/* 认证表单专用样式 */

.auth-container {
    animation: slideInUp 0.6s ease-out;
}

.auth-form-wrapper {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    box-shadow: 
        0 20px 25px -5px rgba(0, 0, 0, 0.1),
        0 10px 10px -5px rgba(0, 0, 0, 0.04),
        inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.form-group {
    position: relative;
}

.form-group input {
    transition: all 0.3s ease;
}

.form-group input:focus {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.15);
}

.form-group input:valid {
    border-color: #10b981;
}

.form-group input.error {
    border-color: #ef4444;
    background-color: rgba(239, 68, 68, 0.05);
}

.error-message {
    animation: slideDown 0.3s ease-out;
    font-size: 0.875rem;
}

.error-message.show {
    display: block !important;
}

/* 发送验证码按钮状态 */
#sendCodeBtn:disabled {
    background-color: #9ca3af;
    cursor: not-allowed;
}

#sendCodeBtn.countdown {
    background-color: #6b7280;
}

/* 登录/注册按钮动画 */
#loginBtn, #registerBtn {
    position: relative;
    overflow: hidden;
    transform: translateZ(0);
}

#loginBtn:hover, #registerBtn:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.3);
}

#loginBtn:active, #registerBtn:active {
    transform: translateY(0);
}

/* 状态消息样式 */
#statusMessage {
    border-left: 4px solid currentColor;
    animation: slideInLeft 0.4s ease-out;
}

#statusMessage.success {
    background-color: rgba(16, 185, 129, 0.1);
    color: #059669;
    border-color: #10b981;
}

#statusMessage.error {
    background-color: rgba(239, 68, 68, 0.1);
    color: #dc2626;
    border-color: #ef4444;
}

#statusMessage.info {
    background-color: rgba(59, 130, 246, 0.1);
    color: #2563eb;
    border-color: #3b82f6;
}

#statusMessage.warning {
    background-color: rgba(245, 158, 11, 0.1);
    color: #d97706;
    border-color: #f59e0b;
}

/* 动画定义 */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
        max-height: 0;
    }
    to {
        opacity: 1;
        transform: translateY(0);
        max-height: 50px;
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 输入框聚焦效果 */
.form-group label {
    transition: all 0.3s ease;
}

.form-group input:focus + .absolute i {
    color: #2563eb;
    transform: scale(1.1);
}

/* 响应式设计 */
@media (max-width: 640px) {
    .auth-form-wrapper {
        margin: 1rem;
        padding: 1.5rem;
    }
    
    .form-group {
        margin-bottom: 1rem;
    }
    
    #sendCodeBtn {
        padding: 0.75rem 1rem;
        font-size: 0.875rem;
    }
}

/* 加载状态 */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #ffffff;
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 表单验证提示 */
.form-group .valid-feedback {
    color: #10b981;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.form-group .valid-feedback::before {
    content: '✓ ';
    font-weight: bold;
}

/* 密码强度指示器（预留） */
.password-strength {
    height: 4px;
    background-color: #e5e7eb;
    border-radius: 2px;
    margin-top: 0.5rem;
    overflow: hidden;
}

.password-strength-bar {
    height: 100%;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.password-strength.weak .password-strength-bar {
    width: 33%;
    background-color: #ef4444;
}

.password-strength.medium .password-strength-bar {
    width: 66%;
    background-color: #f59e0b;
}

.password-strength.strong .password-strength-bar {
    width: 100%;
    background-color: #10b981;
}