/* =========================================================
   طرح توان انرژی — dark engineering theme, rounded panel layout
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Vazirmatn:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root{
  --bg:            #03060a;
  --bg-soft:       #060c13;
  --surface:       #0c151f;
  --surface-2:     #101c28;
  --line:          #1f2e3c;
  --line-soft:     #182430;
  --text:          #f3f6f8;
  --text-dim:      #a2b2c0;
  --text-faint:    #647686;
  --accent:        #2ad4ea;
  --accent-2:      #8a9af8;
  --accent-soft:   rgba(42,212,234,.14);
  --danger:        #d16b5a;
  --head-h:        70px;
  --r-sm:          10px;
  --r:             18px;
  --r-lg:          26px;
  --r-pill:        999px;
  --maxw:          1180px;
}

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

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Vazirmatn', sans-serif;
  font-size:16px;
  line-height:1.85;
  direction:rtl;
  -webkit-font-smoothing:antialiased;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }

.mono{ font-family:'JetBrains Mono', monospace; direction:ltr; unicode-bidi:isolate; }
::selection{ background:var(--accent); color:#062430; }

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible{
  outline:2px solid var(--accent); outline-offset:3px;
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}

.wrap{ max-width:var(--maxw); margin:0 auto; padding:0 26px; }
.wrap-full{ width:100%; margin:0 auto; padding:0 clamp(26px, 5vw, 80px); }

/* ================= site header (overlay on hero / solid on inner) ============= */
.site-head{
  position:fixed; top:0; right:0; left:0; z-index:70;
  background:rgba(8,14,21,.82);
  backdrop-filter:blur(18px) saturate(1.3);
  border-bottom:1px solid rgba(255,255,255,.09);
  padding:11px 0;
  transition:background .25s ease, padding .25s ease, box-shadow .25s ease;
}
.site-head.stuck{
  background:rgba(6,11,18,.96);
  box-shadow:0 10px 34px rgba(0,0,0,.55);
  padding:7px 0;
}
.site-head .wrap{ display:flex; align-items:center; justify-content:space-between; gap:22px; max-width:none; width:100%; padding:0 clamp(20px, 3.4vw, 56px); }

.site-head--solid{ }


.brand{ display:flex; align-items:center; gap:13px; flex-shrink:0; }
.brand-mark{
  width:50px; height:50px; flex-shrink:0; object-fit:contain;
  transition:transform .2s ease;
}
.brand:hover .brand-mark{ transform:translateY(-2px); }
.brand-mark{ width:46px; height:46px; }
.brand-text{ display:flex; flex-direction:column; line-height:1.3; }
.brand-text b{ font-size:16px; font-weight:800; }
.brand-text span{ font-size:10px; color:var(--text-dim); font-family:'JetBrains Mono',monospace; direction:ltr; letter-spacing:.1em; }

.nav-links{ display:flex; align-items:center; gap:2px; }

/* --- dropdown navigation --- */
.nav-item{ position:relative; }
.nav-parent{
  display:inline-flex; align-items:center; gap:6px;
  font-family:inherit; font-size:14.5px; color:var(--text-dim);
  background:none; border:0; cursor:pointer;
  padding:9px 14px; border-radius:999px; transition:.18s;
}
.nav-parent svg{ width:13px; height:13px; transition:transform .22s ease; }
.nav-parent:hover, .nav-item.is-open .nav-parent{ color:#fff; background:rgba(255,255,255,.08); }
.nav-item.is-open .nav-parent svg{ transform:rotate(180deg); }
.nav-parent.active{ background:var(--accent); color:#062430; font-weight:700; }

.nav-sub{
  position:absolute; top:calc(100% + 10px); right:0; z-index:80;
  min-width:264px; padding:8px;
  background:rgba(8,15,22,.97); backdrop-filter:blur(16px);
  border:1px solid var(--line); border-radius:var(--r);
  box-shadow:0 22px 50px rgba(0,0,0,.55);
  display:flex; flex-direction:column; gap:2px;
  opacity:0; visibility:hidden; transform:translateY(-8px);
  transition:opacity .2s ease, transform .2s ease, visibility .2s;
}
.nav-item.is-open .nav-sub{ opacity:1; visibility:visible; transform:none; }
.nav-sub a{
  display:block; padding:10px 14px; border-radius:var(--r-sm);
  font-size:14px; color:var(--text-dim); white-space:nowrap; transition:.16s;
}
.nav-sub a:hover{ color:#fff; background:var(--accent-soft); }
.nav-sub a.active{ color:var(--accent); background:var(--accent-soft); font-weight:700; }
.nav-sub-all{
  color:var(--accent) !important; font-size:12.5px !important;
  border-bottom:1px solid var(--line-soft); border-radius:0 !important;
  margin-bottom:4px; padding-bottom:12px !important;
}
.nav-links a{
  padding:10px 18px; font-size:14.5px; color:rgba(238,242,245,.82);
  border-radius:var(--r-pill); transition:.18s ease; display:block; white-space:nowrap;
}
.nav-links a:hover{ color:#fff; background:rgba(255,255,255,.08); }
.nav-links a.active{ background:var(--accent); color:#062430; font-weight:700; }

.quick-icons{ display:flex; gap:10px; flex-shrink:0; }
.quick-icons a{
  width:46px; height:46px; border-radius:14px;
  border:1px solid rgba(255,255,255,.16); background:rgba(255,255,255,.07);
  backdrop-filter:blur(8px);
  display:flex; align-items:center; justify-content:center;
  color:#dfe8ee; transition:.18s ease;
}
.quick-icons a:hover{ color:var(--accent); border-color:var(--accent); transform:translateY(-2px); }
.quick-icons svg{ width:19px; height:19px; }

.nav-toggle{
  display:none; background:rgba(255,255,255,.07); border:1px solid rgba(255,255,255,.16);
  color:var(--text); width:46px; height:46px; border-radius:14px; cursor:pointer;
}
.nav-toggle span{ display:block; width:19px; height:2px; background:currentColor; margin:4px auto; border-radius:2px; }


/* ================= buttons ============= */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  padding:13px 27px; font-weight:700; font-size:14.5px;
  border-radius:var(--r-pill); border:1px solid transparent; cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease, color .18s ease;
}
.btn-primary{ background:var(--accent); color:#062430; }
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 10px 26px rgba(34,199,221,.28); }
.btn-ghost{ border-color:var(--line); color:var(--text); background:rgba(255,255,255,.03); }
.btn-ghost:hover{ border-color:var(--accent); color:var(--accent); transform:translateY(-2px); }

/* small circular-arrow pill link, like "مشاهده بیشتر" */
.more-link{
  display:inline-flex; align-items:center; gap:9px;
  border:1px solid var(--line); border-radius:var(--r-pill);
  padding:8px 8px 8px 18px; font-size:13.5px; color:var(--text-dim);
  transition:.18s ease;
}
.more-link i{
  width:26px; height:26px; border-radius:50%; background:var(--accent-soft); color:var(--accent);
  display:flex; align-items:center; justify-content:center; font-style:normal; font-size:14px;
}
.more-link:hover{ border-color:var(--accent); color:var(--text); }

/* ================= section scaffolding ============= */
section{ padding:76px 0; }
.section-head{ max-width:640px; margin-bottom:40px; }
.section-head h2{ font-size:clamp(26px,3.4vw,38px); font-weight:800; margin:0 0 12px; letter-spacing:-.01em; }
.section-head p{ color:var(--text-dim); margin:0; font-size:16px; }

.eyebrow{
  display:block;
  font-family:'JetBrains Mono', monospace; font-size:12px; letter-spacing:.16em;
  color:var(--accent); text-transform:uppercase; direction:ltr; margin-bottom:14px;
}

/* ================= full-bleed hero ============= */
.hero{
  position:relative;
  min-height:calc(100vh - var(--head-h));
  min-height:calc(100svh - var(--head-h));
  display:flex; flex-direction:column;
  padding:40px 0 0; overflow:hidden;
}
.hero-bg{
  position:absolute; inset:0; z-index:0; overflow:hidden;
  transform:translateZ(0);
}
.hero-bg img{
  width:100%; height:100%; object-fit:cover; object-position:center; opacity:1;
  transform-origin:50% 50%;
  transform:scale3d(1,1,1);
  backface-visibility:hidden;
  -webkit-backface-visibility:hidden;
  animation:hero-zoom 12s linear forwards;
  will-change:transform;
}
@keyframes hero-zoom{
  from{ transform:scale3d(1,1,1); }
  to{ transform:scale3d(1.14,1.14,1); }
}
@media (prefers-reduced-motion:reduce){
  .hero-bg img{ animation:none; transform:none; }
}
.hero-bg::after{
  content:""; position:absolute; inset:0;
  background:
    linear-gradient(270deg, rgba(4,8,14,.92) 2%, rgba(4,8,14,.62) 34%, rgba(4,8,14,.12) 66%, rgba(4,8,14,.35) 100%),
    linear-gradient(0deg, rgba(4,8,14,.88) 0%, rgba(4,8,14,.1) 42%, transparent 62%);
}
.hero .wrap{ position:relative; z-index:2; width:100%; flex:1; display:flex; align-items:center; }

.hero-copy{ max-width:640px; }
.hero-copy .eyebrow{ margin-bottom:20px; }
.hero-copy h1{
  font-size:clamp(34px,5.2vw,62px); line-height:1.24; font-weight:800;
  margin:0 0 22px; letter-spacing:-.02em; text-shadow:0 3px 26px rgba(0,0,0,.5);
}
.hero-copy h1 em{ color:var(--accent); font-style:normal; }
.hero-copy p.lead{
  color:#c6d2da; font-size:17.5px; max-width:520px; margin:0 0 34px;
  text-shadow:0 2px 14px rgba(0,0,0,.5);
}
.hero-ctas{ display:flex; gap:13px; flex-wrap:wrap; }
.btn-arrow i{
  width:26px; height:26px; border-radius:50%; background:rgba(0,0,0,.16);
  display:flex; align-items:center; justify-content:center; font-style:normal; font-size:15px;
}

/* glass stat cards floating over the bottom of the photo */
.stat-strip{
  position:relative; z-index:3; flex-shrink:0;
  width:100%; max-width:var(--maxw); margin:0 auto; padding:0 26px 26px;
  display:grid; grid-template-columns:repeat(4,1fr); gap:14px;
}
.stat-strip > div{
  background:rgba(10,18,27,.62);
  border:1px solid rgba(255,255,255,.13);
  border-radius:var(--r);
  backdrop-filter:blur(16px);
  padding:22px 24px;
  display:flex; align-items:center; gap:16px;
  transition:.22s ease;
}
.stat-strip > div:hover{
  background:rgba(14,24,35,.78); border-color:var(--accent);
  transform:translateY(-4px); box-shadow:0 14px 32px rgba(0,0,0,.4);
}
.stat-strip .s-ico{
  width:38px; height:38px; color:var(--accent); flex-shrink:0; stroke-width:1.4;
}
.stat-strip .s-txt{ display:flex; flex-direction:column; min-width:0; }
.stat-strip b{
  font-family:'JetBrains Mono',monospace; font-size:30px; font-weight:700;
  direction:ltr; line-height:1.05; color:#fff; margin-bottom:4px;
}
.stat-strip span{ font-size:13px; color:#b3c4d1; line-height:1.5; }


/* ================= field / حوزه image cards ============= */
.field-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.field-card{
  position:relative; border-radius:var(--r); overflow:hidden;
  border:1px solid var(--line); min-height:290px;
  display:flex; align-items:flex-end;
  background:linear-gradient(165deg, #0d1721 0%, #0a121b 100%);
  transition:border-color .25s ease, transform .25s ease;
}
.field-card::after{
  content:""; position:absolute; inset:0; z-index:1; pointer-events:none;
  background:linear-gradient(0deg, rgba(6,11,18,.92) 6%, rgba(6,11,18,.25) 52%, transparent 78%);
}
.field-card:hover{ transform:translateY(-4px); border-color:var(--accent); }
.field-card .scene-canvas{
  position:absolute; inset:0; z-index:0;
  width:100%; height:100%; display:block;
}
.field-meta{ position:relative; z-index:2; padding:24px 26px 24px; width:100%; }
.field-card .tag{
  display:inline-block; font-family:'JetBrains Mono',monospace;
  font-size:11px; letter-spacing:.12em; color:var(--accent);
  margin-bottom:8px;
}
.field-card h3{
  margin:0 0 6px; font-size:19px; font-weight:800; color:#fff;
  text-shadow:0 2px 14px rgba(0,0,0,.7);
}
.field-card p{
  margin:0; font-size:13.5px; color:#a9bccb;
  text-shadow:0 2px 12px rgba(0,0,0,.7);
}

/* ================= EPC-style split list ============= */
.split{ display:grid; grid-template-columns:.85fr 1.15fr; gap:56px; align-items:start; }
.split-title{ font-size:clamp(28px,3.6vw,44px); font-weight:800; line-height:1.35; margin:0; letter-spacing:-.01em; }
.split-title em{ color:var(--accent); font-style:normal; }
.split-note{ color:var(--text-dim); font-size:15.5px; margin-top:18px; }

.split-item{ display:grid; grid-template-columns:66px 1fr; gap:22px; padding:26px 0; border-top:1px solid var(--line); }
.split-item:first-child{ border-top:none; padding-top:0; }
.split-item .glyph{ width:66px; height:66px; color:var(--accent); opacity:.9; }
.split-item h3{ margin:0 0 9px; font-size:18.5px; font-weight:700; }
.split-item p{ margin:0 0 14px; color:var(--text-dim); font-size:14.8px; }

/* ================= cards ============= */
.grid{ display:grid; gap:20px; }
.grid-2{ grid-template-columns:repeat(2,1fr); }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }

.card{
  background:var(--surface); border:1px solid var(--line);
  border-radius:var(--r); padding:30px 27px; position:relative;
  transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.card:hover{ transform:translateY(-5px); border-color:var(--accent); box-shadow:0 18px 38px rgba(34,199,221,.10); }
.card .num{
  font-family:'JetBrains Mono',monospace; font-size:11.5px; color:var(--accent);
  display:inline-block; margin-bottom:16px; direction:ltr;
  background:var(--accent-soft); padding:5px 13px; border-radius:var(--r-pill);
}
.card h3{ font-size:18.5px; font-weight:700; margin:0 0 12px; }
.card p{ color:var(--text-dim); font-size:14.8px; margin:0 0 14px; }
.card ul li{ font-size:14.5px; color:var(--text-dim); padding:7px 0; border-top:1px dashed var(--line); }
.card ul li:first-child{ border-top:none; }

/* ================= tables ============= */
.table-wrap{ overflow-x:auto; border:1px solid var(--line); border-radius:var(--r); background:var(--surface); }
table{ width:100%; border-collapse:collapse; font-size:14.5px; min-width:640px; }
thead th{
  text-align:right; padding:15px 20px; background:var(--surface-2);
  font-family:'JetBrains Mono',monospace; font-size:11.5px; letter-spacing:.06em;
  color:var(--accent); text-transform:uppercase; border-bottom:1px solid var(--line); white-space:nowrap;
}
tbody td{ padding:15px 20px; border-bottom:1px solid var(--line-soft); color:var(--text-dim); vertical-align:top; }
tbody tr:last-child td{ border-bottom:none; }
tbody tr:hover td{ background:rgba(255,255,255,.03); color:var(--text); }
tbody td.n{ font-family:'JetBrains Mono',monospace; color:var(--text-faint); direction:ltr; text-align:right; }

/* ================= info list ============= */
.info-list{
  display:grid; grid-template-columns:1fr 1fr; gap:0;
  border:1px solid var(--line); border-radius:var(--r); overflow:hidden; background:var(--surface);
}
.info-list div{ padding:19px 24px; border-bottom:1px solid var(--line-soft); }
.info-list div:nth-child(odd){ border-left:1px solid var(--line-soft); }
.info-list b{ display:block; font-size:11.5px; color:var(--text-faint); font-family:'JetBrains Mono',monospace; letter-spacing:.05em; margin-bottom:6px; }
.info-list span{ font-size:15px; }

/* ================= people ============= */
.person{
  border:1px solid var(--line); background:var(--surface); border-radius:var(--r);
  padding:27px; display:flex; gap:20px; align-items:flex-start;
  transition:.25s ease;
}
.person:hover{ border-color:var(--accent); transform:translateY(-4px); }
.person .avatar{
  width:64px; height:64px; border-radius:50%; flex-shrink:0;
  background:var(--accent-soft); border:1px solid var(--line);
  display:flex; align-items:center; justify-content:center;
  font-family:'JetBrains Mono',monospace; font-weight:700; color:var(--accent); font-size:17px;
}
.person h3{ margin:0 0 4px; font-size:16.5px; font-weight:700; }
.person .role{ font-size:12.5px; color:var(--accent); font-family:'JetBrains Mono',monospace; margin-bottom:10px; display:block; }
.person p{ margin:0; font-size:14px; color:var(--text-dim); }
.person ul{ margin-top:9px; }
.person ul li{ font-size:13.5px; color:var(--text-dim); padding:3px 0; position:relative; padding-right:15px; }
.person ul li::before{ content:"—"; position:absolute; right:0; color:var(--text-faint); }

/* ================= timeline ================= */
.timeline{ position:relative; padding-right:26px; border-right:1px solid var(--line); }
.timeline .t-item{ position:relative; padding-bottom:34px; }
.timeline .t-item:last-child{ padding-bottom:0; }
.timeline .t-item::before{
  content:""; position:absolute; right:-31px; top:5px; width:9px; height:9px;
  background:var(--bg); border:2px solid var(--accent); border-radius:50%;
}
.timeline .t-year{ font-family:'JetBrains Mono',monospace; color:var(--accent); font-size:13px; margin-bottom:6px; display:block; }
.timeline h4{ margin:0 0 6px; font-size:16px; }
.timeline p{ margin:0; color:var(--text-dim); font-size:14.5px; }

/* ================= values ================= */
.value-block{
  border:1px solid var(--line); border-radius:var(--r); background:var(--surface);
  padding:26px 28px; margin-bottom:16px;
}
.value-block h3{ font-size:18px; color:var(--accent); margin:0 0 14px; }
.value-block ol{ margin:0; padding-right:20px; color:var(--text-dim); font-size:14.8px; }
.value-block ol li{ padding:5px 0; }

/* ================= long-form article content (fields / services real copy) ================= */
.article-body{ max-width:820px; }
.article-body > p{ color:var(--text-dim); font-size:15.8px; line-height:2.05; margin:0 0 22px; }
.article-body h3{
  font-size:20px; font-weight:800; color:var(--text); margin:44px 0 16px;
  padding-top:26px; border-top:1px solid var(--line-soft);
}
.article-body > h3:first-child{ margin-top:0; padding-top:0; border-top:none; }
.article-body h4{
  font-size:15.5px; font-weight:700; color:var(--accent); margin:26px 0 12px;
}
.article-body ul{ margin:0 0 20px; padding:0; list-style:none; }
.article-body ul ul{ margin:10px 0 6px; padding-right:26px; }
.article-body li{
  position:relative; padding-right:22px; margin-bottom:12px;
  color:var(--text-dim); font-size:15px; line-height:1.95;
}
.article-body li::before{
  content:""; position:absolute; right:0; top:9px; width:6px; height:6px;
  border-radius:50%; background:var(--accent); opacity:.8;
}
.article-body li > ul{ margin-top:12px; }
.article-body li b, .article-body p b{ color:var(--text); font-weight:700; }
.article-body em{ color:var(--text-faint); font-style:normal; font-size:13.5px; }
.article-body strong{ color:var(--text); }

/* ================= topic pages (fields / services / articles) ================= */
.plate-art{ width:100%; height:auto; color:var(--accent); display:block; }

.topic-intro{
  display:grid; grid-template-columns:1fr 1fr; gap:clamp(28px,4vw,56px); align-items:center;
  border:1px solid var(--line); border-radius:var(--r-lg); overflow:hidden;
  background:rgba(11,18,27,.9);
}
.topic-art{
  padding:clamp(24px,3vw,42px);
  background:
    linear-gradient(rgba(31,46,60,.42) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31,46,60,.42) 1px, transparent 1px),
    radial-gradient(600px 300px at 70% 25%, rgba(34,199,221,.09), transparent 65%);
  background-size:34px 34px, 34px 34px, 100% 100%;
  border-left:1px solid var(--line);
}
.topic-text{ padding:clamp(26px,3vw,44px) clamp(24px,3vw,40px); }
.topic-text .eyebrow{ margin-bottom:14px; }
.topic-text p{ margin:0; color:var(--text-dim); font-size:15.5px; line-height:2.1; }

.split-num{
  font-size:12px; color:var(--accent); letter-spacing:.08em;
  padding-top:4px; text-align:center;
}

/* landing grids */
.topic-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.topic-card{
  display:flex; flex-direction:column; overflow:hidden;
  border:1px solid var(--line); border-radius:var(--r-lg);
  background:rgba(11,18,27,.92); transition:.2s; color:inherit;
}
.topic-card:hover{ border-color:var(--accent); transform:translateY(-3px); }
.topic-card-art{
  padding:22px 20px; border-bottom:1px solid var(--line);
  background:
    linear-gradient(rgba(31,46,60,.4) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31,46,60,.4) 1px, transparent 1px);
  background-size:30px 30px, 30px 30px;
}
.topic-card-body{ padding:24px 24px 26px; display:flex; flex-direction:column; flex:1; }
.topic-card-body .eyebrow{ margin-bottom:12px; font-size:10.5px; }
.topic-card-body h3{ margin:0 0 12px; font-size:18px; font-weight:700; line-height:1.6; }
.topic-card-body p{ margin:0 0 18px; color:var(--text-dim); font-size:14.3px; line-height:1.95; flex:1; }
.topic-card-go{ font-size:13.5px; color:var(--accent); display:inline-flex; align-items:center; gap:7px; }
.topic-card-go i{ font-style:normal; transition:transform .2s ease; }
.topic-card:hover .topic-card-go i{ transform:translateX(-4px); }

@media (max-width:980px){
  .topic-grid{ grid-template-columns:repeat(2,1fr); }
  .topic-intro{ grid-template-columns:1fr; }
  .topic-art{ border-left:none; border-bottom:1px solid var(--line); }
}
@media (max-width:640px){
  .topic-grid{ grid-template-columns:1fr; }
}

/* ================= technical figures (home page drawing plates) ================= */
.tech-showcase{ border-top:1px solid var(--line-soft); }

/* --- figure plate --- */
.tech-fig{ border-bottom:1px solid var(--line-soft); background:var(--bg-soft); }
.tech-fig:nth-of-type(even){ background:#04080d; }

.tech-fig-rail{
  display:flex; justify-content:space-between; align-items:center; gap:16px; flex-wrap:wrap;
  padding:14px clamp(20px,3.4vw,56px);
  border-bottom:1px solid var(--line-soft);
  font-size:11px; color:var(--text-faint); letter-spacing:.09em; text-transform:uppercase;
}
.tech-fig-rail span:last-child{ direction:ltr; }

.tech-fig-grid{ display:grid; grid-template-columns:1.15fr .85fr; align-items:stretch; }
.tech-fig--flip .tech-stage{ order:2; }
.tech-fig--flip .tech-fig-body{ order:1; }

/* --- drawing stage --- */
.tech-stage{
  position:relative; min-height:clamp(380px, 52vh, 560px);
  overflow:hidden; cursor:grab; touch-action:pan-y;
  background-color:#03070c;
  background-image:
    linear-gradient(rgba(31,46,60,.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31,46,60,.5) 1px, transparent 1px),
    radial-gradient(800px 420px at 70% 25%, rgba(34,199,221,.08), transparent 65%);
  background-size:44px 44px, 44px 44px, 100% 100%;
}
.tech-stage.is-dragging{ cursor:grabbing; }
.tech-stage canvas{ position:absolute; inset:0; width:100%; height:100%; }

.tech-stage-corner{ position:absolute; width:14px; height:14px; border:1px solid var(--accent); opacity:.5; }
.tech-stage-corner.tl{ top:14px; left:14px; border-right:none; border-bottom:none; }
.tech-stage-corner.tr{ top:14px; right:14px; border-left:none; border-bottom:none; }
.tech-stage-corner.bl{ bottom:14px; left:14px; border-right:none; border-top:none; }
.tech-stage-corner.br{ bottom:14px; right:14px; border-left:none; border-top:none; }

.tech-stage-hint{
  position:absolute; bottom:16px; left:50%; transform:translateX(-50%);
  font-size:10.5px; color:var(--text-faint); letter-spacing:.08em;
  background:rgba(3,7,12,.8); border:1px solid var(--line-soft); border-radius:999px;
  padding:6px 14px; z-index:4; transition:opacity .4s ease; pointer-events:none;
}
.tech-stage-hint.is-gone{ opacity:0; }

/* --- projected component labels --- */
.tech-labels{ position:absolute; inset:0; z-index:3; pointer-events:none; }
.tech-leaders{ position:absolute; inset:0; width:100%; height:100%; overflow:visible; }
.tech-leader{ stroke:var(--accent); stroke-width:1; opacity:.32; transition:opacity .25s ease; }

.tech-label{
  position:absolute; top:0; left:0; pointer-events:auto;
  display:inline-flex; align-items:center; gap:8px; white-space:nowrap;
  font-family:inherit; font-size:11.5px; color:var(--text-dim);
  background:rgba(3,7,12,.86); border:1px solid var(--line);
  border-radius:999px; padding:6px 13px; cursor:pointer;
  transition:color .2s ease, border-color .2s ease, background .2s ease, opacity .3s ease;
}
.tech-label i{ font-size:9.5px; color:var(--accent); font-style:normal; letter-spacing:.06em; }
.tech-label:hover, .tech-label.is-on{ color:#fff; border-color:var(--accent); background:rgba(6,16,23,.95); }

/* --- copy side --- */
.tech-fig-body{
  display:flex; flex-direction:column; justify-content:center;
  padding:clamp(36px,4.6vw,68px) clamp(26px,4vw,64px);
  border-right:1px solid var(--line-soft);
}
.tech-fig--flip .tech-fig-body{ border-right:none; border-left:1px solid var(--line-soft); }
.tech-fig-body .eyebrow{ margin-bottom:16px; }
.tech-fig-body h3{
  font-size:clamp(24px,2.7vw,36px); font-weight:800; line-height:1.42;
  margin:0 0 18px; letter-spacing:-.015em;
}
.tech-fig-body > p{
  color:var(--text-dim); font-size:15.5px; line-height:2.05; margin:0 0 30px; max-width:48ch;
}

.tech-data{ margin:0 0 26px; }
.tech-data > div{
  display:flex; align-items:baseline; justify-content:space-between; gap:20px;
  padding:13px 0; border-top:1px solid var(--line-soft);
}
.tech-data > div:last-child{ border-bottom:1px solid var(--line-soft); }
.tech-data dt{ font-size:12.5px; color:var(--text-faint); margin:0; letter-spacing:.02em; }
.tech-data dd{
  margin:0; font-size:14.5px; color:var(--accent); direction:ltr; text-align:left;
  letter-spacing:.02em; white-space:nowrap;
}

.tech-parts{ display:flex; flex-wrap:wrap; gap:8px; }
.tech-chip{
  display:inline-flex; align-items:center; gap:7px;
  font-family:inherit; font-size:12px; color:var(--text-dim);
  background:transparent; border:1px solid var(--line); border-radius:999px;
  padding:7px 14px; cursor:pointer; transition:.18s;
}
.tech-chip i{ font-size:9.5px; color:var(--accent); font-style:normal; }
.tech-chip:hover, .tech-chip.is-on{ color:#fff; border-color:var(--accent); background:var(--accent-soft); }

@media (max-width:980px){
  .tech-fig-grid, .tech-fig--flip .tech-fig-grid{ grid-template-columns:1fr; }
  .tech-stage, .tech-fig--flip .tech-stage{ order:1; min-height:340px; }
  .tech-fig-body, .tech-fig--flip .tech-fig-body{
    order:2; border-right:none; border-left:none; border-top:1px solid var(--line-soft);
  }
  .tech-data dd{ white-space:normal; }
  .tech-label{ font-size:10.5px; padding:5px 10px; }
}

/* ================= CTA strip (full-bleed, no boxed frame) ================= */
.cta-strip{
  position:relative; overflow:hidden;
  background:var(--bg-soft);
  border-top:1px solid var(--line-soft); border-bottom:1px solid var(--line-soft);
}
.cta-strip::before{
  content:""; position:absolute; inset:0;
  background:
    radial-gradient(1100px 420px at 85% 0%, rgba(34,199,221,.14), transparent 60%),
    radial-gradient(900px 400px at 8% 100%, rgba(124,140,246,.10), transparent 60%);
  pointer-events:none;
}
.cta-banner{
  position:relative; z-index:2;
  display:flex; align-items:center; justify-content:space-between; gap:36px; flex-wrap:wrap;
}
.cta-banner h2{ margin:0 0 10px; font-size:clamp(24px,2.6vw,32px); font-weight:800; letter-spacing:-.01em; }
.cta-banner p{ margin:0; color:var(--text-dim); font-size:16.5px; max-width:640px; }

/* ================= page hero (inner pages) ================= */
.page-hero{ padding:132px 0 8px; }


.page-hero h1{ font-size:clamp(27px,3.8vw,42px); font-weight:800; margin:0 0 14px; position:relative; z-index:2; }
.page-hero p{ color:var(--text-dim); max-width:610px; margin:0; font-size:16px; position:relative; z-index:2; }
.crumb{
  font-family:'JetBrains Mono',monospace; font-size:11.5px; color:var(--text-faint);
  margin-bottom:14px; direction:ltr; display:block;
}
.crumb b{ color:var(--accent); font-weight:700; }

/* ================= forms ================= */
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.field{ display:flex; flex-direction:column; gap:8px; margin-bottom:16px; }
.field.full{ grid-column:1/-1; }
.field label{ font-size:13px; color:var(--text-dim); }
.field input, .field textarea, .field select{
  background:var(--bg-soft); border:1px solid var(--line); color:var(--text);
  padding:14px 16px; font-family:'Vazirmatn',sans-serif; font-size:14.5px;
  border-radius:var(--r-sm); transition:border-color .18s ease;
}
.field textarea{ resize:vertical; }
.field input:focus, .field textarea:focus, .field select:focus{ border-color:var(--accent); outline:none; }
.field .err{ color:var(--danger); font-size:12.5px; display:none; }
.field.invalid input, .field.invalid textarea, .field.invalid select{ border-color:var(--danger); }
.field.invalid .err{ display:block; }
.form-note{ font-size:13px; color:var(--text-faint); margin-top:12px; }
.form-success{
  display:none; background:var(--accent-soft); border:1px solid var(--accent); color:var(--accent);
  padding:16px 20px; font-size:14px; margin-bottom:20px; border-radius:var(--r-sm);
}
.form-success.show{ display:block; }

/* ================= contact ================= */
.contact-grid{ display:grid; grid-template-columns:.9fr 1.1fr; gap:44px; }
.contact-card{ background:var(--surface); border:1px solid var(--line); border-radius:var(--r); padding:10px 26px; }
.contact-item{ display:flex; gap:16px; padding:20px 0; border-top:1px solid var(--line-soft); }
.contact-item:first-child{ border-top:none; }
.contact-item .ic{ width:20px; height:20px; color:var(--accent); flex-shrink:0; margin-top:4px; }
.contact-item b{ display:block; font-size:11.5px; color:var(--text-faint); font-family:'JetBrains Mono',monospace; margin-bottom:5px; letter-spacing:.05em; }
.contact-item span{ font-size:15px; color:var(--text); }

/* ================= rounded photo frame ================= */
.photo-frame{
  position:relative; border:1px solid var(--line); border-radius:var(--r);
  overflow:hidden; background:var(--bg-soft); aspect-ratio:16/9;
}
.photo-frame img{ width:100%; height:100%; object-fit:cover; filter:grayscale(.35) brightness(.72) contrast(1.12); }
.photo-frame::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(155deg, rgba(12,20,29,.05), rgba(12,20,29,.72));
  pointer-events:none;
}
.frame-caption{
  position:absolute; z-index:3; right:18px; left:18px; bottom:16px;
  display:flex; align-items:center; justify-content:space-between; font-size:12px; color:var(--text-dim);
}
.frame-caption .mono{ color:var(--accent); }
.node-pulse{ transform-box:fill-box; transform-origin:center; animation:pulse-dot 2.8s ease-in-out infinite; }
@keyframes pulse-dot{ 0%,100%{ opacity:.55; transform:scale(1); } 50%{ opacity:1; transform:scale(1.3); } }
.tag-label{ font-family:'JetBrains Mono',monospace; font-size:9.5px; fill:var(--text-faint); letter-spacing:.05em; }

/* ================= footer: full-bleed strip, no boxed frame ================= */
footer{
  padding:64px 0 34px; margin-top:6px;
  background:linear-gradient(180deg, var(--bg-soft), var(--bg) 70%);
  border-top:1px solid var(--line-soft);
  position:relative; overflow:hidden;
}
footer::before{
  content:""; position:absolute; top:0; right:8%; width:46%; height:2px;
  background:linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity:.5;
}
.foot-grid{ display:grid; grid-template-columns:1.35fr .9fr .9fr .8fr .8fr; gap:clamp(22px,3vw,48px); margin-bottom:40px; }
.foot-grid h4{
  font-size:13.5px; color:var(--accent); margin:0 0 20px; font-weight:700;
  letter-spacing:.03em; position:relative; padding-bottom:12px;
}
.foot-grid h4::after{
  content:""; position:absolute; bottom:0; right:0; width:26px; height:2px;
  background:var(--accent); border-radius:2px; opacity:.7;
}
.foot-grid p{ color:var(--text-dim); font-size:14.5px; margin:0 0 10px; line-height:1.95; }
.foot-grid ul li{ margin-bottom:12px; }
.foot-grid ul a{ color:var(--text-dim); font-size:14.5px; transition:.18s; display:inline-block; }
.foot-grid ul a:hover{ color:var(--accent); transform:translateX(-4px); }
.foot-bottom{
  border-top:1px solid var(--line-soft); padding-top:24px;
  display:flex; justify-content:space-between; color:var(--text-faint); font-size:13px; flex-wrap:wrap; gap:10px;
}
.foot-bottom .mono{ direction:ltr; }

/* ================= reveal ================= */
.reveal{ opacity:0; transform:translateY(16px); transition:opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform:none; }

/* ================= responsive ================= */
@media (max-width:1000px){
  .split{ grid-template-columns:1fr; gap:34px; }
  .field-grid{ grid-template-columns:repeat(2,1fr); }
  .stat-strip{ grid-template-columns:repeat(2,1fr); }
  .grid-3, .grid-4{ grid-template-columns:repeat(2,1fr); }
  .contact-grid{ grid-template-columns:1fr; }
  .foot-grid{ grid-template-columns:1fr 1fr; }
}
@media (max-width:980px){
  .nav-links{ display:none; }
  .nav-toggle{ display:block; }
  .site-head.open .nav-links{
    display:flex; flex-direction:column; align-items:stretch; gap:3px;
    position:absolute; top:100%; right:26px; left:26px;
    background:rgba(12,20,29,.97); backdrop-filter:blur(14px);
    border:1px solid var(--line); border-radius:var(--r); padding:12px;
  }
  .site-head.open .nav-links a{ text-align:right; border-radius:var(--r-sm); }

  .nav-item{ position:static; }
  .nav-parent{ width:100%; justify-content:space-between; border-radius:var(--r-sm); }
  .nav-sub{
    position:static; opacity:1; visibility:visible; transform:none;
    min-width:0; background:transparent; border:0; box-shadow:none;
    padding:2px 12px 8px 0; margin:0 6px 4px 0;
    border-right:1px solid var(--line); border-radius:0;
    display:none;
  }
  .nav-item.is-open .nav-sub{ display:flex; }
  .nav-sub a{ white-space:normal; font-size:13.5px; padding:9px 12px; }
  .nav-sub-all{ padding-bottom:10px !important; }
  .stat-strip{ grid-template-columns:repeat(2,1fr); margin-top:40px; padding:0 26px; }
  .hero{ min-height:auto; padding:130px 0 60px; }
  .hero .wrap{ flex:none; }
  .site-head .wrap{ gap:10px; padding:0 16px; }
}
@media (max-width:760px){
  .hero{ padding:120px 0 56px; }
  .hero-copy h1{ font-size:clamp(28px,8vw,40px); }
  .stat-strip{ grid-template-columns:1fr; }
  .stat-strip > div{ padding:18px 20px; }
  .quick-icons a, .nav-toggle{ width:42px; height:42px; }
  .quick-icons{ gap:7px; }
  .quick-icons a:nth-child(2){ display:none; }
  .brand-text span{ display:none; }
  .brand-mark{ width:40px; height:40px; }
  .grid-2, .grid-3, .grid-4, .field-grid, .stat-strip{ grid-template-columns:1fr; }
  .info-list{ grid-template-columns:1fr; }
  .info-list div:nth-child(odd){ border-left:none; }
  .form-grid{ grid-template-columns:1fr; }
  .cta-banner{ flex-direction:column; align-items:flex-start; }
  footer{ padding:44px 0 26px; }
  .foot-grid{ grid-template-columns:1fr; gap:30px; }
  .split-item{ grid-template-columns:48px 1fr; gap:16px; }
  .split-item .glyph{ width:48px; height:48px; }
  section{ padding:56px 0; }
  .brand-text b{ font-size:15px; }
}

/* ================= contact map panel ================= */
.map-panel{
  margin-top:20px; border:1px solid var(--line); border-radius:var(--r);
  background:var(--bg-soft); aspect-ratio:16/9; position:relative; overflow:hidden;
}
.map-panel::before{
  content:""; 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:26px 26px; opacity:.5;
}
.map-panel svg{ position:relative; width:100%; height:100%; }

/* ================= footer ================= */
.foot-brand{ display:flex; align-items:center; gap:15px; margin-bottom:18px; }
.foot-brand img{
  width:58px; height:58px; object-fit:contain; flex-shrink:0;
}
.foot-brand span{ display:flex; flex-direction:column; gap:5px; }
.foot-brand b{
  font-size:19px; font-weight:800; color:#fff; line-height:1.2; letter-spacing:-.01em;
}
.foot-brand small{
  font-size:10.5px; color:var(--accent);
  font-family:'JetBrains Mono',monospace; direction:ltr; letter-spacing:.22em;
}

/* =========================================================
   animated canvas background (particle web + energy pulses)
   ========================================================= */
#bg-web{
  position:fixed; inset:0; z-index:0;
  width:100%; height:100%;
  pointer-events:none;
  opacity:.5;
}
/* soft depth glows layered over the canvas, under the content */
body::before{
  content:""; position:fixed; inset:0; z-index:0; pointer-events:none;
  background:
    radial-gradient(900px 620px at 84% 8%, rgba(34,199,221,.05), transparent 60%),
    radial-gradient(760px 560px at 10% 92%, rgba(124,140,246,.04), transparent 62%);
}
/* every content layer sits above the background */
.hero, section, footer{ position:relative; z-index:1; }
.site-head{ position:relative; z-index:70; }
/* panels stay readable over the moving web */
.card, .person, .value-block, .table-wrap, .info-list, .contact-card{
  backdrop-filter:blur(6px);
}

/* panels become slightly translucent so the web is visible everywhere */
.card, .person, .value-block, .table-wrap, .info-list, .contact-card{
  background:rgba(11,18,27,.95);
}
.card:hover, .person:hover{ background:rgba(15,24,34,.98); }
thead th{ background:rgba(15,24,34,.98); }