:root {
  color-scheme: light;
  --ink: #17211f;
  --muted: #66706d;
  --paper: #f7f8f4;
  --panel: #ffffff;
  --line: #d9dfd8;
  --teal: #14746f;
  --teal-dark: #0c5652;
  --copper: #c44e2e;
  --lime: #8cae33;
  --violet: #48506b;
  --code: #111716;
  --code-line: #24302e;
  --soft-teal: #e6f4f1;
  --soft-copper: #f9e8df;
  --shadow: 0 18px 45px rgba(23, 33, 31, 0.12);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  background:
    linear-gradient(180deg, rgba(20, 116, 111, 0.08), transparent 34rem),
    var(--paper);
  color: var(--ink);
}

button,
input,
select,
textarea {
  font: inherit;
  max-width: 100%;
}

button {
  cursor: pointer;
  touch-action: manipulation;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  min-height: 82px;
  padding: 1rem clamp(1rem, 3vw, 2rem);
  border-bottom: 1px solid var(--line);
  background: rgba(247, 248, 244, 0.92);
  backdrop-filter: blur(18px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  min-width: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-weight: 800;
}

.brand h1,
.brand p,
.panel-heading h2 {
  margin: 0;
}

.brand h1 {
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  line-height: 1.1;
}

.brand p {
  color: var(--muted);
  font-size: 0.92rem;
  margin-top: 0.2rem;
}

.runtime {
  display: flex;
  justify-content: flex-end;
  min-width: 10rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.target-switcher {
  display: flex;
  align-items: end;
  justify-content: flex-end;
  gap: 0.5rem;
  flex-wrap: wrap;
  min-width: min(100%, 42rem);
}

.target-switcher label {
  min-width: 9rem;
}

.target-switcher input[type="text"] {
  width: clamp(14rem, 22vw, 24rem);
}

.access-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.55rem;
  width: 100%;
  color: var(--muted);
  font-size: 0.82rem;
}

.access-links a {
  color: var(--teal-dark);
  font-weight: 800;
  text-decoration: none;
}

.access-links a:hover {
  text-decoration: underline;
}

.app-shell {
  display: grid;
  grid-template-columns: 12rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem max(1rem, env(safe-area-inset-right)) 1rem max(1rem, env(safe-area-inset-left));
  max-width: 1720px;
  margin: 0 auto;
}

.mode-rail {
  position: sticky;
  top: 98px;
  align-self: start;
  display: grid;
  gap: 0.5rem;
  padding: 0.6rem;
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.mode-rail,
.tab-list,
.folder-places,
.file-list,
.stage-list,
.layer-list,
.histogram,
.artifact-output,
textarea {
  -webkit-overflow-scrolling: touch;
}

.mode-button {
  display: grid;
  grid-template-columns: 2.1rem 1fr;
  align-items: center;
  gap: 0.6rem;
  width: 100%;
  min-height: 44px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: var(--ink);
  text-align: left;
}

.mode-button:hover,
.mode-button.active {
  border-color: rgba(20, 116, 111, 0.28);
  background: var(--soft-teal);
}

.mode-icon {
  display: grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 7px;
  background: #eef1e8;
  color: var(--teal-dark);
  font-size: 0.78rem;
  font-weight: 800;
}

.workspace {
  display: grid;
  gap: 1rem;
  min-width: 0;
}

.hidden {
  display: none;
}

body.auth-pending .topbar,
body.auth-pending .app-shell,
body.auth-required .topbar,
body.auth-required .app-shell {
  display: none;
}

.login-gate {
  display: none;
  min-height: 100vh;
  min-height: 100dvh;
  place-items: center;
  padding: max(1rem, env(safe-area-inset-top)) max(1rem, env(safe-area-inset-right))
    max(1rem, env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left));
}

body.auth-required .login-gate {
  display: grid;
}

.login-card {
  display: grid;
  gap: 1rem;
  width: min(100%, 24rem);
  max-width: 100%;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  min-width: 0;
}

.login-brand > div,
.login-card label {
  min-width: 0;
}

.login-brand h2,
.login-brand p,
.login-message {
  margin: 0;
}

.login-brand h2 {
  font-size: 1.2rem;
  line-height: 1.1;
}

.login-brand p {
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.login-card input,
.login-card button {
  display: block;
  width: 100%;
  min-width: 0;
  inline-size: 100%;
  max-inline-size: 100%;
}

.login-message {
  min-height: 1.2rem;
  color: var(--copper);
  font-size: 0.84rem;
  font-weight: 800;
}

.controls-strip {
  display: flex;
  align-items: end;
  gap: 0.7rem;
  flex-wrap: wrap;
  padding: 0.85rem;
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 700;
}

input,
select {
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  color: var(--ink);
  padding: 0 0.7rem;
}

input[type="text"] {
  width: min(42vw, 42rem);
}

.path-picker-field {
  display: flex;
  align-items: end;
  gap: 0.5rem;
  width: min(100%, 46rem);
}

.path-picker-field label {
  flex: 1;
  min-width: 18rem;
}

.path-picker-field input[type="text"] {
  width: 100%;
}

input[type="number"] {
  width: 10rem;
}

.check-row {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  min-height: 40px;
}

.check-row input {
  min-height: auto;
  width: 18px;
  height: 18px;
}

.primary-button,
.secondary-button,
.text-button {
  min-height: 40px;
  border-radius: 7px;
  padding: 0 0.9rem;
  font-weight: 800;
}

.primary-button {
  border: 1px solid var(--teal-dark);
  background: var(--teal);
  color: #fff;
}

.primary-button:hover {
  background: var(--teal-dark);
}

.secondary-button {
  border: 1px solid var(--line);
  background: #f3f5f0;
  color: var(--ink);
}

.text-button {
  border: 1px solid transparent;
  background: transparent;
  color: var(--teal-dark);
}

.main-grid {
  display: grid;
  grid-template-columns: minmax(12rem, 17rem) minmax(26rem, 1.05fr) minmax(24rem, 0.95fr);
  gap: 1rem;
  align-items: stretch;
}

.save-grid,
.process-layout {
  display: grid;
  grid-template-columns: minmax(25rem, 1fr) minmax(24rem, 1fr);
  gap: 1rem;
}

.file-panel,
.editor-panel,
.inspector-panel,
.result-tabs {
  min-width: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.file-panel,
.editor-panel,
.inspector-panel {
  overflow: hidden;
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  min-height: 52px;
  padding: 0.8rem 0.9rem;
  border-bottom: 1px solid var(--line);
}

.panel-heading h2 {
  font-size: 0.95rem;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.tiny-label {
  color: var(--muted);
  font-size: 0.75rem;
  white-space: nowrap;
}

.file-list {
  max-height: 560px;
  overflow: auto;
  padding: 0.5rem;
}

.file-item {
  display: grid;
  gap: 0.25rem;
  width: 100%;
  min-height: 48px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: var(--ink);
  padding: 0.55rem 0.6rem;
  text-align: left;
}

.file-item:hover,
.file-item.active {
  border-color: rgba(196, 78, 46, 0.24);
  background: var(--soft-copper);
}

.file-item small {
  color: var(--muted);
  overflow-wrap: anywhere;
}

textarea {
  display: block;
  width: 100%;
  height: 560px;
  min-height: 360px;
  resize: vertical;
  overflow: auto;
  border: 0;
  outline: 0;
  padding: 1rem;
  background: var(--code);
  color: #d9eee8;
  line-height: 1.48;
  tab-size: 2;
  font-family:
    "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.9rem;
}

#pipelineCanvas {
  display: block;
  width: 100%;
  height: 220px;
  background: linear-gradient(135deg, #fbfcf8, #eef5f0);
  border-bottom: 1px solid var(--line);
}

.stage-list,
.layer-list {
  display: grid;
  gap: 0.55rem;
  padding: 0.8rem;
  max-height: 340px;
  overflow: auto;
}

.stage-item,
.layer-item,
.histogram-row {
  display: grid;
  gap: 0.3rem;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 0.7rem;
  background: #fbfcf9;
}

.stage-item strong,
.layer-item strong {
  font-size: 0.88rem;
}

.stage-meta,
.layer-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.ok {
  color: var(--teal-dark);
}

.bad {
  color: var(--copper);
}

.result-tabs {
  overflow: hidden;
}

.tab-list {
  display: flex;
  gap: 0.35rem;
  overflow-x: auto;
  padding: 0.55rem;
  border-bottom: 1px solid var(--line);
  background: #fbfcf9;
}

.artifact-tab,
.save-tab,
.process-tab {
  min-height: 36px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: var(--muted);
  padding: 0 0.75rem;
  white-space: nowrap;
  font-weight: 800;
}

.artifact-tab.active,
.save-tab.active,
.process-tab.active {
  border-color: rgba(20, 116, 111, 0.25);
  background: var(--soft-teal);
  color: var(--ink);
}

.artifact-output {
  min-height: 310px;
  max-height: 560px;
  margin: 0;
  overflow: auto;
  padding: 1rem;
  background: var(--code);
  color: #dce9e5;
  line-height: 1.5;
  font-family:
    "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.84rem;
}

.histogram {
  display: grid;
  gap: 0.45rem;
  padding: 0 0.8rem 0.8rem;
  max-height: 320px;
  overflow: auto;
}

.histogram-row {
  grid-template-columns: minmax(7rem, 1fr) 6rem;
  align-items: center;
}

.bar {
  height: 8px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--teal), var(--lime));
}

.folder-dialog {
  width: min(58rem, calc(100vw - 2rem));
  max-height: calc(100vh - 2rem);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0;
  color: var(--ink);
  box-shadow: var(--shadow);
}

.folder-dialog::backdrop {
  background: rgba(17, 23, 22, 0.42);
}

.folder-dialog-inner {
  display: grid;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--panel);
}

.folder-dialog-heading,
.folder-path-row,
.folder-dialog-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.folder-dialog-heading {
  justify-content: space-between;
}

.folder-dialog-heading h2,
.folder-dialog-heading p {
  margin: 0;
}

.folder-dialog-heading h2 {
  font-size: 1rem;
}

.folder-dialog-heading p {
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.folder-path-row input {
  flex: 1;
  min-width: 0;
  width: auto;
}

.folder-places {
  display: flex;
  gap: 0.4rem;
  overflow-x: auto;
  padding-bottom: 0.1rem;
}

.folder-place {
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #f3f5f0;
  color: var(--ink);
  padding: 0 0.75rem;
  font-weight: 800;
  white-space: nowrap;
}

.folder-place.active {
  border-color: rgba(20, 116, 111, 0.25);
  background: var(--soft-teal);
}

.folder-entries {
  display: grid;
  gap: 0.4rem;
  max-height: min(54vh, 30rem);
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.5rem;
  background: #fbfcf9;
}

.folder-entry {
  display: grid;
  gap: 0.2rem;
  width: 100%;
  min-height: 48px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: var(--ink);
  padding: 0.55rem 0.65rem;
  text-align: left;
}

.folder-entry:hover {
  border-color: rgba(20, 116, 111, 0.25);
  background: var(--soft-teal);
}

.folder-entry small,
.folder-empty {
  color: var(--muted);
  font-size: 0.8rem;
  overflow-wrap: anywhere;
}

.folder-empty {
  padding: 0.8rem;
}

.folder-dialog-actions {
  justify-content: flex-end;
}

@media (max-width: 1180px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .mode-rail {
    position: static;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .main-grid,
  .save-grid,
  .process-layout {
    grid-template-columns: 1fr;
  }

  textarea {
    min-height: 420px;
  }
}

@media (max-width: 720px) {
  body {
    background:
      linear-gradient(180deg, rgba(20, 116, 111, 0.07), transparent 18rem),
      var(--paper);
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
    position: static;
    min-height: 0;
    gap: 0.75rem;
    padding: 0.75rem max(0.75rem, env(safe-area-inset-right)) 0.85rem max(0.75rem, env(safe-area-inset-left));
  }

  .brand {
    gap: 0.65rem;
    width: 100%;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
    flex: 0 0 auto;
  }

  .brand h1 {
    font-size: 1.15rem;
  }

  .brand p {
    font-size: 0.82rem;
    line-height: 1.3;
    max-width: 22rem;
  }

  .runtime {
    justify-content: flex-start;
    min-width: 0;
    width: 100%;
    font-size: 0.82rem;
  }

  .target-switcher {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
    align-items: end;
  }

  .target-switcher label {
    min-width: 0;
  }

  .target-switcher label:first-child,
  .target-switcher label:nth-child(2),
  .target-switcher input[type="text"] {
    width: 100%;
  }

  .target-switcher label:nth-child(2) {
    grid-column: 1 / -1;
  }

  .access-links {
    justify-content: flex-start;
    align-items: flex-start;
    flex-direction: column;
  }

  .app-shell {
    gap: 0.75rem;
    padding: 0 0.65rem max(1rem, env(safe-area-inset-bottom));
  }

  .mode-rail {
    display: flex;
    gap: 0.45rem;
    overflow-x: auto;
    position: sticky;
    top: 0;
    z-index: 9;
    margin: 0 -0.65rem;
    padding: 0.5rem max(0.65rem, env(safe-area-inset-right)) 0.5rem max(0.65rem, env(safe-area-inset-left));
    border-inline: 0;
    border-radius: 0;
    box-shadow: 0 10px 22px rgba(23, 33, 31, 0.08);
  }

  .mode-button {
    flex: 0 0 auto;
    grid-template-columns: 1.8rem max-content;
    width: auto;
    min-width: 8.1rem;
    min-height: 42px;
    padding: 0 0.65rem;
  }

  .mode-icon {
    width: 1.8rem;
    height: 1.8rem;
    font-size: 0.72rem;
  }

  .workspace {
    gap: 0.75rem;
  }

  .controls-strip {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.6rem;
    padding: 0.7rem;
    box-shadow: 0 10px 24px rgba(23, 33, 31, 0.08);
  }

  .path-picker-field {
    display: grid;
    width: 100%;
  }

  .path-picker-field label {
    min-width: 0;
  }

  input[type="text"],
  input[type="number"],
  select,
  .primary-button,
  .secondary-button {
    width: 100%;
  }

  input,
  select,
  textarea {
    font-size: 16px;
  }

  input,
  select,
  .primary-button,
  .secondary-button,
  .text-button {
    min-height: 44px;
  }

  .main-grid,
  .save-grid,
  .process-layout {
    gap: 0.75rem;
  }

  .panel-heading {
    min-height: 46px;
    padding: 0.65rem 0.75rem;
  }

  .file-list,
  .stage-list,
  .layer-list,
  .histogram,
  .artifact-output {
    max-height: none;
  }

  .file-list,
  .stage-list,
  .layer-list {
    overflow: visible;
    padding: 0.55rem;
  }

  .histogram {
    overflow: visible;
    padding: 0 0.55rem 0.55rem;
  }

  textarea {
    height: clamp(18rem, 52dvh, 32rem);
    min-height: 18rem;
    padding: 0.8rem;
    line-height: 1.45;
  }

  #pipelineCanvas {
    height: 170px;
  }

  .artifact-output {
    min-height: 16rem;
    overflow-x: auto;
    overflow-y: visible;
    padding: 0.8rem;
    font-size: 0.82rem;
  }

  .tab-list {
    padding: 0.45rem;
  }

  .artifact-tab,
  .save-tab,
  .process-tab {
    min-height: 40px;
    padding: 0 0.65rem;
  }

  .histogram-row {
    grid-template-columns: minmax(0, 1fr) 5.5rem;
  }

  .folder-dialog {
    width: calc(100vw - 0.75rem);
    max-height: calc(100dvh - 0.75rem);
  }

  .folder-dialog-inner {
    max-height: calc(100dvh - 0.75rem);
    overflow: auto;
    padding: 0.75rem;
  }

  .folder-dialog-heading,
  .folder-path-row {
    display: grid;
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .folder-dialog-actions {
    justify-content: stretch;
  }

  .folder-dialog-actions .primary-button {
    width: 100%;
  }
}