/* =========================================================
   ایران ILO — صفحه اصلی (طرح ۲۰۲۷)
   زبان بصری: رسمی، مینیمال، یک رنگ تاکیدی، فضای سفید زیاد
   ========================================================= */

/* ---------- Tokens ---------- */
:root {
  --font: "Vazir FD", system-ui, Tahoma, sans-serif;

  --ink: #0b1220;          /* تیره اصلی: تیترها، فوتر */
  --text: #2b3445;
  --muted: #6b7280;
  --line: #e6e8ee;
  --bg: #ffffff;
  --soft: #f6f7f9;

  --accent: #0f6e63;       /* تنها رنگ تاکیدی */
  --accent-ink: #0a4f47;
  --accent-soft: #e6f2f0;

  --r: 10px;
  --r-lg: 16px;
  --wrap: 1200px;
  --header-h: 76px;
  --t: .25s ease;
}

/* ---------- Fonts ---------- */
@font-face { font-family: "Vazir FD"; src: url("../fonts/Vazir-Light-FD.woff2") format("woff2");   font-weight: 300; font-display: swap; }
@font-face { font-family: "Vazir FD"; src: url("../fonts/Vazir-Regular-FD.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Vazir FD"; src: url("../fonts/Vazir-Medium-FD.woff2") format("woff2");  font-weight: 500; font-display: swap; }
@font-face { font-family: "Vazir FD"; src: url("../fonts/Vazir-Bold-FD.woff2") format("woff2");    font-weight: 700; font-display: swap; }
@font-face { font-family: "Vazir FD"; src: url("../fonts/Vazir-Black-FD.woff2") format("woff2");   font-weight: 900; font-display: swap; }

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scrollbar-gutter: stable; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  overflow-x: clip;
}
img, svg { display: block; max-width: 100%; }
img { height: auto; } /* ویژگی height وردپرس روی img نباید aspect-ratio را خنثی کند */
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button, input { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
h1, h2, h3 { color: var(--ink); line-height: 1.5; font-weight: 700; }
address { font-style: normal; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: 1.25rem; }

/* icons */
.ic { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: 0 0 auto; }
.ic--lg { width: 32px; height: 32px; stroke-width: 1.5; }

/* ---------- Typography helpers ---------- */
.eyebrow {
  display: inline-block;
  font-size: .85rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 1rem;
  padding-right: .9rem;
  position: relative;
}
.eyebrow::before { content: ""; position: absolute; right: 0; top: 50%; width: 6px; height: 6px; border-radius: 50%; background: currentColor; transform: translateY(-50%); }

.section__title { font-size: 1.9rem; font-weight: 800; letter-spacing: -.01em; }
.section__desc { color: var(--muted); margin-top: .5rem; max-width: 56ch; }
.section__head { margin-bottom: 2.5rem; }
.section__head--row { display: flex; align-items: flex-end; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; }
.section__cta { margin-top: 2rem; }

.link { display: inline-flex; align-items: center; gap: .4rem; color: var(--accent); font-weight: 500; transition: gap var(--t); }
.link:hover { gap: .7rem; }
.link .ic { width: 18px; height: 18px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .7rem 1.5rem;
  border-radius: var(--r);
  font-weight: 500;
  border: 1px solid transparent;
  transition: background var(--t), color var(--t), border-color var(--t), transform var(--t);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--solid { background: var(--accent); color: #fff; }
.btn--solid:hover { background: var(--accent-ink); }
.btn--outline { border-color: var(--line); color: var(--ink); background: #fff; }
.btn--outline:hover { border-color: var(--ink); }
.btn--light { background: #fff; color: var(--ink); }
.btn--light:hover { background: var(--accent-soft); }
.btn--ghost { border-color: rgba(255,255,255,.3); color: #fff; }
.btn--ghost:hover { background: rgba(255,255,255,.08); }
.btn--sm { padding: .5rem 1.1rem; font-size: .9rem; }
.btn--block { width: 100%; }

/* ---------- Layout: sections ---------- */
.section { padding-block: 5.5rem; }
.section--soft { background: var(--soft); }
.section--tight { padding-block: 3rem; }

/* =========================================================
   Header
   ========================================================= */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t);
}
.header.is-stuck { border-color: var(--line); }
.header__row { height: var(--header-h); display: flex; align-items: center; justify-content: space-between; gap: 1rem; }

.header__start { display: flex; align-items: center; gap: .75rem; }

.brand { display: inline-flex; align-items: center; gap: .7rem; }
.brand__logo { width: auto; height: 44px; }
/* دامنه زیر لوگو */
.brand__media { display: flex; flex-direction: column; align-items: center; gap: .2rem; }
.brand__title { font-size: 1.25rem; font-weight: 900; color: var(--accent); line-height: 1.2; white-space: nowrap; }
.brand__url { font-size: .62rem; font-weight: 500; color: var(--muted); line-height: 1; letter-spacing: .02em; }
.brand__mark {
  display: grid; place-items: center;
  width: 42px; height: 42px;
  border-radius: 10px;
  background: var(--ink);
  color: #fff;
  font-weight: 800; font-size: .8rem; letter-spacing: .04em;
  direction: ltr;
}
.brand__text { font-size: .95rem; color: var(--muted); line-height: 1.3; }
.brand__text strong { display: block; color: var(--ink); font-size: 1.05rem; }
.brand--light .brand__mark { background: #fff; color: var(--ink); }
.brand--light .brand__text { color: #9aa3b2; }
.brand--light .brand__text strong { color: #fff; }

.nav__head, .nav__foot, .nav-backdrop { display: none; }
.nav__list { display: flex; gap: .125rem; }
.nav__item { position: relative; display: flex; align-items: center; }
.nav__link { padding: .5rem; border-radius: 8px; font-size: .875rem; white-space: nowrap; color: var(--text); font-weight: 500; transition: background var(--t), color var(--t); }
.has-sub > .nav__link { padding-left: 1.5rem; }
.nav__item:hover > .nav__link { background: var(--soft); color: var(--ink); }
.nav__caret {
  position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 24px; height: 24px; display: grid; place-items: center;
  border-radius: 6px; color: var(--muted);
}
.nav__caret .ic { width: 16px; height: 16px; transition: transform var(--t); }
.nav__item.is-open > .nav__caret .ic { transform: rotate(180deg); }

/* dropdown (دسکتاپ) */
.sub {
  position: absolute; top: 100%; right: 0; z-index: 10;
  min-width: 230px;
  padding: .5rem;
  margin-top: .5rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  box-shadow: 0 18px 40px -18px rgba(11,18,32,.25);
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity var(--t), transform var(--t), visibility var(--t);
}
.sub::before { content: ""; position: absolute; inset: -.6rem 0 auto; height: .6rem; } /* پل hover بین لینک و منو */
.sub a {
  display: flex; align-items: center; gap: .6rem;
  padding: .55rem .75rem; border-radius: 8px;
  font-size: .92rem; color: var(--text);
  transition: background var(--t), color var(--t);
}
.sub a:hover { background: var(--soft); color: var(--accent); }
.sub .ic { width: 18px; height: 18px; color: var(--accent); }
.nav__item:hover > .sub,
.nav__item:focus-within > .sub,
.nav__item.is-open > .sub { opacity: 1; visibility: visible; transform: none; }

.header__actions { display: flex; align-items: center; gap: .75rem; }
/* منو پرآیتم است؛ در هدر دسکتاپ فقط آیکون تلفن جا می‌شود */
.header__actions .header__phone span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.header__phone { display: inline-flex; align-items: center; gap: .5rem; color: var(--ink); font-weight: 500; font-size: .95rem; }
.header__phone .ic { color: var(--accent); }

.nav-toggle { display: none; width: 42px; height: 42px; place-items: center; border-radius: 8px; border: 1px solid var(--line); color: var(--ink); }
.nav-toggle .ic { width: 22px; height: 22px; }
body.nav-locked { overflow: hidden; }

/* =========================================================
   Hero
   ========================================================= */
.hero { padding-block: 5rem 4.5rem; border-bottom: 1px solid var(--line); overflow-x: clip; } /* حاله سبز از لبه صفحه بیرون نزند */
.hero__grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 4rem; align-items: center; }
.hero__title { font-size: 2.9rem; font-weight: 900; line-height: 1.55; letter-spacing: -.01em; }
.hero__lead { margin-top: 1.5rem; color: var(--muted); font-size: 1.05rem; max-width: 60ch; }

/* ---------- Hero: کاشی‌های دوره (۴ ردیف × ۲ ستون) ---------- */
/* حاله سبز کم‌رنگ و نامنظم پشت ستون کاشی‌ها */
.hero__aside { position: relative; isolation: isolate; }
.hero__aside::before {
  content: ""; position: absolute; z-index: -1; pointer-events: none;
  inset: -22% -18% -26% -12%;
  background:
    radial-gradient(46% 50% at 30% 36%, rgba(15,110,99,.30), transparent 72%),
    radial-gradient(44% 48% at 72% 70%, rgba(110,190,176,.42), transparent 74%),
    radial-gradient(28% 32% at 80% 20%, rgba(15,110,99,.20), transparent 72%);
  border-radius: 63% 37% 54% 46% / 42% 58% 39% 61%;
  filter: blur(30px);
  transform: rotate(-9deg);
}

.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: .85rem; }
.tiles li { display: grid; } /* کاشی‌های هر ردیف هم‌ارتفاع */
.tile {
  --ease: cubic-bezier(.22, .61, .36, 1);
  position: relative; isolation: isolate; overflow: hidden;
  display: flex; align-items: center;
  min-height: 72px;
  padding: 1rem 1.15rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  font-weight: 700; font-size: .95rem; line-height: 1.6;
  color: var(--ink);
  transition: color .7s var(--ease), border-color .7s var(--ease), transform .7s var(--ease), box-shadow .7s var(--ease);
}
/* لایه سبز: از مرکز با محو شدن و بزرگ شدن ظاهر می‌شود */
.tile::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(135deg, var(--accent), var(--accent-ink));
  opacity: 0; transform: scale(.92);
  border-radius: inherit;
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.tile.is-active {
  color: #fff;
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 14px 28px -14px rgba(15,110,99,.55);
}
.tile.is-active::before { opacity: 1; transform: none; }
.tile:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* =========================================================
   Departments
   ========================================================= */
.dept-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.dept {
  position: relative;
  padding: 2rem 1.5rem 1.75rem;
  display: flex; flex-direction: column; gap: .75rem;
  background: #fff;
  transition: background var(--t);
}
.dept + .dept { border-right: 1px solid var(--line); }
.dept:hover { background: var(--soft); }
.dept__num { position: absolute; top: 1.25rem; left: 1.5rem; font-size: .8rem; color: #b4bac6; font-weight: 500; }
.dept .ic--lg { color: var(--accent); margin-bottom: .5rem; }
.dept h3 { font-size: 1.15rem; }
.dept p { color: var(--muted); font-size: .92rem; flex: 1; }
.dept__more { display: inline-flex; align-items: center; gap: .4rem; font-size: .9rem; font-weight: 500; color: var(--ink); margin-top: .5rem; }
.dept__more .ic { width: 16px; height: 16px; transition: transform var(--t); }
.dept:hover .dept__more .ic { transform: translateX(-4px); }

/* =========================================================
   Why
   ========================================================= */
.why { display: grid; grid-template-columns: 1fr 1.6fr; gap: 4rem; align-items: start; }
.why__intro p { margin-block: 1rem 1.5rem; color: var(--muted); }
.why__list { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem 2rem; }
.why__list li { display: flex; gap: 1rem; padding: 1.25rem; background: #fff; border: 1px solid var(--line); border-radius: var(--r); }
.why__list .ic { width: 24px; height: 24px; color: var(--accent); margin-top: .2rem; }
.why__list h3 { font-size: 1rem; }
.why__list p { font-size: .88rem; color: var(--muted); }

/* =========================================================
   Offer (آشنایی با IRANILO)
   ========================================================= */
.offer { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.offer__media img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--r-lg); }
.offer h2 { font-size: 1.8rem; margin-bottom: 1rem; }
.offer p { color: var(--muted); }
.checks { margin-block: 1.5rem 2rem; display: grid; gap: .6rem; }
.checks li { display: flex; align-items: center; gap: .6rem; font-weight: 500; color: var(--ink); }
.checks .ic { width: 18px; height: 18px; color: var(--accent); }

/* =========================================================
   Courses
   ========================================================= */
.course-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.course {
  display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  overflow: hidden;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}
.course:hover { transform: translateY(-4px); border-color: #d6dae3; box-shadow: 0 20px 40px -20px rgba(11,18,32,.22); }

.course__media { position: relative; overflow: hidden; }
.course__media img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; transition: transform .5s ease; }
.course:hover .course__media img { transform: scale(1.04); }
/* لوگو و نام تصویر جایگزین زیر عنوان کارت نرود */
.course__media img.is-placeholder { padding-bottom: 24%; object-fit: contain; background: var(--soft); }
.course__media figcaption {
  position: absolute; inset: auto 0 0 0;
  padding: 3rem 1.25rem 1.1rem;
  background: linear-gradient(to top, rgba(11,18,32,.82) 0%, rgba(11,18,32,.45) 55%, rgba(11,18,32,0) 100%);
}
.course__media h3 {
  color: #fff; font-size: 1.15rem;
  text-shadow: 0 1px 2px rgba(0,0,0,.25);
  transition: transform var(--t);
}
.course:hover .course__media h3 { transform: translateY(-2px); }

.course__specs {
  display: grid; grid-template-columns: repeat(3, 1fr);
  background: #fff;
}
.course__specs > div { padding: .85rem .5rem; text-align: center; }
.course__specs > div + div { border-right: 1px solid var(--line); }
.course__specs dt { font-size: .72rem; color: var(--muted); margin-bottom: .15rem; }
.course__specs dd { font-size: .95rem; font-weight: 700; color: var(--ink); line-height: 1.5; }
.course__specs dd.is-price { color: var(--accent); }
.course__specs dd small { font-size: .7rem; font-weight: 400; color: var(--muted); }

/* =========================================================
   Blog
   ========================================================= */
/* نام‌های .blog و .post را وردپرس روی body و article می‌گذارد؛ اینجا نباید استفاده شوند */
.blog-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 3rem; }
.post-card a { display: grid; grid-template-columns: 120px 1fr; gap: 1rem; align-items: center; padding-block: 1.1rem; border-top: 1px solid var(--line); }
.post-card:nth-child(-n+2) a { padding-top: 0; border-top: 0; }
.post-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--r); }
.post-card h3 { font-size: 1rem; margin-top: .2rem; transition: color var(--t); }
.post-card a:hover h3 { color: var(--accent); }
.post__cat { font-size: .78rem; color: var(--accent); font-weight: 500; }
.post__meta { display: flex; gap: 1rem; font-size: .82rem; color: var(--muted); margin-top: .5rem; }
.post__meta span::after { content: "·"; margin-right: 1rem; }

/* =========================================================
   Footer
   ========================================================= */
.footer {
  position: relative;
  background: var(--ink); color: #aab2c0;
  padding-top: 3rem;
  margin-top: 3rem;
}
.footer::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.18), transparent);
}

/* CTA strip */
.footer__cta {
  display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap;
  padding: 2rem 2.25rem;
  border-radius: var(--r-lg);
  background: linear-gradient(135deg, rgba(15,110,99,.35), rgba(255,255,255,.04));
  border: 1px solid rgba(255,255,255,.08);
}
.footer__cta h2 { color: #fff; font-size: 1.35rem; margin-bottom: .25rem; }
.footer__cta p { font-size: .95rem; }
.footer__cta-actions { display: flex; gap: .75rem; flex-wrap: wrap; }
.footer__cta .btn--ghost { border-color: rgba(255,255,255,.25); }

/* Main grid */
.footer__grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 3rem; padding-block: 3.5rem 3rem; }
.brand--footer .brand__title { color: #fff; }
.brand--footer .brand__url { color: #7d8797; }
.brand--footer .brand__logo { filter: brightness(0) invert(1); } /* سبز تیره logo.svg روی زمینه تیره فوتر دیده نمی‌شود */
.footer__about p { margin-block: 1.25rem; font-size: .92rem; line-height: 1.9; max-width: 44ch; }
.footer__social { display: flex; gap: .5rem; }
.footer__social a {
  width: 38px; height: 38px; display: grid; place-items: center;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,.12);
  color: #cfd5de;
  transition: background var(--t), border-color var(--t), color var(--t), transform var(--t);
}
.footer__social a:hover { background: var(--accent); border-color: var(--accent); color: #fff; transform: translateY(-2px); }
.footer__social .ic { width: 18px; height: 18px; }

.footer__title { color: #fff; font-size: .95rem; font-weight: 700; margin-bottom: 1.1rem; }
.footer__col ul { display: grid; gap: .65rem; font-size: .92rem; }
.footer__col ul a { position: relative; transition: color var(--t), padding-right var(--t); }
.footer__col ul a:hover { color: #fff; padding-right: .35rem; }
.footer__contact li { display: flex; align-items: center; gap: .6rem; }
.footer__contact .ic { width: 17px; height: 17px; color: #7ecbc0; }
.footer__contact a:hover { color: #fff; }
.footer__phones { display: flex; flex-direction: column; gap: .15rem; }

/* Bottom bar */
.footer__bottom {
  display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; flex-wrap: wrap;
  padding-block: 1.4rem;
  border-top: 1px solid rgba(255,255,255,.08);
  font-size: .82rem;
}
.badges { display: flex; gap: .6rem; align-items: center; }
.badges img {
  width: 42px; height: 42px; object-fit: contain;
  background: #fff; border-radius: 9px; padding: 4px;
  opacity: .85; transition: opacity var(--t), transform var(--t);
}
.badges img:hover { opacity: 1; transform: translateY(-2px); }
.footer__legal { display: flex; align-items: center; gap: 1.25rem; flex-wrap: wrap; }
.footer__legal p { color: #7d8797; }
.footer__legal a { color: #aab2c0; transition: color var(--t); }
.footer__legal a:hover { color: #fff; }

/* =========================================================
   Floating
   ========================================================= */
.contact { position: fixed; right: 1.25rem; bottom: 1.25rem; z-index: 40; display: flex; flex-direction: column; align-items: flex-start; gap: .75rem; }
.fab {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .7rem 1.1rem .7rem 1.3rem;
  background: var(--ink); color: #fff;
  border-radius: 999px;
  box-shadow: 0 10px 24px -8px rgba(11,18,32,.5);
  font-weight: 500; font-size: .95rem;
  transition: transform var(--t), background var(--t);
}
.fab:hover { transform: translateY(-2px); background: var(--accent); }
.fab .ic--close { display: none; }
.fab.is-open .ic--open { display: none; }
.fab.is-open .ic--close { display: block; }

.contact__panel {
  width: 280px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: 0 24px 48px -16px rgba(11,18,32,.3);
  padding: .5rem;
  transform-origin: bottom right;
  opacity: 0; visibility: hidden;
  transform: translateY(12px) scale(.97);
  transition: opacity var(--t), transform var(--t), visibility var(--t);
}
.contact__panel.is-open { opacity: 1; visibility: visible; transform: none; }
.contact__head { display: flex; justify-content: space-between; align-items: baseline; padding: .6rem .75rem .5rem; margin-bottom: .25rem; border-bottom: 1px solid var(--line); }
.contact__head strong { color: var(--ink); font-size: .95rem; }
.contact__head span { font-size: .75rem; color: var(--muted); }
.contact__item { display: flex; align-items: center; gap: .75rem; padding: .6rem .75rem; border-radius: var(--r); transition: background var(--t); }
.contact__item:hover { background: var(--soft); }
.contact__icon { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 10px; color: #fff; flex: 0 0 auto; }
.contact__icon--phone { background: var(--ink); }
.contact__icon--whatsapp { background: #25a05a; }
.contact__icon--bale { background: #2d8cf0; }
.contact__text { display: flex; flex-direction: column; line-height: 1.4; }
.contact__text strong { color: var(--ink); font-size: .95rem; }
.contact__text small { color: var(--muted); font-size: .78rem; }
.to-top {
  position: fixed; left: 1.25rem; bottom: 1.25rem; z-index: 40;
  width: 44px; height: 44px; display: grid; place-items: center;
  background: #fff; color: var(--ink);
  border: 1px solid var(--line); border-radius: 50%;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: all var(--t);
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .55s ease, transform .55s ease; }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .tile, .tile::before { transition-property: color, border-color, opacity; transform: none !important; }
  html { scroll-behavior: auto; }
}

/* =========================================================
   Responsive
   ========================================================= */
/* منوی کشویی: عرض کمتر از این، منوی یک‌خطی جا نمی‌شود (با isMobile در main.js هماهنگ بماند) */
@media (max-width: 1240px) {
  /* backdrop-filter برای فرزندان fixed «containing block» می‌سازد و offcanvas را داخل هدر حبس می‌کند */
  .header { background: #fff; backdrop-filter: none; -webkit-backdrop-filter: none; }
  .header__row { gap: 1rem; }
  .nav-toggle { display: grid; }
  .header__actions .header__phone { display: none; }

  /* offcanvas از سمت راست */
  .nav-backdrop {
    display: block;
    position: fixed; inset: 0; z-index: 1;
    background: rgba(11,18,32,.45);
    opacity: 0; visibility: hidden;
    transition: opacity .3s ease, visibility .3s ease;
  }
  .nav-backdrop.is-open { opacity: 1; visibility: visible; }
  .nav {
    position: fixed; top: 0; right: 0; bottom: 0; z-index: 2;
    width: min(320px, 86vw);
    display: flex; flex-direction: column;
    background: #fff;
    box-shadow: -12px 0 40px -12px rgba(11,18,32,.3);
    overflow-y: auto; overscroll-behavior: contain;
    transform: translateX(100%); visibility: hidden;
    transition: transform .3s ease, visibility .3s ease;
  }
  .nav.is-open { transform: none; visibility: visible; }

  .nav__head {
    display: flex; align-items: center; justify-content: space-between; gap: 1rem;
    padding: .9rem 1.25rem; border-bottom: 1px solid var(--line);
  }
  .nav__head .brand__logo { height: 42px; }
  .nav__close { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 8px; border: 1px solid var(--line); color: var(--ink); }

  .nav__list { flex-direction: column; gap: 0; padding: .5rem .75rem; flex: 1; }
  .nav__item { display: grid; grid-template-columns: 1fr auto; align-items: center; }
  .nav__item + .nav__item { border-top: 1px solid var(--line); }
  .nav__link, .has-sub > .nav__link { padding: .85rem .5rem; border-radius: 0; font-size: 1rem; white-space: normal; }
  .nav__item:hover > .nav__link { background: none; }
  .nav__caret { position: static; transform: none; width: 40px; height: 40px; border-radius: 8px; }
  .nav__item.is-open > .nav__caret { background: var(--soft); color: var(--ink); }

  /* زیرمنو به شکل آکاردئون */
  .sub,
  .nav__item:hover > .sub,
  .nav__item:focus-within > .sub {
    position: static; grid-column: 1 / -1;
    display: none;
    min-width: 0; margin: 0 0 .6rem; padding: .25rem;
    border: 0; border-radius: var(--r); box-shadow: none;
    background: var(--soft);
    opacity: 1; visibility: visible; transform: none; transition: none;
  }
  .sub::before { content: none; }
  .nav__item.is-open > .sub { display: block; }
  .sub a { padding: .65rem .75rem; }

  .nav__foot { display: grid; gap: .9rem; padding: 1.25rem; border-top: 1px solid var(--line); }
  .nav__foot .header__phone { justify-content: center; }
}

@media (max-width: 1100px) {
  .dept-grid { grid-template-columns: repeat(2, 1fr); }
  .dept + .dept { border-right: 0; }
  .dept:nth-child(odd) { border-left: 1px solid var(--line); }
  .dept:nth-child(n+3) { border-top: 1px solid var(--line); }
  .hero__grid { gap: 2.5rem; }
  .hero__title { font-size: 2.4rem; }
}

@media (max-width: 960px) {
  .hero { padding-block: 3rem; }
  .hero__grid { grid-template-columns: 1fr; }
  .hero__title { font-size: 2rem; }

  .section { padding-block: 3.75rem; }
  .why { grid-template-columns: 1fr; gap: 2rem; }
  .offer { grid-template-columns: 1fr; gap: 2rem; }
  .course-grid { grid-template-columns: 1fr 1fr; }
  .blog-list { grid-template-columns: 1fr; }
  .post-card:nth-child(2) a { border-top: 1px solid var(--line); padding-top: 1.1rem; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 2.5rem 2rem; }
  .footer__about { grid-column: 1 / -1; }
  .footer__cta { padding: 1.5rem; }
}

@media (max-width: 640px) {
  .header__row .brand__logo { height: 42px; }
  .tiles { gap: .65rem; }
  .tile { min-height: 64px; padding: .85rem; font-size: .88rem; }
  .section__title { font-size: 1.55rem; }
  .hero__title { font-size: 1.7rem; }
  .dept-grid { grid-template-columns: 1fr; }
  .dept:nth-child(odd) { border-left: 0; }
  .dept + .dept { border-top: 1px solid var(--line); }
  .why__list { grid-template-columns: 1fr; }
  .course-grid { grid-template-columns: 1fr; }
  .offer h2 { font-size: 1.4rem; }
  .post-card a { grid-template-columns: 96px 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__cta-actions { width: 100%; }
  .footer__cta-actions .btn { flex: 1; }
  .footer__bottom { justify-content: center; text-align: center; }
  .footer__legal { justify-content: center; }
  .fab span { display: none; }
  .fab { padding: .8rem; }
  .contact { right: 1rem; bottom: 1rem; }
  .contact__panel { width: min(300px, calc(100vw - 2rem)); }
  .to-top { display: none; }
}

/* =========================================================
   Mobile polish — مشترک همه صفحات
   هدر خودپنهان، شیت پایین صفحه، ردیف کارت افقی، فوتر آکاردئونی
   ========================================================= */
:root { --sticky-top: var(--header-h); }
a, button, summary, label { -webkit-tap-highlight-color: transparent; }
a, button, summary, input, select, textarea, label { touch-action: manipulation; }
.header { transition: border-color var(--t), transform .3s ease; }
body.sheet-locked { overflow: hidden; }

/* صفحه لمسی hover ندارد: افکت بلندشدن کارت‌ها حذف و بازخورد لمسی جایگزین می‌شود */
@media (hover: none) {
  .course:hover, .dept:hover { transform: none; box-shadow: none; }
  .course:hover .course__media img, .course:hover .course__media h3 { transform: none; }
  .fab:hover { transform: none; background: var(--ink); }
  .btn:active { transform: scale(.97); }
  .course:active, .dept:active, .post-card a:active { transform: scale(.985); transition: transform .1s ease; }
}

/* ---------- Search inside drawer ---------- */
.nav__search { display: none; }

/* ---------- Bottom sheet ---------- */
.sheet-backdrop { position: fixed; inset: 0; z-index: 70; background: rgba(11,18,32,.45); opacity: 0; visibility: hidden; transition: opacity .3s ease, visibility .3s ease; }
.sheet-backdrop.is-open { opacity: 1; visibility: visible; }
.sheet {
  position: fixed; inset: auto 0 0 0; z-index: 71;
  max-height: 85vh; max-height: 85dvh;
  display: flex; flex-direction: column;
  background: #fff; border-radius: 20px 20px 0 0;
  box-shadow: 0 -20px 50px -20px rgba(11,18,32,.35);
  padding-bottom: env(safe-area-inset-bottom);
  transform: translateY(105%); visibility: hidden;
  transition: transform .35s cubic-bezier(.2,.8,.2,1), visibility .35s;
}
.sheet.is-open { transform: translateY(var(--drag, 0px)); visibility: visible; }
.sheet.is-dragging { transition: none; }
.sheet__handle { display: block; width: 40px; height: 4px; margin: .6rem auto .1rem; border-radius: 4px; background: #d3d8e0; }
.sheet__head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: .35rem 1.25rem .8rem; border-bottom: 1px solid var(--line); touch-action: none; cursor: grab; }
.sheet__head strong { color: var(--ink); font-size: 1.02rem; }
.sheet__close { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; background: var(--soft); color: var(--ink); }
.sheet__close .ic { width: 18px; height: 18px; }
.sheet__body { flex: 1; overflow-y: auto; overscroll-behavior: contain; padding: 1rem 1.25rem; }
.sheet__foot { display: flex; gap: .6rem; padding: .8rem 1.25rem; border-top: 1px solid var(--line); }
.sheet__foot .btn { flex: 1; }

/* ---------- Rail: ردیف افقی کارت‌ها در موبایل ---------- */
.rail-dots { display: none; }

/* ---------- Footer toggle (فقط در موبایل کلیک‌پذیر) ---------- */
.footer__toggle { font: inherit; color: inherit; text-align: inherit; cursor: default; pointer-events: none; }

@media (max-width: 960px) {
  .is-header-hidden { --sticky-top: 0px; }
  .is-header-hidden .header { transform: translateY(-100%); }
  .fab { transition: transform .3s ease, opacity .3s ease, background var(--t); }
  .is-header-hidden .fab:not(.is-open) { transform: translateY(calc(100% + 2rem)); opacity: 0; pointer-events: none; }
}

@media (max-width: 1240px) {
  .nav__search { display: flex; align-items: center; gap: .5rem; margin: .9rem 1.25rem .25rem; padding: 0 .85rem; border: 1px solid var(--line); border-radius: 12px; background: var(--soft); transition: border-color var(--t), background var(--t); }
  .nav__search:focus-within { border-color: var(--accent); background: #fff; }
  .nav__search .ic { width: 18px; height: 18px; color: var(--muted); }
  .nav__search input { flex: 1; min-width: 0; padding: .7rem 0; border: 0; outline: 0; background: none; font-size: .95rem; color: var(--ink); }
  .nav__search input::-webkit-search-cancel-button { display: none; }
}

@media (max-width: 640px) {
  :root { --header-h: 64px; }
  .header__row .btn--sm { padding: .45rem .95rem; font-size: .86rem; }
  .header__row .brand__logo { height: 38px; }
  .nav-toggle { width: 40px; height: 40px; }

  .rail { display: flex !important; gap: .9rem !important; overflow-x: auto; scroll-snap-type: x mandatory; scroll-padding-inline: 1.25rem; margin-inline: -1.25rem; padding: .25rem 1.25rem 1rem; scrollbar-width: none; }
  .rail::-webkit-scrollbar { display: none; }
  .rail > * { flex: 0 0 84%; min-width: 0; scroll-snap-align: center; }
  .rail-dots { display: flex; justify-content: center; gap: 2px; margin-top: .25rem; }
  .rail-dots button { width: 18px; height: 18px; display: grid; place-items: center; padding: 0; }
  .rail-dots button::before { content: ""; width: 7px; height: 7px; border-radius: 999px; background: #cfd5de; transition: width .25s ease, background .25s ease; }
  .rail-dots button.is-active::before { width: 18px; background: var(--accent); }

  /* صفحه اصلی: دپارتمان‌ها دو ستونه و فشرده */
  .dept-grid { grid-template-columns: 1fr 1fr; }
  .dept { padding: 1.1rem 1rem 1rem; gap: .4rem; }
  .dept + .dept { border-top: 0; border-right: 0; }
  .dept:nth-child(even) { border-right: 1px solid var(--line); }
  .dept:nth-child(n+3) { border-top: 1px solid var(--line); }
  .dept__num { display: none; }
  .dept .ic--lg { width: 28px; height: 28px; margin-bottom: .25rem; }
  .dept h3 { font-size: .98rem; line-height: 1.6; }
  .dept__more { font-size: .8rem; margin-top: .25rem; }
  .why__list { gap: .75rem; }
  .why__list li { padding: 1rem; }

  /* فوتر آکاردئونی */
  .footer.is-enhanced .footer__grid { gap: 0; padding-block: 2.5rem 1.5rem; }
  .footer.is-enhanced .footer__about { margin-bottom: 1.5rem; }
  .footer.is-enhanced .footer__col { border-top: 1px solid rgba(255,255,255,.08); }
  .footer.is-enhanced .footer__col:last-child { border-bottom: 1px solid rgba(255,255,255,.08); }
  .footer.is-enhanced .footer__title { margin: 0; }
  .footer.is-enhanced .footer__toggle { display: flex; justify-content: space-between; align-items: center; width: 100%; padding: 1rem 0; cursor: pointer; pointer-events: auto; }
  .footer.is-enhanced .footer__toggle::after { content: ""; width: 8px; height: 8px; border-left: 1.5px solid #7d8797; border-bottom: 1.5px solid #7d8797; transform: rotate(-45deg) translateY(-2px); transition: transform var(--t); }
  .footer.is-enhanced .footer__col.is-open .footer__toggle::after { transform: rotate(135deg) translateY(-2px); }
  .footer.is-enhanced .footer__col > ul { display: none; padding-bottom: 1.1rem; }
  .footer.is-enhanced .footer__col.is-open > ul { display: grid; }

  .contact { bottom: calc(1rem + env(safe-area-inset-bottom)); }
}