/* 登录页面样式 */
/* 使用全局CSS变量，已在variables.css中定义 */

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--amazon-blue) 0%, #37475a 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 450px;
}

.login-box {
    background: white;
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 输入框入场动画 */
@keyframes inputSlideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.input-wrapper {
    animation: inputSlideIn 0.4s ease-out forwards;
}

.login-header {
    background: linear-gradient(135deg, var(--amazon-orange) 0%, #ffad33 100%);
    color: white;
    padding: 35px 30px;
    text-align: center;
}

.logo i {
    font-size: 3.5rem;
    margin-bottom: 15px;
    display: block;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.logo p {
    font-size: 1.1rem;
    opacity: 0.9;
}

.login-form {
    padding: 35px;
}

.form-group {
    margin-bottom: 25px;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 500;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.form-group label i {
    color: var(--amazon-orange);
}

.form-control {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #ffffff;
    /* 基础可输入属性 */
    user-select: text;
    cursor: text;
    opacity: 1;
    pointer-events: auto;
    position: relative;
    z-index: 1;
}

.form-control:focus {
    outline: none;
    border-color: var(--amazon-orange);
    box-shadow: 0 4px 15px rgba(255, 153, 0, 0.2);
    transform: translateY(-2px);
    /* 确保焦点状态下可输入 */
    caret-color: var(--amazon-orange);
    user-select: text;
}

.form-control::placeholder {
    color: #adb5bd;
    font-style: italic;
    /* 确保占位符不影响输入 */
    pointer-events: none;
}

/* 密码显示切换按钮 */
.toggle-password {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 3;
    padding: 8px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    pointer-events: auto;
}

.toggle-password:hover {
    color: var(--amazon-orange);
    background: rgba(255, 153, 0, 0.2);
    transform: translateY(-50%) scale(1.15);
    box-shadow: 0 0 10px rgba(255, 153, 0, 0.3);
}

.toggle-password i {
    font-size: 1.1rem;
}



/* 密码框特殊样式 */
#password {
    padding-right: 50px;
}

/* 输入框悬停效果 */
.form-control:hover {
    border-color: #cccccc;
}

/* 输入框验证状态 */
.form-control.valid {
    border-color: var(--success-green);
    box-shadow: 0 0 0 3px rgba(0, 166, 90, 0.1);
}

.form-control.invalid {
    border-color: var(--danger-red);
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

/* 聚焦状态 */
.form-control:focus {
    outline: none;
    border-color: var(--amazon-orange);
    box-shadow: 0 0 0 3px rgba(255, 153, 0, 0.1);
}

/* 密码强度指示器 */
.password-strength {
    height: 4px;
    background: #e9ecef;
    border-radius: 2px;
    margin-top: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.password-strength-bar {
    height: 100%;
    width: 0%;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.strength-weak { background: var(--danger-red); width: 33%; }
.strength-medium { background: var(--warning-yellow); width: 66%; }
.strength-strong { background: var(--success-green); width: 100%; }

/* 响应式优化 */
@media (max-width: 480px) {
    .input-wrapper i {
        left: 12px;
        font-size: 1rem;
    }
    
    .form-control {
        padding: 14px 14px 14px 40px;
        font-size: 0.95rem;
    }
    
    .toggle-password {
        right: 12px;
        padding: 6px;
    }
    
    .input-group .form-control {
        padding-right: 45px;
    }
}

/* 输入框微交互动画 */
@keyframes subtleGlow {
    0% { box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05); }
    50% { box-shadow: 0 2px 15px rgba(255, 153, 0, 0.15); }
    100% { box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05); }
}

.form-control:focus {
    animation: subtleGlow 2s ease-in-out infinite;
    /* 确保动画不影响输入功能 */
    user-select: text;
    pointer-events: auto;
}



/* 输入框文字发光效果 */
.form-control:focus::placeholder {
    color: var(--amazon-orange);
    text-shadow: 0 0 5px rgba(255, 153, 0, 0.3);
}

.toggle-password {
    position: absolute;
    right: 15px;
    top: 58px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

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

.checkbox-group {
    margin: 30px 0;
}

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: normal;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.checkmark {
    height: 22px;
    width: 22px;
    background-color: white;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    margin-right: 12px;
    position: relative;
    transition: all 0.3s ease;
}

.checkbox-label input:checked ~ .checkmark {
    background-color: var(--amazon-orange);
    border-color: var(--amazon-orange);
}

.checkmark::after {
    content: "";
    position: absolute;
    display: none;
}

.checkbox-label input:checked ~ .checkmark::after {
    display: block;
    left: 7px;
    top: 3px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.login-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--amazon-orange) 0%, #ffad33 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.login-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 153, 0, 0.5);
}

.login-btn:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 153, 0, 0.4);
}

.login-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.login-footer {
    margin-top: 30px;
    text-align: center;
}

.login-footer p {
    color: var(--text-secondary);
    margin-bottom: 15px;
    font-size: 0.9rem;
}

/* 演示账号相关样式已移除 */

.error-message {
    background-color: #f8d7da;
    color: #721c24;
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 20px;
    border: 1px solid #f5c6cb;
    display: none;
}

.error-message.show {
    display: block;
    animation: shake 0.5s ease-in-out;
}

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

/* 用户类型说明样式 */
.user-types-info {
    margin-top: 25px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.user-types-info h4 {
    color: white;
    margin-top: 0;
    margin-bottom: 15px;
    text-align: center;
    font-size: 1.1rem;
}

.user-types-info ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.user-types-info li {
    color: rgba(255, 255, 255, 0.9);
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.95rem;
}

.user-types-info li:last-child {
    border-bottom: none;
}

.user-types-info strong {
    color: #FF9900;
}

@media (max-width: 480px) {
    .login-container {
        padding: 10px;
    }
    
    .login-box {
        border-radius: 10px;
    }
    
    .login-header {
        padding: 25px 20px;
    }
    
    .login-form {
        padding: 25px 20px;
    }
    
    .logo h1 {
        font-size: 1.5rem;
    }
}