:root {
    --bg-color: #022c22;
    --card-bg: #064e3b;
    --accent-color: #10b981;
    --accent-hover: #059669;
    --text-primary: #ecfdf5;
    --text-secondary: #a7f3d0;
    --border-color: rgba(16, 185, 129, 0.2);
    --danger-color: #ef4444;
    --warning-color: #f97316;
    --success-color: #10b981;
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
    --transition-speed: 0.3s;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    padding: 20px;
}

.setup-container {
    max-width: 1400px;
    margin: 0 auto;
    background: var(--card-bg);
    border-radius: 20px;
    padding: 30px;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.window-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
    margin-bottom: 20px;
}

/* Tabs */
.settings-tabs {
    display: flex;
    gap: 5px;
    margin-bottom: 30px;
    background: rgba(0, 0, 0, 0.2);
    padding: 5px;
    border-radius: 12px;
}

.tab-btn {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 12px;
    cursor: pointer;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
    background: var(--accent-color);
    color: #064e3b;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

/* Buttons */
.primary-btn, .secondary-btn {
    border: none;
    border-radius: 8px;
    padding: 10px 20px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.primary-btn {
    background-color: var(--accent-color);
    color: #064e3b;
}

.primary-btn:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
}

.secondary-btn {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--accent-color);
    border: 1px solid var(--border-color);
}

/* Inputs */
.doc-input {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px;
    color: white;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 15px;
}

.input-group label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Weichen Special */
.weichen-diagram-container {
    width: 100%;
    background: white;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 25px;
    display: flex;
    justify-content: center;
    border: 1px solid var(--border-color);
}

.weichen-diagram {
    max-width: 100%;
    height: auto;
    max-height: 400px;
}

.weichen-master-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 30px;
    background: rgba(0, 0, 0, 0.1);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.weichen-form-scroll {
    overflow-x: auto;
    margin-bottom: 30px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.weichen-measure-grid {
    width: 100%;
    border-collapse: collapse;
    background: transparent;
    font-size: 0.85rem;
    min-width: 1000px;
}

.weichen-measure-grid th, .weichen-measure-grid td {
    border: 1px solid var(--border-color);
    padding: 8px;
    text-align: center;
}

.weichen-measure-grid th {
    background: rgba(0, 0, 0, 0.4);
    color: var(--accent-color);
}

.weichen-measure-grid td {
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-primary);
}

.weichen-measure-grid tr:hover td {
    background: rgba(16, 185, 129, 0.08);
}

.weichen-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid transparent;
    color: white;
    text-align: center;
    padding: 4px 2px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Hide Spin Buttons */
.weichen-input::-webkit-outer-spin-button,
.weichen-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.weichen-input[type=number] {
    -moz-appearance: textfield;
}

.history-row {
    background: rgba(16, 185, 129, 0.05);
    color: var(--text-secondary);
    font-style: italic;
}

.history-input {
    opacity: 0.7;
    background: transparent !important;
    pointer-events: none;
}

.tol-error {
    background: rgba(239, 68, 68, 0.2) !important;
    border-color: var(--danger-color) !important;
    color: #fca5a5 !important;
}

.delta-display {
    display: block;
    font-size: 0.7rem;
    margin-top: 2px;
    font-weight: bold;
}

.delta-up, .delta-down { color: #fca5a5; }
.delta-same { color: var(--text-secondary); opacity: 0.6; }

/* Checklist */
.checklist-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

.checklist-table th {
    text-align: left;
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
    color: var(--accent-color);
}

.checklist-table td {
    padding: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.fk-selector {
    width: 100%;
    padding: 8px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: rgba(0,0,0,0.2);
    color: white;
}

.fk-1 { background: var(--danger-color) !important; color: white !important; }
.fk-2 { background: var(--warning-color) !important; color: white !important; }
.fk-3 { background: #eab308 !important; color: black !important; }
.fk-4 { background: var(--accent-color) !important; color: #064e3b !important; }

/* Signature */
.signature-container {
    background: white;
    border-radius: 8px;
    height: 150px;
    margin-top: 15px;
    border: 1px solid var(--border-color);
}

#signatureCanvas {
    width: 100%;
    height: 100%;
    cursor: crosshair;
}

.io-text { color: var(--accent-color); font-weight: bold; }
.nio-text { color: var(--danger-color); font-weight: bold; }

.status-cell {
    display: flex;
    gap: 15px;
}

.status-label {
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
}

.small-btn {
    padding: 5px 10px;
    font-size: 0.8rem;
}