:root {
  --accent: #0f6b55;
  --accent-strong: #095442;
  --accent-soft: #edf5f1;
  --bg: #fafaf8;
  --surface: #ffffff;
  --surface-subtle: #f6f6f4;
  --text: #171a1f;
  --muted: #6b7178;
  --muted-light: #8b9197;
  --line: #e1e3df;
  --line-strong: #cdd1cd;
  --success: #35624f;
  --success-soft: #f0f6f3;
  --warning: #8a641f;
  --warning-soft: #faf6eb;
  --danger: #a34850;
  --danger-soft: #fcf4f4;
  --focus: #0f6b55;
  --radius: 6px;
  --shadow: none;
}

html {
  overflow-x: hidden;
  scroll-padding-top: 54px;
}

body {
  min-width: 0;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Yu Gothic UI", "Yu Gothic", Meiryo, sans-serif;
  font-size: 15px;
  line-height: 1.65;
  letter-spacing: 0.006em;
  overflow-wrap: normal;
  word-break: normal;
}

button,
input,
label {
  font: inherit;
}

[hidden] {
  display: none !important;
}

a {
  color: inherit;
  text-underline-offset: 3px;
}

.site-header {
  position: relative;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(250, 250, 248, 0.98);
  box-shadow: none;
}

.site-header-inner {
  width: min(100%, 1120px);
  min-height: 46px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-brand {
  gap: 0;
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 620;
  letter-spacing: -0.012em;
  white-space: nowrap;
}

.site-brand-mark,
.site-brand::before {
  display: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.site-nav a {
  min-height: 44px;
  color: var(--muted-light);
  font-size: 0.69rem;
  font-weight: 450;
  letter-spacing: 0.015em;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav a:hover {
  color: var(--text);
}

.app-shell {
  width: min(100%, 1120px);
  margin: 0 auto;
  padding: 34px 24px 72px;
}

.hero,
.tool-panel,
.result-section,
.content-sections {
  width: min(100%, 1040px);
  max-width: none;
  margin-right: auto;
  margin-left: auto;
}

.hero {
  display: block;
  margin-bottom: 26px;
  padding: 10px 0 0;
}

.hero-context {
  display: none;
}

.hero h1 {
  max-width: 690px;
  margin: 0;
  color: var(--text);
  font-size: clamp(2.35rem, 5.1vw, 4rem);
  font-weight: 650;
  line-height: 1.06;
  letter-spacing: -0.052em;
}

.hero-title-line {
  display: block;
}

.hero-title-accent {
  color: var(--accent);
  font-weight: inherit;
}

.hero p {
  max-width: 640px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.91rem;
  line-height: 1.7;
}

.ad-slot {
  margin: 0;
}

.tool-panel {
  overflow: visible;
  margin-top: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.ledger-column-head,
.ledger-empty-preview,
.tool-action-row {
  display: none;
}

.upload-card {
  display: block;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.upload-card:focus-within {
  background: transparent;
}

.command-bar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: stretch;
  min-height: 66px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--surface);
}

.upload-trigger {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  min-height: 64px;
  padding: 0 22px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: background-color 130ms ease;
}

.upload-trigger:hover {
  background: var(--surface-subtle);
}

.upload-trigger:active {
  transform: none;
  background: #eeeeeb;
}

.upload-plus {
  flex: 0 0 auto;
  color: var(--text);
  font-size: 1.6rem;
  font-weight: 300;
  line-height: 1;
}

.upload-lead {
  min-width: 0;
  margin: 0;
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 580;
  line-height: 1.35;
  white-space: nowrap;
}

#fileCountDisplay {
  display: flex;
  align-items: center;
  min-width: 92px;
  padding: 0 22px;
  border-left: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 480;
  line-height: 1.35;
  text-align: center;
  white-space: nowrap;
}

.btn-main {
  grid-column: auto;
  grid-row: auto;
  align-self: center;
  width: auto;
  min-width: 176px;
  min-height: 52px;
  margin: 6px;
  padding: 0 22px;
  border: 1px solid var(--accent);
  border-radius: 5px;
  background: var(--accent);
  background-image: none;
  box-shadow: none;
  color: #ffffff;
  font-size: 0.84rem;
  font-weight: 620;
  line-height: 1.2;
  white-space: nowrap;
  -webkit-appearance: none;
  appearance: none;
  transition: background-color 130ms ease, border-color 130ms ease;
}

.btn-main:hover:not(:disabled) {
  border-color: var(--accent-strong);
  background: var(--accent-strong);
}

.btn-main:active:not(:disabled) {
  transform: none;
  background: #073f32;
}

.btn-main:disabled {
  border-color: var(--line);
  background: var(--surface-subtle);
  color: var(--muted-light);
  opacity: 1;
  cursor: not-allowed;
}

.upload-card.is-busy .upload-trigger {
  pointer-events: none;
  background: var(--surface-subtle);
  color: var(--muted-light);
}

.action-hint {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.7rem;
  line-height: 1.45;
}

.privacy-note {
  display: flex;
  gap: 7px;
  margin: 7px 0 0;
  padding: 0;
  border: 0;
  color: var(--muted-light);
  font-size: 0.65rem;
  line-height: 1.5;
}

.privacy-note a {
  color: var(--muted);
}

.progress-panel {
  margin: 20px 0 0;
  padding: 14px 0 0;
  border: 0;
  border-top: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
}

.progress-copy {
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 480;
}

.progress-track {
  height: 3px;
  border-radius: 0;
  background: #e6e8e5;
}

.progress-bar {
  border-radius: 0;
  background: var(--accent);
  background-image: none;
}

.summary-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.68rem;
}

.summary-bar span {
  min-width: 0;
  padding: 0;
  border: 0;
  background: transparent;
}

.summary-bar strong {
  margin-left: 4px;
  color: var(--text);
  font-size: 0.78rem;
}

.summary-success strong {
  color: var(--success);
}

.summary-failed strong {
  color: var(--danger);
}

.summary-duplicate strong {
  color: var(--warning);
}

.result-section {
  display: flex;
  flex-direction: column;
  margin-top: 42px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.code-list {
  order: 1;
  display: block;
  overflow: visible;
  border: 0;
  border-top: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.code-item {
  position: relative;
  display: grid;
  grid-template-columns: 54px 170px minmax(0, 1fr) auto 70px;
  grid-template-areas: "thumb info result status actions";
  align-items: center;
  gap: 14px;
  min-width: 0;
  min-height: 80px;
  padding: 13px 0;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.code-item::before {
  display: none;
}

.code-item.is-error {
  background: transparent;
}

.code-item.is-duplicate {
  background: transparent;
  box-shadow: none;
}

.code-item.copied {
  background: var(--success-soft);
}

.thumbnail {
  grid-area: thumb;
  width: 48px;
  height: 48px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--surface-subtle);
  color: var(--muted);
  font-size: 0.72rem;
}

.thumbnail img {
  width: 100%;
  height: 100%;
  border-radius: 4px;
  object-fit: cover;
}

.file-info {
  grid-area: info;
  min-width: 0;
  gap: 1px;
}

.code-num {
  color: var(--muted);
  font-size: 0.67rem;
  font-weight: 560;
}

.file-name {
  display: block;
  overflow: hidden;
  max-width: 100%;
  color: var(--muted-light);
  font-size: 0.64rem;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.result-cell {
  grid-area: result;
  min-width: 0;
}

.result-input-row {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 9px;
}

.code-value {
  min-width: 0;
  color: var(--text);
  font-family: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 1rem;
  font-weight: 610;
  line-height: 1.35;
  letter-spacing: 0.02em;
  overflow-wrap: anywhere;
}

.btn-edit {
  flex: 0 0 auto;
  min-width: 44px;
  min-height: 44px;
  padding: 0 6px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  font-size: 0.69rem;
  font-weight: 480;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.btn-edit:hover {
  color: var(--text);
}

.code-input {
  width: 100%;
  min-width: 0;
  min-height: 44px;
  padding: 6px 8px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  background: var(--surface);
  color: var(--text);
  font-family: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.94rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.code-input:hover,
.code-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
  outline: 0;
}

.item-error-title {
  display: block;
  margin-bottom: 2px;
  color: var(--text);
  font-size: 0.87rem;
  font-weight: 610;
}

.item-message {
  margin: 0;
  color: var(--muted);
  font-size: 0.7rem;
  line-height: 1.45;
}

.item-actions {
  grid-area: actions;
  display: flex;
  gap: 6px;
}

.status-badge {
  grid-area: status;
  justify-self: end;
  min-height: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 540;
  white-space: nowrap;
}

.status-success {
  color: var(--success);
}

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

.status-processing,
.status-preparing {
  color: var(--accent);
}

.duplicate-badge {
  flex: 0 0 auto;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--warning);
  font-size: 0.68rem;
  font-weight: 580;
  white-space: nowrap;
}

.btn-secondary,
.btn-item {
  min-height: 44px;
  padding: 0 13px;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  background: var(--surface);
  background-image: none;
  box-shadow: none;
  color: var(--text);
  font-size: 0.72rem;
  font-weight: 570;
  line-height: 1.2;
  white-space: nowrap;
  -webkit-appearance: none;
  appearance: none;
}

.btn-secondary:hover:not(:disabled),
.btn-item:hover:not(:disabled) {
  border-color: #9ea7a2;
  background: var(--surface-subtle);
  color: var(--accent-strong);
}

.btn-secondary:active:not(:disabled),
.btn-item:active:not(:disabled) {
  background: #eceeeb;
}

.btn-secondary:disabled,
.btn-item:disabled {
  border-color: var(--line);
  background: var(--surface-subtle);
  color: var(--muted-light);
  opacity: 1;
}

.copied-btn {
  border-color: #aac9bc;
  background: var(--success-soft);
  color: var(--success);
}

.result-header {
  order: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  padding: 14px 0;
  border: 0;
  border-bottom: 1px solid var(--line);
}

.result-heading {
  min-width: 0;
  margin: 0;
}

.result-title {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.result-help {
  margin: 0;
  color: var(--text);
  font-size: 0.84rem;
  font-weight: 550;
  line-height: 1.4;
  white-space: nowrap;
}

.result-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.result-utility-actions {
  display: flex;
  gap: 7px;
}

.btn-copy-all {
  min-width: 144px;
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
}

.btn-copy-all:hover:not(:disabled) {
  border-color: var(--accent-strong);
  background: var(--accent-strong);
  color: #ffffff;
}

.btn-retry-all {
  border-color: #d6b8bb;
  color: var(--danger);
}

.content-sections {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 52px;
  margin-top: 68px;
  padding: 0;
  border-top: 1px solid var(--line-strong);
  counter-reset: none;
}

.info-section,
.info-card {
  min-width: 0;
  margin: 0;
  padding: 30px 0 34px;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  counter-increment: none;
}

.steps-section {
  order: 1;
  grid-column: 1 / -1;
}

.info-section[aria-labelledby="photoTipsTitle"] {
  order: 2;
}

.info-section[aria-labelledby="useCasesTitle"] {
  order: 3;
}

.info-section[aria-labelledby="aboutTitle"] {
  order: 4;
}

.info-section[aria-labelledby="resultCheckTitle"] {
  order: 5;
}

.faq-section {
  order: 6;
}

.info-section:not(.faq-section) h2,
.faq-section h2 {
  display: block;
  margin: 0 0 15px;
  color: var(--text);
  font-size: 1rem;
  font-weight: 640;
  line-height: 1.42;
  letter-spacing: -0.014em;
}

.info-section:not(.faq-section) h2::before {
  display: none;
  content: none;
}

.info-section p,
.info-section li {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.78;
}

.info-section p {
  margin: 0;
}

.info-section ul {
  margin: 0;
  padding-left: 1.15em;
}

.info-section li + li {
  margin-top: 6px;
}

.steps-section ol {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: steps;
}

.steps-section li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 4px 10px;
  align-content: start;
  min-width: 0;
  padding: 0 22px;
  border-left: 1px solid var(--line);
  counter-increment: steps;
}

.steps-section li:first-child {
  padding-left: 0;
  border-left: 0;
}

.steps-section li:last-child {
  padding-right: 0;
}

.steps-section li::before {
  grid-column: 1;
  grid-row: 1 / span 2;
  content: counter(steps);
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 560;
  line-height: 1.7;
}

.steps-section li strong {
  grid-column: 2;
  color: var(--text);
  font-size: 0.79rem;
  font-weight: 590;
  line-height: 1.5;
  white-space: nowrap;
}

.steps-section li span {
  grid-column: 2;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.65;
}

.section-lead {
  margin-bottom: 12px !important;
}

.lookalike-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 5px 18px;
  margin: 12px 0 14px !important;
  padding: 0 !important;
  list-style: none;
}

.lookalike-list code {
  padding: 0;
  border-radius: 0;
  background: transparent;
  color: var(--text);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-weight: 700;
}

.faq-section {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 0 40px;
  padding-top: 34px;
  border-bottom: 0;
}

.faq-section h2 {
  grid-row: 1 / span 6;
}

.faq-section details {
  margin: 0;
  border: 0;
  border-top: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
}

.faq-section details:last-child {
  border-bottom: 1px solid var(--line);
}

.faq-section summary {
  min-height: 50px;
  padding: 14px 2px;
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 570;
  line-height: 1.5;
}

.faq-section summary::after {
  color: var(--muted);
  font-weight: 450;
}

.faq-section details p {
  margin: -2px 30px 16px 2px;
  font-size: 0.77rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg);
}

.site-footer-inner {
  width: min(100%, 1120px);
  margin: 0 auto;
  padding: 26px 24px 30px;
}

.footer-nav {
  gap: 10px 22px;
}

.footer-nav a,
.copyright {
  color: var(--muted);
  font-size: 0.68rem;
}

button:focus-visible,
a:focus-visible,
.upload-trigger:focus-visible,
.code-input:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

@media (max-width: 760px) {
  .site-header-inner {
    min-height: 44px;
    padding: 0 16px;
  }

  .site-brand {
    font-size: 0.76rem;
  }

  .site-nav {
    gap: 15px;
  }

  .site-nav a {
    font-size: 0.64rem;
  }

  .app-shell {
    padding: 20px 16px 54px;
  }

  .hero {
    margin-bottom: 21px;
    padding-top: 7px;
  }

  .hero h1 {
    max-width: 350px;
    font-size: clamp(2rem, 8.7vw, 2.2rem);
    font-weight: 650;
    line-height: 1.11;
    letter-spacing: -0.045em;
  }

  .hero p {
    max-width: 350px;
    margin-top: 12px;
    font-size: 0.76rem;
    line-height: 1.58;
  }

  .command-bar {
    grid-template-columns: minmax(0, 1fr) auto auto;
    min-height: 62px;
  }

  .upload-trigger {
    min-height: 60px;
    gap: 8px;
    padding: 0 12px;
  }

  .upload-plus {
    font-size: 1.38rem;
  }

  .upload-lead {
    font-size: 0.82rem;
  }

  #fileCountDisplay {
    min-width: 64px;
    padding: 0 10px;
    font-size: 0.68rem;
  }

  .btn-main {
    min-width: 116px;
    min-height: 48px;
    margin: 6px;
    padding: 0 12px;
    font-size: 0.73rem;
  }

  .action-hint {
    font-size: 0.64rem;
  }

  .privacy-note {
    font-size: 0.62rem;
  }

  .result-section {
    margin-top: 31px;
  }

  .code-item {
    grid-template-columns: 46px minmax(0, 1fr) auto;
    grid-template-areas:
      "thumb result actions"
      "thumb info status";
    gap: 5px 10px;
    min-height: 90px;
    padding: 12px 0;
  }

  .thumbnail {
    width: 42px;
    height: 42px;
    align-self: center;
  }

  .file-info {
    align-self: start;
  }

  .code-num,
  .file-name {
    display: inline;
  }

  .code-num::after {
    content: " · ";
  }

  .result-cell,
  .item-actions {
    align-self: end;
  }

  .result-input-row {
    gap: 6px;
  }

  .code-value {
    font-size: 0.9rem;
  }

  .btn-edit {
    min-width: 40px;
    min-height: 44px;
    padding: 0 3px;
    font-size: 0.63rem;
  }

  .btn-item {
    min-width: 66px;
    padding: 0 9px;
    font-size: 0.68rem;
  }

  .status-badge {
    justify-self: end;
    align-self: start;
    font-size: 0.62rem;
  }

  .duplicate-badge {
    font-size: 0.62rem;
  }

  .item-error-title {
    font-size: 0.8rem;
  }

  .item-message {
    font-size: 0.64rem;
  }

  .result-header {
    gap: 10px;
    padding: 12px 0;
  }

  .result-help {
    font-size: 0.76rem;
  }

  .result-actions,
  .result-utility-actions {
    gap: 6px;
  }

  .btn-secondary {
    min-height: 44px;
    padding: 0 10px;
    font-size: 0.66rem;
  }

  .btn-copy-all {
    min-width: 118px;
  }

  .content-sections {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
    margin-top: 48px;
  }

  .info-section,
  .info-card {
    padding: 24px 0 27px;
  }

  .steps-section {
    grid-column: auto;
  }

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

  .steps-section li {
    display: grid;
    grid-template-columns: 16px minmax(0, 1fr);
    gap: 0 5px;
    padding: 0 9px;
  }

  .steps-section li:first-child {
    padding-left: 0;
  }

  .steps-section li:last-child {
    padding-right: 0;
  }

  .steps-section li::before {
    line-height: 1.55;
  }

  .steps-section li strong {
    font-size: 0.69rem;
    line-height: 1.55;
  }

  .steps-section li span {
    display: none;
  }

  .faq-section {
    grid-column: auto;
    display: block;
    padding-top: 28px;
  }

  .faq-section h2 {
    margin-bottom: 12px;
  }

  .site-footer-inner {
    padding: 22px 16px 26px;
  }
}

/* V4.3 upload focus: a calm, self-contained product card. */
.hero-stage {
  padding: 36px 0 38px;
}

.hero-stage::before {
  background: #f5f7f3;
}

.hero-stage .hero,
.hero-stage .tool-panel {
  width: min(100%, 760px);
}

.hero-stage .hero {
  margin-bottom: 24px;
}

.hero-stage .hero h1 {
  color: #1c211e;
}

.hero-stage .hero-title-accent {
  color: #167357;
}

.hero-stage .hero p {
  color: #626a65;
}

.upload-card--guided {
  padding: 25px;
  border: 1px solid #e0e5e1;
  border-radius: 18px;
  background: #ffffff;
  box-shadow: 0 12px 30px rgba(25, 45, 36, 0.07);
}

.upload-card--guided:focus-within {
  background: #ffffff;
}

.upload-card-heading {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 14px;
}

.upload-card-heading > div {
  min-width: 0;
}

.upload-icon {
  display: grid;
  width: 48px;
  height: 48px;
  flex: 0 0 48px;
  place-items: center;
  border-radius: 50%;
  background: #eaf4ef;
  color: #167357;
}

.upload-icon svg {
  width: 22px;
  height: 22px;
}

.upload-card--guided .upload-lead {
  margin: 0 0 3px;
  color: #1c211e;
  font-size: 1.02rem;
  font-weight: 650;
  line-height: 1.4;
  letter-spacing: -0.018em;
  white-space: normal;
}

.upload-description {
  margin: 0;
  color: #6d756f;
  font-size: 0.78rem;
  line-height: 1.55;
}

.upload-description span {
  display: inline-block;
}

.upload-empty-state {
  display: flex;
  min-width: 0;
  min-height: 82px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 20px 0 14px;
  padding: 14px 18px;
  border: 1px dashed #d5ddd7;
  border-radius: 12px;
  background: #fafbfa;
  color: #747c77;
}

.upload-empty-icon {
  display: grid;
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
  place-items: center;
  color: #7b9b8e;
}

.upload-empty-icon svg {
  width: 21px;
  height: 21px;
}

.upload-card--guided #fileCountDisplay {
  display: block;
  min-width: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  font-size: 0.78rem;
  font-weight: 500;
  line-height: 1.5;
  text-align: left;
  white-space: normal;
}

.hero-stage .upload-card--guided #fileCountDisplay {
  background: transparent;
  color: #aeb5b1;
}

.hero-stage .upload-card--guided .upload-trigger {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 20px;
  width: 100%;
  min-height: 56px;
  align-items: center;
  gap: 10px;
  padding: 0 18px;
  border: 1px solid #146c52;
  border-radius: 12px;
  background: #167357;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12), 0 4px 12px rgba(15, 87, 65, 0.12);
  color: #ffffff;
  font-size: 0.9rem;
  font-weight: 650;
  line-height: 1.3;
  text-align: center;
}

.hero-stage .upload-card--guided .upload-trigger:hover {
  border-color: #0f6049;
  background: #12694f;
  color: #ffffff;
}

.hero-stage .upload-card--guided .upload-trigger:active {
  background: #0f6049;
}

.upload-card--guided .upload-plus {
  color: #d9eee5;
  font-size: 1.45rem;
  font-weight: 300;
  text-align: left;
}

.upload-chevron {
  color: #cce4da;
  font-size: 1.35rem;
  font-weight: 300;
  line-height: 1;
  text-align: right;
}

.upload-card--guided .btn-main {
  width: 100%;
  min-width: 0;
  min-height: 52px;
  margin: 10px 0 0;
  border-radius: 11px;
  font-size: 0.85rem;
}

.hero-stage .upload-card--guided .btn-main:disabled {
  border-color: #e4e7e5;
  background: #eef0ef;
  color: #929995;
  box-shadow: none;
}

.upload-card--guided .privacy-note {
  margin: 13px 0 0;
  color: #7b837e;
  font-size: 0.68rem;
  line-height: 1.55;
}

.upload-card--guided .privacy-note a,
.hero-stage .upload-card--guided .privacy-note a {
  color: #52615a;
  font-weight: 550;
  white-space: nowrap;
}

.upload-card--guided .action-hint,
.hero-stage .upload-card--guided .action-hint {
  margin: 17px 0 0;
  padding: 14px 0 0;
  border-top: 1px solid #e7eae8;
  color: #68716b;
  font-size: 0.72rem;
  line-height: 1.55;
  text-align: center;
}

.upload-card--guided.is-busy .upload-trigger {
  border-color: #dfe3e0;
  background: #f0f2f0;
  box-shadow: none;
  color: #8d9490;
}

.upload-card--guided.is-busy .upload-plus,
.upload-card--guided.is-busy .upload-chevron {
  color: #9ca39f;
}

.hero-stage .progress-panel {
  width: min(100%, 760px);
  margin: 18px auto 0;
  padding-top: 16px;
  border-top-color: #dbe1dc;
}

.hero-stage .progress-copy,
.hero-stage .summary-bar strong {
  color: #25302a;
}

.hero-stage .summary-bar,
.hero-stage #progressText {
  color: #657069;
}

.hero-stage .progress-track {
  background: #dce3df;
}

.hero-stage .progress-bar {
  background: #29866a;
}

@media (max-width: 760px) {
  .hero-stage {
    padding: 24px 0 28px;
  }

  .hero-stage .hero {
    margin-bottom: 18px;
  }

  .hero-stage .hero p {
    color: #626a65;
  }

  .upload-card--guided {
    padding: 19px;
    border-radius: 16px;
    box-shadow: 0 9px 24px rgba(25, 45, 36, 0.065);
  }

  .upload-card-heading {
    gap: 11px;
  }

  .upload-icon {
    width: 44px;
    height: 44px;
    flex-basis: 44px;
  }

  .upload-icon svg {
    width: 20px;
    height: 20px;
  }

  .upload-card--guided .upload-lead {
    font-size: 0.94rem;
  }

  .upload-description {
    font-size: 0.71rem;
    line-height: 1.5;
  }

  .upload-empty-state {
    min-height: 72px;
    margin: 16px 0 12px;
    padding: 12px;
    border-radius: 10px;
  }

  .hero-stage .upload-card--guided .upload-trigger {
    min-height: 54px;
    padding: 0 15px;
    border-radius: 11px;
  }

  .upload-card--guided .btn-main {
    min-height: 50px;
  }

  .upload-card--guided .privacy-note {
    margin-top: 12px;
    font-size: 0.66rem;
  }

  .upload-card--guided .action-hint,
  .hero-stage .upload-card--guided .action-hint {
    margin-top: 14px;
    padding-top: 12px;
    font-size: 0.68rem;
  }
}

@media (max-width: 350px) {
  .upload-card--guided {
    padding: 15px;
  }

  .upload-card-heading {
    align-items: flex-start;
  }

  .upload-icon {
    width: 40px;
    height: 40px;
    flex-basis: 40px;
  }

  .upload-description {
    font-size: 0.67rem;
  }

  .upload-empty-state {
    min-height: 66px;
    margin-top: 14px;
  }

  .hero-stage .upload-card--guided .upload-trigger {
    grid-template-columns: 26px minmax(0, 1fr) 16px;
    gap: 7px;
    padding: 0 13px;
  }
}

@media (max-width: 370px) {
  .site-header-inner {
    padding-right: 13px;
    padding-left: 13px;
  }

  .site-brand {
    font-size: 0.7rem;
  }

  .site-nav {
    gap: 11px;
  }

  .site-nav a {
    font-size: 0.59rem;
  }

  .app-shell {
    padding-right: 13px;
    padding-left: 13px;
  }

  .hero h1 {
    max-width: 300px;
    font-size: 1.83rem;
  }

  .hero p {
    font-size: 0.71rem;
  }

  .upload-trigger {
    gap: 6px;
    padding: 0 9px;
  }

  .upload-plus {
    font-size: 1.26rem;
  }

  .upload-lead {
    font-size: 0.75rem;
  }

  #fileCountDisplay {
    min-width: 56px;
    padding: 0 7px;
    font-size: 0.61rem;
  }

  .btn-main {
    min-width: 104px;
    padding: 0 8px;
    font-size: 0.66rem;
  }

  .privacy-note > span:first-child {
    display: none;
  }

  .code-item {
    grid-template-columns: 42px minmax(0, 1fr) auto;
    column-gap: 8px;
  }

  .thumbnail {
    width: 38px;
    height: 38px;
  }

  .code-value {
    font-size: 0.82rem;
  }

  .btn-edit {
    min-width: 34px;
    font-size: 0.59rem;
  }

  .btn-item {
    min-width: 60px;
    padding: 0 7px;
    font-size: 0.63rem;
  }

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

  .btn-copy-all {
    min-width: 104px;
  }

  .btn-secondary {
    padding: 0 8px;
    font-size: 0.61rem;
  }

  .steps-section li {
    grid-template-columns: 13px minmax(0, 1fr);
    padding: 0 5px;
  }

  .steps-section li strong {
    font-size: 0.62rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* V4.3 contrast pass: one dark product stage, then restrained light sections. */
.app-shell {
  padding-top: 0;
  background: #ffffff;
}

.hero-stage {
  position: relative;
  z-index: 0;
  isolation: isolate;
  padding: 42px 0 34px;
}

.hero-stage::before {
  position: absolute;
  z-index: -1;
  inset-block: 0;
  left: 50%;
  width: 100vw;
  transform: translateX(-50%);
  background: #202522;
  content: "";
}

.hero-stage .hero {
  margin-bottom: 25px;
  padding-top: 0;
}

.hero-stage .hero h1 {
  color: #f7f8f7;
}

.hero-stage .hero-title-accent {
  color: #62bd9c;
}

.hero-stage .hero p {
  color: #b8bfbb;
}

.hero-stage .command-bar {
  border-color: #d9dedb;
  background: #ffffff;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08);
}

.hero-stage .upload-trigger {
  background: #ffffff;
  color: var(--text);
}

.hero-stage .upload-trigger:hover {
  background: #f6f7f5;
  color: var(--accent-strong);
}

.hero-stage #fileCountDisplay {
  background: #f6f7f5;
  color: #747b77;
}

.hero-stage .btn-main:disabled {
  border-color: #e4e7e5;
  background: #eff1ef;
  color: #8d9490;
}

.hero-stage .action-hint,
.hero-stage .privacy-note {
  color: #9fa7a2;
}

.hero-stage .privacy-note a {
  color: #d6dbd8;
}

.hero-stage .privacy-note a:hover {
  color: #ffffff;
}

.hero-stage .progress-panel {
  margin-top: 18px;
  padding-right: 0;
  padding-left: 0;
  border-top-color: #3b423e;
  background: transparent;
}

.hero-stage .progress-copy,
.hero-stage .summary-bar strong {
  color: #f2f4f2;
}

.hero-stage .summary-bar,
.hero-stage #progressText {
  color: #aeb6b1;
}

.hero-stage .progress-track {
  background: #3a413d;
}

.hero-stage .progress-bar {
  background: #62bd9c;
}

.result-section {
  margin-top: 0;
  padding-top: 30px;
  background: #ffffff;
}

.content-sections {
  margin-top: 0;
  border-top: 0;
  background: #ffffff;
}

.steps-section,
.faq-section {
  position: relative;
  z-index: 0;
  isolation: isolate;
}

.steps-section::before,
.faq-section::before {
  position: absolute;
  z-index: -1;
  inset-block: 0;
  left: 50%;
  width: 100vw;
  transform: translateX(-50%);
  background: #f7f7f5;
  content: "";
}

.steps-section {
  padding-top: 31px;
  padding-bottom: 33px;
  border-top: 0;
}

.faq-section {
  padding-top: 34px;
  padding-bottom: 38px;
  border-top: 0;
}

@media (max-width: 760px) {
  .hero-stage {
    padding: 25px 0 27px;
  }

  .hero-stage .hero {
    margin-bottom: 20px;
  }

  .hero-stage .hero p {
    color: #b8bfbb;
  }

  .hero-stage .progress-panel {
    margin-top: 15px;
    padding-top: 14px;
    padding-bottom: 2px;
  }

  .result-section {
    padding-top: 24px;
  }

  .steps-section {
    padding-top: 23px;
    padding-bottom: 25px;
  }

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

  .steps-section li,
  .steps-section li:first-child,
  .steps-section li:last-child {
    grid-template-columns: 22px minmax(0, 1fr);
    gap: 2px 10px;
    padding: 11px 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .steps-section li:first-child {
    border-top: 0;
  }

  .steps-section li::before {
    grid-column: 1;
    grid-row: 1 / span 2;
    font-size: 0.69rem;
    line-height: 1.65;
  }

  .steps-section li strong {
    grid-column: 2;
    font-size: 0.78rem;
    line-height: 1.5;
  }

  .steps-section li span {
    display: block;
    grid-column: 2;
    color: var(--muted);
    font-size: 0.69rem;
    line-height: 1.55;
  }

  .faq-section {
    padding-top: 27px;
    padding-bottom: 31px;
  }
}

/* Keep the guided white card inside the approved dark product stage. */
.hero-stage {
  padding: 42px 0 34px;
}

.hero-stage::before {
  background: #202522;
}

.hero-stage .hero {
  margin-bottom: 25px;
}

.hero-stage .hero h1 {
  color: #f7f8f7;
}

.hero-stage .hero-title-accent {
  color: #62bd9c;
}

.hero-stage .hero p {
  color: #b8bfbb;
}

.hero-stage .progress-panel {
  border-top-color: #3b423e;
}

.hero-stage .progress-copy,
.hero-stage .summary-bar strong {
  color: #f2f4f2;
}

.hero-stage .summary-bar,
.hero-stage #progressText {
  color: #aeb6b1;
}

.hero-stage .progress-track {
  background: #3a413d;
}

.hero-stage .progress-bar {
  background: #62bd9c;
}

@media (max-width: 760px) {
  .hero-stage {
    padding: 25px 0 27px;
  }

  .hero-stage .hero {
    margin-bottom: 20px;
  }

  .hero-stage .hero p {
    color: #b8bfbb;
  }
}

/* V4.3 dark control panel: integrate the guided upload UI into the hero. */
.hero-stage::before {
  background: #1c201e;
}

.upload-card--guided {
  border-color: #3a403c;
  background: #272c29;
  box-shadow: 0 10px 24px rgba(7, 10, 8, 0.14);
}

.upload-card--guided:focus-within {
  border-color: #4b5f55;
  background: #272c29;
}

.upload-icon {
  background: #303632;
  color: #62bd9c;
}

.upload-card--guided .upload-lead {
  color: #f4f5f3;
}

.upload-description {
  color: #aeb5b1;
}

.upload-empty-state {
  border-color: #3a403c;
  background: #303632;
  color: #aeb5b1;
}

.upload-empty-icon {
  color: #7fae9a;
}

.hero-stage .upload-card--guided .upload-trigger {
  border-color: #247b60;
  background: #167357;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.hero-stage .upload-card--guided .upload-trigger:hover {
  border-color: #2c8a6c;
  background: #1a7c5e;
}

.hero-stage .upload-card--guided .upload-trigger:active {
  background: #12694f;
}

.hero-stage .upload-card--guided .btn-main:disabled {
  border-color: #414844;
  background: #333936;
  color: #858e89;
}

.upload-card--guided .privacy-note {
  color: #98a19c;
}

.upload-card--guided .privacy-note a,
.hero-stage .upload-card--guided .privacy-note a {
  color: #c7d0cb;
}

.upload-card--guided .privacy-note a:hover,
.hero-stage .upload-card--guided .privacy-note a:hover {
  color: #f4f5f3;
}

.upload-card--guided .action-hint,
.hero-stage .upload-card--guided .action-hint {
  border-top-color: #3a403c;
  color: #aeb5b1;
}

.upload-card--guided.is-busy .upload-trigger {
  border-color: #414844;
  background: #333936;
  color: #858e89;
}

.upload-card--guided.is-busy .upload-plus,
.upload-card--guided.is-busy .upload-chevron {
  color: #727b76;
}

/* V4.3 lower experience: continue the product's dark visual language below the hero. */
.app-shell {
  padding-bottom: 0;
}

.result-section,
.content-sections .info-section {
  position: relative;
  z-index: 0;
  isolation: isolate;
}

.result-section::before,
.content-sections .info-section::before {
  position: absolute;
  z-index: -1;
  inset-block: 0;
  left: 50%;
  width: 100vw;
  transform: translateX(-50%);
  content: "";
}

.result-section {
  margin-top: 0;
  padding-top: 31px;
  background: transparent;
}

.result-section::before {
  background: #202422;
}

.result-section .code-list,
.result-section .code-item,
.result-section .result-header {
  border-color: #3a403c;
}

.result-section .code-value,
.result-section .item-error-title,
.result-section .result-help {
  color: #f1f3f1;
}

.result-section .code-num,
.result-section .file-name,
.result-section .item-message,
.result-section .btn-edit {
  color: #9ea7a2;
}

.result-section .btn-edit:hover {
  color: #dce1de;
}

.result-section .thumbnail {
  border-color: #414844;
  background: #2b302d;
}

.result-section .code-input {
  border-color: #3b9778;
  background: #292e2b;
  color: #f4f5f3;
}

.result-section .btn-secondary,
.result-section .btn-item {
  border-color: #454d48;
  background: #292e2b;
  color: #e1e5e2;
}

.result-section .btn-secondary:hover:not(:disabled),
.result-section .btn-item:hover:not(:disabled) {
  border-color: #607069;
  background: #313733;
  color: #ffffff;
}

.result-section .btn-secondary:active:not(:disabled),
.result-section .btn-item:active:not(:disabled) {
  background: #252a27;
}

.result-section .btn-secondary:disabled,
.result-section .btn-item:disabled {
  border-color: #363c38;
  background: #292e2b;
  color: #747d78;
}

.result-section .btn-copy-all {
  border-color: #247b60;
  background: #167357;
  color: #ffffff;
}

.result-section .btn-copy-all:hover:not(:disabled) {
  border-color: #2c8a6c;
  background: #1a7c5e;
}

.result-section .btn-copy-item {
  min-width: 76px;
  min-height: 44px;
  border-color: #3b8a6c;
  background: #2f7d62;
  color: #f3f7f5;
  font-weight: 650;
}

.result-section .btn-copy-item:hover:not(:disabled) {
  border-color: #4b9b7e;
  background: #37896c;
  color: #ffffff;
}

.result-section .btn-copy-item:active:not(:disabled) {
  border-color: #347d63;
  background: #276a53;
}

.result-section .btn-copy-item:focus-visible {
  outline-color: #79c3a6;
  outline-offset: 3px;
}

.result-section .btn-copy-item:disabled {
  border-color: #3c443f;
  background: #2b302d;
  color: #78817c;
}

.result-section .btn-copy-item.copied-btn {
  border-color: #4b8f73;
  background: #285f4e;
  color: #c9e9dc;
}

.result-section .btn-retry {
  min-width: 76px;
  min-height: 44px;
  border-color: #3b8a6c;
  background: #26342f;
  color: #cde3da;
  font-weight: 620;
}

.result-section .btn-retry:hover:not(:disabled) {
  border-color: #4b9b7e;
  background: #2a463b;
  color: #eef5f2;
}

.result-section .btn-retry:active:not(:disabled) {
  border-color: #347d63;
  background: #223b32;
}

.result-section .btn-retry:focus-visible {
  outline-color: #79c3a6;
  outline-offset: 3px;
}

.result-section .btn-retry:disabled {
  border-color: #3c443f;
  background: #292e2b;
  color: #78817c;
}

.result-section .btn-retry-all {
  border-color: #755155;
  color: #e0a5aa;
}

.result-section .status-success {
  color: #7dc5a8;
}

.result-section .status-error {
  color: #e5a1a7;
}

.result-section .status-processing,
.result-section .status-preparing {
  color: #76bfa2;
}

.result-section .duplicate-badge,
.result-section .summary-duplicate strong {
  color: #c8a66a;
}

.result-section .code-item.copied {
  background: rgba(31, 128, 94, 0.12);
}

.content-sections {
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin-top: 0;
  border-top: 0;
  background: transparent;
}

.content-sections .info-section,
.content-sections .info-card {
  grid-column: 1;
  padding: 38px 0 41px;
  border: 0;
  border-bottom: 1px solid #353b37;
  background: transparent;
}

.content-sections .steps-section::before {
  background: #222624;
}

.content-sections .info-section[aria-labelledby="photoTipsTitle"]::before {
  background: #1f2321;
}

.content-sections .info-section[aria-labelledby="useCasesTitle"]::before {
  background: #242826;
}

.content-sections .info-section[aria-labelledby="aboutTitle"]::before {
  background: #202422;
}

.content-sections .info-section[aria-labelledby="resultCheckTitle"]::before {
  background: #222725;
}

.content-sections .faq-section::before {
  background: #1c201e;
}

.content-sections .info-section:not(.faq-section) h2,
.content-sections .faq-section h2 {
  margin-bottom: 17px;
  color: #f1f3f1;
  font-weight: 620;
  letter-spacing: -0.018em;
}

.content-sections .info-section p,
.content-sections .info-section li {
  color: #aeb5b1;
}

.content-sections .steps-section ol {
  border-top: 1px solid #3a403c;
}

.content-sections .steps-section li,
.content-sections .steps-section li:first-child,
.content-sections .steps-section li:last-child {
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 3px 12px;
  padding: 14px 0;
  border-top: 0;
  border-bottom: 1px solid #3a403c;
  border-left: 0;
}

.content-sections .steps-section li::before {
  border-radius: 0;
  background: transparent;
  color: #62bd9c;
  font-variant-numeric: tabular-nums;
  font-weight: 650;
}

.content-sections .steps-section li strong,
.content-sections .editorial-list strong {
  color: #eef1ef;
  font-weight: 580;
}

.content-sections .steps-section li span,
.content-sections .editorial-list span {
  color: #9fa8a3;
}

.editorial-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0 !important;
  padding: 0 !important;
  border-top: 1px solid #3a403c;
  list-style: none;
}

.content-sections .editorial-list li,
.content-sections .editorial-list li + li {
  display: grid;
  grid-template-columns: minmax(112px, 0.38fr) minmax(0, 1fr);
  gap: 10px 18px;
  min-width: 0;
  margin: 0;
  padding: 14px 0;
  border-bottom: 1px solid #3a403c;
}

.content-sections .editorial-list li:nth-child(odd) {
  padding-right: 24px;
}

.content-sections .editorial-list li:nth-child(even) {
  padding-left: 24px;
}

.content-sections .editorial-list strong,
.content-sections .editorial-list span {
  display: block;
  min-width: 0;
  font-size: 0.79rem;
  line-height: 1.65;
}

.content-sections .lookalike-list {
  border-top: 1px solid #3a403c;
  border-bottom: 1px solid #3a403c;
  padding: 11px 0 !important;
}

.content-sections .lookalike-list code {
  color: #75c1a3;
}

.content-sections .faq-section {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 0 40px;
  padding-top: 39px;
  padding-bottom: 43px;
  border-bottom: 0;
}

.content-sections .faq-section details,
.content-sections .faq-section details:last-child {
  border-color: #3a403c;
  background: transparent;
}

.content-sections .faq-section summary {
  color: #e8ebe9;
  font-weight: 540;
}

.content-sections .faq-section summary::after {
  color: #62bd9c;
}

.content-sections .faq-section details p {
  color: #9fa8a3;
}

.site-footer {
  border-top-color: #303632;
  background: #181b19;
}

.site-footer .footer-nav a,
.site-footer .copyright {
  color: #8f9893;
}

.site-footer .footer-nav a:hover {
  color: #dfe4e1;
}

@media (max-width: 760px) {
  .result-section {
    padding-top: 24px;
  }

  .content-sections .info-section,
  .content-sections .info-card {
    padding: 29px 0 31px;
  }

  .content-sections .steps-section {
    padding-top: 27px;
    padding-bottom: 29px;
  }

  .content-sections .steps-section ol {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .content-sections .editorial-list li,
  .content-sections .editorial-list li + li,
  .content-sections .editorial-list li:nth-child(odd),
  .content-sections .editorial-list li:nth-child(even) {
    grid-template-columns: minmax(104px, 0.42fr) minmax(0, 1fr);
    gap: 8px 13px;
    padding: 12px 0;
  }

  .content-sections .editorial-list strong,
  .content-sections .editorial-list span {
    font-size: 0.75rem;
    line-height: 1.62;
  }

  .content-sections .faq-section {
    display: block;
    padding-top: 30px;
    padding-bottom: 34px;
  }
}

@media (max-width: 360px) {
  .content-sections .editorial-list li,
  .content-sections .editorial-list li + li,
  .content-sections .editorial-list li:nth-child(odd),
  .content-sections .editorial-list li:nth-child(even) {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }
}