:root {
  color-scheme: light;
  --font-display: "Bahnschrift SemiCondensed", "Arial Narrow", "Segoe UI", sans-serif;
  --font-body: Aptos, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-data: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  --bg: #f4f6f7;
  --bg-deep: #e9edf1;
  --panel: rgba(252, 253, 253, 0.9);
  --panel-solid: #fcfdfd;
  --surface: #f0f3f6;
  --surface-hover: #e9eef3;
  --text: #121722;
  --text-soft: #4c5668;
  --text-muted: #5f6b7d;
  --border: #d8dee8;
  --border-strong: #aeb9c9;
  --blue: #3157d5;
  --blue-action: #3157d5;
  --blue-soft: rgba(49, 87, 213, 0.11);
  --orange: #c94728;
  --orange-action: #c94728;
  --orange-hover: #b83c20;
  --orange-soft: rgba(201, 71, 40, 0.12);
  --teal: #0f766e;
  --danger: #c9362b;
  --danger-soft: rgba(201, 54, 43, 0.1);
  --focus: rgba(49, 87, 213, 0.28);
  --shadow: 0 24px 65px rgba(27, 37, 54, 0.1), 0 2px 10px rgba(27, 37, 54, 0.04);
  --checker-a: #edf1f5;
  --checker-b: #fafbfc;
  --grid-line: rgba(38, 50, 69, 0.055);
  --radius-lg: 20px;
  --radius-md: 13px;
  --transition: 190ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b1020;
  --bg-deep: #080c17;
  --panel: rgba(18, 25, 43, 0.9);
  --panel-solid: #12192b;
  --surface: #182238;
  --surface-hover: #202c45;
  --text: #f4f7fb;
  --text-soft: #b5c0d2;
  --text-muted: #8492aa;
  --border: #2b3852;
  --border-strong: #51617d;
  --blue: #7696ff;
  --blue-action: #3d5fc9;
  --blue-soft: rgba(118, 150, 255, 0.15);
  --orange: #ff8a6e;
  --orange-action: #c94728;
  --orange-hover: #b83c20;
  --orange-soft: rgba(255, 138, 110, 0.14);
  --teal: #4fc8af;
  --danger: #ff796f;
  --danger-soft: rgba(255, 121, 111, 0.13);
  --focus: rgba(118, 150, 255, 0.3);
  --shadow: 0 28px 72px rgba(0, 0, 0, 0.32), 0 2px 10px rgba(0, 0, 0, 0.18);
  --checker-a: #172137;
  --checker-b: #111a2c;
  --grid-line: rgba(197, 210, 235, 0.055);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at 6% 8%, var(--blue-soft), transparent 26rem),
    radial-gradient(circle at 94% 88%, var(--orange-soft), transparent 28rem),
    var(--bg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button,
input,
textarea,
select {
  font: inherit;
}

button,
select,
label[for],
input[type="range"] {
  cursor: pointer;
  touch-action: manipulation;
}

button {
  color: inherit;
}

button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
label.drop-zone:has(input:focus-visible) {
  outline: none;
  box-shadow: 0 0 0 3px var(--focus);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

[hidden] {
  display: none !important;
}

.symbol-sheet {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

svg {
  width: 1.25rem;
  height: 1.25rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.page-atmosphere::before {
  position: absolute;
  inset: 0;
  content: "";
  opacity: 0.58;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(to bottom, #000 0%, transparent 92%);
}

.atmosphere-orbit {
  position: absolute;
  display: block;
  border: 1px solid var(--border);
  border-radius: 50%;
  opacity: 0.52;
}

.atmosphere-orbit-a {
  top: -30rem;
  right: -22rem;
  width: 62rem;
  height: 62rem;
}

.atmosphere-orbit-b {
  bottom: -24rem;
  left: -18rem;
  width: 48rem;
  height: 48rem;
  border-style: dashed;
}

.app-shell {
  display: grid;
  grid-template-columns: minmax(400px, 460px) minmax(0, 1fr);
  gap: 16px;
  width: min(1480px, calc(100% - 32px));
  min-height: calc(100vh - 32px);
  margin: 16px auto;
}

.panel {
  min-width: 0;
  border: 1px solid color-mix(in srgb, var(--border) 84%, transparent);
  border-radius: var(--radius-lg);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  animation: panel-enter 320ms both;
}

.control-panel {
  padding: 28px;
}

.preview-panel {
  display: flex;
  min-height: 680px;
  padding: 28px;
  flex-direction: column;
  animation-delay: 65ms;
}

.brand-header,
.brand-lockup,
.header-tools,
.field-heading,
.settings-heading,
.preview-header,
.preview-footer,
.form-actions,
.dialog-toolbar,
.result-card-meta,
.copy-prompt,
.online-chip,
.model-lock,
.secure-help {
  display: flex;
  align-items: center;
}

.brand-header,
.settings-heading,
.preview-header,
.preview-footer,
.dialog-toolbar,
.result-card-meta {
  justify-content: space-between;
}

.brand-header {
  gap: 16px;
  padding-bottom: 23px;
  border-bottom: 1px solid var(--border);
}

.brand-lockup {
  min-width: 0;
  gap: 11px;
}

.brand-mark {
  position: relative;
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  background: var(--panel-solid);
}

.brand-mark::before,
.brand-mark::after,
.brand-orbit,
.brand-core {
  position: absolute;
  display: block;
  content: "";
}

.brand-mark::before {
  inset: 8px;
  border: 1px solid var(--blue);
  border-radius: 50%;
}

.brand-mark::after {
  top: 50%;
  left: 6px;
  width: 30px;
  border-top: 1px solid var(--border-strong);
  transform: rotate(-28deg);
}

.brand-orbit {
  inset: 14px 5px;
  border: 1px solid var(--orange);
  border-radius: 50%;
  transform: rotate(32deg);
}

.brand-core {
  top: 18px;
  left: 18px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text);
  box-shadow: 0 0 0 3px var(--orange-soft);
}

.brand-name {
  overflow: hidden;
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  line-height: 1.05;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand-kicker {
  margin-top: 4px;
  color: var(--text-muted);
  font-family: var(--font-data);
  font-size: 0.64rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.header-tools {
  gap: 8px;
}

.online-chip,
.model-lock {
  gap: 7px;
  min-height: 32px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-soft);
  background: var(--surface);
  font-family: var(--font-data);
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.status-dot,
.mini-status-dot {
  display: inline-block;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--teal) 13%, transparent);
}

.status-dot {
  width: 7px;
  height: 7px;
}

.mini-status-dot {
  width: 6px;
  height: 6px;
}

.icon-button,
.input-action,
.result-card-actions button {
  display: inline-grid;
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  place-items: center;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text-soft);
  background: var(--surface);
  transition: color var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

.icon-button:hover,
.input-action:hover,
.result-card-actions button:hover {
  color: var(--text);
  border-color: var(--border-strong);
  background: var(--surface-hover);
}

.theme-icon-moon,
:root[data-theme="dark"] .theme-icon-sun {
  display: none;
}

:root[data-theme="dark"] .theme-icon-moon {
  display: block;
}

.title-block {
  padding: 27px 0 22px;
}

.eyebrow {
  margin: 0 0 7px;
  color: var(--text-muted);
  font-family: var(--font-data);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin-top: 0;
  color: var(--text);
}

h1 {
  margin-bottom: 9px;
  font-family: var(--font-display);
  font-size: clamp(2.15rem, 3.1vw, 2.75rem);
  font-weight: 650;
  letter-spacing: -0.045em;
  line-height: 1.05;
}

.intro-copy {
  max-width: 35rem;
  margin: 0;
  color: var(--text-soft);
  font-size: 0.91rem;
}

.endpoint-readout {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  min-height: 42px;
  align-items: center;
  margin-bottom: 16px;
  padding: 0 13px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface);
  clip-path: polygon(0 0, calc(100% - 11px) 0, 100% 11px, 100% 100%, 0 100%);
}

.endpoint-readout span,
.endpoint-readout code {
  font-family: var(--font-data);
  font-size: 0.66rem;
}

.endpoint-readout span {
  color: var(--teal);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.endpoint-readout code {
  overflow: hidden;
  color: var(--text-soft);
  text-align: right;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mode-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  margin-bottom: 24px;
  padding: 4px;
  border: 1px solid var(--border);
  border-radius: 15px;
  background: var(--surface);
}

.mode-tab {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 12px;
  border: 1px solid transparent;
  border-radius: 11px;
  color: var(--text-soft);
  background: transparent;
  font-size: 0.9rem;
  font-weight: 650;
  transition: color var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

.mode-tab:hover {
  color: var(--text);
  background: color-mix(in srgb, var(--panel-solid) 65%, transparent);
}

.mode-tab.is-active {
  color: #fff;
  border-color: color-mix(in srgb, var(--blue-action) 65%, #000 12%);
  background: var(--blue-action);
  box-shadow: 0 5px 15px color-mix(in srgb, var(--blue-action) 24%, transparent);
}

.mode-tab svg,
.primary-button svg,
.secondary-button svg,
.text-button svg,
.copy-prompt svg {
  width: 1.1rem;
  height: 1.1rem;
}

#studio-form {
  display: grid;
  gap: 21px;
}

.field-group {
  min-width: 0;
}

.field-group > label,
.field-heading label,
.upload-section label[id] {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--text);
  font-size: 0.84rem;
  font-weight: 700;
}

.field-heading {
  gap: 12px;
  justify-content: space-between;
}

.field-heading > span {
  color: var(--text-muted);
  font-family: var(--font-data);
  font-size: 0.68rem;
}

.field-heading strong {
  color: var(--teal);
}

textarea,
input[type="text"],
input[type="password"],
input[type="number"],
select {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--border);
  border-radius: 11px;
  color: var(--text);
  background: var(--surface);
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

textarea:hover,
input:hover,
select:hover {
  border-color: var(--border-strong);
}

textarea:focus,
input:focus,
select:focus {
  border-color: var(--blue);
  background: var(--panel-solid);
}

textarea::placeholder,
input::placeholder {
  color: var(--text-muted);
}

textarea {
  min-height: 166px;
  max-height: 360px;
  padding: 14px 15px;
  resize: vertical;
  line-height: 1.62;
}

input[type="text"],
input[type="password"],
input[type="number"],
select {
  padding: 0 13px;
}

select {
  padding-right: 36px;
}

.prompt-footer {
  display: flex;
  gap: 10px 14px;
  align-items: flex-start;
  justify-content: space-between;
  margin-top: 8px;
}

.field-help,
.field-error,
.request-error {
  margin: 0;
  font-size: 0.72rem;
  line-height: 1.55;
}

.field-help {
  color: var(--text-muted);
}

.field-error,
.request-error {
  min-height: 0;
  color: var(--danger);
  font-weight: 600;
}

.field-error:not(:empty) {
  margin-top: 7px;
}

.request-error:not(:empty) {
  padding: 10px 12px;
  border: 1px solid color-mix(in srgb, var(--danger) 38%, var(--border));
  border-radius: 10px;
  background: var(--danger-soft);
}

.prompt-presets {
  display: flex;
  max-width: 68%;
  gap: 6px;
  overflow-x: auto;
  padding: 0 0 3px;
  scrollbar-width: thin;
}

.prompt-presets button {
  min-height: 44px;
  flex: 0 0 auto;
  padding: 0 9px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-soft);
  background: transparent;
  font-size: 0.67rem;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.prompt-presets button:hover {
  color: var(--blue);
  border-color: color-mix(in srgb, var(--blue) 55%, var(--border));
  background: var(--blue-soft);
}

.input-with-action {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 44px;
  gap: 8px;
}

.input-with-action input {
  padding-left: 43px;
}

.input-leading {
  position: absolute;
  top: 13px;
  left: 14px;
  z-index: 1;
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  pointer-events: none;
}

.input-action {
  height: 46px;
}

.eye-hidden,
.input-action.is-visible .eye-visible {
  display: none;
}

.input-action.is-visible .eye-hidden {
  display: block;
}

.secure-help {
  gap: 7px;
  margin-top: 8px;
}

.upload-section {
  min-width: 0;
}

.drop-zone {
  display: flex;
  min-height: 150px;
  align-items: center;
  justify-content: center;
  padding: 20px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-md);
  color: var(--text-soft);
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    var(--surface);
  background-size: 20px 20px;
  text-align: center;
  flex-direction: column;
  transition: border-color var(--transition), background var(--transition), color var(--transition);
}

.drop-zone:hover,
.drop-zone.is-dragging {
  color: var(--blue);
  border-color: var(--blue);
  background-color: var(--blue-soft);
}

.drop-zone input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

.upload-icon {
  display: grid;
  width: 46px;
  height: 46px;
  margin-bottom: 10px;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--teal) 35%, var(--border));
  border-radius: 50%;
  color: var(--teal);
  background: color-mix(in srgb, var(--teal) 10%, var(--panel-solid));
}

.drop-zone strong {
  margin-bottom: 3px;
  color: var(--text);
  font-size: 0.84rem;
}

.drop-zone > span:last-child {
  color: var(--text-muted);
  font-size: 0.71rem;
}

.upload-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-top: 9px;
}

.upload-item {
  position: relative;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  aspect-ratio: 1;
}

.upload-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.upload-item button {
  position: absolute;
  top: 5px;
  right: 5px;
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: 8px;
  color: #fff;
  background: rgba(8, 12, 20, 0.68);
  backdrop-filter: blur(8px);
}

.upload-item button:hover {
  background: rgba(201, 54, 43, 0.88);
}

.upload-item button svg {
  width: 15px;
  height: 15px;
}

.settings-heading {
  gap: 14px;
  padding-top: 2px;
}

.settings-heading .eyebrow {
  margin-bottom: 3px;
}

.settings-heading h2 {
  margin-bottom: 0;
  font-family: var(--font-display);
  font-size: 1.3rem;
  letter-spacing: -0.02em;
}

.settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 12px;
}

.compact-field > label {
  margin-bottom: 6px;
  color: var(--text-soft);
  font-size: 0.73rem;
  font-weight: 650;
}

.span-2 {
  grid-column: 1 / -1;
}

.custom-size {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 8px;
  align-items: end;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--surface) 78%, transparent);
}

.dimension-cross {
  display: grid;
  height: 46px;
  place-items: center;
  color: var(--text-muted);
  font-family: var(--font-data);
}

.number-field {
  position: relative;
}

.number-field input {
  padding-right: 44px;
}

.number-field span {
  position: absolute;
  top: 15px;
  right: 12px;
  color: var(--text-muted);
  font-family: var(--font-data);
  font-size: 0.64rem;
  pointer-events: none;
}

.compression-field {
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--surface) 78%, transparent);
}

input[type="range"] {
  width: 100%;
  height: 20px;
  margin: 2px 0 4px;
  accent-color: var(--orange);
}

.form-actions {
  display: grid;
  grid-template-columns: minmax(130px, 0.72fr) minmax(190px, 1.28fr);
  gap: 10px;
  padding-top: 4px;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 0 18px;
  border-radius: 12px;
  font-size: 0.88rem;
  font-weight: 700;
  transition: color var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition), transform var(--transition);
}

.secondary-button {
  border: 1px solid var(--border);
  color: var(--text-soft);
  background: var(--surface);
}

.secondary-button:hover {
  color: var(--text);
  border-color: var(--border-strong);
  background: var(--surface-hover);
}

.primary-button {
  position: relative;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--orange-action) 75%, #8e2b16);
  color: #fff;
  background: var(--orange-action);
  box-shadow: 0 10px 24px color-mix(in srgb, var(--orange-action) 24%, transparent), inset 0 1px rgba(255, 255, 255, 0.3);
}

.primary-button::after {
  position: absolute;
  top: -80%;
  left: -28%;
  width: 24%;
  height: 260%;
  content: "";
  background: rgba(255, 255, 255, 0.22);
  transform: rotate(22deg) translateX(-240%);
  transition: transform 420ms ease;
}

.primary-button:hover {
  background: var(--orange-hover);
  box-shadow: 0 13px 28px color-mix(in srgb, var(--orange-action) 30%, transparent), inset 0 1px rgba(255, 255, 255, 0.28);
  transform: translateY(-1px);
}

.primary-button:hover::after {
  transform: rotate(22deg) translateX(700%);
}

.primary-button:active,
.secondary-button:active {
  transform: translateY(1px);
}

.button-label,
.button-loading {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.button-loading {
  display: none;
}

.primary-button.is-loading .button-label {
  display: none;
}

.primary-button.is-loading .button-loading {
  display: inline-flex;
}

.button-spinner {
  width: 17px;
  height: 17px;
  border: 2px solid rgba(255, 255, 255, 0.45);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 780ms linear infinite;
}

.preview-header {
  gap: 16px;
  padding-bottom: 19px;
  border-bottom: 1px solid var(--border);
}

.preview-header .eyebrow {
  margin-bottom: 4px;
}

.preview-header h2 {
  margin-bottom: 0;
  font-family: var(--font-display);
  font-size: 1.65rem;
  letter-spacing: -0.025em;
}

.request-status {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  gap: 8px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-muted);
  background: var(--surface);
  font-family: var(--font-data);
  font-size: 0.69rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.request-status-light {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--border-strong);
}

.request-status[data-state="loading"] {
  color: var(--orange);
  border-color: color-mix(in srgb, var(--orange) 35%, var(--border));
  background: var(--orange-soft);
}

.request-status[data-state="loading"] .request-status-light {
  background: var(--orange);
  box-shadow: 0 0 0 5px var(--orange-soft);
  animation: status-pulse 1.2s ease-in-out infinite;
}

.request-status[data-state="success"] {
  color: var(--teal);
  border-color: color-mix(in srgb, var(--teal) 35%, var(--border));
  background: color-mix(in srgb, var(--teal) 10%, transparent);
}

.request-status[data-state="success"] .request-status-light {
  background: var(--teal);
}

.request-status[data-state="error"] {
  color: var(--danger);
  border-color: color-mix(in srgb, var(--danger) 38%, var(--border));
  background: var(--danger-soft);
}

.request-status[data-state="error"] .request-status-light {
  background: var(--danger);
}

.stage-readouts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 13px 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
}

.stage-readouts > div {
  min-width: 0;
  padding: 10px 13px;
  border-right: 1px solid var(--border);
}

.stage-readouts > div:last-child {
  border-right: 0;
}

.stage-readouts span,
.stage-readouts strong {
  display: block;
  overflow: hidden;
  font-family: var(--font-data);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.stage-readouts span {
  margin-bottom: 3px;
  color: var(--text-muted);
  font-size: 0.59rem;
  letter-spacing: 0.1em;
}

.stage-readouts strong {
  color: var(--text-soft);
  font-size: 0.69rem;
  font-weight: 650;
}

.result-stage {
  position: relative;
  display: grid;
  min-height: 520px;
  flex: 1 1 auto;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 15px;
  background:
    linear-gradient(45deg, var(--checker-a) 25%, transparent 25%, transparent 75%, var(--checker-a) 75%),
    linear-gradient(45deg, var(--checker-a) 25%, var(--checker-b) 25%, var(--checker-b) 75%, var(--checker-a) 75%);
  background-position: 0 0, 10px 10px;
  background-size: 20px 20px;
}

.result-stage::after {
  position: absolute;
  inset: 0;
  z-index: 0;
  content: "";
  pointer-events: none;
  background: radial-gradient(circle at center, transparent 25%, color-mix(in srgb, var(--panel-solid) 68%, transparent) 100%);
}

.calibration-corners {
  position: absolute;
  inset: 13px;
  z-index: 3;
  pointer-events: none;
}

.calibration-corners i {
  position: absolute;
  width: 21px;
  height: 21px;
  border-color: var(--border-strong);
  border-style: solid;
  opacity: 0.75;
}

.calibration-corners i:nth-child(1) {
  top: 0;
  left: 0;
  border-width: 1px 0 0 1px;
}

.calibration-corners i:nth-child(2) {
  top: 0;
  right: 0;
  border-width: 1px 1px 0 0;
}

.calibration-corners i:nth-child(3) {
  right: 0;
  bottom: 0;
  border-width: 0 1px 1px 0;
}

.calibration-corners i:nth-child(4) {
  bottom: 0;
  left: 0;
  border-width: 0 0 1px 1px;
}

.empty-state,
.loading-state {
  position: relative;
  z-index: 1;
  width: min(92%, 520px);
  padding: 42px 24px;
  text-align: center;
}

.vortex-aperture {
  position: relative;
  width: 214px;
  height: 214px;
  margin: 0 auto 25px;
  border-radius: 50%;
}

.vortex-aperture::before {
  position: absolute;
  inset: -14px;
  content: "";
  border-radius: 50%;
  background: repeating-conic-gradient(from -1deg, var(--border-strong) 0deg 0.7deg, transparent 0.7deg 9deg);
  opacity: 0.72;
  mask: radial-gradient(circle, transparent 0 73%, #000 73.5% 77%, transparent 77.5%);
}

.aperture-ring,
.aperture-axis,
.aperture-core {
  position: absolute;
  display: block;
}

.aperture-ring {
  top: 50%;
  left: 50%;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.aperture-ring-outer {
  width: 100%;
  height: 100%;
  border: 1px solid var(--border-strong);
}

.aperture-ring-outer::before,
.aperture-ring-outer::after {
  position: absolute;
  width: 8px;
  height: 8px;
  content: "";
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 5px var(--orange-soft);
}

.aperture-ring-outer::before {
  top: 21px;
  right: 23px;
}

.aperture-ring-outer::after {
  bottom: 25px;
  left: 18px;
  width: 5px;
  height: 5px;
  background: var(--blue);
  box-shadow: 0 0 0 5px var(--blue-soft);
}

.aperture-ring-middle {
  width: 72%;
  height: 72%;
  border: 1px dashed var(--blue);
  opacity: 0.72;
  transform: translate(-50%, -50%) rotate(22deg);
}

.aperture-ring-inner {
  width: 43%;
  height: 43%;
  border: 1px solid color-mix(in srgb, var(--orange) 65%, var(--border));
  background: color-mix(in srgb, var(--panel-solid) 65%, transparent);
  box-shadow: 0 0 0 14px color-mix(in srgb, var(--panel-solid) 52%, transparent);
}

.aperture-axis {
  top: 50%;
  left: 50%;
  z-index: -1;
  background: var(--border-strong);
  opacity: 0.58;
  transform: translate(-50%, -50%);
}

.aperture-axis-x {
  width: calc(100% + 46px);
  height: 1px;
}

.aperture-axis-y {
  width: 1px;
  height: calc(100% + 46px);
}

.aperture-core {
  top: 50%;
  left: 50%;
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text-soft);
  background: var(--panel-solid);
  box-shadow: 0 10px 24px rgba(20, 28, 41, 0.08);
  transform: translate(-50%, -50%);
}

.aperture-core svg {
  width: 25px;
  height: 25px;
}

.empty-code {
  margin: 0 0 8px;
  color: var(--orange);
  font-family: var(--font-data);
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.11em;
}

.empty-state h3,
.loading-state h3 {
  margin-bottom: 7px;
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: -0.025em;
}

.empty-state > p:last-child,
.loading-state > p:nth-last-child(2) {
  max-width: 390px;
  margin: 0 auto;
  color: var(--text-muted);
  font-size: 0.81rem;
}

.is-running .aperture-ring-outer {
  animation: orbit-spin 4.8s linear infinite;
}

.is-running .aperture-ring-middle {
  animation: orbit-spin-reverse 3.4s linear infinite;
}

.is-running::before {
  animation: orbit-spin 8s linear infinite;
}

.is-running .aperture-core {
  color: var(--orange);
  box-shadow: 0 0 0 9px var(--orange-soft), 0 12px 32px rgba(20, 28, 41, 0.12);
}

.signal-bar {
  width: min(240px, 70%);
  height: 3px;
  margin: 22px auto 0;
  overflow: hidden;
  border-radius: 999px;
  background: var(--border);
}

.signal-bar span {
  display: block;
  width: 42%;
  height: 100%;
  border-radius: inherit;
  background: var(--orange);
  animation: signal-scan 1.25s ease-in-out infinite alternate;
}

.result-grid {
  position: relative;
  z-index: 2;
  display: grid;
  width: 100%;
  align-self: stretch;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 290px), 1fr));
  gap: 14px;
  padding: 22px;
}

.result-card {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 13px;
  background: var(--panel-solid);
  box-shadow: 0 14px 34px rgba(21, 30, 44, 0.09);
  animation: result-enter 240ms both;
}

.result-card.is-partial {
  border-color: color-mix(in srgb, var(--orange) 48%, var(--border));
  box-shadow: 0 14px 34px color-mix(in srgb, var(--orange) 14%, transparent);
}

.result-card.is-partial .result-image-wrap::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 3px;
  content: "";
  background: linear-gradient(90deg, transparent, var(--orange), transparent);
  transform: translateX(-100%);
  animation: stream-scan 1.5s ease-in-out infinite;
}

.result-card:only-child {
  width: min(100%, 760px);
  justify-self: center;
  grid-column: 1 / -1;
}

.result-image-wrap {
  position: relative;
  display: grid;
  min-height: 240px;
  place-items: center;
  overflow: hidden;
  background:
    linear-gradient(45deg, var(--checker-a) 25%, transparent 25%, transparent 75%, var(--checker-a) 75%),
    linear-gradient(45deg, var(--checker-a) 25%, var(--checker-b) 25%, var(--checker-b) 75%, var(--checker-a) 75%);
  background-position: 0 0, 9px 9px;
  background-size: 18px 18px;
}

.result-image-wrap img {
  display: block;
  width: 100%;
  max-height: 650px;
  object-fit: contain;
}

.result-index {
  position: absolute;
  top: 10px;
  left: 10px;
  min-width: 34px;
  padding: 5px 7px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 7px;
  color: #fff;
  background: rgba(9, 14, 23, 0.66);
  backdrop-filter: blur(8px);
  font-family: var(--font-data);
  font-size: 0.63rem;
  text-align: center;
}

.result-card-actions {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  gap: 6px;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity var(--transition), transform var(--transition);
}

.result-card:hover .result-card-actions,
.result-card:focus-within .result-card-actions {
  opacity: 1;
  transform: translateY(0);
}

.result-card-actions button {
  width: 44px;
  height: 44px;
  flex-basis: 44px;
  border-color: rgba(255, 255, 255, 0.4);
  color: #fff;
  background: rgba(9, 14, 23, 0.66);
  backdrop-filter: blur(8px);
}

.result-card-actions button:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.7);
  background: rgba(9, 14, 23, 0.82);
}

.result-card-meta {
  min-height: 50px;
  gap: 12px;
  padding: 8px 12px;
}

.result-card-meta > div span,
.result-card-meta > div strong {
  display: block;
  font-family: var(--font-data);
}

.result-card-meta > div span {
  color: var(--text-muted);
  font-size: 0.57rem;
  letter-spacing: 0.1em;
}

.result-card-meta > div strong {
  margin-top: 2px;
  color: var(--text-soft);
  font-size: 0.67rem;
}

.copy-prompt,
.text-button {
  min-height: 44px;
  gap: 7px;
  padding: 0 8px;
  border: 0;
  border-radius: 9px;
  color: var(--text-soft);
  background: transparent;
  font-size: 0.7rem;
  font-weight: 650;
  transition: color var(--transition), background var(--transition);
}

.copy-prompt:hover,
.text-button:hover:not(:disabled) {
  color: var(--blue);
  background: var(--blue-soft);
}

.preview-footer {
  gap: 14px;
  min-height: 49px;
  padding-top: 9px;
}

.preview-footer p {
  margin: 0;
  color: var(--text-muted);
  font-family: var(--font-data);
  font-size: 0.68rem;
}

.image-dialog {
  width: min(1180px, calc(100% - 30px));
  max-width: none;
  height: min(88vh, 900px);
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 18px;
  color: var(--text);
  background: var(--panel-solid);
  box-shadow: 0 35px 90px rgba(0, 0, 0, 0.4);
}

.image-dialog::backdrop {
  background: rgba(4, 8, 16, 0.72);
  backdrop-filter: blur(7px);
}

.dialog-toolbar {
  height: 62px;
  padding: 0 12px 0 18px;
  border-bottom: 1px solid var(--border);
}

.dialog-toolbar > span {
  color: var(--text-muted);
  font-family: var(--font-data);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
}

.dialog-toolbar > div {
  display: flex;
  gap: 7px;
}

.image-dialog > img {
  display: block;
  width: 100%;
  height: calc(100% - 62px);
  object-fit: contain;
  background:
    linear-gradient(45deg, var(--checker-a) 25%, transparent 25%, transparent 75%, var(--checker-a) 75%),
    linear-gradient(45deg, var(--checker-a) 25%, var(--checker-b) 25%, var(--checker-b) 75%, var(--checker-a) 75%);
  background-position: 0 0, 10px 10px;
  background-size: 20px 20px;
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 50;
  display: flex;
  min-height: 48px;
  max-width: min(390px, calc(100% - 36px));
  align-items: center;
  gap: 9px;
  padding: 10px 14px;
  border: 1px solid color-mix(in srgb, var(--teal) 38%, var(--border));
  border-radius: 12px;
  color: var(--text);
  background: var(--panel-solid);
  box-shadow: var(--shadow);
  font-size: 0.8rem;
  animation: toast-enter 220ms both;
}

.toast svg {
  color: var(--teal);
}

@keyframes panel-enter {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes result-enter {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes toast-enter {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

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

@keyframes orbit-spin {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes orbit-spin-reverse {
  from { transform: translate(-50%, -50%) rotate(382deg); }
  to { transform: translate(-50%, -50%) rotate(22deg); }
}

@keyframes signal-scan {
  from { transform: translateX(-25%); }
  to { transform: translateX(165%); }
}

@keyframes stream-scan {
  from { transform: translateX(-100%); }
  to { transform: translateX(100%); }
}

@keyframes status-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

@media (min-width: 1101px) {
  .app-shell {
    height: calc(100vh - 32px);
    min-height: 690px;
  }

  .control-panel {
    overflow-y: auto;
    scrollbar-color: var(--border-strong) transparent;
    scrollbar-width: thin;
  }

  .preview-panel {
    overflow: hidden;
  }

  .result-stage {
    min-height: 0;
  }
}

@media (max-width: 1100px) {
  .app-shell {
    grid-template-columns: minmax(0, 1fr);
    width: min(900px, calc(100% - 28px));
  }

  .preview-panel {
    min-height: 720px;
  }
}

@media (max-width: 720px) {
  .app-shell {
    width: calc(100% - 20px);
    min-height: calc(100vh - 20px);
    margin: 10px auto;
  }

  .panel {
    border-radius: 17px;
  }

  .control-panel,
  .preview-panel {
    padding: 19px;
  }

  .preview-panel {
    min-height: 650px;
  }

  .brand-header {
    align-items: flex-start;
  }

  .header-tools {
    flex-direction: column-reverse;
    align-items: flex-end;
  }

  .online-chip {
    min-height: 27px;
    font-size: 0.58rem;
  }

  .title-block {
    padding: 23px 0 19px;
  }

  .prompt-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .prompt-presets {
    max-width: 100%;
  }

  .stage-readouts {
    grid-template-columns: 1fr 1fr;
  }

  .stage-readouts > div:nth-child(2) {
    border-right: 0;
  }

  .stage-readouts > div:nth-child(-n + 2) {
    border-bottom: 1px solid var(--border);
  }

  .result-stage {
    min-height: 460px;
  }

  .result-grid {
    padding: 14px;
  }

  .result-card-actions {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 480px) {
  .app-shell {
    width: calc(100% - 12px);
    margin: 6px auto;
    gap: 10px;
  }

  .control-panel,
  .preview-panel {
    padding: 15px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
    flex-basis: 38px;
  }

  .brand-name {
    font-size: 1.02rem;
  }

  .brand-kicker {
    font-size: 0.56rem;
  }

  .online-chip {
    display: none;
  }

  h1 {
    font-size: 2rem;
  }

  .endpoint-readout {
    grid-template-columns: 1fr;
    gap: 1px;
    padding: 8px 11px;
  }

  .endpoint-readout code {
    text-align: left;
  }

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

  .span-2 {
    grid-column: auto;
  }

  .custom-size {
    grid-template-columns: minmax(0, 1fr) 22px minmax(0, 1fr);
  }

  .custom-size .span-2 {
    grid-column: 1 / -1;
  }

  .upload-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .form-actions {
    grid-template-columns: 1fr;
  }

  .preview-header {
    align-items: flex-start;
  }

  .preview-header h2 {
    font-size: 1.45rem;
  }

  .request-status {
    min-height: 32px;
    padding: 0 9px;
    font-size: 0.61rem;
  }

  .result-stage {
    min-height: 430px;
  }

  .vortex-aperture {
    width: 178px;
    height: 178px;
  }

  .empty-state,
  .loading-state {
    padding: 30px 12px;
  }

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

  .text-button {
    align-self: flex-end;
  }

  .image-dialog {
    width: calc(100% - 12px);
    height: 86vh;
    border-radius: 14px;
  }

  .toast {
    right: 9px;
    bottom: 9px;
    max-width: calc(100% - 18px);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .primary-button:hover {
    transform: none;
  }
}