/* ============================================
   FILE: navbar.css
   PURPOSE: Fixed top navigation — glassmorphism, active states, mobile
   ============================================ */

#navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 9999;
  
 transition: all 0.3s ease;
  justify-content: space-between;
  align-items: center;
  padding: 14px 40px;
  background: var(--bg-overlay);
  backdrop-filter: blur(8px);

  border-bottom: 1px solid var(--border-color);
}

/* Glass backing */
#navbar::before {
  content: '';
  position: absolute;
  inset: 0;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(2, 12, 10, 0.65);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
  z-index: -1;
}

/* Scrolled state */
#navbar.scrolled::before {
  background: rgba(2, 12, 10, 0.9);
  border-bottom-color: var(--border-hover);
  box-shadow: 0 4px 30px rgba(0,0,0,0.4), 0 1px 0 var(--accent-dim);
}

/* ── Container ── */
.nav-container {
  max-width: var(--container-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
}

/* ── Logo ── */
.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent-primary);
  text-shadow: var(--glow);
  min-width: 120px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-logo span {
  color: var(--text-main);
}

/* ── Nav Links ── */
.nav-links {
  display: flex;
  list-style: none;
  gap: 8px;
  align-items: center;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  padding: 6px 10px;
  border-radius: 4px;
  border: 1px solid transparent;
  position: relative;
  transition: all 0.3s ease;
  text-transform: uppercase;
}



.nav-link::before {
  content: attr(data-section);
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0;
  transition: opacity 0.25s;
  pointer-events: none;
}

.nav-link:hover {
  color: var(--accent-primary);
  text-shadow: var(--glow);
  background: transparent; /* remove dull bg */
  border-color: transparent;
}

/* Active link */
.nav-link.active {
  color: var(--accent-primary);
  background: transparent;
  border: none;
  box-shadow: none;
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;

  width: 100%;
  height: 2px;

  background: var(--accent-primary);
box-shadow: var(--glow);
}
.nav-link.active::before { opacity: 1; }

/* ── Hamburger ── */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  gap: 5px;
  padding: 10px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.hamburger:hover {
  border-color: var(--accent-primary);
  box-shadow: var(--glow);
}

.hamburger .bar {
  width: 22px;
  height: 2px;
  background: var(--accent-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* Hamburger open state */
.hamburger.open .bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.open .bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger.open .bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Mobile Menu ── */
.nav-links.open {
  display: flex;
  flex-direction: column;

  position: absolute;
  top: 65px;
  left: 12px;
  right: 12px;

  background: var(--bg-card-solid);
  backdrop-filter: blur(12px);

  padding: 16px;
  border-radius: 12px;

  align-items: center;
  gap: 8px;

  border: 1px solid var(--border-color);
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.nav-links.open .nav-link {
  width: 100%;
  text-align: left;
  padding: 10px 16px;
}

/* ============================================
   THEME SWITCHER STYLES
   ADD THIS TO THE END OF navbar.css
   ============================================ */

/* ── Theme Switcher Container ── */
.theme-switcher-container {
  position: relative;
}

.theme-switcher {
  position: relative;
  display: flex;
  align-items: center;
}

/* ── Theme Toggle Button ── */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  color: var(--accent-primary);
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.theme-toggle::before {
  content: '';
  position: absolute;
  inset: -50%;
  background: radial-gradient(circle, var(--accent-primary), transparent 70%);
  opacity: 0;
  transition: opacity 0.3s;
}

.theme-toggle:hover {
  border-color: var(--accent-primary);
  box-shadow: var(--glow);
  transform: scale(1.05);
}

.theme-toggle:hover::before {
  opacity: 0.15;
}

.theme-toggle:active {
  transform: scale(0.95);
}

/* ── Theme Dropdown ── */
.theme-dropdown {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  background: var(--bg-card-solid);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 8px;
  min-width: 140px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-deep), var(--glow);
}

.theme-dropdown::before {
  content: '';
  position: absolute;
  top: -6px;
  right: 14px;
  width: 12px;
  height: 12px;
  background: var(--bg-card-solid);
  border-left: 1px solid var(--border-color);
  border-top: 1px solid var(--border-color);
  transform: rotate(45deg);
}

.theme-dropdown.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ── Theme Options ── */
.theme-option {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.theme-option::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-primary), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.theme-option:hover {
  border-color: var(--border-color);
  background: var(--bg-elevated);
  color: var(--text-main);
  transform: translateX(2px);
}

.theme-option:hover::before {
  opacity: 0.05;
}

.theme-option.active {
  border-color: var(--accent-primary);
  background: var(--bg-elevated);
  color: var(--accent-primary);
}

.theme-option.active::after {
  content: '\f00c';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  right: 12px;
  font-size: 0.7rem;
  color: var(--accent-primary);
}

/* ── Theme Color Preview ── */
.theme-color {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.2);
  flex-shrink: 0;
  box-shadow: 0 0 8px currentColor;
  position: relative;
  z-index: 1;
}

.theme-label {
  flex: 1;
  text-align: left;
  position: relative;
  z-index: 1;
}

/* ══════════════════════════════════════════════
   MOBILE RESPONSIVE
══════════════════════════════════════════════ */

@media (max-width: 768px) {
  
  /* Theme switcher in mobile menu */
  .nav-links.open .theme-switcher-container {
    width: 100%;
    padding: 8px 0;
    border-top: 1px solid var(--border-color);
    margin-top: 8px;
  }

  .nav-links.open .theme-switcher {
    justify-content: center;
  }

  .nav-links.open .theme-toggle {
    width: 100%;
    height: 44px;
    border-radius: var(--radius-sm);
  }

  .nav-links.open .theme-toggle::after {
    content: 'Change Theme';
    margin-left: 8px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }

  .nav-links.open .theme-dropdown {
    position: static;
    margin-top: 8px;
    transform: none;
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
  }

  .nav-links.open .theme-dropdown::before {
    display: none;
  }

  .nav-links.open .theme-dropdown.active {
    opacity: 1;
    max-height: 300px;
    padding: 8px;
  }
}

/* ══════════════════════════════════════════════
   THEME-SPECIFIC ADJUSTMENTS
══════════════════════════════════════════════ */

/* Ensure theme toggle icon color matches theme */
[data-theme="red"] .theme-toggle {
  color: #ff0055;
}

[data-theme="purple"] .theme-toggle {
  color: #a78bfa;
}

[data-theme="blue"] .theme-toggle {
  color: #00d9ff;
}

/* Smooth color transitions */
.theme-toggle,
.theme-dropdown,
.theme-option,
.theme-color {
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}