:root {
    /* Error Theme */
    --error-main: #dc2626;
    --error-bg: #fef2f2;
    --error-text: #7f1d1d;
    
    /* Success Theme */
    --success-main: #16a34a;
    --success-bg: #f0fdf4;
    --success-text: #14532d;
    
    /* Warning Theme */
    --warning-main: #d97706;
    --warning-bg: #fffbeb;
    --warning-text: #78350f;

    /* Info Theme */
    --info-main: #2563eb;
    --info-bg: #eff6ff;
    --info-text: #1e3a8a;

    --gray-50: #f9fafb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-900: #111827;
    --shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-toast: 0 8px 24px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.08);
}

/* --- Modal Backdrop & Positioning --- */
.notification-backdrop {
    position: fixed;
    inset: 0;
    display: none;
    z-index: 1000;
    padding: 1rem;
    pointer-events: none;
}

.notification-backdrop.active { display: flex; }

/* Positioning Classes */
.pos-center       { align-items: center;     justify-content: center;     background-color: rgba(0,0,0,0.4); pointer-events: auto; }
.pos-top-right    { align-items: flex-start; justify-content: flex-end;  }
.pos-bottom-right { align-items: flex-end;   justify-content: flex-end;  }
.pos-top-left     { align-items: flex-start; justify-content: flex-start; }
.pos-bottom-left  { align-items: flex-end;   justify-content: flex-start; }

/* Toast mode: backdrop stays invisible & non-blocking; only the container is interactive */
[data-mode="toast"]                  { pointer-events: none; background-color: transparent; }
[data-mode="toast"] .notif-container { pointer-events: auto; }

/* --- Modal Container (shared base) --- */
.notif-container {
    background-color: white;
    border-radius: 12px;
    overflow: hidden;
    pointer-events: auto;
    position: relative; /* anchors the timer bar */
    opacity: 0;
    cursor: default;
}

/* Draggable state styling */
.notif-container.ui-draggable-dragging {
    transition: none;
    opacity: 0.9;
}

/* --- Modal mode container --- */
[data-mode="modal"] .notif-container {
    width: 95%;
    max-width: 450px;
    box-shadow: var(--shadow);
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

[data-mode="modal"].active .notif-container {
    opacity: 1;
    transform: translateY(0);
}

/* --- Toast mode container --- */
[data-mode="toast"] .notif-container {
    width: 340px;
    max-width: calc(100vw - 2rem);
    box-shadow: var(--shadow-toast);
    border-radius: 10px;
    transform: translateX(20px);
    transition: opacity 0.25s ease, transform 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

[data-mode="toast"].active .notif-container {
    opacity: 1;
    transform: translateX(0);
}

/* Left-side toasts slide in from the left */
[data-mode="toast"].pos-top-left .notif-container,
[data-mode="toast"].pos-bottom-left .notif-container {
    transform: translateX(-20px);
}

[data-mode="toast"].pos-top-left.active .notif-container,
[data-mode="toast"].pos-bottom-left.active .notif-container {
    transform: translateX(0);
}

/* Toast: compact body padding and no draggable cursor */
[data-mode="toast"] .notif-header { cursor: default; }
[data-mode="toast"] .notif-body   { padding: 0.875rem 1.25rem; }
[data-mode="toast"] .notif-message { margin-bottom: 0; }

/* --- Theme Styling --- */
.notif-header { 
    padding: 1rem 1.25rem; 
    display: flex; 
    align-items: center; 
    justify-content: space-between; 
    border-bottom: 1px solid rgba(0,0,0,0.05);
    cursor: move; /* Indicate draggability */
}
.header-content { display: flex; align-items: center; gap: 0.75rem; pointer-events: none; }
.notif-title { font-weight: 700; font-size: 1rem; }

.icon-circle { width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: white; font-weight: bold; }

/* Types */
.type-error .icon-circle { background-color: var(--error-main); }
.type-error .notif-header { background-color: var(--error-bg); }
.type-error .notif-title { color: var(--error-text); }

.type-success .icon-circle { background-color: var(--success-main); }
.type-success .notif-header { background-color: var(--success-bg); }
.type-success .notif-title { color: var(--success-text); }

.type-warning .icon-circle { background-color: var(--warning-main); }
.type-warning .notif-header { background-color: var(--warning-bg); }
.type-warning .notif-title { color: var(--warning-text); }

.type-info .icon-circle { background-color: var(--info-main); }
.type-info .notif-header { background-color: var(--info-bg); }
.type-info .notif-title { color: var(--info-text); }

/* Body & List */
.notif-body { padding: 1.25rem; }
.notif-message { color: var(--gray-600); font-size: 0.9rem; margin-bottom: 1rem; line-height: 1.4; }

.notif-list { display: flex; flex-direction: column; gap: 0.5rem; max-height: 200px; overflow-y: auto; }
.list-item { 
    padding: 0.6rem; 
    border-radius: 6px; 
    font-size: 0.85rem; 
    display: flex; 
    gap: 0.5rem;
    border-left: 3px solid transparent;
}

.type-error .list-item   { background: var(--error-bg);   border-left-color: var(--error-main);   color: var(--error-text);   }
.type-success .list-item { background: var(--success-bg); border-left-color: var(--success-main); color: var(--success-text); }
.type-warning .list-item { background: var(--warning-bg); border-left-color: var(--warning-main); color: var(--warning-text); }
.type-info .list-item    { background: var(--info-bg);    border-left-color: var(--info-main);    color: var(--info-text);    }

.field-label { font-weight: 700; }

.notif-footer { padding: 1rem; background: var(--gray-50); display: flex; gap: 0.5rem; }
.btn-notif { 
    flex: 1; 
    padding: 0.75rem; 
    border-radius: 6px; 
    border: 1px solid var(--gray-300); 
    background: white; 
    font-weight: 600; 
    cursor: pointer;
    font-size: 0.85rem;
    transition: background 0.2s;
}
.btn-notif:hover { background: var(--gray-50); }
.btn-notif.primary { background: var(--gray-900); color: white; border: none; }
.btn-notif.primary:hover { background: #000; }

.close-x { background: none; border: none; cursor: pointer; color: var(--gray-400); font-size: 1.2rem; padding: 4px; pointer-events: auto; }

/* Auto-dismiss timer bar */
.timer-bar {
    height: 3px;
    background: rgba(0,0,0,0.1);
    width: 0%;
    position: absolute;
    bottom: 0;
    left: 0;
}

/* Responsive Adjustments */
@media (max-width: 480px) {
    /* Modal mode: full-width bottom sheet */
    [data-mode="modal"] .notif-container {
        max-width: 100%;
        border-radius: 12px 12px 0 0;
        position: fixed !important;
        bottom: 0 !important;
        left: 0 !important;
        top: auto !important;
        right: 0 !important;
        width: 100% !important;
        transform: translateY(100%);
    }
    [data-mode="modal"].active .notif-container { transform: translateY(0); }
    [data-mode="modal"] { padding: 0; }
    .pos-center { align-items: flex-end; }

    /* Toast mode: full-width strip pinned to top or bottom edge */
    [data-mode="toast"] .notif-container {
        width: calc(100vw - 2rem);
        max-width: calc(100vw - 2rem);
        transform: translateY(-12px);
    }
    [data-mode="toast"].active .notif-container { transform: translateY(0); }

    [data-mode="toast"].pos-bottom-right,
    [data-mode="toast"].pos-bottom-left { align-items: flex-end; justify-content: center; }
    [data-mode="toast"].pos-top-right,
    [data-mode="toast"].pos-top-left   { align-items: flex-start; justify-content: center; }

    [data-mode="toast"].pos-bottom-right .notif-container,
    [data-mode="toast"].pos-bottom-left  .notif-container { transform: translateY(12px); }
    [data-mode="toast"].pos-bottom-right.active .notif-container,
    [data-mode="toast"].pos-bottom-left.active  .notif-container { transform: translateY(0); }
}