/* 全局样式 */
:root {
    --primary-color: #4285f4;
    --secondary-color: #34a853;
    --accent-color: #fbbc05;
    --text-color: #333;
    --light-bg: #f8f9fa;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--text-color);
    background-color: #fff;
}

/* 导航栏样式 */
.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

/* 登录注册表单 */
.auth-container {
    max-width: 450px;
    margin: 2rem auto;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    background-color: white;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-form .form-control {
    padding: 0.75rem;
    margin-bottom: 1rem;
}

.auth-form .btn-primary {
    padding: 0.75rem;
    width: 100%;
    margin-top: 1rem;
}

.auth-links {
    text-align: center;
    margin-top: 1.5rem;
}

/* 相机页面样式 */
.camera-container {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
}

.camera-view {
    width: 100%;
    height: 0;
    padding-bottom: 75%; /* 4:3 宽高比 */
    position: relative;
    overflow: hidden;
    background-color: #000;
    border-radius: 8px;
}

#cameraVideo {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.camera-controls {
    display: flex;
    justify-content: center;
    margin-top: 1rem;
    gap: 1rem;
}

.highlight-area {
    position: absolute;
    border: 2px solid var(--accent-color);
    background-color: rgba(251, 188, 5, 0.2);
    pointer-events: none;
}

.result-container {
    margin-top: 2rem;
    padding: 1rem;
    border-radius: 8px;
    background-color: var(--light-bg);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .auth-container {
        margin: 1rem;
        padding: 1.5rem;
    }
}

/* 按钮样式 */
.action-btn {
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.action-btn.active {
    background-color: var(--accent-color);
    color: white;
}

/* 加载动画 */
.loading-spinner {
    display: inline-block;
    width: 2rem;
    height: 2rem;
    border: 3px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 用户个人中心 */
.profile-card {
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.1);
    background-color: white;
}

.token-display {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
}

.usage-history {
    margin-top: 2rem;
}

.usage-item {
    padding: 1rem;
    border-bottom: 1px solid #eee;
}

.usage-item:last-child {
    border-bottom: none;
}