:root {
  --bg: #091112;
  --card: rgba(13, 28, 28, 0.82);
  --card-strong: rgba(18, 36, 35, 0.9);
  --line: rgba(185, 230, 218, 0.08);
  --ink: #eef8f3;
  --muted: #9bb2aa;
  --accent: #16d8b6;
  --accent-soft: rgba(22, 216, 182, 0.14);
  --accent-strong: #98f7e4;
  --on-accent: #041313;
  --warm: #ff8b6b;
  --warm-soft: rgba(255, 139, 107, 0.14);
  --danger: #ff6f8b;
  --danger-soft: rgba(255, 111, 139, 0.14);
  --ok-soft: rgba(22, 216, 182, 0.14);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.26), 0 0 0 1px rgba(255, 255, 255, 0.018);
  --surface-topbar: rgba(7, 17, 18, 0.84);
  --surface-elevated: rgba(13, 27, 28, 0.96);
  --surface-input: rgba(8, 20, 21, 0.92);
  --surface-input-soft: rgba(21, 43, 42, 0.58);
  --surface-panel: rgba(18, 38, 37, 0.66);
  --surface-panel-strong: rgba(24, 50, 48, 0.74);
  --surface-panel-hover: rgba(31, 61, 58, 0.82);
  --surface-image: rgba(5, 12, 13, 0.94);
  --surface-image-soft: rgba(12, 27, 28, 0.9);
  --surface-input-readonly: rgba(6, 16, 17, 0.96);
  --surface-input-focus: rgba(12, 30, 30, 0.98);
  --scrollbar-track: rgba(238, 248, 243, 0.07);
  --scrollbar-thumb: rgba(22, 216, 182, 0.28);
  --scrollbar-thumb-hover: rgba(255, 139, 107, 0.42);
  --body-grad-start: #071010;
  --body-grad-end: #121917;
  --body-radial-a: rgba(255, 139, 107, 0.12);
  --body-radial-b: rgba(22, 216, 182, 0.12);
  --accent-rgb: 22, 216, 182;
  --warm-rgb: 255, 139, 107;
  --radius: 22px;
  --motion-fast: 160ms;
  --motion-base: 240ms;
  --motion-slow: 380ms;
  --motion-ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --motion-emphasis: cubic-bezier(0.22, 1, 0.36, 1);
  --motion-pop: cubic-bezier(0.2, 0.9, 0.2, 1.08);
  --motion-lift-y: 18px;
  --motion-lift-y-sm: 10px;
  --motion-scale-enter: 0.965;
  --motion-overlay: rgba(16, 20, 18, 0.34);
}

body[data-theme="cool_tech"] {
  --bg: #eaf1ff;
  --card: rgba(246, 250, 255, 0.92);
  --card-strong: rgba(240, 246, 255, 0.98);
  --line: rgba(32, 52, 86, 0.06);
  --ink: #16253d;
  --muted: #5d6d86;
  --accent: #2b6fff;
  --accent-soft: rgba(43, 111, 255, 0.12);
  --accent-strong: #1446b8;
  --on-accent: #fff;
  --warm: #4d78d8;
  --warm-soft: rgba(77, 120, 216, 0.12);
  --danger: #c33d58;
  --danger-soft: rgba(195, 61, 88, 0.12);
  --ok-soft: rgba(43, 111, 255, 0.12);
  --shadow: 0 24px 70px rgba(24, 43, 74, 0.12);
  --surface-topbar: rgba(239, 245, 255, 0.84);
  --surface-elevated: rgba(240, 246, 255, 0.98);
  --surface-input: rgba(255, 255, 255, 0.94);
  --surface-input-soft: rgba(255, 255, 255, 0.72);
  --surface-panel: rgba(255, 255, 255, 0.76);
  --surface-panel-strong: rgba(255, 255, 255, 0.82);
  --surface-panel-hover: rgba(255, 255, 255, 0.92);
  --surface-image: rgba(255, 255, 255, 0.9);
  --surface-image-soft: rgba(255, 255, 255, 0.8);
  --surface-input-readonly: rgba(248, 251, 255, 0.96);
  --surface-input-focus: rgba(255, 255, 255, 0.98);
  --scrollbar-track: rgba(32, 52, 86, 0.08);
  --scrollbar-thumb: rgba(43, 111, 255, 0.26);
  --scrollbar-thumb-hover: rgba(43, 111, 255, 0.42);
  --body-grad-start: #f4f8ff;
  --body-grad-end: #dde8ff;
  --body-radial-a: rgba(43, 111, 255, 0.16);
  --body-radial-b: rgba(80, 200, 255, 0.14);
  --accent-rgb: 43, 111, 255;
  --warm-rgb: 77, 120, 216;
}

body[data-theme="warm_light"] {
  --bg: #f3ecd9;
  --card: rgba(255, 251, 242, 0.92);
  --card-strong: rgba(255, 248, 235, 0.98);
  --line: rgba(33, 45, 38, 0.06);
  --ink: #203029;
  --muted: #596861;
  --accent: #12655d;
  --accent-soft: rgba(18, 101, 93, 0.1);
  --accent-strong: #0d4c46;
  --on-accent: #fff;
  --warm: #be6d36;
  --warm-soft: rgba(190, 109, 54, 0.14);
  --danger: #a63a2b;
  --danger-soft: rgba(166, 58, 43, 0.12);
  --ok-soft: rgba(18, 101, 93, 0.12);
  --shadow: 0 24px 70px rgba(30, 40, 35, 0.12);
  --surface-topbar: rgba(255, 248, 235, 0.84);
  --surface-elevated: rgba(255, 248, 235, 0.98);
  --surface-input: rgba(255, 255, 255, 0.94);
  --surface-input-soft: rgba(255, 255, 255, 0.72);
  --surface-panel: rgba(255, 255, 255, 0.76);
  --surface-panel-strong: rgba(255, 255, 255, 0.82);
  --surface-panel-hover: rgba(255, 255, 255, 0.92);
  --surface-image: rgba(255, 255, 255, 0.9);
  --surface-image-soft: rgba(255, 255, 255, 0.8);
  --surface-input-readonly: rgba(255, 251, 244, 0.96);
  --surface-input-focus: rgba(255, 255, 255, 0.98);
  --scrollbar-track: rgba(33, 45, 38, 0.08);
  --scrollbar-thumb: rgba(18, 101, 93, 0.24);
  --scrollbar-thumb-hover: rgba(18, 101, 93, 0.38);
  --body-grad-start: #f7f2e8;
  --body-grad-end: #ece2cf;
  --body-radial-a: rgba(18, 101, 93, 0.16);
  --body-radial-b: rgba(190, 109, 54, 0.16);
  --accent-rgb: 18, 101, 93;
  --warm-rgb: 190, 109, 54;
}

body[data-theme="dark_tech"] {
  --bg: #0a1220;
  --card: rgba(13, 22, 38, 0.88);
  --card-strong: rgba(15, 27, 46, 0.94);
  --line: rgba(135, 170, 255, 0.07);
  --ink: #e8f1ff;
  --muted: #8ea4c7;
  --accent: #68a4ff;
  --accent-soft: rgba(104, 164, 255, 0.16);
  --accent-strong: #b6d4ff;
  --on-accent: #06101d;
  --warm: #66d4ff;
  --warm-soft: rgba(102, 212, 255, 0.12);
  --danger: #ff7f98;
  --danger-soft: rgba(255, 127, 152, 0.12);
  --ok-soft: rgba(104, 164, 255, 0.14);
  --shadow: 0 26px 80px rgba(0, 8, 20, 0.45);
  --surface-topbar: rgba(12, 20, 34, 0.82);
  --surface-elevated: rgba(16, 28, 48, 0.94);
  --surface-input: rgba(13, 24, 42, 0.94);
  --surface-input-soft: rgba(18, 31, 52, 0.82);
  --surface-panel: rgba(17, 29, 48, 0.84);
  --surface-panel-strong: rgba(20, 33, 54, 0.88);
  --surface-panel-hover: rgba(24, 40, 64, 0.92);
  --surface-image: rgba(14, 25, 42, 0.92);
  --surface-image-soft: rgba(16, 28, 48, 0.88);
  --surface-input-readonly: rgba(11, 21, 36, 0.96);
  --surface-input-focus: rgba(20, 34, 56, 0.98);
  --scrollbar-track: rgba(104, 164, 255, 0.08);
  --scrollbar-thumb: rgba(104, 164, 255, 0.24);
  --scrollbar-thumb-hover: rgba(104, 164, 255, 0.4);
  --body-grad-start: #0b1324;
  --body-grad-end: #08101d;
  --body-radial-a: rgba(61, 119, 255, 0.2);
  --body-radial-b: rgba(32, 201, 255, 0.14);
  --accent-rgb: 104, 164, 255;
  --warm-rgb: 102, 212, 255;
}

body[data-theme="reference_neon"] {
  --bg: #0b0b12;
  --card: rgba(20, 20, 30, 0.78);
  --card-strong: rgba(24, 24, 36, 0.92);
  --line: rgba(172, 125, 255, 0.1);
  --ink: #f8fafc;
  --muted: #94a3b8;
  --accent: #fe53bb;
  --accent-soft: rgba(254, 83, 187, 0.16);
  --accent-strong: #ffd6f0;
  --on-accent: #170311;
  --warm: #03a9f4;
  --warm-soft: rgba(3, 169, 244, 0.14);
  --danger: #ef4444;
  --danger-soft: rgba(239, 68, 68, 0.12);
  --ok-soft: rgba(34, 197, 94, 0.14);
  --shadow: 0 22px 60px rgba(0, 0, 0, 0.28), 0 8px 24px rgba(142, 81, 234, 0.14);
  --surface-topbar: rgba(20, 20, 30, 0.84);
  --surface-elevated: rgba(20, 20, 30, 0.94);
  --surface-input: rgba(17, 20, 32, 0.94);
  --surface-input-soft: rgba(27, 31, 48, 0.84);
  --surface-panel: rgba(24, 24, 36, 0.82);
  --surface-panel-strong: rgba(28, 30, 44, 0.88);
  --surface-panel-hover: rgba(33, 36, 54, 0.92);
  --surface-image: rgba(20, 20, 30, 0.92);
  --surface-image-soft: rgba(24, 24, 36, 0.88);
  --surface-input-readonly: rgba(15, 18, 28, 0.96);
  --surface-input-focus: rgba(27, 31, 48, 0.98);
  --scrollbar-track: rgba(254, 83, 187, 0.08);
  --scrollbar-thumb: rgba(142, 81, 234, 0.36);
  --scrollbar-thumb-hover: rgba(254, 83, 187, 0.5);
  --body-grad-start: #0b0b12;
  --body-grad-end: #0b0b12;
  --body-radial-a: rgba(142, 81, 234, 0.16);
  --body-radial-b: rgba(254, 83, 186, 0.12);
  --accent-rgb: 254, 83, 187;
  --warm-rgb: 3, 169, 244;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

body {
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background:
    linear-gradient(120deg, var(--body-radial-a) 0%, transparent 34%, transparent 66%, var(--body-radial-b) 100%),
    linear-gradient(140deg, var(--body-grad-start) 0%, var(--body-grad-end) 100%);
  background-attachment: fixed;
}

.particle-background {
  position: fixed;
  inset: 0;
  z-index: 0;
  display: block;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
}

button,
.button-link {
  appearance: none;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  font: inherit;
  font-weight: 600;
  transition:
    transform var(--motion-fast) var(--motion-ease),
    background var(--motion-fast) var(--motion-ease),
    opacity var(--motion-fast) var(--motion-ease),
    box-shadow var(--motion-fast) var(--motion-ease),
    border-color var(--motion-fast) var(--motion-ease),
    color var(--motion-fast) var(--motion-ease);
}

button:hover,
.button-link:hover {
  transform: translateY(-1px);
}

button:focus-visible,
.button-link:focus-visible {
  outline: none;
  box-shadow:
    0 0 0 3px rgba(var(--accent-rgb), 0.2),
    0 12px 28px rgba(var(--accent-rgb), 0.14);
}

button:active,
.button-link:active {
  transform: translateY(0);
}

button,
.button-link {
  padding: 11px 18px;
  background: var(--accent);
  color: var(--on-accent);
  text-decoration: none;
  box-shadow: 0 12px 28px rgba(var(--accent-rgb), 0.14);
}

.ghost {
  background: var(--accent-soft);
  color: var(--accent);
  box-shadow: none;
}

.ghost:focus-visible {
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.18);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  transform: none;
  box-shadow: none;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
  font: inherit;
  color: var(--ink);
  background: var(--surface-input);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  transition:
    border-color var(--motion-fast) var(--motion-ease),
    box-shadow var(--motion-fast) var(--motion-ease),
    background var(--motion-fast) var(--motion-ease),
    color var(--motion-fast) var(--motion-ease);
}

textarea {
  resize: vertical;
}

input[type="number"] {
  -moz-appearance: textfield;
  appearance: textfield;
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
  margin: 0;
  appearance: none;
  -webkit-appearance: none;
}

.number-stepper {
  position: relative;
  width: 100%;
}

.number-stepper input[type="number"] {
  padding-right: 30px;
}

.number-stepper-controls {
  position: absolute;
  top: 7px;
  right: 8px;
  bottom: 7px;
  display: grid;
  width: 18px;
  overflow: hidden;
  border: 0;
  border-radius: 8px;
  background: transparent;
  pointer-events: auto;
}

.number-stepper-button {
  position: relative;
  min-width: 0;
  min-height: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  color: color-mix(in srgb, var(--muted) 86%, var(--accent));
  cursor: pointer;
  transform: none;
}

.number-stepper-button + .number-stepper-button {
  border-top: 0;
}

.number-stepper-button::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 5px;
  height: 5px;
  border-top: 1.5px solid currentColor;
  border-left: 1.5px solid currentColor;
}

.number-stepper-button.up::before {
  transform: translate(-50%, -22%) rotate(45deg);
}

.number-stepper-button.down::before {
  transform: translate(-50%, -78%) rotate(225deg);
}

.number-stepper-button:hover,
.number-stepper-button:focus-visible {
  background: rgba(var(--accent-rgb), 0.1);
  color: var(--accent-strong);
  transform: none;
}

.number-stepper:focus-within .number-stepper-controls {
  background: rgba(var(--accent-rgb), 0.08);
}

.number-stepper input[type="number"]:disabled + .number-stepper-controls,
.number-stepper input[type="number"][readonly] + .number-stepper-controls {
  opacity: 0.52;
}

.number-stepper input[type="number"]:disabled + .number-stepper-controls .number-stepper-button,
.number-stepper input[type="number"][readonly] + .number-stepper-controls .number-stepper-button {
  cursor: not-allowed;
  pointer-events: none;
}

input::placeholder,
textarea::placeholder {
  color: color-mix(in srgb, var(--muted) 88%, transparent);
}

input:hover,
select:hover,
textarea:hover {
  border-color: rgba(var(--accent-rgb), 0.28);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: rgba(var(--accent-rgb), 0.55);
  background: var(--surface-input-focus);
  box-shadow:
    0 0 0 3px rgba(var(--accent-rgb), 0.14),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

input[readonly],
textarea[readonly],
select[disabled],
input:disabled,
textarea:disabled {
  background: var(--surface-input-readonly);
}

input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
textarea:-webkit-autofill,
textarea:-webkit-autofill:hover,
textarea:-webkit-autofill:focus,
select:-webkit-autofill,
select:-webkit-autofill:hover,
select:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--ink);
  box-shadow:
    0 0 0 1000px var(--surface-input) inset,
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transition: background-color 9999s ease-out 0s;
}

*::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

*::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}

*::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 999px;
  border: 2px solid transparent;
  background-clip: padding-box;
}

*::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover);
  border: 2px solid transparent;
  background-clip: padding-box;
}

*::-webkit-scrollbar-corner {
  background: transparent;
}

a {
  color: inherit;
}

.app-shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  padding: 64px 20px 20px;
}

.app-shell[data-motion-ready="true"] [data-motion] {
  animation: motion-fade-up var(--motion-slow) var(--motion-emphasis) both;
}

.app-shell[data-motion-ready="true"] [data-motion="workspace-card"] {
  animation-delay: 120ms;
}

.app-shell[data-motion-ready="true"] [data-motion="result-card"] {
  animation-delay: 200ms;
}

.app-shell[data-motion-ready="true"] [data-motion="workspace-files"] {
  animation-delay: 250ms;
}

.app-shell[data-motion-ready="true"] [data-motion="workspace-actions"] {
  animation-delay: 300ms;
}

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  min-height: 52px;
  padding: 8px 20px;
  background: var(--surface-topbar);
  border: 0;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 72%, transparent);
  border-radius: 0;
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(18px);
  transform: translateY(0);
  opacity: 1;
  transition:
    transform var(--motion-base) var(--motion-emphasis),
    opacity var(--motion-base) var(--motion-ease);
  will-change: transform;
}

.app-shell.topbar-collapsed .topbar {
  transform: translateY(calc(-100% + 8px));
  opacity: 0.86;
}

.panel-head h2,
.section-head h3 {
  margin: 0;
}

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

#result-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 100%;
  min-height: 24px;
  transition:
    color 0.18s ease,
    background-color 0.18s ease,
    border-color 0.18s ease,
    box-shadow 0.18s ease;
}

#result-status:empty {
  display: none;
  min-height: 0;
}

#result-status.result-status-running {
  padding: 6px 14px;
  white-space: nowrap;
  color: var(--accent-strong);
  border: 1px solid rgba(var(--accent-rgb), 0.14);
  border-radius: 999px;
  background:
    linear-gradient(
      115deg,
      rgba(255, 255, 255, 0) 0%,
      rgba(255, 255, 255, 0) 32%,
      rgba(255, 255, 255, 0.9) 46%,
      rgba(var(--warm-rgb), 0.4) 50%,
      rgba(255, 255, 255, 0.9) 54%,
      rgba(255, 255, 255, 0) 68%,
      rgba(255, 255, 255, 0) 100%
    ) 0 0 / 180% 100% no-repeat,
    linear-gradient(180deg, rgba(var(--accent-rgb), 0.12), rgba(var(--accent-rgb), 0.05));
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.35),
    0 8px 20px rgba(var(--accent-rgb), 0.08);
  animation: result-status-marquee 1.2s linear infinite;
}

#result-status.result-status-running::after {
  content: "...";
  display: inline-block;
  width: 1.5em;
  overflow: hidden;
  letter-spacing: 0.12em;
  animation: result-status-dots 1s steps(4, end) infinite;
}

.main-nav {
  display: flex;
  gap: 6px;
  justify-content: flex-start;
  flex-wrap: nowrap;
  min-width: 0;
  overflow: hidden;
}

.nav-link,
.subtab {
  padding: 6px 10px;
  background: var(--surface-input-soft);
  color: var(--muted);
  border: 1px solid color-mix(in srgb, var(--line) 74%, transparent);
  font-size: 13px;
  white-space: nowrap;
}

.nav-link.active,
.subtab.active {
  background: var(--accent);
  color: var(--on-accent);
  box-shadow: 0 10px 24px rgba(var(--accent-rgb), 0.14);
}

.topbar .nav-link,
.topbar .ghost,
.topbar .pill {
  background: rgba(var(--accent-rgb), 0.08);
  border: 1px solid rgba(var(--accent-rgb), 0.08);
  color: var(--ink);
  box-shadow: none;
  backdrop-filter: blur(10px);
  transition:
    background-color var(--motion-fast) var(--motion-ease),
    border-color var(--motion-fast) var(--motion-ease),
    box-shadow var(--motion-fast) var(--motion-ease),
    opacity var(--motion-fast) var(--motion-ease);
}

.topbar .nav-link,
.topbar .ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  min-height: 36px;
  padding: 0 13px;
  border-radius: 999px;
  line-height: 1;
}

.app-shell.topbar-collapsed .topbar .nav-link,
.app-shell.topbar-collapsed .topbar .ghost,
.app-shell.topbar-collapsed .topbar .pill,
.app-shell.topbar-collapsed .theme-picker {
  opacity: 0.5;
}

.topbar .nav-link:hover,
.topbar .ghost:hover {
  background: rgba(var(--accent-rgb), 0.16);
  border-color: rgba(var(--accent-rgb), 0.18);
}

.topbar .nav-link.active {
  background: rgba(var(--accent-rgb), 0.78);
  border-color: rgba(var(--accent-rgb), 0.12);
  color: var(--on-accent);
  box-shadow: 0 8px 20px rgba(var(--accent-rgb), 0.16);
}

.topbar .nav-link:focus-visible,
.topbar .ghost:focus-visible,
.theme-trigger:focus-visible,
.theme-option:focus-visible {
  box-shadow:
    0 0 0 3px rgba(var(--accent-rgb), 0.16),
    0 6px 16px rgba(24, 43, 74, 0.06);
}

.header-meta {
  display: flex;
  gap: 6px;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: nowrap;
  min-width: 0;
}

.theme-picker {
  position: relative;
  display: inline-flex;
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  min-height: 36px;
  align-items: center;
  justify-content: center;
}

.theme-trigger,
.theme-option {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  min-height: 36px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  box-shadow: none;
}

.theme-trigger:hover,
.theme-option:hover {
  background: transparent;
  transform: translateY(-1px);
}

.theme-swatch {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, #fe53bb 0%, #03a9f4 56%, #0b0b12 100%);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.16),
    0 8px 18px rgba(var(--accent-rgb), 0.18);
}

.theme-swatch[data-theme-value="aurora_studio"] {
  background: linear-gradient(135deg, #16d8b6 0%, #ff8b6b 56%, #071010 100%);
}

.theme-swatch[data-theme-value="cool_tech"] {
  background: linear-gradient(135deg, #2b6fff 0%, #4d78d8 56%, #f4f8ff 100%);
}

.theme-swatch[data-theme-value="warm_light"] {
  background: linear-gradient(135deg, #12655d 0%, #be6d36 56%, #f7f2e8 100%);
}

.theme-swatch[data-theme-value="dark_tech"] {
  background: linear-gradient(135deg, #68a4ff 0%, #66d4ff 56%, #0b1324 100%);
}

.theme-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: -4px;
  z-index: 120;
  display: grid;
  grid-template-columns: repeat(5, 36px);
  gap: 4px;
  width: max-content;
  padding: 7px;
  border: 0;
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface-topbar) 88%, transparent);
  box-shadow: 0 16px 38px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(18px);
}

.theme-option.active .theme-swatch {
  box-shadow:
    inset 0 0 0 2px rgba(255, 255, 255, 0.5),
    0 0 0 4px rgba(var(--accent-rgb), 0.12),
    0 10px 22px rgba(var(--accent-rgb), 0.2);
}

.topbar-status {
  display: none !important;
}

.auth-dialog {
  width: min(92vw, 480px);
  border: 0;
  padding: 0;
  background: transparent;
  opacity: 0;
  transform: translateY(var(--motion-lift-y-sm)) scale(var(--motion-scale-enter));
}

.auth-dialog::backdrop {
  background: transparent;
}

.auth-dialog.is-opening,
.auth-dialog.is-open {
  animation: modal-shell-in var(--motion-base) var(--motion-pop) both;
}

.auth-dialog.is-closing {
  animation: modal-shell-out 180ms var(--motion-ease) both;
}

.auth-dialog.is-opening::backdrop,
.auth-dialog.is-open::backdrop {
  animation: modal-backdrop-in var(--motion-base) var(--motion-ease) both;
}

.auth-dialog.is-closing::backdrop {
  animation: modal-backdrop-out 180ms var(--motion-ease) both;
}

.auth-form {
  display: grid;
  gap: 16px;
  padding: 20px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--surface-elevated);
  box-shadow: var(--shadow);
}

.auth-form label {
  display: grid;
  gap: 8px;
  font-size: 14px;
}

.pill,
.status-chip,
.summary-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 5px 9px;
  font-size: 12px;
  line-height: 1.2;
}

.pill {
  background: var(--accent-soft);
  color: var(--accent);
}

.summary-chip {
  background: var(--surface-panel-strong);
  border: 1px solid var(--line);
  color: var(--muted);
  justify-content: flex-start;
}

.status-chip.ok {
  background: var(--ok-soft);
  color: var(--accent);
}

.status-chip.warn {
  background: var(--warm-soft);
  color: var(--warm);
}

.status-chip.info {
  background: rgba(var(--accent-rgb), 0.12);
  color: var(--accent-strong);
}

.status-chip.bad {
  background: var(--danger-soft);
  color: var(--danger);
}

.page-shell {
  margin-top: 12px;
}

.view.hidden,
.hidden {
  display: none !important;
}

@keyframes result-status-marquee {
  from {
    background-position: 180% 50%, 0 0;
  }

  to {
    background-position: -35% 50%, 0 0;
  }
}

@keyframes result-status-dots {
  from {
    width: 0;
  }

  to {
    width: 1.5em;
  }
}

@keyframes assist-status-marquee {
  from {
    background-position: 180% 50%, 0 0;
  }

  to {
    background-position: -30% 50%, 0 0;
  }
}

.workspace-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(340px, 0.98fr);
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  min-width: 0;
  backdrop-filter: blur(18px);
}

.work-card {
  background:
    linear-gradient(180deg, rgba(var(--accent-rgb), 0.045), transparent 34%),
    var(--card);
}

.panel-head,
.assist-row,
.card-actions,
.result-actions,
.settings-meta,
.panel-actions,
.history-actions,
.history-headline,
.mode-bar {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.panel-head {
  justify-content: space-between;
}

.panel-head p,
.section-head p {
  margin: 8px 0 0;
}

.workspace-advanced-toggle {
  margin-top: 2px;
  justify-self: start;
}

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

.history-tabs {
  display: inline-flex;
  gap: 4px;
  width: fit-content;
  max-width: 100%;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-input-soft);
}

.history-tabs .subtab {
  border-color: transparent;
  background: transparent;
  box-shadow: none;
  white-space: nowrap;
}

.history-tabs .subtab.active {
  background: var(--accent);
  color: var(--on-accent);
}

.history-filter-head {
  gap: 10px;
  align-items: center;
  flex-wrap: nowrap;
}

.history-filter-head .panel-actions {
  flex: 1 1 auto;
  gap: 8px;
  flex-wrap: nowrap;
  justify-content: flex-end;
  min-width: 0;
}

.history-filter-head .history-tabs {
  flex: 0 0 auto;
}

.banner,
.warning,
.error,
.empty-card,
.file-item,
.upload-zone,
.history-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-panel);
  padding: 12px;
}

.banner {
  margin-bottom: 16px;
  color: var(--warm);
  background: rgba(var(--warm-rgb), 0.1);
}

.warning {
  color: var(--warm);
  background: var(--warm-soft);
  margin-bottom: 14px;
  white-space: pre-wrap;
}

.error {
  color: var(--danger);
  background: var(--danger-soft);
  margin-bottom: 14px;
  white-space: pre-wrap;
}

.warning-text {
  color: var(--warm);
}

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

.stack-form,
.prompt-section,
.file-section,
.raw-panel,
.history-feed,
.history-prompt-stack,
.history-toggle-stack {
  display: grid;
  gap: 10px;
}

.prompt-grid,
.field-grid,
.settings-layout,
.settings-split-grid,
.settings-compact-grid,
.history-summary-grid {
  display: grid;
  gap: 10px;
}

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

.prompt-grid label,
.field,
.settings-section label,
.settings-panel label {
  display: grid;
  gap: 8px;
  font-size: 14px;
}

.settings-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.settings-split-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.settings-compact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.custom-size-panel {
  display: grid;
  gap: 8px;
  margin-top: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface-input-soft);
}

.field-grid > .field { align-content: start; }

.custom-size-panel[hidden] { display: none; }

.custom-size-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
  align-items: end;
  gap: 8px;
}

.custom-size-row label { min-width: 0; font-size: 12px; }
.custom-size-row input { width: 100%; min-width: 0; }
.custom-size-swap { padding: 10px; }
.custom-size-summary, .custom-size-hint { margin: 0; font-size: 12px; line-height: 1.6; }
.custom-size-summary { color: var(--accent); }
.custom-size-hint { color: var(--muted); }
.custom-size-summary.is-invalid { color: var(--danger); }
.custom-size-row input[aria-invalid="true"] { border-color: var(--danger); }

@media (max-width: 480px) {
  .custom-size-row { grid-template-columns: minmax(0, 1fr) auto; }
  .custom-size-row label { grid-column: 1; }
  .custom-size-swap { grid-column: 2; grid-row: 1 / 3; align-self: center; }
}

.settings-wide,
.settings-section-primary,
.settings-section-preview,
.prompt-grid .full,
.field.full {
  grid-column: 1 / -1;
}

.settings-head {
  align-items: center;
}

.settings-card {
  display: grid;
  gap: 16px;
}

.settings-toolbar {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  justify-content: space-between;
  padding: 18px 20px;
  border: 1px solid color-mix(in srgb, var(--line) 68%, transparent);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface-panel) 86%, transparent);
}

.settings-title {
  display: grid;
  gap: 10px;
}

.settings-title h2 {
  margin: 0;
  font-size: 20px;
  line-height: 1.2;
}

.settings-toolbar-actions {
  display: grid;
  gap: 10px;
  justify-items: end;
  max-width: min(520px, 55vw);
}

.settings-section,
.settings-panel {
  display: grid;
  gap: 12px;
  min-width: 0;
  padding: 16px;
  border: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface-panel) 88%, transparent);
}

.settings-section-primary {
  background:
    linear-gradient(180deg, rgba(var(--accent-rgb), 0.045), transparent 38%),
    var(--surface-panel);
}

.settings-panel {
  background: color-mix(in srgb, var(--surface-input-soft) 76%, transparent);
  box-shadow: none;
}

.settings-panel-head {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
}

.settings-panel-head h4 {
  margin: 0;
  font-size: 14px;
  color: var(--accent-strong);
}

.settings-meta {
  gap: 8px;
}

.settings-meta .pill {
  padding: 7px 10px;
  font-size: 12px;
}

#settings-status {
  margin: 0;
  font-size: 13px;
  line-height: 1.45;
  color: var(--muted);
  text-align: right;
}

.settings-section .section-head {
  margin-bottom: 2px;
}

.settings-section .section-head h3 {
  font-size: 16px;
  line-height: 1.2;
  color: var(--ink);
}

.settings-config-switcher {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) auto auto auto auto;
  gap: 8px;
  align-items: center;
}

.settings-config-switcher button {
  white-space: nowrap;
  padding: 10px 12px;
}

.settings-section label,
.settings-panel label {
  gap: 6px;
  font-size: 13px;
}

.settings-section label > span,
.settings-panel label > span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.settings-section input,
.settings-section select,
.settings-section textarea,
.settings-panel input,
.settings-panel select,
.settings-panel textarea {
  border-radius: 14px;
  padding: 10px 12px;
}

.settings-section input[type="number"],
.settings-panel input[type="number"] {
  padding-right: 30px;
}

.settings-toggle-row {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
  padding: 2px 0;
}

.settings-toggle-row .checkbox,
.settings-inline-checkbox,
.settings-row-checkbox {
  width: fit-content;
  min-height: 38px;
  padding: 8px 10px;
  border: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface-input-soft) 72%, transparent);
}

.settings-config-switcher .settings-row-checkbox,
.settings-field-action {
  display: inline-grid;
  grid-template-columns: 16px max-content;
  gap: 8px;
  align-items: center;
  justify-self: start;
  white-space: nowrap;
}

.settings-config-switcher .settings-row-checkbox {
  min-height: 34px;
  padding: 7px 9px;
}

.settings-field-with-action {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: end;
  min-width: 0;
}

.settings-field-with-action > label:not(.checkbox) {
  min-width: 0;
}

.settings-field-with-action .settings-field-action {
  margin-bottom: 1px;
}

.settings-grid-checkbox {
  width: 100%;
  min-height: 42px;
  align-self: end;
}

.settings-field-note {
  min-height: 18px;
  font-size: 12px;
  line-height: 1.5;
}

.settings-advanced {
  display: grid;
  gap: 10px;
  padding-top: 2px;
}

.settings-advanced summary,
.settings-preview-disclosure {
  display: grid;
  gap: 8px;
}

.settings-advanced summary,
.settings-preview-disclosure summary {
  width: fit-content;
  list-style: none;
  cursor: pointer;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
}

.settings-advanced summary::-webkit-details-marker,
.settings-preview-disclosure summary::-webkit-details-marker {
  display: none;
}

.settings-advanced summary::after,
.settings-preview-disclosure summary::after {
  content: "";
  display: inline-block;
  width: 0.48em;
  height: 0.48em;
  margin-left: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform var(--motion-fast) var(--motion-ease);
}

.settings-advanced[open] summary::after,
.settings-preview-disclosure[open] summary::after {
  transform: translateY(1px) rotate(225deg);
}

.settings-advanced > .settings-compact-grid,
.settings-preview-disclosure textarea {
  margin-top: 10px;
}

.settings-preview-disclosure {
  display: grid;
  gap: 8px;
}

.settings-preview-disclosure textarea {
  margin-top: 2px;
  min-height: 280px;
}

.assist-row {
  justify-content: flex-start;
  align-items: center;
  gap: 10px;
}

.assist-row.is-running {
  align-items: center;
}

.assist-row p {
  margin: 0;
  flex: 0 1 auto;
}

#assist-btn.is-running {
  position: relative;
  padding-right: 44px;
  box-shadow: 0 10px 26px rgba(var(--accent-rgb), 0.12);
}

#assist-btn.is-running::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 16px;
  width: 14px;
  height: 14px;
  margin-top: -7px;
  border-radius: 50%;
  border: 2px solid rgba(4, 19, 19, 0.28);
  border-top-color: var(--on-accent);
  animation: loader-spin 0.8s linear infinite;
}

#assist-status.assist-status-running {
  position: relative;
  padding: 8px 14px;
  border: 1px solid rgba(var(--accent-rgb), 0.12);
  border-radius: 999px;
  background:
    linear-gradient(
      110deg,
      rgba(255, 255, 255, 0) 0%,
      rgba(255, 255, 255, 0) 36%,
      rgba(255, 255, 255, 0.78) 48%,
      rgba(var(--accent-rgb), 0.18) 50%,
      rgba(255, 255, 255, 0.78) 52%,
      rgba(255, 255, 255, 0) 64%,
      rgba(255, 255, 255, 0) 100%
    ) 0 0 / 185% 100% no-repeat,
    linear-gradient(180deg, rgba(var(--accent-rgb), 0.1), rgba(var(--accent-rgb), 0.04));
  color: var(--accent-strong);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.28),
    0 10px 24px rgba(var(--accent-rgb), 0.08);
  animation: assist-status-marquee 1.35s linear infinite;
}

.actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin-top: 2px;
}

.actions button {
  width: 100%;
  min-height: 48px;
  font-size: 15px;
}

.copy-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(420px, 1.1fr);
  gap: 18px;
  align-items: start;
}

.copy-card {
  min-width: 0;
}

.copy-card .panel-head h2 {
  margin: 0;
  font-size: 18px;
  line-height: 1.2;
}

.copy-full,
.copy-options-grid label {
  display: grid;
  gap: 8px;
  font-size: 14px;
}

.copy-full > span,
.copy-options-grid label > span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.copy-options-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

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

.copy-actions .ghost {
  width: auto;
  min-width: 96px;
}

.settings-image-statistics {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  margin-top: 10px;
}

.settings-statistic {
  min-width: 0;
  padding: 9px 10px;
  border: 1px solid color-mix(in srgb, var(--line) 72%, transparent);
  border-radius: 8px;
  background: color-mix(in srgb, var(--surface-input-soft) 62%, transparent);
}

.settings-statistic-label,
.settings-statistic-value {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.settings-statistic-label {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
}

.settings-statistic-value {
  margin-top: 4px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
}

.translation-role-control {
  display: grid;
}

.translation-role-switch {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px;
  padding: 4px;
  border: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  border-radius: var(--radius-sm);
  background: var(--surface-input-soft);
}

.translation-role-option {
  min-height: 38px;
  padding: 8px 12px;
  border: 0;
  border-radius: calc(var(--radius-sm) - 2px);
  background: transparent;
  color: var(--muted);
  font-size: 13px;
}

.translation-role-option.active,
.translation-role-option[aria-selected="true"] {
  background: var(--surface-panel);
  color: var(--ink);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.translation-advanced-options {
  display: grid;
  gap: 12px;
}

.translation-history-card {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.translation-history-head {
  align-items: flex-start;
}

.translation-history-head h2 {
  margin: 0;
  font-size: 18px;
}

.translation-history-head p {
  margin: 5px 0 0;
}

.translation-history-list {
  display: grid;
  gap: 10px;
}

.translation-history-empty {
  padding: 28px 16px;
  border: 1px dashed color-mix(in srgb, var(--line) 78%, transparent);
  border-radius: var(--radius-sm);
  color: var(--muted);
  text-align: center;
}

.translation-history-item {
  display: grid;
  gap: 12px;
  padding: 14px;
  border: 1px solid color-mix(in srgb, var(--line) 76%, transparent);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--surface-input-soft) 76%, transparent);
}

.translation-history-item-head,
.translation-history-field-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.translation-history-item-head {
  color: var(--muted);
  font-size: 12px;
}

.translation-history-field {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.translation-history-field-label {
  color: var(--accent-strong);
  font-size: 12px;
  font-weight: 700;
}

.translation-history-text {
  max-height: 6.8em;
  margin: 0;
  overflow: hidden;
  color: var(--ink);
  line-height: 1.7;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.translation-history-text.is-expanded {
  max-height: none;
}

.translation-history-toggle,
.translation-history-delete {
  width: auto;
  min-height: 30px;
  padding: 5px 9px;
  font-size: 12px;
}

#translation-result-text {
  min-height: 360px;
}

.translation-result-loader {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 34px;
  color: var(--muted);
  font-size: 13px;
  animation: loader-fade-in var(--motion-fast) var(--motion-emphasis) both;
}

.translation-result-loader-ring {
  width: 15px;
  height: 15px;
  border: 2px solid color-mix(in srgb, var(--accent-strong) 25%, transparent);
  border-top-color: var(--accent-strong);
  border-radius: 50%;
  animation: loader-spin 0.8s linear infinite;
}

#translation-status.translation-status-running {
  color: var(--accent-strong);
}

#translation-optimize-btn.is-running {
  position: relative;
  padding-right: 44px;
}

#translation-optimize-btn.is-running::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 16px;
  width: 14px;
  height: 14px;
  margin-top: -7px;
  border: 2px solid rgba(4, 19, 19, 0.28);
  border-top-color: var(--on-accent);
  border-radius: 50%;
  animation: loader-spin 0.8s linear infinite;
}

.copy-result-card {
  display: grid;
  gap: 12px;
}

#copy-status {
  margin: 0;
  min-height: 22px;
}

#copy-status.copy-status-running {
  color: var(--accent-strong);
}

#copy-optimize-btn.is-running {
  position: relative;
  padding-right: 44px;
}

#copy-optimize-btn.is-running::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 16px;
  width: 14px;
  height: 14px;
  margin-top: -7px;
  border-radius: 50%;
  border: 2px solid rgba(4, 19, 19, 0.28);
  border-top-color: var(--on-accent);
  animation: loader-spin 0.8s linear infinite;
}

#copy-result-text {
  min-height: 360px;
}

.copy-html-panel {
  display: grid;
  gap: 10px;
}

.copy-html-preview {
  width: 100%;
  min-height: 280px;
  max-height: 460px;
  overflow: auto;
  padding: 18px;
  border: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  border-radius: var(--radius-sm);
  background:
    linear-gradient(180deg, rgba(var(--accent-rgb), 0.045), transparent 42%),
    var(--surface-input-readonly);
  color: var(--ink);
  font: 14px/1.65 Arial, "Helvetica Neue", sans-serif;
  box-shadow:
    inset 0 0 0 1px color-mix(in srgb, var(--line) 44%, transparent),
    0 12px 26px rgba(0, 0, 0, 0.08);
}

.copy-html-preview h2 {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: 22px;
  line-height: 1.25;
}

.copy-html-preview h3 {
  margin: 16px 0 8px;
  color: var(--accent-strong);
  font-size: 16px;
}

.copy-html-preview p {
  margin: 0 0 10px;
}

.copy-html-preview ul,
.copy-html-preview ol {
  margin: 0 0 12px 20px;
  padding: 0;
}

.copy-html-preview li {
  margin: 6px 0;
}

.copy-html-preview strong {
  color: var(--accent-strong);
}

.copy-preview-empty {
  display: grid;
  min-height: 220px;
  place-items: center;
  color: var(--muted);
  text-align: center;
}

.copy-summary-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.copy-summary-panel section {
  min-width: 0;
  padding: 12px;
  border: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--surface-input-soft) 76%, transparent);
}

.copy-summary-panel h3 {
  margin: 0 0 8px;
  font-size: 13px;
  color: var(--accent-strong);
}

.copy-summary-panel ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.upload-zone,
.file-previews {
  display: grid;
  gap: 14px;
}

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

.file-previews {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.drop-zone,
.picker-card {
  display: grid;
  gap: 10px;
  align-content: start;
}

.drop-zone {
  min-height: 126px;
  border: 1px dashed rgba(var(--accent-rgb), 0.18);
  transition:
    border-color var(--motion-fast) var(--motion-ease),
    background var(--motion-fast) var(--motion-ease),
    box-shadow var(--motion-fast) var(--motion-ease),
    transform var(--motion-fast) var(--motion-ease);
  cursor: pointer;
}

.drop-zone:hover,
.drop-zone:focus-visible,
.drop-zone.is-drag-over {
  border-color: rgba(var(--accent-rgb), 0.38);
  background: var(--surface-panel-hover);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.08);
  transform: translateY(-1px);
}

.drop-zone-copy,
.drop-zone-actions {
  display: grid;
  gap: 6px;
}

.drop-zone-copy strong,
.drop-zone-copy p,
.drop-zone-actions .muted {
  margin: 0;
}

.drop-zone-copy p {
  display: none;
}

.drop-zone-actions {
  align-content: end;
}

.drop-zone-actions button {
  justify-self: start;
}

.file-item {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.file-thumb {
  width: 88px;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--surface-image);
}

.file-thumb img,
.file-thumb-fallback {
  width: 100%;
  height: 100%;
}

.file-thumb img {
  display: block;
  object-fit: cover;
}

.file-thumb-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  font-size: 12px;
  color: var(--muted);
  text-align: center;
}

.file-meta {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.file-meta-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.file-remove-btn {
  flex: 0 0 auto;
  min-width: auto;
  min-height: 32px;
  padding: 6px 10px;
  font-size: 12px;
}

.file-meta p,
.file-meta strong {
  margin: 0;
  word-break: break-word;
}

.results-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  align-content: start;
}

.history-image-card {
  display: grid;
  gap: 10px;
  padding: 10px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--surface-image-soft);
}

.result-item {
  display: block;
  animation: motion-result-card-in 320ms var(--motion-emphasis) both;
}

.result-item img {
  width: 100%;
  height: auto;
  aspect-ratio: auto;
  object-fit: contain;
  border-radius: var(--radius);
  display: block;
  cursor: zoom-in;
  background: transparent;
}

.history-image-card img {
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: auto;
  object-fit: contain;
  border-radius: var(--radius);
  display: block;
  cursor: zoom-in;
  background: var(--surface-image);
}

.history-image-card-result {
  grid-template-rows: auto minmax(48px, auto) auto;
  align-content: start;
}

.history-image-frame {
  position: relative;
  width: 100%;
  aspect-ratio: var(--history-image-ratio, 1 / 1);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface-image);
}

.history-image-frame img {
  width: 100%;
  max-width: none;
  height: 100%;
  aspect-ratio: auto;
  border-radius: 0;
  object-fit: contain;
  background: transparent;
}

.result-item img[role="button"]:focus-visible,
.history-image-card img[role="button"]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.lazy-thumb {
  opacity: 0.01;
  transition: opacity var(--motion-fast) var(--motion-ease);
}

.lazy-thumb.loaded {
  opacity: 1;
}

.history-image-card-result .meta {
  display: grid;
  gap: 6px;
  font-size: 12px;
  color: var(--muted);
  align-content: start;
  min-height: 56px;
}

.history-image-card-result .meta span {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.history-image-card-result .meta .warning-text {
  display: -webkit-box;
  overflow: hidden;
  white-space: normal;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.history-image-card-result .card-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: auto;
}

.result-actions {
  margin-top: 4px;
  justify-content: flex-start;
}

.result-card {
  position: sticky;
  top: 72px;
  align-self: start;
  display: grid;
  gap: 12px;
  background:
    linear-gradient(180deg, rgba(var(--accent-rgb), 0.08), transparent 42%),
    var(--card);
  border-color: rgba(var(--accent-rgb), 0.24);
}

.result-loader {
  display: grid;
  justify-items: center;
  gap: 14px;
  min-height: 280px;
  padding: 40px 18px 24px;
  text-align: center;
  animation: loader-fade-in var(--motion-base) var(--motion-emphasis) both;
}

.result-loader.hidden {
  display: none !important;
}

.result-loader-ring {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  border: 4px solid rgba(var(--accent-rgb), 0.12);
  border-top-color: rgba(var(--accent-rgb), 0.82);
  border-right-color: rgba(var(--warm-rgb), 0.45);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.75) inset,
    0 10px 26px rgba(var(--accent-rgb), 0.08);
  animation: loader-spin 0.95s linear infinite;
}

.result-loader-copy {
  display: grid;
  gap: 6px;
}

.result-loader-copy strong {
  font-size: 15px;
  color: var(--accent-strong);
}

.result-loader-copy span {
  color: var(--muted);
  font-size: 13px;
}

.result-card.is-running #results-grid {
  min-height: 0;
}

#submit-btn.is-cooling-down {
  --submit-cooldown-duration: 3s;
  background-color: var(--accent);
  background-image: linear-gradient(rgba(4, 19, 19, 0.26), rgba(4, 19, 19, 0.26));
  background-position: left center;
  background-repeat: no-repeat;
  background-size: 100% 100%;
  box-shadow: 0 10px 26px rgba(var(--accent-rgb), 0.12);
  animation: submit-cooldown var(--submit-cooldown-duration) linear forwards;
}

#submit-btn.is-cooling-down:disabled {
  opacity: 1;
}

@keyframes submit-cooldown {
  to {
    background-size: 0 100%;
  }
}

.result-prompt-disclosure {
  display: grid;
  gap: 8px;
  margin-top: 2px;
}

.result-prompt-disclosure > button {
  justify-self: start;
}

.disclosure-toggle {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--accent);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.4;
  text-align: left;
  box-shadow: none;
}

.disclosure-toggle:hover {
  transform: none;
  text-decoration: underline;
}

.disclosure-toggle:disabled {
  opacity: 0.45;
  color: var(--muted);
  background: transparent;
}

.result-summary-grid,
.result-prompt-disclosure .raw-panel,
#result-raw-panel {
  animation: reveal-soft var(--motion-base) var(--motion-emphasis) both;
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.preview-text {
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 12px;
  line-height: 1.5;
  background: var(--surface-input-readonly);
}

.checkbox {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.checkbox input {
  width: 16px;
  height: 16px;
  margin: 2px 0 0;
}

.checkbox span {
  line-height: 1.5;
}

.compact {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-left: auto;
}

.compact input {
  margin: 0;
}

.settings-section label.is-disabled,
.settings-panel label.is-disabled {
  opacity: 0.6;
}

.history-feed {
  margin-top: 12px;
}

.history-footer {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  margin-top: 12px;
}

.history-footer p {
  margin: 0;
}

.history-card {
  display: grid;
  gap: 14px;
}

.history-card.history-card-enter {
  animation: motion-history-card-in 300ms var(--motion-emphasis) both;
  animation-delay: calc(var(--history-enter-index, 0) * 36ms);
}

.history-card-layout {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 2fr) minmax(0, 3fr);
  align-items: start;
}

.history-card-layout-running {
  grid-template-columns: 1fr;
}

.history-main,
.history-media {
  min-width: 0;
}

.history-media {
  display: grid;
  gap: 16px;
}

.history-main {
  display: grid;
  gap: 18px;
}

.history-prompt-section {
  display: grid;
  gap: 8px;
}

.history-card-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.history-card-head p {
  margin: 6px 0 0;
}

.history-copy {
  display: grid;
  gap: 6px;
}

.history-copy p {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}

.history-copy-text.is-clamped {
  display: -webkit-box;
  overflow: hidden;
  white-space: normal;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: var(--history-line-clamp, 4);
}

.history-expand-btn {
  width: fit-content;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--accent);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
}

.history-expand-btn:hover {
  transform: none;
  text-decoration: underline;
}

.tiny-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--accent-strong);
  text-transform: uppercase;
}

.history-images {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.history-asset-section {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.history-asset-grid {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  overflow-y: hidden;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.history-image-card-input {
  flex: 0 0 auto;
  width: 88px;
  min-width: 88px;
  gap: 0;
  padding: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface-image);
}

.history-image-card-input img {
  width: 88px;
  height: 88px;
  aspect-ratio: 1 / 1;
  border-radius: 0;
  object-fit: cover;
}

.history-asset-note {
  margin: 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
}

.history-summary {
  display: grid;
  gap: 12px;
}

.history-summary-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 12px;
}

.history-summary-item {
  display: grid;
  gap: 4px;
  min-width: 0;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-input-soft);
}

.history-summary-label {
  font-size: 11px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--accent-strong);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.history-summary-value {
  display: grid;
  gap: 3px;
  min-width: 0;
  font-size: 13px;
  line-height: 1.35;
  color: var(--ink);
}

.history-summary-value > span,
.history-summary-value > strong {
  display: block;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.summary-request {
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
}

.summary-actual {
  color: var(--accent-strong);
  font-size: 13px;
}

.result-summary-grid {
  margin-bottom: 2px;
}

.result-summary-item {
  min-height: 0;
  padding: 8px 10px;
}

.history-actions {
  justify-content: flex-start;
}

.history-panel {
  display: grid;
  gap: 8px;
}

.history-panel textarea {
  min-height: 180px;
}

.slim {
  padding: 18px;
}

.raw-panel {
  margin-top: 6px;
}

.image-modal {
  width: min(96vw, 1480px);
  height: min(96vh, 980px);
  max-width: none;
  border: 0;
  padding: 0;
  background: transparent;
  opacity: 0;
  transform: translateY(var(--motion-lift-y-sm)) scale(var(--motion-scale-enter));
}

.image-modal::backdrop {
  background: transparent;
}

.image-modal.is-opening,
.image-modal.is-open {
  animation: modal-shell-in var(--motion-base) var(--motion-pop) both;
}

.image-modal.is-closing {
  animation: modal-shell-out 180ms var(--motion-ease) both;
}

.image-modal.is-opening::backdrop,
.image-modal.is-open::backdrop {
  animation: modal-backdrop-in var(--motion-base) var(--motion-ease) both;
}

.image-modal.is-closing::backdrop {
  animation: modal-backdrop-out 180ms var(--motion-ease) both;
}

.image-modal-shell {
  position: relative;
  width: 100%;
  height: 100%;
  padding: 12px;
  border-radius: var(--radius);
  background: transparent;
  overflow: hidden;
}

.image-modal-toolbar {
  position: absolute;
  top: 18px;
  right: 18px;
  z-index: 3;
  display: flex;
  gap: 8px;
  align-items: center;
}

.icon-button {
  width: 42px;
  height: 42px;
  padding: 0;
  font-size: 18px;
  line-height: 1;
}

.close-button {
  font-size: 20px;
}

.image-modal-stage {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--surface-image);
  cursor: grab;
  touch-action: none;
}

.image-modal-stage.dragging {
  cursor: grabbing;
}

.image-modal-preview {
  position: absolute;
  left: 50%;
  top: 50%;
  max-width: none;
  max-height: none;
  width: auto;
  height: auto;
  display: block;
  user-select: none;
  -webkit-user-drag: none;
  transform: translate(-50%, -50%);
  transform-origin: center center;
}

@keyframes motion-fade-up {
  from {
    opacity: 0;
    transform: translateY(var(--motion-lift-y));
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes motion-result-card-in {
  from {
    opacity: 0;
    transform: translateY(var(--motion-lift-y-sm)) scale(0.985);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes motion-history-card-in {
  from {
    opacity: 0;
    transform: translateY(14px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes loader-fade-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes loader-spin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

@keyframes modal-backdrop-in {
  from {
    background: transparent;
  }

  to {
    background: var(--motion-overlay);
  }
}

@keyframes modal-backdrop-out {
  from {
    background: var(--motion-overlay);
  }

  to {
    background: transparent;
  }
}

@keyframes modal-shell-in {
  from {
    opacity: 0;
    transform: translateY(var(--motion-lift-y-sm)) scale(var(--motion-scale-enter));
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes modal-shell-out {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }

  to {
    opacity: 0;
    transform: translateY(8px) scale(0.985);
  }
}

@keyframes reveal-soft {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1280px) {
  .app-shell {
    padding-top: 66px;
  }

  .topbar {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .header-meta {
    justify-content: flex-end;
  }

  .workspace-grid,
  .copy-layout,
  .settings-layout,
  .settings-split-grid {
    grid-template-columns: 1fr;
  }

  .result-card {
    position: static;
  }

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

@media (max-width: 860px) {
  .app-shell {
    padding: 66px 14px 14px;
  }

  .topbar {
    top: 0;
    left: 0;
    right: 0;
    gap: 7px;
    padding: 8px 12px;
  }

  .nav-link {
    padding: 0 10px;
    font-size: 12px;
  }

  .topbar .ghost {
    padding: 0 12px;
    font-size: 12px;
  }

  .topbar .nav-link,
  .topbar .ghost,
  .theme-picker,
  .theme-trigger,
  .theme-option {
    height: 34px;
    min-height: 34px;
  }

  .theme-picker,
  .theme-trigger,
  .theme-option {
    width: 34px;
  }

  .theme-menu {
    grid-template-columns: repeat(5, 34px);
    right: -5px;
  }

  .theme-swatch {
    width: 20px;
    height: 20px;
  }

  .card {
    padding: 18px;
  }

  .panel-head,
  .assist-row,
  .history-actions,
  .history-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .history-filter-head {
    flex-direction: row;
    align-items: center;
  }

  .history-filter-head .panel-actions {
    flex-direction: row;
    align-items: center;
  }

  .prompt-grid,
  .field-grid,
  .settings-layout,
  .settings-split-grid,
  .settings-compact-grid,
  .settings-config-switcher,
  .settings-image-statistics,
  .copy-options-grid,
  .copy-summary-panel,
  .translation-history-head,
  .history-summary-grid {
    grid-template-columns: 1fr;
  }

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

  .copy-actions .ghost {
    width: 100%;
  }

  .settings-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .translation-history-head {
    align-items: stretch;
  }

  .settings-toolbar-actions {
    max-width: none;
    justify-items: stretch;
  }

  #settings-status {
    text-align: left;
  }

  .settings-toggle-row {
    align-items: stretch;
  }

  .upload-zone {
    grid-template-columns: 1fr;
  }

  .history-card-layout {
    grid-template-columns: 1fr;
  }

  .history-images {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  }

  .image-modal {
    width: 100vw;
    height: 100vh;
  }

  .image-modal-shell {
    padding: 8px;
    border-radius: 0;
  }

  .image-modal-toolbar {
    top: 14px;
    right: 14px;
  }

  .icon-button {
    width: 38px;
    height: 38px;
  }
}

.settings-provider-group-select {
  width: min(180px, 48%);
  min-width: 120px;
}

@media (max-width: 760px) {
  .history-filter-head,
  .history-filter-head .panel-actions {
    flex-wrap: wrap;
  }

  .history-filter-head {
    align-items: stretch;
  }

  .history-filter-head .panel-actions {
    justify-content: flex-start;
  }

}

@media (prefers-reduced-motion: reduce) {
  :root {
    --motion-fast: 1ms;
    --motion-base: 1ms;
    --motion-slow: 1ms;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }

  .app-shell[data-motion-ready="true"] [data-motion],
  .particle-background,
  .result-item,
  .history-card.history-card-enter,
  .result-loader,
  .result-summary-grid,
  .result-prompt-disclosure .raw-panel,
  #result-raw-panel,
  .auth-dialog.is-opening,
  .auth-dialog.is-open,
  .auth-dialog.is-closing,
  .image-modal.is-opening,
  .image-modal.is-open,
  .image-modal.is-closing,
  #result-status.result-status-running,
  #result-status.result-status-running::after,
  #assist-status.assist-status-running,
  .result-loader-ring,
  .translation-result-loader,
  .translation-result-loader-ring,
  #submit-btn.is-cooling-down,
  #assist-btn.is-running::after {
    animation: none !important;
  }

  button,
  .button-link,
  .drop-zone,
  .lazy-thumb {
    transition: none !important;
  }

  .particle-background {
    display: none;
  }
}