:root {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-color: #e0e0e0;
    --accent-color: #4285f4;
    --secondary-color: #f44336;
    --hover-color: #2c2c2c;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
    width: 100%;
    box-sizing: border-box;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: bold;
}

.logo svg {
    width: 32px;
    height: 32px;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    margin-bottom: 20px;
}

#my-info {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.device-icon {
    width: 60px;
    height: 60px;
    background-color: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 14px;
    margin-bottom: 10px;
    color: white;
}

.device-icon.peer {
    background-color: var(--card-bg);
    border: 2px solid #555; /* 改为灰色边框，区别于自己的蓝色 */
    cursor: pointer;
    transition: transform 0.2s, border-color 0.2s;
    width: 80px;
    height: 80px;
}

.device-icon.peer:hover {
    transform: scale(1.1);
    background-color: var(--hover-color);
    border-color: #777;
}

.peers-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 40px;
    min-height: 200px;
    align-items: center;
}

.peer-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
}

.peer-name {
    margin-top: 10px;
    font-weight: 500;
}

.scanning-pulse {
    color: #666;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 0.5; }
    50% { opacity: 1; }
    100% { opacity: 0.5; }
}

/* Dialogs */
.dialog {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.hidden {
    display: none;
}

.dialog-content {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    max-width: 90%;
    width: 400px;
}

.dialog-actions {
    display: flex;
    justify-content: space-around;
    margin-top: 20px;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
    font-size: 16px;
}

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

.btn.secondary {
    background-color: var(--secondary-color);
    color: white;
}

.file-name {
    font-family: monospace;
    background: #333;
    padding: 5px;
    border-radius: 4px;
    word-break: break-all;
}

.progress-bar {
    width: 100%;
    height: 10px;
    background-color: #333;
    border-radius: 5px;
    margin: 15px 0;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background-color: var(--accent-color);
    width: 0%;
    transition: width 0.1s;
}

footer {
    text-align: center;
    color: #666;
    margin-top: auto;
    font-size: 0.8rem;
}