
  .process-num{ width:38px; height:38px; font-size:12.5px; }
  .process-step h4{ margin-top:14px; font-size:14px; }
  .process-step p{ font-size:12px; margin-top:6px; }

  .why-grid{ grid-template-columns:repeat(2, minmax(0,1fr)); border-radius:14px; }
  .why-item{ padding:16px 14px; }
  .why-item .num{ font-size:10.5px; }
  .why-item h4{ font-size:13.5px; margin-top:10px; }
  .why-item p{ font-size:11.5px; margin-top:6px; }

  .portfolio-grid{ grid-template-columns:repeat(2, minmax(0,1fr)); gap:10px; }
  .portfolio-overlay{ padding:12px; }
  .portfolio-overlay span{ font-size:9.5px; }
  .portfolio-overlay h4{ font-size:12.5px; margin-top:4px; line-height:1.35; }
  .portfolio-play{ width:40px; height:40px; font-size:13px; }

  /* دوره‌ها محتوای متراکم‌تری دارن (قیمت، مدت، سطح، دکمه)؛ زیر ۴۸۰px یک‌ستونه می‌مونه
     تا خوانا بمونه، از ۴۸۰ تا ۷۶۰px دو ستونه می‌شه (قانون کلی صفحه) */
.courses-grid{
    grid-template-columns:repeat(2, minmax(0,1fr));
    gap:10px;
}
  .course-body{ padding:16px 16px 18px; gap:10px; }
  .course-card h3{ font-size:14.5px; }

  .order-wrap{ gap:28px; }
  .order-form{ padding:20px 16px; }
  .order-info h2{ font-size:clamp(21px,6vw,26px); }
  /* چیپ‌های سرویس متن کوتاهی دارن، دو ستونه جواب می‌ده */
  .service-picker{ grid-template-columns:repeat(2, minmax(0,1fr)); gap:8px; }
  .service-chip{ font-size:12px; padding:10px 8px; }
  /* اسم دوره‌ها معمولاً جمله‌ی کامله، برای خوانایی یک‌ستونه می‌مونه */
  #course-picker.service-picker{ grid-template-columns:1fr; }

  .cta-band{ margin-inline:0; padding:36px 18px; border-radius:18px; }
  .cta-band h2{ font-size:clamp(20px,6vw,25px); }
  .cta-band p{ font-size:13.5px; }

  .site-footer{ padding:40px 0 96px; } /* فاصله‌ی اضافه چون نوار CTA پایین صفحه هست */
  .footer-grid{ grid-template-columns:repeat(2, minmax(0,1fr)); row-gap:26px; column-gap:16px; }
  .footer-brand{ grid-column:1 / -1; }
  .footer-brand p{ font-size:13px; max-width:none; }
  .footer-col h5{ font-size:12px; margin-bottom:14px; }
  .footer-col a{ font-size:13px; }
  .footer-bottom{ flex-direction:column; gap:10px; text-align:center; margin-top:32px; font-size:11.5px; }
  .footer-col, .footer-col a, .order-meta-row span{ overflow-wrap:anywhere; }

  .to-top{ bottom:88px; width:42px; height:42px; } /* بالای نوار CTA بمونه، روش سوار نشه */

  .mobile-cta-bar{ display:block; }
}

/* گوشی‌های خیلی کوچیک (۳۲۰–۳۹۹px): همون دو ستون، فقط کمی فشرده‌تر تا هیچی از صفحه بیرون نزنه */
@media (max-width:400px){
  .container{ padding-inline:14px; }
  .services-grid, .portfolio-grid, .why-grid{ gap:8px; }
  .service-card{ padding:14px 12px; }
  .service-card h3{ font-size:13px; }
  .why-item{ padding:14px 12px; }
  .process-steps{ column-gap:10px; }
  .hero-tags span{ font-size:10px; padding:5px 9px; }
  .service-code, .course-level{ font-size:10px; }
  .hero-art{ max-width:250px; }
}

/* از ۴۸۰px به بالا (تا سقف ۷۶۰px)، دوره‌ها و چیپ‌های دوره هم دوستونه می‌شن چون جا باز می‌شه */
@media (min-width:480px) and (max-width:760px){
  .courses-grid{ grid-template-columns:repeat(2, minmax(0,1fr)); }
}