/*
 * Thème clair de l'application
 * ----------------------------
 * Modifier en priorité les variables ci-dessous pour personnaliser le site.
 */
:root {
  --color-background: #f4f7fb;
  --color-panel: #ffffff;
  --color-panel-muted: #f7f9fc;
  --color-border: #d8e1ec;
  --color-text: #12233f;
  --color-text-muted: #65758c;
  --color-primary: #087ee6;
  --color-warning: #e99a19;
  --color-danger: #c93f55;

  /* Alias conservés pour les composants historiques. */
  --bg: var(--color-background);
  --panel: var(--color-panel);
  --panel2: var(--color-panel-muted);
  --line: var(--color-border);
  --text: var(--color-text);
  --muted: var(--color-text-muted);
  --aqua: var(--color-primary);
  --amber: var(--color-warning);
  --danger: var(--color-danger);
  --radius: 10px;
  color-scheme: light;
}

/* Structure générale */
body {
  background: var(--bg);
  color: var(--text);
}
main {
  width: min(1600px, calc(100% - 36px));
}
.eyebrow {
  color: var(--aqua);
  letter-spacing: 0.15em;
}
.runtime {
  color: var(--muted);
}
.runtime span:first-child {
  box-shadow: none;
}
.runtime.ready span:first-child {
  background: #16a36a;
  box-shadow: none;
}

/* Chargement de l'image */
main {
  padding: 16px 0 30px;
}
.upload-row {
  grid-template-columns: auto minmax(0, 1fr);
  padding: 11px 13px;
  margin-bottom: 14px;
  background: var(--panel);
  border-color: var(--line);
  border-radius: var(--radius);
  box-shadow: 0 2px 10px #18375f0a;
}
.upload-row > .secondary-button {
  justify-self: end;
}
.file-button {
  background: var(--aqua);
  color: #fff;
  border-radius: 7px;
  padding: 10px 15px;
}
.secondary-button {
  border-color: var(--line);
  color: var(--text);
  border-radius: 7px;
}
.secondary-button:hover:not(:disabled) {
  border-color: var(--aqua);
  color: var(--aqua);
}
.workspace-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 350px);
  gap: 14px;
  align-items: start;
}
.visual-workspace {
  min-width: 0;
}
.comparison {
  gap: 12px;
}
.image-panel {
  background: var(--panel);
  border-color: var(--line);
  border-radius: var(--radius);
  box-shadow: 0 2px 12px #18375f0a;
}
.panel-heading {
  padding: 11px 13px;
  border-color: var(--line);
}
.panel-heading h2 {
  font-size: 0.92rem;
  color: var(--text);
}
.panel-heading span {
  color: var(--muted);
}
.canvas-stage {
  height: clamp(260px, 31vw, 485px);
  background-color: #e9eef5;
  background-image:
    linear-gradient(45deg, #dfe6ef 25%, transparent 25%),
    linear-gradient(-45deg, #dfe6ef 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #dfe6ef 75%),
    linear-gradient(-45deg, transparent 75%, #dfe6ef 75%);
}
.empty-state {
  max-width: 260px;
  padding: 12px 18px;
  border-radius: 8px;
  background: #f7f9fccc;
  color: var(--muted);
}
.empty-state p {
  margin: 0;
  font-size: 0.92rem;
}
.processing {
  background: #fffffff0;
  color: var(--aqua);
  box-shadow: 0 1px 6px #18375f20;
}

/* Réglages d'affichage et navigation */
.display-tools {
  grid-template-columns: minmax(0, 1.15fr) minmax(180px, 0.7fr) minmax(
      0,
      1.15fr
    );
  gap: 8px;
  margin-top: 8px;
}
.display-tools > .view-toolbar,
.display-tools > .display-settings:nth-of-type(3) {
  grid-column: auto;
  grid-row: auto;
}
.display-settings,
.view-toolbar {
  min-height: 0;
  background: var(--panel);
  border-color: var(--line);
  border-radius: 8px;
  box-shadow: 0 2px 10px #18375f08;
}
.display-settings {
  display: flex;
  flex-direction: column;
  padding: 12px 14px;
}
.display-settings-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 7px 14px;
  margin-bottom: 11px;
}
.display-settings-heading strong {
  font-size: 0.84rem;
  color: var(--text);
  white-space: nowrap;
}
.display-range-fields {
  grid-template-columns: minmax(100px, 132px) auto minmax(100px, 132px);
  justify-content: space-between;
  width: 100%;
  margin-top: 0;
}
.display-range-fields .field {
  min-width: 0;
}
.display-range-fields .field span {
  font-size: 0.82rem;
}
.display-range-fields input {
  width: 100%;
  padding: 10px 12px;
  font-size: 0.95rem;
}
.display-range-fields .range-arrow {
  padding: 0 5px 10px;
  font-size: 1.15rem;
}
.compact-check {
  color: var(--muted);
  font-size: 0.8rem;
}
.display-range-fields input,
.field input,
.field select,
.kernel-grid input {
  background: #fff;
  color: var(--text);
  border-color: #cbd6e3;
  border-radius: 6px;
}
.view-toolbar {
  align-items: stretch;
  justify-content: flex-start;
  padding: 11px 13px;
}
.view-toolbar-heading strong {
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text);
}
.zoom-controls {
  margin-top: 9px;
}
.zoom-controls button {
  background: #f3f6fa;
  color: var(--text);
  border-color: var(--line);
  border-radius: 6px;
  padding: 0 10px;
}
.zoom-controls input[type="range"] {
  height: 18px;
}
.zoom-controls output {
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 750;
}
.sync-label {
  color: var(--aqua);
}

/* Informations et histogrammes */
.display-validation:empty {
  display: none;
}
.analysis-strip {
  display: grid;
  grid-template-columns: minmax(190px, 0.75fr) minmax(200px, 0.8fr) minmax(
      380px,
      1.6fr
    );
  margin-top: 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 2px 12px #18375f0a;
}
.analysis-panel {
  min-width: 0;
  padding: 14px;
  border-right: 1px solid var(--line);
}
.analysis-panel:last-child {
  border-right: 0;
}
.analysis-panel h2 {
  margin: 0 0 10px;
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}
.analysis-note {
  margin: -5px 0 7px;
  color: var(--muted);
  font-size: 0.7rem;
}
.analysis-panel dl {
  margin: 0;
}
.analysis-panel dl div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 5px 0;
  border-bottom: 1px solid #edf1f6;
  font-size: 0.8rem;
  line-height: 1.35;
}
.analysis-panel dl div:last-child {
  border: 0;
}
.analysis-panel dt {
  color: var(--muted);
}
.analysis-panel dd {
  margin: 0;
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-weight: 650;
  overflow-wrap: anywhere;
}
.histograms {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.histograms figure {
  min-width: 0;
  margin: 0;
}
.histograms figcaption {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.77rem;
}
.histograms canvas {
  display: block;
  width: 100%;
  height: 100px;
  background: #f8fafc;
  border-bottom: 1px solid #c7d2df;
}

/* Panneau latéral des filtres */
.workbench {
  position: sticky;
  top: 12px;
  margin: 0;
  padding: 16px;
  background: var(--panel);
  border-color: var(--line);
  border-radius: var(--radius);
  box-shadow: 0 2px 12px #18375f0d;
}
.section-title {
  gap: 0;
}
.section-title h2 {
  font-size: 1.1rem;
}
.section-title p {
  font-size: 0.76rem;
  color: var(--muted);
}
.filter-options {
  grid-template-columns: 1fr 1fr;
  gap: 7px;
  margin: 14px 0 19px;
}
.filter-options label > span {
  justify-content: center;
  min-height: 42px;
  padding: 10px;
  background: #f6f8fb;
  border-color: var(--line);
  border-radius: 7px;
}
.filter-options b {
  font-size: 0.9rem;
}
.filter-options input:checked + span {
  border-color: var(--aqua);
  box-shadow: inset 3px 0 0 var(--aqua);
  background: #e4f2ff;
  color: #0668c5;
}
.filter-parameter-panel {
  padding-top: 18px;
  border-color: var(--line);
}
.parameter-content,
.filter-parameter-panel[data-filter="gaussian"] .parameter-content {
  grid-template-columns: 1fr;
  margin-top: 15px;
}
.parameter-section,
.filter-specific {
  grid-column: auto;
  padding: 4px 0 18px;
  border-right: 0;
  border-bottom: 1px solid var(--line);
}
.parameter-section + .parameter-section {
  padding: 18px 0;
}
.parameter-section:last-child {
  padding-bottom: 3px;
  border-bottom: 0;
}
.parameter-heading h3 {
  font-size: 0.96rem;
}
.parameter-heading p {
  display: none;
}
.inline-fields {
  margin-top: 12px;
  gap: 8px;
}
.field span {
  color: #43536a;
  font-size: 0.82rem;
}
.parameter-section .field input,
.parameter-section .field select {
  background: #fff;
}
.kernel-editor-block {
  margin: 0;
  padding: 18px 0 3px !important;
  border-top: 0;
}
.kernel-grid input {
  width: 58px;
}
.kernel-toolbar {
  margin: 11px 0;
}
.kernel-toolbar span {
  margin-left: 0;
}
.border-preview {
  margin-top: 14px;
  padding: 9px 11px;
  border: 1px solid #e1e7ef;
  border-radius: 7px;
  background: #f7f9fc;
}
.border-preview > span {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
}
.border-demo {
  margin-top: 0;
  color: var(--muted);
  font-size: 0.82rem;
}
.border-demo em {
  color: #b66c00;
}
.text-button {
  color: var(--aqua);
}
.filter-parameter-panel[data-filter="mean"]
  .parameter-content
  > .parameter-section:nth-child(2),
.filter-parameter-panel[data-filter="median"]
  .parameter-content
  > .parameter-section:nth-child(2),
.filter-parameter-panel[data-filter="convolution"]
  .parameter-content
  > .parameter-section:nth-child(2),
.filter-parameter-panel[data-filter="gaussian"] #gaussianControls {
  padding-bottom: 3px;
  border-bottom: 0;
}
.footer-actions {
  margin-top: 12px;
  padding-top: 0;
  border: 0;
}
.footer-actions > span {
  color: var(--muted);
}
.reset-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 9px 12px;
  background: #f6f8fb;
}
.reset-button svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.reset-button span {
  color: inherit;
}

/* Éditeur du noyau de convolution */
.kernel-editor-trigger {
  width: 100%;
  margin-top: 12px;
}
.kernel-inline-summary {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 0.73rem;
}
.kernel-inline-summary strong {
  color: var(--text);
}
.filter-parameter-panel[data-filter="convolution"] .kernel-editor-block {
  order: -1;
  margin: 0 0 15px;
  padding: 4px 0 15px !important;
  border-top: 0;
  border-bottom: 1px solid var(--line);
}
.kernel-dialog {
  width: min(920px, calc(100% - 32px));
  max-height: calc(100vh - 40px);
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  color: var(--text);
  box-shadow: 0 24px 70px #12233f33;
}
.kernel-dialog::backdrop {
  background: #12233f73;
  backdrop-filter: blur(2px);
}
.kernel-dialog[open] {
  display: flex;
  flex-direction: column;
}
.kernel-dialog-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--line);
}
.kernel-dialog-heading .eyebrow {
  margin-bottom: 2px;
}
.kernel-dialog-heading h2 {
  margin: 0;
  font-size: 1.25rem;
}
.dialog-close-icon {
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #f5f7fa;
  color: var(--text);
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
}
.kernel-dialog-help {
  margin: 0;
  padding: 13px 20px;
  color: var(--muted);
  font-size: 0.8rem;
}
.kernel-dialog-size {
  display: grid;
  grid-template-columns: 1fr 100px auto 100px;
  align-items: end;
  gap: 10px;
  padding: 13px 20px 12px;
}
.kernel-dialog-size-title {
  display: block;
  font-size: 0.9rem;
  font-weight: 800;
}
.kernel-dialog-size .multiply {
  padding-bottom: 10px;
}
.kernel-dialog-dimension-error {
  margin: 0 20px 8px !important;
}
.kernel-table-scroll {
  min-height: 120px;
  max-height: 58vh;
  overflow: auto;
  margin: 0 20px;
  border: 1px solid #bfcbd9;
  border-radius: 7px;
  background: #fff;
}
.kernel-table {
  border-collapse: collapse;
  margin: auto;
}
.kernel-table td {
  padding: 0;
  border: 1px solid #cbd6e3;
}
.kernel-table tr:first-child td {
  border-top: 0;
}
.kernel-table tr:last-child td {
  border-bottom: 0;
}
.kernel-table td:first-child {
  border-left: 0;
}
.kernel-table td:last-child {
  border-right: 0;
}
.kernel-table input {
  display: block;
  width: 74px;
  height: 42px;
  padding: 7px;
  border: 0;
  border-radius: 0;
  background: #fff;
  color: var(--text);
  font: inherit;
  text-align: center;
  font-variant-numeric: tabular-nums;
}
.kernel-table input:focus {
  position: relative;
  z-index: 1;
  outline: 2px solid var(--aqua);
  outline-offset: -2px;
  background: #eef7ff;
}
.kernel-dialog > .validation {
  margin: 7px 20px 0;
}
.kernel-dialog-footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 14px;
  padding: 14px 20px 18px;
}
.kernel-dialog-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.kernel-dialog-footer > span {
  color: var(--muted);
  font-size: 0.8rem;
}
.kernel-dialog-footer > span strong {
  color: var(--text);
}
.kernel-dialog-footer > .file-button {
  justify-self: end;
}
.filter-options input:focus-visible + span,
.file-button:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline-color: #087ee64d;
}

/* Adaptation aux écrans plus étroits */
@media (max-width: 1180px) {
  .workspace-layout {
    grid-template-columns: 1fr;
  }
  .workbench {
    position: static;
  }
  .filter-options {
    grid-template-columns: repeat(4, 1fr);
  }
  .parameter-content {
    grid-template-columns: 1fr 1fr;
  }
  .filter-parameter-panel[data-filter="gaussian"] .parameter-content {
    grid-template-columns: repeat(3, 1fr);
  }
  .parameter-section {
    padding: 4px 18px 4px 0;
    border-right: 1px solid var(--line);
    border-bottom: 0;
  }
  .parameter-section + .parameter-section {
    padding: 4px 18px;
  }
  .parameter-section:last-child {
    padding-right: 0;
    border-right: 0;
  }
  .kernel-editor-block {
    grid-column: 1/-1;
    padding: 16px 0 3px !important;
    border-top: 1px solid var(--line);
    border-right: 0;
  }
  .analysis-strip {
    grid-template-columns: 1fr 1fr;
  }
  .histogram-panel {
    grid-column: 1/-1;
    border-top: 1px solid var(--line);
    border-right: 0;
  }
}
@media (max-width: 850px) {
  .comparison {
    grid-template-columns: 1fr;
  }
  .canvas-stage {
    height: min(68vw, 450px);
  }
  .display-tools {
    grid-template-columns: 1fr;
  }
  .display-settings,
  .view-toolbar {
    min-height: auto;
  }
  .display-settings:nth-of-type(3) {
    grid-row: auto;
  }
  .view-toolbar {
    grid-row: auto;
  }
  .analysis-strip {
    grid-template-columns: 1fr;
  }
  .analysis-panel {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .analysis-panel:last-child {
    border-bottom: 0;
  }
  .histogram-panel {
    grid-column: auto;
  }
  .filter-options {
    grid-template-columns: 1fr 1fr;
  }
  .parameter-content,
  .filter-parameter-panel[data-filter="gaussian"] .parameter-content {
    grid-template-columns: 1fr;
  }
  .parameter-section,
  .filter-specific {
    padding: 4px 0 15px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .parameter-section + .parameter-section {
    padding: 15px 0;
  }
  .kernel-editor-block {
    padding: 15px 0 3px !important;
    border-top: 0;
  }
}
@media (max-width: 560px) {
  main {
    width: min(100% - 20px, 1600px);
  }
  .upload-row {
    grid-template-columns: 1fr;
  }
  .upload-row > .secondary-button {
    justify-self: stretch;
  }
  .display-range-fields {
    grid-template-columns: minmax(70px, 88px) auto minmax(70px, 88px);
  }
  .display-range-fields input {
    width: 100%;
  }
  .histograms {
    grid-template-columns: 1fr;
  }
  .filter-options {
    grid-template-columns: 1fr 1fr;
  }
  .workbench {
    padding: 13px;
  }
  .kernel-dialog {
    width: calc(100% - 16px);
    max-height: calc(100vh - 16px);
  }
  .kernel-dialog-heading,
  .kernel-dialog-help,
  .kernel-dialog-footer {
    padding-left: 14px;
    padding-right: 14px;
  }
  .kernel-dialog-size {
    grid-template-columns: 1fr auto 1fr;
    padding: 0 14px 12px;
  }
  .kernel-dialog-size > div {
    grid-column: 1/-1;
  }
  .kernel-dialog-dimension-error {
    margin-left: 14px !important;
    margin-right: 14px !important;
  }
  .kernel-table-scroll {
    margin: 0 14px;
  }
  .kernel-table input {
    width: 64px;
  }
  .kernel-dialog-footer {
    grid-template-columns: 1fr auto;
  }
  .kernel-dialog-footer > .file-button {
    grid-column: 1/-1;
    width: 100%;
    justify-content: center;
  }
}

/* Final alignment: one blue header surface and stronger range direction cues. */
.display-range-fields .range-arrow {
  padding: 0 6px 6px;
  font-size: 1.8rem;
  line-height: 1;
  font-weight: 900;
}