:root {
  color-scheme: light;
  --ink: #173b4b;
  --ink-deep: #102e3c;
  --muted: #405e69;
  --ground: #e9f0ef;
  --surface: #f8fbf9;
  --surface-cool: #dce8e7;
  --line: #aac0c2;
  --line-strong: #718f96;
  --accent: #a33f2d;
  --accent-dark: #7e2f23;
  --accent-soft: #f4dfd8;
  --focus: #a33f2d;
  --error: #8b3024;
  --warning-ground: #fff0c9;
  --warning-ink: #513b0b;
  --radius: 2px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
}

body {
  margin: 0;
  min-width: 0;
  background: var(--ground);
  color: var(--ink-deep);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.5;
  caret-color: var(--accent);
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
a,
input,
select,
textarea {
  -webkit-tap-highlight-color: transparent;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

a {
  color: inherit;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
}

::selection {
  background: #bcd6d8;
  color: var(--ink-deep);
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

[hidden] {
  display: none !important;
}

svg {
  display: block;
  flex: 0 0 auto;
}

.shell {
  width: min(1184px, calc(100% - 48px));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  background: var(--surface);
  color: var(--ink-deep);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  --focus: #ffd273;
  background: var(--ink);
  color: #f4f8f6;
  border-bottom: 3px double #90b4b9;
}

.header-inner {
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 13px;
  min-width: 0;
}

.brand-mark {
  width: 32px;
  height: 32px;
  fill: none;
  stroke: #b7d5d6;
  stroke-width: 1.5;
  stroke-linecap: square;
}

.brand-name,
.brand-tagline {
  display: block;
}

.brand-name {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.015em;
}

.brand-tagline {
  margin-top: 2px;
  color: #c9dcdd;
  font-size: 13px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex: 0 0 auto;
}

#saved-count {
  margin: 0;
  color: #d9e7e6;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.button {
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 650;
  line-height: 1.25;
  text-align: center;
  transition: background-color 160ms ease-out, border-color 160ms ease-out, color 160ms ease-out;
}

.button svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: square;
}

.header-button {
  background: var(--surface);
  color: var(--ink-deep);
  border-color: var(--surface);
}

.header-button:hover:not(:disabled) {
  background: #cfe1e1;
  border-color: #cfe1e1;
}

.primary-button {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

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

.secondary-button {
  background: transparent;
  color: var(--ink-deep);
  border-color: var(--line-strong);
}

.secondary-button:hover:not(:disabled) {
  background: var(--surface-cool);
  border-color: var(--ink);
}

main {
  padding-block: 32px 64px;
}

.catalog-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 24px;
}

h1,
h2,
h3,
p {
  overflow-wrap: break-word;
}

h1 {
  margin: 0;
  font-size: 32px;
  line-height: 1.15;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

.catalog-summary {
  max-width: 68ch;
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
}

#result-count {
  flex: 0 0 auto;
  margin: 0 0 2px;
  padding-bottom: 4px;
  border-bottom: 3px double var(--line-strong);
  font-size: 15px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.status-message {
  margin-bottom: 20px;
  padding: 14px 16px;
  border: 1px solid currentColor;
  border-radius: var(--radius);
}

.status-message p {
  margin: 0 0 12px;
}

.storage-message {
  background: var(--warning-ground);
  color: var(--warning-ink);
}

.error-message,
.form-error-summary {
  background: #f8e3de;
  color: #6f261c;
}

.filters {
  display: grid;
  grid-template-columns: minmax(220px, 1.5fr) minmax(180px, 0.85fr) auto auto;
  align-items: end;
  gap: 16px;
  padding-block: 18px;
  border-block: 1px solid var(--line);
}

.field {
  min-width: 0;
}

.field label,
.form-field label {
  display: block;
  margin-bottom: 6px;
  color: var(--ink-deep);
  font-size: 13px;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink-deep);
}

input,
select {
  min-height: 46px;
  padding: 10px 12px;
}

textarea {
  min-height: 108px;
  padding: 11px 12px;
  line-height: 1.5;
  resize: vertical;
}

input::placeholder,
textarea::placeholder {
  color: #536f78;
  opacity: 1;
}

input:hover,
select:hover,
textarea:hover {
  border-color: var(--ink);
}

input[aria-invalid="true"],
select[aria-invalid="true"],
textarea[aria-invalid="true"] {
  border-color: var(--error);
  border-width: 2px;
}

.saved-filter-label {
  min-height: 46px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding-inline: 4px;
  font-size: 14px;
  font-weight: 650;
  white-space: nowrap;
  cursor: pointer;
}

.saved-filter-label input {
  width: 20px;
  height: 20px;
  min-height: 20px;
  margin: 0;
  padding: 0;
  accent-color: var(--accent);
}

.register {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  align-items: center;
  gap: 24px;
  margin-block: 18px 22px;
}

.register h2 {
  margin: 0;
  font-size: 13px;
  line-height: 1.3;
}

.register p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

#tool-register {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.register-item {
  min-width: 0;
  text-align: center;
  transition: opacity 180ms ease-out;
}

.register-number {
  display: block;
  margin-bottom: 3px;
  color: var(--muted);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.register-line {
  display: block;
  height: 12px;
  position: relative;
}

.register-line::before {
  content: "";
  position: absolute;
  top: 4px;
  right: 0;
  left: 0;
  border-top: 1px dashed var(--line-strong);
}

.register-item.is-visible .register-line::before {
  border-top: 2px solid var(--ink);
}

.register-item.is-saved .register-line::before {
  border-top: 3px double var(--accent);
}

.register-item.is-filtered {
  opacity: 0.42;
}

#loading-state {
  padding: 24px;
  border: 1px solid var(--line);
  background: var(--surface);
}

#loading-state p {
  margin: 0 0 18px;
  color: var(--muted);
}

.loading-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.loading-grid span {
  height: 112px;
  background: var(--surface-cool);
  border: 1px solid var(--line);
}

#tool-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: stretch;
  gap: 16px;
}

.tool-card {
  --card-padding: 22px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  padding: calc(var(--card-padding) + 2px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface);
}

.tool-card.is-saved {
  padding: var(--card-padding);
  border: 3px double var(--accent);
}

.tool-card h3 {
  margin: 0;
  font-size: 20px;
  line-height: 1.25;
  letter-spacing: -0.012em;
  text-wrap: balance;
}

.tool-category {
  margin: 6px 0 16px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

.tool-summary {
  margin: 0 0 16px;
  color: var(--ink-deep);
  font-size: 15px;
  line-height: 1.55;
}

.tool-best {
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.tool-best h4 {
  margin: 0 0 4px;
  font-size: 13px;
}

.tool-best p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.tool-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 16px 0;
  padding: 0;
  list-style: none;
}

.tool-tags li {
  padding: 3px 7px;
  border: 1px solid #b4cbcc;
  border-radius: var(--radius);
  background: var(--surface-cool);
  color: var(--ink-deep);
  font-size: 12px;
  line-height: 1.4;
}

.tool-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin: auto 0 18px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.tool-meta div {
  min-width: 0;
}

.tool-meta dt {
  color: var(--muted);
  font-size: 12px;
}

.tool-meta dd {
  margin: 2px 0 0;
  font-size: 14px;
  font-weight: 650;
}

.tool-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: 12px;
}

.save-button {
  width: 100%;
  background: transparent;
  color: var(--ink-deep);
  border-color: var(--ink);
}

.save-button:hover {
  background: var(--surface-cool);
}

.save-button[aria-pressed="true"] {
  background: var(--accent-soft);
  color: var(--accent-dark);
  border-color: var(--accent);
}

.visit-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 700;
}

.visit-link svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: square;
}

.visit-link:hover {
  color: var(--accent-dark);
}

#empty-state {
  padding: 32px 24px;
  border: 1px dashed var(--line-strong);
  background: var(--surface);
  text-align: center;
}

#empty-state h2 {
  margin: 0;
  font-size: 22px;
}

#empty-state p {
  max-width: 55ch;
  margin: 8px auto 20px;
  color: var(--muted);
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 48px;
  margin-top: 56px;
}

.support-grid h2 {
  margin: 0 0 10px;
  font-size: 24px;
  line-height: 1.25;
  letter-spacing: -0.015em;
}

.section-description {
  max-width: 65ch;
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 14px;
}

#suggestion-list > p {
  margin: 0;
  padding-block: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.suggestion-item {
  padding-block: 18px;
  border-top: 1px solid var(--line);
}

.suggestion-item:last-child {
  border-bottom: 1px solid var(--line);
}

.suggestion-item h3 {
  margin: 0 0 5px;
  font-size: 18px;
}

.suggestion-url {
  display: inline-block;
  max-width: 100%;
  margin-bottom: 10px;
  overflow-wrap: anywhere;
  font-size: 13px;
}

.suggestion-category,
.suggestion-notes {
  margin: 4px 0 0;
  font-size: 14px;
}

.suggestion-category {
  font-weight: 650;
}

.suggestion-notes {
  color: var(--muted);
  white-space: pre-wrap;
}

.faq-item {
  border-top: 1px solid var(--line);
}

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

.faq-trigger {
  width: 100%;
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 0;
  border: 0;
  background: transparent;
  color: var(--ink-deep);
  text-align: left;
  font-weight: 700;
}

.faq-trigger:hover {
  color: var(--accent-dark);
}

.faq-trigger svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  transition: transform 180ms ease-out;
}

.faq-trigger[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.faq-panel {
  padding: 6px 24px 18px 0;
}

.faq-panel p {
  max-width: 68ch;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.site-footer {
  padding-block: 24px 32px;
  border-top: 1px solid var(--line);
}

.site-footer p {
  max-width: 70ch;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

#suggestion-dialog {
  width: min(620px, calc(100% - 32px));
  max-height: calc(100dvh - 32px);
  margin: auto;
  padding: 0;
  overflow: auto;
  border: 1px solid var(--ink);
  border-radius: 3px;
  background: var(--surface);
  color: var(--ink-deep);
  box-shadow: 0 16px 48px rgb(16 46 60 / 24%);
}

#suggestion-dialog::backdrop {
  background: rgb(16 46 60 / 58%);
}

.dialog-inner {
  padding: 28px;
}

.dialog-inner h2 {
  margin: 0;
  font-size: 26px;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

#suggestion-description {
  max-width: 62ch;
  margin: 8px 0 22px;
  color: var(--muted);
  font-size: 14px;
}

.form-field {
  margin-top: 18px;
}

.form-field label span {
  color: var(--muted);
  font-weight: 500;
}

.form-error-summary {
  padding: 12px 14px;
  border: 1px solid var(--error);
  font-size: 14px;
}

.field-error {
  margin: 6px 0 0;
  color: var(--error);
  font-size: 13px;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
}

#toast {
  position: fixed;
  z-index: 30;
  bottom: 24px;
  left: 50%;
  width: max-content;
  max-width: calc(100% - 32px);
  padding: 13px 20px;
  transform: translateX(-50%);
  border: 1px solid #a9c8ca;
  border-radius: var(--radius);
  background: var(--ink-deep);
  color: #fff;
  box-shadow: 0 8px 24px rgb(16 46 60 / 20%);
  text-align: center;
}

.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;
}

@media (max-width: 1000px) {
  .filters {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .support-grid {
    gap: 32px;
  }
}

@media (max-width: 680px) {
  .shell {
    width: calc(100% - 32px);
  }

  .header-inner {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    padding-block: 10px;
  }

  .header-actions {
    justify-content: space-between;
    gap: 16px;
  }

  main {
    padding-block: 20px 48px;
  }

  .catalog-heading {
    align-items: end;
    gap: 16px;
    margin-bottom: 14px;
  }

  h1 {
    font-size: 28px;
  }

  .catalog-summary {
    display: none;
  }

  #result-count {
    margin: 0 0 2px;
  }

  #tool-grid,
  .support-grid {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .saved-filter-label {
    min-height: 44px;
  }

  .filters > .button {
    width: 100%;
  }

  .register {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
    margin-block: 10px;
  }

  #tool-register {
    gap: 6px;
  }

  .tool-card {
    --card-padding: 18px;
  }

  .support-grid {
    gap: 40px;
    margin-top: 44px;
  }

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

  .loading-grid span {
    height: 64px;
  }

  .dialog-inner {
    padding: 22px 18px;
  }

  .dialog-actions {
    flex-direction: column;
  }

  .dialog-actions .button {
    width: 100%;
  }
}

@media (max-width: 390px) {
  .brand-tagline {
    font-size: 12px;
  }

  .header-button {
    padding-inline: 12px;
  }

  .catalog-heading {
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  #app *,
  #app *::before,
  #app *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}