:root {
    --primary-color: #222;
    --border-color: #ccc;
    --bg-light: #f9f9f9;
    --bg-main: #fff;
    --text-color: #222;
    --text-muted: #555;
    --modal-bg: #fff;
    --badge-bg: #eee;
    --table-header-bg: #f9f9f9;
}

@media (prefers-color-scheme: dark) {
    :root {
        --primary-color: #e0e0e0;
        --border-color: #444;
        --bg-light: #1e1e1e;
        --bg-main: #121212;
        --text-color: #e0e0e0;
        --text-muted: #aaa;
        --modal-bg: #1e1e1e;
        --badge-bg: #2a2a2a;
        --table-header-bg: #1a1a1a;
    }
}

body {
    font-family: Arial, sans-serif;
    color: var(--text-color);
    margin: 0;
    padding: 10px;
    background-color: var(--bg-main);
    line-height: 1.4;
    transition: background-color 0.3s, color 0.3s;
}

.sheet-container {
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
    padding: 10px;
    background: var(--bg-main);
    box-sizing: border-box;
}

header {
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 15px;
    margin-bottom: 20px;
}

.show-title-container {
    margin-bottom: 15px;
}

.show-title-container label {
    font-size: 0.85rem;
    font-weight: bold;
    text-transform: uppercase;
    display: block;
    margin-bottom: 4px;
    color: var(--text-muted);
}

input[type="text"],
input[type="number"],
input[type="date"],
input[type="time"],
select {
    font-size: 1rem;
    padding: 8px 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    width: 100%;
    box-sizing: border-box;
    background: var(--bg-main);
    color: var(--text-color);
}

input#showNameInput {
    font-size: clamp(1.2rem, 4vw, 1.8rem);
    font-weight: bold;
    width: 100%;
    border: none;
    border-bottom: 2px dashed var(--border-color);
    background: transparent;
    padding: 4px 0;
    outline: none;
    color: var(--text-color);
}

input#showNameInput:focus {
    border-bottom: 2px solid var(--primary-color);
}

.meta-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-top: 15px;
}

@media (max-width: 600px) {
    .meta-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    body {
        padding: 5px;
    }
    .sheet-container {
        padding: 5px;
    }
}

.meta-field label {
    font-size: 0.75rem;
    font-weight: bold;
    text-transform: uppercase;
    display: block;
    margin-bottom: 3px;
    color: var(--text-muted);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.section-header h2 {
    margin: 0;
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.header-actions {
    display: flex;
    gap: 10px;
}

.btn {
    background-color: var(--primary-color);
    color: var(--bg-main);
    border: none;
    padding: 8px 14px;
    font-size: 0.9rem;
    font-weight: bold;
    border-radius: 4px;
    cursor: pointer;
}

.btn:hover {
    opacity: 0.85;
}

.shortcut {
    text-decoration: underline;
}

/* Responsive Table Wrapper */
#tableContainer {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.input-table {
    width: 100%;
    min-width: 600px;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.input-table th, 
.input-table td {
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    text-align: left;
    font-size: 0.95rem;
    vertical-align: middle;
}

.input-table th {
    background-color: var(--table-header-bg);
    text-transform: uppercase;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.input-table th.route-th-empty {
    border: none !important;
    background: transparent !important;
    padding: 0 !important;
    width: 1%;
}

.input-table td.route-td-empty {
    border: none !important;
    background: transparent !important;
    padding: 0 !important;
}

.input-table td.ch-col {
    width: 70px;
    text-align: center;
}

.ch-input {
    width: 55px;
    text-align: center;
    font-size: 1rem;
    font-weight: bold;
    padding: 4px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-main);
    color: var(--text-color);
}

.input-table td.action-col {
    width: 40px;
    text-align: center;
}

.delete-btn {
    background: transparent;
    border: none;
    color: #e53935;
    font-weight: bold;
    cursor: pointer;
    font-size: 1rem;
}

.delete-btn:hover {
    color: #f44336;
}

.route-col {
    background-color: #333 !important;
    color: #fff !important;
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.6rem !important;
    letter-spacing: 0.05em;
    text-align: center;
    width: 1%;
    white-space: nowrap;
    padding: 0.025rem !important;
}

.route-col span {
    writing-mode: vertical-lr;
    transform: rotate(180deg);
    display: inline-block;
    padding: 0.1rem 0.01rem !important;
}

.placeholder-content {
    border: 2px dashed var(--border-color);
    padding: 40px 20px;
    text-align: center;
    color: var(--text-muted);
    font-style: italic;
    border-radius: 6px;
}

.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 15px;
    box-sizing: border-box;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--modal-bg);
    color: var(--text-color);
    padding: 25px;
    border-radius: 6px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.25);
    box-sizing: border-box;
    max-height: 90vh;
    overflow-y: auto;
}

.modal h3 {
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: bold;
    text-transform: uppercase;
    margin-bottom: 5px;
    color: var(--text-muted);
}

.form-group select {
    font-size: 1rem;
    padding: 6px 10px;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
}

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

.route-mgmt-section {
    margin-top: 15px;
    border-top: 1px solid var(--border-color);
    padding-top: 10px;
}

.route-mgmt-list {
    list-style: none;
    padding: 0;
    margin: 5px 0 0 0;
    font-size: 0.85rem;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.route-badge {
    background: var(--badge-bg);
    padding: 4px 8px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.route-badge button {
    background: none;
    border: none;
    color: #e53935;
    font-weight: bold;
    cursor: pointer;
}

@media print {
    body {
        padding: 0;
        background: #fff !important;
        color: #000 !important;
    }
    .sheet-container {
        border: none;
        padding: 0;
        max-width: 100%;
    }
    header {
        padding-bottom: 8px;
        margin-bottom: 10px;
    }
    .show-title-container {
        margin-bottom: 8px;
    }
    .shortcut {
        text-decoration: none !important;
    }
    input[type="text"],
    input[type="number"],
    input[type="date"],
    input[type="time"],
    select {
        border: none;
        border-radius: 0;
        padding: 2px 0;
        background: transparent;
        color: #000 !important;
    }
    input#showNameInput {
        border: none;
    }
    input[type="date"]::-webkit-calendar-picker-indicator,
    input[type="time"]::-webkit-calendar-picker-indicator {
        display: none !important;
        -webkit-appearance: none;
    }
    .ch-input {
        border: none !important;
        background: transparent !important;
        padding: 0 !important;
        margin: 0 !important;
        box-shadow: none !important;
        font-size: 0.85rem;
        font-weight: bold;
        text-align: center;
        color: #000 !important;
        -webkit-appearance: none !important;
        -moz-appearance: textfield !important;
    }
    .ch-input::-webkit-outer-spin-button,
    .ch-input::-webkit-inner-spin-button {
        -webkit-appearance: none !important;
        display: none !important;
        margin: 0 !important;
    }
    .no-print, .action-col, .delete-btn {
        display: none !important;
    }
    
    .input-table th, 
    .input-table td {
        border: none !important;
        padding: 3px 8px !important;
        font-size: 0.82rem;
        color: #000 !important;
    }
    .input-table th {
        border-bottom: 1px solid #000 !important;
        background-color: #eee !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
        padding: 4px 8px !important;
    }
    .input-table tbody tr:nth-child(even) td:not(.route-col) {
        background-color: #f2f2f2 !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .input-table th.route-th-empty,
    .input-table td.route-td-empty {
        border: none !important;
        background: transparent !important;
        padding: 0 !important;
    }

    /* Explicitly enforce vertical text and dark background for print */
    .route-col {
        background-color: #222 !important;
        color: #fff !important;
        font-weight: bold;
        text-transform: uppercase;
        font-size: 0.6rem !important;
        letter-spacing: 0.05em;
        text-align: center;
        width: 0.1% !important;
        white-space: nowrap;
        padding: 0.025rem !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .route-col span {
        writing-mode: vertical-lr;
        transform: rotate(180deg);
        display: inline-block;
        padding: 0.01rem 0.01rem !important;
        color: #fff !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
}