/* ===== MODERN NAVIGATION 2025 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(16, 30, 25, 0.85);
  backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  z-index: 10000;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  transform: translateY(0);
  will-change: transform, background-color;
  pointer-events: auto;
}

.navbar.scrolled {
  background: rgba(16, 30, 25, 0.95);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(234, 95, 71, 0.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

.navbar.hidden {
  transform: translateY(-100%);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  max-width: var(--container-xl);
  margin: 0 auto;
}

.nav-brand {
  flex-shrink: 0;
}

.nav-logo-link {
  display: block;
  transition: var(--transition-fast);
}

.nav-logo-link:hover {
  transform: scale(1.05);
}

.nav-logo {
  height: 3.2rem;
  width: auto;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: rgba(255, 255, 255, 0.8);
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  position: relative;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.nav-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.nav-link:hover::before {
  left: 100%;
}

.nav-link:hover {
  color: var(--color-text-inverse);
  background: rgba(255, 255, 255, 0.05);
  transform: translateY(-1px);
}

.nav-cta {
  background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
  color: var(--color-text-inverse) !important;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.nav-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.nav-cta:hover::before {
  left: 100%;
}

.nav-cta:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 8px 25px rgba(234, 95, 71, 0.4);
  background: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
  border-color: rgba(255, 255, 255, 0.4);
}

.nav-cta:active {
  transform: translateY(0) scale(0.98);
  transition: transform 0.1s ease;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 4.8rem;
  height: 4.8rem;
  cursor: pointer;
  border: none;
  background: none;
  position: relative;
  z-index: 10003;
  pointer-events: auto;
}

.nav-toggle span {
  display: block;
  width: 2.4rem;
  height: 0.2rem;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 0.2rem;
  transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  transform-origin: center;
  position: relative;
}

.nav-toggle span:nth-child(1) {
  margin-bottom: 0.5rem;
}

.nav-toggle span:nth-child(2) {
  margin-bottom: 0.5rem;
  width: 2rem;
}

.nav-toggle span:nth-child(3) {
  width: 1.6rem;
}

/* Advanced hamburger animation */
.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(0.5rem, 0.5rem);
  width: 2.4rem;
  background: var(--color-secondary);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: scale(0);
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(0.7rem, -0.6rem);
  width: 2.4rem;
  background: var(--color-secondary);
}

/* Add magnetic effect */
.nav-toggle::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 4rem;
  height: 4rem;
  background: rgba(234, 95, 71, 0.1);
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0);
  transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  z-index: -1;
}

.nav-toggle:hover::before {
  transform: translate(-50%, -50%) scale(1);
}

/* ===== MOBILE NAVIGATION ===== */
@media (max-width: 768px) {
  .navbar {
    padding: 0;
  }
  
  .nav-container {
    padding: var(--space-md) var(--space-lg);
    min-height: 6.4rem;
    position: relative;
  }

  .nav-logo {
    height: 3.2rem;
  }

  /* Hide desktop navigation on mobile */
  .nav-menu {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh; /* Dynamic viewport height per mobile */
    background: linear-gradient(135deg, #18251e 0%, #101e19 100%);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--space-xl);
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), opacity 0.3s ease, visibility 0s linear 0.4s;
    z-index: 10002;
    padding: var(--space-2xl);
    pointer-events: none;
    transform: translateX(-100%);
    opacity: 0;
    visibility: hidden;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
  }
  .nav-menu.active {
    transform: translateX(0) !important;
    opacity: 1 !important;
    visibility: visible !important;
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), opacity 0.3s ease, visibility 0s linear 0s;
    pointer-events: auto !important;
  }
  .nav-toggle {
    display: flex;
    z-index: 10003;
    /* position relative - già nel nav-container */
    flex-shrink: 0;
  }
  .nav-link {
    font-size: clamp(1.8rem, 5vw, 2.2rem);
    padding: var(--space-sm) var(--space-lg);
    text-align: center;
    width: 80%;
    max-width: 30rem;
    min-height: 5.6rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    border-radius: var(--radius-lg);
    border: 1.5px solid rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.08);
    outline: none;
    transition: background 0.3s, border-color 0.3s, color 0.3s, transform 0.3s;
  }
  .nav-link:focus {
    outline: 2px solid var(--color-accent, #ea5f47);
    outline-offset: 2px;
  }
  .nav-link:hover,
  .nav-link:focus-visible {
    background: rgba(234, 95, 71, 0.13);
    border-color: rgba(234, 95, 71, 0.35);
    color: #fff;
    transform: translateY(-2px);
  }
  .nav-cta {
    margin-top: var(--space-md);
    background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
    color: #fff !important;
    font-weight: var(--font-weight-semibold);
    padding: var(--space-md) var(--space-xl);
    border: 1.5px solid rgba(255, 255, 255, 0.25);
    box-shadow: 0 4px 15px rgba(234, 95, 71, 0.3);
    outline: none;
    transition: background 0.3s, border-color 0.3s, transform 0.3s, box-shadow 0.3s;
  }
  .nav-cta:focus {
    outline: 2px solid var(--color-accent, #ea5f47);
    outline-offset: 2px;
  }
  .nav-cta:hover,
  .nav-cta:focus-visible {
    background: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(234, 95, 71, 0.4);
    border-color: rgba(255, 255, 255, 0.4);
    color: #fff !important;
  }
  body.nav-open {
    overflow: hidden;
    height: 100vh;
  }
}

/* Small mobile adjustments */
@media (max-width: 480px) {
  .nav-container {
    padding: var(--space-sm) var(--space-md);
    min-height: 5.6rem;
  }
  .nav-logo {
    height: 2.8rem;
  }
  .nav-toggle {
    width: 4.4rem;
    height: 4.4rem;
  }
  .nav-link {
    width: 92%;
    font-size: var(--font-size-base);
    padding: var(--space-xs) var(--space-md);
    min-height: 3.6rem;
  }
  .nav-cta {
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-base);
  }
}