/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #4285F4 0%, #A1C4FD 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

/* 登录容器 */
.login-container {
    width: 100%;
    max-width: 400px;
    perspective: 1000px;
}

.login-card {
    background: #FFFFFF;
    border-radius: 16px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.1);
    padding: 40px 32px;
    transform: translateY(0);
    transition: all 0.3s ease;
    animation: slideUp 0.6s ease-out;
}

.login-card:hover {
    transform: translateY(-2px);
    box-shadow: 0px 8px 16px rgba(0, 0, 0, 0.12);
}

/* 头部区域 */
.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.logo {
    width: 60px;
    height: 60px;
    background: #4285F4;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 24px;
    color: #FFFFFF;
    box-shadow: 0px 4px 10px rgba(66, 133, 244, 0.3);
}

.login-header h1 {
    font-size: 24px;
    font-weight: 600;
    color: #202124;
    margin-bottom: 8px;
}

.login-header p {
    font-size: 14px;
    color: #5F6368;
    font-weight: 400;
}

/* 登录表单 */
.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-group label {
    font-size: 14px;
    font-weight: 500;
    color: #202124;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.input-wrapper i {
    position: absolute;
    left: 16px;
    color: #5F6368;
    font-size: 16px;
    z-index: 2;
}

.input-wrapper input {
    width: 100%;
    padding: 16px 50px 16px 48px;
    border: 1px solid #DADCE0;
    border-radius: 8px;
    font-size: 14px;
    font-family: 'Inter', sans-serif;
    background: #F8F9FA;
    transition: all 0.3s ease;
    outline: none;
    box-sizing: border-box;
}

.input-wrapper input:focus {
    border-color: #4285F4;
    background: #FFFFFF;
    box-shadow: 0 0 0 2px rgba(66, 133, 244, 0.2);
}

.input-wrapper input::placeholder {
    color: #9AA0A6;
}

.toggle-password {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #5F6368;
    cursor: pointer;
    font-size: 14px;
    padding: 6px;
    border-radius: 4px;
    transition: all 0.3s ease;
    z-index: 10;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.toggle-password:hover {
    color: #4285F4;
    background: rgba(66, 133, 244, 0.1);
    transform: translateY(-50%);
}

/* 表单选项 */
.form-options {
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.remember-me {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 14px;
    color: #5F6368;
    user-select: none;
}

.remember-me input[type="checkbox"] {
    opacity: 0;
    position: absolute;
    width: 0;
    height: 0;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 1px solid #DADCE0;
    border-radius: 4px;
    margin-right: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    position: relative;
}

.remember-me input:checked ~ .checkmark {
    background: #4285F4;
    border-color: #4285F4;
}

.remember-me input:checked ~ .checkmark::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: #FFFFFF;
    font-size: 10px;
}

.remember-me:hover .checkmark {
    border-color: #4285F4;
    box-shadow: 0 0 0 2px rgba(66, 133, 244, 0.1);
}

/* 登录按钮 */
.login-btn {
    width: 100%;
    padding: 16px 24px;
    background: linear-gradient(to right, #4285F4, #A1C4FD);
    border: none;
    border-radius: 8px;
    color: #FFFFFF;
    font-size: 16px;
    font-weight: 500;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
    margin-top: 8px;
    box-shadow: 0px 2px 8px rgba(66, 133, 244, 0.2);
}

.login-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0px 4px 12px rgba(66, 133, 244, 0.3);
    background: linear-gradient(to right, #3367D6, #8BB9FE);
}

.login-btn:active {
    transform: translateY(0);
}

.login-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.login-btn i {
    font-size: 16px;
}

/* 错误信息 */
.error-message {
    background: #FEF7F0;
    color: #EA4335;
    padding: 12px 16px;
    border-radius: 8px;
    border: 1px solid #FECACA;
    font-weight: 500;
    text-align: center;
    font-size: 14px;
    margin-top: 16px;
    animation: shake 0.5s ease-in-out;
}

/* 页脚 */
.login-footer {
    text-align: center;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid #E8EAED;
}

.login-footer p {
    font-size: 12px;
    color: #9AA0A6;
}

/* 提示消息 */
.toast {
    position: fixed;
    top: 24px;
    right: 24px;
    padding: 12px 16px;
    border-radius: 8px;
    color: #FFFFFF;
    font-weight: 500;
    font-size: 14px;
    font-family: 'Inter', sans-serif;
    z-index: 1000;
    transform: translateX(400px);
    transition: transform 0.3s ease;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.2);
}

.toast.show {
    transform: translateX(0);
}

.toast.success {
    background: #4285F4;
}

.toast.error {
    background: #EA4335;
}

.toast.info {
    background: #4285F4;
}

/* 动画 */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-5px);
    }
    75% {
        transform: translateX(5px);
    }
}

/* 响应式设计 */
@media (max-width: 480px) {
    body {
        padding: 16px;
    }
    
    .login-card {
        padding: 32px 24px;
        border-radius: 16px;
    }
    
    .login-header h1 {
        font-size: 22px;
    }
    
    .logo {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }
    
    .input-wrapper input {
        padding: 14px 46px 14px 44px;
    }
    
    .login-btn {
        padding: 14px;
        font-size: 15px;
    }
    
    .toast {
        right: 16px;
        top: 16px;
        left: 16px;
        right: 16px;
        transform: translateY(-100px);
    }
    
    .toast.show {
        transform: translateY(0);
    }
}