:root {
    --bg-color: #0c0c0e;
    --card-bg: #1a1a1d;
    --primary-color: #3b82f6;
    --text-color: #e2e8f0;
    --text-muted: #94a3b8;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
}

.container {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    width: 100%;
    max-width: 450px;
    box-sizing: border-box;
    text-align: center;
    margin: 1rem;
}

.file-input-wrapper {
    position: relative;
    overflow: hidden;
    display: inline-block;
    width: 100%;
    margin-bottom: 1rem;
}

.file-input {
    font-size: 100px;
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0;
    cursor: pointer;
}

.custom-btn {
    background-color: var(--primary-color);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    border: none;
    font-weight: 600;
    transition: background-color 0.2s;
    width: 100%;
    box-sizing: border-box;
    display: inline-block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.custom-btn:hover {
    background-color: #2563eb;
}

.custom-btn:disabled {
    background-color: #4b5563;
    cursor: not-allowed;
}

#statusInfo {
    margin: 1.5rem 0;
    text-align: left;
}

.status-label {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.progress-bar-container {
    background-color: #2d3748;
    height: 10px;
    border-radius: 5px;
    margin-top: 1rem;
    overflow: hidden;
}

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

.session-url {
    background-color: #0f172a;
    padding: 10px;
    border-radius: 4px;
    word-break: break-all;
    font-family: monospace;
    margin-top: 10px;
}

#stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 15px;
    font-size: 0.8rem;
}