/* Squared Up Parts mobile-first UI with spacious rhythm and interactive 3D game-style workbench */
:root {
  --surface-light: #f9f9f7;
  --surface-dark: #101318;
  --panel-light: #f1f0eb;
  --panel-dark: #161b22;
  --card-light: #ffffff;
  --card-dark: #151920;
  --ink-light: #15181c;
  --ink-dark: #f2f1ed;
  --muted-light: #505762;
  --muted-dark: #a6afb9;
  --line-light: #d7d4cb;
  --line-dark: #2a313c;
  --brand-accent-light: #c2410c;
  --brand-accent-dark: #f26c38;
  --brass-light: #7c5f1a;
  --brass-dark: #dfb456;
  --ok-light: #166534;
  --ok-dark: #4ad282;
  --err-light: #b8251e;
  --err-dark: #ff7369;
  --err-bg-light: #fdeae8;
  --err-bg-dark: #381918;
  --scroll-track-light: #ebe9e2;
  --scroll-track-dark: #181b20;
  --scroll-thumb-light: #757b84;
  --scroll-thumb-dark: #889099;

  --bg: var(--surface-light);
  --panel: var(--panel-light);
  --card: var(--card-light);
  --ink: var(--ink-light);
  --muted: var(--muted-light);
  --line: var(--line-light);
  --brand-accent: var(--brand-accent-light);
  --brass: var(--brass-light);
  --ok: var(--ok-light);
  --err: var(--err-light);
  --err-bg: var(--err-bg-light);
  --scrollbar-track: var(--scroll-track-light);
  --scrollbar-thumb: var(--scroll-thumb-light);
  --cad-bg: #11161f;
  --target-size: 24px;

  @media (prefers-color-scheme: dark) {
    --bg: var(--surface-dark);
    --panel: var(--panel-dark);
    --card: var(--card-dark);
    --ink: var(--ink-dark);
    --muted: var(--muted-dark);
    --line: var(--line-dark);
    --brand-accent: var(--brand-accent-dark);
    --brass: var(--brass-dark);
    --ok: var(--ok-dark);
    --err: var(--err-dark);
    --err-bg: var(--err-bg-dark);
    --scrollbar-track: var(--scroll-track-dark);
    --scrollbar-thumb: var(--scroll-thumb-dark);
  }

  @supports (color: light-dark(white, black)) {
    --bg: light-dark(var(--surface-light), var(--surface-dark));
    --panel: light-dark(var(--panel-light), var(--panel-dark));
    --card: light-dark(var(--card-light), var(--card-dark));
    --ink: light-dark(var(--ink-light), var(--ink-dark));
    --muted: light-dark(var(--muted-light), var(--muted-dark));
    --line: light-dark(var(--line-light), var(--line-dark));
    --brand-accent: light-dark(var(--brand-accent-light), var(--brand-accent-dark));
    --brass: light-dark(var(--brass-light), var(--brass-dark));
    --ok: light-dark(var(--ok-light), var(--ok-dark));
    --err: light-dark(var(--err-light), var(--err-dark));
    --err-bg: light-dark(var(--err-bg-light), var(--err-bg-dark));
    --scrollbar-track: light-dark(var(--scroll-track-light), var(--scroll-track-dark));
    --scrollbar-thumb: light-dark(var(--scroll-thumb-light), var(--scroll-thumb-dark));
  }

  color-scheme: light dark;
  accent-color: var(--brand-accent);
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.58;
}

@media (pointer: coarse) {
  :root {
    --target-size: 44px;
  }
}

@supports not (scrollbar-color: auto) {
  ::-webkit-scrollbar {
    width: 10px;
    height: 10px;
  }
  ::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
  }
  ::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-block-start: 5rem;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  background-color: var(--bg);
  color: var(--ink);
  accent-color: var(--brand-accent);
  line-height: 1.58;
  overflow-wrap: anywhere;
  padding-block-end: 6rem;
}

@media (min-width: 56em) {
  body {
    padding-block-end: 0;
  }
}

img,
video,
svg {
  max-inline-size: 100%;
  block-size: auto;
}

h1,
h2,
h3 {
  text-wrap: balance;
}

p,
li {
  text-wrap: pretty;
}

:where(
    button,
    select,
    textarea,
    input:not([type="checkbox"], [type="radio"], [type="range"]),
    [role="button"],
    nav a,
    label:has(input[type="checkbox"], input[type="radio"])
  ) {
  min-block-size: var(--target-size);
  min-inline-size: var(--target-size);
}

:where([role="button"], nav a, label:has(input[type="checkbox"], input[type="radio"])) {
  display: inline-flex;
  align-items: center;
}

.tabular,
code,
pre,
table td,
output,
.price-tag,
.num-input {
  font-variant-numeric: tabular-nums;
  font-family: "SFMono-Regular", ui-monospace, Menlo, Consolas, monospace;
}

.visually-hidden:where(:not(:focus-within, :active)) {
  position: absolute !important;
  clip-path: inset(50%) !important;
  overflow: hidden !important;
  width: 1px !important;
  height: 1px !important;
  margin: -1px !important;
  padding: 0 !important;
  border: 0 !important;
  white-space: nowrap !important;
}

a {
  color: inherit;
  text-decoration-color: var(--line);
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-color: var(--brand-accent);
}

a:focus-visible,
button:focus-visible,
select:focus-visible,
input:focus-visible,
textarea:focus-visible,
canvas:focus-visible {
  outline: 2px solid var(--brand-accent);
  outline-offset: 2px;
}

/* Spacious mobile-first container rhythm */
.container {
  max-inline-size: 74rem;
  margin-inline: auto;
  padding-inline: max(1.25rem, env(safe-area-inset-left, 0px)) max(1.25rem, env(safe-area-inset-right, 0px));
}

@media (min-width: 48em) {
  .container {
    padding-inline: clamp(1.5rem, 4vw, 2.5rem);
  }
}

.narrow-wrap {
  max-inline-size: 44rem;
  margin-inline: 0;
}

/* Header */
.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 20;
  border-block-end: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 94%, transparent);
  backdrop-filter: blur(8px);
  padding-block-start: env(safe-area-inset-top, 0px);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.25rem;
  padding-block: 0.75rem;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 1.05rem;
  min-block-size: var(--target-size);
}

.brand-glyph {
  inline-size: 1.2rem;
  block-size: 1.2rem;
  border: 2px solid var(--ink);
  border-radius: 3px;
  display: inline-grid;
  place-items: center;
  flex-shrink: 0;
}

.brand-glyph::after {
  content: "";
  inline-size: 0.42rem;
  block-size: 0.42rem;
  background: var(--brand-accent);
}

.nav-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem 1.2rem;
  margin: 0;
  padding: 0;
  font-size: 0.92rem;
}

.nav-list a {
  text-decoration: none;
  padding-inline: 0.2rem;
  border-block-end: 2px solid transparent;
  color: var(--muted);
}

.nav-list a:hover {
  color: var(--ink);
}

.nav-list a[aria-current="page"] {
  color: var(--ink);
  border-block-end-color: var(--brand-accent);
  font-weight: 600;
}

/* Hero with fluid container scaling + breathable spacing */
.hero-section {
  padding-block: clamp(2.25rem, 1.5rem + 3.5vw, 3.85rem);
  border-block-end: 1px solid var(--line);
  background: var(--panel);
}

.hero-inner {
  container-type: inline-size;
  container-name: hero-box;
}

.eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.025em;
  text-transform: uppercase;
  color: var(--brand-accent);
  font-weight: 650;
  margin: 0 0 0.75rem;
}

h1 {
  font-size: clamp(1.65rem, 1.25rem + 2.1vw, 2.55rem);
  line-height: 1.16;
  letter-spacing: -0.026em;
  margin: 0 0 0.9rem;
  max-inline-size: 27ch;
}

@supports (font-size: 1cqi) {
  .hero-inner h1 {
    font-size: clamp(1.65rem, 1.1rem + 2.6cqi, 2.55rem);
  }
}

h2 {
  font-size: clamp(1.28rem, 1.08rem + 0.9vw, 1.65rem);
  line-height: 1.24;
  letter-spacing: -0.016em;
  margin: 0 0 0.35rem;
}

.hero-lead {
  font-size: clamp(1rem, 0.95rem + 0.3vw, 1.12rem);
  line-height: 1.62;
  color: var(--muted);
  max-inline-size: 60ch;
  margin: 0;
}

.hero-pills {
  margin-block-start: 1.65rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

@media (min-width: 42em) {
  .hero-pills {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    max-inline-size: 62rem;
    gap: 1rem;
  }
}

.pill-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem;
  padding: 0.95rem 1.1rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  cursor: pointer;
  text-align: start;
  font: inherit;
  transition: border-color 140ms ease, transform 140ms ease;
}

.pill-btn:hover {
  border-color: var(--brand-accent);
}

.pill-btn.is-active {
  border-color: var(--brand-accent);
  box-shadow: inset 3.5px 0 0 var(--brand-accent);
}

.pill-copy {
  display: grid;
  gap: 0.18rem;
  min-inline-size: 0;
}

.pill-title {
  font-weight: 680;
  font-size: 0.95rem;
}

.pill-sub {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.35;
}

.pill-meta {
  font-size: 0.84rem;
  font-weight: 650;
  color: var(--brand-accent);
  white-space: nowrap;
}

/* Spacious section rhythm */
.section {
  padding-block: clamp(2.35rem, 1.65rem + 3vw, 4rem);
  border-block-end: 1px solid var(--line);
}

.workshop-intro,
.section-head {
  margin-block-end: 1.5rem;
}

.meta-line {
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--muted);
  margin: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.72rem 1.25rem;
  font-size: 0.96rem;
  font-weight: 650;
  border-radius: 7px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
}

.btn-cta {
  padding-block: 0.92rem;
  font-size: 1.03rem;
}

.btn-quiet {
  background: transparent;
}

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

.btn-primary:hover {
  filter: brightness(1.06);
}

.btn-primary:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-small {
  padding: 0.48rem 0.85rem;
  font-size: 0.85rem;
}

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

/* Workshop layout: natural Z-order on desktop matches DOM order on mobile (1 -> 2 -> 3 -> 4) */
.workshop-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.35rem;
}

.workshop-card {
  container-type: inline-size;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: clamp(1.25rem, 3.5vw, 1.65rem);
  min-inline-size: 0;
}

@supports (padding: 1cqi) {
  .workshop-card {
    padding: clamp(1.25rem, 4cqi, 1.7rem);
  }
}

@media (min-width: 58em) {
  .workshop-grid {
    grid-template-columns: minmax(21rem, 25.5rem) minmax(0, 1fr);
    grid-template-areas:
      "pickers drawing"
      "dimensions drawing"
      "dimensions order";
    align-items: start;
    column-gap: 1.65rem;
    row-gap: 1.35rem;
  }

  .workshop-pickers {
    grid-area: pickers;
  }

  .workshop-drawing {
    grid-area: drawing;
  }

  .workshop-dimensions {
    grid-area: dimensions;
  }

  .workshop-order {
    grid-area: order;
  }
}

.control-group {
  margin-block-end: 1.15rem;
}

.control-group-last {
  margin-block-end: 0;
}

.note-group {
  margin-block: 1.15rem 0;
  padding-block-start: 1.15rem;
  border-block-start: 1px solid var(--line);
}

.control-group label,
.step-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 650;
  margin-block-end: 0.42rem;
}

.dimensions-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.45rem 0.85rem;
  padding-block-end: 0.75rem;
  border-block-end: 1px solid var(--line);
}

.dimensions-head .step-label {
  margin: 0;
}

.hint-inline {
  font-size: 0.78rem;
  color: var(--muted);
}

/* Form controls: font-size >= 1rem prevents iOS Safari auto-zoom on tap */
select,
input[type="text"],
input[type="email"],
input[type="number"],
textarea {
  inline-size: 100%;
  padding: 0.65rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg);
  color: var(--ink);
  font: inherit;
  font-size: max(1rem, 1em);
}

.sliders-stack {
  padding-block-start: 0.35rem;
}

.slider-row {
  padding-block: 0.92rem;
  border-block-end: 1px solid color-mix(in srgb, var(--line) 55%, transparent);
}

.slider-row:last-child {
  border-block-end: 0;
  padding-block-end: 0.25rem;
}

.slider-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  margin-block-end: 0.3rem;
}

.slider-head label {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 580;
}

.num-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
}

.num-wrap input.num-input {
  inline-size: 5.3rem;
  padding: 0.36rem 0.5rem;
  text-align: end;
  font-weight: 650;
  font-size: 1rem;
}

.unit-tag {
  font-size: 0.8rem;
  color: var(--muted);
  min-inline-size: 1.65rem;
}

.ctrl-help {
  display: block;
  font-size: 0.79rem;
  line-height: 1.45;
  color: var(--muted);
  margin-block-end: 0.35rem;
}

/* Range slider */
input[type="range"] {
  --slider-track-size: 0.46rem;
  --slider-thumb-size: 1.35rem;
  --slider-track-radius: 999px;
  --slider-thumb-radius: 50%;
  --slider-track-color: var(--line);
  --slider-fill-color: var(--brand-accent);
  --slider-thumb-color: var(--slider-fill-color);
  --slider-direction: to right;

  &:dir(rtl) {
    --slider-direction: to left;
  }

  --attr-min: attr(min type(<number>), 0);
  --attr-max: attr(max type(<number>), 100);
  --control-value: attr(value type(<number>), 50);
  --slider-progress: calc(
    progress(var(--control-value), var(--attr-min), var(--attr-max)) * 100%
  );

  appearance: none;
  inline-size: 100%;
  block-size: 2.35rem;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  cursor: pointer;
}

@supports not (opacity: progress(1, 0, 100)) {
  input[type="range"] {
    --slider-progress: calc(
      (var(--control-value) - var(--attr-min)) /
      (var(--attr-max) - var(--attr-min)) * 100%
    );
  }
}

input[type="range"]::-webkit-slider-runnable-track {
  block-size: var(--slider-track-size);
  border: 0;
  border-radius: var(--slider-track-radius);
  background: linear-gradient(
    var(--slider-direction),
    var(--slider-fill-color) var(--slider-progress),
    var(--slider-track-color) var(--slider-progress)
  );
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  inline-size: var(--slider-thumb-size);
  block-size: var(--slider-thumb-size);
  margin-block-start: calc(
    (var(--slider-track-size) - var(--slider-thumb-size)) / 2
  );
  border: 2px solid var(--card);
  border-radius: var(--slider-thumb-radius);
  background: var(--slider-thumb-color);
}

input[type="range"]::-moz-range-track {
  block-size: var(--slider-track-size);
  border: 0;
  border-radius: var(--slider-track-radius);
  background: var(--slider-track-color);
}

input[type="range"]::-moz-range-progress {
  block-size: var(--slider-track-size);
  border-radius: var(--slider-track-radius);
  background: var(--slider-fill-color);
}

input[type="range"]::-moz-range-thumb {
  inline-size: var(--slider-thumb-size);
  block-size: var(--slider-thumb-size);
  border: 2px solid var(--card);
  border-radius: var(--slider-thumb-radius);
  background: var(--slider-thumb-color);
}

input[type="range"]:focus-visible {
  outline: 2px solid var(--slider-fill-color);
  outline-offset: 4px;
}

/* Interactive 3D game-style workbench stage */
.workbench-stage-wrap {
  content-visibility: auto;
  contain-intrinsic-size: auto none auto 420px;
}

.drawing-frame {
  background: var(--cad-bg);
  color: #f2f1ed;
  border: 1px solid #283241;
  border-radius: 8px;
  padding: 0.9rem 1rem;
  color-scheme: dark;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.drawing-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.76rem;
  color: #c2cad6;
  padding-block-end: 0.65rem;
  border-block-end: 1px solid rgba(242, 241, 237, 0.1);
}

.hud-left-badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
}

.hud-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.74rem;
  color: #e2e8f0;
}

.hud-chip-dim {
  color: #7dd3fc;
  border-color: rgba(56, 189, 248, 0.28);
  background: rgba(56, 189, 248, 0.1);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  font-size: 0.74rem;
  font-weight: 650;
}

.badge-ok {
  background: rgba(74, 210, 130, 0.15);
  border: 1px solid rgba(74, 210, 130, 0.3);
  color: #72eba3;
}

.badge-err {
  background: rgba(255, 115, 105, 0.18);
  border: 1px solid rgba(255, 115, 105, 0.35);
  color: #ff948c;
}

.canvas-stage-box {
  position: relative;
  margin-block: 0.75rem;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.16);
  background: #121822;
}

.workbench-canvas {
  display: block;
  inline-size: 100%;
  block-size: clamp(15.5rem, 48vw, 22rem);
  cursor: grab;
  touch-action: none;
  user-select: none;
}

.workbench-canvas:active {
  cursor: grabbing;
}

.canvas-drag-hint {
  position: absolute;
  inset-inline-start: 0.65rem;
  inset-block-end: 0.55rem;
  padding: 0.18rem 0.5rem;
  border-radius: 4px;
  background: rgba(11, 15, 22, 0.74);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #cbd5e1;
  font-size: 0.7rem;
  pointer-events: none;
}

.workbench-hud-controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  margin-block-end: 0.65rem;
}

.hud-btn-group {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.38rem;
}

.hud-btn {
  min-block-size: max(2rem, var(--target-size));
  min-inline-size: max(2.6rem, var(--target-size));
  padding: 0.3rem 0.68rem;
  border-radius: 5px;
  border: 1px solid rgba(226, 232, 240, 0.18);
  background: rgba(255, 255, 255, 0.05);
  color: #e2e8f0;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
}

.hud-btn:hover {
  border-color: #f26c38;
  background: rgba(242, 108, 56, 0.14);
}

.hud-btn.is-on {
  border-color: #38bdf8;
  background: rgba(56, 189, 248, 0.18);
  color: #bae6fd;
}

.drawing-caption {
  font-size: 0.78rem;
  line-height: 1.5;
  color: #9ba5b4;
  margin: 0;
}

.fitment-note {
  margin-block-start: 0.95rem;
  padding: 0.75rem 0.95rem;
  background: var(--panel);
  border-radius: 6px;
  border-inline-start: 3.5px solid var(--brass);
  font-size: 0.84rem;
  line-height: 1.52;
  color: var(--ink);
}

/* Order card */
.workshop-order {
  display: grid;
  gap: 1.05rem;
}

.quote-meta {
  display: grid;
  gap: 0.32rem;
}

.price-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.7rem;
}

.price-tag {
  font-size: 1.75rem;
  font-weight: 700;
}

.ship-tag {
  font-size: 0.88rem;
  font-weight: 560;
  color: var(--ink);
}

.trust-note {
  font-size: 0.81rem;
  line-height: 1.55;
  color: var(--muted);
  margin: 0;
}

/* Mobile sticky quick-order bar */
.mobile-sticky-bar {
  position: fixed;
  inset-inline: 0;
  inset-block-end: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem;
  background: var(--card);
  border-block-start: 1px solid var(--line);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
  padding-block-start: 0.75rem;
  padding-block-end: max(0.75rem, env(safe-area-inset-bottom, 0px));
  padding-inline-start: max(1.25rem, env(safe-area-inset-left, 0px));
  padding-inline-end: max(1.25rem, env(safe-area-inset-right, 0px));
}

.mobile-sticky-bar.is-hidden {
  display: none;
}

@media (min-width: 58em) {
  .mobile-sticky-bar {
    display: none !important;
  }
}

.mobile-sticky-meta {
  display: grid;
  gap: 0.1rem;
  min-inline-size: 0;
}

.sticky-price {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.15;
}

.sticky-sub {
  font-size: 0.76rem;
  color: var(--muted);
}

/* Validation states */
.field {
  margin-block-end: 1.2rem;
}

.field label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-block-end: 0.25rem;
}

.hint {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  margin-block-end: 0.38rem;
}

.error-msg {
  display: none;
  color: var(--err);
  font-size: 0.84rem;
  margin-block-start: 0.35rem;
  font-weight: 500;
}

:is(input, select, textarea):is(:user-invalid, .user-invalid-fallback) {
  border-color: var(--err);
  background-color: var(--err-bg);
}

:is(input, select, textarea):is(:user-invalid, .user-invalid-fallback) + .error-msg {
  display: block;
}

:is(input, select, textarea):is(:user-valid, .user-valid-fallback) {
  border-color: var(--ok);
}

/* Dialog */
dialog {
  background: var(--card);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0;
  max-inline-size: min(31rem, calc(100dvw - 2.5rem));
  inline-size: 100%;
}

dialog:modal {
  overscroll-behavior: contain;
}

dialog::backdrop {
  background-color: rgba(10, 12, 15, 0.58);
  overflow: hidden;
  overscroll-behavior: contain;
}

.dialog-inner {
  padding: 1.5rem;
}

.dialog-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-block-end: 0.85rem;
}

.dialog-head h2 {
  margin: 0;
  font-size: 1.18rem;
}

.entity-note {
  padding: 0.75rem 0.9rem;
  background: var(--panel);
  border-radius: 6px;
  font-size: 0.84rem;
  margin-block: 0.75rem 1.15rem;
}

/* Responsive tables */
.table-wrapper {
  overflow: auto;
  max-inline-size: 100%;
  container: spec-table / inline-size;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--card);
}

table.spec-table {
  inline-size: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.9rem;
}

table.spec-table caption {
  text-align: start;
  font-weight: 600;
  padding: 0.85rem 1.15rem;
  background: var(--panel);
  border-block-end: 1px solid var(--line);
}

table.spec-table thead {
  position: sticky;
  inset-block-start: 0;
  z-index: 1;
  background: var(--panel);
}

table.spec-table th,
table.spec-table td {
  padding: 0.9rem 1.15rem;
  text-align: start;
  border-block-end: 1px solid var(--line);
  vertical-align: middle;
}

table.spec-table tbody tr:last-child th,
table.spec-table tbody tr:last-child td {
  border-block-end: 0;
}

table.spec-table tbody th {
  position: sticky;
  inset-inline-start: 0;
  background: var(--card);
  font-weight: 600;
}

.row-sub {
  display: block;
  font-size: 0.76rem;
  font-weight: 400;
  color: var(--muted);
  margin-block-start: 0.15rem;
}

.row-actions {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

table.parts-table {
  --label-2: "Material";
  --label-3: "Base price";
  --label-4: "Action";
}

table.kv-table {
  --label-2: "Value";
}

@container spec-table (inline-size < 38rem) {
  table.spec-table,
  table.spec-table thead,
  table.spec-table tbody,
  table.spec-table tr,
  table.spec-table th,
  table.spec-table td {
    display: block;
  }

  table.spec-table thead {
    display: none;
  }

  table.spec-table tr {
    border-block-end: 1px solid var(--line);
    padding-block-end: 0.35rem;
  }

  table.spec-table tbody th {
    position: sticky;
    inset-block-start: 0;
    z-index: 2;
    background: var(--panel);
  }

  table.spec-table td {
    border-block-end: 0;
    padding-block: 0.52rem;
  }

  table.spec-table td:nth-child(2)::before {
    content: var(--label-2) ": ";
    font-weight: 600;
    color: var(--muted);
  }

  table.parts-table td:nth-child(3)::before {
    content: var(--label-3) ": ";
    font-weight: 600;
    color: var(--muted);
  }

  table.parts-table td:nth-child(4)::before {
    content: var(--label-4) ": ";
    font-weight: 600;
    color: var(--muted);
  }
}

.status-banner {
  padding: 0.85rem 1.05rem;
  border-radius: 7px;
  border: 1px solid var(--line);
  background: var(--panel);
  margin-block-end: 1rem;
  font-size: 0.9rem;
}

.status-err {
  border-color: var(--err);
  background: var(--err-bg);
  color: var(--err);
  margin-block-end: 0;
}

/* Footer */
.site-footer {
  padding-block: 2.75rem;
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--muted);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.25rem 2rem;
}

.footer-brand-block {
  max-inline-size: 38rem;
}

.footer-inner p {
  margin: 0.25rem 0;
}

.footer-title {
  color: var(--ink);
  font-weight: 680;
  font-size: 0.95rem;
}