/* ─────────────────────────────────────────────
   FalSprite — dark pixel-forge aesthetic
   ───────────────────────────────────────────── */

:root {
  --bg:              #16161e;
  --surface:         #1e1e28;
  --surface-up:      #262632;
  --border:          #2e2e3a;
  --border-hi:       #3a3a48;
  --text:            #dcdce2;
  --text-dim:        #8e8e9a;
  --text-muted:      #5a5a66;
  --accent:          #e8607a;
  --accent-soft:     rgba(232, 96, 122, 0.12);
  --accent-glow:     rgba(232, 96, 122, 0.25);
  --danger:          #bf3a2a;
  --success:         #26a05e;
  --r-lg:            10px;
  --r-md:            6px;
  --r-sm:            3px;
}

/* ── reset ─────────────────────────────────── */

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

html, body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
}

body {
  font-family: "Space Mono", monospace;
  font-size: 14px;
  color: var(--text);
  background:
    radial-gradient(ellipse 900px 420px at 50% -60px, rgba(232, 96, 122, 0.045) 0%, transparent 100%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--accent);
  color: #fff;
}

::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-hi); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── subtle grid on body ───────────────────── */

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.018) 1px, transparent 1px);
  background-size: 20px 20px;
  pointer-events: none;
  z-index: 0;
}

/* ── noise overlay ─────────────────────────── */

.noise {
  position: fixed;
  inset: 0;
  z-index: 10000;
  pointer-events: none;
  opacity: 0.028;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 256px 256px;
}

/* ── topbar ────────────────────────────────── */

.topbar {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1120px;
  margin: 0 auto;
  padding: 16px 20px;
}

.topbar-brand {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.brand-mark {
  font-family: "Silkscreen", cursive;
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.04em;
}

.brand-sep {
  color: var(--border-hi);
  font-size: 0.85rem;
}

.brand-tag {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: lowercase;
}

.topbar-key-wrap {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}

.topbar-key {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 0 10px;
  transition: border-color 0.2s;
}

.topbar-key:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.key-icon {
  font-size: 0.7rem;
  opacity: 0.4;
}

.topbar-key input {
  background: transparent;
  border: none;
  color: var(--text);
  font-family: "Space Mono", monospace;
  font-size: 0.75rem;
  padding: 8px 0;
  width: 220px;
  outline: none;
}

.topbar-key input::placeholder {
  color: var(--text-muted);
}

.key-saved {
  font-family: "Silkscreen", cursive;
  font-size: 0.5rem;
  font-weight: 700;
  color: var(--success);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0 4px;
  opacity: 1;
  transition: opacity 0.3s;
}

.key-help {
  font-size: 0.6rem;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color 0.15s;
}

.key-help:hover {
  color: var(--accent);
}

/* ── hero ──────────────────────────────────── */

.hero {
  position: relative;
  max-width: 1080px;
  height: clamp(200px, 30vh, 320px);
  margin: 0 auto;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  background:
    radial-gradient(ellipse at 25% 75%, rgba(232, 96, 122, 0.06) 0%, transparent 55%),
    linear-gradient(175deg, #16161e 0%, #1e1e28 100%);
}

.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.6s ease;
  image-rendering: pixelated;
}

.hero-image.is-visible {
  opacity: 0.45;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(22, 22, 30, 0.2) 0%,
    rgba(22, 22, 30, 0.7) 60%,
    rgba(22, 22, 30, 0.95) 100%);
  z-index: 1;
}

.hero-scanlines {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: repeating-linear-gradient(
    0deg,
    transparent 0px,
    transparent 3px,
    rgba(0, 0, 0, 0.07) 3px,
    rgba(0, 0, 0, 0.07) 6px
  );
  pointer-events: none;
}

.hero-content {
  position: absolute;
  bottom: 0;
  left: 0;
  padding: 28px 32px;
  z-index: 3;
}

.hero-content h1 {
  margin: 0;
  font-family: "Silkscreen", cursive;
  font-size: clamp(1.6rem, 5vw, 2.8rem);
  color: var(--text);
  letter-spacing: 0.03em;
  line-height: 1;
  text-shadow: 0 2px 24px rgba(255, 255, 255, 0.15);
}

.hero-sub {
  margin: 10px 0 0;
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.hero-tech {
  margin: 6px 0 0;
  font-size: 0.6rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  opacity: 0.7;
}

.hero-cost {
  margin: 4px 0 0;
  font-size: 0.58rem;
  color: var(--accent);
  letter-spacing: 0.02em;
  opacity: 0.8;
}

.hero-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 3;
  display: flex;
  gap: 6px;
}

.hero-badge span {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--r-sm);
  padding: 3px 7px;
  font-size: 0.6rem;
  font-weight: 700;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ── main ──────────────────────────────────── */

.main {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
  padding: 18px 20px 40px;
}

/* ── prompt section ────────────────────────── */

.prompt-section {
  display: grid;
  gap: 10px;
}

.prompt-box {
  display: flex;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 4px;
  transition: border-color 0.2s;
}

.prompt-box:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.prompt-caret {
  color: var(--text-dim);
  font-size: 1.5rem;
  line-height: 1;
  padding: 0 10px 0 14px;
  user-select: none;
  font-weight: 700;
}

.prompt-box input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text);
  font-family: "Space Mono", monospace;
  font-size: 0.88rem;
  padding: 12px 0;
  min-width: 0;
  outline: none;
}

.prompt-box input::placeholder {
  color: var(--text-muted);
}

.image-preview {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
}

.image-preview img {
  height: 40px;
  width: 40px;
  object-fit: cover;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
}

.image-preview .btn-ghost {
  font-size: 1.1rem;
  padding: 4px 8px;
  line-height: 1;
}

/* ── action chips ──────────────────────────── */

.action-chips {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  padding: 2px 0;
}

.action-label {
  font-family: "Silkscreen", cursive;
  font-size: 0.58rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-right: 2px;
}

.action-counter {
  font-size: 0.6rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  margin-right: 4px;
}

.action-chip {
  font-family: "Space Mono", monospace;
  font-size: 0.68rem;
  font-weight: 400;
  color: var(--text-dim);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 12px;
  cursor: pointer;
  transition: all 0.15s;
}

.action-chip:hover {
  border-color: var(--border-hi);
  color: var(--text);
}

.action-chip.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.action-custom {
  font-family: "Space Mono", monospace;
  font-size: 0.68rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 12px;
  width: 140px;
  outline: none;
  transition: border-color 0.2s;
}

.action-custom:focus {
  border-color: var(--accent);
}

.action-custom::placeholder {
  color: var(--text-muted);
}

.status {
  margin: 0;
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding-left: 2px;
}

.status.error {
  color: var(--danger);
}

.status.success {
  color: var(--success);
}

/* ── buttons ───────────────────────────────── */

button {
  border: none;
  background: none;
  font-family: "Space Mono", monospace;
  cursor: pointer;
  transition: all 0.15s ease;
}

button:disabled {
  opacity: 0.35;
  cursor: wait;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  font-family: "Silkscreen", cursive;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 12px 18px;
  border-radius: var(--r-md);
  text-transform: uppercase;
}

.btn-primary:hover:not(:disabled) {
  box-shadow: 0 0 20px var(--accent-glow), 0 0 40px rgba(224, 120, 32, 0.1);
  filter: brightness(1.1);
}

.btn-outline {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border);
  font-size: 0.75rem;
  padding: 10px 14px;
  border-radius: var(--r-md);
}

.btn-outline:hover:not(:disabled) {
  border-color: var(--border-hi);
  color: var(--text);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  padding: 8px 10px;
  border-radius: var(--r-sm);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.btn-ghost:hover:not(:disabled) {
  color: var(--accent);
}

.btn-ghost svg {
  display: block;
}

.grid-select {
  font-family: "Silkscreen", cursive;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  background: var(--surface-up);
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 8px 10px;
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s;
  -webkit-appearance: none;
  appearance: none;
}

.grid-select:hover,
.grid-select:focus {
  border-color: var(--accent);
  color: var(--text);
}

/* ── result section ────────────────────────── */

.result {
  margin-top: 18px;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 14px;
}

.preview-col,
.detail-col {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
}

.preview-col {
  padding: 12px;
}

.canvas-wrap {
  position: relative;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg);
}

.canvas-wrap canvas {
  display: block;
  width: 100%;
  height: auto;
  image-rendering: pixelated;
  cursor: pointer;
}

/* ── canvas loader ─────────────────────────── */

.canvas-loader {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(22, 22, 30, 0.92);
  border-radius: var(--r-md);
  z-index: 5;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.canvas-loader.is-active {
  opacity: 1;
  pointer-events: auto;
}

.canvas-loader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.canvas-loader-inner span {
  font-family: "Silkscreen", cursive;
  font-size: 0.7rem;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  animation: loaderPulse 2s ease-in-out infinite;
}

.canvas-loader-grid {
  width: 60px;
  height: 60px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
}

.canvas-loader-grid::before,
.canvas-loader-grid::after {
  content: "";
}

.canvas-loader-grid,
.canvas-loader-grid::before,
.canvas-loader-grid::after {
  /* grid children generated via box-shadow trick */
}

/* Use a simpler spinning approach */
.canvas-loader-grid {
  width: 48px;
  height: 48px;
  border: 3px solid var(--border-hi);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: canvasSpin 0.8s linear infinite;
  display: block;
}

@keyframes canvasSpin {
  to { transform: rotate(360deg); }
}

.canvas-scanlines {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent 0px,
    transparent 2px,
    rgba(0, 0, 0, 0.05) 2px,
    rgba(0, 0, 0, 0.05) 4px
  );
  pointer-events: none;
}

.preview-controls {
  margin-top: 10px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.frame-label {
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.03em;
}

.fps-ctrl {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--surface-up);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 0.7rem;
  color: var(--text-muted);
  cursor: default;
}

/* range input */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  background: var(--border);
  height: 3px;
  border-radius: 2px;
  outline: none;
  width: 90px;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  background: var(--accent);
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid var(--surface);
}

input[type="range"]::-moz-range-thumb {
  width: 12px;
  height: 12px;
  background: var(--accent);
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid var(--surface);
}

/* detail column */
.detail-col {
  padding: 14px;
  display: grid;
  gap: 12px;
  align-content: start;
}

.detail-block {
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--surface-up);
  padding: 12px;
}

.detail-block h3 {
  margin: 0 0 8px;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.mono-body {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--text-dim);
  white-space: pre-wrap;
  word-break: break-word;
}

.warning {
  margin: 10px 0 0;
  font-size: 0.78rem;
  color: var(--danger);
}

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

/* ── showcase ──────────────────────────────── */

.showcase {
  margin-top: 10px;
  margin-bottom: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 16px;
}

.showcase-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 14px;
}

.showcase-head h2 {
  margin: 0;
  font-family: "Silkscreen", cursive;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
}

.showcase-sub {
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
}

.showcase-card {
  background: var(--surface-up);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 6px;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.showcase-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 16px var(--accent-soft);
}

.showcase-canvas,
.showcase-gif {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  background: var(--bg);
  image-rendering: pixelated;
}

.showcase-img-wrap {
  position: relative;
}

.showcase-gif-anim {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: var(--r-sm);
  image-rendering: pixelated;
  background: var(--bg);
  border: 1px solid var(--border);
  opacity: 0;
  transition: opacity 0.15s ease;
  pointer-events: none;
}

.showcase-grid-badge {
  position: absolute;
  top: 6px;
  right: 6px;
  background: rgba(0, 0, 0, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #fff;
  font-family: "Silkscreen", cursive;
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 2px 6px;
  border-radius: var(--r-sm);
  pointer-events: none;
}

.showcase-card {
  cursor: pointer;
}

.showcase-card p {
  margin: 6px 2px 0;
  font-size: 0.62rem;
  color: var(--text-muted);
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── showcase overlay ─────────────────────── */

.showcase-overlay {
  position: fixed;
  inset: 0;
  z-index: 50000;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: showcaseFadeIn 0.2s ease;
  cursor: pointer;
}

@keyframes showcaseFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.showcase-overlay-inner {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  max-width: 520px;
  cursor: default;
}

.showcase-overlay-close {
  position: absolute;
  top: 10px;
  right: 14px;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 1.6rem;
  cursor: pointer;
  z-index: 2;
  padding: 0;
  line-height: 1;
}

.showcase-overlay-close:hover {
  color: var(--accent);
}

.showcase-overlay-img-wrap {
  position: relative;
  width: 100%;
  max-width: 460px;
  aspect-ratio: 1;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: var(--bg);
  overflow: hidden;
  cursor: pointer;
}

.showcase-overlay-static,
.showcase-overlay-anim {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  image-rendering: pixelated;
  object-fit: contain;
  transition: opacity 0.2s ease;
}

.showcase-overlay-static {
  opacity: 1;
}

.showcase-overlay-anim {
  opacity: 0;
}

.showcase-overlay > .showcase-overlay-inner > img {
  display: block;
  width: 100%;
  max-width: 460px;
  height: auto;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: var(--bg);
  image-rendering: pixelated;
}

.showcase-overlay-info {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
}

.showcase-overlay-badge {
  background: var(--accent);
  color: #fff;
  font-family: "Silkscreen", cursive;
  font-size: 0.6rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--r-sm);
  letter-spacing: 0.06em;
  flex-shrink: 0;
}

.showcase-overlay-prompt {
  font-size: 0.72rem;
  color: var(--text-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── history ───────────────────────────────── */

.history {
  margin-top: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 14px;
}

.history-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 12px;
}

.history-head h2 {
  margin: 0;
  font-family: "Silkscreen", cursive;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.history-sub {
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

.history-strip {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(150px, 200px);
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.history-card {
  background: var(--surface-up);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 6px;
  transition: border-color 0.2s;
}

.history-card:hover {
  border-color: var(--accent);
}

.history-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  background: var(--bg);
  image-rendering: pixelated;
}

.history-card p {
  margin: 6px 2px 0;
  font-size: 0.65rem;
  color: var(--text-muted);
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── loader ────────────────────────────────── */

.loader {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  transition: opacity 0.45s ease, visibility 0.45s ease;
}

.loader.is-gone {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.loader-brand {
  font-family: "Silkscreen", cursive;
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.05em;
  animation: loaderPulse 2s ease-in-out infinite;
}

@keyframes loaderPulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.4; }
}

.loader-blocks {
  display: flex;
  gap: 5px;
}

.loader-blocks span {
  display: block;
  width: 8px;
  height: 8px;
  background: var(--border);
  animation: blockLight 1.2s ease-in-out infinite;
}

.loader-blocks span:nth-child(1) { animation-delay: 0s; }
.loader-blocks span:nth-child(2) { animation-delay: 0.1s; }
.loader-blocks span:nth-child(3) { animation-delay: 0.2s; }
.loader-blocks span:nth-child(4) { animation-delay: 0.3s; }
.loader-blocks span:nth-child(5) { animation-delay: 0.4s; }
.loader-blocks span:nth-child(6) { animation-delay: 0.5s; }

@keyframes blockLight {
  0%, 60%, 100% { background: var(--border); transform: scale(1); }
  30%           { background: var(--accent); transform: scale(1.25); }
}

/* ── utility ───────────────────────────────── */

.hidden {
  display: none !important;
}

/* ── entrance animations ───────────────────── */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.topbar        { animation: fadeUp 0.5s ease both; }
.hero          { animation: fadeUp 0.5s ease 0.05s both; }
.prompt-section{ animation: fadeUp 0.5s ease 0.1s both; }
.result        { animation: fadeUp 0.4s ease both; }
.history       { animation: fadeUp 0.4s ease 0.05s both; }

/* ── responsive ────────────────────────────── */

@media (max-width: 900px) {
  .result {
    grid-template-columns: 1fr;
  }

  .prompt-box {
    flex-wrap: wrap;
  }

  .prompt-box input {
    min-width: 100%;
    order: -1;
    padding: 12px 12px 12px 0;
  }

  .prompt-caret {
    display: none;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .topbar-key-wrap {
    width: 100%;
    align-items: flex-start;
  }

  .topbar-key {
    width: 100%;
  }

  .topbar-key input {
    width: 100%;
  }

  .hero-content h1 {
    font-size: 1.4rem;
  }
}

@media (max-width: 480px) {
  .hero {
    height: 180px;
    border-radius: var(--r-md);
  }

  .hero-badge {
    display: none;
  }

  .dl-row {
    flex-direction: column;
  }

  .dl-row button {
    width: 100%;
  }
}