/* ═══════════════════════════════════════════════════════════
   هشت — هدر دسکتاپ / تبلت
   ناوبری افقی؛ منوی کشویی فقط در mobile-app.css
   ═══════════════════════════════════════════════════════════ */

.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: transparent;
  border-bottom: 1px solid transparent;
  transform: perspective(56rem) rotateX(-94deg);
  transform-origin: 50% 0;
  opacity: 0;
  transition:
    transform 1s var(--ease-out),
    opacity 0.8s var(--ease-out),
    background-color var(--dur) var(--ease-out),
    border-color var(--dur) var(--ease-out);
}

.site-header.is-open {
  transform: perspective(56rem) rotateX(0);
  opacity: 1;
}

.site-header.is-rolled {
  transform: perspective(56rem) rotateX(-94deg);
  opacity: 0;
  pointer-events: none;
}

.site-header.is-scrolled {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 100%;
}

/* کلاهک موبایل داخل کشو — پیش‌فرض مخفی */
.header__nav-top {
  display: none;
}

.header__brand,
.header__nav .header__link,
.header__nav .header__cta,
.header__tools {
  opacity: 0;
  transform: translateY(-12px);
  transition:
    opacity 0.55s var(--ease-out),
    transform 0.55s var(--ease-out),
    color var(--dur) var(--ease-out),
    background-color var(--dur) var(--ease-out),
    border-color var(--dur) var(--ease-out);
}

.site-header.is-open .header__brand,
.site-header.is-open .header__nav .header__link,
.site-header.is-open .header__nav .header__cta,
.site-header.is-open .header__tools {
  opacity: 1;
  transform: none;
}

.site-header.is-open .header__brand { transition-delay: 0.35s; }
.site-header.is-open .header__nav .header__link:nth-of-type(1) { transition-delay: 0.45s; }
.site-header.is-open .header__nav .header__link:nth-of-type(2) { transition-delay: 0.5s; }
.site-header.is-open .header__nav .header__link:nth-of-type(3) { transition-delay: 0.55s; }
.site-header.is-open .header__nav .header__link:nth-of-type(4) { transition-delay: 0.6s; }
.site-header.is-open .header__nav .header__link:nth-of-type(5) { transition-delay: 0.65s; }
.site-header.is-open .header__nav .header__link:nth-of-type(6) { transition-delay: 0.7s; }
.site-header.is-open .header__nav .header__cta { transition-delay: 0.75s; }
.site-header.is-open .header__tools { transition-delay: 0.85s; }

.site-header.is-settled .header__brand,
.site-header.is-settled .header__nav .header__link,
.site-header.is-settled .header__nav .header__cta,
.site-header.is-settled .header__tools {
  transition-delay: 0s;
}

.header__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
}

.header__logo {
  height: 2.1rem;
  width: auto;
}

.header__wordmark {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: clamp(0.9rem, 2vw, 1.7rem);
}

.header__link {
  position: relative;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-dim);
  padding-block: 0.4rem;
  white-space: nowrap;
  transition: color var(--dur) var(--ease-out);
}

.header__link::after {
  content: "";
  position: absolute;
  bottom: 0;
  inset-inline-start: 0;
  width: 100%;
  height: 1px;
  background: var(--c-gold);
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform var(--dur) var(--ease-out);
}

.header__link:hover,
.header__link.is-active {
  color: var(--text);
}

.header__link:hover::after,
.header__link.is-active::after {
  transform: scaleX(1);
}


.header__join-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.45rem;
  padding: 0.48rem 1.15rem;
  border: 1px solid var(--c-gold);
  border-radius: 999px;
  background: transparent;
  color: var(--c-gold) !important;
  font-size: 0.875rem;
  font-weight: 800;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  transition: background-color var(--dur) var(--ease-out), color var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
}

.header__join-cta:hover,
.header__join-cta:focus-visible {
  background: color-mix(in srgb, var(--c-gold) 10%, transparent);
  color: var(--c-gold) !important;
  transform: translateY(-1px);
}

.header__cta {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--c-gold);
  border: 1px solid rgba(240, 180, 41, 0.45);
  border-radius: 999px;
  padding: 0.5rem 1.3rem;
  white-space: nowrap;
  transition:
    background-color var(--dur) var(--ease-out),
    color var(--dur) var(--ease-out);
}

.header__cta:hover {
  background: var(--c-gold);
  color: var(--on-gold);
}

.header__tools {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

/* تم: فقط آیکون، بدون دایره و استروک قاب */
.theme-toggle {
  position: relative;
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border: none;
  border-radius: 0;
  background: transparent;
  cursor: pointer;
  padding: 0;
  box-shadow: none;
}

.theme-toggle__icon {
  grid-area: 1 / 1;
  width: 1.25rem;
  height: 1.25rem;
  color: var(--text-dim);
  transition:
    opacity 0.45s var(--ease-out),
    transform 0.55s var(--ease-out),
    color 0.35s var(--ease-out);
}

.theme-toggle:hover .theme-toggle__icon {
  color: var(--c-gold);
}

[data-theme="dark"] .theme-toggle__icon--sun,
[data-theme="light"] .theme-toggle__icon--moon {
  opacity: 0;
  transform: scale(0.35) rotate(-120deg);
  pointer-events: none;
}

[data-theme="dark"] .theme-toggle__icon--moon,
[data-theme="light"] .theme-toggle__icon--sun {
  opacity: 1;
  transform: none;
}

.theme-toggle:hover .theme-toggle__icon--moon,
.theme-toggle:hover .theme-toggle__icon--sun {
  transform: rotate(20deg) scale(1.08);
}

[data-theme="dark"] .theme-toggle:hover .theme-toggle__icon--sun,
[data-theme="light"] .theme-toggle:hover .theme-toggle__icon--moon {
  transform: scale(0.35) rotate(-120deg);
}

/* همبرگر فقط موبایل */
.header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.4rem;
  height: 2.4rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.header__toggle span {
  display: block;
  width: 1.25rem;
  height: 2px;
  margin-inline: auto;
  background: var(--text);
  border-radius: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .site-header {
    transform: none;
    opacity: 1;
  }

  .header__brand,
  .header__nav .header__link,
  .header__nav .header__cta,
  .header__tools {
    opacity: 1;
    transform: none;
  }
}

/* R10 — حفظ نسبت عمودی نشان رسمی */
.header__logo{width:auto!important;height:3.5rem!important;object-fit:contain;object-position:center}
.header__nav-logo{width:auto!important;height:3.75rem!important;object-fit:contain}