/* Modal component */

.c-modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: auto;
}

.c-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity var(--duration-medium) var(--ease-out);
}

.c-modal.is-open .c-modal__backdrop { opacity: 1; }

.c-modal__panel {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--color-bg-elevated);
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  max-height: calc(100vh - var(--space-7));
  width: calc(100vw - var(--space-5));
  max-width: 640px;
  overflow: hidden;
  transform: translateY(8px) scale(0.98);
  opacity: 0;
  transition:
    transform var(--duration-medium) var(--ease-out),
    opacity var(--duration-medium) var(--ease-out);
}
.c-modal.is-open .c-modal__panel {
  transform: translateY(0) scale(1);
  opacity: 1;
}

/* Sizes */
.c-modal--sm   { max-width: 480px;  }
.c-modal--md   { max-width: 640px;  }
.c-modal--lg   { max-width: 840px;  }
.c-modal--xl   { max-width: 1024px; }
.c-modal--full { max-width: 100vw; max-height: 100vh; width: 100vw; height: 100vh; border-radius: 0; }

/* Header */
.c-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  gap: var(--space-3);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}
.c-modal__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  color: var(--color-text);
  letter-spacing: var(--tracking-display);
}
.c-modal__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  font-size: var(--text-2xl);
  line-height: 1;
  cursor: pointer;
  transition:
    background-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out);
}
.c-modal__close:hover {
  background: var(--color-bg-overlay);
  color: var(--color-text);
}

/* Body */
.c-modal__body {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-5);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
}

/* Loading overlay (inside panel) */
.c-modal__loading {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2;
  pointer-events: auto;
}
.c-modal__panel.is-loading .c-modal__loading { display: flex; }
.c-modal__spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-border-strong);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: c-modal-spin 0.9s linear infinite;
}
@keyframes c-modal-spin {
  to { transform: rotate(360deg); }
}

/* Footer */
.c-modal__footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
  background: var(--color-bg-raised);
}

/* Body lock when modal open */
body.c-modal-open {
  overflow: hidden;
}

/* Mobile: full-screen */
@media (max-width: 767px) {
  .c-modal__panel {
    width: 100vw;
    height: 100vh;
    max-width: 100vw;
    max-height: 100vh;
    border-radius: 0;
    border: none;
  }
  .c-modal__header {
    padding-top: max(var(--space-4), env(safe-area-inset-top));
  }
  .c-modal__footer {
    padding-bottom: max(var(--space-4), env(safe-area-inset-bottom));
  }
}