/* Bezirksregierung Köln — Kontierungsformular
   Clean, functional, government-style CSS */

:root {
    --primary: #003366;
    --primary-light: #004488;
    --accent: #0066aa;
    --bg: #f5f6f8;
    --bg-white: #fff;
    --text: #1a1a1a;
    --text-muted: #666;
    --border: #ccc;
    --border-light: #e0e0e0;
    --success: #2e7d32;
    --error: #c62828;
    --warning: #f57f17;
    --na: #999;
}

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

html, body { height: 100%; }
body {
    font-family: "Segoe UI", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text);
    background: var(--bg);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
main { flex: 1 0 auto; }
footer { flex-shrink: 0; }

/* HEADER */
header {
    background: var(--primary);
    color: #fff;
    padding: 16px 24px;
    border-bottom: 3px solid var(--accent);
}
header h1 { font-size: 20px; font-weight: 600; }
header .subtitle { font-size: 13px; opacity: 0.85; margin-top: 2px; }

/* NAV */
nav {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    padding: 8px 24px;
    font-size: 13px;
}
nav a { color: var(--accent); text-decoration: none; }
nav a:hover { text-decoration: underline; }
nav .nav-breadcrumb { color: var(--text-muted); margin-left: 4px; }

/* MAIN */
main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px;
}

/* FOOTER */
footer {
    background: var(--primary);
    color: #fff;
    text-align: center;
    padding: 12px;
    font-size: 12px;
    opacity: 0.9;
}

/* SECTIONS */
.step-section {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    padding: 20px;
    margin-bottom: 16px;
}
.step-section h2 {
    font-size: 16px;
    color: var(--primary);
    border-bottom: 2px solid var(--accent);
    padding-bottom: 8px;
    margin-bottom: 16px;
}

/* INFO / HINTS */
.info { font-size: 13px; color: var(--text-muted); margin-bottom: 12px; }
.hint { font-size: 12px; color: var(--text-muted); font-style: italic; margin-top: 8px; }
.warning { color: var(--error); font-weight: 600; }

/* START FORM (Dezernat + Side selection) */
.start-form .form-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}
.start-form label[for] {
    min-width: 120px;
    font-weight: 600;
}
.side-toggle {
    display: flex;
    flex-wrap: wrap;
}
.radio-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    margin-right: 24px;
    border: 1px solid var(--border);
    border-radius: 3px;
    cursor: pointer;
    background: var(--bg-white);
    transition: all 0.15s;
    font-size: 13px;
}
.radio-pill:last-child { margin-right: 0; }
.radio-pill:hover { background: var(--bg); }
.radio-pill input[type="radio"] { margin: 0; }
.radio-pill:has(input:checked) {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}
.start-form select {
    flex: 1;
    min-width: 260px;
    max-width: 420px;
}

/* VARIANT BUTTONS */
.variant-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.variant-btn {
    padding: 12px 20px;
    font-size: 14px;
    border: 2px solid var(--accent);
    background: var(--bg-white);
    color: var(--accent);
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    transition: all 0.15s;
}
.variant-btn:hover, .variant-primary {
    background: var(--accent);
    color: #fff;
}
.variant-primary:hover {
    background: var(--primary);
    border-color: var(--primary);
}

/* BUTTONS */
.btn {
    display: inline-block;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.15s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--primary); }
.btn-secondary { background: var(--border); color: var(--text); }
.btn-secondary:hover { background: #bbb; }
.btn-small { padding: 4px 12px; font-size: 12px; }

/* FORM TABLE */
.form-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 16px;
}
.form-table th, .form-table td {
    border: 1px solid var(--border-light);
    padding: 6px 10px;
    vertical-align: middle;
}
.form-table thead th {
    background: var(--primary);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.col-nr { width: 50px; text-align: center; color: var(--text-muted); font-size: 12px; }
.col-name { width: 280px; font-size: 13px; }
.col-value { min-width: 300px; }
.col-status { width: 50px; text-align: center; font-size: 16px; }

/* INPUT FIELDS */
.input-field {
    width: 100%;
    padding: 6px 8px;
    font-size: 13px;
    border: 1px solid var(--border);
    border-radius: 3px;
    background: #fff;
}
.input-field:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(0, 102, 170, 0.15);
}
.input-readonly { background: #f0f0f0; color: var(--text-muted); }
.input-number { text-align: right; font-family: "Consolas", monospace; }
.input-date { font-family: "Consolas", monospace; max-width: 180px; }
.input-error { border-color: var(--error); background: #fff5f5; }

select.input-field { cursor: pointer; }

/* FORM ROW */
.form-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}
.form-row label { font-weight: 600; min-width: 140px; }

/* VALIDATION STATUS */
.status-ok { color: var(--success); }
.status-missing { color: var(--error); font-weight: bold; }
.status-na { color: var(--na); }

/* ERROR DISPLAY */
.row-error { background: #fff5f5; }
.row-na { opacity: 0.5; }
.field-error { display: block; color: var(--error); font-size: 11px; margin-top: 2px; }
.error-banner {
    background: #fff5f5;
    border: 1px solid var(--error);
    border-left: 4px solid var(--error);
    padding: 12px 16px;
    margin-bottom: 16px;
    border-radius: 3px;
}
.error-banner ul { margin: 8px 0 0 20px; }
.error-banner li { font-size: 13px; }

/* COST BLOCKS (Mehrfach) */
.cost-block {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-left: 3px solid var(--accent);
    padding: 12px 16px;
    margin-bottom: 10px;
    border-radius: 3px;
}
.cost-block h4 { font-size: 13px; color: var(--primary); margin-bottom: 8px; }
.cost-block-hidden { display: none; }

/* OUTPUT TABLE */
.output-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}
.output-table th, .output-table td {
    border: 1px solid var(--border);
    padding: 8px 12px;
}
.output-table thead th {
    background: var(--primary);
    color: #fff;
    font-size: 12px;
}
.output-value { font-family: "Consolas", monospace; font-size: 13px; }
.row-separator td { background: #e8e8e8; font-weight: bold; font-size: 12px; }

/* EXPORT ACTIONS */
.export-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

/* FORM ACTIONS */
.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .start-form .form-row { flex-direction: column; align-items: stretch; }
    .start-form label[for] { min-width: 0; }
    main { padding: 12px; }
    .form-table { font-size: 12px; }
    .col-name { width: auto; }
}