/*
  F1Key Website - Navigation Component
  Fixed navbar with scroll effects and mobile menu
*/

/* ==================== */
/* NAVBAR BASE */
/* ==================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-navbar);
  padding: var(--spacing-md) var(--container-padding);
  transition: all var(--transition-normal) var(--ease-in-out);
  background-color: transparent;
}

/* Scrolled state */
.navbar.scrolled {
  padding: var(--spacing-sm) var(--container-padding);
  background-color: rgba(15, 15, 15, 0.98);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  box-shadow: 0 2px 24px rgba(220, 20, 60, 0.15),
              0 8px 40px rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

/* Navbar content wrapper */
.navbar > .container,
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ==================== */
/* LOGO */
/* ==================== */

.logo {
  font-family: var(--font-primary);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: var(--font-weight-black);
  color: var(--color-white);
  letter-spacing: var(--letter-spacing-tight);
  transition: var(--transition-color);
  text-decoration: none;
  z-index: calc(var(--z-navbar) + 2);
  position: relative;
}

.logo:hover {
  color: var(--color-ferrari-red);
}

.logo .highlight {
  color: var(--color-ferrari-red);
}

/* ==================== */
/* NAVIGATION LINKS */
/* ==================== */

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links li {
  margin: 0;
}

.nav-links a {
  position: relative;
  font-family: var(--font-secondary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-white);
  text-decoration: none;
  transition: var(--transition-color);
  padding: 0.5rem 0;
  display: inline-block;
}

/* Underline animation */
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-ferrari-red);
  transition: width var(--transition-normal) var(--ease-out);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a:hover {
  color: var(--color-ferrari-red);
}

/* ==================== */
/* MOBILE MENU TOGGLE */
/* ==================== */

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 0.5rem;
  z-index: calc(var(--z-navbar) + 2);
  position: relative;
  background: none;
  border: none;
}

.menu-toggle span {
  display: block;
  width: 28px;
  height: 3px;
  background-color: var(--color-white);
  border-radius: var(--radius-full);
  transition: all var(--transition-normal) var(--ease-in-out);
}

/* Hamburger animation to X */
.menu-toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: translateX(-20px);
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ==================== */
/* RESPONSIVE - MOBILE */
/* ==================== */

@media (max-width: 968px) {
  .menu-toggle {
    display: flex;
  }
  
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    max-width: 300px;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    gap: 0;
    padding: calc(var(--spacing-xl) + var(--spacing-lg)) var(--spacing-lg) var(--spacing-lg);
    transition: right var(--transition-normal) var(--ease-in-out);
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.5);
  }
  
  .nav-links.active {
    right: 0;
  }
  
  .nav-links li {
    width: 100%;
    border-bottom: 1px solid var(--color-medium-gray);
  }
  
  .nav-links a {
    width: 100%;
    padding: var(--spacing-sm) 0;
    font-size: var(--font-size-lg);
  }
  
  /* Overlay when menu is open */
  .nav-links.active::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: -1;
  }
}

@media (max-width: 640px) {
  .navbar {
    padding: var(--spacing-sm) var(--container-padding);
  }
  
  .navbar.scrolled {
    padding: calc(var(--spacing-sm) * 0.75) var(--container-padding);
  }
  
  .logo {
    font-size: 1.5rem;
  }
  
  .nav-links {
    width: 80%;
    max-width: none;
  }
}

/* ==================== */
/* ACCESSIBILITY */
/* ==================== */

/* Focus states */
.logo:focus-visible,
.nav-links a:focus-visible {
  outline: 2px solid var(--color-ferrari-red);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

.menu-toggle:focus-visible {
  outline: 2px solid var(--color-ferrari-red);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

/* Keyboard navigation highlight */
.nav-links a:focus {
  color: var(--color-ferrari-red);
}

/* ==================== */
/* ACTIVE LINK STATE */
/* ==================== */

.nav-links a.active {
  color: var(--color-ferrari-red);
}

/* ==================== */
/* REDUCED MOTION */
/* ==================== */

@media (prefers-reduced-motion: reduce) {
  .navbar,
  .nav-links,
  .nav-links a::after,
  .menu-toggle span {
    transition: none;
  }
}