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

:root {
  --ink: #172b46;
  --muted: #718096;
  --primary: #2563eb;
  --primary-dark: #12345a;
  --teal: #0f9b91;
  --purple: #7657d5;
  --line: #e8edf3;
  --surface: #ffffff;
  --soft: #f5f8fc;
  --shadow: 0 12px 34px rgba(23, 43, 70, .07);
  --radius: 18px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: #f7f9fc; color: var(--ink);
  font-family: "BNazanin", Tahoma, sans-serif; line-height: 1.8;
  
   font-family: "B Nazanin", "BNazanin", Tahoma, serif;
    font-size: 19px;
    line-height: 1.8;
    direction: rtl;
    text-align: right;
  
}
a { text-decoration: none; }
.skip-link { position: absolute; top: -60px; right: 12px; z-index: 2000; background: #fff; padding: 8px 14px; border-radius: 8px; }
.skip-link:focus { top: 12px; }
.site-header { background: #fff; border-bottom: 1px solid var(--line); }
.brand-strip { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); }
.brand-mark { display: grid; place-items: center; width: 52px; height: 52px; color: #fff; font-size: 18px; font-weight: 800; letter-spacing: -1px; border-radius: 16px; background: linear-gradient(135deg, #2563eb, #0f9b91); box-shadow: 0 8px 18px rgba(37,99,235,.2); direction: ltr; }
.brand-copy { display: flex; flex-direction: column; line-height: 1.45; }
.brand-copy strong { font-size: 1.28rem; font-weight: 800; }
.brand-copy small { color: var(--muted); font-size: .75rem; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.header-tag { align-items: center; gap: 8px; color: #52647b; background: #f3f7fc; border: 1px solid var(--line); border-radius: 50px; padding: 8px 14px; font-size: .82rem; }
.header-tag i { color: #e3a32b; }
.main-banner { width: 100%; height: clamp(145px, 21vw, 265px); display: block; object-fit: cover; border-radius: 20px; border: 1px solid #e8edf3; }
.banner-link { display: block; }
.btn-menu-mobile { display: inline-flex; align-items: center; gap: 8px; background: var(--primary-dark); color: #fff; border-radius: 12px; padding: 9px 14px; }
.btn-menu-mobile:hover { color: #fff; background: var(--primary); }
.btn-menu-mobile i { font-size: 1.2rem; }
.page-main { padding-top: 28px; padding-bottom: 64px; }
.main-layout { display: grid; direction: ltr; grid-template-columns: minmax(205px, .92fr) minmax(0, 2fr) minmax(230px, 1fr); gap: 20px; align-items: start; }
.main-layout > * { direction: rtl; }
.side-column { display: flex; flex-direction: column; gap: 18px; min-width: 0; }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.section-heading { display: flex; align-items: center; gap: 11px; margin-bottom: 17px; }
.heading-icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 13px; background: #edf4ff; color: var(--primary); font-size: 1.15rem; flex: 0 0 auto; }
.section-heading h2 { font-size: 1rem; font-weight: 800; margin: 0; }
.section-heading p { font-size: .73rem; color: var(--muted); margin: 2px 0 0; }
.nav-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 6px; }
.nav-link-item { display: flex; align-items: center; gap: 10px; min-height: 42px; padding: 8px 10px; border-radius: 11px; color: #41536b; font-size: .84rem; font-weight: 600; transition: .2s ease; }
.nav-link-item .nav-icon { display: grid; place-items: center; width: 29px; height: 29px; flex: 0 0 auto; border-radius: 9px; color: var(--primary); background: #f0f5ff; font-size: .95rem; }
.nav-link-item:hover, .nav-link-item:focus-visible { background: #eff5ff; color: var(--primary); transform: translateX(-3px); outline: none; }
.nav-link-item:hover .nav-icon { color: #fff; background: var(--primary); }
.social-link { display: flex; align-items: center; gap: 10px; padding: 11px 10px; border: 1px solid var(--line); border-radius: 13px; color: var(--ink); margin-top: 9px; transition: .2s; }
.social-link:hover { border-color: #cbd9ee; transform: translateY(-2px); box-shadow: 0 8px 18px rgba(23,43,70,.06); color: var(--ink); }
.social-icon { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 11px; color: #fff; background: #e34e45; font-size: 1.2rem; }
.youtube .social-icon { background: #d92535; }
.social-link span:nth-child(2) { display: flex; flex-direction: column; flex: 1; line-height: 1.5; }
.social-link strong { font-size: .83rem; }
.social-link small { font-size: .69rem; color: var(--muted); }
.social-link > i { color: #9aa8b9; font-size: .85rem; }
.quick-link { display: flex; align-items: center; gap: 10px; padding: 10px 2px; color: #53647a; font-size: .82rem; border-bottom: 1px solid #f0f2f6; }
.quick-link:last-child { border-bottom: 0; }
.quick-link > i:first-child { color: var(--teal); font-size: 1.05rem; }
.quick-link span { flex: 1; }
.quick-link > i:last-child { font-size: .7rem; color: #9aa8b9; }
.quick-link:hover { color: var(--primary); }
.mini-feature { display: flex; gap: 12px; padding: 17px; border-radius: var(--radius); color: #fff; background: linear-gradient(135deg, #12345a, #2365a5); box-shadow: var(--shadow); }
.mini-feature-icon { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 12px; flex: 0 0 auto; background: rgba(255,255,255,.15); font-size: 1.1rem; }
.mini-feature strong { font-size: .82rem; }
.mini-feature p { color: rgba(255,255,255,.76); font-size: .7rem; margin: 4px 0 0; }
.hero-carousel { overflow: hidden; border-radius: 20px; background: #102d50; box-shadow: var(--shadow); }
.slide-image { width: 100%; height: clamp(310px, 35vw, 440px); object-fit: cover; }
.carousel-item { position: relative; }
.carousel-item::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(5,20,43,.04), rgba(5,20,43,.78)); }
.carousel-caption { z-index: 2; right: 9%; left: 12%; bottom: 14%; text-align: right; max-width: 520px; }
.eyebrow { display: inline-block; color: #bde9ff; font-size: .75rem; font-weight: 700; margin-bottom: 8px; }
.carousel-caption h1, .carousel-caption h2 { font-size: clamp(1.35rem, 2.5vw, 2.25rem); font-weight: 800; line-height: 1.5; margin-bottom: 8px; }
.carousel-caption p { color: rgba(255,255,255,.86); font-size: .9rem; margin-bottom: 18px; }
.btn-primary-soft { background: #fff; color: var(--primary-dark); border-radius: 10px; font-size: .82rem; font-weight: 700; padding: 9px 15px; }
.btn-primary-soft:hover { background: #eaf2ff; color: var(--primary); }
.carousel-indicators { z-index: 3; margin-bottom: 15px; }
.carousel-indicators [data-bs-target] { width: 8px; height: 8px; border: 0; border-radius: 20px; opacity: .6; }
.carousel-indicators .active { width: 24px; opacity: 1; }
.carousel-control-prev, .carousel-control-next { z-index: 3; width: 8%; }
.welcome-strip { display: flex; align-items: center; gap: 12px; padding: 15px 17px; margin-top: 16px; border: 1px solid #dfeaf8; border-radius: 14px; background: linear-gradient(90deg, #f1f7ff, #f0fbfa); }
.welcome-icon { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 12px; color: #fff; background: linear-gradient(135deg, var(--primary), var(--teal)); flex: 0 0 auto; }
.welcome-strip p { margin: 0; color: #50627a; font-size: .8rem; }
.welcome-strip strong { color: var(--ink); }
.intro-section { margin-top: 58px; }
.section-title-row { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 22px; }
.eyebrow-dark { color: var(--teal); margin-bottom: 4px; }
.section-title-row h2 { font-size: clamp(1.25rem, 2vw, 1.7rem); font-weight: 800; margin: 0 0 5px; }
.section-title-row p { color: var(--muted); font-size: .85rem; margin: 0; }
.text-link { color: var(--primary); font-size: .82rem; font-weight: 700; white-space: nowrap; }
.intro-card { height: 100%; overflow: hidden; background: #fff; border: 1px solid var(--line); border-radius: 17px; box-shadow: 0 8px 24px rgba(23,43,70,.045); transition: .25s ease; }
.intro-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.intro-card > img { display: block; width: 100%; aspect-ratio: 1 / 1; object-fit: cover; background: #edf3f9; }
.intro-card-body { padding: 17px; }
.card-kicker { display: inline-block; color: var(--teal); background: #eaf8f6; padding: 3px 9px; border-radius: 30px; font-size: .68rem; font-weight: 700; }
.intro-card h3 { font-size: 1rem; font-weight: 800; margin: 10px 0 6px; }
.intro-card p { color: var(--muted); font-size: .78rem; min-height: 50px; margin-bottom: 12px; }
.intro-card a { color: var(--primary); font-size: .76rem; font-weight: 700; }
.site-footer { background: #102945; color: #fff; padding: 48px 0 18px; }
.footer-main { display: grid; grid-template-columns: 1.35fr .8fr .8fr 1fr; gap: 34px; padding-bottom: 35px; }
.brand-light { color: #fff; }
.brand-light .brand-copy small { color: #b7c6d8; }
.footer-brand p, .footer-contact p { color: #b7c6d8; font-size: .8rem; max-width: 330px; margin: 17px 0 0; }
.footer-links, .footer-contact { display: flex; flex-direction: column; align-items: flex-start; gap: 9px; }
.footer-links h2, .footer-contact h2 { font-size: .95rem; font-weight: 800; margin: 4px 0 8px; }
.footer-links a { color: #b7c6d8; font-size: .8rem; }
.footer-links a:hover { color: #fff; }
.footer-contact p { margin: 0; }
.footer-social { display: flex; gap: 8px; margin-top: 5px; }
.footer-social a { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 11px; color: #fff; background: rgba(255,255,255,.1); }
.footer-social a:hover { background: var(--primary); }
.footer-bottom { display: flex; justify-content: space-between; gap: 15px; padding-top: 17px; border-top: 1px solid rgba(255,255,255,.13); color: #9fb1c7; font-size: .72rem; }
.footer-bottom i { color: #f17c88; font-size: .65rem; }
.back-to-top { position: fixed; left: 22px; bottom: 22px; z-index: 100; display: grid; place-items: center; width: 43px; height: 43px; border: 0; border-radius: 13px; color: #fff; background: var(--primary); box-shadow: 0 8px 20px rgba(37,99,235,.25); opacity: 0; visibility: hidden; transform: translateY(8px); transition: .2s; }
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.mobile-menu { width: min(88vw, 360px) !important; border: 0; }
.mobile-menu .offcanvas-header { border-bottom: 1px solid var(--line); padding: 18px; }
.brand-mark-sm { width: 38px; height: 38px; border-radius: 11px; font-size: 14px; }
.mobile-menu .offcanvas-body { padding: 18px; }
.mobile-nav-list .nav-link-item { min-height: 48px; font-size: .9rem; }
.mobile-menu-note { color: var(--muted); background: var(--soft); border-radius: 12px; padding: 12px; font-size: .75rem; margin-top: 20px; }

@media (max-width: 1199.98px) {
  .main-layout { grid-template-columns: minmax(190px, .9fr) minmax(0, 1.8fr) minmax(210px, 1fr); gap: 14px; }
  .panel { padding: 15px; }
  .nav-link-item { font-size: .78rem; gap: 7px; padding-inline: 7px; }
  .slide-image { height: 390px; }
}
@media (max-width: 991.98px) {
  .main-layout { grid-template-columns: minmax(0, 1fr) minmax(220px, .72fr); }
  .center-column { grid-column: 1 / -1; grid-row: 1; }
  .left-column { grid-column: 1; grid-row: 2; }
  .right-column { display: none; }
  .slide-image { height: clamp(300px, 48vw, 420px); }
  .footer-main { grid-template-columns: 1.2fr 1fr 1fr; }
  .footer-contact { grid-column: 1 / -1; }
}
@media (max-width: 575.98px) {
  .site-header .container-xxl { padding-inline: 15px; }
  .brand-mark { width: 45px; height: 45px; border-radius: 13px; }
  .brand-copy strong { font-size: 1.1rem; }
  .brand-copy small { font-size: .66rem; }
  .main-banner { height: 135px; border-radius: 14px; }
  .page-main { padding-top: 18px; padding-bottom: 42px; }
  .main-layout { display: flex; flex-direction: column; }
  .center-column { order: 1; width: 100%; }
  .left-column { order: 2; width: 100%; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
  .left-column .mini-feature { grid-column: 1 / -1; }
  .panel { padding: 14px; }
  .section-heading { margin-bottom: 10px; }
  .slide-image { height: 330px; }
  .carousel-caption { right: 10%; left: 10%; bottom: 16%; }
  .carousel-caption h1, .carousel-caption h2 { font-size: 1.35rem; }
  .carousel-caption p { font-size: .75rem; }
  .carousel-caption .eyebrow { font-size: .68rem; }
  .welcome-strip { align-items: flex-start; padding: 12px; }
  .welcome-strip p { font-size: .73rem; }
  .intro-section { margin-top: 42px; }
  .section-title-row { align-items: flex-start; flex-direction: column; gap: 10px; }
  .intro-card p { min-height: 0; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 25px 18px; }
  .footer-brand, .footer-contact { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}
/* ظاهر جدید منوی اصلی */
.nav-menu a,
.main-menu a {
    display: flex;
    align-items: center;
    justify-content: flex-start;

    padding: 13px 16px;
    margin-bottom: 10px;

    background: #f1f7ff;
    color: #164a83;

    border: 1px solid #d5e6f8;
    border-radius: 12px;

    font-size: 19px;
    font-weight: bold;

    text-decoration: none;

    box-shadow: 0 3px 8px rgba(20, 70, 120, 0.08);

    transition: all 0.25s ease;
}

/* حالت قرار گرفتن نشانگر روی منو */
.nav-menu a:hover,
.main-menu a:hover {
    background: #087fc4;
    color: #ffffff;
    border-color: #087fc4;

    transform: translateX(-4px);

    box-shadow: 0 5px 14px rgba(8, 127, 196, 0.2);
}

/* حالت انتخاب با صفحه‌کلید */
.nav-menu a:focus-visible,
.main-menu a:focus-visible {
    outline: 3px solid #17b8b0;
    outline-offset: 3px;
}