* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #f5f5f5;
    padding: 20px;
}
.container {
    max-width: 100%;
    margin: 0 auto;
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
h1 {
    color: #25D366;
    margin-bottom: 20px;
}
.form-group {
    margin-bottom: 20px;
}
label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
}
input[type="text"] {
    width: 100%;
    padding: 12px;
    font-size: 14px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

/* Custom file input styling */
.file-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
}

#fileInput {
    position: absolute;
    width: 0.1px;
    height: 0.1px;
    opacity: 0;
    overflow: hidden;
    z-index: -1;
}

.file-input-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: #25D366;
    color: white;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.2s ease;
    border: 2px solid transparent;
    white-space: nowrap;
}

.file-input-label:hover {
    background: #20BA5A;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(37, 211, 102, 0.3);
}

.file-input-label:active {
    transform: translateY(0);
}

.file-input-icon {
    font-size: 18px;
}

.file-input-text {
    user-select: none;
}

.file-input-filename {
    color: #666;
    font-size: 14px;
    font-style: italic;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-input-filename:not(:empty) {
    color: #25D366;
    font-weight: 500;
    font-style: normal;
}
button {
    padding: 12px 24px;
    font-size: 16px;
    background: #25D366;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    display: inline-block;
}
button:hover {
    background: #20BA5A;
}
button:disabled {
    background: #ccc;
    cursor: not-allowed;
}
.loading {
    text-align: center;
    padding: 20px;
    color: #666;
    display: none;
}
.error {
    background: #fee;
    color: #c33;
    padding: 15px;
    border-radius: 4px;
    margin-top: 20px;
    display: none;
}
.results {
    margin-top: 20px;
    display: none;
}
.statistics {
    background: #f9f9f9;
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
}
.statistics h3 {
    margin-bottom: 10px;
}
.stat-item {
    margin: 8px 0;
}
.messages-table-wrapper {
    max-height: 600px;
    overflow-y: auto;
    border: 1px solid #ddd;
    border-radius: 4px;
}
.messages-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 0;
    table-layout: auto;
}
.messages-table thead {
    background: #f9f9f9;
    position: sticky;
    top: 0;
    z-index: 10;
}
.messages-table th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid #ddd;
    vertical-align: top;
}
.messages-table td {
    padding: 10px 12px;
    border-bottom: 1px solid #eee;
    word-wrap: break-word;
    overflow-wrap: break-word;
    vertical-align: top;
}
.messages-table tbody tr:hover {
    background: #f5f5f5;
}
.message-highlight {
    background: #b3d9ff;
    padding: 2px 4px;
    border-radius: 3px;
    font-weight: 600;
    color: #003366;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}
.message-highlight-warning {
    background: #ffcccc;
    padding: 2px 4px;
    border-radius: 3px;
    font-weight: 600;
    color: #cc0000;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}
.messages-table col.col-msg-date,
.messages-table .col-msg-date {
    width: 1%;
    white-space: nowrap;
    color: #666;
    font-size: 0.9em;
}
.messages-table col.col-date,
.messages-table .col-date {
    width: 1%;
    white-space: nowrap;
}
.messages-table col.col-time,
.messages-table .col-time {
    width: 1%;
    white-space: nowrap;
}
.messages-table col.col-name,
.messages-table .col-name {
    width: 100px;
    max-width: 100px;
    font-weight: 600;
    color: #25D366;
    word-wrap: break-word;
    overflow-wrap: break-word;
}
.messages-table col.col-work-date,
.messages-table .col-work-date {
    width: 1%;
    white-space: nowrap;
}
.messages-table col.col-start-time,
.messages-table .col-start-time {
    width: 1%;
    white-space: nowrap;
}
.messages-table col.col-end-time,
.messages-table .col-end-time {
    width: 1%;
    white-space: nowrap;
}
.messages-table col.col-break,
.messages-table .col-break {
    width: 1%;
    white-space: nowrap;
}
.messages-table col.col-netto,
.messages-table .col-netto {
    width: 1%;
    white-space: nowrap;
    font-weight: 600;
}
.messages-table col.col-regie,
.messages-table .col-regie {
    width: 1%;
    white-space: nowrap;
}
.messages-table col.col-regie-type,
.messages-table .col-regie-type {
    max-width: 100px;
    word-wrap: break-word;
    overflow-wrap: break-word;
}
.messages-table col.col-message,
.messages-table .col-message {
    width: auto;
    min-width: 150px;
}
#summaryTables {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
}
.summary-section {
    flex: 0 0 auto;
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    border: 1px solid #ddd;
}
.summary-section h3 {
    margin-bottom: 15px;
    color: #25D366;
    font-size: 1.3em;
    padding-bottom: 10px;
    border-bottom: 2px solid #25D366;
}
.summary-table {
    width: auto;
    border-collapse: collapse;
    border: 1px solid #ddd;
}
.summary-table th {
    background: #f9f9f9;
    font-weight: 600;
    border: 1px solid #ddd;
    border-bottom: 2px solid #25D366;
}
.summary-table td, .summary-table th {
    border: 1px solid #ddd;
    padding: 10px 12px;
}
.summary-table tbody tr:hover {
    background: #f5f5f5;
}
.summary-table tbody tr:last-child td {
    border-bottom: 1px solid #ddd;
}
.summary-table th:nth-child(3),
.summary-table td:nth-child(3) {
    max-width: 200px;
    word-wrap: break-word;
    overflow-wrap: break-word;
    white-space: normal;
}
.pill {
    display: inline-block;
    padding: 4px 10px;
    margin: 2px 4px 2px 0;
    background: #e3f2fd;
    color: #1976d2;
    border-radius: 12px;
    font-size: 0.85em;
    border: 1px solid #90caf9;
}

/* Editable table cells */
.messages-table td[contenteditable="true"] {
    cursor: text;
    min-height: 1.2em;
}

.messages-table td[contenteditable="true"]:focus {
    background-color: #e6f2ff;
    outline: 2px solid #0066cc;
    border-radius: 2px;
}

.messages-table td[contenteditable="true"]:hover:not(:focus) {
    background-color: #f0f8ff;
}

/* Editable numbers - blue color */
.messages-table .editable-number {
    color: #0066cc;
    font-weight: 500;
}

/* Mobile/Android optimizations */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    .container {
        padding: 15px;
    }
    
    h1 {
        font-size: 1.5em;
    }
    
    /* Disable contenteditable on mobile - tables are read-only */
    .messages-table td[contenteditable="true"] {
        -webkit-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
        pointer-events: none;
    }
    
    /* Make tables horizontally scrollable on mobile */
    .messages-table-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .messages-table {
        min-width: 800px;
    }
    
    /* Larger touch targets */
    button, .file-input-label {
        min-height: 44px;
        min-width: 44px;
    }
    
    /* Better spacing for filters on mobile */
    .date-filter > div {
        flex-direction: column;
        align-items: stretch !important;
    }
    
    .date-filter > div > div {
        width: 100%;
        margin-bottom: 10px;
    }
    
    input[type="date"], select {
        width: 100%;
    }
}