/* ================================================
   AD-SENSE — Components
   Buttons, cards, forms, generic UI elements
   ================================================ */

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  border: none;
}

.btn-primary {
  background: var(--gradient-main);
  color: white;
  box-shadow: 0 4px 16px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 6px 24px rgba(139, 92, 246, 0.45);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
}

.btn-outline:hover {
  border-color: var(--accent-purple);
  background: rgba(139, 92, 246, 0.08);
}

.btn-block {
  width: 100%;
}

.btn-small {
  padding: 8px 16px;
  font-size: 14px;
}

.profile-cta-btn {
  width: 100%;
  padding: 11px;
  margin-top: 12px;
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
  border: none;
  border-radius: var(--radius-sm);
  color: white;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.profile-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-purple);
}

.profile-danger-btn {
  width: 100%;
  padding: 11px;
  margin-top: 12px;
  background: rgba(255, 107, 107, 0.15);
  border: 1px solid rgba(255, 107, 107, 0.3);
  border-radius: var(--radius-sm);
  color: #ff6b6b;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.profile-danger-btn:hover {
  background: rgba(255, 107, 107, 0.25);
  border-color: rgba(255, 107, 107, 0.5);
}

/* ─── Cards ─── */
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-main);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

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

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.stat-card {
  text-align: center;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
}

.stat-card .number {
  font-size: 1.75rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-card .desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ─── Ad Banner ─── */
.ad-banner {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 16px 24px;
  margin: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: all var(--transition-base);
}

.ad-banner .ad-label {
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  opacity: 0.6;
  margin-right: 12px;
  flex-shrink: 0;
}

.ad-banner .ad-content {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 12px;
}

.ad-banner .ad-placeholder-img {
  width: 80px;
  height: 50px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(6, 182, 212, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

body.ads-hidden .ad-banner:not(.ad-game-related) {
  display: none;
}

/* ─── Forms ─── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 500;
}

.form-group input {
  padding: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
  transition: all var(--transition-fast);
}

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

.form-group input:focus {
  outline: none;
  border-color: var(--accent-purple);
  background: var(--bg-card-hover);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.form-error {
  color: #ff6b6b;
  font-size: 13px;
  margin-top: -8px;
  display: none;
}

.form-error.show {
  display: block;
}

/* ─── Toggle Switch ─── */
.ad-toggle-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.ad-toggle-wrapper label {
  cursor: pointer;
  user-select: none;
}

.toggle-switch {
  position: relative;
  width: 36px;
  height: 20px;
  appearance: none;
  -webkit-appearance: none;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  cursor: pointer;
  transition: background var(--transition-fast);
  border: none;
  outline: none;
}

.toggle-switch::before {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: var(--text-secondary);
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.toggle-switch:checked {
  background: var(--accent-purple);
}

.toggle-switch:checked::before {
  left: 18px;
  background: white;
}