/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: var(--transition-bounce);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), rgba(255,255,255,0));
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.btn:hover::before {
  opacity: 1;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: white;
  box-shadow: 0 4px 15px var(--color-primary-alpha);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px hsla(260, 80%, 55%, 0.5);
}

.btn-primary:active {
  transform: translateY(1px);
}

.btn-outline {
  background: transparent;
  color: var(--color-text-title);
  border: 1px solid var(--color-bg-surface-border);
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  border-color: var(--color-primary-light);
  background: rgba(255, 255, 255, 0.05);
  transform: translateY(-2px);
}

/* Glass Panels / Cards */
.glass-panel {
  background: var(--color-bg-surface-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-bg-surface-border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.glass-panel::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
}

.card {
  padding: var(--space-8);
  transition: var(--transition-bounce);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-5px);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4), var(--shadow-glow);
}

.card-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--color-bg-surface-elevated), var(--color-bg-surface));
  border: 1px solid var(--color-bg-surface-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-6);
  color: var(--color-primary-light);
  font-size: 24px;
  box-shadow: inset 0 1px 1px rgba(255,255,255,0.1);
  transition: var(--transition-normal);
}

.card:hover .card-icon {
  transform: scale(1.1) rotate(5deg);
  color: white;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  box-shadow: 0 0 20px var(--color-primary-alpha);
}

.card-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-3);
}

.card-text {
  color: var(--color-text-body);
  flex-grow: 1;
}

/* Form Controls */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-title);
}

.form-control {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-surface-elevated);
  border: 1px solid var(--color-bg-surface-border);
  border-radius: var(--radius-md);
  color: var(--color-text-title);
  font-size: var(--font-size-base);
  transition: var(--transition-normal);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-alpha);
  background: var(--color-bg-surface);
}

.form-control::placeholder {
  color: var(--color-text-muted);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-primary {
  background: var(--color-primary-alpha);
  color: var(--color-primary-light);
  border: 1px solid rgba(138, 43, 226, 0.3);
}

.badge-accent {
  background: hsla(45, 100%, 55%, 0.1);
  color: var(--color-accent);
  border: 1px solid hsla(45, 100%, 55%, 0.3);
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-4) 0;
  transition: var(--transition-normal);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: var(--color-bg-surface-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: var(--color-bg-surface-border);
  padding: var(--space-3) 0;
  box-shadow: var(--shadow-md);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-family-display);
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-text-title);
  letter-spacing: -0.03em;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-link {
  color: var(--color-text-body);
  font-weight: 500;
  font-size: var(--font-size-sm);
  transition: var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--color-text-title);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition-normal);
  border-radius: 2px;
}

.nav-link:hover::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  font-size: 24px;
  color: white;
}

/* Grid Layouts */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
  align-items: center;
}