:root {
  --gz-bg: #05070d;
  --gz-panel: #09111d;
  --gz-panel-2: #0d1825;
  --gz-text: #eef7f8;
  --gz-muted: #82949f;
  --gz-line: rgba(139, 197, 207, 0.17);
  --gz-cyan: #45f0df;
  --gz-blue: #5b8cff;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html {
  min-height: 100%;
  background: var(--gz-bg);
}

body {
  max-width: none !important;
  min-height: 100vh;
  margin: 0 !important;
  padding: 0 !important;
  color: var(--gz-text);
  background:
    radial-gradient(circle at 84% 8%, rgba(31, 144, 166, .14), transparent 32rem),
    linear-gradient(rgba(69, 240, 223, .022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(69, 240, 223, .022) 1px, transparent 1px),
    var(--gz-bg) !important;
  background-size: auto, 48px 48px, 48px 48px, auto !important;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif !important;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1000;
  pointer-events: none;
  opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.gz-tool-header {
  position: fixed;
  z-index: 900;
  inset: 0 0 auto;
  height: 72px;
  padding: 0 28px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  color: var(--gz-text);
  border-bottom: 1px solid var(--gz-line);
  background: rgba(5, 9, 15, .9);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 50px rgba(0, 0, 0, .22);
}

.gz-tool-brand {
  width: fit-content;
  display: flex;
  align-items: center;
  gap: 11px;
  color: var(--gz-text) !important;
  text-decoration: none !important;
}

.gz-tool-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  color: #041312;
  background: var(--gz-cyan);
  clip-path: polygon(0 0, 78% 0, 100% 22%, 100% 100%, 22% 100%, 0 78%);
  box-shadow: 0 0 24px rgba(69, 240, 223, .26);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: -.08em;
}

.gz-tool-brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.gz-tool-brand-copy strong {
  font-size: 12px;
  letter-spacing: .19em;
}

.gz-tool-brand-copy small {
  margin-top: 6px;
  color: #66808a;
  font: 6px/1 Consolas, monospace;
  letter-spacing: .2em;
}

.gz-tool-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.gz-tool-nav a {
  padding: 8px 12px !important;
  color: #8699a3 !important;
  border: 1px solid transparent !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
  text-decoration: none;
  font-size: 11px !important;
  font-weight: 500 !important;
  transition: color .18s ease, border-color .18s ease, background .18s ease !important;
}

.gz-tool-nav a:hover {
  color: var(--gz-cyan) !important;
  border-color: rgba(69, 240, 223, .2) !important;
  background: rgba(69, 240, 223, .045) !important;
  transform: none !important;
}

.gz-tool-status {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 8px;
  color: #688983;
  font: 8px/1 Consolas, monospace;
  letter-spacing: .13em;
}

.gz-tool-status i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gz-cyan);
  box-shadow: 0 0 9px var(--gz-cyan);
  animation: gz-pulse 1.8s ease-in-out infinite;
}

.container {
  width: min(1400px, calc(100% - 48px)) !important;
  max-width: 1400px !important;
  min-height: 100vh;
  margin: 0 auto !important;
  padding: 112px 0 48px !important;
  color: var(--gz-text) !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
}

.container > h1 {
  margin: 0 0 28px !important;
  color: var(--gz-text) !important;
  text-align: left !important;
  font-size: clamp(30px, 4vw, 54px) !important;
  font-weight: 620 !important;
  letter-spacing: -.055em;
}

.container > h1::before {
  content: "/ GZ TOOL  ";
  display: block;
  margin-bottom: 10px;
  color: #56a7a2;
  font: 8px/1 Consolas, monospace;
  letter-spacing: .17em;
}

.section,
.panel,
.view-panel,
.controls-section,
.upload-section {
  color: var(--gz-text) !important;
  border: 1px solid var(--gz-line) !important;
  border-radius: 0 !important;
  background: linear-gradient(145deg, rgba(13, 28, 42, .94), rgba(7, 13, 22, .92)) !important;
  box-shadow: none !important;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
}

h1, h2, h3, label, strong { color: var(--gz-text) !important; }
p, small, .hint, .empty-result { color: var(--gz-muted) !important; }

.upload-area,
.drop-zone {
  border-color: rgba(69, 240, 223, .25) !important;
  border-radius: 0 !important;
  color: var(--gz-muted) !important;
  background: rgba(69, 240, 223, .025) !important;
}

.upload-area:hover,
.upload-area.dragover,
.drop-zone.dragover {
  border-color: var(--gz-cyan) !important;
  background: rgba(69, 240, 223, .065) !important;
}

input,
select,
textarea {
  color: var(--gz-text) !important;
  border-color: rgba(131, 181, 192, .2) !important;
  border-radius: 3px !important;
  background: #070d15 !important;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--gz-cyan) !important;
  outline: none !important;
  box-shadow: 0 0 0 2px rgba(69, 240, 223, .08) !important;
}

button,
.btn {
  color: #dbe8ea !important;
  border: 1px solid rgba(105, 173, 184, .22) !important;
  border-radius: 2px !important;
  background: #0d1b27 !important;
  box-shadow: none !important;
}

button:hover:not(:disabled),
.btn:hover:not(:disabled) {
  color: #041312 !important;
  border-color: var(--gz-cyan) !important;
  background: var(--gz-cyan) !important;
  transform: translateY(-1px);
}

.btn-primary,
.btn-export,
.btn-success {
  color: #041312 !important;
  border-color: var(--gz-cyan) !important;
  background: var(--gz-cyan) !important;
}

.result-viewport,
.preview-viewport {
  border: 1px solid var(--gz-line) !important;
}

.controls,
.sidebar,
.screenshot-sidebar,
.info-panel {
  color: var(--gz-text) !important;
  border-color: var(--gz-line) !important;
  background: rgba(7, 14, 23, .94) !important;
  backdrop-filter: blur(16px);
}

/* Image slicer: replace the original pastel option cards with the GZ LAB palette. */
.image-slicer-tool .analyze-options,
.image-slicer-tool .display-settings,
.image-slicer-tool .sequence-player {
  color: var(--gz-text) !important;
  border: 1px solid rgba(69, 240, 223, .2) !important;
  border-radius: 2px !important;
  background:
    linear-gradient(90deg, rgba(69, 240, 223, .055), transparent 38%),
    rgba(6, 14, 23, .88) !important;
  box-shadow: inset 3px 0 0 rgba(69, 240, 223, .58) !important;
}

.image-slicer-tool .display-settings {
  border-color: rgba(89, 143, 255, .24) !important;
  background:
    linear-gradient(90deg, rgba(89, 143, 255, .06), transparent 38%),
    rgba(6, 14, 23, .88) !important;
  box-shadow: inset 3px 0 0 rgba(89, 143, 255, .62) !important;
}

.image-slicer-tool .analyze-options h3,
.image-slicer-tool .display-settings h3,
.image-slicer-tool .sequence-player h3,
.image-slicer-tool .detection-result h3 {
  color: var(--gz-cyan) !important;
  letter-spacing: .04em;
}

.image-slicer-tool .form-group label,
.image-slicer-tool .checkbox-group label,
.image-slicer-tool .frame-info,
.image-slicer-tool .frame-label,
.image-slicer-tool .range-status {
  color: #c9dadd !important;
}

.image-slicer-tool input[type="checkbox"] {
  accent-color: var(--gz-cyan);
}

.image-slicer-tool .crop-preview,
.image-slicer-tool .frame-display {
  color: var(--gz-text) !important;
  border: 1px solid rgba(131, 181, 192, .16) !important;
  border-radius: 2px !important;
  background: rgba(3, 9, 15, .78) !important;
  box-shadow: none !important;
}

.image-slicer-tool .crop-item {
  color: var(--gz-text) !important;
  border: 1px solid rgba(69, 240, 223, .32) !important;
  border-radius: 2px !important;
  background: #09131e !important;
  box-shadow: none !important;
}

.image-slicer-tool .crop-item:hover {
  border-color: var(--gz-cyan) !important;
  box-shadow: 0 0 22px rgba(69, 240, 223, .1) !important;
}

.image-slicer-tool .crop-item .label {
  color: #91eee5 !important;
}

.image-slicer-tool .crop-item .crop-info {
  color: #071110 !important;
  background: var(--gz-cyan) !important;
}

.image-slicer-tool .info-box,
.image-slicer-tool .browser-tip,
.image-slicer-tool .error-message {
  color: #b9cdd1 !important;
  border: 1px solid rgba(69, 240, 223, .18) !important;
  border-left: 3px solid var(--gz-cyan) !important;
  border-radius: 0 2px 2px 0 !important;
  background: rgba(7, 18, 26, .92) !important;
}

.image-slicer-tool .info-box p,
.image-slicer-tool .browser-tip {
  color: #a9c1c5 !important;
}

.image-slicer-tool .error-message {
  color: #ffaaa7 !important;
  border-color: rgba(255, 101, 96, .2) !important;
  border-left-color: #ff6560 !important;
  background: rgba(47, 13, 18, .78) !important;
}

.image-slicer-tool #previewCanvas,
.image-slicer-tool #sequenceCanvas {
  border-color: rgba(69, 240, 223, .4) !important;
  border-radius: 2px !important;
}

.image-slicer-tool .upload-area p,
.image-slicer-tool .upload-area p[style] {
  color: #9db1b6 !important;
}

.drop-zone,
#canvas,
#overlayCanvas {
  top: 72px !important;
  height: calc(100vh - 72px) !important;
}

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: #071019; }
::-webkit-scrollbar-thumb { background: #24434a; }
::-webkit-scrollbar-thumb:hover { background: #326268; }

@keyframes gz-pulse {
  0%, 100% { opacity: .35; }
  50% { opacity: 1; }
}

@media (max-width: 860px) {
  .gz-tool-header {
    height: 64px;
    padding: 0 16px;
    grid-template-columns: auto 1fr;
  }

  .gz-tool-mark { width: 34px; height: 34px; }
  .gz-tool-brand-copy { display: none; }
  .gz-tool-status { display: none; }

  .gz-tool-nav {
    min-width: 0;
    justify-self: end;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .gz-tool-nav::-webkit-scrollbar { display: none; }
  .gz-tool-nav a { flex: 0 0 auto; padding: 7px 8px !important; font-size: 10px !important; }

  .container {
    width: calc(100% - 28px) !important;
    padding-top: 92px !important;
  }

  .container > h1 { font-size: 36px !important; }
  .section, .panel, .view-panel, .controls-section { padding: 16px !important; }

  .drop-zone,
  #canvas,
  #overlayCanvas {
    top: 64px !important;
    height: calc(100vh - 64px) !important;
  }
}