/**
 * Vomo Auth - Google Material Design CSS
 * 严格遵循Google Material Design规范
 */

/* 基础变量 */
:root {
    --vomo-google-blue: #4285f4;
    --vomo-google-blue-dark: #3367d6;
    --vomo-google-blue-light: #8ab4f8;
    --vomo-google-white: #ffffff;
    --vomo-google-gray: #5f6368;
    --vomo-google-gray-light: #f8f9fa;
    --vomo-google-green: #34a853;
    --vomo-google-red: #ea4335;
    --vomo-google-yellow: #fbbc04;
    
    /* Material Design阴影 */
    --md-shadow-1: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --md-shadow-2: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
    --md-shadow-3: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
    
    /* Material Design动画 */
    --md-transition: all 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
    --md-ripple-duration: 0.6s;
}

/* 容器样式 */
.vomo-auth-container {
    display: inline-block;
    position: relative;
    margin: 8px 0;
}

/* Google登录按钮 - Material Design 2.0 */
.vomo-google-login-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--vomo-google-white);
    border: 1px solid #dadce0;
    border-radius: 4px;
    color: #3c4043;
    cursor: pointer;
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: 14px;
    font-weight: 500;
    height: 40px;
    letter-spacing: 0.25px;
    line-height: 16px;
    min-width: 240px;
    padding: 0 12px;
    position: relative;
    text-align: center;
    text-decoration: none;
    transition: var(--md-transition);
    user-select: none;
    vertical-align: middle;
    white-space: nowrap;
    overflow: hidden;
    box-shadow: var(--md-shadow-1);
}

.vomo-google-login-btn:hover {
    background: var(--vomo-google-gray-light);
    border-color: #d2e3fc;
    box-shadow: var(--md-shadow-2);
    transform: translateY(-1px);
}

.vomo-google-login-btn:active {
    background: #e8f0fe;
    border-color: var(--vomo-google-blue);
    box-shadow: var(--md-shadow-1);
    transform: translateY(0);
}

.vomo-google-login-btn:focus {
    outline: none;
    border-color: var(--vomo-google-blue);
    box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.3);
}

/* Dashboard按钮 */
.vomo-dashboard-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--vomo-google-blue);
    border: none;
    border-radius: 4px;
    color: var(--vomo-google-white);
    cursor: pointer;
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: 14px;
    font-weight: 500;
    height: 40px;
    letter-spacing: 0.25px;
    line-height: 16px;
    min-width: 240px;
    padding: 0 12px;
    position: relative;
    text-align: center;
    text-decoration: none;
    transition: var(--md-transition);
    user-select: none;
    vertical-align: middle;
    white-space: nowrap;
    overflow: hidden;
    box-shadow: var(--md-shadow-1);
}

.vomo-dashboard-btn:hover {
    background: var(--vomo-google-blue-dark);
    box-shadow: var(--md-shadow-2);
    transform: translateY(-1px);
}

.vomo-dashboard-btn:active {
    background: var(--vomo-google-blue);
    box-shadow: var(--md-shadow-1);
    transform: translateY(0);
}

.vomo-dashboard-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.3);
}

/* 按钮图标 */
.vomo-btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    margin-right: 8px;
    flex-shrink: 0;
}

.vomo-btn-text {
    flex: 1;
    text-align: center;
}

/* Material Design波纹效果 */
.vomo-google-login-btn::before,
.vomo-dashboard-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width var(--md-ripple-duration), height var(--md-ripple-duration);
    pointer-events: none;
}

.vomo-google-login-btn:active::before,
.vomo-dashboard-btn:active::before {
    width: 300px;
    height: 300px;
}

/* 登录页面特定样式 */
.login .vomo-auth-container {
    margin: 16px 0;
    text-align: center;
}

.login .vomo-google-login-btn,
.login .vomo-dashboard-btn {
    width: 100%;
    max-width: 320px;
}

/* 首页按钮样式 */
.home .vomo-auth-container {
    margin: 24px 0;
}

/* 短代码容器 */
.vomo-auth-shortcode {
    display: inline-block;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .vomo-google-login-btn,
    .vomo-dashboard-btn {
        min-width: 200px;
        font-size: 14px;
        height: 36px;
        padding: 0 8px;
    }
    
    .vomo-btn-icon {
        width: 16px;
        height: 16px;
        margin-right: 6px;
    }
}

@media (max-width: 480px) {
    .vomo-google-login-btn,
    .vomo-dashboard-btn {
        min-width: 180px;
        font-size: 13px;
        height: 32px;
        padding: 0 6px;
    }
    
    .vomo-btn-icon {
        width: 14px;
        height: 14px;
        margin-right: 4px;
    }
}

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

.vomo-auth-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    margin: -8px 0 0 -8px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: vomo-spin 1s linear infinite;
}

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

/* 错误状态 */
.vomo-auth-error {
    background: #f8d7da !important;
    border-color: #f5c6cb !important;
    color: #721c24 !important;
}

/* 成功状态 */
.vomo-auth-success {
    background: #d4edda !important;
    border-color: #c3e6cb !important;
    color: #155724 !important;
}

/* 无障碍访问 */
@media (prefers-reduced-motion: reduce) {
    .vomo-google-login-btn,
    .vomo-dashboard-btn {
        transition: none;
    }
    
    .vomo-google-login-btn::before,
    .vomo-dashboard-btn::before {
        display: none;
    }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
    .vomo-google-login-btn {
        border-width: 2px;
    }
    
    .vomo-google-login-btn:focus,
    .vomo-dashboard-btn:focus {
        outline: 2px solid var(--vomo-google-blue);
        outline-offset: 2px;
    }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    .vomo-google-login-btn {
        background: #1f1f1f;
        border-color: #5f6368;
        color: #e8eaed;
    }
    
    .vomo-google-login-btn:hover {
        background: #2d2d2d;
        border-color: #8ab4f8;
    }
    
    .vomo-google-login-btn:active {
        background: #3c4043;
    }
}