/* ========================================
   MODAL SYSTEM
   ======================================== */

/* Backdrop overlay */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: var(--z-modal-bg);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.modal-backdrop.hidden {
  display: none;
}

.modal-backdrop.visible {
  opacity: 1;
}

/* ========================================
   MODAL CONTAINER
   ======================================== */

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.95);
  z-index: var(--z-modal);
  opacity: 0;
  transition:
    opacity var(--transition-normal),
    transform var(--transition-normal);
}

.modal.hidden {
  display: none;
}

.modal.visible {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

/* ========================================
   MODAL SIZES
   ======================================== */

.modal-panel {
  width: 50vw;
  max-height: 80vh;
  background: var(--panel-bg-solid);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal.modal-sm .modal-panel {
  width: 35vw;
}

.modal.modal-lg .modal-panel {
  width: 65vw;
}

/* ========================================
   MODAL HEADER
   ======================================== */

.modal-header {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  border-bottom: var(--border-width) solid var(--color-border);
}

.modal-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text-primary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  margin: 0;
}

.modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: calc(var(--vw) * 2);
  height: calc(var(--vw) * 2);
  background: transparent;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.modal-close:hover {
  background: var(--panel-bg-hover);
}

/* X icon using CSS */
.modal-close-icon {
  position: relative;
  width: calc(var(--vw) * 1);
  height: calc(var(--vw) * 1);
}

.modal-close-icon::before,
.modal-close-icon::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: calc(var(--vw) * 0.1);
  background: var(--color-text-secondary);
  transition: background var(--transition-fast);
}

.modal-close-icon::before {
  transform: translateY(-50%) rotate(45deg);
}

.modal-close-icon::after {
  transform: translateY(-50%) rotate(-45deg);
}

.modal-close:hover .modal-close-icon::before,
.modal-close:hover .modal-close-icon::after {
  background: var(--color-text-primary);
}

/* ========================================
   MODAL BODY
   ======================================== */

.modal-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: var(--space-xl);
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.modal-body::-webkit-scrollbar {
  display: none;
}

/* ========================================
   MODAL FOOTER
   ======================================== */

.modal-footer {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-md);
  padding: var(--space-lg) var(--space-xl);
  border-top: var(--border-width) solid var(--color-border);
  background: var(--color-bg-dark);
}

/* ========================================
   MODAL BUTTONS
   ======================================== */

.modal-btn {
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.modal-btn-secondary {
  color: var(--color-text-secondary);
  background: transparent;
  border: var(--border-width) solid var(--color-border);
}

.modal-btn-secondary:hover {
  border-color: var(--color-border-hover);
  color: var(--color-text-primary);
}

.modal-btn-primary {
  color: var(--color-bg-darkest);
  background: var(--color-accent-gold);
  border: var(--border-width) solid var(--color-accent-gold);
}

.modal-btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.modal-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}