/* 登录和注册页面样式 */
:root {
    --primary-color: #4361ee;
    --secondary-color: #3f37c9;
    --success-color: #4caf50;
    --danger-color: #f44336;
    --warning-color: #ff9800;
    --info-color: #2196f3;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --muted-color: #6c757d;
    --white-color: #ffffff;
    --border-radius: 8px;
    --box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.auth-page {
    min-height: 100vh;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
    font-family: 'Nunito', sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-container {
    width: 100%;
    padding: 2rem 1rem;
}

.auth-wrapper {
    max-width: 450px;
    margin: 0 auto;
}

.auth-card {
    background-color: var(--white-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.auth-header {
    padding: 2rem 2rem 1rem;
}

.auth-header .logo {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.auth-header .logo i {
    font-size: 2rem;
    margin-right: 0.5rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.auth-header h4 {
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.auth-header p {
    font-size: 0.95rem;
}

.auth-body {
    padding: 1rem 2rem 2rem;
}

.auth-footer {
    padding: 1.5rem;
    background-color: var(--light-color);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

/* 表单样式 */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.input-group {
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.input-group-text {
    background-color: var(--white-color);
    border: none;
    color: var(--muted-color);
}

.form-control {
    border: none;
    padding: 0.75rem 1rem;
    height: auto;
    font-size: 1rem;
}

.form-control:focus {
    box-shadow: none;
    background-color: var(--light-color);
}

.input-group-prepend .input-group-text {
    border-right: 1px solid rgba(0, 0, 0, 0.05);
}

.input-group-append .input-group-text {
    border-left: 1px solid rgba(0, 0, 0, 0.05);
    cursor: pointer;
}

.toggle-password:hover {
    color: var(--primary-color);
}

.form-text {
    font-size: 0.85rem;
    margin-top: 0.5rem;
}

/* 自定义复选框和开关 */
.custom-control-label {
    font-size: 0.95rem;
    padding-top: 0.15rem;
}

.custom-control-input:checked ~ .custom-control-label::before {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.custom-checkbox .custom-control-label::before {
    border-radius: 4px;
}

.custom-switch .custom-control-label::before {
    border-radius: 1rem;
}

/* 按钮样式 */
.btn {
    padding: 0.6rem 1.5rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border: none;
    box-shadow: 0 4px 12px rgba(67, 97, 238, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(67, 97, 238, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(67, 97, 238, 0.3);
}

.btn-lg {
    padding: 0.8rem 1.5rem;
    font-size: 1.1rem;
}

.btn-block {
    margin-top: 2rem;
}

.btn-link {
    color: var(--muted-color);
    text-decoration: none;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
}

.btn-link:hover {
    background-color: rgba(0, 0, 0, 0.05);
    text-decoration: none;
}

/* 警告框样式 */
.alert {
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1.5rem;
    border: none;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.alert-danger {
    background-color: #fff2f2;
    color: #d32f2f;
}

.alert-success {
    background-color: #f0fff4;
    color: #2e7d32;
}

/* 响应式调整 */
@media (max-width: 576px) {
    .auth-header {
        padding: 1.5rem 1.5rem 0.5rem;
    }
    
    .auth-body {
        padding: 0.5rem 1.5rem 1.5rem;
    }
    
    .form-group {
        margin-bottom: 1.25rem;
    }
    
    .btn-block {
        margin-top: 1.5rem;
    }
}

/* 链接样式 */
a {
    color: var(--primary-color);
    transition: all 0.2s ease;
}

a:hover {
    color: var(--secondary-color);
    text-decoration: none;
}

/* 动画效果 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.auth-card {
    animation: fadeIn 0.5s ease-out;
}