/* ===== 表單樣式 ===== */

/* 搜尋表單 */
.search-form {
    display: flex;
    align-items: center;
    width: 100%;
    max-width: 400px;
    background: #fff;
    border-radius: var(--radius-medium);
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--border-light);
    padding: 0;
    margin: 0 auto;
}

.search-input-group {
    display: flex;
    align-items: center;
    width: 100%;
}

.search-field {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-size: 1rem;
    padding: 0.7em 1em;
    border-radius: var(--radius-medium) 0 0 var(--radius-medium);
    color: var(--text-primary);
    height: 44px;
    min-width: 0;
}

.search-submit {
    background: var(--bg-light);
    border: none;
    outline: none;
    padding: 0 18px;
    border-radius: 0 var(--radius-medium) var(--radius-medium) 0;
    font-size: 1.2rem;
    color: var(--text-secondary);
    cursor: pointer;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    border-left: 1px solid var(--border-light);
}

.search-submit:hover {
    background: var(--border-light);
    color: var(--text-primary);
}

.search-submit .screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    border: 0;
}

/* 一般表單樣式 */
.form-group {
    margin-bottom: var(--space-md);
}

.form-label {
    display: block;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
    font-weight: 600;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-medium);
    outline: none;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    font-size: 1rem;
    background: var(--bg-white);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-button {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: var(--space-md) var(--space-xl);
    border: none;
    border-radius: var(--radius-medium);
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
    text-decoration: none;
}

.form-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.form-button.secondary {
    background: var(--primary-dark);
}

.form-button.secondary:hover {
    background: var(--primary-color);
}

/* 表單網格佈局 */
.form-grid {
    display: grid;
    gap: var(--space-md);
}

.form-grid.two-columns {
    grid-template-columns: 1fr 1fr;
}

.form-grid.three-columns {
    grid-template-columns: repeat(3, 1fr);
}

/* 表單驗證樣式 */
.form-input.error,
.form-select.error,
.form-textarea.error {
    border-color: #f44336;
    box-shadow: 0 0 0 3px rgba(244, 67, 54, 0.1);
}

.form-error {
    color: #f44336;
    font-size: 0.9rem;
    margin-top: var(--space-xs);
}

.form-success {
    color: #4caf50;
    font-size: 0.9rem;
    margin-top: var(--space-xs);
}

/* 響應式設計 */
@media (max-width: 768px) {
    .form-grid.two-columns,
    .form-grid.three-columns {
        grid-template-columns: 1fr;
    }
    
    .search-form {
        max-width: 100%;
    }
    
    .search-field {
        font-size: 1rem;
        padding: 0.6em 0.7em;
        height: 38px;
    }
    
    .search-submit {
        height: 38px;
        font-size: 1.1rem;
        padding: 0 12px;
    }
}