/* 简洁白色认证页面主题 - Clean White Authentication Theme */

body {
    background: #f5f5f5 !important;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 20px 0;
}

/* 认证容器 */
.auth-container, .reset-card, .register-card {
    background: #ffffff !important;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    max-width: 500px;
    margin: 0 auto;
}

.register-card {
    max-width: 550px;
}

/* 头部样式 */
.auth-header, .reset-header, .register-header, .step-indicator {
    background: #007bff !important;
    color: white !important;
    padding: 2rem;
    text-align: center;
}

.auth-header h3, .reset-header h3, .register-header h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: white !important;
}

.auth-header p, .reset-header p, .register-header p {
    color: rgba(255, 255, 255, 0.95) !important;
    margin: 0;
}

/* 主体内容 */
.auth-body, .reset-body, .register-body {
    padding: 2.5rem 2rem;
    background: #ffffff !important;
}

/* 表单控件 */
.form-control, .form-select {
    padding: 0.75rem;
    border-radius: 6px;
    border: 1px solid #ced4da;
    transition: all 0.3s;
    background: #ffffff !important;
    color: #333333 !important;
}

.form-control:focus, .form-select:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.15);
    background: #ffffff !important;
    color: #333333 !important;
}

.form-control::placeholder {
    color: #999999 !important;
}

.form-label {
    color: #333333 !important;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

/* 按钮样式 */
.btn {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: 6px;
    transition: all 0.3s;
    border: none;
}

.btn-primary {
    background: #007bff !important;
    color: #ffffff !important;
}

.btn-primary:hover {
    background: #0056b3 !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.btn-outline-primary {
    color: #007bff !important;
    border: 2px solid #007bff !important;
    background: transparent !important;
}

.btn-outline-primary:hover {
    background: #007bff !important;
    color: #ffffff !important;
    border-color: #007bff !important;
    transform: translateY(-1px);
}

.btn-outline-secondary {
    color: #6c757d !important;
    border: 2px solid #6c757d !important;
    background: transparent !important;
}

.btn-outline-secondary:hover {
    background: #6c757d !important;
    color: #ffffff !important;
    transform: translateY(-1px);
}

.btn-success {
    background: #28a745 !important;
    color: #ffffff !important;
}

.btn-success:hover {
    background: #218838 !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
}

.btn-dark {
    background: #343a40 !important;
    color: #ffffff !important;
}

.btn-dark:hover {
    background: #23272b !important;
    transform: translateY(-1px);
}

.btn-link {
    color: #007bff !important;
    text-decoration: none;
}

.btn-link:hover {
    color: #0056b3 !important;
    text-decoration: underline;
}

/* 警告框 */
.alert {
    border-radius: 8px;
    border: none;
    color: #333333 !important;
}

.alert-success {
    background: #d4edda !important;
    color: #155724 !important;
}

.alert-danger {
    background: #f8d7da !important;
    color: #721c24 !important;
}

.alert-info {
    background: #d1ecf1 !important;
    color: #0c5460 !important;
}

/* 步骤指示器 */
.step-indicator {
    background: #007bff !important;
    padding: 1.5rem;
    border-bottom: 3px solid rgba(255, 255, 255, 0.2);
}

.step-container {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 2;
}

.step-circle {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    color: white !important;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.2rem;
    transition: all 0.3s;
    border: 3px solid transparent;
}

.step.active .step-circle {
    background: white !important;
    color: #007bff !important;
    border-color: white;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.4);
    transform: scale(1.1);
}

.step.completed .step-circle {
    background: #28a745 !important;
    border-color: #28a745;
    color: white !important;
}

.step-label {
    color: rgba(255, 255, 255, 0.9) !important;
    font-size: 0.75rem;
    margin-top: 0.5rem;
    font-weight: 500;
}

.step.active .step-label {
    color: white !important;
    font-weight: 600;
}

.step-line {
    position: absolute;
    top: 22px;
    left: 50%;
    width: 100px;
    height: 3px;
    background: rgba(255, 255, 255, 0.3);
    z-index: 1;
}

.step.completed ~ .step .step-line {
    background: #28a745;
}

/* Tab 样式 */
.nav-tabs {
    border-bottom: 2px solid #e0e0e0;
    margin-bottom: 2rem;
}

.nav-tabs .nav-link {
    color: #6c757d !important;
    border: none;
    border-bottom: 3px solid transparent;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s;
}

.nav-tabs .nav-link:hover {
    color: #007bff !important;
    border-color: transparent;
}

.nav-tabs .nav-link.active {
    color: #007bff !important;
    background: transparent !important;
    border-color: transparent transparent #007bff transparent;
}

/* 输入组 */
.input-group-text {
    background: #f8f9fa !important;
    border: 1px solid #ced4da;
    color: #333333 !important;
}

/* 验证码容器 */
.captcha-container {
    display: flex;
    gap: 10px;
    align-items: center;
}

.captcha-container img {
    border: 1px solid #ced4da;
    border-radius: 6px;
    cursor: pointer;
}

/* 卡片 */
.card {
    background: #ffffff !important;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.card-header {
    background: #f8f9fa !important;
    border-bottom: 1px solid #e0e0e0;
    color: #333333 !important;
    font-weight: 600;
}

.card-body {
    color: #333333 !important;
}

/* 文本样式 */
h1, h2, h3, h4, h5, h6 {
    color: #333333 !important;
}

p, span, div, label, small, strong, em, b {
    color: #333333 !important;
}

.text-muted {
    color: #6c757d !important;
}

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

/* GitHub 按钮 */
.btn-github {
    background: #24292e !important;
    color: #ffffff !important;
    border: none;
}

.btn-github:hover {
    background: #1a1e22 !important;
    transform: translateY(-1px);
}

/* 成功消息卡片 */
.success-icon {
    width: 80px;
    height: 80px;
    background: #28a745;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2.5rem;
}

/* 响应式 */
@media (max-width: 576px) {
    .auth-container, .reset-card, .register-card {
        margin: 0 15px;
    }
    
    .auth-body, .reset-body, .register-body {
        padding: 2rem 1.5rem;
    }
    
    .step-line {
        width: 60px;
    }
}