/* ========================================
   Reusable Components
   Modern button, card, badge, tag, form-input, section-header utilities
   Uses tokens from variables.css
   ======================================== */

/* ---------- Modern primary button utility ---------- */
.ck-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--ck-gradient-primary);
  color: #ffffff;
  border: none;
  border-radius: var(--ck-radius);
  padding: 0.6rem 1.25rem;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: var(--ck-transition);
  box-shadow: var(--ck-shadow-brand);
  cursor: pointer;
}

.ck-btn-primary:hover,
.ck-btn-primary:focus {
  background: var(--ck-gradient-primary-hover);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(98, 83, 232, 0.35);
}

.ck-btn-primary:disabled,
.ck-btn-primary.disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* ---------- Ghost / secondary button ---------- */
.ck-btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--ck-color-primary);
  border: 1px solid var(--ck-color-primary);
  border-radius: var(--ck-radius);
  padding: 0.55rem 1.15rem;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: var(--ck-transition);
  cursor: pointer;
}

.ck-btn-ghost:hover {
  background: var(--ck-color-primary-bg);
  color: var(--ck-color-primary-hover);
  border-color: var(--ck-color-primary-hover);
}

/* ---------- Card ---------- */
.ck-card {
  background: var(--ck-color-bg-card);
  border: 1px solid var(--ck-color-border);
  border-radius: var(--ck-radius-lg);
  padding: var(--ck-space-6);
  box-shadow: var(--ck-shadow-xs);
  transition: var(--ck-transition);
}

.ck-card.is-interactive:hover {
  transform: translateY(-4px);
  border-color: var(--ck-color-primary-soft);
  box-shadow: var(--ck-shadow-lg);
}

/* ---------- Badge / pill ---------- */
.ck-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3rem 0.7rem;
  border-radius: var(--ck-radius-pill);
  background: var(--ck-color-bg-muted);
  color: var(--ck-color-text-label);
  line-height: 1.3;
}

.ck-badge--primary {
  background: var(--ck-color-primary-bg);
  color: var(--ck-color-primary);
}

.ck-badge--success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--ck-color-success-2);
}

.ck-badge--gradient {
  background: var(--ck-gradient-primary);
  color: #ffffff;
}

/* ---------- Tag (chip link) ---------- */
.ck-tag {
  display: inline-block;
  background: var(--ck-color-bg-muted);
  color: var(--ck-color-text-label);
  padding: 0.35rem 0.8rem;
  border-radius: var(--ck-radius-pill);
  font-size: 0.8rem;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid transparent;
  transition: var(--ck-transition);
}

.ck-tag:hover {
  background: var(--ck-color-primary-bg);
  color: var(--ck-color-primary);
  border-color: var(--ck-color-primary-soft);
  transform: translateY(-1px);
}

/* ---------- Form input ---------- */
.ck-input,
.ck-form .form-control,
.ck-form .form-select {
  width: 100%;
  border: 1px solid var(--ck-color-border);
  border-radius: var(--ck-radius);
  background: var(--ck-color-bg-card);
  padding: 0.65rem 0.9rem;
  font-size: 0.95rem;
  color: var(--ck-color-text);
  box-shadow: none;
  transition: var(--ck-transition);
}

.ck-input:focus,
.ck-form .form-control:focus,
.ck-form .form-select:focus {
  border-color: var(--ck-color-primary-2);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
  outline: none;
}

.ck-input::placeholder,
.ck-form .form-control::placeholder {
  color: var(--ck-color-text-subtle);
}

/* ---------- Section header (icon + title + subtitle) ---------- */
.ck-section-header {
  margin: 0 0 1.5rem 0;
}

.ck-section-header__title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.75rem;
  font-weight: var(--ck-heading-weight);
  color: var(--ck-color-text);
  letter-spacing: var(--ck-heading-tracking);
  margin: 0 0 0.5rem 0;
  line-height: 1.2;
}

.ck-section-header__title i {
  color: var(--ck-color-primary);
  font-size: 1.5rem;
}

.ck-section-header__subtitle {
  font-size: 1rem;
  color: var(--ck-color-text-muted);
  margin: 0;
}

/* ---------- Empty state ---------- */
.ck-empty {
  background: var(--ck-color-bg-card);
  border: 1px dashed var(--ck-color-border);
  border-radius: var(--ck-radius-md);
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--ck-color-text-muted);
}

.ck-empty a {
  color: var(--ck-color-primary);
  font-weight: 600;
}

/* ---------- Divider ---------- */
.ck-divider {
  height: 1px;
  background: var(--ck-color-border-soft);
  border: none;
  margin: 1.5rem 0;
}

/* ---------- Stat number ---------- */
.ck-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  text-align: center;
}

.ck-stat__value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--ck-color-primary);
  line-height: 1;
}

.ck-stat__label {
  font-size: 0.75rem;
  color: var(--ck-color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}