/* 认证页面样式 - auth.css */

/* 主容器 */
.auth-main {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    position: relative;
}

.auth-main::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.auth-container {
    max-width: 1200px;
    width: 100%;
    position: relative;
    z-index: 1;
}

/* 认证卡片 */
.auth-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
    display: grid;
    grid-template-columns: 1fr 1fr;
    overflow: hidden;
    min-height: 600px;
    backdrop-filter: blur(20px);
}

.register-card {
    min-height: 800px;
}

/* 认证内容区域 */
.auth-content {
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.auth-header p {
    color: #6b7280;
    font-size: 1rem;
    line-height: 1.5;
}

/* 表单样式 */
.auth-form {
    width: 100%;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-wrapper i {
    position: absolute;
    left: 1rem;
    color: #9ca3af;
    font-size: 1rem;
    z-index: 2;
}

.input-wrapper input,
.input-wrapper select {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 2.75rem;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #ffffff;
}

.input-wrapper input:focus,
.input-wrapper select:focus {
    outline: none;
    border-color: #8b5cf6;
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.input-wrapper input::placeholder {
    color: #9ca3af;
}

/* 密码切换按钮 */
.password-toggle {
    position: absolute;
    right: 1rem;
    background: none;
    border: none;
    color: #9ca3af;
    cursor: pointer;
    font-size: 1rem;
    z-index: 2;
    transition: color 0.3s ease;
}

.password-toggle:hover {
    color: #6b7280;
}

/* 验证码按钮 */
.verify-btn {
    position: absolute;
    right: 0.5rem;
    background: linear-gradient(135deg, #8b5cf6, #a855f7);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.verify-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

.verify-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 表单提示 */
.form-hint {
    color: #6b7280;
    font-size: 0.75rem;
    margin-top: 0.25rem;
    display: block;
}

/* 密码强度指示器 */
.password-strength {
    margin-top: 0.5rem;
}

.strength-bar {
    height: 4px;
    background: #e5e7eb;
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 0.25rem;
}

.strength-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #ef4444, #f59e0b, #10b981);
    transition: all 0.3s ease;
    border-radius: 2px;
}

.strength-text {
    font-size: 0.75rem;
    color: #6b7280;
}

/* 表单选项 */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.forgot-password {
    color: #8b5cf6;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.forgot-password:hover {
    color: #7c3aed;
}

/* 复选框样式 */
.checkbox-wrapper {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 0.875rem;
    color: #374151;
}

.checkbox-wrapper input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid #d1d5db;
    border-radius: 4px;
    margin-right: 0.5rem;
    position: relative;
    transition: all 0.3s ease;
}

.checkbox-wrapper input[type="checkbox"]:checked + .checkmark {
    background: linear-gradient(135deg, #8b5cf6, #a855f7);
    border-color: #8b5cf6;
}

.checkbox-wrapper input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

/* 提交按钮 */
.auth-submit {
    width: 100%;
    background: linear-gradient(135deg, #8b5cf6, #a855f7);
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.auth-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.3);
}

.auth-submit:active {
    transform: translateY(0);
}

/* 分割线 */
.auth-divider {
    text-align: center;
    margin: 1.5rem 0;
    position: relative;
}

.auth-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: #e5e7eb;
}

.auth-divider span {
    background: white;
    padding: 0 1rem;
    color: #6b7280;
    font-size: 0.875rem;
    position: relative;
}

/* 社交登录 */
.social-login {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.social-btn {
    padding: 0.875rem;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    background: white;
    color: #374151;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.social-btn:hover {
    border-color: #d1d5db;
    background: #f9fafb;
    transform: translateY(-1px);
}

.social-wechat:hover {
    border-color: #07c160;
    color: #07c160;
}

.social-qq:hover {
    border-color: #12b7f5;
    color: #12b7f5;
}

/* 认证页脚 */
.auth-footer {
    text-align: center;
    margin-top: 1rem;
}

.auth-footer p {
    color: #6b7280;
    font-size: 0.875rem;
}

.auth-footer a {
    color: #8b5cf6;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.auth-footer a:hover {
    color: #7c3aed;
}

/* 侧边区域 */
.auth-side {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.auth-side::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="80" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="60" r="1.5" fill="rgba(255,255,255,0.1)"/></svg>');
    opacity: 0.3;
}

.auth-side-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.auth-illustration {
    margin-bottom: 2rem;
}

.auth-illustration img {
    max-width: 200px;
    height: auto;
    opacity: 0.9;
}

.auth-side h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.auth-side p {
    font-size: 1rem;
    line-height: 1.6;
    opacity: 0.9;
    margin-bottom: 2rem;
}

/* 认证特性 */
.auth-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.875rem;
}

.feature-item i {
    font-size: 1.25rem;
    opacity: 0.8;
}

/* 统计数据 */
.auth-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.stat-item {
    text-align: center;
}

.stat-item strong {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.stat-item span {
    font-size: 0.875rem;
    opacity: 0.8;
}

/* 用户类型选择器 */
.user-type-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 2rem;
}

.type-option {
    cursor: pointer;
}

.type-option input[type="radio"] {
    display: none;
}

.type-card {
    padding: 1.5rem;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    background: white;
}

.type-card i {
    font-size: 2rem;
    color: #8b5cf6;
    margin-bottom: 0.75rem;
}

.type-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.5rem;
}

.type-card p {
    font-size: 0.875rem;
    color: #6b7280;
    margin: 0;
}

.type-option input[type="radio"]:checked + .type-card {
    border-color: #8b5cf6;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(168, 85, 247, 0.05));
}

/* 开发者信息区域 */
.developer-info {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    border: 1px solid #e2e8f0;
}

.developer-info h4 {
    color: #374151;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.developer-info h4 i {
    color: #8b5cf6;
}

/* 技能标签 */
.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.skill-tag {
    padding: 0.5rem 1rem;
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    font-size: 0.875rem;
    color: #475569;
    cursor: pointer;
    transition: all 0.3s ease;
}

.skill-tag:hover {
    background: #e2e8f0;
}

.skill-tag.selected {
    background: linear-gradient(135deg, #8b5cf6, #a855f7);
    color: white;
    border-color: #8b5cf6;
}

/* 协议区域 */
.form-agreements {
    margin-bottom: 2rem;
}

.form-agreements .checkbox-wrapper {
    margin-bottom: 0.75rem;
}

.form-agreements .link {
    color: #8b5cf6;
    text-decoration: none;
    font-weight: 500;
}

.form-agreements .link:hover {
    text-decoration: underline;
}

/* 验证图标 */
.validation-icon {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    color: white;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.validation-icon.valid {
    background: #10b981;
    opacity: 1;
}

.validation-icon.invalid {
    background: #ef4444;
    opacity: 1;
}

.validation-icon.valid::after {
    content: '✓';
}

.validation-icon.invalid::after {
    content: '✗';
}

/* 响应式设计 */
@media (max-width: 768px) {
    .auth-main {
        padding: 1rem;
    }
    
    .auth-card {
        grid-template-columns: 1fr;
        min-height: auto;
    }
    
    .auth-content {
        padding: 2rem 1.5rem;
    }
    
    .auth-side {
        padding: 2rem 1.5rem;
        order: -1;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .user-type-selector {
        grid-template-columns: 1fr;
    }
    
    .social-login {
        grid-template-columns: 1fr;
    }
    
    .auth-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .skill-tags {
        justify-content: center;
    }
    
    .verify-btn {
        position: static;
        margin-top: 0.5rem;
        width: 100%;
    }
    
    .input-wrapper {
        flex-direction: column;
        align-items: stretch;
    }
}

@media (max-width: 480px) {
    .auth-content {
        padding: 1.5rem 1rem;
    }
    
    .auth-side {
        padding: 1.5rem 1rem;
    }
    
    .auth-header h1 {
        font-size: 1.5rem;
    }
    
    .type-card {
        padding: 1rem;
    }
    
    .developer-info {
        padding: 1rem;
    }
}