@font-face {
  font-family: 'IBM Plex Sans';
  src: url('../fonts/IBMPlexSans-Regular.ttf') format('truetype');
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: 'IBM Plex Sans';
  src: url('../fonts/IBMPlexSans-SemiBold.ttf') format('truetype');
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: 'Space Grotesk';
  src: url('../fonts/SpaceGrotesk-Bold.ttf') format('truetype');
  font-weight: 700;
  font-display: swap;
}

@font-face {
  font-family: 'WenQuanYi Zen Hei';
  src: url('../fonts/WenQuanYiZenHei-Regular.ttf') format('truetype');
  font-weight: 400;
  font-display: swap;
}

:root {
  --bg: #08090b;
  --surface: #111318;
  --surface-raised: #181b21;
  --surface-active: #202631;
  --line: #292e37;
  --line-strong: #3b4554;
  --text: #f4f7fb;
  --muted: #a3abb8;
  --soft: #6f7886;
  --blue: #4aa3ff;
  --blue-dark: #156fca;
  --green: #54d28c;
  --danger: #ff7373;
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.34);
  --radius: 8px;
  --radius-small: 6px;
  --duration-fast: 140ms;
  --duration: 220ms;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--text);
  background: var(--bg);
  font-family: 'IBM Plex Sans', sans-serif;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    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: 48px 48px;
  mask-image: linear-gradient(to bottom, black 0, transparent 68%);
}

button,
input,
canvas {
  font: inherit;
}

button,
input {
  outline: none;
}

button:focus-visible,
input:focus-visible,
a:focus-visible,
label:focus-within {
  box-shadow: 0 0 0 3px rgba(74, 163, 255, 0.28);
}

button {
  letter-spacing: 0;
}

.app-shell {
  width: min(100%, 1680px);
  margin: 0 auto;
  padding: 20px 20px 96px;
  position: relative;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 360ms var(--ease), transform 360ms var(--ease);
}

body.is-ready .app-shell {
  opacity: 1;
  transform: none;
}

.topbar {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(17, 19, 24, 0.94);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.brand-lockup {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  display: grid;
  place-items: center;
  border: 1px solid #2d76bc;
  border-radius: var(--radius-small);
  color: #d9edff;
  background: #0c4a86;
  box-shadow: inset 0 0 16px rgba(90, 183, 255, 0.34);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 26px;
  font-weight: 700;
}

.brand-eyebrow,
.panel-kicker,
.meta-label,
.template-current__label {
  margin: 0;
  color: var(--soft);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
}

.brand-name,
.panel-title {
  margin: 0;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  letter-spacing: 0;
}

.brand-name {
  margin-top: 2px;
  font-size: 28px;
  line-height: 1;
}

.topbar-meta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.status-pill {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  color: var(--muted);
  background: #15181e;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.status-pill--meta {
  color: #cbd2dc;
}

.status-pill--editor {
  color: #07111b;
  border-color: #68b4ff;
  background: #75bbff;
  transition: background var(--duration-fast), transform var(--duration-fast);
}

.status-pill--editor:hover {
  background: #9bceff;
  transform: translateY(-1px);
}

.workspace {
  display: grid;
  grid-template-columns: 244px minmax(520px, 1fr) 300px;
  gap: 16px;
  align-items: start;
  margin-top: 16px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(17, 19, 24, 0.96);
  box-shadow: var(--shadow);
}

.template-rail,
.inspector,
.preview-panel {
  padding: 18px;
}

.template-rail,
.inspector {
  position: sticky;
  top: 16px;
}

.panel-section {
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.panel-section:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: 0;
}

.panel-section--tight {
  padding-bottom: 14px;
}

.panel-title {
  margin-top: 4px;
  font-size: 20px;
  line-height: 1.2;
}

.template-current {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: #15181e;
}

.template-current__value {
  display: block;
  margin-top: 5px;
  overflow-wrap: anywhere;
  font-size: 14px;
}

.language-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 12px;
}

.language-chip,
.vip-chip,
.segment {
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  color: var(--muted);
  background: #15181e;
  cursor: pointer;
  transition:
    border-color var(--duration-fast),
    color var(--duration-fast),
    background var(--duration-fast),
    transform var(--duration-fast);
}

.language-chip {
  min-width: 0;
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 0 8px;
  font-size: 12px;
  font-weight: 600;
}

.language-chip__flag {
  color: var(--blue);
  font-size: 10px;
}

.language-chip__label {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.language-chip:hover,
.vip-chip:hover,
.segment:hover {
  color: var(--text);
  border-color: var(--line-strong);
  transform: translateY(-1px);
}

.language-chip.is-active,
.vip-chip.is-active,
.segment.is-active {
  color: #e9f5ff;
  border-color: #358bdc;
  background: #163e65;
}

.vip-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 12px;
}

.vip-chip {
  min-height: 39px;
  padding: 0 8px;
  font-size: 13px;
  font-weight: 600;
}

.preview-column {
  min-width: 0;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.action-row,
.size-row {
  display: flex;
  gap: 8px;
}

.btn {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  border: 1px solid transparent;
  border-radius: var(--radius-small);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition:
    background var(--duration-fast),
    border-color var(--duration-fast),
    transform var(--duration-fast);
}

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

.btn--primary {
  color: #061422;
  border-color: #66b4ff;
  background: #57aaff;
}

.btn--primary:hover {
  background: #7abaff;
}

.btn--secondary {
  color: #d5dbe4;
  border-color: var(--line-strong);
  background: #1b1f26;
}

.btn--secondary:hover {
  border-color: #536071;
  background: #242a33;
}

.btn--small {
  min-height: 36px;
  flex: 1 1 0;
}

.btn--block {
  width: 100%;
}

.canvas-frame {
  width: min(100%, 720px);
  margin: 0 auto;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-small);
  background: #050608;
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.46);
  transition: opacity var(--duration), transform var(--duration);
}

.canvas-frame.is-transitioning {
  opacity: 0.7;
  transform: scale(0.994);
}

.canvas-frame canvas {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 1086 / 1448;
}

.editor-mode .canvas-frame canvas {
  touch-action: none;
}

.canvas-overlay {
  position: absolute;
  inset: 0;
  display: none;
  place-items: center;
  padding: 20px;
  background: rgba(5, 6, 8, 0.72);
  backdrop-filter: blur(5px);
}

.canvas-overlay.is-visible {
  display: grid;
}

.loading-card {
  min-width: 174px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #111318;
  text-align: center;
}

.loading-card p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.loading-card--error p {
  margin: 0 0 12px;
  color: var(--danger);
}

.spinner {
  width: 24px;
  height: 24px;
  margin: 0 auto;
  border: 2px solid #303640;
  border-top-color: var(--blue);
  border-radius: 50%;
  animation: spin 800ms linear infinite;
}

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

.preview-meta {
  display: flex;
  justify-content: center;
  gap: 1px;
  margin-top: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: var(--line);
}

.preview-meta__block {
  min-width: 0;
  flex: 1 1 0;
  padding: 10px 12px;
  background: #15181e;
  text-align: center;
}

.meta-value {
  display: block;
  margin-top: 3px;
  font-size: 13px;
}

.status-strip {
  margin-top: 12px;
  padding: 10px 12px;
  border: 1px solid #315f88;
  border-radius: var(--radius-small);
  color: #beddff;
  background: #102b43;
  font-size: 12px;
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.section-heading h3 {
  margin: 0;
  font-size: 15px;
  letter-spacing: 0;
}

.mini-badge {
  max-width: 132px;
  padding: 4px 7px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--soft);
  background: #15181e;
  font-size: 10px;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mini-badge--live {
  color: #a9f2ca;
  border-color: #2e7250;
  background: #123422;
}

.file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.upload-field {
  min-height: 72px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 12px;
  overflow: hidden;
  border: 1px dashed #465365;
  border-radius: var(--radius-small);
  background: #15181e;
  cursor: pointer;
  transition: border-color var(--duration-fast), background var(--duration-fast);
}

.upload-field:hover {
  border-color: var(--blue);
  background: #172433;
}

.upload-field__title {
  color: #dce3ed;
  font-size: 13px;
  font-weight: 600;
}

.upload-field__status {
  overflow: hidden;
  color: var(--soft);
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.field-label {
  display: block;
  margin: 0 0 7px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.uid-input-wrap {
  height: 44px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-small);
  background: #0d0f13;
}

.uid-prefix {
  padding-left: 12px;
  color: #d9e0e9;
  font-family: 'WenQuanYi Zen Hei', sans-serif;
  font-size: 14px;
}

.text-input {
  width: 100%;
  height: 100%;
  min-width: 0;
  padding: 0 12px 0 6px;
  border: 0;
  color: var(--text);
  background: transparent;
  font-family: 'WenQuanYi Zen Hei', sans-serif;
  font-size: 14px;
}

.text-input::placeholder {
  color: #596270;
}

.editor-stack {
  display: grid;
  gap: 16px;
}

.segmented-control {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
}

.segment {
  min-height: 38px;
  padding: 0 8px;
  font-size: 12px;
  font-weight: 600;
}

.nudge-grid {
  width: 132px;
  height: 92px;
  display: grid;
  grid-template-columns: repeat(3, 40px);
  grid-template-rows: repeat(2, 40px);
  gap: 6px;
  margin: 0 auto;
}

.nudge-btn {
  position: relative;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-small);
  background: #1b1f26;
  cursor: pointer;
}

.nudge-btn:hover {
  background: #252b34;
}

.nudge-btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8px;
  height: 8px;
  border-top: 2px solid #cdd5e0;
  border-left: 2px solid #cdd5e0;
}

.nudge-btn--up {
  grid-column: 2;
  transform: none;
}

.nudge-btn--up::before {
  transform: translate(-50%, -28%) rotate(45deg);
}

.nudge-btn--left {
  grid-column: 1;
  grid-row: 2;
}

.nudge-btn--left::before {
  transform: translate(-28%, -50%) rotate(-45deg);
}

.nudge-btn--right {
  grid-column: 3;
  grid-row: 2;
}

.nudge-btn--right::before {
  transform: translate(-72%, -50%) rotate(135deg);
}

.nudge-btn--down {
  grid-column: 2;
  grid-row: 2;
}

.nudge-btn--down::before {
  transform: translate(-50%, -72%) rotate(225deg);
}

.coords-box {
  margin: 0;
  padding: 12px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  color: #bcd7f2;
  background: #0b0d10;
  font-size: 11px;
  line-height: 1.55;
  white-space: pre-wrap;
}

.footer-note {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 16px;
  padding: 0 2px;
  color: var(--soft);
  font-size: 11px;
}

.speed-cache-bar {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 30;
  width: min(360px, calc(100vw - 36px));
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 12px;
  padding: 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: rgba(17, 19, 24, 0.96);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  transition: opacity var(--duration), transform var(--duration);
}

.speed-cache-bar[data-state='ready'] {
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition-delay: 1200ms;
}

.speed-cache-bar__meta {
  min-width: 0;
  display: flex;
  gap: 8px;
  align-items: baseline;
}

.speed-cache-bar__title {
  color: #dfe6ef;
  font-size: 12px;
  white-space: nowrap;
}

.speed-cache-bar__text {
  min-width: 0;
  overflow: hidden;
  color: var(--soft);
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.speed-cache-bar__count {
  color: var(--muted);
  font-size: 11px;
}

.speed-cache-bar__track {
  grid-column: 1 / -1;
  height: 3px;
  overflow: hidden;
  border-radius: 2px;
  background: #2a3039;
}

.speed-cache-bar__fill {
  width: 0;
  height: 100%;
  display: block;
  background: var(--green);
  transition: width var(--duration);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 40;
  max-width: calc(100vw - 32px);
  padding: 10px 14px;
  border: 1px solid #357554;
  border-radius: var(--radius-small);
  color: #cef2dd;
  background: #153624;
  box-shadow: var(--shadow);
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 10px);
  transition: opacity var(--duration), transform var(--duration);
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.toast[data-tone='error'] {
  color: #ffd3d3;
  border-color: #7b3939;
  background: #3c1a1a;
}

.toast[data-tone='info'] {
  color: #d5eaff;
  border-color: #315f88;
  background: #102b43;
}

[hidden] {
  display: none !important;
}

@media (max-width: 1240px) {
  .workspace {
    grid-template-columns: 220px minmax(480px, 1fr);
  }

  .inspector {
    position: static;
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 18px;
  }

  .inspector > .panel-section:first-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 820px) {
  .app-shell {
    padding: 12px 12px 88px;
  }

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

  .topbar-meta {
    width: 100%;
    justify-content: flex-start;
  }

  .status-pill--meta {
    display: none;
  }

  .workspace {
    grid-template-columns: 1fr;
    gap: 12px;
    margin-top: 12px;
  }

  .template-rail,
  .inspector {
    position: static;
  }

  .template-rail {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 12px;
  }

  .template-rail .panel-section,
  .template-current {
    grid-column: 1 / -1;
  }

  .language-grid,
  .vip-grid {
    margin-top: 0;
  }

  .vip-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .preview-column {
    grid-row: 2;
  }

  .inspector {
    grid-row: 3;
    grid-column: 1;
  }
}

@media (max-width: 580px) {
  .brand-mark {
    width: 40px;
    height: 40px;
    flex-basis: 40px;
    font-size: 22px;
  }

  .brand-name {
    font-size: 24px;
  }

  .brand-eyebrow {
    font-size: 9px;
  }

  .status-pill {
    min-height: 34px;
    max-width: 100%;
    padding: 0 10px;
    overflow: hidden;
    font-size: 12px;
    text-overflow: ellipsis;
  }

  .template-rail,
  .inspector,
  .preview-panel {
    padding: 14px;
  }

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

  .template-rail .panel-section,
  .template-current {
    grid-column: 1;
  }

  .language-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .vip-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .vip-chip {
    min-height: 36px;
    font-size: 11px;
  }

  .panel-head {
    align-items: stretch;
    flex-direction: column;
  }

  .action-row {
    width: 100%;
  }

  .action-row .btn {
    flex: 1 1 0;
  }

  .inspector {
    display: block;
  }

  .preview-meta {
    flex-direction: column;
  }

  .footer-note {
    flex-direction: column;
  }

  .speed-cache-bar {
    right: 12px;
    bottom: 12px;
    width: calc(100vw - 24px);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}