/* foundation.css - TocoMini 原生元素最小基础层
 * 职责：接管当前正式前端的最小原生元素基础行为
 * 注意：只承担基础层，不承担组件视觉（组件视觉在 components.css）
 */

/* ==================== 基础继承重置 ==================== */
input,
button,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    color: inherit;
}

/* ==================== 按钮去默认 ==================== */
button {
    appearance: none;
    -webkit-appearance: none;
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    cursor: pointer;
}

button:disabled,
button[aria-disabled="true"] {
    cursor: not-allowed;
    opacity: 0.6;
}

/* ==================== 表单输入基础 ==================== */
input,
select,
textarea {
    appearance: none;
    -webkit-appearance: none;
    background: var(--bg-primary, #fff);
    border: 1px solid var(--border-medium, #d1d5db);
    border-radius: var(--radius-lg, 0.5rem);
    padding: 0.625rem 0.875rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-500, #06b6d4);
}

input:disabled,
select:disabled,
textarea:disabled,
input[aria-disabled="true"],
select[aria-disabled="true"],
textarea[aria-disabled="true"] {
    opacity: 0.6;
    cursor: not-allowed;
    background: var(--bg-tertiary, #f3f4f6);
}

/* ==================== Placeholder ==================== */
input::placeholder,
textarea::placeholder {
    color: var(--text-tertiary, #9ca3af);
    opacity: 1;
}

/* ==================== Search 输入去装饰 ==================== */
input[type="search"]::-webkit-search-decoration,
input[type="search"]::-webkit-search-cancel-button,
input[type="search"]::-webkit-search-results-button,
input[type="search"]::-webkit-search-results-decoration {
    -webkit-appearance: none;
    appearance: none;
}

/* ==================== Number 输入去 Spinner ==================== */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    appearance: none;
    margin: 0;
}

input[type="number"] {
    -moz-appearance: textfield;
}

/* ==================== Select 去默认箭头 ==================== */
select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2.5rem;
    cursor: pointer;
}

select::-ms-expand {
    display: none;
}

/* ==================== Focus Visible ==================== */
:focus-visible {
    outline: 2px solid var(--primary-500, #06b6d4);
    outline-offset: 2px;
}

/* 按钮 focus-visible 简化 */
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--primary-500, #06b6d4);
    outline-offset: 2px;
}

/* ==================== Checkbox / Radio 基础 ==================== */
input[type="checkbox"],
input[type="radio"] {
    appearance: auto;
    -webkit-appearance: auto;
    width: auto;
    height: auto;
    margin: 0;
    padding: 0;
    cursor: pointer;
}

/* ==================== 暗色主题适配 ==================== */
[data-theme="dark"] input,
[data-theme="dark"] select,
[data-theme="dark"] textarea {
    background: var(--bg-primary, #111827);
    border-color: var(--border-medium, #374151);
    color: var(--text-primary, #f9fafb);
}

[data-theme="dark"] input:disabled,
[data-theme="dark"] select:disabled,
[data-theme="dark"] textarea:disabled {
    background: var(--bg-tertiary, #1f2937);
}

[data-theme="dark"] select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239ca3af' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
}

[data-theme="dark"] input::placeholder,
[data-theme="dark"] textarea::placeholder {
    color: var(--text-tertiary, #6b7280);
}