* {
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    margin: 0;
    background: #0f172a;
    color: #fff;
}

.hsr-header {
    text-align: center;
    padding: 16px;
    background: #020617;
}

.hsr-header h1 {
    margin: 0;
    font-size: 20px;
}

.hsr-header p {
    margin: 4px 0 0;
    font-size: 14px;
    opacity: 0.7;
}

.hsr-container {
    padding: 16px;
}

.ai-card {
    background: #1e293b;
    border-radius: 12px;
    padding: 16px;
    text-align: center;
    margin-bottom: 16px;
}

.ai-avatar {
    font-size: 48px;
    margin-bottom: 8px;
}

.upload-card {
    background: #020617;
    border: 2px dashed #334155;
    border-radius: 12px;
    padding: 16px;
    text-align: center;
    margin-bottom: 16px;
}

.upload-btn {
    display: inline-block;
    padding: 12px 16px;
    background: #2563eb;
    border-radius: 8px;
    cursor: pointer;
}

.upload-card input {
    display: none;
}

#preview img {
    width: 100%;
    max-height: 160px;
    object-fit: contain;
    margin-top: 8px;
    border-radius: 8px;
}

button {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 10px;
    background: #22c55e;
    font-size: 16px;
    cursor: pointer;
}

button:disabled {
    background: #334155;
    cursor: not-allowed;
}

.status {
    margin-top: 12px;
    text-align: center;
    opacity: 0.8;
}

.hidden {
    display: none;
}