/* ========================================
   UKV Radio — Components
   Buttons, Cards, Badges, Forms
   ======================================== */

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.7em 1.6em;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: transparent;
  color: var(--neon-cyan);
  border: 1px solid var(--neon-cyan);
  box-shadow: var(--glow-cyan-sm);
}

.btn-primary:hover {
  background: rgba(0, 240, 255, 0.1);
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--neon-magenta);
  border: 1px solid var(--neon-magenta);
}

.btn-secondary:hover {
  background: rgba(255, 0, 170, 0.1);
  box-shadow: var(--glow-magenta);
  transform: translateY(-2px);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-lg {
  padding: 1em 2.2em;
  font-size: var(--text-base);
}

.btn-sm {
  padding: 0.4em 1em;
  font-size: var(--text-xs);
}

.btn-icon {
  width: 48px;
  height: 48px;
  padding: 0;
  border-radius: var(--radius-full);
}

/* ---- Cards ---- */
.card {
  background: var(--bg-card);
  border: var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(0, 240, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 30px rgba(0, 240, 255, 0.1);
}

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

.card-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover .card-icon {
  transform: scale(1.1);
}

.card-icon.cyan {
  background: rgba(0, 240, 255, 0.1);
  color: var(--neon-cyan);
  border: 1px solid rgba(0, 240, 255, 0.2);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.1);
}

.card-icon.magenta {
  background: rgba(255, 0, 170, 0.1);
  color: var(--neon-magenta);
  border: 1px solid rgba(255, 0, 170, 0.2);
  box-shadow: 0 0 15px rgba(255, 0, 170, 0.1);
}

.card-icon.purple {
  background: rgba(176, 38, 255, 0.1);
  color: var(--neon-purple);
  border: 1px solid rgba(176, 38, 255, 0.2);
  box-shadow: 0 0 15px rgba(176, 38, 255, 0.1);
}

.card h3, .card h4 {
  margin-bottom: var(--space-sm);
  color: var(--text-bright);
}

.card p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ---- Badges ---- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: var(--radius-full);
  transition: all 0.3s ease;
}

.badge:hover {
  transform: translateY(-2px);
}

.badge-live {
  background: rgba(255, 0, 170, 0.2);
  color: var(--neon-magenta);
  border: 1px solid rgba(255, 0, 170, 0.4);
  box-shadow: 0 0 15px rgba(255, 0, 170, 0.2);
}

.badge-live .dot {
  width: 8px;
  height: 8px;
  background: var(--neon-magenta);
  border-radius: 50%;
  animation: pulse-dot 1.5s ease-in-out infinite;
  box-shadow: 0 0 10px var(--neon-magenta);
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.badge-cyan {
  background: rgba(0, 240, 255, 0.15);
  color: var(--neon-cyan);
  border: 1px solid rgba(0, 240, 255, 0.3);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.2);
}

.badge-purple {
  background: rgba(176, 38, 255, 0.15);
  color: var(--neon-purple);
  border: 1px solid rgba(176, 38, 255, 0.3);
  box-shadow: 0 0 15px rgba(176, 38, 255, 0.2);
}

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

.form-label {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.8em 1em;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--text-base);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--neon-cyan);
  box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.1), var(--glow-cyan-sm);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

/* ---- Divider ---- */
.divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.06);
  margin: var(--space-xl) 0;
}

/* ---- Tag ---- */
.tag {
  display: inline-block;
  padding: 2px 8px;
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--neon-cyan);
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: var(--radius-sm);
}

/* ---- Loading Spinner ---- */
.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid rgba(0, 240, 255, 0.2);
  border-top-color: var(--neon-cyan);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ---- Empty State ---- */
.empty-state {
  text-align: center;
  padding: var(--space-4xl) var(--space-xl);
  color: var(--text-muted);
}

.empty-state .icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  opacity: 0.3;
}