:root {
  color-scheme: light;
  --color-background: #f6f8fb;
  --color-surface: #ffffff;
  --color-surface-subtle: #f8fafc;
  --color-text: #1f2937;
  --color-text-secondary: #475569;
  --color-text-muted: #5b6878;
  --color-text-disabled: #475569;
  --color-border: #d8e1ea;
  --color-border-strong: #b8c5d1;
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-soft: #eff6ff;
  --color-success: #16804a;
  --color-success-soft: #ecfdf3;
  --color-warning: #a15c07;
  --color-warning-soft: #fff8e6;
  --color-error: #c43232;
  --color-error-soft: #fff1f1;
  --radius-control: 8px;
  --radius-card: 12px;
  --shadow-card: 0 1px 2px rgba(16, 24, 40, 0.04), 0 8px 24px rgba(16, 24, 40, 0.06);
  --shadow-dialog: 0 24px 64px rgba(16, 24, 40, 0.18);
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --font-xs: 12px;
  --font-sm: 14px;
  --font-md: 16px;
  --font-lg: 20px;
  --font-xl: 28px;
  --duration-fast: 120ms;
  --duration-normal: 180ms;
  --page-max: 1200px;
  --content-max: 900px;

  /* Legacy aliases keep the existing component rules compatible. */
  --bg: var(--color-background);
  --panel: var(--color-surface);
  --ink: var(--color-text);
  --muted: var(--color-text-muted);
  --line: var(--color-border);
  --accent: var(--color-primary);
  --accent-strong: var(--color-primary-hover);
  --accent-2: var(--color-warning);
  --ok: var(--color-success);
  --danger: var(--color-error);
}

html {
  min-width: 320px;
  min-height: 100%;
  background: var(--color-background);
}

body {
  min-width: 320px;
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  color: var(--color-text);
  background: var(--color-background);
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, sans-serif;
  font-size: var(--font-md);
  line-height: 1.5;
}

body,
button,
input,
select,
textarea {
  letter-spacing: 0;
}

h1,
h2,
h3,
h4,
strong {
  color: var(--color-text);
  text-shadow: none;
}

h1 {
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.25;
}

h2 {
  font-size: clamp(21px, 2.2vw, 28px);
  line-height: 1.3;
}

h3 {
  font-size: 18px;
  line-height: 1.35;
}

small,
.meta-line,
.field-label > span,
.quiz-meta,
.stats-grid span,
.local-processing-note,
.tool-section-title span,
.admin-date-help,
.admin-editor-subtitle {
  color: var(--color-text-muted);
}

img {
  max-width: 100%;
}

button,
input,
select,
textarea {
  min-width: 0;
  font: inherit;
}

button {
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-control);
  color: var(--color-text);
  background: var(--color-surface);
  box-shadow: none;
  transition:
    border-color var(--duration-fast) ease,
    background-color var(--duration-fast) ease,
    color var(--duration-fast) ease,
    box-shadow var(--duration-fast) ease,
    transform var(--duration-fast) ease;
}

button:hover:not(:disabled) {
  border-color: #91a4b7;
  background: var(--color-surface-subtle);
}

button:active:not(:disabled) {
  transform: translateY(1px);
  filter: none;
}

button.primary,
.button-primary {
  border-color: var(--color-primary);
  color: #ffffff;
  background: var(--color-primary);
  font-weight: 700;
}

button.primary:hover:not(:disabled),
.button-primary:hover:not(:disabled) {
  border-color: var(--color-primary-hover);
  background: var(--color-primary-hover);
}

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

.button-ghost {
  border-color: transparent;
  background: transparent;
}

.danger-button {
  border-color: var(--color-error);
  color: #ffffff;
  background: var(--color-error);
}

.danger-button:hover:not(:disabled) {
  border-color: #a92424;
  color: #ffffff;
  background: #a92424;
}

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

button:disabled {
  cursor: not-allowed;
  border-color: #cbd5e1;
  color: var(--color-text-disabled);
  background: #e2e8f0;
  opacity: 1;
}

html {
  scroll-padding-top: calc(80px + env(safe-area-inset-top));
}

.plan-option:disabled {
  opacity: 1;
}

button:focus-visible,
a:focus-visible,
summary:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.28);
  outline-offset: 2px;
}

input,
select,
textarea,
.login-form input,
.answer-form input,
.field-label input,
.field-label select,
.admin-search input,
.admin-secret-input-wrap input,
.study-goal-field input {
  width: 100%;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-control);
  color: var(--color-text);
  background: var(--color-surface);
  box-shadow: none;
}

input,
select {
  min-height: 44px;
  padding: 0 12px;
}

textarea {
  padding: 12px;
}

input::placeholder,
textarea::placeholder {
  color: var(--color-text-muted);
  opacity: 1;
}

.ui-icon,
.button-icon,
.module-icon svg,
.modal-close svg {
  width: 20px;
  height: 20px;
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.button-icon {
  flex: 0 0 auto;
}

.action-row .button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.entry-screen {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: grid;
  place-items: center;
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  background: var(--color-surface);
  animation: none;
  transition: opacity var(--duration-normal) ease, visibility var(--duration-normal) ease;
}

.entry-screen.is-exiting {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

.entry-content {
  display: grid;
  place-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  font-size: 18px;
  animation: entryProductIn var(--duration-normal) ease both;
}

.entry-logo {
  width: 64px;
  height: 64px;
  display: block;
  object-fit: contain;
  border-radius: var(--radius-card);
  filter: none;
  box-shadow: none;
}

.entry-screen.image-failed .entry-logo {
  display: none;
}

.entry-progress {
  width: 72px;
  height: 3px;
  overflow: hidden;
  border-radius: 999px;
  background: #e4e7ec;
}

.entry-progress::after {
  content: "";
  display: block;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: var(--color-primary);
  transform-origin: left;
  animation: entryProgress 520ms ease-out both;
}

@keyframes entryProductIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes entryProgress {
  from { transform: scaleX(0.08); }
  to { transform: scaleX(1); }
}

.app-shell {
  width: 100%;
  max-width: none;
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  padding: 0 0 max(32px, env(safe-area-inset-bottom));
  animation: none;
}

.app-shell.app-shell-pending {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

.app-shell.app-shell-ready {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  animation: appProductIn var(--duration-normal) ease both;
}

@keyframes appProductIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 800;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-6);
  width: 100%;
  min-height: calc(64px + env(safe-area-inset-top));
  padding:
    max(10px, env(safe-area-inset-top))
    max(20px, calc((100vw - var(--page-max)) / 2));
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 1px 3px rgba(16, 24, 40, 0.04);
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text);
  font-size: 17px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.site-brand img {
  width: 36px;
  height: 36px;
  display: block;
  object-fit: contain;
  border-radius: 8px;
  filter: none;
}

.site-brand-copy {
  display: grid;
  gap: 1px;
  line-height: 1.2;
}

.site-brand-copy strong {
  font-size: 17px;
}

.site-brand-copy small {
  color: var(--color-text-muted);
  font-size: 11px;
  font-weight: 500;
}

.version-notice {
  position: fixed;
  top: calc(76px + env(safe-area-inset-top));
  right: max(16px, env(safe-area-inset-right));
  z-index: 850;
  width: min(440px, calc(100vw - 32px));
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto 40px;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-3) var(--space-3) var(--space-4);
  border: 1px solid #b8d0f5;
  border-radius: var(--radius-card);
  color: var(--color-text);
  background: var(--color-surface);
  box-shadow: var(--shadow-dialog);
}

.version-notice strong,
.version-notice p {
  margin: 0;
}

.version-notice p {
  margin-top: 2px;
  color: var(--color-text-secondary);
  font-size: var(--font-sm);
}

.version-notice-close {
  width: 40px;
  min-height: 40px;
  display: grid;
  place-items: center;
  padding: 0;
  border-color: transparent;
}

.version-notice-close svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
}

.site-nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.site-nav-links a {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  border-radius: var(--radius-control);
  color: #344054;
  font-size: var(--font-sm);
  text-decoration: none;
  white-space: nowrap;
}

.site-nav-links a:hover,
.site-nav-links a.active {
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

.site-nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.site-nav-actions button {
  min-height: 40px;
}

.account-menu {
  position: relative;
}

.account-menu summary {
  min-height: 40px;
  display: flex;
  align-items: center;
  padding: 0 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  list-style: none;
  cursor: pointer;
  background: var(--color-surface);
}

.account-menu summary::-webkit-details-marker {
  display: none;
}

.account-menu summary::after {
  content: "";
  width: 7px;
  height: 7px;
  margin-left: 10px;
  border-right: 1.5px solid var(--color-text-muted);
  border-bottom: 1.5px solid var(--color-text-muted);
  transform: rotate(45deg) translateY(-2px);
}

.account-menu[open] summary::after {
  transform: rotate(225deg) translate(-2px, -1px);
}

.account-badge {
  min-height: auto;
  padding: 0;
  border: 0;
  color: #344054;
  background: transparent;
  box-shadow: none;
  font-size: var(--font-sm);
  white-space: nowrap;
}

.account-menu-popover {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 900;
  width: 220px;
  display: grid;
  gap: 4px;
  padding: 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  box-shadow: var(--shadow-dialog);
}

.account-menu-popover button {
  width: 100%;
  justify-content: flex-start;
  border-color: transparent;
  text-align: left;
  background: transparent;
}

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

.button-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-control);
  color: var(--color-text);
  background: var(--color-surface);
  font-weight: 600;
  text-decoration: none;
}

.button-link:hover {
  border-color: #91a4b7;
  background: var(--color-surface-subtle);
}

.public-home {
  width: 100%;
  padding-bottom: var(--space-10);
}

.public-intro {
  position: relative;
  min-height: 390px;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 64px max(24px, calc((100vw - var(--page-max)) / 2));
  border-bottom: 1px solid #cfe0f5;
  background: #eaf2ff;
}

.public-intro::after {
  content: "";
  position: absolute;
  top: 50%;
  right: max(24px, calc((100vw - var(--page-max)) / 2));
  width: 260px;
  height: 260px;
  background: url("/icon-512.png") center / contain no-repeat;
  opacity: 0.12;
  transform: translateY(-50%);
  pointer-events: none;
}

.public-intro-copy {
  position: relative;
  z-index: 1;
  width: min(720px, calc(100% - 240px));
}

.public-intro h1,
.public-section-heading h2,
.public-page-header h1,
.trial-workbench-heading h2 {
  margin: 0;
}

.public-intro h1 {
  margin-top: var(--space-2);
  font-size: 38px;
}

.public-lead {
  max-width: 680px;
  margin: var(--space-4) 0 0;
  color: var(--color-text-secondary);
  font-size: 18px;
  line-height: 1.75;
}

.public-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.public-trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-6);
  margin: var(--space-5) 0 0;
  padding: 0;
  color: var(--color-text-secondary);
  font-size: var(--font-sm);
  list-style: none;
}

.public-trust-list li {
  position: relative;
  padding-left: 18px;
}

.public-trust-list li::before {
  content: "";
  position: absolute;
  top: 7px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
}

.public-section,
.public-page,
.trial-page {
  width: min(100% - 40px, var(--page-max));
  margin: 0 auto;
}

.public-section {
  padding: 64px 0 12px;
}

.public-section-heading,
.public-page-header {
  max-width: 760px;
}

.public-section-heading > p:last-child,
.public-page-header > p:last-child,
.trial-workbench-heading p,
.public-feature-card p,
.public-plan-card p,
.changelog-list p,
.trial-footer p {
  color: var(--color-text-secondary);
}

.public-section-heading h2,
.public-page-header h1 {
  margin-top: var(--space-2);
}

.public-section-heading > p:last-child,
.public-page-header > p:last-child {
  margin: var(--space-3) 0 0;
}

.public-card-grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.public-card-grid-two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.public-tool-category-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.public-feature-card,
.public-plan-card {
  min-width: 0;
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.public-feature-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.public-feature-card h3,
.public-feature-card p,
.public-plan-card h3,
.public-plan-card p {
  margin: 0;
}

.public-feature-card p,
.public-plan-card p {
  margin-top: var(--space-2);
  font-size: var(--font-sm);
}

.public-card-icon {
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid #c7d9f8;
  border-radius: var(--radius-control);
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

.public-card-icon svg,
.public-privacy-band > svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.public-tool-category-grid .public-feature-card {
  display: block;
}

.public-tool-category-grid .public-card-icon {
  margin-bottom: var(--space-4);
}

.public-section-action {
  margin-top: var(--space-5);
}

.public-privacy-band {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, var(--page-max)) auto;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  margin-top: 64px;
  padding: 48px max(24px, calc((100vw - var(--page-max)) / 2));
  border-top: 1px solid #cfe0f5;
  border-bottom: 1px solid #cfe0f5;
  background: #eff6ff;
}

.public-privacy-band h2,
.public-privacy-band p {
  margin: 0;
}

.public-privacy-band h2 {
  margin-top: var(--space-2);
}

.public-privacy-band > div > p:last-child {
  max-width: 780px;
  margin-top: var(--space-3);
  color: var(--color-text-secondary);
}

.public-privacy-band > svg {
  width: 54px;
  height: 54px;
  color: var(--color-primary);
}

.public-page,
.trial-page {
  padding-top: 56px;
}

.changelog-list {
  display: grid;
  gap: 0;
  margin-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.changelog-list article {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: var(--space-6);
  padding: var(--space-6) 0;
  border-bottom: 1px solid var(--color-border);
}

.changelog-entry-header {
  display: grid;
  align-content: start;
  gap: var(--space-2);
}

.changelog-entry-header span {
  width: fit-content;
  padding: 3px 8px;
  border-radius: 999px;
  color: #1e4f9e;
  background: var(--color-primary-soft);
  font-size: var(--font-xs);
  font-weight: 700;
}

.changelog-entry-content h2 {
  margin: 0;
}

.changelog-sections {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4) var(--space-6);
  margin-top: var(--space-4);
}

.changelog-sections section {
  min-width: 0;
}

.changelog-sections h3 {
  margin: 0 0 var(--space-2);
  color: var(--color-text-secondary);
  font-size: var(--font-sm);
}

.changelog-sections ul {
  margin: 0;
  padding-left: 20px;
  color: var(--color-text-secondary);
}

.changelog-sections li + li {
  margin-top: var(--space-1);
}

.changelog-list time {
  color: var(--color-text-muted);
  font-size: var(--font-sm);
}

.changelog-list h2,
.changelog-list p {
  margin: 0;
}

.changelog-list h2 {
  font-size: 18px;
}

.trial-header {
  max-width: 840px;
}

.trial-tool-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-8);
}

.trial-tool-card {
  min-height: 132px;
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  text-align: left;
}

.trial-tool-card > span:last-child {
  min-width: 0;
}

.trial-tool-card strong,
.trial-tool-card small {
  display: block;
}

.trial-tool-card small {
  margin-top: 5px;
  color: var(--color-text-secondary);
  line-height: 1.45;
}

.trial-tool-card.active {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.12);
}

.trial-workbench {
  margin-top: var(--space-6);
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.trial-workbench-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-5);
  margin-bottom: var(--space-5);
}

.trial-workbench-heading p {
  margin: var(--space-2) 0 0;
}

.status-badge,
.local-only-badge {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 9px;
  border: 1px solid #bfd3f2;
  border-radius: 999px;
  color: #315a98;
  background: var(--color-primary-soft);
  font-size: var(--font-xs);
  font-weight: 700;
}

.local-only-badge {
  border-color: #b8ddc8;
  color: var(--color-success);
  background: var(--color-success-soft);
}

.trial-quiz-setup,
.trial-image-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr)) auto;
  align-items: end;
  gap: var(--space-3);
}

.trial-quiz-setup label,
.trial-image-fields label,
.trial-large-field {
  display: grid;
  gap: var(--space-2);
  color: var(--color-text-secondary);
  font-size: var(--font-sm);
  font-weight: 600;
}

.trial-quiz-meta {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  color: var(--color-text-secondary);
}

.trial-quiz-instruction {
  margin: var(--space-6) 0 var(--space-2);
  color: var(--color-text-secondary);
  text-align: center;
}

.trial-quiz-prompt {
  display: block;
  min-height: 76px;
  overflow-wrap: anywhere;
  font-size: 32px;
  text-align: center;
}

.trial-answer-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.trial-message {
  min-height: 24px;
  margin: var(--space-3) 0 0;
  color: var(--color-text-secondary);
}

.trial-message.is-error {
  color: var(--color-error);
}

.trial-message.is-success {
  color: var(--color-success);
}

.trial-quiz-run > #trialQuizNextBtn {
  margin-top: var(--space-3);
}

.trial-summary {
  padding: var(--space-6);
  border-radius: var(--radius-control);
  background: var(--color-primary-soft);
}

.trial-summary h3,
.trial-summary p {
  margin: 0;
}

.trial-summary > strong {
  display: block;
  margin: var(--space-3) 0;
  font-size: 28px;
}

.trial-large-field textarea {
  min-height: 240px;
}

.trial-stat-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--space-3);
  margin: var(--space-5) 0 0;
}

.trial-stat-grid > div {
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  background: var(--color-surface-subtle);
}

.trial-stat-grid dt {
  color: var(--color-text-secondary);
  font-size: var(--font-sm);
}

.trial-stat-grid dd {
  margin: var(--space-2) 0 0;
  color: var(--color-text);
  font-size: 20px;
  font-weight: 700;
}

.trial-json-output {
  max-height: 420px;
  margin: var(--space-4) 0 0;
  overflow: auto;
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  color: var(--color-text);
  background: var(--color-surface-subtle);
  font: 14px/1.6 Consolas, "Courier New", monospace;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.trial-image-result {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: var(--space-5);
  align-items: center;
  margin-top: var(--space-5);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border);
}

.trial-image-result img {
  width: 100%;
  max-height: 360px;
  object-fit: contain;
  background: var(--color-surface-subtle);
}

.trial-image-result p {
  color: var(--color-text-secondary);
}

.trial-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  margin-top: var(--space-8);
  padding: var(--space-6) 0;
  border-top: 1px solid var(--color-border);
}

.trial-footer p,
.trial-footer .public-actions {
  margin: 0;
}

.module-picker,
.project-picker,
.tools-panel,
.share-viewer,
.admin-panel {
  width: min(var(--page-max), calc(100% - 40px));
  min-height: auto;
  margin: 0 auto;
  padding: 48px 0 64px;
}

.module-picker,
.project-picker {
  display: grid;
  align-content: start;
  gap: var(--space-8);
}

.module-picker.hidden,
.project-picker.hidden {
  display: none;
}

.project-picker {
  width: min(860px, calc(100% - 40px));
}

.project-brand,
.module-picker .project-brand {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  align-items: center;
  justify-items: start;
  gap: var(--space-5);
  text-align: left;
}

.project-brand img,
.module-picker .project-brand img {
  width: 72px;
  height: 72px;
  display: block;
  object-fit: contain;
  border-radius: var(--radius-card);
  filter: none;
}

.project-brand h1,
.module-picker .project-brand h1,
.tools-header h1,
.share-viewer h1 {
  margin: 2px 0 4px;
  color: var(--color-text);
  font-size: clamp(26px, 3vw, 36px);
  text-shadow: none;
}

.section-kicker {
  margin: 0 0 4px;
  color: var(--color-primary);
  font-size: var(--font-sm);
  font-weight: 700;
  letter-spacing: 0;
  text-transform: none;
}

#moduleMembershipStatus,
.tools-header p:last-child {
  color: var(--color-text-muted);
}

.module-access-message {
  color: var(--color-warning);
}

.module-grid,
.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.module-card,
.project-card {
  position: relative;
  min-height: 150px;
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  color: var(--color-text);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
  transition: border-color var(--duration-normal) ease, box-shadow var(--duration-normal) ease, transform var(--duration-normal) ease;
}

.module-card {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  align-items: center;
  gap: var(--space-4);
  text-align: left;
}

.project-card {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  place-items: center start;
  align-content: center;
  gap: var(--space-4);
  text-align: left;
}

.project-card::before,
.project-card::after {
  content: none;
}

.module-card:hover,
.module-card:focus-visible,
.project-card:hover,
.project-card:focus-visible {
  transform: translateY(-1px);
  border-color: #9ab8e8;
  background: var(--color-surface);
  box-shadow: 0 10px 28px rgba(37, 99, 235, 0.1);
}

.module-card strong,
.project-card strong {
  color: var(--color-text);
  font-size: 21px;
}

.module-card small {
  color: var(--color-text-muted);
}

.module-card em {
  top: 12px;
  right: 12px;
  padding: 3px 8px;
  border: 1px solid #bcd0ee;
  border-radius: 999px;
  color: #315a98;
  background: var(--color-primary-soft);
}

.module-card em.active {
  border-color: #a7d7bd;
  color: var(--color-success);
  background: var(--color-success-soft);
}

.dashboard-header,
.dashboard-section-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-5);
}

.dashboard-header h1,
.dashboard-section-heading h2,
.dashboard-section-heading p,
.dashboard-panel > p {
  margin: 0;
}

.dashboard-header > div > p:last-child,
.dashboard-section-heading p,
.dashboard-panel > p {
  color: var(--color-text-secondary);
}

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

.dashboard-section-heading {
  margin-bottom: var(--space-4);
}

.dashboard-section-heading h2 {
  font-size: var(--font-lg);
}

.dashboard-section-heading p {
  margin-top: 3px;
  font-size: var(--font-sm);
}

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

.dashboard-entry-grid .module-card {
  min-height: 138px;
}

.dashboard-language-index {
  flex: 0 0 auto;
}

.dashboard-metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
}

.dashboard-metric {
  min-width: 0;
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.dashboard-metric > span,
.dashboard-metric > small {
  display: block;
  color: var(--color-text-muted);
  font-size: var(--font-sm);
}

.dashboard-metric > strong {
  display: block;
  margin: 8px 0 4px;
  overflow-wrap: anywhere;
  font-size: 18px;
}

.dashboard-metric b {
  font-size: 24px;
}

.dashboard-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-8);
}

.dashboard-panel {
  min-width: 0;
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border);
}

.dashboard-columns-secondary {
  padding-top: var(--space-2);
}

.dashboard-goal-list,
.dashboard-service-list {
  display: grid;
  gap: 0;
  margin: 0;
}

.dashboard-goal-list > div,
.dashboard-service-list > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 46px;
  border-bottom: 1px solid var(--color-border);
}

.dashboard-goal-list span,
.dashboard-service-list dt {
  color: var(--color-text-secondary);
}

.dashboard-service-list dd {
  margin: 0;
  font-weight: 700;
}

.dashboard-service-list dd.is-online {
  color: var(--color-success);
}

.dashboard-service-list dd.is-warning {
  color: var(--color-warning);
}

.dashboard-service-list dd.is-offline {
  color: var(--color-error);
}

.dashboard-sync-actions {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.dashboard-sync-actions .action-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.dashboard-sync-actions button {
  min-height: 40px;
}

.dashboard-sync-actions p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.dashboard-resume {
  margin-top: var(--space-5);
  padding: var(--space-4);
  border: 1px solid #bfd3f2;
  border-radius: var(--radius-control);
  background: var(--color-primary-soft);
}

.dashboard-resume h3,
.dashboard-tool-shelf h3 {
  margin: 0 0 var(--space-2);
  font-size: var(--font-sm);
}

.dashboard-tool-shelf + .dashboard-tool-shelf {
  margin-top: var(--space-4);
}

.dashboard-tool-shelf > div {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.dashboard-tool-link {
  min-height: 38px;
  padding: 0 12px;
  border-color: #bfd3f2;
  color: var(--color-primary-hover);
  background: var(--color-primary-soft);
}

.dashboard-empty {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--font-sm);
}

.module-icon,
.project-mark {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border: 1px solid #c9d8f0;
  border-radius: 10px;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  font-size: 17px;
  font-weight: 700;
}

.module-icon svg {
  width: 24px;
  height: 24px;
}

.picker-back {
  justify-self: start;
}

.project-app {
  width: min(var(--content-max), calc(100% - 40px));
  margin: 0 auto;
  padding: 36px 0 64px;
}

.topbar {
  padding: 0 0 20px;
  border-bottom: 1px solid var(--color-border);
}

.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  object-fit: contain;
  filter: none;
  box-shadow: none;
}

.brand h1 {
  color: var(--color-text);
  font-size: 19px;
}

.brand p,
.project-context {
  color: var(--color-text-muted);
}

.project-app .back-project-button {
  color: var(--color-text-secondary);
  background: var(--color-surface);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.status {
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: none;
}

.status span {
  width: 10px;
  height: 10px;
  background: var(--color-warning);
}

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

.panel,
.quiz-card,
.result-panel,
.share-viewer-panel,
.tool-workbench,
.admin-editor-section {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  color: var(--color-text);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
  backdrop-filter: none;
}

.auth-panel {
  width: min(520px, 100%);
  margin: 36px auto 0;
  padding: 28px;
}

.auth-logo {
  width: 56px;
  height: 56px;
  display: block;
  margin-bottom: var(--space-5);
  object-fit: contain;
  border-radius: 10px;
}

.auth-tabs,
.admin-tabs,
.scope-tabs,
.tabs {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  background: var(--color-surface-subtle);
  box-shadow: none;
}

.auth-tabs button,
.admin-tabs button,
.scope-tabs button,
.tabs button {
  border-color: transparent;
  color: var(--color-text-muted);
  background: transparent;
}

.auth-tabs button.active,
.admin-tabs button.active,
.scope-tabs button.active,
.tabs button.active {
  border-color: var(--color-border);
  color: var(--color-primary);
  background: var(--color-surface);
  box-shadow: 0 1px 3px rgba(16, 24, 40, 0.08);
}

.auth-field {
  display: grid;
  gap: 6px;
}

.login-form,
.stack-form {
  gap: var(--space-3);
}

.workspace {
  margin-top: var(--space-5);
}

.stats-grid div,
.achievement-overview,
.study-metrics,
.round-summary-grid div {
  border-color: var(--color-border);
  color: var(--color-text);
  background: var(--color-surface-subtle);
}

.stats-grid strong,
.word-display,
.word-display.dictation-display,
.word-primary {
  color: var(--color-text);
  text-shadow: none;
}

.result-panel:not(.hidden):not(.grading),
.result-panel.ai-review:not(.hidden):not(.grading) {
  animation: none;
  opacity: 1;
  max-height: none;
  overflow: visible;
}

.word-display {
  min-height: 180px;
}

.word-reading {
  color: var(--color-primary);
  text-shadow: none;
}

.chips span {
  border-color: #c9d8f0;
  color: #315a98;
  background: var(--color-primary-soft);
}

.wrong-item,
.achievement-item,
.study-history-row,
.admin-user-card,
.admin-login-card,
.payment-order,
.purchase-summary,
.tool-config-box,
.temporary-result,
.share-output,
.file-result {
  border-color: var(--color-border);
  border-radius: var(--radius-control);
  color: var(--color-text);
  background: var(--color-surface-subtle);
  box-shadow: none;
}

.project-app .secondary-row button,
.project-app .action-row button:not(.primary):not(.danger-button),
.project-app .word-quality-hint,
.project-app .study-heading .meta-line,
.project-app .achievement-head .meta-line {
  color: var(--color-text-secondary);
}

.project-app .word-quality-hint.has-warning {
  color: #7b4b0a;
}

.project-app .achievement-head > strong,
.project-app .study-history-facts .study-history-accuracy {
  color: var(--color-primary-strong);
}

.project-app #aiSuggestLanguage {
  color: var(--color-primary-strong);
}

.project-app .achievement-tier {
  color: var(--color-text-secondary) !important;
}

.project-app .achievement-item.unlocked .achievement-tier,
.project-app .achievement-item.unlocked .achievement-status {
  color: #166534 !important;
}

.project-app button:disabled,
.project-app .secondary-row button:disabled,
.project-app .action-row button:disabled {
  color: var(--color-text-disabled);
  background: #e2e8f0;
  opacity: 1;
}

.wrong-item p,
.wrong-rejudge-status {
  color: var(--color-text-secondary);
}

.wrong-rejudge-status {
  display: block;
  margin-top: 6px;
  font-size: var(--font-xs);
  line-height: 1.5;
}

.wrong-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 160px;
  align-items: start;
  gap: var(--space-4);
}

.wrong-item-copy {
  min-width: 0;
}

.wrong-item-actions {
  display: grid;
  grid-template-columns: 1fr;
  min-width: 0;
  align-items: stretch;
  gap: var(--space-2);
}

.wrong-item-actions .wrong-rejudge-button,
.wrong-item-actions .wrong-remove-button {
  width: 100%;
}

.wrong-item-actions .wrong-remove-button {
  color: var(--color-error);
}

.wrong-rejudge-form {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
  scroll-margin-top: calc(80px + env(safe-area-inset-top));
}

.wrong-rejudge-form label {
  display: grid;
  gap: 6px;
  color: var(--color-text-secondary);
}

.wrong-rejudge-controls {
  display: flex;
  gap: var(--space-2);
}

.wrong-rejudge-controls button {
  min-width: 112px;
  scroll-margin-top: calc(80px + env(safe-area-inset-top));
}

.result-gloss {
  white-space: pre-line;
}

.achievement-item.unlocked {
  border-color: #abd6bd;
  background: var(--color-success-soft);
}

.achievement-item.unlocked .achievement-tier {
  color: var(--color-success) !important;
}

.result-title.ok,
.account-state-good {
  color: var(--color-success);
}

.result-title.bad,
.error,
.wrong-item strong,
.account-state-bad,
.limit-exceeded {
  color: var(--color-error);
}

.answer-validation,
.wrong-action-message,
.load-recovery,
.plan-loading,
.admin-empty-state,
.tool-empty,
.achievement-empty,
.study-empty {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  color: var(--color-text-muted);
  background: var(--color-surface-subtle);
}

.answer-validation:not(.hidden),
.wrong-action-message:not(.hidden) {
  color: var(--color-error);
  background: var(--color-error-soft);
  border-color: #efb2b2;
}

.membership-warning,
.danger-note {
  border-color: #edcf8c;
  color: #7b4b0a;
  background: var(--color-warning-soft);
}

.danger-zone,
.admin-danger-section {
  border-color: #efb2b2;
  color: #7f1d1d;
  background: var(--color-error-soft);
}

.tools-header,
.admin-header {
  border-color: var(--color-border);
}

.tools-dashboard {
  padding-top: var(--space-6);
}

.tool-search input {
  min-height: 48px;
}

.tool-search > span,
.tool-form label > span,
#toolWorkbenchDescription {
  color: var(--color-text-secondary);
}

#toolWorkbenchCategory {
  color: var(--color-primary);
  font-weight: 600;
}

.tool-category-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--space-3);
}

.tool-category-card,
.tool-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  color: var(--color-text);
  background: var(--color-surface);
  box-shadow: none;
}

.tool-category-card {
  min-height: 136px;
}

.tool-category-card:hover,
.tool-category-card.active {
  border-color: #9ab8e8;
  color: var(--color-text);
  background: var(--color-primary-soft);
}

.tool-category-card strong,
.tool-card strong {
  color: var(--color-text);
}

.tool-category-card small,
.tool-category-card em,
.tool-card small,
.tool-open em {
  color: var(--color-text-muted);
}

.tool-category-mark,
.tool-open > span {
  border-color: #c9d8f0;
  border-radius: var(--radius-control);
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

.tool-open {
  color: var(--color-text);
  background: transparent;
}

.tool-open:hover {
  background: transparent;
}

.tool-card:hover {
  border-color: #9ab8e8;
  box-shadow: 0 8px 22px rgba(37, 99, 235, 0.08);
}

.tool-card-favorite {
  color: var(--color-text-muted);
  background: transparent;
}

.tool-card-favorite:hover {
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

.tool-card-favorite.active {
  color: var(--color-primary);
}

.tool-card-favorite.active .bookmark-icon {
  fill: currentColor;
}

.tool-chip-list button {
  color: #344054;
  background: var(--color-surface);
}

.tool-workbench > header {
  border-color: var(--color-border);
}

.file-drop {
  border-color: var(--color-border-strong);
  color: var(--color-text-muted);
  background: var(--color-surface-subtle);
}

.file-drop:hover,
.file-drop:focus-within {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
}

.workflow-launcher {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  margin: var(--space-5) 0;
  padding: var(--space-5);
  border: 1px solid #b9cceb;
  border-radius: var(--radius-card);
  background: #f4f8ff;
  box-shadow: var(--shadow-card);
}

.workflow-launcher h2,
.workflow-launcher p,
.workflow-header h2,
.workflow-header p,
.workflow-section-heading h3,
.workflow-section-heading p {
  margin: 0;
}

.workflow-launcher > div,
.workflow-header > div,
.workflow-editor,
.workflow-title-row label {
  min-width: 0;
}

.workflow-workspace {
  padding-top: var(--space-5);
}

.workflow-header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-4);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--color-border);
}

.workflow-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  align-items: start;
  gap: var(--space-5);
  padding-top: var(--space-5);
}

.workflow-sidebar,
.workflow-editor {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.workflow-sidebar {
  position: sticky;
  top: 84px;
  display: grid;
  gap: var(--space-4);
  padding: var(--space-4);
}

.workflow-sidebar-heading,
.workflow-section-heading,
.workflow-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.workflow-sidebar-heading h3,
.workflow-template-box h3 {
  margin: 0;
  font-size: var(--font-md);
}

.workflow-list,
.workflow-template-box > div {
  display: grid;
  gap: var(--space-2);
}

.workflow-list button,
.workflow-template-box button {
  display: grid;
  justify-items: start;
  gap: 3px;
  width: 100%;
  min-height: 52px;
  padding: 10px 12px;
  color: var(--color-text);
  text-align: left;
  background: var(--color-surface-subtle);
}

.workflow-list button.active {
  border-color: var(--color-primary);
  color: var(--color-primary-strong);
  background: var(--color-primary-soft);
}

.workflow-list small,
.workflow-template-box small,
.workflow-step-heading small,
.workflow-step-no-config,
.workflow-empty,
.workflow-editor-empty p {
  color: var(--color-text-muted);
}

.workflow-import-row,
.workflow-import-row button {
  width: 100%;
}

.workflow-editor {
  padding: var(--space-5);
}

.workflow-editor-empty {
  padding: 64px var(--space-5);
  text-align: center;
}

.workflow-title-row {
  align-items: end;
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.workflow-title-row > label {
  display: grid;
  flex: 1 1 320px;
  gap: 6px;
  color: var(--color-text-secondary);
}

.workflow-title-row .action-row {
  justify-content: flex-end;
}

.workflow-title-row .danger,
.workflow-step-actions button:last-child {
  color: var(--color-error);
}

.workflow-steps,
.workflow-runner {
  margin-top: var(--space-5);
}

.workflow-section-heading > div:last-child {
  display: flex;
  gap: var(--space-2);
}

.workflow-step-list,
#workflowStepList {
  display: grid;
  gap: var(--space-3);
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
}

.workflow-step {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  background: var(--color-surface-subtle);
}

.workflow-step.dragging {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.14);
}

.workflow-step.disabled {
  background: #eef2f6;
}

.workflow-step-heading {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-3);
}

.workflow-step-number {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: 50%;
  color: var(--color-primary-strong);
  background: var(--color-primary-soft);
  font-weight: 700;
}

.workflow-step-heading > div {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.workflow-step-heading > label,
.workflow-batch-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text-secondary);
}

.workflow-step-config {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.workflow-step-config label,
.workflow-text-input,
.workflow-result {
  display: grid;
  gap: 6px;
  color: var(--color-text-secondary);
}

.workflow-step-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.workflow-runner {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: #fbfcfe;
}

.workflow-text-input textarea,
.workflow-result textarea {
  min-height: 140px;
}

.workflow-step-statuses,
.workflow-item-results {
  display: grid;
  gap: var(--space-2);
}

.workflow-step-statuses > div,
.workflow-item-results > p {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px var(--space-3);
  margin: 0;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  color: var(--color-text-secondary);
  background: var(--color-surface);
}

.workflow-step-statuses small {
  grid-column: 1 / -1;
  color: var(--color-error);
}

.workflow-step-statuses [data-status="success"] strong,
.workflow-item-results [data-status="success"] span {
  color: var(--color-success);
}

.workflow-step-statuses [data-status="failed"] strong,
.workflow-step-statuses [data-status="cancelled"] strong,
.workflow-item-results [data-status="failed"] span {
  color: var(--color-error);
}

.workflow-result-preview img {
  display: block;
  max-width: min(100%, 720px);
  max-height: 460px;
  object-fit: contain;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
}

#workflowRunState[data-status="success"] {
  color: var(--color-success);
  background: var(--color-success-soft);
}

#workflowRunState[data-status="failed"],
#workflowRunState[data-status="cancelled"] {
  color: var(--color-error);
  background: var(--color-error-soft);
}

@media (max-width: 900px) {
  .workflow-layout {
    grid-template-columns: 1fr;
  }

  .workflow-sidebar {
    position: static;
  }
}

@media (max-width: 640px) {
  .workflow-launcher,
  .workflow-header,
  .workflow-title-row,
  .workflow-section-heading {
    display: grid;
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .workflow-header > .status-badge {
    justify-self: start;
  }

  .workflow-layout {
    gap: var(--space-3);
  }

  .workflow-editor,
  .workflow-sidebar,
  .workflow-runner,
  .workflow-step {
    padding: var(--space-3);
  }

  .workflow-title-row .action-row,
  .workflow-step-config,
  .workflow-section-heading > div:last-child {
    display: grid;
    grid-template-columns: 1fr;
  }

  .workflow-step-heading {
    grid-template-columns: 34px minmax(0, 1fr);
  }

  .workflow-step-heading > label {
    grid-column: 1 / -1;
  }

  .workflow-step-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .workflow-step-actions button,
  .workflow-launcher button,
  .workflow-section-heading button,
  .workflow-section-heading select {
    width: 100%;
    min-height: 44px;
  }
}

.modal-layer {
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: none;
  animation-duration: var(--duration-normal);
}

.modal-panel {
  width: min(640px, 100%);
  padding: 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  color: var(--color-text);
  background: var(--color-surface);
  box-shadow: var(--shadow-dialog);
  animation-duration: var(--duration-normal);
}

.rejudge-result-modal {
  z-index: 13000;
}

.rejudge-result-panel {
  width: min(460px, 100%);
  border-top: 4px solid var(--color-primary);
}

.rejudge-result-panel[data-tone="success"] {
  border-top-color: var(--color-success);
}

.rejudge-result-panel[data-tone="warning"] {
  border-top-color: var(--color-warning);
}

.rejudge-result-panel[data-tone="error"] {
  border-top-color: var(--color-error);
}

.rejudge-result-message {
  margin: 14px 0 22px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  overflow-wrap: anywhere;
  white-space: pre-line;
}

.rejudge-result-actions {
  justify-content: flex-end;
}

.rejudge-result-actions button {
  min-width: 112px;
}

.membership-panel {
  width: min(920px, 100%);
}

.membership-goal-field {
  border-color: var(--color-border);
  background: var(--color-surface-subtle);
}

.membership-goal-field legend,
.membership-step-title {
  color: var(--color-text);
}

.membership-goal-option {
  border-color: var(--color-border);
  border-radius: var(--radius-control);
  color: var(--color-text);
  background: var(--color-surface);
  box-shadow: none;
}

.membership-goal-option small,
.membership-goal-hint {
  color: var(--color-text-muted);
}

.membership-goal-option:hover,
.membership-goal-option.selected {
  border-color: #8eafe3;
  background: var(--color-primary-soft);
}

.membership-goal-option.selected {
  box-shadow: inset 0 0 0 1px var(--color-primary);
}

.modal-close {
  width: 40px;
  min-height: 40px;
  display: grid;
  place-items: center;
  padding: 0;
  border-color: transparent;
  color: var(--color-text-muted);
  background: transparent;
}

.modal-close:hover {
  color: var(--color-text);
  background: var(--color-surface-subtle);
}

.plan-grid {
  gap: var(--space-3);
}

.plan-option {
  border-color: var(--color-border);
  border-radius: var(--radius-card);
  color: var(--color-text);
  background: var(--color-surface);
  box-shadow: none;
}

.plan-option:hover,
.plan-option.selected {
  border-color: #8eafe3;
  background: var(--color-primary-soft);
}

.payment-method-list label {
  border-color: var(--color-border);
  color: var(--color-text);
  background: var(--color-surface);
}

.payment-method-list label:has(input:checked) {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
}

.payment-qr-wrap {
  border-color: var(--color-border);
  background: var(--color-surface);
}

.admin-panel {
  width: min(var(--page-max), calc(100% - 40px));
}

.admin-toolbar,
.admin-user-actions,
.admin-danger-actions,
.admin-entitlement-actions,
.admin-secret-actions {
  gap: var(--space-2);
}

.admin-user-list {
  gap: var(--space-3);
}

.admin-user-card,
.admin-login-card {
  color: var(--color-text);
  background: var(--color-surface);
}

.admin-user-card p,
.admin-user-card h3,
.admin-log-card p,
.admin-log-card strong,
.admin-log-card time,
.admin-request-status,
.admin-request-status strong,
.admin-current-memberships > article,
.admin-current-memberships > article strong,
.admin-editor-section h3,
.admin-secret-result code {
  color: var(--color-text);
}

.admin-user-id,
.admin-last-login,
.admin-user-facts span,
.admin-field-name,
.admin-request-status span,
.admin-request-status small,
.admin-login-agent,
.admin-editor-subtitle,
.admin-date-help,
.admin-secret-field > label,
.admin-secret-result span,
.admin-current-memberships > article small {
  color: var(--color-text-muted);
}

.admin-user-facts strong,
.admin-user-security strong,
.admin-login-location,
.admin-current-memberships > article span {
  color: var(--color-text-secondary);
}

.admin-login-card .login-success {
  color: var(--color-success);
}

.admin-login-card .login-failed,
.account-state-bad {
  color: var(--color-error);
}

.account-state-good {
  color: var(--color-success);
}

.admin-current-memberships > article,
.admin-secret-result {
  border-color: var(--color-border);
  background: var(--color-surface-subtle);
}

.admin-request-status,
.achievement-status,
.achievement-tier,
.room-sync-status {
  border-radius: 999px;
}

.admin-current-memberships span,
.admin-request-status,
.achievement-status,
.achievement-tier {
  color: #315a98;
  background: var(--color-primary-soft);
}

.admin-current-memberships > article span {
  padding: 2px 7px;
  border-radius: 999px;
  color: #315a98;
  background: var(--color-primary-soft);
}

.admin-editor {
  width: min(920px, 100%);
}

.account-details dt,
.account-details dd,
.admin-user-facts dt,
.admin-user-facts dd {
  border-color: var(--color-border);
}

.secret-value,
code {
  color: #344054;
  background: #eef2f6;
}

.achievement-toast {
  border-color: #abd6bd;
  color: var(--color-text);
  background: var(--color-success-soft);
  box-shadow: var(--shadow-card);
}

progress {
  accent-color: var(--color-primary);
}

.study-day-bar {
  background: var(--color-primary);
  box-shadow: none;
}

.study-day-track {
  background: #e4e7ec;
}

.random-result {
  color: var(--color-text);
  background: var(--color-surface-subtle);
}

.dashboard-update-link {
  width: fit-content;
  margin-top: var(--space-3);
  padding-inline: 0;
  color: var(--color-primary);
}

.feedback-panel {
  width: min(860px, 100%);
}

.feedback-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-1);
  margin: var(--space-5) 0;
  padding: var(--space-1);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  background: var(--color-surface-subtle);
}

.feedback-tabs button {
  border-color: transparent;
  background: transparent;
}

.feedback-tabs button.active {
  border-color: var(--color-border);
  color: var(--color-primary);
  background: var(--color-surface);
  box-shadow: 0 1px 3px rgba(16, 24, 40, 0.08);
}

.feedback-view {
  display: none;
}

.feedback-view.active {
  display: block;
}

.feedback-field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.feedback-form textarea,
.admin-feedback-note textarea {
  width: 100%;
  min-height: 130px;
  resize: vertical;
}

.feedback-form .primary {
  min-height: 44px;
}

.feedback-context-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-5);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  color: var(--color-text-secondary);
  background: var(--color-surface-subtle);
}

.feedback-context-options legend {
  padding-inline: var(--space-2);
  color: var(--color-text);
  font-weight: 700;
}

.feedback-context-options label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.feedback-privacy-note,
.feedback-view-heading p,
.feedback-card-meta,
.admin-feedback-meta,
.admin-feedback-author {
  color: var(--color-text-secondary);
  font-size: var(--font-sm);
}

.feedback-view-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.feedback-view-heading h3,
.feedback-view-heading p {
  margin: 0;
}

.feedback-list {
  display: grid;
  gap: var(--space-3);
  max-height: min(58vh, 620px);
  overflow-y: auto;
}

.feedback-card,
.admin-feedback-card {
  min-width: 0;
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  color: var(--color-text);
  background: var(--color-surface);
}

.feedback-card header,
.admin-feedback-card > header,
.feedback-vote-card {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
}

.feedback-card h3,
.feedback-card p,
.feedback-card footer,
.admin-feedback-card h3,
.admin-feedback-card p {
  margin: 0;
}

.feedback-card-content,
.admin-feedback-content {
  margin-top: var(--space-3) !important;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.feedback-card-meta,
.admin-feedback-meta {
  margin-top: var(--space-2) !important;
  overflow-wrap: anywhere;
}

.feedback-card footer {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  margin-top: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--font-xs);
}

.feedback-type {
  color: #1e4f9e;
  font-size: var(--font-xs);
  font-weight: 700;
}

.feedback-status[data-status="accepted"],
.feedback-status[data-status="completed"] {
  color: #166534;
  background: var(--color-success-soft);
}

.feedback-status[data-status="rejected"] {
  color: #991b1b;
  background: var(--color-error-soft);
}

.feedback-vote-card {
  align-items: center;
}

.feedback-vote-card p {
  margin-top: var(--space-2);
  color: var(--color-text-secondary);
}

.feedback-vote-card button {
  flex: 0 0 auto;
}

.feedback-vote-card button.active {
  border-color: #8eafe3;
  color: #1e4f9e;
  background: var(--color-primary-soft);
}

.admin-tabs {
  overflow-x: auto;
}

.admin-tabs button {
  min-width: 116px;
}

.admin-feedback-toolbar {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(150px, 220px) minmax(150px, 220px);
  align-items: end;
}

.admin-feedback-toolbar label {
  display: grid;
  gap: 7px;
  color: var(--color-text-secondary);
  font-size: var(--font-sm);
}

.admin-feedback-card {
  box-shadow: var(--shadow-card);
}

.admin-feedback-summary {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-2);
}

.admin-feedback-summary span {
  padding: 3px 8px;
  border-radius: 999px;
  color: #1e4f9e;
  background: var(--color-primary-soft);
  font-size: var(--font-xs);
  font-weight: 700;
}

.admin-feedback-controls {
  display: grid;
  grid-template-columns: minmax(150px, 210px) minmax(260px, 1fr) auto;
  align-items: end;
  gap: var(--space-3);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.admin-feedback-controls label,
.admin-feedback-merge label {
  display: grid;
  gap: 6px;
  color: var(--color-text-secondary);
  font-size: var(--font-sm);
}

.admin-feedback-note textarea {
  min-height: 84px;
}

.admin-feedback-merge {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto auto;
  align-items: end;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

@media (max-width: 1024px) {
  .site-nav {
    gap: var(--space-3);
    padding-right: 20px;
    padding-left: 20px;
  }

  .site-nav-links a {
    padding: 0 8px;
  }

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

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

  .dashboard-entry-grid,
  .dashboard-metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .public-tool-category-grid,
  .trial-tool-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

.plan-option small,
.payment-order dt,
.payment-order p,
.payment-review-note,
.purchase-summary,
.account-details dt,
.round-summary-grid span {
  color: var(--color-text-muted);
}

.plan-option strong,
.plan-option span,
.payment-order dd,
.account-details dd,
.round-summary-grid strong {
  color: var(--color-text);
}

.field-disabled {
  opacity: 1;
}

.field-disabled input,
.field-disabled select {
  color: var(--color-text-disabled);
  background: #e2e8f0;
}

@media (max-width: 900px) {
  .admin-user-card {
    grid-template-columns: 1fr;
  }

  .admin-user-card .admin-user-actions {
    justify-content: flex-start;
  }

  .admin-toolbar {
    flex-wrap: wrap;
  }
}

@media (max-width: 760px) {
  html {
    scroll-padding-top: calc(184px + env(safe-area-inset-top));
  }

  .site-nav {
    grid-template-columns: minmax(0, 1fr) auto;
    padding-bottom: 8px;
  }

  .site-nav-links {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-content: space-between;
    gap: 0;
    border-top: 1px solid var(--color-border);
    padding-top: 6px;
  }

  .site-nav-links a {
    justify-content: center;
    flex: 1;
    min-width: 0;
    padding: 0 5px;
    font-size: 13px;
  }

  .site-nav-actions {
    justify-self: end;
  }

  .workspace > .tabs {
    position: sticky;
    top: calc(116px + env(safe-area-inset-top));
    z-index: 700;
    padding: 4px;
    background: var(--color-surface);
    box-shadow: 0 1px 0 var(--color-border);
  }

  .module-picker,
  .project-picker,
  .tools-panel,
  .share-viewer,
  .admin-panel,
  .project-app {
    width: min(100% - 28px, var(--page-max));
    padding-top: 28px;
  }

  .module-grid,
  .project-grid,
  .plan-grid {
    grid-template-columns: 1fr;
  }

  .dashboard-entry-grid,
  .dashboard-metric-grid,
  .dashboard-columns {
    grid-template-columns: 1fr;
  }

  .dashboard-header,
  .dashboard-section-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .dashboard-header > button,
  .dashboard-language-index {
    width: 100%;
  }

  .public-intro {
    min-height: 350px;
    padding: 48px 20px;
  }

  .public-intro::after {
    right: -52px;
    width: 220px;
    height: 220px;
    opacity: 0.07;
  }

  .public-intro-copy {
    width: 100%;
  }

  .public-intro h1 {
    font-size: 32px;
  }

  .public-lead {
    font-size: var(--font-md);
  }

  .public-section,
  .public-page,
  .trial-page {
    width: min(100% - 28px, var(--page-max));
  }

  .public-section {
    padding-top: 48px;
  }

  .public-card-grid-two,
  .public-card-grid-three,
  .public-tool-category-grid,
  .trial-tool-grid,
  .trial-stat-grid,
  .trial-image-result,
  .trial-quiz-setup,
  .trial-image-fields {
    grid-template-columns: 1fr;
  }

  .public-privacy-band {
    grid-template-columns: 1fr;
    padding: 40px 20px;
  }

  .public-privacy-band > svg {
    display: none;
  }

  .changelog-list article {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }

  .trial-workbench {
    padding: var(--space-5);
  }

  .trial-workbench-heading,
  .trial-footer {
    align-items: stretch;
    flex-direction: column;
  }

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

  .trial-answer-form button,
  .trial-quiz-setup button,
  .trial-footer .public-actions,
  .trial-footer .public-actions > *,
  .public-actions > button {
    width: 100%;
  }

  .module-card,
  .project-card {
    min-height: 126px;
  }

  .tools-header,
  .admin-header,
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .tools-header > button,
  .admin-header > div:last-child,
  .topbar-actions {
    width: 100%;
  }

  .topbar-actions {
    justify-content: space-between;
  }

  .tool-category-grid,
  .tool-catalog {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .settings-grid,
  .ai-suggest-grid,
  .admin-membership-grid,
  .admin-date-grid,
  .admin-secret-control {
    grid-template-columns: 1fr;
  }

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

  .answer-form button {
    width: 100%;
  }

  .modal-panel {
    padding: 24px 18px;
  }
}

@media (max-width: 480px) {
  .site-brand span {
    font-size: 15px;
  }

  .site-brand img {
    width: 32px;
    height: 32px;
  }

  .site-nav-actions button {
    min-height: 38px;
    padding: 0 10px;
    font-size: 13px;
  }

  .account-badge {
    display: inline-block;
    max-width: 144px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .project-brand,
  .module-picker .project-brand {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: var(--space-4);
  }

  .project-brand img,
  .module-picker .project-brand img {
    width: 56px;
    height: 56px;
  }

  .module-card,
  .project-card {
    padding: var(--space-5);
  }

  .module-card strong,
  .project-card strong {
    font-size: 19px;
  }

  .tool-category-grid,
  .tool-catalog {
    grid-template-columns: 1fr;
  }

  .tool-category-card {
    min-height: 108px;
  }

  .action-row,
  .secondary-row,
  .account-secret-actions,
  .admin-danger-actions,
  .admin-entitlement-actions,
  .round-summary-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .action-row button,
  .secondary-row button {
    width: 100%;
  }

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

  .word-display {
    min-height: 150px;
  }

  .wrong-item {
    grid-template-columns: 1fr;
  }

  .wrong-item-actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
  }

  .wrong-item-actions strong {
    grid-column: 1 / -1;
  }

  .wrong-item-actions .wrong-rejudge-button,
  .wrong-item-actions .wrong-remove-button {
    min-height: 44px;
  }

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

  .wrong-rejudge-controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .wrong-rejudge-controls button {
    min-width: 0;
    width: 100%;
  }

  .auth-panel {
    margin-top: 20px;
    padding: 22px 18px;
  }

  .modal-layer {
    padding: max(10px, env(safe-area-inset-top)) 8px max(10px, env(safe-area-inset-bottom));
  }

  .modal-panel {
    max-height: calc(100dvh - 20px - env(safe-area-inset-top) - env(safe-area-inset-bottom));
  }

  .rejudge-result-actions button {
    width: 100%;
  }

  .site-brand-copy strong {
    font-size: 15px;
  }

  .site-brand-copy small {
    font-size: 10px;
  }

  .version-notice {
    top: auto;
    right: max(10px, env(safe-area-inset-right));
    bottom: max(10px, env(safe-area-inset-bottom));
    left: max(10px, env(safe-area-inset-left));
    width: auto;
    grid-template-columns: minmax(0, 1fr) 40px;
  }

  .version-notice .button-ghost {
    grid-column: 1 / -1;
    grid-row: 2;
    width: fit-content;
    padding-inline: 0;
  }

  .version-notice-close {
    grid-column: 2;
    grid-row: 1;
  }

  .changelog-list article {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .changelog-entry-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .changelog-sections,
  .feedback-field-grid,
  .admin-feedback-toolbar,
  .admin-feedback-controls,
  .admin-feedback-merge {
    grid-template-columns: 1fr;
  }

  .feedback-tabs {
    grid-template-columns: 1fr;
  }

  .feedback-card header,
  .admin-feedback-card > header,
  .feedback-vote-card,
  .feedback-view-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .feedback-vote-card button,
  .admin-feedback-controls button,
  .admin-feedback-merge button {
    width: 100%;
  }

  .admin-feedback-summary {
    justify-content: flex-start;
  }
}

@media (max-height: 520px) and (orientation: landscape) {
  .module-picker,
  .project-picker,
  .project-app,
  .tools-panel,
  .admin-panel {
    padding-top: 20px;
  }

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

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

  .entry-progress::after {
    transform: scaleX(1);
  }
}