/* taniecweb.pl — Toast notifications */

.toast-stack {
  position: fixed;
  top: var(--s-5);
  right: var(--s-5);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  max-width: calc(100vw - var(--s-7));
  width: 360px;
  pointer-events: none;
}

.toast {
  background: var(--n-0);
  color: var(--n-700);
  padding: var(--s-4) var(--s-5);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--brand-primary);
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: start;
  gap: var(--s-3);
  pointer-events: auto;
  opacity: 0;
  transform: translateX(20px);
  transition:
    opacity var(--dur-normal) var(--ease-out),
    transform var(--dur-normal) var(--ease-out);
}

.toast-visible {
  opacity: 1;
  transform: translateX(0);
}

.toast-title {
  display: block;
  font-weight: 600;
  margin-bottom: var(--s-1);
  color: var(--n-900);
}

.toast-message {
  font-size: var(--t-sm);
  color: var(--n-500);
  display: block;
}

.toast-close {
  background: transparent;
  border: 0;
  color: var(--n-400);
  cursor: pointer;
  font-size: 1.5rem;
  line-height: 1;
  padding: 0;
  width: 24px;
  height: 24px;
  border-radius: var(--r-full);
  display: flex;
  align-items: center;
  justify-content: center;
  grid-row: 1 / -1;
  grid-column: 2;
  align-self: start;
}

.toast-close:hover {
  background: var(--n-100);
  color: var(--n-700);
}

.toast-success {
  border-left-color: var(--success);
}
.toast-warning {
  border-left-color: var(--warning);
}
.toast-error {
  border-left-color: var(--error);
}
.toast-info {
  border-left-color: var(--info);
}
.toast-achievement {
  border-left-color: var(--brand-secondary);
  background: linear-gradient(135deg, var(--n-0) 0%, var(--n-50) 100%);
}

.toast-achievement .toast-title {
  font-family: var(--font-display);
  color: var(--brand-primary);
}

@media (max-width: 600px) {
  .toast-stack {
    top: auto;
    bottom: var(--s-4);
    right: var(--s-3);
    left: var(--s-3);
    width: auto;
  }
}

/* === Confetti === */
.confetti-stage {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9998;
  overflow: hidden;
}

.confetti-piece {
  position: absolute;
  width: 10px;
  height: 14px;
  border-radius: 2px;
  will-change: transform, opacity;
}

@media (prefers-reduced-motion: reduce) {
  .confetti-stage {
    display: none;
  }
}

/* === Streak widget in header === */
.streak-widget {
  font-size: var(--t-sm);
  color: var(--brand-primary);
  font-weight: 600;
  padding: var(--s-2) var(--s-3);
  background: var(--n-50);
  border-radius: var(--r-full);
  border: 1px solid var(--n-100);
}

/* === Favorite button === */
[data-favorite-toggle] {
  background: transparent;
  border: 1px solid var(--n-200);
  color: var(--n-400);
  padding: var(--s-2) var(--s-3);
  border-radius: var(--r-full);
  cursor: pointer;
  font-size: var(--t-sm);
  transition: all var(--dur-fast);
}

[data-favorite-toggle]:hover {
  border-color: var(--accent);
  color: var(--accent);
}

[data-favorite-toggle].is-favorite {
  background: var(--accent);
  color: var(--n-0);
  border-color: var(--accent);
}

/* === Mark as completed button === */
[data-complete-lesson] {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: var(--s-3) var(--s-5);
  background: var(--success);
  color: #fff;
  border: 0;
  border-radius: var(--r-md);
  cursor: pointer;
  font-weight: 500;
  margin-top: var(--s-4);
  transition: background var(--dur-fast);
}

[data-complete-lesson]:hover:not(:disabled) {
  background: #356c41;
}

[data-complete-lesson]:disabled {
  background: var(--n-300);
  cursor: default;
  opacity: 0.7;
}