/*
 * GGG-Rechner (Gerichtsgebührengesetz) - Stylesheet
 * Modern, professional, trustworthy juridical design with Austrian color highlights.
 */

:root {
  --primary: #1e3a8a;      /* Deep Federal Blue */
  --primary-light: #eff6ff;
  --primary-hover: #172554;
  --accent: #dc2626;       /* Subtle Crimson Red (Austria accent) */
  --accent-hover: #b91c1c;
  --bg: #f1f5f9;           /* Slate 100 background */
  --surface: #ffffff;
  --text-dark: #0f172a;    /* Slate 900 */
  --text-muted: #475569;   /* Slate 600 */
  --border: #cbd5e1;       /* Slate 300 */
  --border-focus: #3b82f6; /* Blue 500 */
  --radius: 8px;
  --radius-sm: 4px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);

  --success: #15803d;      /* Green 700 */
  --success-bg: #f0fdf4;
  --danger: #b91c1c;       /* Red 700 */
  --danger-bg: #fef2f2;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text-dark);
  line-height: 1.5;
  padding: 20px;
}

/* Subtle Austria flag stripe at the top of the viewport */
body::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(to right, var(--accent) 33.33%, #ffffff 33.33%, #ffffff 66.66%, var(--accent) 66.66%);
  z-index: 9999;
}

/* Layout Container */
.container {
  max-width: 1200px;
  margin: 20px auto;
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 1px solid var(--border);
}

/* Header */
.header {
  background-color: var(--primary);
  color: #ffffff;
  padding: 24px 32px;
  border-bottom: 4px solid var(--accent);
  display: flex;
  align-items: center;
  gap: 18px;
}

/* Die Bildmarke trägt denselben Blauton wie der Header; erst der helle Ring
   trennt die Scheibe vom Grund. */
.header-logo {
  flex: none;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.45);
}

.header h1 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 4px;
  letter-spacing: -0.5px;
}

.header p {
  font-size: 14px;
  color: #93c5fd;
}

/* Tab Navigation */
.tab-container {
  display: flex;
  background-color: #f8fafc;
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  background: none;
  border: none;
  padding: 16px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
  border-bottom: 3px solid transparent;
}

.tab-btn:hover {
  color: var(--primary);
  background-color: #f1f5f9;
}

.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  background-color: #ffffff;
}

/* Content Pages */
.page {
  display: none;
  padding: 32px;
}

.page.active {
  display: block;
  animation: fadeIn 0.25s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Section Header */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid #f1f5f9;
}

.section-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
}

/* Buttons */
.btn-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--primary-hover);
}

.btn-primary:disabled {
  background-color: #94a3b8;
  cursor: not-allowed;
  opacity: 0.65;
}

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

.btn-secondary:hover {
  background-color: #f8fafc;
  border-color: #94a3b8;
}

.icon-btn {
  padding: 10px;
  min-width: 42px;
  height: 42px;
  font-size: 16px;
  line-height: 1;
}

/* Funktionsfarben (Tailwind-600/700, Sättigung −20 %): blau = Laden/Sichern (I/O),
   grün = Export, rot = Löschen */
.btn-io {
  background-color: #e2e9f9;
  border-color: #3057c5;
  color: #000000;
}

.btn-io:hover {
  background-color: #e2e9f9;
  border-color: #2d48a1;
}

.btn-export {
  background-color: #deefe5;
  border-color: #207540;
  color: #ffffff;
}

.btn-export:hover {
  background-color: #deefe5;
  border-color: #1e5d36;
}

.btn-delete {
  background-color: #f7e1e1;
  border-color: #d55d5d;
  color: #ffffff;
}

.btn-delete:hover {
  background-color: #f7e1e1;
  border-color: #8c2828;
}

.btn-danger-small {
  background-color: var(--danger-bg);
  color: var(--danger);
  border: 1px solid #fca5a5;
  padding: 4px 8px;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.btn-danger-small:hover {
  background-color: var(--danger);
  color: #ffffff;
  border-color: var(--danger);
}

.btn-edit-small {
  background-color: var(--primary-light);
  color: var(--primary);
  border: 1px solid #93c5fd;
  padding: 4px 8px;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-edit-small:hover {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

/* Calculation Table Styles */
.calc-table-wrapper {
  overflow-x: auto;
  margin-bottom: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.calc-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 14px;
}

.calc-table th {
  background-color: #f8fafc;
  color: var(--text-muted);
  font-weight: 600;
  padding: 14px 16px;
  border-bottom: 2px solid var(--border);
}

/* Spaltenbreiten & -ausrichtung der Berechnungstabelle */
.calc-table .col-datum {
  width: 180px;
}

.calc-table .col-streitwert {
  width: 180px;
  text-align: right;
}

.calc-table .col-parteien {
  width: 100px;
}

.calc-table .col-vergleich {
  width: 100px;
  text-align: center;
}

.calc-table .col-gebuehr,
.calc-table .col-differenz {
  width: 150px;
  text-align: right;
}

.calc-table .col-loeschen {
  width: 80px;
  text-align: center;
}

.calc-table td {
  padding: 10px 16px;
  border-bottom: 1px solid #e2e8f0;
  vertical-align: middle;
}

.calc-table tbody tr:hover {
  background-color: #f8fafc;
}

/* Aktenzeichen & Meta Container */
.calc-meta-bar {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  margin-bottom: 16px;
  background-color: var(--surface);
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.meta-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-width: 280px;
  width: 100%;
}

.meta-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.meta-input {
  width: 100%;
  padding: 8px 12px;
  font-size: 14px;
  font-family: inherit;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background-color: #ffffff;
  transition: all 0.15s ease;
}

.meta-input:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

/* Table Form Inputs */
.calc-table input,
.calc-table select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  transition: all 0.15s ease;
  background-color: #ffffff;
}

.calc-table input:focus,
.calc-table select:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.date-text-input {
  max-width: 160px;
}

.streitwert-input {
  max-width: 160px;
  text-align: right;
}

.parteien-select {
  max-width: 80px;
}

/* Validation styling */
.is-invalid {
  border-color: var(--danger) !important;
  background-color: var(--danger-bg) !important;
}

.is-invalid:focus {
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.15) !important;
}

.is-warning {
  border-color: #f59e0b !important;
  background-color: #fef3c7 !important;
}

.is-warning:focus {
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15) !important;
}

/* Delete button */
.delete-row-btn {
  background: none;
  border: none;
  font-size: 16px;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: background 0.15s ease;
}

.delete-row-btn:hover {
  background-color: #fee2e2;
}

/* Alignments */
.text-right {
  text-align: right;
}

.text-center {
  text-align: center;
}

.font-semibold {
  font-weight: 600;
}

.text-muted {
  color: var(--text-muted);
}

/* Output values (Gebühr & Differenz) */
.gebuehr-cell {
  font-weight: 700;
  color: var(--primary);
  font-size: 15px;
  white-space: nowrap;
}

/* The fee is rendered on a button that opens the Rechenweg dialog; it should
   look like the plain cell value, with only a subtle hover/focus affordance. */
.gebuehr-btn {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  padding: 2px 6px;
  width: 100%;
  text-align: right;
  border-radius: var(--radius-sm);
}

.gebuehr-btn:not(:disabled) {
  cursor: pointer;
}

.gebuehr-btn:not(:disabled):hover,
.gebuehr-btn:not(:disabled):focus-visible {
  background-color: #e2e8f0; /* Slate 200 */
  text-decoration: underline dotted;
}

.differenz-cell {
  font-weight: 600;
  white-space: nowrap;
}

.diff-positive {
  color: var(--danger);
  background-color: var(--danger-bg);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.diff-negative {
  color: var(--success);
  background-color: var(--success-bg);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.diff-zero {
  color: var(--text-muted);
}

/* Overview & Accordion */
.overview-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

.overview-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--primary);
}

.overview-card .text-muted {
  margin-bottom: 20px;
}

.accordion-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.2s ease;
}

.accordion-item:hover {
  border-color: var(--border-focus);
  box-shadow: var(--shadow-sm);
}

.accordion-header {
  background-color: #f8fafc;
  padding: 16px 24px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  color: var(--text-dark);
  transition: background-color 0.15s ease;
  user-select: none;
}

.accordion-header:hover {
  background-color: #f1f5f9;
}

.accordion-item.active .accordion-header {
  background-color: #1e3a8a;
  color: #ffffff;
  border-bottom: 1px solid var(--border-focus);
}

.accordion-icon {
  font-size: 14px;
  transition: transform 0.2s ease;
}

.accordion-item.active .accordion-icon {
  transform: rotate(180deg);
}

.accordion-content {
  display: none;
  padding: 24px;
  background-color: #ffffff;
  font-size: 14px;
}

.accordion-item.active .accordion-content {
  display: block;
}

/* Herkunft der angezeigten Tarifdaten – bewusst zurückhaltend, fällt erst
   durch die Warnvariante auf (Server nicht erreichbar, Daten evtl. veraltet) */
.tariff-data-source {
  font-size: 12px;
  color: var(--text-muted);
  margin: -8px 0 16px;
}

.tariff-data-source.is-warning {
  color: #92400e;
  background-color: #fffbeb;
  border-left: 3px solid #d97706;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
}

/* Tarifvergleichstabelle im Akkordeon (eine Spalte je Fassung) */
.tariff-table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

/* Erste Spalte bleibt beim horizontalen Scrollen stehen, damit die
   Gebührenspalten am Handy zuordenbar bleiben. */
.tariff-compare-table .tariff-col-grenze {
  text-align: left;
  white-space: nowrap;
  position: sticky;
  left: 0;
  z-index: 1;
  background-color: #ffffff;
}

.tariff-compare-table thead .tariff-col-grenze,
.tariff-compare-table tfoot .tariff-col-grenze {
  background-color: #f8fafc;
}

.tariff-compare-table tbody tr:hover .tariff-col-grenze {
  background-color: #f8fafc;
}

.tariff-compare-table .tariff-col-fassung {
  text-align: right;
  white-space: nowrap;
}

.tariff-compare-table tbody tr:last-child td {
  border-bottom: 2px solid var(--border);
}

/* Fußzeilen: Überschreitungsformel und Quelle, etwas kleiner gesetzt */
.tariff-compare-table tfoot td {
  padding: 10px 16px;
  font-size: 12px;
  color: var(--text-muted);
  background-color: #f8fafc;
  border-bottom: 1px solid #e2e8f0;
}

.tariff-compare-table tfoot tr:last-child td {
  border-bottom: none;
}

.tariff-compare-table .tariff-row-formula td {
  font-weight: 600;
  color: var(--text-dark);
}

.tariff-note {
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-muted);
}

.tariff-note strong {
  color: var(--text-dark);
}

/* BGBl link to the legal source (tariff overview & fee-details dialog) */
.quelle-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.15s ease;
}

.quelle-link:hover {
  color: var(--accent);
  text-decoration: underline;
}

/* Hidden elements */
.hidden {
  display: none !important;
}

/* Error banner (e.g. tariff data unavailable) */
.error-banner {
  background-color: var(--danger-bg);
  color: var(--danger);
  border-bottom: 1px solid #fca5a5;
  padding: 14px 32px;
  font-size: 14px;
  line-height: 1.6;
}

.error-banner code {
  background-color: #fee2e2;
  padding: 1px 5px;
  border-radius: var(--radius-sm);
  font-size: 13px;
}

/* Footer Styling */
.app-footer {
  background-color: #f8fafc;
  border-top: 1px solid var(--border);
  padding: 16px 32px;
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
}

.app-footer a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.15s ease;
}

.app-footer a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.app-footer .license-text {
  margin-top: 4px;
  font-size: 11px;
  color: #64748b; /* Slate 500 */
}

/* Modal Dialogs (Shortcut Help & Rechenweg) */
#shortcut-help-dialog,
#fee-details-dialog {
  /* Der globale Reset (* { margin: 0 }) hebt das UA-Default `dialog { margin: auto }`
     auf, das modale Dialoge zentriert – hier explizit wiederherstellen. */
  margin: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 24px 28px;
  min-width: 340px;
  max-width: calc(100vw - 32px);
  color: var(--text-dark);
}

#shortcut-help-dialog::backdrop,
#fee-details-dialog::backdrop {
  background-color: rgba(15, 23, 42, 0.4);
}

#shortcut-help-dialog h3,
#fee-details-dialog h3 {
  margin-bottom: 16px;
  font-size: 16px;
  color: var(--primary);
}

.shortcut-table {
  border-collapse: collapse;
  width: 100%;
  font-size: 14px;
}

.shortcut-table td {
  padding: 6px 0;
  border-bottom: 1px solid #e2e8f0; /* Slate 200 */
}

.shortcut-table tr:last-child td {
  border-bottom: none;
}

.shortcut-table td:first-child {
  padding-right: 24px;
  white-space: nowrap;
}

.shortcut-table kbd {
  display: inline-block;
  background-color: #f8fafc;
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: var(--radius-sm);
  padding: 2px 7px;
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
}

#shortcut-help-dialog .dialog-footer,
#fee-details-dialog .dialog-footer {
  margin-top: 20px;
  text-align: right;
}

/* Rechenweg table inside the fee-details dialog */
.fee-details-table {
  border-collapse: collapse;
  width: 100%;
  font-size: 14px;
}

.fee-details-table td {
  padding: 6px 0;
  border-bottom: 1px solid #e2e8f0; /* Slate 200 */
}

.fee-details-table td:first-child {
  padding-right: 24px;
  color: var(--text-muted);
}

.fee-details-table td:last-child {
  text-align: right;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.fee-details-table tr:last-child td {
  border-bottom: none;
}

.fee-details-table tr.fee-details-total td {
  border-top: 2px solid var(--border);
  font-weight: 700;
  color: var(--primary);
}

.fee-details-table tr.fee-details-total td:first-child {
  color: var(--primary);
}