/* ============================================
   对话框、下拉列表、提示
   ============================================ */

/* ---------- 对话框 ---------- */

#modal-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--spacing-md) + var(--safe-top)) calc(var(--spacing-md) + var(--safe-right)) calc(var(--spacing-md) + var(--safe-bottom)) calc(var(--spacing-md) + var(--safe-left));
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-overlay);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 520px;
    max-height: 100%;
    min-height: 0;
    display: flex;
    flex-direction: column;
    background-color: var(--color-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.modal-content.is-wide { max-width: 800px; }

.modal-header {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    min-height: 52px;
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: var(--font-size-md);
    font-weight: 600;
    overflow-wrap: anywhere;
}

.modal-body {
    flex: 1 1 auto;
    min-height: 0;
    padding: var(--spacing-md);
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
}

.modal-footer {
    flex: 0 0 auto;
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(0, 1fr);
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
    border-top: 1px solid var(--border-color);
}
.modal-footer:empty { display: none; }
.modal-footer button {
    min-height: var(--tap-size);
    white-space: normal;
    overflow-wrap: anywhere;
}

.confirm-message {
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--color-text);
    overflow-wrap: anywhere;
}

.modal-prompt-desc {
    margin: 0 0 var(--spacing-md) 0;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-secondary);
    border-left: 3px solid var(--color-primary);
    border-radius: var(--border-radius-sm);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

.input-dialog input[type="text"],
.input-dialog textarea { width: 100%; }
.input-dialog textarea { min-height: 96px; }

/* ---------- 下拉列表（由 CustomSelect 绘制） ---------- */

.cs-trigger {
    display: block;
    width: 100%;
    min-height: 36px;
    padding: 8px 30px 8px 10px;
    text-align: left;
    white-space: normal;
    overflow-wrap: anywhere;
    line-height: 1.4;
    background-color: var(--color-bg);
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6'><path d='M0 0l5 6 5-6z' fill='%23808890'/></svg>");
    background-repeat: no-repeat;
    background-position: right 10px center;
    border: 1px solid var(--control-border);
    border-radius: var(--border-radius-sm);
    color: var(--color-text);
}
.cs-trigger:hover { background-color: var(--color-bg-secondary); }
.cs-trigger[aria-expanded="true"] {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 1px var(--color-primary);
}
.cs-trigger:disabled { opacity: 0.55; cursor: not-allowed; }
.cs-trigger.is-placeholder { color: var(--color-text-muted); }

.cs-list {
    position: fixed;
    z-index: var(--z-select);
    overflow-y: auto;
    overscroll-behavior: contain;
    background-color: var(--color-bg);
    border: 1px solid var(--control-border);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-xs) 0;
}

.cs-option {
    display: block;
    width: 100%;
    min-height: 40px;
    padding: 8px 12px;
    border: 0;
    border-radius: 0;
    border-left: 3px solid transparent;
    text-align: left;
    white-space: normal;
    overflow-wrap: anywhere;
    line-height: 1.4;
    background-color: var(--color-bg);
    color: var(--color-text);
}
.cs-option:hover,
.cs-option.is-active { background-color: var(--color-bg-tertiary); }
.cs-option[aria-selected="true"] {
    border-left-color: var(--color-primary);
}
.cs-option:disabled { opacity: 0.5; cursor: not-allowed; }
@media (pointer: coarse) { .cs-option { min-height: var(--tap-size); } }

/* ---------- 数字框 ---------- */

.num-field {
    display: inline-flex;
    align-items: stretch;
    max-width: 100%;
    min-width: 0;
}
.num-field > input {
    flex: 1 1 auto;
    min-width: 0;
    width: 7em;
}
.num-field > input:not(:last-child) {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}
.num-field > input:focus { position: relative; z-index: 1; }
.num-field > .num-unit {
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--control-border);
    border-left: 0;
    border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
    white-space: nowrap;
}

/* ---------- 提示 ---------- */

#toast-container {
    position: fixed;
    top: calc(var(--safe-top) + var(--header-height) + var(--spacing-sm));
    left: 0;
    right: 0;
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0 calc(var(--spacing-md) + var(--safe-right)) 0 calc(var(--spacing-md) + var(--safe-left));
    pointer-events: none;
}

.toast {
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    width: 100%;
    max-width: 480px;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-text);
    color: var(--color-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    overflow-wrap: anywhere;
    -webkit-user-select: text;
    user-select: text;
    animation: toastIn 0.2s ease;
}
.toast-text { flex: 1 1 auto; min-width: 0; }
/* 普通提示不挡点击：浮在页面顶部时下面的按钮照样能点；报错提示可以点一下收起、选中复制，撤销按钮始终能点 */
.toast:not(.error) { pointer-events: none; }
.toast .toast-action { pointer-events: auto; }
.toast.success { background-color: var(--color-success-bg); color: var(--color-on-fill); }
.toast.error { background-color: var(--color-danger-bg); color: var(--color-on-fill); }
.toast.warning { background-color: var(--color-warning-bg); color: var(--color-on-warning-bg); }
.toast.info { background-color: var(--color-info-bg); color: var(--color-on-fill); }

.toast-action {
    flex: 0 0 auto;
    min-height: 36px;
    padding: 0 var(--spacing-md);
    background: transparent;
    border: 1px solid currentColor;
    color: inherit;
    font-weight: 600;
}
.toast-action:hover { background-color: rgba(255, 255, 255, 0.18); }

.toast.fade-out { animation: toastOut 0.2s ease forwards; }

@keyframes toastIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes toastOut {
    from { opacity: 1; }
    to { opacity: 0; }
}