/* Navbar */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-header-bg);
  backdrop-filter: blur(12px);
  padding: var(--space-16) 0;
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: var(--space-32);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-12);
}

.logo img {
  height: 48px;
  width: auto;
  transition: transform var(--transition-fast);
}

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

.nav-list {
  display: flex;
  gap: var(--space-32);
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: var(--space-16); /* Increased gap from 12 to 16 for better separation */
}

#theme-toggle, #language-switcher {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  cursor: pointer;
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--space-12);
  height: 40px;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  min-width: 40px;
  font-weight: 600;
  font-size: 0.9rem;
}

#theme-toggle:hover, #language-switcher:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.nav-toggle {
  display: block;
  width: 32px;
  height: 32px;
  position: relative;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }
}

@media (max-width: 767px) {
  .nav-list {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--color-bg);
    flex-direction: column;
    padding: var(--space-24);
    display: none;
    text-align: center;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-list[data-visible="true"] {
    display: flex;
  }
}

/* Buttons */
.button {
  display: inline-block;
  padding: var(--space-16) var(--space-32);
  border-radius: var(--radius-lg);
  font-weight: 600;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.button-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: white;
}

.button-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px -5px rgba(138, 0, 255, 0.4);
}

.button-secondary {
  border-color: var(--color-border);
  color: var(--color-text);
}

.button-secondary:hover {
  border-color: var(--color-primary);
  background: rgba(255, 255, 255, 0.05);
}

/* Cards */
.project-card, .skill-category, .timeline-item, .education-item, .certification-item {
  background: var(--color-bg-elevated);
  padding: var(--space-32);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.project-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-8px);
  box-shadow: 0 20px 30px -10px rgba(0, 0, 0, 0.5);
}

.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-24);
  margin-top: var(--space-32);
}

@media (min-width: 768px) {
  .projects-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Pills */
.skill-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
  margin-top: var(--space-16);
}

.skill-pills span {
  background: rgba(255, 255, 255, 0.05);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}