/*
 * BComm.net — Toast Notification Styles
 * ═══════════════════════════════════════════════════════════════════
 * PHASE 3 — ISOLATED MODULE
 * Depends on: css/tokens.css, css/base.css
 * Scoped to #toast-container and .toast-* namespace only
 * ═══════════════════════════════════════════════════════════════════
 */


/* ── Toast Container (fixed viewport layer) ──────────────────────────────── */

#toast-container {
  position: fixed;
  top: calc(var(--navbar-height) + var(--space-4));
  inset-inline-end: var(--space-4);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  pointer-events: none;
  max-width: 400px;
  width: calc(100vw - var(--space-8));
}


/* ── Toast Base ──────────────────────────────────────────────────────────── */

.toast {
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-rows: auto auto;
  align-items: start;
  gap: var(--space-2) var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-card);
  background: var(--color-bg-glass);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border: 1px solid var(--color-border-subtle);
  box-shadow:
    var(--shadow-xl),
    0 0 0 0.5px rgba(255, 255, 255, 0.05) inset;
  pointer-events: all;
  position: relative;
  overflow: hidden;
  cursor: default;

  /* Entry: slide from inline-end (right in LTR, left in RTL) */
  transform: translateX(120%);
  opacity: 0;
  transition:
    transform var(--transition-bounce),
    opacity   var(--transition-smooth);
  will-change: transform, opacity;
}

html[dir="rtl"] .toast {
  transform: translateX(-120%);
}

/* Visible state */
.toast.toast--visible {
  transform: translateX(0);
  opacity: 1;
}

/* Exit state */
.toast.toast--leaving {
  transform: translateX(120%);
  opacity: 0;
  transition:
    transform 0.28s var(--ease-in),
    opacity   0.28s var(--ease-in);
}

html[dir="rtl"] .toast.toast--leaving {
  transform: translateX(-120%);
}


/* ── Toast Variants ──────────────────────────────────────────────────────── */

.toast--success {
  border-color: rgba(52, 211, 153, 0.28);
}

.toast--error {
  border-color: rgba(248, 113, 113, 0.28);
}

.toast--warning {
  border-color: rgba(251, 191, 36, 0.28);
}


/* ── Icon Cell ───────────────────────────────────────────────────────────── */

.toast-icon {
  grid-row: 1;
  grid-column: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.toast-icon svg {
  width: 20px;
  height: 20px;
}

.toast--success .toast-icon {
  background: rgba(52, 211, 153, 0.12);
  color: var(--color-success);
}

.toast--error .toast-icon {
  background: rgba(248, 113, 113, 0.12);
  color: var(--color-error);
}

.toast--warning .toast-icon {
  background: rgba(251, 191, 36, 0.12);
  color: var(--color-warning);
}


/* ── Content Cell ────────────────────────────────────────────────────────── */

.toast-content {
  grid-row: 1;
  grid-column: 2;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.toast-title {
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-text-primary);
  line-height: var(--lh-snug);
}

.toast-message {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  line-height: var(--lh-relaxed);
}


/* ── Close Button ────────────────────────────────────────────────────────── */

.toast-close {
  grid-row: 1;
  grid-column: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--transition-fast), color var(--transition-fast);
  margin-top: 2px;
}

.toast-close:hover {
  background: var(--color-bg-card);
  color: var(--color-text-primary);
}

.toast-close svg {
  width: 12px;
  height: 12px;
  pointer-events: none;
}


/* ── Progress Bar ────────────────────────────────────────────────────────── */

.toast-progress {
  position: absolute;
  bottom: 0;
  inset-inline-start: 0;
  height: 2px;
  border-radius: var(--radius-pill);
  transform-origin: inline-start;
  animation: toastProgress linear forwards;
}

.toast--success .toast-progress { background: var(--color-success); }
.toast--error   .toast-progress { background: var(--color-error);   }
.toast--warning .toast-progress { background: var(--color-warning);  }

@keyframes toastProgress {
  from { transform: scaleX(1); }
  to   { transform: scaleX(0); }
}


/* ── Responsive ──────────────────────────────────────────────────────────── */

@media (max-width: 480px) {
  #toast-container {
    inset-inline-end: 0;
    inset-inline-start: 0;
    max-width: 100%;
    width: 100%;
    padding-inline: var(--space-3);
  }

  .toast {
    border-radius: var(--radius-md);
  }
}