@charset "utf-8";
/* ═══════════════════════════════════════════════════════════════════
   کاویش — سیستم طراحی
   PRD §6 (کانسپت بصری) · §10 (دسترس‌پذیری و کارایی)
   ═══════════════════════════════════════════════════════════════════ */

/* ─── قلم‌ها ────────────────────────────────────────────────────────
   فارسی: Vazirmatn · لاتین و اعداد فنی: Inter (PRD §6)
   unicode-range قلم فارسی را به بازه فارسی/عربی محدود می‌کند تا متن
   لاتین به Inter و در نبود آن به قلم سیستمی برسد.
   ------------------------------------------------------------------ */
@font-face{font-family:"Vazirmatn";src:local("Vazirmatn"),url("../fonts/Vazirmatn-Regular.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap;unicode-range:U+0600-06FF,U+0750-077F,U+08A0-08FF,U+200C-200F,U+2066-2069,U+FB50-FDFF,U+FE70-FEFF}
@font-face{font-family:"Vazirmatn";src:local("Vazirmatn"),url("../fonts/Vazirmatn-Medium.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap;unicode-range:U+0600-06FF,U+0750-077F,U+08A0-08FF,U+200C-200F,U+2066-2069,U+FB50-FDFF,U+FE70-FEFF}
@font-face{font-family:"Vazirmatn";src:local("Vazirmatn"),url("../fonts/Vazirmatn-SemiBold.woff2") format("woff2");font-weight:600;font-style:normal;font-display:swap;unicode-range:U+0600-06FF,U+0750-077F,U+08A0-08FF,U+200C-200F,U+2066-2069,U+FB50-FDFF,U+FE70-FEFF}
@font-face{font-family:"Vazirmatn";src:local("Vazirmatn"),url("../fonts/Vazirmatn-Bold.woff2") format("woff2");font-weight:700;font-style:normal;font-display:swap;unicode-range:U+0600-06FF,U+0750-077F,U+08A0-08FF,U+200C-200F,U+2066-2069,U+FB50-FDFF,U+FE70-FEFF}
@font-face{font-family:"Vazirmatn";src:local("Vazirmatn"),url("../fonts/Vazirmatn-ExtraBold.woff2") format("woff2");font-weight:800;font-style:normal;font-display:swap;unicode-range:U+0600-06FF,U+0750-077F,U+08A0-08FF,U+200C-200F,U+2066-2069,U+FB50-FDFF,U+FE70-FEFF}


/* ─── توکن‌ها ─────────────────────────────────────────────────────── */
:root{
  /* پالت پایه — PRD §6 */
  --dark:        #0B1220;
  --bg-light:    #F7F8FA;
  --ink:         #111827;
  --white:       #FFFFFF;

  /* رنگ اکسنت هر خط کسب‌وکار — PRD §6 */
  --comms:       #635BFF;
  --sec:         #00A7A5;
  --fin:         #B88732;

  /* نسخه تیره‌تر اکسنت‌ها، فقط برای «متن» تا کنتراست WCAG AA تأمین شود.
     اکسنت اصلی برای پُرکردن، حاشیه و گرافیک استفاده می‌شود. */
  --comms-ink:   #443CD4;
  --sec-ink:     #00706E;
  --fin-ink:     #7A5A1E;

  /* خنثی‌ها */
  --body:        #4B5563;
  --muted:       #6B7280;
  --line:        #E5E7EB;
  --line-2:      #D8DDE5;
  --surface:     var(--bg-light);

  /* سطوح تیره */
  --dark-2:      #111A2E;
  --dark-3:      #16203A;
  --dark-line:   #1F2C48;
  --dark-body:   #A6B4CC;
  --dark-muted:  #7C8BA6;

  /* قلم */
  --font-fa:     "Vazirmatn","IRANSansX","IRANSans";
  --font-en:     "Inter",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --font-sans:   var(--font-fa),var(--font-en);
  --font-mono:   ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;

  /* شکل و سایه */
  --r-sm:        8px;
  --r:           12px;
  --r-lg:        18px;
  --r-xl:        26px;
  --shadow:      0 1px 2px rgba(11,18,32,.04), 0 10px 24px -16px rgba(11,18,32,.24);
  --shadow-lg:   0 2px 4px rgba(11,18,32,.04), 0 26px 56px -28px rgba(11,18,32,.30);
  --maxw:        1200px;
  --header-h:    72px;
}

/* ─── پایه ────────────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font-sans);background:var(--white);color:var(--body);
  font-size:16px;line-height:1.95;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{color:var(--ink);margin:0;line-height:1.5;font-weight:800;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
button{font:inherit;color:inherit}

/* محتوای LTR داخل صفحه RTL — PRD §9 */
code,pre,.ltr,.num{direction:ltr;unicode-bidi:isolate;text-align:left}
code,pre,.mono{font-family:var(--font-mono)}
.en,.num{font-family:var(--font-en);font-feature-settings:"tnum" 1}

/* دسترس‌پذیری — PRD §10 */
:focus-visible{outline:3px solid var(--comms);outline-offset:2px;border-radius:4px}
.dark :focus-visible,.hero :focus-visible{outline-color:#8E88FF}
.skip{
  position:absolute;inset-inline-start:-9999px;top:0;z-index:200;
  background:var(--ink);color:#fff;padding:12px 20px;border-radius:0 0 var(--r) 0;font-weight:700;
}
.skip:focus{inset-inline-start:0}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

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

/* ─── چیدمان ──────────────────────────────────────────────────────── */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.wrap-narrow{max-width:880px;margin:0 auto;padding:0 28px}
section{padding:96px 0}
.section-sm{padding:64px 0}
.center{text-align:center}
.light{background:var(--bg-light);border-block:1px solid var(--line)}
.dark{background:var(--dark);color:var(--dark-body)}
.dark h1,.dark h2,.dark h3,.dark h4{color:#fff}

.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  background:rgba(99,91,255,.08);color:var(--comms-ink);
  border:1px solid rgba(99,91,255,.24);
  padding:7px 15px;border-radius:999px;
  font-size:13px;font-weight:700;line-height:1;margin-bottom:20px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:currentColor;flex:0 0 auto}
.dark .eyebrow{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.16);color:#C9D2E4}
.eyebrow.is-sec{background:rgba(0,167,165,.10);border-color:rgba(0,167,165,.28);color:var(--sec-ink)}
.eyebrow.is-fin{background:rgba(184,135,50,.10);border-color:rgba(184,135,50,.30);color:var(--fin-ink)}

.h1{font-size:clamp(32px,4.6vw,54px);line-height:1.32}
.h2{font-size:clamp(26px,3.2vw,40px);line-height:1.38}
.h3{font-size:clamp(20px,2.2vw,26px)}
.lead{font-size:18px;line-height:1.95;color:var(--body);max-width:680px;margin-top:16px}
.dark .lead{color:var(--dark-body)}
.center .lead{margin-inline:auto}
.sec-head{margin-bottom:52px}
.sec-head .lead{margin-top:14px}

/* ─── دکمه‌ها ─────────────────────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:var(--r);
  font-size:15px;font-weight:700;line-height:1.2;
  border:1.5px solid transparent;cursor:pointer;text-align:center;
  transition:background .16s ease,color .16s ease,border-color .16s ease,transform .16s ease,box-shadow .16s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:none}
.btn-lg{padding:16px 30px;font-size:16px}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-primary{background:var(--ink);color:#fff;box-shadow:0 10px 22px -14px rgba(17,24,39,.9)}
.btn-primary:hover{background:#000}
.btn-ghost{background:var(--white);color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--ink)}
.dark .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.28)}
.dark .btn-ghost:hover{background:rgba(255,255,255,.08);border-color:#fff}
.btn-white{background:#fff;color:var(--ink)}
.btn-white:hover{background:#EEF0F4}
.btn-comms{background:var(--comms);color:#fff}
.btn-comms:hover{background:#524AE8}
.btn-sec{background:var(--sec);color:#04231F}
.btn-sec:hover{background:#029391}
.btn-fin{background:var(--fin);color:#231704}
.btn-fin:hover{background:#A5762A}
.btn-row{display:flex;gap:12px;flex-wrap:wrap}
.center .btn-row{justify-content:center}
.btn .ic{flex:0 0 auto}

/* ─── هدر ─────────────────────────────────────────────────────────── */
.site-header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.90);
  backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line);
}
.site-header.is-stuck{box-shadow:0 6px 20px -16px rgba(11,18,32,.5)}
.nav{display:flex;align-items:center;gap:18px;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);font-size:18px;flex:0 0 auto}
.brand img{width:36px;height:36px;object-fit:contain}
.brand small{display:block;font-size:11px;font-weight:600;color:var(--muted);line-height:1.4;letter-spacing:0}
.nav-main{display:flex;align-items:center;gap:2px;margin-inline-start:14px}
.nav-main > li > a,.nav-main > li > button{
  display:inline-flex;align-items:center;gap:6px;padding:9px 13px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;color:var(--body);background:none;border:0;cursor:pointer;
}
.nav-main > li > a:hover,.nav-main > li > button:hover,.nav-main > li > button[aria-expanded="true"]{background:var(--bg-light);color:var(--ink)}
.nav-main a[aria-current="page"]{color:var(--ink);background:var(--bg-light)}
.nav-main .caret{transition:transform .18s ease}
.nav-main button[aria-expanded="true"] .caret{transform:rotate(180deg)}
.nav-end{display:flex;align-items:center;gap:10px;margin-inline-start:auto;flex:0 0 auto}
.nav-toggle{display:none;background:none;border:1px solid var(--line-2);border-radius:var(--r-sm);padding:8px 10px;cursor:pointer}

/* ─── مگا منو — PRD §5 · §9 (کیبورد و لمس) ───────────────────────── */
.mega{
  position:absolute;inset-inline:0;top:100%;z-index:99;
  background:var(--white);border-bottom:1px solid var(--line);
  box-shadow:0 24px 48px -28px rgba(11,18,32,.35);
  display:none;
}
.mega[data-open="true"]{display:block}
.mega-inner{
  max-width:var(--maxw);margin:0 auto;padding:32px 28px 34px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:30px;
}
.mega-col > h3{
  font-size:13px;font-weight:800;letter-spacing:.02em;margin-bottom:14px;
  padding-bottom:11px;border-bottom:2px solid var(--line);display:flex;align-items:center;gap:9px;
}
.mega-col.c-comms > h3{color:var(--comms-ink);border-color:rgba(99,91,255,.35)}
.mega-col.c-sec   > h3{color:var(--sec-ink);border-color:rgba(0,167,165,.40)}
.mega-col.c-fin   > h3{color:var(--fin-ink);border-color:rgba(184,135,50,.42)}
.mega-col li a{
  display:block;padding:9px 12px;border-radius:var(--r-sm);font-size:14.5px;color:var(--body);
  transition:background .14s ease,color .14s ease;
}
.mega-col li a:hover{background:var(--bg-light);color:var(--ink)}
.mega-col li a b{display:block;color:var(--ink);font-weight:700;font-size:15px}
.mega-col li a span{font-size:13px;color:var(--muted);line-height:1.7}
.mega-note{
  margin-top:14px;padding:11px 13px;border-radius:var(--r-sm);
  background:var(--bg-light);font-size:12.5px;color:var(--muted);line-height:1.75;
}

/* ─── هیرو ────────────────────────────────────────────────────────── */
.hero{
  background:var(--dark);color:var(--dark-body);position:relative;overflow:hidden;
  padding:78px 0 88px;
}
.hero::before{ /* شبکه بسیار ظریف — PRD §6 */
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(120% 90% at 50% 0%,#000 35%,transparent 78%);
          mask-image:radial-gradient(120% 90% at 50% 0%,#000 35%,transparent 78%);
}
.hero > .wrap{position:relative;z-index:1}
.hero h1{color:#fff;max-width:900px}
.hero .lead{max-width:720px;font-size:18.5px;color:#B9C6DC}
.hero-actions{margin-top:30px}

/* سه برچسب خط کسب‌وکار — باید در همان Viewport اول دیده شوند (PRD §7) */
.line-chips{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:34px}
.line-chip{
  display:flex;align-items:center;gap:11px;padding:14px 16px;
  background:var(--dark-2);border:1px solid var(--dark-line);border-radius:var(--r);
  color:#E6ECF7;font-weight:700;font-size:15px;
  transition:border-color .16s ease,background .16s ease,transform .16s ease;
}
.line-chip:hover{transform:translateY(-2px);background:var(--dark-3)}
.line-chip .swatch{width:10px;height:10px;border-radius:3px;flex:0 0 auto}
.line-chip small{display:block;font-size:12.5px;font-weight:500;color:var(--dark-muted);line-height:1.6}
.line-chip.c-comms:hover{border-color:var(--comms)}
.line-chip.c-sec:hover{border-color:var(--sec)}
.line-chip.c-fin:hover{border-color:var(--fin)}

/* ─── تصویرسازی «سه سیستم، یک هسته مهندسی» — PRD §6 ─────────────── */
/* padding:0 لازم است — این عنصر <section> است و نباید padding سراسری سکشن‌ها را بگیرد */
.systems{margin-top:44px;padding:0;border:1px solid var(--dark-line);border-radius:var(--r-xl);background:var(--dark-2);overflow:hidden}
.systems-tabs{display:flex;gap:4px;padding:10px;border-bottom:1px solid var(--dark-line);flex-wrap:wrap}
.systems-tabs button{
  flex:1 1 180px;padding:11px 14px;border-radius:var(--r-sm);border:1px solid transparent;
  background:transparent;color:var(--dark-body);font-size:14.5px;font-weight:700;cursor:pointer;
  display:flex;align-items:center;justify-content:center;gap:9px;
  transition:background .16s ease,color .16s ease,border-color .16s ease;
}
.systems-tabs button:hover{background:var(--dark-3);color:#fff}
.systems-tabs button[aria-selected="true"]{background:var(--dark-3);color:#fff;border-color:var(--dark-line)}
.systems-tabs .swatch{width:9px;height:9px;border-radius:2px}
.flow{padding:30px 26px 34px;position:relative}
.flow[hidden]{display:none}
.flow-grid{position:relative;display:grid;grid-template-columns:1.1fr .9fr 1fr;align-items:center;gap:18px;min-height:210px}
.flow-lines{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.flow-lines path{fill:none;stroke:rgba(255,255,255,.20);stroke-width:1.25;vector-effect:non-scaling-stroke}
.flow-lines .lit{stroke:var(--flow-accent,#635BFF);stroke-width:1.75;stroke-dasharray:5 7;animation:dash 1.5s linear infinite}
@keyframes dash{to{stroke-dashoffset:-24}}
@media (prefers-reduced-motion:reduce){.flow-lines .lit{animation:none;stroke-dasharray:none}}
.node{
  position:relative;z-index:1;background:var(--dark-3);border:1px solid var(--dark-line);
  border-radius:var(--r);padding:13px 15px;text-align:center;
}
.node b{display:block;color:#fff;font-size:14.5px;font-weight:700}
.node span{font-size:12.5px;color:var(--dark-muted)}
.node-core{
  border-color:var(--flow-accent,#635BFF);
  box-shadow:0 0 0 1px var(--flow-accent,#635BFF) inset,0 14px 34px -22px var(--flow-accent,#635BFF);
  padding:20px 16px;
}
.node-core b{font-size:16px}
/* کشیده‌شدن ستون خروجی‌ها تا مرکز هر گره دقیقاً روی مختصات خطوط SVG بنشیند */
.flow-outs{display:grid;gap:11px;align-self:stretch;grid-auto-rows:1fr}
.flow-outs .node{display:flex;flex-direction:column;justify-content:center}
.flow-cap{margin-top:22px;font-size:13.5px;color:var(--dark-muted);text-align:center}

/* ─── کارت‌ها ─────────────────────────────────────────────────────── */
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}

.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.card h3{font-size:19px;margin-bottom:10px}
.card p{font-size:15px}
.ico{
  width:44px;height:44px;border-radius:var(--r);display:grid;place-items:center;margin-bottom:18px;
  background:var(--bg-light);border:1px solid var(--line);color:var(--ink);
}
.c-comms .ico{background:rgba(99,91,255,.09);border-color:rgba(99,91,255,.26);color:var(--comms-ink)}
.c-sec   .ico{background:rgba(0,167,165,.10);border-color:rgba(0,167,165,.28);color:var(--sec-ink)}
.c-fin   .ico{background:rgba(184,135,50,.10);border-color:rgba(184,135,50,.30);color:var(--fin-ink)}

/* کارت بزرگ خط کسب‌وکار — سه کارت هم‌ارزش، بدون Carousel (PRD §7) */
.line-card{
  display:flex;flex-direction:column;background:var(--white);
  border:1px solid var(--line);border-radius:var(--r-xl);padding:32px;position:relative;overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.line-card::before{content:"";position:absolute;inset-block-start:0;inset-inline:0;height:3px;background:var(--accent,var(--ink))}
.line-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--line-2)}
.line-card.c-comms{--accent:var(--comms)}
.line-card.c-sec{--accent:var(--sec)}
.line-card.c-fin{--accent:var(--fin)}
.line-card h3{font-size:22px;margin-bottom:6px}
.line-card .kicker{font-size:13px;font-weight:700;color:var(--accent-ink,var(--muted));margin-bottom:14px}
.line-card.c-comms .kicker{--accent-ink:var(--comms-ink)}
.line-card.c-sec .kicker{--accent-ink:var(--sec-ink)}
.line-card.c-fin .kicker{--accent-ink:var(--fin-ink)}
.line-card > p{font-size:15.5px}
.line-card .who{
  margin-top:18px;padding:12px 14px;background:var(--bg-light);border-radius:var(--r);
  font-size:13.5px;color:var(--muted);
}
.line-card .who b{color:var(--ink);font-weight:700}
.line-card ul{margin-top:18px;display:grid;gap:8px}
.line-card ul li{display:flex;gap:9px;align-items:flex-start;font-size:14.5px}
.line-card .btn-row{margin-top:auto;padding-top:24px}
.chk{flex:0 0 auto;color:var(--accent,var(--ink));font-weight:800;line-height:1.9}

/* ─── فهرست ویژگی و پنل ──────────────────────────────────────────── */
.feat-list{display:grid;gap:2px}
.feat-list li{display:flex;gap:12px;align-items:flex-start;padding:10px 0;font-size:15.5px}
.feat-list b{color:var(--ink);font-weight:700}
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split-wide{grid-template-columns:1fr 1.15fr}
.panel{background:var(--bg-light);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px}
.panel h3{font-size:18px;margin-bottom:14px}
.panel li{display:flex;gap:9px;align-items:flex-start;padding:6px 0;font-size:15px}

/* ─── مراحل ───────────────────────────────────────────────────────── */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--white);overflow:hidden}
.step{padding:26px 22px;border-inline-start:1px solid var(--line)}
.step:first-child{border-inline-start:0}
.step .n{
  width:30px;height:30px;border-radius:9px;background:var(--ink);color:#fff;
  display:grid;place-items:center;font-size:14px;font-weight:800;margin-bottom:13px;
}
.step b{display:block;color:var(--ink);font-size:15.5px;margin-bottom:5px}
.step p{font-size:14px;color:var(--muted);line-height:1.85}

/* ─── جدول/کد ─────────────────────────────────────────────────────── */
.codebox{background:var(--dark);border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--dark-line)}
.code-bar{display:flex;align-items:center;gap:7px;padding:13px 17px;background:var(--dark-2);border-bottom:1px solid var(--dark-line)}
.code-bar i{width:10px;height:10px;border-radius:50%;background:#2A3A5C;display:block}
.code-bar span{margin-inline-start:auto;font-size:12px;color:var(--dark-muted);font-family:var(--font-mono)}
pre{margin:0;padding:22px;font-size:13.5px;line-height:2;color:#D7E1F2;overflow-x:auto}
.k{color:#8E88FF}.s{color:#5FD3AE}.c{color:#5C6B87}.n{color:#E0A96D}

/* ─── دمو کپچا — PRD §6 (بدون ادعای عددی واقعی) ──────────────────── */
.demo{background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.demo-bar{display:flex;align-items:center;gap:10px;padding:14px 18px;background:var(--bg-light);border-bottom:1px solid var(--line);font-size:13.5px;font-weight:700;color:var(--ink)}
.demo-body{padding:26px}
.toggle{display:inline-flex;background:var(--bg-light);border:1px solid var(--line);border-radius:999px;padding:4px;gap:4px}
.toggle button{
  border:0;background:transparent;padding:9px 18px;border-radius:999px;cursor:pointer;
  font-size:14px;font-weight:700;color:var(--muted);transition:background .16s ease,color .16s ease;
}
.toggle button[aria-pressed="true"]{background:var(--white);color:var(--ink);box-shadow:var(--shadow)}
.meter{height:9px;border-radius:999px;background:var(--line);overflow:hidden;margin:18px 0 10px}
.meter i{display:block;height:100%;border-radius:999px;background:var(--sec);transition:width .35s ease,background .35s ease}
.demo-verdict{
  display:inline-flex;align-items:center;gap:9px;padding:10px 16px;border-radius:var(--r);
  font-weight:700;font-size:14.5px;border:1px solid;
}
.v-pass{background:rgba(0,167,165,.10);border-color:rgba(0,167,165,.32);color:var(--sec-ink)}
.v-warn{background:rgba(184,135,50,.10);border-color:rgba(184,135,50,.34);color:var(--fin-ink)}
.v-block{background:rgba(220,38,38,.08);border-color:rgba(220,38,38,.28);color:#B91C1C}
.demo-note{margin-top:18px;font-size:12.5px;color:var(--muted);line-height:1.8}

/* ─── انتخابگر CTA نهایی — PRD §7 §10 ────────────────────────────── */
.picker{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:34px}
.picker button{
  text-align:start;padding:22px;border-radius:var(--r-lg);cursor:pointer;
  background:var(--dark-2);border:1px solid var(--dark-line);color:#fff;
  transition:border-color .16s ease,background .16s ease,transform .16s ease;
}
.picker button:hover{transform:translateY(-3px);background:var(--dark-3)}
.picker button[aria-pressed="true"]{border-color:var(--pick,#fff);background:var(--dark-3)}
.picker button b{display:block;font-size:16.5px;margin-bottom:6px}
.picker button span{font-size:13.5px;color:var(--dark-muted);line-height:1.8}
.picker .c-comms{--pick:var(--comms)}
.picker .c-sec{--pick:var(--sec)}
.picker .c-fin{--pick:var(--fin)}
.picker-out{
  margin-top:22px;padding:24px;border-radius:var(--r-lg);
  background:var(--dark-2);border:1px solid var(--dark-line);
}
.picker-out p{color:var(--dark-body);font-size:15px;margin-bottom:18px}

/* ─── فرم — PRD §9 ────────────────────────────────────────────────── */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;font-weight:700;color:var(--ink)}
.field .req{color:#B91C1C}
.field input,.field select,.field textarea{
  font:inherit;font-size:15px;color:var(--ink);background:var(--white);
  border:1px solid var(--line-2);border-radius:var(--r);padding:12px 14px;width:100%;
  transition:border-color .16s ease,box-shadow .16s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--comms);box-shadow:0 0 0 3px rgba(99,91,255,.14);outline:none;
}
.field textarea{min-height:130px;resize:vertical;line-height:1.9}
.field .hint{font-size:12.5px;color:var(--muted)}
.field .err{font-size:12.5px;color:#B91C1C;font-weight:700;display:none}
.field.is-invalid input,.field.is-invalid select,.field.is-invalid textarea{border-color:#B91C1C}
.field.is-invalid .err{display:block}
.hp{position:absolute;inset-inline-start:-9999px;width:1px;height:1px;overflow:hidden}
.form-note{margin-top:16px;font-size:13px;color:var(--muted);line-height:1.85}

/* ─── نشانگر محتوای ناقص — PRD §7 §14 ────────────────────────────── */
.needs-content{
  display:inline-flex;align-items:center;gap:8px;
  background:repeating-linear-gradient(-45deg,#FFF7E6,#FFF7E6 9px,#FEF0D3 9px,#FEF0D3 18px);
  border:1px dashed #C9932F;color:#7A5A1E;
  padding:6px 12px;border-radius:var(--r-sm);font-size:12.5px;font-weight:700;line-height:1.5;
}
.placeholder-box{
  border:1px dashed var(--line-2);border-radius:var(--r-lg);padding:30px;text-align:center;
  background:var(--bg-light);color:var(--muted);font-size:14px;
}
.placeholder-box .needs-content{margin-bottom:12px}
.token{
  font-family:var(--font-mono);font-size:.92em;background:rgba(184,135,50,.12);
  border:1px dashed rgba(184,135,50,.5);border-radius:6px;padding:1px 7px;color:var(--fin-ink);
  direction:rtl;unicode-bidi:isolate;
}

/* ─── مسیر راهنما — PRD §15 ──────────────────────────────────────── */
.crumbs{display:flex;align-items:center;gap:9px;flex-wrap:wrap;font-size:13.5px;color:var(--muted);padding:18px 0 0}
.crumbs a:hover{color:var(--ink);text-decoration:underline}
.crumbs .sep{opacity:.5}
.dark .crumbs{color:var(--dark-muted)}
.dark .crumbs a:hover{color:#fff}

/* ─── فوتر ────────────────────────────────────────────────────────── */
.site-footer{background:var(--dark);color:var(--dark-body);padding:64px 0 30px;border-top:1px solid var(--dark-line)}
.site-footer h4{color:#fff;font-size:14px;font-weight:800;margin-bottom:15px}
.foot-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:32px}
.foot-grid li{padding:5px 0;font-size:14px}
.foot-grid li a:hover{color:#fff;text-decoration:underline}
.foot-brand p{font-size:14px;color:var(--dark-muted);max-width:300px;margin-top:14px;line-height:1.9}
.foot-brand .brand{color:#fff}
.foot-brand .brand small{color:var(--dark-muted)}
.brand-rel{
  margin-top:18px;padding:11px 14px;border:1px solid var(--dark-line);border-radius:var(--r);
  background:var(--dark-2);font-size:13px;color:#C9D2E4;line-height:1.8;
}
.foot-bot{
  margin-top:46px;padding-top:22px;border-top:1px solid var(--dark-line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--dark-muted);
}

/* ═══ واکنش‌گرایی — نقاط 1440 / 1024 / 768 / 390 (PRD §15) ═══ */
@media (max-width:1100px){
  .foot-grid{grid-template-columns:1fr 1fr 1fr}
  .foot-brand{grid-column:1/-1}
}
@media (max-width:1024px){
  section{padding:74px 0}
  .g4{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:36px}
  .steps{grid-template-columns:1fr 1fr}
  .step:nth-child(3){border-inline-start:0}
  .step:nth-child(n+3){border-top:1px solid var(--line)}
  .mega-inner{grid-template-columns:1fr;gap:20px;padding:22px 24px}
  .flow-grid{grid-template-columns:1fr}
  .flow-lines{display:none}
  .node-core{order:-1}
}
@media (max-width:900px){
  .g3{grid-template-columns:1fr}
  .line-chips{grid-template-columns:1fr}
  .picker{grid-template-columns:1fr}
  .systems-tabs button{flex:1 1 100%}
}
@media (max-width:768px){
  /* ناوبری موبایل — منو بدون وابستگی به Hover */
  .nav-toggle{display:inline-flex;order:3;margin-inline-start:auto}
  .nav-end .btn-ghost{display:none}
  .nav-main{
    display:none;position:absolute;inset-inline:0;top:var(--header-h);
    flex-direction:column;align-items:stretch;gap:0;margin:0;padding:14px;
    background:var(--white);border-bottom:1px solid var(--line);
    box-shadow:0 22px 44px -30px rgba(11,18,32,.5);max-height:calc(100vh - var(--header-h));overflow-y:auto;
  }
  .nav-main[data-open="true"]{display:flex}
  .nav-main > li > a,.nav-main > li > button{width:100%;justify-content:space-between;padding:13px 12px;font-size:16px}
  .mega{position:static;box-shadow:none;border:0}
  .mega-inner{padding:4px 0 10px}
  .mega-col > h3{margin-bottom:8px}
  .g2{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:480px){
  .wrap,.wrap-narrow{padding:0 18px}
  section{padding:58px 0}
  .steps{grid-template-columns:1fr}
  .step{border-inline-start:0;border-top:1px solid var(--line)}
  .step:first-child{border-top:0}
  .foot-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .btn-row{flex-direction:column}
  .toggle{width:100%}
  .toggle button{flex:1}
}

@media print{
  .site-header,.site-footer,.no-print{display:none !important}
  body{color:#000;background:#fff}
  .hero,.dark{background:#fff !important;color:#000 !important}
  .dark h1,.dark h2,.dark h3{color:#000 !important}
}