/* NoView Engine web app. Every colour, size and timing comes from the tokens below. */

:root {
  color-scheme: dark;

  /* Primitives */
  --ink-950: #0d0e12;
  --ink-900: #14161c;
  --ink-850: #1a1d24;
  --ink-800: #22262f;
  --ink-700: #2f3440;
  --ink-500: #5d6474;
  --ink-300: #a3a9b8;
  --ink-100: #e9ebf1;
  --violet-300: #b2a9ff;
  --violet-500: #5b4cf0;
  --violet-600: #4a3bd9;
  --violet-700: #3c2fbd;
  --red-300: #ff9b95;
  --red-600: #c22f28;
  --red-700: #a3241e;
  --green-300: #6ee29a;
  --amber-300: #f5c46a;

  /* Semantic (dark) */
  --color-bg: var(--ink-950);
  --color-surface: var(--ink-900);
  --color-surface-raised: var(--ink-850);
  --color-surface-hover: var(--ink-800);
  --color-border: var(--ink-700);
  --color-border-strong: var(--ink-500);
  --color-text: var(--ink-100);
  --color-text-muted: var(--ink-300);
  --color-accent-text: var(--violet-300);
  --color-action: var(--violet-500);
  --color-action-hover: var(--violet-600);
  --color-action-active: var(--violet-700);
  --color-on-action: #ffffff;
  --color-destructive: var(--red-600);
  --color-destructive-hover: var(--red-700);
  --color-on-destructive: #ffffff;
  --color-error-text: var(--red-300);
  --color-success-text: var(--green-300);
  --color-warning-text: var(--amber-300);
  --color-focus: var(--violet-300);
  --color-viewer-top: #1d2029;
  --color-viewer-bottom: #0f1015;

  /* Type: display is 2.75x the 16px body */
  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-md: 1rem;
  --text-lg: 1.25rem;
  --text-display: 2.75rem;
  --leading-tight: 1.1;
  --leading-body: 1.5;
  --weight-regular: 400;
  --weight-medium: 550;
  --weight-bold: 700;

  /* Space (4px rhythm), radii, sizes */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --control-height: 2.75rem;
  --border-width: 1px;
  --focus-width: 2px;
  --content-max: 76rem;

  /* Motion */
  --duration-fast: 120ms;
  --duration-base: 200ms;
  --ease-out: cubic-bezier(0.2, 0.8, 0.2, 1);
}

@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --color-bg: #f5f6f9;
    --color-surface: #ffffff;
    --color-surface-raised: #ffffff;
    --color-surface-hover: #eef0f5;
    --color-border: #d6dae3;
    --color-border-strong: #8a91a2;
    --color-text: #12141a;
    --color-text-muted: #545b6b;
    --color-accent-text: #4433c9;
    --color-action: #4a3bd9;
    --color-action-hover: #3c2fbd;
    --color-action-active: #31269e;
    --color-destructive: #b42318;
    --color-destructive-hover: #921c13;
    --color-error-text: #b42318;
    --color-success-text: #13703a;
    --color-warning-text: #8a5a00;
    --color-focus: #4a3bd9;
    --color-viewer-top: #eef0f6;
    --color-viewer-bottom: #dfe3ec;
  }
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --duration-fast: 0ms;
    --duration-base: 0ms;
  }
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-md);
  line-height: var(--leading-body);
}

img { max-inline-size: 100%; display: block; }

a { color: var(--color-accent-text); text-underline-offset: 0.2em; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible {
  outline: var(--focus-width) solid var(--color-focus);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute !important;
  inline-size: 1px;
  block-size: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  inset-inline-start: var(--space-4);
  inset-block-start: calc(-1 * var(--space-8));
  padding: var(--space-2) var(--space-4);
  background: var(--color-action);
  color: var(--color-on-action);
  border-radius: var(--radius-sm);
  z-index: 10;
}
.skip-link:focus { inset-block-start: var(--space-4); }

/* Top bar */
.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  max-inline-size: var(--content-max);
  margin-inline: auto;
  padding: var(--space-4) var(--space-5);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--weight-bold);
  letter-spacing: -0.01em;
}
.brand svg { inline-size: 1.5rem; block-size: 1.5rem; color: var(--color-accent-text); }

.account {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  min-inline-size: 0;
}
.account__status {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  overflow-wrap: anywhere;
}
.account__status[data-connected="true"] { color: var(--color-text); }

/* Layout */
.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
  max-inline-size: var(--content-max);
  margin-inline: auto;
  padding: var(--space-2) var(--space-5) var(--space-7);
}

@media (min-width: 60rem) {
  .layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 22rem);
    grid-template-areas: "stage panel" "history history";
    align-items: start;
  }
  .stage { grid-area: stage; }
  .panel { grid-area: panel; position: sticky; inset-block-start: var(--space-4); }
  .history { grid-area: history; }
}

/* Stage: the lead element */
/* minmax(0, 1fr): otherwise the viewer's ratio turns its content height into a minimum width. */
.stage { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-5); min-inline-size: 0; }

.display {
  margin: 0;
  font-size: var(--text-display);
  line-height: var(--leading-tight);
  letter-spacing: -0.03em;
  font-weight: var(--weight-bold);
  overflow-wrap: anywhere;
}

.lede {
  margin: var(--space-3) 0 0;
  max-inline-size: 38rem;
  color: var(--color-text-muted);
  font-size: var(--text-lg);
}

/* No fixed minimum height: with a 4:3 ratio it would force a minimum width. The box
   keeps 4:3 and grows past it when its content is taller (overflow must stay visible). */
.viewer {
  position: relative;
  display: grid;
  aspect-ratio: 4 / 3;
  min-inline-size: 0;
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--color-viewer-top), var(--color-viewer-bottom));
}

.viewer > * { grid-area: 1 / 1; }

.viewer model-viewer {
  inline-size: 100%;
  block-size: 100%;
  min-block-size: 16rem;
  border-radius: inherit;
  overflow: hidden;
  --poster-color: transparent;
  --progress-bar-color: var(--color-action);
}

.viewer__state {
  display: grid;
  place-content: center;
  justify-items: center;
  gap: var(--space-3);
  padding: var(--space-6) var(--space-5);
  text-align: center;
}
.viewer__state h2 { margin: 0; font-size: var(--text-lg); }
.viewer__state p { margin: 0; max-inline-size: 30rem; color: var(--color-text-muted); }
.viewer__state svg { inline-size: 4rem; block-size: 4rem; color: var(--color-accent-text); }
.viewer__state[data-tone="error"] svg,
.viewer__state[data-tone="error"] h2 { color: var(--color-error-text); }

.tips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  margin: var(--space-2) 0 0;
  padding: 0;
  list-style: none;
}
.tips li {
  padding: var(--space-1) var(--space-3);
  border: var(--border-width) solid var(--color-border);
  border-radius: 999px;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.progress {
  inline-size: min(22rem, 100%);
  display: grid;
  gap: var(--space-2);
}
.progress__track {
  block-size: 0.5rem;
  border-radius: 999px;
  background: var(--color-surface-hover);
  overflow: hidden;
}
.progress__bar {
  block-size: 100%;
  inline-size: 0%;
  border-radius: inherit;
  background: var(--color-action);
  transition: inline-size var(--duration-base) var(--ease-out);
}
.progress__label {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.result {
  display: grid;
  gap: var(--space-3);
}
.result__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.result__meta {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.result__note {
  margin: 0;
  min-block-size: 1.5em;
  font-size: var(--text-sm);
  color: var(--color-success-text);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-block-size: var(--control-height);
  padding: 0 var(--space-5);
  border: var(--border-width) solid transparent;
  border-radius: var(--radius-md);
  font: inherit;
  font-weight: var(--weight-medium);
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out);
}
.btn svg { inline-size: 1.125rem; block-size: 1.125rem; flex: none; }

.btn--primary { background: var(--color-action); color: var(--color-on-action); }
.btn--primary:hover { background: var(--color-action-hover); }
.btn--primary:active { background: var(--color-action-active); }

.btn--secondary {
  background: var(--color-surface-raised);
  color: var(--color-text);
  border-color: var(--color-border-strong);
}
.btn--secondary:hover { background: var(--color-surface-hover); }
.btn--secondary:active { background: var(--color-border); }

.btn--ghost { background: transparent; color: var(--color-text); border-color: var(--color-border); }
.btn--ghost:hover { background: var(--color-surface-hover); }
.btn--ghost:active { background: var(--color-border); }

.btn--destructive { background: var(--color-destructive); color: var(--color-on-destructive); }
.btn--destructive:hover { background: var(--color-destructive-hover); }

.btn--block { inline-size: 100%; }

.btn:disabled,
.btn[aria-disabled="true"] {
  cursor: not-allowed;
  background: var(--color-surface-hover);
  color: var(--color-text-muted);
  border-color: var(--color-border);
}

/* Loading keeps full strength: the control is busy, not unavailable. */
.btn[aria-busy="true"] { cursor: progress; }
.spinner {
  inline-size: 1rem;
  block-size: 1rem;
  border: 2px solid currentColor;
  border-inline-end-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation-duration: 2.4s; } }

/* Panel and form */
.panel {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-5);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  min-inline-size: 0;
}
.panel__title { margin: 0; font-size: var(--text-lg); }

form { display: grid; gap: var(--space-4); min-inline-size: 0; }

.dropzone {
  position: relative;
  display: grid;
  place-items: center;
  gap: var(--space-2);
  min-block-size: 11rem;
  padding: var(--space-4);
  border: 2px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface-raised);
  text-align: center;
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-out), background-color var(--duration-fast) var(--ease-out);
}
.dropzone:hover,
.dropzone[data-dragging="true"] { border-color: var(--color-action); background: var(--color-surface-hover); }
.dropzone:focus-within { outline: var(--focus-width) solid var(--color-focus); outline-offset: 2px; }
.dropzone[data-invalid="true"] { border-color: var(--color-error-text); }
.dropzone img { max-block-size: 12rem; border-radius: var(--radius-sm); object-fit: contain; }
.dropzone svg { inline-size: 2rem; block-size: 2rem; color: var(--color-accent-text); }
.dropzone__prompt { display: grid; gap: var(--space-1); }
.dropzone__hint { font-size: var(--text-sm); color: var(--color-text-muted); }
.dropzone__name { font-size: var(--text-sm); color: var(--color-text-muted); overflow-wrap: anywhere; }

fieldset { margin: 0; padding: 0; border: 0; min-inline-size: 0; }
legend, .field__label {
  margin-block-end: var(--space-2);
  padding: 0;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
}

.segmented {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-1);
  padding: var(--space-1);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-raised);
}
.segmented input { position: absolute; opacity: 0; pointer-events: none; }
.segmented label {
  display: grid;
  place-items: center;
  min-block-size: var(--control-height);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}
.segmented label:hover { background: var(--color-surface-hover); color: var(--color-text); }
.segmented input:focus-visible + label { outline: var(--focus-width) solid var(--color-focus); outline-offset: 1px; }
.segmented input:checked + label { background: var(--color-action); color: var(--color-on-action); }
.segmented input:disabled + label { cursor: not-allowed; opacity: 0.6; }
.field-hint { margin: var(--space-2) 0 0; font-size: var(--text-sm); color: var(--color-text-muted); }

.switch {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-block-size: var(--control-height);
  cursor: pointer;
}
.switch input {
  appearance: none;
  flex: none;
  position: relative;
  inline-size: 2.75rem;
  block-size: 1.5rem;
  margin: 0;
  border: var(--border-width) solid var(--color-border-strong);
  border-radius: 999px;
  background: var(--color-surface-hover);
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--ease-out);
}
.switch input::after {
  content: "";
  position: absolute;
  inset-block-start: 0.125rem;
  inset-inline-start: 0.125rem;
  inline-size: 1.125rem;
  block-size: 1.125rem;
  border-radius: 50%;
  background: var(--color-text-muted);
  transition: transform var(--duration-fast) var(--ease-out);
}
.switch input:checked { background: var(--color-action); border-color: var(--color-action); }
.switch input:checked::after { transform: translateX(1.25rem); background: var(--color-on-action); }
.switch input:hover { border-color: var(--color-text-muted); }
.switch input:disabled { cursor: not-allowed; opacity: 0.6; }

details.advanced {
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-md);
}
details.advanced summary {
  display: flex;
  align-items: center;
  min-block-size: var(--control-height);
  padding: 0 var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  cursor: pointer;
  border-radius: var(--radius-md);
}
details.advanced summary:hover { background: var(--color-surface-hover); }
.field-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 9rem), 1fr));
  align-items: start;
  gap: var(--space-4);
  padding: var(--space-2) var(--space-4) var(--space-4);
}

.field { display: grid; gap: var(--space-2); min-inline-size: 0; }
.field input,
.field select {
  inline-size: 100%;
  min-inline-size: 0;
  block-size: var(--control-height);
  padding: 0 var(--space-3);
  border: var(--border-width) solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-surface-raised);
  color: var(--color-text);
  font: inherit;
}
.field input:hover,
.field select:hover { border-color: var(--color-text-muted); }
.field input:focus-visible,
.field select:focus-visible { outline-offset: 0; border-color: var(--color-focus); }
.field input:disabled,
.field select:disabled { cursor: not-allowed; opacity: 0.6; }
.field input[aria-invalid="true"] { border-color: var(--color-error-text); }

.field-error {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-error-text);
}

.form-note { margin: 0; font-size: var(--text-sm); color: var(--color-text-muted); min-block-size: 1.5em; }
.form-note[data-tone="error"] { color: var(--color-error-text); }

/* History */
.history { display: grid; gap: var(--space-4); min-inline-size: 0; }
.history__head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-3); }
.history__head h2 { margin: 0; font-size: var(--text-lg); }
.history__empty {
  margin: 0;
  padding: var(--space-5);
  border: var(--border-width) dashed var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
}

.job-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 15rem), 1fr));
  gap: var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
}
.job {
  display: grid;
  grid-template-columns: 3.5rem minmax(0, 1fr);
  align-items: center;
  gap: var(--space-3);
  inline-size: 100%;
  min-block-size: 4.5rem;
  padding: var(--space-2) var(--space-3);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  font: inherit;
  text-align: start;
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-out), background-color var(--duration-fast) var(--ease-out);
}
.job:hover { background: var(--color-surface-hover); }
.job:active { background: var(--color-border); }
.job[aria-current="true"] { border-color: var(--color-action); box-shadow: inset 0 0 0 1px var(--color-action); }
.job__thumb {
  inline-size: 3.5rem;
  block-size: 3.5rem;
  border-radius: var(--radius-sm);
  background: var(--color-surface-hover);
  object-fit: cover;
}
.job__body { display: grid; gap: var(--space-1); min-inline-size: 0; }
.job__title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
}
.job__meta { display: flex; flex-wrap: wrap; gap: var(--space-2); font-size: var(--text-xs); color: var(--color-text-muted); }

.status { font-weight: var(--weight-medium); }
.status[data-status="succeeded"] { color: var(--color-success-text); }
.status[data-status="running"],
.status[data-status="queued"] { color: var(--color-warning-text); }
.status[data-status="failed"] { color: var(--color-error-text); }

/* Dialog */
dialog {
  inline-size: min(28rem, calc(100% - 2 * var(--space-4)));
  padding: var(--space-6);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  color: var(--color-text);
}
dialog::backdrop { background: rgb(0 0 0 / 0.6); }
dialog h2 { margin: 0; font-size: var(--text-lg); }
dialog p { margin: 0; color: var(--color-text-muted); }
.dialog__actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: var(--space-3); }

/* Footer */
.footer {
  max-inline-size: var(--content-max);
  margin-inline: auto;
  padding: 0 var(--space-5) var(--space-7);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.footer__inner { padding-block-start: var(--space-5); border-block-start: var(--border-width) solid var(--color-border); }
.footer p { margin: 0 0 var(--space-2); }

[hidden] { display: none !important; }