:root {
  color-scheme: light;
  --font-app: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bg: #f4f1eb;
  --panel: #fffefa;
  --panel-2: #ece8df;
  --text: #1e2424;
  --muted: #66706b;
  --line: #d7d1c6;
  --accent: #0f766e;
  --accent-2: #b45309;
  --accent-3: #6d5dfc;
  --danger: #b42318;
  --shadow: 0 18px 50px rgba(28, 30, 28, 0.12);
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #111414;
  --panel: #1b2020;
  --panel-2: #252b29;
  --text: #eef2ee;
  --muted: #a9b1ac;
  --line: #38423e;
  --accent: #35b7a8;
  --accent-2: #f0a24b;
  --accent-3: #9d8cff;
  --danger: #ff8a7a;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  min-height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-app), system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
}

button,
input,
select {
  font: inherit;
}

button,
select,
.file-action {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  min-height: 38px;
}

button,
.file-action {
  cursor: pointer;
  padding: 0.55rem 0.75rem;
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease;
}

button:hover,
.file-action:hover {
  border-color: var(--accent);
}

button:active {
  transform: translateY(1px);
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
summary:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 40%, transparent);
  outline-offset: 2px;
}

.studio-shell {
  width: min(100%, 1800px);
  margin: 0 auto;
  padding: 18px;
}

.app-header,
.privacy-strip,
.workspace,
.preview-panel,
.sidebar,
.score-panel,
.score-card,
.palette-card,
.feedback-card,
.details-card,
.comparison-section {
  border: 1px solid var(--line);
  background: var(--panel);
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-radius: 12px;
  padding: 16px 18px;
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(1.55rem, 2vw, 2.2rem);
  line-height: 1.15;
}

h2 {
  margin-bottom: 12px;
  font-size: 1rem;
}

.header-actions,
.export-actions,
.button-grid,
.overlay-toggles {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.privacy-strip {
  margin: 12px 0;
  border-radius: 10px;
  padding: 10px 14px;
  color: var(--muted);
  font-size: 0.92rem;
}

.workspace {
  display: grid;
  grid-template-columns: 310px minmax(420px, 1fr) 360px;
  gap: 14px;
  border: 0;
  background: transparent;
}

.sidebar,
.preview-panel,
.score-panel {
  min-width: 0;
  border-radius: 12px;
  padding: 14px;
}

.sidebar,
.score-panel {
  align-self: start;
  position: sticky;
  top: 14px;
  max-height: calc(100vh - 28px);
  overflow: auto;
}

.drop-zone {
  display: grid;
  place-items: center;
  min-height: 160px;
  border: 2px dashed var(--line);
  border-radius: 10px;
  background: var(--panel-2);
  text-align: center;
  cursor: pointer;
}

.drop-zone.is-over {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, var(--panel));
}

.drop-zone input {
  width: 1px;
  height: 1px;
  opacity: 0;
  position: absolute;
}

.drop-zone span {
  display: block;
  font-weight: 800;
}

.drop-zone small,
.image-meta,
.score-card small,
.thumb-meta,
.ai-disabled {
  color: var(--muted);
}

.control-block {
  display: grid;
  gap: 8px;
  margin: 14px 0;
}

.control-block label {
  font-weight: 800;
}

select {
  width: 100%;
  padding: 0 0.6rem;
}

.button-grid > * {
  flex: 1 1 120px;
}

.progress-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 12px 0;
}

.progress-bar {
  flex: 1;
  height: 10px;
  border-radius: 999px;
  overflow: hidden;
  background: var(--panel-2);
}

.progress-bar span {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--accent);
}

.thumb-list {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.thumb-item {
  display: grid;
  grid-template-columns: 70px 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.thumb-item.is-active {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 9%, var(--panel));
}

.thumb-item img {
  width: 70px;
  height: 56px;
  border-radius: 6px;
  object-fit: cover;
  background: var(--panel-2);
}

.thumb-name {
  overflow-wrap: anywhere;
  font-weight: 800;
  line-height: 1.25;
}

.preview-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.overlay-toggles label,
.zoom-control {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-2);
  color: var(--muted);
  font-size: 0.86rem;
}

.zoom-control input {
  width: 110px;
}

.canvas-frame {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 520px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background:
    linear-gradient(45deg, color-mix(in srgb, var(--line) 22%, transparent) 25%, transparent 25%),
    linear-gradient(-45deg, color-mix(in srgb, var(--line) 22%, transparent) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, color-mix(in srgb, var(--line) 22%, transparent) 75%),
    linear-gradient(-45deg, transparent 75%, color-mix(in srgb, var(--line) 22%, transparent) 75%);
  background-size: 24px 24px;
  background-position: 0 0, 0 12px, 12px -12px, -12px 0;
}

canvas {
  display: block;
  max-width: 100%;
  height: auto;
}

.empty-state {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  color: var(--muted);
  text-align: center;
}

.image-meta {
  margin: 10px 0 0;
  font-size: 0.9rem;
}

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

.comparison-section {
  margin-top: 14px;
  border-radius: 10px;
  padding: 12px;
}

.table-wrap {
  max-height: 330px;
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
  font-size: 0.9rem;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 8px;
  text-align: left;
}

th {
  position: sticky;
  top: 0;
  background: var(--panel);
  z-index: 1;
}

.table-thumb {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 180px;
}

.table-thumb img {
  width: 42px;
  height: 34px;
  border-radius: 5px;
  object-fit: cover;
}

.score-panel {
  display: grid;
  gap: 12px;
}

.score-card,
.palette-card,
.feedback-card,
.details-card {
  border-radius: 10px;
  padding: 12px;
}

.total-card {
  background: linear-gradient(135deg, var(--panel), color-mix(in srgb, var(--accent) 12%, var(--panel)));
}

.total-card strong {
  display: block;
  font-size: clamp(3rem, 5vw, 5.4rem);
  line-height: 0.95;
  margin: 6px 0;
}

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

.metric-row {
  display: grid;
  gap: 6px;
}

.metric-head {
  display: flex;
  justify-content: space-between;
  font-weight: 800;
}

.meter {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--panel-2);
}

.meter span {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-2), var(--accent), var(--accent-3));
}

.palette {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}

.swatch {
  min-height: 52px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 6px;
  display: flex;
  align-items: end;
  color: #fff;
  font-size: 0.72rem;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.55);
}

.feedback-card ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 1.1rem;
}

.details-card pre {
  max-height: 280px;
  overflow: auto;
  white-space: pre-wrap;
  font-size: 0.78rem;
}

.details-card summary {
  cursor: pointer;
  font-weight: 800;
}

.explanation-body {
  display: grid;
  gap: 10px;
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.65;
}

.explanation-body h3 {
  margin: 8px 0 0;
  color: var(--text);
  font-size: 0.92rem;
}

.explanation-body p {
  margin: 0;
}

.explanation-body code {
  padding: 0.08rem 0.28rem;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--panel-2);
  color: var(--text);
  font-size: 0.82rem;
}

dialog {
  width: min(560px, calc(100% - 24px));
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  color: var(--text);
  box-shadow: var(--shadow);
}

dialog::backdrop {
  background: rgba(0, 0, 0, 0.35);
}

.dialog-body {
  display: grid;
  gap: 14px;
}

.dialog-body menu {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: end;
  padding: 0;
}

.weights-form {
  display: grid;
  gap: 10px;
}

.weight-row {
  display: grid;
  grid-template-columns: 120px 1fr 54px;
  gap: 10px;
  align-items: center;
}

.file-action {
  display: inline-flex;
  align-items: center;
}

.file-action input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.toast {
  position: fixed;
  right: 16px;
  bottom: 16px;
  max-width: 360px;
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--text);
  color: var(--bg);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1180px) {
  .workspace {
    grid-template-columns: 280px minmax(0, 1fr);
  }

  .score-panel {
    grid-column: 1 / -1;
    position: static;
    max-height: none;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .total-card {
    grid-row: span 2;
  }
}

@media (max-width: 820px) {
  .studio-shell {
    padding: 10px;
  }

  .app-header,
  .preview-toolbar,
  .section-head {
    align-items: stretch;
    flex-direction: column;
  }

  .workspace,
  .score-panel {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    max-height: none;
  }

  .canvas-frame {
    min-height: 340px;
  }
}

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