:root {
  color-scheme: light;
  --bg: #f5f8fb;
  --surface: #ffffff;
  --surface-2: #eef5fb;
  --surface-3: #f9fcff;
  --text: #142033;
  --muted: #65748a;
  --line: #d9e3ef;
  --blue: #2364aa;
  --blue-2: #1f7cc4;
  --green: #15836f;
  --green-2: #24a186;
  --amber: #b7791f;
  --red: #c53030;
  --shadow: 0 18px 45px rgba(31, 50, 77, 0.11);
  --radius: 8px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
}

button,
input,
select {
  font: inherit;
}

button,
a,
select,
input[type="file"] {
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

.ui-icon {
  display: inline-grid;
  place-items: center;
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
}

.ui-icon svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

.image-app {
  min-height: 100vh;
}

.image-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: 245px minmax(240px, 1fr) auto auto;
  gap: 14px;
  align-items: center;
  min-height: 76px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--blue), var(--green));
  color: #fff;
  box-shadow: 0 10px 24px rgba(35, 100, 170, 0.22);
}

.brand-mark .ui-icon,
.brand-mark .ui-icon svg {
  width: 22px;
  height: 22px;
}

.brand span:last-child {
  display: grid;
  min-width: 0;
  line-height: 1.1;
}

.brand strong {
  font-size: 1.02rem;
  letter-spacing: 0;
}

.brand small {
  color: var(--muted);
  font-size: 0.76rem;
}

.global-search {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--muted);
}

.global-search input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
}

.header-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 800;
}

.header-links a,
.api-button,
.ghost-button,
.download-all,
.secondary-action,
.icon-tool {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-weight: 800;
}

.header-links a {
  border-color: transparent;
  background: transparent;
}

.header-links a:hover,
.api-button:hover,
.ghost-button:hover,
.download-all:hover,
.secondary-action:hover,
.icon-tool:hover {
  border-color: color-mix(in srgb, var(--blue) 42%, var(--line));
  color: var(--blue);
}

main {
  display: grid;
  gap: 16px;
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 16px;
}

.format-strip,
.converter-shell,
.batch-panel,
.popular-section,
.format-matrix {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.format-strip {
  display: grid;
  grid-template-columns: 245px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  padding: 12px 14px;
}

.format-strip-title strong {
  display: block;
  line-height: 1.25;
}

.eyebrow {
  display: block;
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.format-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: thin;
}

.format-chip {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 38px;
  min-width: 82px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--text);
  font-weight: 900;
}

.format-chip .format-mini {
  display: inline-grid;
  place-items: center;
  width: 25px;
  height: 25px;
  border-radius: 6px;
  background: var(--surface);
  color: var(--blue);
}

.format-chip .format-mini .ui-icon,
.format-chip .format-mini .ui-icon svg {
  width: 15px;
  height: 15px;
}

.format-chip.active {
  border-color: color-mix(in srgb, var(--green) 38%, var(--line));
  background: color-mix(in srgb, var(--green) 10%, var(--surface));
  color: var(--green);
}

.format-chip.active .format-mini {
  color: var(--green);
}

.converter-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 0;
  overflow: hidden;
}

.workflow-panel,
.settings-panel,
.batch-panel,
.popular-section,
.format-matrix {
  padding: 16px;
}

.settings-panel {
  display: grid;
  align-content: start;
  gap: 14px;
  border-left: 1px solid var(--line);
  background: var(--surface-3);
}

.panel-head,
.section-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

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

.panel-head h1,
.panel-head h2,
.section-heading h2 {
  margin: 0;
  letter-spacing: 0;
  line-height: 1.15;
}

.panel-head h1 {
  font-size: clamp(1.7rem, 3vw, 2.45rem);
}

.panel-head h2,
.section-heading h2 {
  font-size: 1.12rem;
}

.panel-head.small {
  align-items: center;
  margin-bottom: 0;
}

.quick-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.icon-tool {
  width: 38px;
  padding: 0;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 38px;
  padding: 0 10px;
  border: 1px solid color-mix(in srgb, var(--green) 36%, var(--line));
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--green) 9%, var(--surface));
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 900;
  white-space: nowrap;
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}

.step-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 10px;
  align-items: center;
  min-height: 78px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
}

.step-icon {
  grid-row: span 2;
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--blue);
}

.step-card.active {
  border-color: color-mix(in srgb, var(--blue) 42%, var(--line));
  background: color-mix(in srgb, var(--blue) 8%, var(--surface));
}

.step-card small {
  color: var(--muted);
  line-height: 1.35;
}

.dropzone {
  position: relative;
  display: grid;
  place-items: center;
  gap: 8px;
  min-height: 205px;
  padding: 18px;
  border: 2px dashed color-mix(in srgb, var(--blue) 45%, var(--line));
  border-radius: var(--radius);
  background: linear-gradient(180deg, color-mix(in srgb, var(--blue) 7%, var(--surface)), #fff);
  text-align: center;
}

.dropzone.dragover {
  border-color: var(--green);
  background: color-mix(in srgb, var(--green) 10%, var(--surface));
}

.dropzone input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.upload-icon {
  display: inline-grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: var(--radius);
  background: var(--blue);
  color: #fff;
  box-shadow: 0 14px 28px rgba(35, 100, 170, 0.22);
}

.upload-icon .ui-icon,
.upload-icon .ui-icon svg {
  width: 28px;
  height: 28px;
}

.dropzone small {
  max-width: 40rem;
  color: var(--muted);
  line-height: 1.45;
}

.drop-action {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 34px;
  padding: 0 11px;
  border: 1px solid color-mix(in srgb, var(--blue) 34%, var(--line));
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--blue);
  font-size: 0.84rem;
  font-weight: 900;
}

.workflow-bottom {
  display: grid;
  grid-template-columns: minmax(260px, 0.7fr) minmax(320px, 1fr);
  gap: 10px;
  margin-top: 14px;
}

.mini-files,
.mini-queue {
  min-width: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-3);
}

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

.mini-head .eyebrow {
  margin: 0;
}

.mini-head strong {
  font-size: 0.9rem;
}
.file-preview {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.preview-card,
.queue-row,
.popular-card,
.matrix-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.preview-card {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  min-height: 70px;
  padding: 10px;
}

.preview-thumb,
.sample-thumb {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--blue);
  font-size: 0.72rem;
  font-weight: 900;
}

.preview-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sample-thumb.sky {
  background: linear-gradient(135deg, #e8f4ff, #2364aa);
  color: #fff;
}

.sample-thumb.green {
  background: linear-gradient(135deg, #dff8ee, #15836f);
  color: #fff;
}

.preview-card strong,
.queue-row strong,
.popular-card strong,
.matrix-card strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.preview-card small,
.queue-row small,
.popular-card small,
.matrix-card small {
  color: var(--muted);
  line-height: 1.35;
}

.file-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  min-height: 26px;
  padding: 0 8px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--green) 10%, var(--surface));
  color: var(--green);
  font-size: 0.68rem;
  font-weight: 900;
}

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

.select-row label,
.control-row {
  display: grid;
  gap: 7px;
}

.select-row label > span,
.control-row > span,
.swatch-row > span,
.toggle-row span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 900;
}

select,
input[type="range"] {
  width: 100%;
}

select {
  min-height: 42px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--text);
  outline: 0;
}

select:focus,
.global-search:focus-within {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--blue) 16%, transparent);
}

.convert-arrow {
  display: inline-grid;
  place-items: center;
  min-width: 34px;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--blue);
}

input[type="range"] {
  accent-color: var(--blue);
}

.swatch-row,
.toggle-row {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
}

.swatch {
  width: 30px;
  height: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.swatch.active {
  outline: 3px solid color-mix(in srgb, var(--blue) 22%, transparent);
  border-color: var(--blue);
}

.swatch.transparent {
  background: linear-gradient(45deg, #dce4ee 25%, transparent 25%), linear-gradient(-45deg, #dce4ee 25%, transparent 25%), linear-gradient(45deg, transparent 75%, #dce4ee 75%), linear-gradient(-45deg, transparent 75%, #dce4ee 75%);
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
  background-size: 16px 16px;
}

.swatch.black {
  background: #111827;
}

.swatch.blue {
  background: #2364aa;
}

.toggle-row {
  justify-content: flex-start;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--text);
  font-weight: 800;
}

.toggle-row input {
  accent-color: var(--green);
}

.action-stack {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.primary-action {
  grid-column: 1 / -1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  border: 1px solid var(--blue);
  border-radius: var(--radius);
  background: var(--blue);
  color: #fff;
  font-weight: 900;
}

.primary-action:hover {
  background: var(--blue-2);
}

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

.queue-list {
  display: grid;
  gap: 8px;
}

.queue-list.compact .queue-row {
  min-height: 58px;
  padding: 9px;
}

.queue-row {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr) minmax(90px, auto) auto auto;
  gap: 10px;
  align-items: center;
  min-height: 62px;
  padding: 10px;
  background: var(--surface-2);
}

.file-token {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--blue) 12%, var(--surface));
  color: var(--blue);
  font-size: 0.72rem;
  font-weight: 900;
}

.progress-track {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: color-mix(in srgb, var(--blue) 10%, var(--surface));
}

.progress-track span {
  display: block;
  width: 72%;
  height: 100%;
  border-radius: 999px;
  background: var(--green);
}

.status-ready {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 900;
}

.popular-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
}

.popular-card,
.matrix-card {
  display: grid;
  gap: 8px;
  min-height: 120px;
  padding: 12px;
  background: var(--surface-2);
  color: var(--text);
  text-align: left;
}

.popular-card:hover,
.matrix-card:hover {
  border-color: color-mix(in srgb, var(--blue) 42%, var(--line));
  box-shadow: 0 10px 24px rgba(35, 100, 170, 0.1);
}

.format-icon-pair {
  display: flex;
  align-items: center;
  gap: 8px;
}

.format-icon {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--blue);
  font-size: 0.7rem;
  font-weight: 900;
}

.format-icon .ui-icon,
.format-icon .ui-icon svg {
  width: 18px;
  height: 18px;
}

.format-icon.target {
  color: var(--green);
}

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

.matrix-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.matrix-card {
  min-height: 94px;
}

.empty-note {
  padding: 18px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  text-align: center;
}

@media (max-width: 1160px) {
  .image-header {
    grid-template-columns: 245px minmax(220px, 1fr) auto;
  }

  .api-button {
    display: none;
  }

  .converter-shell {
    grid-template-columns: 1fr;
  }

  .settings-panel {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

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

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

@media (max-width: 860px) {
  .image-header {
    grid-template-columns: 1fr;
    position: static;
  }

  .header-links {
    justify-content: flex-start;
    overflow-x: auto;
  }

  .format-strip,
  .step-grid,
  .workflow-bottom {
    grid-template-columns: 1fr;
  }

  .file-preview,
  .popular-grid,
  .matrix-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .queue-row {
    grid-template-columns: 38px minmax(0, 1fr);
  }

  .status-ready,
  .download-file,
  .progress-track {
    grid-column: 2;
  }

  .download-file {
    width: max-content;
  }
}

@media (max-width: 560px) {
  main,
  .image-header {
    padding: 12px;
  }

  .file-preview,
  .popular-grid,
  .matrix-grid,
  .select-row,
  .action-stack {
    grid-template-columns: 1fr;
  }

  .convert-arrow {
    min-height: 30px;
  }

  .panel-head,
  .section-heading,
  .hero-head {
    align-items: flex-start;
    flex-direction: column;
  }

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