/**
 * 登录页面样式
 */

/* 重置和全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* 登录页面容器 */
.login-page {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

/* 背景图案 */
.bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        repeating-linear-gradient(45deg, transparent, transparent 35px, rgba(255,255,255,.05) 35px, rgba(255,255,255,.05) 70px),
        repeating-linear-gradient(-45deg, transparent, transparent 35px, rgba(255,255,255,.05) 35px, rgba(255,255,255,.05) 70px);
    opacity: 0.3;
}

/* 装饰圆圈 */
.bg-circle {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    animation: pulse 4s ease-in-out infinite;
}

.bg-circle-1 {
    top: 10%;
    left: 10%;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.1);
}

.bg-circle-2 {
    bottom: 10%;
    right: 10%;
    width: 400px;
    height: 400px;
    background: rgba(167, 139, 250, 0.2);
    animation-delay: 1s;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.5;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.1);
    }
}

/* 登录容器 */
.login-container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 440px;
}

/* 登录卡片 */
.login-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    animation: slideUp 0.6s ease-out;
}

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

/* 卡片头部 */
.login-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2.5rem 2rem;
    text-align: center;
}

.login-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    backdrop-filter: blur(10px);
    animation: bounce-slow 3s ease-in-out infinite;
}

.login-icon i {
    font-size: 2.5rem;
    color: white;
}

@keyframes bounce-slow {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.login-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.login-subtitle {
    font-size: 0.95rem;
    opacity: 0.9;
}

/* 卡片主体 */
.login-body {
    padding: 2.5rem 2rem;
}

/* 错误提示 */
.alert-error {
    background: #fee;
    border-left: 4px solid #dc3545;
    color: #c82333;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: shake 0.5s ease-in-out;
}

.alert-error i {
    font-size: 1.25rem;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

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

.form-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.5rem;
}

/* 输入框容器 */
.input-wrapper {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #9ca3af;
    font-size: 1.25rem;
    pointer-events: none;
}

.form-input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #f9fafb;
}

.form-input:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.form-input::placeholder {
    color: #9ca3af;
}

/* 登录按钮 */
.login-btn {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    transition: all 0.3s ease;
    margin-top: 2rem;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

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

.login-btn i {
    font-size: 1.25rem;
}

/* 卡片底部 */
.login-footer {
    background: #f9fafb;
    padding: 1rem 2rem;
    text-align: center;
    border-top: 1px solid #e5e7eb;
    font-size: 0.9rem;
    color: #6b7280;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.login-footer i {
    color: #667eea;
    font-size: 1rem;
}

/* DMXAPI 品牌颜色 */
.dmxapi-brand {
    font-weight: 700;
    font-size: 1rem;
}

.dmx-d {
    color: #17a2b8;
}

.dmx-m {
    color: #d72f5a;
}

.dmx-x {
    color: #7d5f92;
}

/* 版权信息 */
.copyright {
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
    margin-top: 1.5rem;
}

/* 响应式设计 */
@media (max-width: 480px) {
    .login-page {
        padding: 1rem;
    }

    .login-header {
        padding: 2rem 1.5rem;
    }

    .login-body {
        padding: 2rem 1.5rem;
    }

    .login-icon {
        width: 70px;
        height: 70px;
    }

    .login-icon i {
        font-size: 2rem;
    }

    .login-title {
        font-size: 1.5rem;
    }

    .form-input {
        font-size: 0.95rem;
    }
}