/* Friend Link Application - Frontend Styles */
/* 适配 AeroCore 主题风格 */

.fla-form-container {
    margin: 20px 0;
}

.fla-message {
    padding: 12px 16px;
    margin-bottom: 16px;
    border-radius: var(--border-radius-sm, 3px);
    display: none;
    font-size: 14px;
}

.fla-message.fla-success {
    background: rgba(39, 174, 96, 0.1);
    color: #27ae60;
    border: 1px solid rgba(39, 174, 96, 0.2);
    display: block;
}

.fla-message.fla-error {
    background: rgba(231, 76, 60, 0.1);
    color: #e74c3c;
    border: 1px solid rgba(231, 76, 60, 0.2);
    display: block;
}

/* 两列布局 */
.fla-form-row {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}

.fla-form-row .fla-form-group {
    flex: 1;
    margin-bottom: 0;
}

/* 单列布局（描述和按钮） */
.fla-form-group {
    margin-bottom: 16px;
}

.fla-form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--color-text, #333);
    font-size: 14px;
}

.fla-form-group label .fla-required {
    color: #e74c3c;
    margin-left: 2px;
}

.fla-form-group input[type="text"],
.fla-form-group input[type="email"],
.fla-form-group input[type="url"],
.fla-form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: var(--border-radius-sm, 3px);
    font-size: 14px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    box-sizing: border-box;
    background: var(--bg-input, #fff);
    color: var(--color-text, #333);
}

.fla-form-group input:focus,
.fla-form-group textarea:focus {
    outline: none;
    border-color: var(--theme-color, #41B883);
    box-shadow: 0 0 0 2px rgba(65, 184, 131, 0.15);
}

.fla-form-group input::placeholder,
.fla-form-group textarea::placeholder {
    color: #999;
}

.fla-form-group textarea {
    min-height: 80px;
    resize: vertical;
    line-height: 1.6;
}

.fla-form-group .fla-hint {
    font-size: 12px;
    color: #888;
    margin-top: 4px;
    line-height: 1.4;
}

/* 字段错误状态 */
.fla-form-group input.fla-input-error,
.fla-form-group textarea.fla-input-error {
    border-color: #e74c3c;
    box-shadow: 0 0 0 2px rgba(231, 76, 60, 0.12);
}

.fla-field-error {
    font-size: 12px;
    color: #e74c3c;
    margin-top: 4px;
    line-height: 1.4;
}

.fla-submit-btn {
    display: block;
    margin: 0 auto;
    padding: 10px 24px;
    background: var(--theme-color, #41B883);
    color: #fff;
    border: none;
    border-radius: var(--border-radius-sm, 3px);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.1s ease;
}

.fla-submit-btn:hover {
    background: #3d8bef;
}

.fla-submit-btn:active {
    transform: scale(0.98);
}

.fla-submit-btn:disabled {
    background: #bdc3c7;
    cursor: not-allowed;
    transform: none;
}

.fla-loading {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid #fff;
    border-top-color: transparent;
    border-radius: 50%;
    animation: fla-spin 0.8s linear infinite;
    margin-right: 6px;
    vertical-align: middle;
}

@keyframes fla-spin {
    to {
        transform: rotate(360deg);
    }
}

/* Logo 预览 */
.fla-logo-preview {
    display: none;
    margin-top: 8px;
    align-items: center;
    gap: 10px;
    /* 固定高度，防止图片加载成功/失败时引起页面跳动 */
    min-height: 52px;
}

.fla-logo-preview-img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    border-radius: var(--border-radius-sm, 3px);
    border: 1px solid var(--border-color, #e0e0e0);
    background: var(--bg-input, #fff);
    padding: 2px;
    flex-shrink: 0;
    /* 加载中/失败时显示灰色占位背景，尺寸不变 */
    background-color: #f0f2f5;
}

.fla-logo-preview-img.fla-img-loading {
    opacity: 0.4;
}

.fla-logo-preview-img.fla-img-error {
    opacity: 0;
}

.fla-logo-preview-status {
    font-size: 12px;
    color: #aaa;
    line-height: 1.4;
}

.fla-logo-preview-status.fla-status-error {
    color: #e74c3c;
}

.fla-logo-preview-err {
    display: none; /* 保留元素但不再使用，避免影响布局 */
}

/* 暗色模式适配 */
html[data-theme="dark"] .fla-form-group label {
    color: #c8cdd2;
}

html[data-theme="dark"] .fla-form-group input,
html[data-theme="dark"] .fla-form-group textarea {
    background: var(--bg-input, #2a2a2a);
    border-color: var(--border-color, #444);
    color: var(--color-text, #e0e0e0);
}

html[data-theme="dark"] .fla-form-group input::placeholder,
html[data-theme="dark"] .fla-form-group textarea::placeholder {
    color: #666;
}

html[data-theme="dark"] .fla-form-group .fla-hint {
    color: #666;
}

/* ── 滑块验证 ── */
.fla-slider-wrap {
    margin-bottom: 20px;
}

.fla-slider-track {
    position: relative;
    height: 44px;
    background: var(--bg-input, #f0f2f5);
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 4px;
    cursor: pointer;
    user-select: none;
    overflow: hidden;
}

.fla-slider-fill {
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 44px;
    background: rgba(65, 184, 131, 0.15);
    transition: background 0.2s;
    border-radius: 4px 0 0 4px;
}

.fla-slider-track.fla-slider-done .fla-slider-fill {
    background: rgba(65, 184, 131, 0.25);
}

.fla-slider-thumb {
    position: absolute;
    left: 0; top: 0;
    width: 44px;
    height: 100%;
    background: #fff;
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
    box-shadow: 0 1px 4px rgba(0,0,0,.1);
    transition: background 0.2s, color 0.2s, border-color 0.2s;
    cursor: grab;
    z-index: 1;
}

.fla-slider-thumb:active {
    cursor: grabbing;
}

.fla-slider-track.fla-slider-done .fla-slider-thumb {
    background: var(--theme-color, #41B883);
    border-color: var(--theme-color, #41B883);
    color: #fff;
}

.fla-slider-text {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    color: #aaa;
    pointer-events: none;
    transition: opacity 0.2s;
    /* 不加 padding，文字在整个轨道内真正居中 */
}

.fla-slider-track.fla-slider-done .fla-slider-text {
    color: var(--theme-color, #41B883);
    font-weight: 500;
}

/* 暗色模式 */
html[data-theme="dark"] .fla-slider-track {
    background: var(--bg-input, #2a2a2a);
    border-color: var(--border-color, #444);
}

html[data-theme="dark"] .fla-slider-thumb {
    background: #3a3a3a;
    border-color: #555;
    color: #888;
}

html[data-theme="dark"] .fla-slider-track.fla-slider-done .fla-slider-thumb {
    background: var(--theme-color, #41B883);
    border-color: var(--theme-color, #41B883);
    color: #fff;
}

/* 响应式 - 手机端单列 */
@media (max-width: 768px) {
    .fla-form-container {
        margin: 16px 0;
    }
    
    .fla-form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .fla-form-row .fla-form-group {
        margin-bottom: 16px;
    }
    
    .fla-form-group {
        margin-bottom: 14px;
    }
    
    .fla-submit-btn {
        width: 100%;
    }
}