/**
 * frontend/apply-form.css
 * 用于美化前台“友情链接申请表单”区块的样式。
 */

/* ==================================== */
/* 整体表单容器 */
/* ==================================== */
.alp-apply-form-wrapper {
    background-color: #f9fafb; /* 柔和的背景色 */
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 24px;
    max-width: 700px; /* 限制最大宽度，在大屏幕上更美观 */
    margin: 20px auto; /* 居中显示 */
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* ==================================== */
/* 表单字段行 */
/* ==================================== */
.alp-apply-form-wrapper .form-table {
    width: 100%;
    border-spacing: 0;
}
.alp-apply-form-wrapper .form-table tr {
    margin-bottom: 20px;
    display: block;
}
.alp-apply-form-wrapper .form-table th,
.alp-apply-form-wrapper .form-table td {
    display: block;
    padding: 0;
    text-align: left;
    border: none;
}
.alp-apply-form-wrapper .form-table th {
    font-weight: 600;
    color: #374151;
    margin-bottom: 8px;
    padding-right: 20px;
}

/* ==================================== */
/* 输入框和下拉菜单样式 */
/* ==================================== */
.alp-apply-form-wrapper input[type="text"],
.alp-apply-form-wrapper input[type="url"],
.alp-apply-form-wrapper input[type="email"],
.alp-apply-form-wrapper select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 1rem;
    color: #111827;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.alp-apply-form-wrapper input:focus,
.alp-apply-form-wrapper select:focus {
    outline: none;
    border-color: #3b82f6; /* 聚焦时蓝色边框 */
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.3);
}

/* ==================================== */
/* 标签输入框专属样式 */
/* ==================================== */
.alp-apply-form-wrapper .alp-tags-container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    background-color: white;
    border: 1px solid #d1d5db;
    padding: 5px;
    border-radius: 6px;
    min-height: 44px; /* 确保与普通输入框高度接近 */
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.alp-apply-form-wrapper .alp-tags-container:focus-within {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.3);
}
.alp-apply-form-wrapper .alp-tag {
    display: flex;
    align-items: center;
    background-color: #e5e7eb;
    border-radius: 4px;
    padding: 4px 8px;
    margin: 3px;
    font-size: 0.875rem;
}
.alp-apply-form-wrapper .alp-tag .remove-tag {
    margin-left: 6px;
    cursor: pointer;
    color: #6b7280;
    border: none;
    background: none;
    padding: 0;
    font-size: 16px;
    line-height: 1;
}
.alp-apply-form-wrapper .alp-tags-input {
    flex-grow: 1;
    border: none;
    outline: none;
    padding: 6px;
    font-size: 1rem;
    min-width: 120px;
    box-shadow: none !important;
    background: transparent;
}
.alp-apply-form-wrapper .description,
.alp-apply-form-wrapper .alp-common-tags {
    font-size: 0.875rem;
    color: #6b7280;
    margin-top: 8px;
}
/* ==================================== */
/* 提交按钮 (重置并重写版) */
/* ==================================== */

form#alp-application-form .submit {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid #e5e7eb;
    text-align: center; 
    background: #f9fafb;
}

/* 核心修正：使用高特指性选择器，并重置 background 属性 */
form#alp-application-form input[type="submit"] {
    /* 
     * 步骤 1: 重置/移除所有继承的 background 样式。
     * 'unset' 会移除所有背景相关的属性（颜色、图片、位置等）。
     * 这就像给按钮的背景做了一次“格式化”。
     */
    background: unset !important;
    
    /* 
     * 步骤 2: 在清除了所有干扰后，重新应用我们自己的背景颜色。
     * 因为 background 被重置了，所以这里要用 background-color。
     */
    background-color: #3b82f6 !important;
    
    /* 其他我们希望应用的样式 */
    color: white !important;
    border: none !important;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    width: 100%;
    max-width: 200px;
    display: inline-block;
    transition: all 0.2s ease;
    -webkit-appearance: none;
    appearance: none;
    box-shadow: none !important; /* 同时重置 box-shadow，防止冲突 */
    text-shadow: none !important; /* 同时重置 text-shadow */
}

/* 为交互状态也应用同样的逻辑 */
form#alp-application-form input[type="submit"]:hover {
    background: unset !important;
    background-color: #2563eb !important;
}

form#alp-application-form input[type="submit"]:focus,
form#alp-application-form input[type="submit"]:focus-visible {
    outline: none !important;
    /* 聚焦时只改变 box-shadow，不改变背景 */
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.4) !important;
}

form#alp-application-form input[type="submit"]:disabled {
    background: unset !important;
    background-color: #9ca3af !important;
    cursor: not-allowed;
    opacity: 0.7;
}
/* ==================================== */
/* AJAX 消息提示 */
/* ==================================== */
.alp-form-message {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 6px;
    font-weight: 500;
}
.alp-form-message.success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}
.alp-form-message.error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}
/* ==================================== */
/* 分步式表单专属样式 */
/* ==================================== */

/* 进度条 */
.alp-progress-bar {
    display: flex;
    justify-content: space-between;
    margin-bottom: 24px;
    border-bottom: 2px solid #e5e7eb;
}
.alp-progress-bar .step-indicator {
    flex-grow: 1;
    text-align: center;
    padding: 12px 0;
    font-weight: 600;
    color: #9ca3af;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px; /* 让活动边框覆盖灰色边框 */
    transition: all 0.3s ease;
}
.alp-progress-bar .step-indicator.active {
    color: #3b82f6;
    border-bottom-color: #3b82f6;
}

/* 步骤容器的过渡效果 */
.form-step {
    transition: opacity 0.3s ease-in-out;
}

/* 导航按钮容器 */
.form-navigation {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
}

/* 导航按钮通用样式 */
.form-navigation button,
.form-navigation input[type="submit"] {
    border: none;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

/* “上一步” 按钮 */
#prev-step-btn {
    background-color: #e5e7eb;
    color: #374151;
}
#prev-step-btn:hover {
    background-color: #d1d5db;
}

/* “下一步” 和 “提交申请” 按钮 */
#next-step-btn,
.alp-apply-form-wrapper input[type="submit"] {
    background-color: #3b82f6;
    color: white;
}
#next-step-btn:hover,
.alp-apply-form-wrapper input[type="submit"]:hover {
    background-color: #2563eb;
}