/* =======================================================
   شريط التنقل المحسّن والمتجاوب بالكامل
   ======================================================= */

/* الشريط الأساسي */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--card-bg) !important;
  border-bottom: 1px solid var(--card-border);
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.navbar.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* اللوجو */
.navbar-brand {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--primary) !important;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}

.navbar-brand:hover {
  color: var(--primary) !important;
  transform: scale(1.05);
  text-decoration: none;
}

/* زر الهامبرجر */
.navbar-toggler {
  border: 2px solid var(--card-border);
  border-radius: 8px;
  padding: 8px 12px;
  transition: all 0.3s ease;
}

.navbar-toggler:hover {
  border-color: var(--primary);
  background: rgba(13, 110, 253, 0.05);
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.2);
  outline: none;
}

.navbar-toggler-icon {
  width: 24px;
  height: 24px;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(13, 110, 253, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

[data-theme="dark"] .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(77, 171, 247, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* القائمة */
.navbar-nav {
  gap: 5px;
}

.nav-item {
  position: relative;
}

.nav-link {
  color: var(--text) !important;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 8px 16px !important;
  border-radius: 8px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.nav-link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 3px;
  background: var(--primary);
  transform: translateX(-50%);
  transition: width 0.3s ease;
}

.nav-link:hover {
  color: var(--primary) !important;
  background: rgba(13, 110, 253, 0.05);
  text-decoration: none;
}

.nav-link:hover::before {
  width: 80%;
}

.nav-link.active {
  color: var(--primary) !important;
  background: rgba(13, 110, 253, 0.1);
  font-weight: 700;
}

.nav-link.active::before {
  width: 80%;
}

/* أدوات الشريط (الثيم + اللغة) */
.navbar .d-flex {
  gap: 10px;
}

.theme-toggle {
  border: 2px solid var(--card-border);
  background: var(--card-bg);
  padding: 8px 12px;
  border-radius: 50px;
  font-size: 1.2rem;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
}

.theme-toggle:hover {
  border-color: var(--primary);
  background: rgba(13, 110, 253, 0.05);
  transform: rotate(20deg);
}

/* =======================================================
   للشاشات الصغيرة (الجوالات)
   ======================================================= */
@media (max-width: 991px) {
  /* القائمة المنسدلة */
  .navbar-collapse {
    background: var(--card-bg);
    border-radius: 12px;
    margin-top: 15px;
    padding: 15px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--card-border);
  }

  .navbar-nav {
    gap: 8px;
  }

  .nav-link {
    padding: 12px 16px !important;
    border-radius: 8px;
  }

  .nav-link::before {
    display: none;
  }

  .nav-link:hover,
  .nav-link.active {
    background: rgba(13, 110, 253, 0.1);
  }

  /* أدوات الشريط في الجوال */
  .navbar .d-flex {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--card-border);
    justify-content: center;
    flex-wrap: wrap;
  }

  .navbar-brand {
    font-size: 1rem;
  }
}

/* =======================================================
   للشاشات المتوسطة (التابلت)
   ======================================================= */
@media (min-width: 768px) and (max-width: 991px) {
  .navbar-brand {
    font-size: 1.1rem;
  }

  .nav-link {
    font-size: 0.9rem;
    padding: 10px 14px !important;
  }
}

/* =======================================================
   للشاشات الكبيرة جداً
   ======================================================= */
@media (min-width: 1400px) {
  .navbar-brand {
    font-size: 1.3rem;
  }

  .nav-link {
    font-size: 1rem;
    padding: 10px 18px !important;
  }
}

/* =======================================================
   تأثيرات الانيميشن
   ======================================================= */

/* انيميشن فتح القائمة في الجوال */
@media (max-width: 991px) {
  .navbar-collapse.collapsing {
    transition: height 0.35s ease;
  }

  .navbar-collapse.show {
    animation: slideDown 0.3s ease;
  }

  @keyframes slideDown {
    from {
      opacity: 0;
      transform: translateY(-20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  /* انيميشن العناصر داخل القائمة */
  .navbar-collapse.show .nav-item {
    animation: fadeInUp 0.4s ease backwards;
  }

  .navbar-collapse.show .nav-item:nth-child(1) { animation-delay: 0.05s; }
  .navbar-collapse.show .nav-item:nth-child(2) { animation-delay: 0.1s; }
  .navbar-collapse.show .nav-item:nth-child(3) { animation-delay: 0.15s; }
  .navbar-collapse.show .nav-item:nth-child(4) { animation-delay: 0.2s; }
  .navbar-collapse.show .nav-item:nth-child(5) { animation-delay: 0.25s; }
  .navbar-collapse.show .nav-item:nth-child(6) { animation-delay: 0.3s; }
  .navbar-collapse.show .nav-item:nth-child(7) { animation-delay: 0.35s; }
  .navbar-collapse.show .nav-item:nth-child(8) { animation-delay: 0.4s; }
  .navbar-collapse.show .nav-item:nth-child(9) { animation-delay: 0.45s; }
  .navbar-collapse.show .nav-item:nth-child(10) { animation-delay: 0.5s; }

  @keyframes fadeInUp {
    from {
      opacity: 0;
      transform: translateY(10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}

/* =======================================================
   تحسينات للثيم الداكن
   ======================================================= */
[data-theme="dark"] .navbar {
  background: var(--card-bg) !important;
  border-bottom-color: var(--card-border);
}

[data-theme="dark"] .navbar-brand {
  color: var(--primary) !important;
}

[data-theme="dark"] .nav-link {
  color: var(--text) !important;
}

[data-theme="dark"] .nav-link:hover,
[data-theme="dark"] .nav-link.active {
  color: var(--primary) !important;
}

[data-theme="dark"] .navbar-toggler {
  border-color: var(--card-border);
}

[data-theme="dark"] .navbar-toggler:hover {
  border-color: var(--primary);
  background: rgba(77, 171, 247, 0.1);
}

[data-theme="dark"] .theme-toggle {
  border-color: var(--card-border);
  background: var(--card-bg);
}

[data-theme="dark"] .theme-toggle:hover {
  border-color: var(--primary);
  background: rgba(77, 171, 247, 0.1);
}

@media (max-width: 991px) {
  [data-theme="dark"] .navbar-collapse {
    background: var(--card-bg);
    border-color: var(--card-border);
  }
}

/* =======================================================
   تحسينات الأداء
   ======================================================= */

/* تحسين الأداء للانيميشن */
.navbar,
.nav-link,
.navbar-toggler,
.theme-toggle {
  will-change: transform;
}

/* تقليل الحركة للمستخدمين الذين يفضلون ذلك */
@media (prefers-reduced-motion: reduce) {
  .navbar,
  .nav-link,
  .navbar-toggler,
  .theme-toggle,
  .navbar-collapse {
    animation: none !important;
    transition: none !important;
  }
}