/**
 * HeuriSight Toast Notification System
 * Based on: mockups/apple-redesign/09-ui-primitives.html
 * 
 * Usage:
 *   <div class="hs-toast hs-toast--success">
 *     <div class="hs-toast__icon">...</div>
 *     <div class="hs-toast__content">
 *       <div class="hs-toast__message">Success message</div>
 *     </div>
 *     <button class="hs-toast__close">...</button>
 *   </div>
 */

/* =============================================================================
   TOAST CONTAINER
   ============================================================================= */

.hs-toast-container {
    position: fixed;
    bottom: var(--space-6, 24px);
    right: var(--space-6, 24px);
    display: flex;
    flex-direction: column;
    gap: var(--space-3, 12px);
    z-index: var(--z-toast, 500);
    max-width: 400px;
}

/* Top position variant */
.hs-toast-container--top {
    top: var(--space-6, 24px);
    bottom: auto;
    flex-direction: column-reverse;
}

/* Left position variant */
.hs-toast-container--left {
    left: var(--space-6, 24px);
    right: auto;
}

/* Center position */
.hs-toast-container--center {
    left: 50%;
    right: auto;
    transform: translateX(-50%);
}

/* =============================================================================
   TOAST BASE
   ============================================================================= */

.hs-toast {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3, 12px);
    padding: var(--space-3, 12px) var(--space-4, 16px);
    background: var(--bg-secondary, #F5F5F7);
    border: 1px solid var(--border-default, rgba(0, 0, 0, 0.1));
    border-radius: var(--radius-md, 12px);
    box-shadow: var(--shadow-md);
    animation: hs-toast-in 0.3s ease-out;
}

.hs-toast.exiting {
    animation: hs-toast-out 0.2s ease-in forwards;
}

@keyframes hs-toast-in {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes hs-toast-out {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(100%);
    }
}

/* =============================================================================
   TOAST VARIANTS
   ============================================================================= */

.hs-toast--success {
    border-left: 3px solid var(--success, #34C759);
}

.hs-toast--error {
    border-left: 3px solid var(--destructive, #FF3B30);
}

.hs-toast--warning {
    border-left: 3px solid var(--warning, #FF9500);
}

.hs-toast--info {
    border-left: 3px solid var(--accent, #0071E3);
}

/* =============================================================================
   TOAST PARTS
   ============================================================================= */

.hs-toast__icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

.hs-toast--success .hs-toast__icon { color: var(--success, #34C759); }
.hs-toast--error .hs-toast__icon { color: var(--destructive, #FF3B30); }
.hs-toast--warning .hs-toast__icon { color: var(--warning, #FF9500); }
.hs-toast--info .hs-toast__icon { color: var(--accent, #0071E3); }

.hs-toast__content {
    flex: 1;
    min-width: 0;
}

.hs-toast__message {
    font-size: var(--text-sm, 13px);
    color: var(--text-primary, #1D1D1F);
    line-height: 1.4;
}

.hs-toast__action {
    font-size: var(--text-xs, 11px);
    font-weight: 600;
    color: var(--accent, #0071E3);
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    text-decoration: underline;
    margin-top: var(--space-1, 4px);
}

.hs-toast__action:hover {
    color: var(--accent-hover, #0077ED);
}

.hs-toast__close {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 4px;
    color: var(--text-tertiary, #86868B);
    cursor: pointer;
    flex-shrink: 0;
    transition: background var(--duration-fast, 150ms) var(--ease-default);
}

.hs-toast__close:hover {
    background: var(--bg-tertiary, #E8E8ED);
    color: var(--text-primary, #1D1D1F);
}

.hs-toast__close svg {
    width: 12px;
    height: 12px;
}

/* =============================================================================
   LEGACY TOAST CLASSES (from mockups)
   ============================================================================= */

.toast-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-3, 12px);
}

.toast {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3, 12px);
    padding: var(--space-3, 12px) var(--space-4, 16px);
    background: var(--bg-secondary, #F5F5F7);
    border: 1px solid var(--border-default, rgba(0, 0, 0, 0.1));
    border-radius: var(--radius-md, 12px);
    box-shadow: var(--shadow-md);
}

.toast-success { border-left: 3px solid var(--success, #34C759); }
.toast-error { border-left: 3px solid var(--destructive, #FF3B30); }
.toast-warning { border-left: 3px solid var(--warning, #FF9500); }
.toast-info { border-left: 3px solid var(--accent, #0071E3); }

.toast-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

.toast-success .toast-icon { color: var(--success, #34C759); }
.toast-error .toast-icon { color: var(--destructive, #FF3B30); }
.toast-warning .toast-icon { color: var(--warning, #FF9500); }
.toast-info .toast-icon { color: var(--accent, #0071E3); }

.toast-content {
    flex: 1;
}

.toast-message {
    font-size: var(--text-sm, 13px);
    color: var(--text-primary, #1D1D1F);
}

.toast-action {
    font-size: var(--text-xs, 11px);
    font-weight: 600;
    color: var(--accent, #0071E3);
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    text-decoration: underline;
    margin-top: var(--space-1, 4px);
}

.toast-close {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 4px;
    color: var(--text-tertiary, #86868B);
    cursor: pointer;
}

/* =============================================================================
   DARK THEME
   ============================================================================= */

[data-theme="dark"] .hs-toast,
[data-theme="dark"] .toast {
    background: var(--bg-secondary, #2C2C2E);
    border-color: var(--border-default, rgba(255, 255, 255, 0.12));
}

[data-theme="dark"] .hs-toast__close:hover {
    background: var(--bg-tertiary, #3A3A3C);
}

/* =============================================================================
   REDUCED MOTION
   ============================================================================= */

@media (prefers-reduced-motion: reduce) {
    .hs-toast {
        animation: none;
    }
    
    .hs-toast.exiting {
        animation: none;
        opacity: 0;
    }
}

/* =============================================================================
   MOBILE RESPONSIVE
   ============================================================================= */

@media (max-width: 480px) {
    .hs-toast-container {
        left: var(--space-4, 16px);
        right: var(--space-4, 16px);
        max-width: none;
    }
    
    .hs-toast-container--left,
    .hs-toast-container--center {
        left: var(--space-4, 16px);
        right: var(--space-4, 16px);
        transform: none;
    }
}