:root {
  --nav-bg:        #000000;
  --nav-secondary: #111111;
  --nav-text:      #e0e0e0;
  --nav-hover:     #00adee;
  --nav-border:    #f1d145;
}

/* ===================== */
/* Navbar Base */
/* ===================== */
.navbar {
  background: var(--nav-bg);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 9999;
  border-bottom: 1px solid var(--nav-border);
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.5);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 2rem;
}

.navbar .logo img {
  height: 60px;
  transition: transform 0.2s ease;
}

.navbar .logo img:hover {
  transform: scale(1.05);
}

/* ===================== */
/* Nav Menu */
/* ===================== */
.nav-menu {
  list-style: none;
  display: flex;
  gap: 2.2rem;
  margin: 0;
  padding: 0;
}

.nav-menu li {
  position: relative;
}

.nav-menu a {
  color: var(--nav-text);
  text-decoration: none;
  font-weight: 500;
  padding: 0.75rem 0;
  transition: color 0.2s ease;
}

.nav-menu a:hover {
  color: var(--nav-hover);
}

/* ===================== */
/* Submenu Dropdown */
/* ===================== */
.has-submenu:hover .submenu {
  display: block;
}

.submenu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--nav-secondary);
  padding: 0.4rem 0.2rem;
  border-radius: 6px;
  box-shadow: 0 8px 16px rgba(0,0,0,0.7);
  z-index: 10000;
  list-style: none;
  margin: 0;
  min-width: 220px;
}

.submenu li {
  padding: 0;
  width: 100%;
}

.submenu li a {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--nav-text);
  font-size: 0.85rem;
  width: 100%;
  box-sizing: border-box;
  transition: background 0.2s ease, color 0.2s ease;
}

.submenu li a:hover {
  background-color: #1a1a1a;
  color: var(--nav-hover);
}

/* ===================== */
/* Hamburger Button */
/* ===================== */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 10001;
}

.hamburger,
.hamburger::before,
.hamburger::after {
  width: 26px;
  height: 3px;
  background: var(--nav-text);
  position: relative;
  display: block;
  border-radius: 2px;
  transition: all 0.3s ease;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}

.hamburger::before { top: -8px; }
.hamburger::after { top: 8px; }

.nav-toggle.active .hamburger {
  background: transparent;
}

.nav-toggle.active .hamburger::before {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active .hamburger::after {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===================== */
/* Mobile Styles */
/* ===================== */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: 260px;
    flex-direction: column;
    align-items: flex-start;
    background: var(--nav-bg);
    transform: translateX(100%);
    transition: transform 0.35s ease;
    padding: 5rem 1.5rem 2rem;
    border-left: 1px solid var(--nav-border);
    overflow-y: auto;
    gap: 1.2rem;
  }

  .nav-menu_visible {
    transform: translateX(0);
  }

  .nav-menu li {
    border-bottom: 1px solid rgba(241, 209, 69, 0.2);
    width: 100%;
  }

  .nav-menu li:last-child {
    border-bottom: none;
  }

  .nav-menu a {
    display: block;
    width: 100%;
    padding: 0.8rem 0;
    font-size: 1rem;
  }

  /* Mobile submenu toggle behavior */
  .has-submenu .submenu {
    display: none;
    position: static;
    background: var(--nav-secondary);
    border-left: 3px solid var(--nav-border);
    border-radius: 4px;
    margin-top: 0.3rem;
    padding: 0.4rem 0;
  }

  .has-submenu.open .submenu {
    display: block;
  }

  .submenu li a {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
  }
}

/* ===================== */
/* Responsive Adjustments */
/* ===================== */

/* Large Tablets (≤ 991px) */
@media (max-width: 991px) {
  .navbar .container {
    padding: 0.8rem 1.5rem;
  }

  .nav-menu {
    gap: 1.5rem;
  }

  .nav-menu a {
    font-size: 0.95rem;
  }
}

/* Phones (≤ 767px) */
@media (max-width: 767px) {
  .navbar .container {
    padding: 0.8rem 1rem;
  }

  .navbar .logo img {
    height: 60px;
  }

  .hamburger,
  .hamburger::before,
  .hamburger::after {
    width: 22px;
    height: 2.5px;
  }

  .nav-menu {
    width: 220px;
    padding-top: 1rem;
  }

  .nav-menu a {
    font-size: 0.9rem;
    padding: 0.6rem 0.8rem;
  }

  .submenu li a {
    font-size: 0.85rem;
    padding: 0.5rem 0.8rem;
  }
}

/* Small Phones (≤ 480px) */
@media (max-width: 480px) {
  .navbar .container {
    padding: 0.6rem 0.8rem;
  }

  .navbar .logo img {
    height: 60px;
  }

  .nav-menu {
    width: 100%;
    right: 0;
    left: 0;
    border-top: 1px solid var(--nav-border);
    padding-top: 1rem;
  }

  .nav-menu li {
    border-bottom: 1px solid var(--nav-border);
  }

  .nav-menu a {
    font-size: 0.85rem;
    padding: 0.7rem 1rem;
  }

  .submenu li a {
    font-size: 0.8rem;
    padding: 0.6rem 1rem;
  }
}

/* ===================== */
/* Touch-Friendly Enhancements */
/* ===================== */
@media (hover: none) and (pointer: coarse) {
  .has-submenu > a::after {
    content: "▾";
    margin-left: 0.4rem;
    font-size: 0.8rem;
    color: var(--nav-hover);
  }
}

/* ===================== */
/* Smooth Animations */
/* ===================== */
.submenu,
.nav-menu {
  transition: all 0.3s ease;
}

.nav-menu a,
.submenu li a {
  transition: color 0.25s ease, background 0.25s ease;
}

/* ===================== */
/* Scroll Shadow Effect */
/* ===================== */
.navbar.scrolled {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.7);
  background: #000000e6;
}

/* ===================== */
/* Utility Fixes */
/* ===================== */
html, body {
  scroll-behavior: smooth;
}