:root {
    --bg-color: #f8f9fa;
    --surface-color: #ffffff;
    --accent-color: #384ad3;
    --text-color: #1a1d20;
    --text-muted: #6c757d;
    --border-color: #dae0e5;
    --error-color: #dc3545;
    --success-color: #198754;
}

* { 
    box-sizing: border-box; 
    margin: 0; 
    padding: 0; 
    font-family: 'Courier New', Courier, monospace; 
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    padding: 40px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
}

header {
    text-align: center;
    margin-bottom: 40px;
}

header h1 {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -1px;
    text-transform: uppercase;
    color: var(--text-color);
    margin-bottom: 12px;
}

header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    font-weight: 600;
}

header .formats-list {
    margin-top: 10px;
    font-size: 1.05rem;
    color: var(--accent-color);
    font-weight: bold;
    letter-spacing: 0.5px;
}

.upload-container {
    width: 100%;
    max-width: 1200px;
    background: var(--surface-color);
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-bottom: 30px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.upload-container:hover {
    border-color: var(--accent-color);
    background: #f1f3f5;
}

.upload-container input[type="file"] {
    display: none;
}

.upload-label {
    cursor: pointer;
    display: block;
    color: var(--text-color);
    font-size: 1.1rem;
}

.btn-mode {
    display: inline-block;
    margin-top: 15px;
    padding: 10px 20px;
    background: var(--accent-color);
    color: #fff;
    border-radius: 6px;
    font-weight: bold;
    font-size: 0.95rem;
    text-transform: uppercase;
}

.progress-container {
    width: 100%;
    max-width: 1200px;
    margin-bottom: 20px;
    display: none;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: var(--border-color);
    border-radius: 3px;
    overflow: hidden;
}

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

.progress-status {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 5px;
    text-align: right;
}

.table-container {
    width: 100%;
    max-width: 1200px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    display: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

th {
    background-color: #f1f3f5;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
}

td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-color);
    max-width: 240px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

tr:last-child td { border-bottom: none; }
tr:hover td { background-color: #f8f9fa; }

.status-damaged {
    color: var(--error-color);
    font-weight: bold;
}

.status-ok {
    color: var(--success-color);
    font-weight: bold;
}