/* LandPPT 共享通知组件 —— toast + 对话框（confirm / prompt / alert） */

/* ── Toast ─────────────────────────────────────────────── */
.ln-toast-root {
    position: fixed;
    inset: auto;
    top: 20px;
    right: 20px;
    z-index: 1000010;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
    max-width: min(400px, calc(100vw - 40px));
    /* 容器可能以 popover 打开（进入 top layer），重置 UA popover 默认样式 */
    width: auto;
    height: auto;
    margin: 0;
    border: none;
    padding: 0;
    overflow: visible;
    background: transparent;
    color: inherit;
}

.ln-toast {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    pointer-events: auto;
    background: #ffffff;
    color: #111111;
    border: 1px solid #e5e7eb;
    border-left: 3px solid #111111;
    border-radius: 12px;
    padding: 12px 14px;
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.12);
    font-size: 0.92rem;
    line-height: 1.5;
    opacity: 0;
    transform: translateX(16px);
    transition: opacity 0.22s ease, transform 0.22s ease;
}

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

.ln-toast.ln-out {
    opacity: 0;
    transform: translateX(16px);
}

.ln-toast--success { border-left-color: #16a34a; }
.ln-toast--error   { border-left-color: #ef4444; }
.ln-toast--warning { border-left-color: #f59e0b; }
.ln-toast--info    { border-left-color: #111111; }

.ln-toast__icon {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    margin-top: 2px;
}

.ln-toast--success .ln-toast__icon { color: #16a34a; }
.ln-toast--error   .ln-toast__icon { color: #ef4444; }
.ln-toast--warning .ln-toast__icon { color: #b45309; }
.ln-toast--info    .ln-toast__icon { color: #111111; }

.ln-toast__msg {
    flex: 1;
    min-width: 0;
    white-space: pre-line;
    overflow-wrap: break-word;
}

.ln-toast__close {
    flex-shrink: 0;
    appearance: none;
    background: none;
    border: none;
    padding: 2px;
    margin: -2px -4px 0 0;
    cursor: pointer;
    color: #9ca3af;
    line-height: 1;
    border-radius: 6px;
}

.ln-toast__close:hover { color: #111111; background: #f5f5f5; }

.ln-toast__close:focus-visible,
.ln-dialog__btn:focus-visible,
.ln-dialog__input:focus-visible {
    outline: 2px solid #0f172a;
    outline-offset: 2px;
}

/* ── 对话框 ────────────────────────────────────────────── */
.ln-dialog-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000000;
    background: rgba(15, 23, 42, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    transition: opacity 0.18s ease;
}

/* 现代浏览器下 overlay 是 <dialog>（showModal 进入 top layer），重置 UA 默认样式 */
dialog.ln-dialog-overlay {
    width: 100%;
    height: 100%;
    max-width: none;
    max-height: none;
    margin: 0;
    border: none;
    outline: none;
    color: inherit;
    overflow: hidden;
}

dialog.ln-dialog-overlay::backdrop {
    background: transparent;
}

/* 被浏览器强制关闭（如安卓返回手势）后不得再遮挡页面 */
dialog.ln-dialog-overlay:not([open]) {
    display: none;
}

.ln-dialog-overlay.ln-in { opacity: 1; }

.ln-dialog {
    background: #ffffff;
    color: #111111;
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.22);
    width: 100%;
    max-width: 420px;
    padding: 22px 24px;
    transform: translateY(10px) scale(0.98);
    transition: transform 0.18s ease;
}

.ln-dialog-overlay.ln-in .ln-dialog { transform: translateY(0) scale(1); }

.ln-dialog__title {
    font-size: 1.05rem;
    font-weight: 700;
    color: #0f172a;
    margin: 0 0 8px;
    letter-spacing: -0.01em;
}

.ln-dialog__msg {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #4b5563;
    margin: 0 0 18px;
    white-space: pre-line;
    overflow-wrap: break-word;
    max-height: 45vh;
    overflow-y: auto;
}

.ln-dialog__input {
    width: 100%;
    box-sizing: border-box;
    padding: 10px 12px;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    font: inherit;
    color: #111111;
    margin: -6px 0 18px;
}

.ln-dialog__input:focus {
    outline: none;
    border-color: #0f172a;
    box-shadow: 0 0 0 3px rgba(17, 17, 17, 0.08);
}

.ln-dialog__actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.ln-dialog__btn {
    appearance: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 9px 16px;
    border-radius: 10px;
    border: 1px solid #e5e7eb;
    background: #ffffff;
    color: #111111;
    font: inherit;
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
    min-width: 76px;
}

.ln-dialog__btn:hover { background: #f5f5f5; }

.ln-dialog__btn--primary {
    background: #111111;
    border-color: #000000;
    color: #ffffff;
}

.ln-dialog__btn--primary:hover { background: #0f172a; }

.ln-dialog__btn--danger {
    background: #ef4444;
    border-color: #b91c1c;
    color: #ffffff;
}

.ln-dialog__btn--danger:hover { background: #dc2626; }

/* ── 响应式 ────────────────────────────────────────────── */
@media (max-width: 480px) {
    .ln-toast-root {
        top: 12px;
        right: 12px;
        left: 12px;
        max-width: none;
    }

    .ln-toast { transform: translateY(-12px); }
    .ln-toast.ln-in { transform: translateY(0); }
    .ln-toast.ln-out { opacity: 0; transform: translateY(-12px); }

    .ln-dialog { padding: 18px; }

    .ln-dialog__actions { flex-direction: column-reverse; }

    .ln-dialog__btn { width: 100%; }
}

/* ── 动效偏好 ──────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    .ln-toast,
    .ln-dialog-overlay,
    .ln-dialog {
        transition: none;
    }
}