/* =========================================================
   ZYNDHUX COMPONENTS.CSS
   UI Components / Interactions / States
   ========================================================= */


/* =========================
   BUTTONS (VARIANTS)
========================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;

  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);

  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;

  transition: all var(--transition-fast);
}

/* Primary */
.btn-primary {
  background: var(--color-red-600);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-red-500);
}

.btn-primary:active {
  background: var(--color-red-700);
}

/* Secondary */
.btn-secondary {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-hover);
}

/* Ghost */
.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
}

.btn-ghost:hover {
  background: var(--color-hover);
  color: var(--color-text-primary);
}

/* Danger */
.btn-danger {
  background: var(--color-error);
  color: var(--color-white);
}

/* =========================
   CARD
========================= */
.card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-soft);

  border-radius: var(--radius-lg);
  padding: var(--space-6);

  box-shadow: var(--shadow-sm);

  transition: 
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* =========================
   BADGES
========================= */
.badge {
  display: inline-flex;
  align-items: center;

  padding: 4px 10px;
  border-radius: 999px;

  font-size: var(--text-xs);
  font-weight: 500;
}

.badge-success {
  background: rgba(22,163,74,0.2);
  color: var(--color-success);
}

.badge-warning {
  background: rgba(245,158,11,0.2);
  color: var(--color-warning);
}

.badge-error {
  background: rgba(220,38,38,0.2);
  color: var(--color-error);
}

/* =========================
   FORM STATES
========================= */
.input-error {
  border-color: var(--color-error) !important;
}

.input-valid {
  border-color: var(--color-success);
}

.input-message {
  margin-top: 4px;
  font-size: var(--text-xs);
  color: var(--color-error);
}

/* =========================
   STEPPER (MULTI-STEP)
========================= */
.stepper {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.step {
  flex: 1;
  position: relative;
  text-align: center;
}

.step::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -50%;
  width: 100%;
  height: 2px;
  background: var(--color-border);
}

.step:last-child::after {
  display: none;
}

.step-circle {
  width: 32px;
  height: 32px;
  border-radius: 50%;

  background: var(--color-bg-tertiary);
  border: 2px solid var(--color-border);

  display: flex;
  align-items: center;
  justify-content: center;

  margin: auto;
  font-size: var(--text-sm);
}

.step.active .step-circle {
  background: var(--color-red-600);
  border-color: var(--color-red-600);
}

.step.completed .step-circle {
  background: var(--color-success);
  border-color: var(--color-success);
}

/* =========================
   TOAST
========================= */
.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;

  padding: var(--space-4);
  border-radius: var(--radius-md);

  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);

  box-shadow: var(--shadow-md);

  opacity: 0;
  transform: translateY(20px);

  transition: all var(--transition-normal);
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast-success {
  border-left: 4px solid var(--color-success);
}

.toast-error {
  border-left: 4px solid var(--color-error);
}

/* =========================
   MODAL
========================= */
.modal {
  position: fixed;
  inset: 0;

  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);

  display: flex;
  align-items: center;
  justify-content: center;

  opacity: 0;
  pointer-events: none;

  transition: opacity var(--transition-normal);
}

.modal.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);

  padding: var(--space-6);
  width: 100%;
  max-width: 500px;

  box-shadow: var(--shadow-lg);

  transform: scale(0.95);
  transition: transform var(--transition-normal);
}

.modal.active .modal-content {
  transform: scale(1);
}

/* =========================
   GLOBAL LOADER
========================= */
.global-loader {
  position: fixed;
  inset: 0;

  background: rgba(0,0,0,0.85);

  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;

  z-index: 9999;
}

.global-loader.hidden {
  display: none;
}

.loader-spinner {
  width: 40px;
  height: 40px;

  border: 3px solid var(--color-border);
  border-top: 3px solid var(--color-red-600);

  border-radius: 50%;

  animation: spin 1s linear infinite;
}

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

/* =========================
   DIVIDER
========================= */
.divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-6) 0;
}

/* =========================
   TOOLTIP (BASIC)
========================= */
.tooltip {
  position: relative;
}

.tooltip:hover::after {
  content: attr(data-tooltip);
  position: absolute;

  bottom: 120%;
  left: 50%;
  transform: translateX(-50%);

  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);

  padding: 6px 10px;
  border-radius: var(--radius-sm);

  font-size: var(--text-xs);
  white-space: nowrap;
}

/* =========================
   HOVER SURFACE
========================= */
.hover-surface {
  transition: background var(--transition-fast);
}

.hover-surface:hover {
  background: var(--color-hover);
}