/* ========== 统一输入框样式 ========== */

/* 基础输入框 */
input[type="text"],
input[type="email"],
input[type="url"],
input[type="password"],
input[type="search"],
input[type="number"],
input[type="tel"],
input[type="date"],
textarea,
select {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    font-family: inherit;
    line-height: 1.5;
    color: var(--text);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
    outline: none;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="url"]:focus,
input[type="password"]:focus,
input[type="search"]:focus,
input[type="number"]:focus,
input[type="tel"]:focus,
input[type="date"]:focus,
textarea:focus,
select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.1);
    background: var(--bg-card-2);
}

input[type="text"]:disabled,
input[type="email"]:disabled,
input[type="url"]:disabled,
input[type="password"]:disabled,
input[type="search"]:disabled,
input[type="number"]:disabled,
input[type="tel"]:disabled,
input[type="date"]:disabled,
textarea:disabled,
select:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background: var(--bg-card-2);
}

input::placeholder,
textarea::placeholder {
    color: var(--text-3);
    opacity: 1;
}

textarea {
    resize: vertical;
    min-height: 100px;
}

select {
    cursor: pointer;
    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='%23666' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2.5rem;
    appearance: none;
}

[data-theme="light"] 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='%23333' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
}

/* 按钮样式 */
button,
input[type="submit"],
input[type="button"],
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
    font-family: inherit;
    font-weight: 500;
    line-height: 1.5;
    color: #fff;
    background: var(--accent);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
    outline: none;
    text-decoration: none;
}

button:hover,
input[type="submit"]:hover,
input[type="button"]:hover,
.btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(var(--accent-rgb), 0.3);
}

button:active,
input[type="submit"]:active,
input[type="button"]:active,
.btn:active {
    transform: translateY(0);
}

button:disabled,
input[type="submit"]:disabled,
input[type="button"]:disabled,
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* 次要按钮 */
.btn--secondary {
    background: var(--bg-card-2);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn--secondary:hover {
    background: var(--bg-hover);
    box-shadow: none;
}

/* 小按钮 */
.btn--sm {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

/* 表单组 */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text);
}

.form-help {
    display: block;
    margin-top: 0.4rem;
    font-size: 0.85rem;
    color: var(--text-3);
}

.form-error {
    display: block;
    margin-top: 0.4rem;
    font-size: 0.85rem;
    color: #ef4444;
}

/* Checkbox 和 Radio */
input[type="checkbox"],
input[type="radio"] {
    width: auto;
    margin-right: 0.5rem;
    cursor: pointer;
}

.form-check {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
}

.form-check input {
    margin-top: 0;
}

.form-check-label {
    cursor: pointer;
    user-select: none;
}

/* 搜索框特殊样式 */
.search-form {
    position: relative;
}

.search-form input[type="search"] {
    padding-right: 3rem;
}

.search-form button {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    padding: 0.5rem;
    background: transparent;
    color: var(--text-3);
}

.search-form button:hover {
    color: var(--accent);
    background: transparent;
    box-shadow: none;
    transform: translateY(-50%);
}

/* 响应式 */
@media (max-width: 768px) {
    input[type="text"],
    input[type="email"],
    input[type="url"],
    input[type="password"],
    input[type="search"],
    input[type="number"],
    input[type="tel"],
    input[type="date"],
    textarea,
    select {
        font-size: 16px;
    }
    
    button,
    input[type="submit"],
    input[type="button"],
    .btn {
        padding: 0.7rem 1.25rem;
    }
}