/* contribution-fx site
   Built on the contribution graph's own geometry: 11px cells on a 14px pitch. */

:root {
  --paper: #f3f5f2;
  --card: #ffffff;
  --ink: #17201a;
  --muted: #5a665e;
  --line: #d9dfd8;
  --soft: #e7ebe5;
  --moss: #1a7f37;
  --gold: #f0b429;
  --gold-hi: #f7c948;
  --gold-ink: #2a1d00;
  --code-bg: #0f1524;
  --code-line: #1f2840;
  --code-ink: #d6deeb;

  --p0: #e3e8e1;
  --p1: #9be9a8;
  --p2: #40c463;
  --p3: #30a14e;
  --p4: #216e39;

  --stage-light: #ffffff;
  --stage-dark: #0d1117;

  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --radius: 10px;
  --wrap: 1120px;
  --shadow: 0 1px 0 rgba(23, 32, 26, 0.04), 0 12px 32px -18px rgba(23, 32, 26, 0.28);

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0e1320;
    --card: #141b2b;
    --ink: #e9edf5;
    --muted: #96a2b8;
    --line: #242e45;
    --soft: #1a2236;
    --moss: #3fb950;
    --gold: #f2c14e;
    --gold-hi: #ffd56b;
    --gold-ink: #2a1d00;
    --code-bg: #0a0f1b;
    --code-line: #1b2438;

    --p0: #1a2234;
    --p1: #0e4429;
    --p2: #006d32;
    --p3: #26a641;
    --p4: #39d353;

    --shadow: 0 1px 0 rgba(0, 0, 0, 0.2), 0 18px 40px -20px rgba(0, 0, 0, 0.7);
  }
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1rem/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  display: block;
}

[hidden] {
  display: none !important;
}

a {
  color: inherit;
  text-decoration-color: color-mix(in srgb, currentColor 35%, transparent);
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-color: currentColor;
}

code,
pre,
kbd {
  font-family: var(--mono);
  font-size: 0.875em;
}

:not(pre) > code {
  padding: 0.1em 0.38em;
  border-radius: 5px;
  background: var(--soft);
  white-space: nowrap;
}

:focus-visible {
  outline: 2px solid var(--moss);
  outline-offset: 3px;
  border-radius: 6px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 30;
  padding: 8px 14px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--paper);
}

.skip:focus {
  top: 12px;
}

.wrap {
  width: min(var(--wrap), 100% - 40px);
  margin-inline: auto;
}

.muted {
  color: var(--muted);
}

/* Contribution levels, shared by the brand mark and the pixel headline */
.p0 { fill: var(--p0); }
.p1 { fill: var(--p1); }
.p2 { fill: var(--p2); }
.p3 { fill: var(--p3); }
.p4 { fill: var(--p4); }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  font: 600 0.975rem/1 var(--sans);
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s, color 0.15s, transform 0.15s, box-shadow 0.15s;
}

.btn:active {
  transform: translateY(1px);
}

.btn-sm {
  min-height: 34px;
  padding: 0 14px;
  font-size: 0.875rem;
}

.btn .star {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.btn-star {
  background: var(--gold);
  color: var(--gold-ink);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.5) inset, 0 6px 18px -8px color-mix(in srgb, var(--gold) 80%, transparent);
}

.btn-star:hover {
  background: var(--gold-hi);
}

.btn-star:hover .star {
  animation: twinkle 0.6s ease;
}

@keyframes twinkle {
  40% { transform: rotate(-18deg) scale(1.2); }
  100% { transform: rotate(0) scale(1); }
}

.btn-ghost {
  border-color: var(--line);
  background: transparent;
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: var(--muted);
}

.btn-ink {
  background: var(--ink);
  color: var(--paper);
}

.btn-ink:hover {
  background: color-mix(in srgb, var(--ink) 85%, var(--moss));
}

.btn-ink[aria-busy="true"] {
  cursor: progress;
  opacity: 0.75;
}

.btn-quiet {
  border-color: var(--stage-line, var(--line));
  background: transparent;
  color: inherit;
}

.btn-quiet:hover {
  background: color-mix(in srgb, currentColor 8%, transparent);
}

/* ---------- nav ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 60px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: 700 1rem/1 var(--mono);
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  width: 22px;
  height: 22px;
}

.nav-links {
  display: flex;
  gap: 22px;
  margin-left: auto;
  font-size: 0.925rem;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
}

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

/* ---------- hero ---------- */

.hero {
  padding: clamp(48px, 9vw, 104px) 0 clamp(56px, 8vw, 96px);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--muted);
  font: 500 0.8125rem/1.4 var(--mono);
  letter-spacing: 0.02em;
}

.headline {
  margin: 0;
  font-size: clamp(2.5rem, 7.2vw, 5.6rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

/* "alive." drawn as git-art: a 7-row contribution grid, 11px cells on a 14px pitch */
.pixel-word {
  display: inline-block;
  vertical-align: -0.02em;
  margin-left: 0.12em;
}

.pixel-word svg {
  height: 0.8em;
  width: auto;
  overflow: visible;
}

.pixel-word rect {
  transition: fill 0.8s ease;
}

@media (prefers-color-scheme: dark) {
  .pixel-word .p1 { fill: var(--p2); }
  .pixel-word .p2 { fill: var(--p3); }
}

.pixel-word .on {
  animation: drop 0.7s cubic-bezier(0.25, 1.5, 0.5, 1) both;
  animation-delay: var(--d, 0ms);
}

@keyframes drop {
  0% { transform: translateY(-160px); opacity: 0; }
  35% { opacity: 1; }
  100% { transform: translateY(0); opacity: 1; }
}

.pitch {
  max-width: 34em;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  line-height: 1.55;
  text-wrap: pretty;
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.showcase {
  margin: clamp(48px, 7vw, 80px) 0 0;
}

.frame {
  overflow: hidden;
  border: 1px solid var(--frame-line, #d0d7de);
  border-radius: 12px;
  background: var(--frame-bg, #ffffff);
  color: var(--frame-ink, #1f2328);
  box-shadow: var(--shadow);
}

@media (prefers-color-scheme: dark) {
  .frame {
    --frame-line: #30363d;
    --frame-bg: #0d1117;
    --frame-ink: #e6edf3;
  }
}

.frame-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 14px 10px 18px;
  border-bottom: 1px solid var(--frame-line, #d0d7de);
  font: 500 0.8125rem/1 var(--mono);
}

.frame-path .muted {
  color: color-mix(in srgb, var(--frame-ink, #1f2328) 55%, transparent);
}

.hero-tabs {
  display: flex;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
}

.hero-tabs button {
  position: relative;
  padding: 7px 10px;
  border: 0;
  border-radius: 6px;
  background: none;
  color: color-mix(in srgb, var(--frame-ink, #1f2328) 60%, transparent);
  font: inherit;
  cursor: pointer;
}

.hero-tabs button:hover {
  color: var(--frame-ink, #1f2328);
}

.hero-tabs button[aria-selected="true"] {
  background: color-mix(in srgb, var(--frame-ink, #1f2328) 8%, transparent);
  color: var(--frame-ink, #1f2328);
}

.hero-tabs button[aria-selected="true"]::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--p3);
  transform-origin: left;
  animation: tab-progress var(--cycle, 10s) linear both;
}

.hero-tabs[data-paused="true"] button[aria-selected="true"]::after {
  animation: none;
}

@keyframes tab-progress {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

.frame-body {
  display: grid;
  place-items: center;
  min-height: 210px;
  padding: clamp(18px, 4vw, 44px) clamp(10px, 3vw, 40px);
}

.frame-body img {
  width: 100%;
  max-width: 1000px;
  height: auto;
}

.stage-body img,
.gallery-media img {
  max-width: 100%;
  height: auto;
}

.hero-caption {
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.925rem;
  text-align: center;
}

/* ---------- sections ---------- */

.section {
  padding: clamp(64px, 9vw, 112px) 0;
  border-top: 1px solid var(--line);
}

.section-head {
  max-width: 640px;
  margin-bottom: 36px;
}

.section h2 {
  margin: 0;
  font-size: clamp(1.9rem, 3.8vw, 2.75rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.lede {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 1.075rem;
  text-wrap: pretty;
}

.lede a code {
  color: var(--ink);
}

/* ---------- playground ---------- */

.user-form {
  max-width: 560px;
  margin-bottom: 22px;
}

.field-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  font-size: 0.925rem;
}

.user-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 5px 5px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.user-row:focus-within {
  border-color: var(--moss);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--moss) 22%, transparent);
}

.at {
  color: var(--muted);
  font: 500 1.05rem/1 var(--mono);
}

.user-row input {
  flex: 1;
  min-width: 0;
  height: 44px;
  border: 0;
  background: transparent;
  color: var(--ink);
  font: 500 1.05rem/1 var(--mono);
  outline: none;
}

.user-row input::placeholder {
  color: color-mix(in srgb, var(--muted) 60%, transparent);
}

.status {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 1.6em;
  margin: 10px 0 0 4px;
  color: var(--muted);
  font-size: 0.925rem;
}

.status::before {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  border-radius: 2px;
  background: var(--p2);
}

.status[data-state="demo"]::before {
  background: var(--p0);
  box-shadow: inset 0 0 0 1px var(--line);
}

.status[data-state="loading"]::before {
  animation: blink 0.9s steps(2, jump-none) infinite;
}

.status[data-state="error"] {
  color: #c4322b;
}

.status[data-state="error"]::before {
  background: #d1453b;
}

@media (prefers-color-scheme: dark) {
  .status[data-state="error"] {
    color: #ff8f86;
  }
}

@keyframes blink {
  0% { background: var(--p1); }
  100% { background: var(--p4); }
}

.stage {
  --stage-bg: var(--stage-light);
  --stage-ink: #1f2328;
  --stage-line: #d0d7de;
  overflow: hidden;
  border: 1px solid var(--stage-line);
  border-radius: 12px;
  background: var(--stage-bg);
  color: var(--stage-ink);
  box-shadow: var(--shadow);
  transition: background-color 0.3s, border-color 0.3s, color 0.3s;
}

.stage[data-mode="dark"] {
  --stage-bg: var(--stage-dark);
  --stage-ink: #e6edf3;
  --stage-line: #30363d;
}

.stage-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 10px 8px 18px;
  border-bottom: 1px solid var(--stage-line);
  transition: border-color 0.3s;
}

.stage-title {
  overflow: hidden;
  font: 500 0.8125rem/1.2 var(--mono);
  white-space: nowrap;
  text-overflow: ellipsis;
}

.stage-actions {
  display: flex;
  flex: none;
  gap: 6px;
}

.stage-body {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 240px;
  padding: clamp(18px, 4vw, 48px) clamp(10px, 3vw, 40px);
}

.stage-body img {
  transition: opacity 0.2s;
}

.stage[aria-busy="true"] .stage-body img {
  opacity: 0.35;
}

.stage-error {
  margin: 0;
  max-width: 34em;
  color: #c4322b;
  text-align: center;
}

.controls {
  display: grid;
  gap: 28px;
  margin-top: 28px;
}

.control {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.control legend,
.control .legend {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 10px;
  padding: 0;
  font-weight: 600;
  font-size: 0.925rem;
}

.control legend code,
.control .legend code {
  padding: 0;
  background: none;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 400;
}

.control-row {
  display: grid;
  grid-template-columns: max-content max-content minmax(180px, 1fr) max-content;
  gap: 28px 36px;
  align-items: start;
}

/* visually hidden radio inputs, styled through their labels */
.effects input,
.palettes input,
.segmented input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.effects {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 10px;
}

.effect {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}

.effect:hover {
  border-color: color-mix(in srgb, var(--moss) 45%, var(--line));
  transform: translateY(-1px);
}

.effect-name {
  display: flex;
  align-items: center;
  gap: 8px;
  font: 700 0.975rem/1.2 var(--mono);
  letter-spacing: -0.01em;
}

.effect-name::before {
  content: "";
  width: 11px;
  height: 11px;
  border-radius: 2px;
  background: var(--p0);
  box-shadow: inset 0 0 0 1px var(--line);
  transition: background-color 0.2s;
}

.effect-desc {
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.45;
}

.effect:has(input:checked) {
  border-color: var(--moss);
  box-shadow: 0 0 0 1px var(--moss) inset;
}

.effect:has(input:checked) .effect-name::before {
  background: var(--p3);
  box-shadow: none;
}

.effect:has(input:focus-visible),
.swatch:has(input:focus-visible),
.segmented label:has(input:focus-visible) {
  outline: 2px solid var(--moss);
  outline-offset: 3px;
}

.palettes {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.swatch {
  display: inline-flex;
  flex-direction: column;
  gap: 7px;
  padding: 8px 9px 7px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.swatch:hover {
  border-color: var(--muted);
}

.swatch:has(input:checked) {
  border-color: var(--ink);
  box-shadow: 0 0 0 1px var(--ink) inset;
}

.swatch-cells {
  display: flex;
  gap: 2px;
  padding: 3px;
  border-radius: 4px;
}

.swatch-cells i {
  width: 9px;
  height: 9px;
  border-radius: 2px;
}

.swatch-name {
  font: 500 0.75rem/1 var(--mono);
  color: var(--muted);
}

.swatch:has(input:checked) .swatch-name {
  color: var(--ink);
}

.segmented {
  display: inline-flex;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
}

.segmented label {
  position: relative;
  border-radius: 999px;
  cursor: pointer;
}

.segmented span {
  display: block;
  padding: 8px 16px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 600;
  transition: background-color 0.15s, color 0.15s;
}

.segmented input:checked + span {
  background: var(--ink);
  color: var(--paper);
}

.speed {
  display: flex;
  align-items: center;
  gap: 14px;
  height: 42px;
}

.speed input {
  flex: 1;
  min-width: 0;
  accent-color: var(--moss);
}

.speed output {
  min-width: 3.4em;
  font: 600 0.95rem/1 var(--mono);
  text-align: right;
}

.check {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  color: var(--muted);
  font-size: 0.925rem;
  cursor: pointer;
}

.check input {
  flex: none;
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--moss);
}

/* ---------- setup ---------- */

.steps {
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.step {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(0, 1.9fr);
  gap: 20px 40px;
  align-items: start;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--card);
  counter-increment: step;
}

.step-text {
  position: relative;
  padding-left: 46px;
}

.step-text::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 7px;
  background: var(--p3);
  color: #fff;
  font: 700 0.9rem/1 var(--mono);
}

@media (prefers-color-scheme: dark) {
  .step-text::before {
    color: #04260f;
    background: var(--p4);
  }
}

.step h3 {
  margin: 2px 0 8px;
  font-size: 1.15rem;
  letter-spacing: -0.015em;
}

.step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.step p code {
  white-space: normal;
  word-break: break-word;
}

.step p strong {
  color: var(--ink);
  font-weight: 600;
}

.step:not(:has(.code)) {
  grid-template-columns: 1fr;
}

.step:not(:has(.code)) .step-text {
  max-width: 720px;
}

.text-link {
  display: inline-block;
  margin-top: 12px;
  color: var(--moss);
  font-weight: 600;
  font-size: 0.925rem;
  text-decoration: none;
}

.text-link:hover {
  text-decoration: underline;
}

.code {
  min-width: 0;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--code-bg);
  color: var(--code-ink);
}

.code-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 6px 6px 16px;
  border-bottom: 1px solid var(--code-line);
  color: #8894ab;
  font: 500 0.78rem/1 var(--mono);
}

.btn-code {
  min-height: 30px;
  padding: 0 14px;
  border-color: #2b3550;
  background: #172036;
  color: #e6ecf7;
  font-size: 0.8125rem;
}

.btn-code:hover {
  background: #1f2a45;
}

.btn-code[data-copied] {
  border-color: #2ea043;
  background: #1a3b26;
  color: #7ee2a0;
}

.code pre {
  margin: 0;
  padding: 16px 0;
  overflow-x: auto;
  font-size: 0.8125rem;
  line-height: 1.65;
  tab-size: 2;
}

.code pre code {
  display: block;
  width: max-content;
  min-width: 100%;
  font-size: inherit;
}

.code .ln {
  display: block;
  padding: 0 18px;
}

.code .ln.dyn {
  background: rgba(57, 211, 83, 0.1);
  box-shadow: inset 2px 0 0 #39d353;
}

.tok-k { color: #8ab4ff; }
.tok-s { color: #a5e3a0; }
.tok-v { color: #f2c66d; }
.tok-c { color: #6b7790; }
.tok-t { color: #ff9b8a; }
.tok-a { color: #c7a6ff; }
.tok-o { color: #e6ecf7; }
.tok-q { color: #7ee2a0; }

/* ---------- gallery ---------- */

.gallery-list {
  display: grid;
  gap: 16px;
}

.gallery-item {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(0, 2.6fr);
  gap: 20px 36px;
  align-items: center;
  padding: 24px 28px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--card);
}

.gallery-item h3 {
  margin: 0;
  font: 700 1.35rem/1.2 var(--mono);
  letter-spacing: -0.02em;
}

.gallery-item p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.gallery-item .query {
  display: inline-block;
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.8rem;
}

.gallery-item .text-link {
  display: block;
  width: fit-content;
  margin-top: 14px;
  padding: 0;
  border: 0;
  background: none;
  font-family: inherit;
  cursor: pointer;
}

.gallery-media {
  display: grid;
  place-items: center;
  min-height: 150px;
  padding: 12px;
  border-radius: 10px;
  background: var(--stage-light);
  box-shadow: inset 0 0 0 1px #d0d7de;
}

@media (prefers-color-scheme: dark) {
  .gallery-media {
    background: var(--stage-dark);
    box-shadow: inset 0 0 0 1px #30363d;
  }
}

/* ---------- outro + footer ---------- */

.outro-inner {
  display: grid;
  justify-items: center;
  text-align: center;
}

.outro p {
  max-width: 30em;
  margin: 14px 0 28px;
  color: var(--muted);
  font-size: 1.075rem;
}

.footer {
  padding: 36px 0 48px;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
}

.footer-inner {
  display: grid;
  gap: 6px;
}

.footer p {
  margin: 0;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 40;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.9rem;
  font-weight: 600;
  opacity: 0;
  transform: translate(-50%, 12px);
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
}

.toast[data-show] {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ---------- responsive ---------- */

@media (max-width: 1000px) {
  .control-row {
    grid-template-columns: 1fr 1fr;
  }

  .step,
  .gallery-item {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
  }

  .nav-inner {
    justify-content: space-between;
  }

  .headline br {
    display: none;
  }

  .cta .btn {
    flex: 1 1 auto;
  }

  .frame-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 10px 8px;
  }

  .frame-path {
    padding-left: 8px;
  }

  .frame-body,
  .stage-body {
    min-height: 0;
  }

  .control-row {
    grid-template-columns: 1fr;
  }

  .effects {
    grid-template-columns: 1fr 1fr;
  }

  .effect {
    padding: 12px;
  }

  .stage-bar {
    padding-left: 12px;
  }

  .stage-title {
    display: none;
  }

  .stage-actions {
    flex: 1;
  }

  .stage-actions .btn {
    flex: 1;
  }

  .step {
    padding: 20px 16px;
  }

  .step-text {
    padding-left: 42px;
  }

  .gallery-item {
    padding: 18px 16px;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}