/* 🌑 هدر تیره مدرن */
.guest-header {
  background: rgba(20, 20, 20, 0.85);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 6px 18px rgba(0,0,0,0.3);
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.guest-header .container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* 👨‍🍳 لوگو */
.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 700;
  color: #fefefe;
  letter-spacing: -0.3px;
  text-shadow: 0 1px 3px rgba(0,0,0,0.3);
}
.logo img {
  max-width: 100px;
}
.header-logo img {
  height: 40px;
  filter: drop-shadow(0 2px 4px rgba(255,255,255,0.1));
}

/* 🧭 ناوبری */
.guest-nav ul {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.guest-nav a {
  color: #e0e0e0;
  font-weight: 500;
  font-size: 1rem;
  padding: 8px 14px;
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.2s ease;
  position: relative;
}

.guest-nav a:hover {
  background-color: rgba(255, 255, 255, 0.08);
  color: #fff;
  transform: translateY(-1px);
}

.guest-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 0%;
  height: 2px;
  background: #ff6a6a;
  transition: width 0.3s ease;
}

.guest-nav a:hover::after {
  width: 60%;
}

/* 🔒 دکمه ورود */
.btn-login {
  background: linear-gradient(135deg, #ff4e50, #f9d423);
  color: #222;
  font-weight: bold;
  border: none;
  border-radius: 999px;
  padding: 8px 24px;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(255,78,80,0.25);
}

.btn-login:hover {
  opacity: 0.9;
  transform: scale(1.05);
}

/* حالت active */
.guest-nav .active a {
  color: #fff;
  background-color: rgba(255, 255, 255, 0.1);
}

.guest-nav .active a::after {
  width: 60%;
}

/* موبایل */
@media (max-width: 768px) {
  .guest-header .container {
    flex-direction: column;
    gap: 10px;
  }

  .guest-nav ul {
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
  }

  .guest-nav a {
    font-size: 0.9rem;
    padding: 8px 12px;
  }

  .btn-login {
    font-size: 0.9rem;
    padding: 8px 18px;
  }
}