@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500&display=swap');

:root {
    --primary-color: #1a237e;  /* 深蓝色主色调 */
    --primary-hover: #0d47a1;  /* 深蓝色悬停色 */
    --background-color: #f5f5f5;  /* 灰白色背景 */
    --form-bg: #ffffff;  /* 白色表单背景 */
    --text-color: #212121;  /* 深灰色文字 */
    --input-bg: #f5f5f5;  /* 浅灰色输入框背景 */
    --error-color: #d32f2f;  /* 红色错误提示 */
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Roboto', sans-serif;
    background: var(--background-color);
    background-image: url('bg-pattern.png');
    background-repeat: repeat;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    color: var(--text-color);
}

.profile-page, .login-page {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.profile-info {
    margin: 30px 0;
    text-align: left;
}

.info-item {
    margin-bottom: 15px;
    font-size: 16px;
}

.info-item span {
    font-weight: 500;
    color: var(--primary-color);
}

.logout-btn {
    display: block;
    width: 100%;
    padding: 15px;
    background: var(--primary-color);
    color: white;
    text-align: center;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.logout-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
}

.form {
    position: relative;
    background: var(--form-bg);
    border-radius: 10px;
    padding: 40px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    text-align: center;
    transition: all 0.3s ease;
    animation: fadeIn 0.5s ease-out forwards;
}

.form:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.form h1 {
    margin-bottom: 30px;
    font-weight: 500;
    color: var(--primary-color);
    font-size: 28px;
}

.form input {
    font-family: 'Roboto', sans-serif;
    outline: 0;
    background: var(--input-bg);
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    margin: 0 0 15px;
    padding: 15px;
    font-size: 16px;
    transition: all 0.3s ease;
    color: var(--text-color);
}

.form input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(74, 111, 165, 0.2);
}

.form button {
    font-family: 'Roboto', sans-serif;
    text-transform: uppercase;
    font-weight: 500;
    background: var(--primary-color);
    width: 100%;
    border: 0;
    border-radius: 5px;
    padding: 15px;
    color: #FFFFFF;
    font-size: 16px;
    transition: all 0.3s ease;
    cursor: pointer;
    letter-spacing: 1px;
    margin-top: 10px;
}

.form button:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
}

.form button:active {
    transform: translateY(0);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.error-message {
    color: var(--error-color);
    margin-bottom: 15px;
    font-size: 14px;
    text-align: left;
    display: none;
}

@media (max-width: 480px) {
    .login-page {
        padding: 10px;
    }
    
    .form {
        padding: 30px 20px;
    }
}

/* 添加简单的动画 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.logout-message {
    text-align: center;
    margin: 30px 0;
}

.logout-message p {
    font-size: 18px;
    margin-bottom: 20px;
    color: #000;
}

.login-btn {
    display: inline-block;
    padding: 12px 24px;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s ease;
    margin-bottom: 10px;
}

.login-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
}