/* RULO3D-skinned styles for the Adaptive Feed Post-Processor.
 * Monochrome: ink black + paper white + the topographic gray ramp.
 * Structure comes from hairline borders first, soft shadows second.
 * All colours reference the RULO3D design tokens (var(--rulo-* / --*)). */

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

/* App-level tokens (theme-aware). Dark mode inverts the monochrome ramp:
   ink surfaces, paper text — still strictly grayscale. */
:root {
  --hover-fill: var(--rulo-ink-50);
  --track: var(--rulo-ink-100);
  --danger-text: var(--rulo-danger);
  --danger-hover: #f7ecec;
  --ok-text: var(--rulo-success);
  --warn-text: var(--rulo-warning);
  --err-text: var(--rulo-danger);
  --preview-ink: #141414;
  --preview-stress: #9a6a16;
  --preview-muted: #6f6f6f;
}
[data-theme="dark"] {
  --text-strong: #f4f4f4;
  --text-body: #e2e2e2;
  --text-muted: #adadad;
  --text-subtle: #808080;
  --text-inverse: #141414;
  --surface-page: #141414;
  --surface-wash: #1f1f1f;
  --surface-card: #1c1c1c;
  --surface-sunken: #0e0e0e;
  --surface-inverse: #f4f4f4;
  --border-subtle: #2b2b2b;
  --border-default: #3d3d3d;
  --border-strong: #6f6f6f;
  --accent: #f4f4f4;
  --accent-hover: #d4d4d4;
  --accent-press: #b0b0b0;
  --accent-contrast: #141414;
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.45);
  --shadow-focus: 0 0 0 3px rgba(244, 244, 244, 0.28);
  --hover-fill: #2b2b2b;
  --track: #2b2b2b;
  --danger-text: #e0857f;
  --danger-hover: #35211f;
  --ok-text: #58a883;
  --warn-text: #d8a53f;
  --err-text: #e0857f;
  --preview-ink: #f4f4f4;
  --preview-stress: #d8a53f;
  --preview-muted: #adadad;
}

html, body { background: var(--surface-page); }
body, .brandbar, .card, main, #stock-canvas, input, select, textarea, button, .badge, #dropzone, .file-item {
  transition: background-color var(--duration-base) var(--ease-out), border-color var(--duration-base) var(--ease-out), color var(--duration-base) var(--ease-out);
}

body {
  margin: 0;
  font-family: "Montserrat", system-ui, sans-serif;
  background: var(--surface-page);
  color: var(--text-body);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: var(--text-strong); text-decoration: none; }
a:hover { color: var(--text-muted); text-decoration: underline; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
}

/* ---------------- Brand bar ---------------- */
.brandbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 32px;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--surface-page);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: saturate(1.1) blur(6px);
}
.brand-lockup { display: flex; align-items: center; gap: 12px; }
.brand-lockup img { width: 34px; height: 34px; display: block; }
[data-theme="dark"] .brand-lockup img,
[data-theme="dark"] .foot-credit img { filter: invert(1); }
.brand-word {
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 0.02em;
  color: var(--text-strong);
  line-height: 1;
}
.brand-sub {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-subtle);
  margin-top: 3px;
}

/* Segmented control (language + colormap) + icon button */
.header-controls { display: flex; align-items: center; gap: 10px; }
.icon-btn {
  width: 38px; height: 38px;
  padding: 0;
  display: grid; place-items: center;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-pill);
  background: var(--surface-page);
  color: var(--text-strong);
  cursor: pointer;
}
.icon-btn:hover:not(:disabled) { background: var(--hover-fill); }
.icon-btn svg { width: 18px; height: 18px; }
.icon-btn .icon-sun { display: none; }
[data-theme="dark"] .icon-btn .icon-sun { display: block; }
[data-theme="dark"] .icon-btn .icon-moon { display: none; }
.segmented {
  display: inline-flex;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-pill);
  padding: 2px;
  gap: 2px;
  background: var(--surface-page);
}
.segmented button {
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-family: inherit;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.04em;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}
.segmented button:hover { color: var(--text-strong); }
.segmented button.lang-active {
  background: var(--accent);
  color: var(--accent-contrast);
}

/* ---------------- Title + steps ---------------- */
.intro {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 28px 32px 6px;
}
.intro h1 {
  margin: 8px 0 6px;
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text-strong);
  line-height: 1.1;
}
.tagline {
  margin: 0;
  color: var(--text-muted);
  max-width: 760px;
  font-size: 15px;
}
.badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border-default);
  color: var(--text-body);
  background: var(--surface-page);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 12.5px;
  font-weight: 500;
}
.badge svg { width: 15px; height: 15px; stroke-width: 2; }

.steps {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 18px 32px 4px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.steps-lead {
  grid-column: 1 / -1;
  margin: 0 0 -4px;
}
.step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--surface-wash);
}
.step-num {
  flex: none;
  width: 30px; height: 30px;
  border-radius: var(--radius-pill);
  border: var(--border-thick) solid var(--text-strong);
  color: var(--text-strong);
  display: grid; place-items: center;
  font-weight: 800; font-size: 14px;
}
.step-t { font-weight: 700; color: var(--text-strong); font-size: 14px; }
.step-d { color: var(--text-muted); font-size: 12.5px; margin-top: 2px; }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; } }

/* ---------------- Layout ---------------- */
main {
  max-width: var(--container-xl);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: 20px;
  padding: 20px 32px 32px;
  align-items: start;
}
@media (max-width: 980px) { main { grid-template-columns: 1fr; } }
#settings-col, #work-col { display: flex; flex-direction: column; gap: 20px; min-width: 0; }

/* ---------------- Cards ---------------- */
.card {
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 18px 20px 20px;
  box-shadow: var(--shadow-sm);
}
.card > h2, .card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-strong);
}
.card-head { cursor: pointer; }
.card .step-num { width: 26px; height: 26px; font-size: 13px; border-width: var(--border-thin); }
.card h2 .note { font-weight: 500; font-size: 12px; color: var(--text-subtle); letter-spacing: 0; }

/* ---------------- Fields ---------------- */
.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 14px;
  margin-bottom: 10px;
}
.field-grid label { display: flex; flex-direction: column; gap: 4px; font-size: 12.5px; color: var(--text-muted); font-weight: 600; }
.unit { color: var(--text-subtle); font-size: 11px; font-weight: 500; }

input[type="number"], input[type="text"], select, textarea {
  background: var(--surface-page);
  border: 1px solid var(--border-default);
  color: var(--text-strong);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  font-size: 13px;
  font-family: inherit;
  width: 100%;
  transition: border-color var(--duration-fast) var(--ease-out), box-shadow var(--duration-fast) var(--ease-out);
}
textarea { font-family: "SFMono-Regular", Consolas, monospace; resize: vertical; }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--rulo-ink-950);
  box-shadow: var(--shadow-focus);
}

.check { display: flex; align-items: center; gap: 8px; margin: 8px 0; font-size: 13px; color: var(--text-body); font-weight: 500; }
.check input { width: auto; accent-color: var(--accent); }

.hint { color: var(--text-muted); font-size: 12.5px; margin: 8px 0; }
.dim { color: var(--text-muted); }
.small { font-size: 12px; }
.hidden { display: none !important; }
.block-label { display: block; font-size: 12.5px; color: var(--text-muted); font-weight: 600; margin: 8px 0 4px; }
.block-label code, code { font-family: "SFMono-Regular", Consolas, monospace; background: var(--surface-sunken); padding: 1px 5px; border-radius: var(--radius-xs); font-size: 12px; color: var(--text-strong); }

.row { display: flex; align-items: center; gap: 12px; margin-top: 12px; flex-wrap: wrap; }

/* ---------------- Buttons (pills) ---------------- */
button {
  background: var(--surface-page);
  color: var(--text-strong);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-pill);
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);
}
button:hover:not(:disabled) { background: var(--hover-fill); }
button:active:not(:disabled) { transform: translateY(1px); }
button:disabled { opacity: 0.4; cursor: default; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-contrast); }
button.primary:hover:not(:disabled) { background: var(--accent-hover); border-color: var(--accent-hover); }
button.primary:active:not(:disabled) { background: var(--accent-press); }
button.danger { background: var(--surface-page); border-color: var(--border-default); color: var(--danger-text); }
button.danger:hover:not(:disabled) { background: var(--danger-hover); border-color: var(--danger-text); }
button.ghost { background: transparent; border-color: var(--border-subtle); color: var(--text-muted); font-weight: 600; padding: 6px 14px; font-size: 12.5px; }
button.ghost:hover:not(:disabled) { background: var(--hover-fill); border-color: var(--border-default); color: var(--text-strong); }

/* ---------------- Disclosure ---------------- */
details.disclose { margin-top: 10px; border-top: 1px solid var(--border-subtle); padding-top: 6px; }
details.disclose > summary {
  cursor: pointer;
  list-style: none;
  color: var(--text-muted);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 0;
  display: flex; align-items: center; gap: 8px;
}
details.disclose > summary::-webkit-details-marker { display: none; }
details.disclose > summary::before {
  content: "";
  width: 7px; height: 7px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(-45deg);
  transition: transform var(--duration-fast) var(--ease-out);
}
details.disclose[open] > summary::before { transform: rotate(45deg); }
details.card-collapse > summary.card-head { list-style: none; }
details.card-collapse > summary.card-head::-webkit-details-marker { display: none; }
details.card-collapse > summary.card-head::after {
  content: "";
  margin-left: auto;
  width: 8px; height: 8px;
  border-right: 2px solid var(--text-muted);
  border-bottom: 2px solid var(--text-muted);
  transform: rotate(45deg);
  transition: transform var(--duration-fast) var(--ease-out);
}
details.card-collapse[open] > summary.card-head::after { transform: rotate(-135deg); }

/* ---------------- Tool preview ---------------- */
#tool-preview {
  width: 100%;
  height: auto;
  background: var(--surface-sunken);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-top: 12px;
}
#tool-stress-info { color: var(--text-muted); font-size: 12px; margin-top: 6px; }

/* ---------------- Dropzone ---------------- */
#dropzone {
  border: 2px dashed var(--border-default);
  border-radius: var(--radius-md);
  padding: 26px 18px;
  text-align: center;
  transition: border-color var(--duration-base) var(--ease-out), background var(--duration-base) var(--ease-out);
}
#dropzone.dragover { border-color: var(--rulo-ink-950); background: var(--surface-wash); }
#dropzone p { margin: 4px 0; }
#dropzone .dz-main { font-weight: 700; color: var(--text-strong); font-size: 15px; }
#dropzone input[type="file"] { display: none; }
.linklike { color: var(--rulo-ink-950); text-decoration: underline; text-underline-offset: 2px; cursor: pointer; font-weight: 600; }

/* ---------------- File queue ---------------- */
#file-list { list-style: none; margin: 14px 0 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.file-item {
  background: var(--surface-page);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 14px;
}
.file-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.file-name { font-weight: 700; color: var(--text-strong); overflow-wrap: anywhere; flex: 1; min-width: 160px; }
.file-meta { color: var(--text-muted); font-size: 12px; white-space: nowrap; }
.file-status { font-size: 12px; min-width: 90px; text-align: right; font-weight: 600; color: var(--text-muted); }
.file-status.ok { color: var(--ok-text); }
.file-status.warn { color: var(--warn-text); }
.file-status.err { color: var(--err-text); }
.file-buttons { display: flex; gap: 6px; }
.file-buttons button { padding: 4px 10px; font-size: 12px; }

.progress { height: 5px; background: var(--track); border-radius: var(--radius-pill); margin-top: 8px; overflow: hidden; }
.progress > div { height: 100%; width: 0%; background: var(--accent); transition: width 0.1s linear; }

.file-settings {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 8px 12px;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border-subtle);
}
.file-settings label { display: flex; flex-direction: column; gap: 3px; font-size: 11.5px; color: var(--text-muted); font-weight: 600; }
.file-settings input, .file-settings select { padding: 5px 8px; font-size: 12px; }
.file-settings .check { font-size: 12px; margin: 0; align-self: end; }

/* ---------------- Stock preview ---------------- */
.preview-tools { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.preview-tools .cm-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.14em; color: var(--text-subtle); font-weight: 700; }
#viewer-wrap { display: flex; gap: 14px; align-items: flex-start; position: relative; }
#stock-canvas {
  flex: 1;
  min-width: 0;
  width: 100%;
  height: auto;
  background: var(--surface-sunken);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  image-rendering: pixelated;
  cursor: crosshair;
}
#hover-tip {
  position: absolute;
  pointer-events: none;
  background: rgba(20, 20, 20, 0.94);
  border: 1px solid #3d3d3d;
  color: #ffffff;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 11.5px;
  line-height: 1.35;
  padding: 6px 9px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  z-index: 10;
}
#hover-tip strong { color: #ffffff; }
.file-buttons button.off { opacity: 0.3; }
#viewer-legend { display: flex; gap: 6px; }
#legend-canvas { border: 1px solid var(--border-subtle); border-radius: var(--radius-xs); }
#legend-labels { display: flex; flex-direction: column; justify-content: space-between; font-size: 11px; color: var(--text-muted); font-weight: 600; }

/* ---------------- MRR / time chart ---------------- */
#mrr-card .preview-tools select { width: auto; min-width: 200px; max-width: 320px; }
#mrr-wrap { position: relative; }
#mrr-canvas {
  width: 100%;
  height: 320px;
  display: block;
  background: var(--surface-sunken);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: crosshair;
}
#mrr-tip {
  position: absolute;
  pointer-events: none;
  background: rgba(20, 20, 20, 0.94);
  border: 1px solid #3d3d3d;
  color: #ffffff;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 11.5px;
  line-height: 1.4;
  padding: 6px 9px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  z-index: 10;
}
#mrr-tip .k-before { color: var(--preview-stress); }
#mrr-tip .k-after { color: #ffffff; }
#mrr-legend {
  display: flex; align-items: center; flex-wrap: wrap;
  gap: 6px 18px;
  margin-top: 10px;
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 600;
}
#mrr-legend .check { margin: 0; }
#mrr-legend .key { display: flex; align-items: center; gap: 7px; }
#mrr-legend .key i { width: 16px; height: 0; border-top: 2px solid currentColor; display: block; }
#mrr-legend .key-before { color: var(--preview-stress); }
#mrr-legend .key-after { color: var(--preview-ink); }
#mrr-legend .key-target { color: var(--ok-text); }
#mrr-legend .key-target i { border-top-style: dashed; }
#mrr-summary { margin-left: auto; font-family: "SFMono-Regular", Consolas, monospace; font-weight: 500; }

/* ---------------- Log ---------------- */
#log {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
  background: var(--surface-sunken);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  max-height: 220px;
  overflow-y: auto;
  white-space: pre-wrap;
  color: var(--text-body);
}
#log .warn { color: var(--warn-text); }
#log .err { color: var(--err-text); }
#log .ok { color: var(--ok-text); }

/* ---------------- Footer ---------------- */
footer {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 8px 32px 40px;
  color: var(--text-muted);
  font-size: 12.5px;
}
footer .foot-tech { max-width: 900px; }
footer .foot-credit {
  display: flex; align-items: center; gap: 10px;
  margin-top: 20px; padding-top: 18px;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-subtle);
  font-size: 12px;
}
footer .foot-credit img { width: 20px; height: 20px; }
footer details.disclose { border-top: none; }