/* 거래 증빙 도우미 — one stylesheet for every page. Mobile first, no web fonts. */
:root {
  --text: #1a1f1c;
  --muted: #4b5560;
  --line: #d6dce2;
  --soft: #f3f6f9;
  --paper: #ffffff;
  --brand: #1f5da8;
  --brand-dark: #164a88;
  --brand-pale: #e8f0fa;
  --good: #1d6b3a;
  --good-bg: #e7f4ec;
  --warn: #8a5300;
  --warn-bg: #fff4dc;
  --bad: #b3261e;
  --bad-bg: #fdecea;
  --radius: 12px;
  color-scheme: light;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.7;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--brand);
  text-underline-offset: 3px;
}

a:hover {
  color: var(--brand-dark);
}

:focus-visible {
  outline: 3px solid #f2b705;
  outline-offset: 2px;
}

h1,
h2,
h3,
h4 {
  line-height: 1.35;
  letter-spacing: -0.01em;
}

h1 {
  font-size: 1.85rem;
  margin: 0.2em 0 0.4em;
}

h2 {
  font-size: 1.4rem;
  margin: 1.8em 0 0.6em;
}

h3 {
  font-size: 1.15rem;
  margin: 1.4em 0 0.4em;
}

p,
ul,
ol {
  margin: 0 0 1em;
}

ul,
ol {
  padding-left: 1.3em;
}

li + li {
  margin-top: 0.35em;
}

code {
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-size: 0.88em;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.05em 0.35em;
  word-break: break-all;
}

small {
  font-size: 0.88em;
}

.wrap {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 16px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: 8px;
  top: -60px;
  z-index: 20;
  background: var(--text);
  color: #fff;
  padding: 10px 14px;
  border-radius: 8px;
}

.skip-link:focus {
  top: 8px;
  color: #fff;
}

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

/* header & footer */
.site-header {
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.header-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 4px 16px;
  padding-top: 10px;
  padding-bottom: 6px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 48px;
  color: var(--text);
  font-weight: 800;
  font-size: 1.15rem;
  text-decoration: none;
}

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

.site-nav {
  display: flex;
  gap: 4px;
  margin: 0 -10px;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 12px;
  border-radius: 10px;
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--brand-pale);
  color: var(--brand-dark);
}

.site-footer {
  margin-top: 56px;
  border-top: 1px solid var(--line);
  background: var(--soft);
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 1rem;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0 6px;
  margin: 8px -10px 12px;
}

.site-footer nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 10px;
  color: var(--text);
  font-weight: 600;
}

.footer-brand strong {
  color: var(--text);
  margin-right: 6px;
}

/* page basics */
.page {
  padding-top: 8px;
}

.page:focus {
  outline: none;
}

.crumb {
  margin: 10px 0 4px;
  color: var(--muted);
  font-size: 0.95rem;
}

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

.eyebrow {
  margin: 0;
  color: var(--brand);
  font-weight: 800;
  font-size: 0.95rem;
}

.page-head {
  padding: 8px 0 4px;
}

.lead {
  font-size: 1.08rem;
  color: #2c343b;
}

.privacy-line {
  background: var(--good-bg);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: #17482b;
}

/* buttons & fields */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  padding: 10px 18px;
  border: 2px solid var(--brand);
  border-radius: 12px;
  background: #fff;
  color: var(--brand-dark);
  font: inherit;
  font-weight: 800;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  touch-action: manipulation;
}

.btn:hover {
  background: var(--brand-pale);
  color: var(--brand-dark);
}

.btn.primary {
  background: var(--brand);
  color: #fff;
}

.btn.primary:hover {
  background: var(--brand-dark);
  color: #fff;
}

.btn.ghost {
  border-color: var(--line);
  color: var(--text);
}

.btn.danger {
  color: var(--bad);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.field {
  display: grid;
  gap: 6px;
  margin: 18px 0 6px;
  font-weight: 700;
}

.field small {
  font-weight: 400;
  color: var(--muted);
}

input[type="text"],
input[type="number"],
input[type="date"],
input[type="search"],
select,
textarea {
  width: 100%;
  min-height: 50px;
  padding: 10px 12px;
  border: 1.5px solid #aab4be;
  border-radius: 10px;
  background: #fff;
  color: var(--text);
  font: inherit;
  font-weight: 400;
}

textarea {
  min-height: 140px;
  resize: vertical;
}

.field-help {
  color: var(--muted);
  font-size: 1rem;
}

/* notices */
.notice {
  border-radius: var(--radius);
  padding: 12px 16px;
  margin: 14px 0;
  background: var(--soft);
  border: 1px solid var(--line);
}

.notice > :last-child {
  margin-bottom: 0;
}

.notice.ok {
  background: var(--good-bg);
  border-color: #b5dcc3;
}

.notice.warn {
  background: var(--warn-bg);
  border-color: #f0d49a;
}

.notice.bad {
  background: var(--bad-bg);
  border-color: #f2b8b2;
}

.status {
  margin: 14px 0;
  padding: 12px 16px;
  border-radius: var(--radius);
  background: var(--soft);
  font-weight: 600;
}

.status[data-tone="ok"] {
  background: var(--good-bg);
  color: #17482b;
}

.status[data-tone="warn"] {
  background: var(--warn-bg);
  color: #5c3800;
}

.status[data-tone="bad"] {
  background: var(--bad-bg);
  color: #7d1a14;
}

.status[data-tone="busy"] {
  background: var(--brand-pale);
  color: var(--brand-dark);
}

/* tool steps */
.tool-step {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px 16px 20px;
  margin: 20px 0;
  background: #fff;
}

.tool-step > h2 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-size: 1.3rem;
}

.step-no {
  display: inline-grid;
  place-items: center;
  flex: none;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-size: 1rem;
}

.step-intro {
  color: #2c343b;
}

.choice-grid {
  display: grid;
  gap: 10px;
}

.choice {
  position: relative;
  display: block;
  cursor: pointer;
}

.choice input {
  position: absolute;
  opacity: 0;
  inset: 0;
}

.choice span {
  display: grid;
  gap: 2px;
  min-height: 64px;
  padding: 12px 16px 12px 48px;
  border: 2px solid var(--line);
  border-radius: 12px;
  background: #fff;
  position: relative;
}

.choice span::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 50%;
  width: 20px;
  height: 20px;
  margin-top: -10px;
  border: 2px solid #8794a0;
  border-radius: 50%;
  background: #fff;
}

.choice small {
  color: var(--muted);
}

.choice input:checked + span {
  border-color: var(--brand);
  background: var(--brand-pale);
}

.choice input:checked + span::before {
  border-color: var(--brand);
  box-shadow: inset 0 0 0 4px #fff;
  background: var(--brand);
}

.choice input:focus-visible + span {
  outline: 3px solid #f2b705;
  outline-offset: 2px;
}

/* checklist */
.ck-group h3 {
  margin: 22px 0 8px;
  font-size: 1.05rem;
  color: var(--brand-dark);
}

.ck-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.ck-list li + li {
  margin-top: 0;
}

.ck-item {
  border: 1.5px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  background: #fff;
}

.ck-item[data-state="done"] {
  border-color: #9fd0b0;
  background: #f6fbf8;
}

.ck-item[data-state="missing"] {
  border-left: 5px solid #e3a33b;
}

.ck-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
}

.ck-head h4 {
  margin: 0;
  font-size: 1.08rem;
}

.ck-mark {
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border: 2px solid #a8b3bd;
  border-radius: 7px;
  color: #fff;
  font-weight: 900;
  font-size: 0.9rem;
}

.ck-item[data-state="done"] .ck-mark {
  background: var(--good);
  border-color: var(--good);
}

.ck-count {
  margin-left: auto;
  font-weight: 700;
  color: var(--muted);
  font-size: 1rem;
}

.ck-item[data-state="done"] .ck-count {
  color: var(--good);
}

.badge {
  display: inline-block;
  padding: 1px 9px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 800;
}

.badge.need {
  background: #fde8c8;
  color: #6b4100;
}

.badge.soft {
  background: var(--soft);
  color: var(--muted);
}

.ck-why {
  margin: 8px 0 4px;
}

.ck-tip {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 1rem;
}

.ck-tip strong {
  color: var(--text);
  margin-right: 4px;
}

.btn.add {
  width: 100%;
}

.bulk-box {
  margin-top: 22px;
  padding: 16px;
  border: 2px dashed #b6c2cd;
  border-radius: 14px;
  background: var(--soft);
}

.bulk-box h3 {
  margin-top: 0;
}

.loose-title {
  margin: 16px 0 8px;
}

/* file cards */
.file-cards {
  display: grid;
  gap: 8px;
  margin: 8px 0 12px;
}

.fc {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  grid-template-rows: auto 1fr;
  gap: 10px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  position: relative;
}

.fc-thumb {
  width: 72px;
  height: 72px;
  object-fit: cover;
  border-radius: 8px;
  background: var(--soft);
}

.fc-icon {
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--muted);
  border: 1px solid var(--line);
}

.fc-body {
  grid-column: 2;
  grid-row: 1 / span 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  min-width: 0;
}

.fc-name {
  font-size: 1rem;
  overflow-wrap: anywhere;
}

.fc-date,
.fc-meta {
  font-size: 1rem;
  color: var(--muted);
}

.fc-date {
  color: #20503a;
  font-weight: 600;
}

.nowrap {
  white-space: nowrap;
}

.fc-date.warn {
  color: var(--warn);
}

.fc-controls {
  display: grid;
  gap: 6px;
  margin-top: 6px;
}

.fc-controls select,
.fc-controls input {
  min-height: 46px;
  font-size: 1rem;
}

/* 빼기 sits under the thumbnail so it never covers the file name or date. */
.fc-remove {
  grid-column: 1;
  grid-row: 2;
  align-self: start;
  width: 72px;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--bad);
  font: inherit;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
}

/* summary & downloads */
.stat-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 8px;
}

.stat-row div {
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--soft);
}

.stat-row span {
  display: block;
  font-size: 0.88rem;
  color: var(--muted);
}

.stat-row strong {
  font-size: 1.2rem;
}

strong.good {
  color: var(--good);
}

strong.bad {
  color: var(--bad);
}

.name-preview ul {
  list-style: none;
  padding: 0;
}

.name-preview small {
  color: var(--muted);
}

.optional-missing {
  margin: 10px 0;
}

.optional-missing summary,
.faq summary {
  cursor: pointer;
  font-weight: 700;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.download-list {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.download-row {
  display: grid;
  gap: 4px;
}

.download-row .btn {
  width: 100%;
}

.download-row p {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
}

.next-steps {
  margin-top: 18px;
}

.next-steps h3 {
  margin-top: 0;
}

.clear-box {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 1rem;
}

/* explanation blocks */
.explain {
  margin-top: 36px;
}

.explain-grid {
  display: grid;
  gap: 12px;
}

.explain-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
}

.explain-grid h3 {
  margin-top: 0;
}

.explain-grid p:last-child {
  margin-bottom: 0;
}

.faq details {
  border-bottom: 1px solid var(--line);
  padding: 6px 0;
}

.faq details p {
  margin: 4px 0 12px;
}

.link-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 8px;
}

.link-list li + li {
  margin-top: 0;
}

.link-list a {
  display: flex;
  align-items: center;
  min-height: 52px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-weight: 700;
  text-decoration: none;
}

.link-list a::after {
  content: "›";
  margin-left: auto;
  padding-left: 10px;
  font-size: 1.3rem;
}

/* tables */
.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  margin: 12px 0;
}

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 1rem;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
  /* Wrap between words only; wide tables scroll inside .table-scroll instead of splitting "10kg". */
  overflow-wrap: normal;
}

th {
  background: var(--soft);
  white-space: nowrap;
}

td.num {
  text-align: right;
  white-space: nowrap;
}

tr.row-bad td {
  background: var(--bad-bg);
}

tr.row-warn td {
  background: var(--warn-bg);
}

/* home */
.hero {
  padding: 22px 0 8px;
}

.hero h1 {
  font-size: 2rem;
}

.wide-only {
  display: none;
}

.hero .lead {
  max-width: 44em;
}

.trade-cards {
  display: grid;
  gap: 12px;
  margin: 18px 0;
}

.trade-card {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 8px;
  padding: 18px;
  border: 1.5px solid var(--line);
  border-radius: 16px;
  background: #fff;
}

.trade-card h3 {
  margin: 0;
  font-size: 1.25rem;
}

.trade-card ul {
  margin: 0;
  color: #2c343b;
}

.trade-card .btn-row {
  margin-top: 6px;
}

.trade-card .btn {
  flex: 1 1 200px;
}

.flow {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 10px;
  counter-reset: flow;
}

.flow li {
  counter-increment: flow;
  position: relative;
  padding: 12px 14px 12px 58px;
  border-radius: 12px;
  background: var(--soft);
}

.flow li + li {
  margin-top: 0;
}

.flow li::before {
  content: counter(flow);
  position: absolute;
  left: 14px;
  top: 12px;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-weight: 800;
}

.tool-grid {
  display: grid;
  gap: 10px;
}

.tool-card {
  display: grid;
  gap: 4px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--text);
  text-decoration: none;
  min-height: 64px;
}

.tool-card:hover {
  border-color: var(--brand);
  color: var(--text);
}

.tool-card strong {
  color: var(--brand-dark);
  font-size: 1.08rem;
}

.tool-card span {
  color: var(--muted);
  font-size: 1rem;
}

.limit-box {
  border-left: 5px solid #e3a33b;
  background: var(--warn-bg);
  border-radius: 0 12px 12px 0;
  padding: 14px 16px;
}

.limit-box ul {
  margin-bottom: 0;
}

.boribay-box {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  background: var(--soft);
}

.boribay-box p:last-child {
  margin-bottom: 0;
}

/* guides */
.article {
  max-width: 760px;
}

.article-meta {
  color: var(--muted);
  font-size: 1rem;
}

.article h2 {
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.article .shot-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 10px;
}

.article .shot-list li {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
}

.article .shot-list li + li {
  margin-top: 0;
}

.shot-list h3 {
  margin: 0 0 4px;
  font-size: 1.05rem;
}

.shot-list p {
  margin: 0 0 4px;
}

.shot-list .tip {
  color: var(--muted);
  font-size: 1rem;
}

.cta-box {
  margin: 22px 0;
  padding: 16px;
  border-radius: 14px;
  background: var(--brand-pale);
}

.cta-box p {
  margin-bottom: 10px;
}

.cta-box .btn {
  width: 100%;
}

.source-list {
  font-size: 1rem;
  color: var(--muted);
}

/* who maintains a page, when it was published and re-checked, how many sources */
.page-meta {
  margin: 12px 0;
  padding: 10px 14px;
  border-left: 4px solid var(--brand);
  background: var(--soft);
  border-radius: 0 10px 10px 0;
  color: var(--muted);
  font-size: 1rem;
}

.sources ol,
.scope ul,
.tool-about ul {
  padding-left: 1.3em;
}

.sources li,
.scope li,
.tool-about li {
  margin-bottom: 6px;
}

.sources a {
  overflow-wrap: anywhere;
}

.source-note {
  color: var(--muted);
  font-size: 1rem;
}

.tool-about {
  margin-top: 36px;
}

.tool-about h3 {
  margin: 18px 0 6px;
  font-size: 1.1rem;
}

.info-table th {
  width: 9.5em;
}

.info-table td {
  overflow-wrap: anywhere;
}

.change-entry h3 {
  margin: 18px 0 6px;
  font-size: 1.1rem;
}

.change-entry ul {
  margin-top: 0;
}

.footer-op,
.footer-note {
  margin: 6px 0;
}

.nw,
.page-meta time,
.change-entry time {
  white-space: nowrap;
}

.footer-op a {
  color: var(--text);
}

.guide-cards {
  display: grid;
  gap: 10px;
  margin: 10px 0 20px;
}

.guide-card {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--text);
  text-decoration: none;
}

.guide-card strong {
  color: var(--brand-dark);
  font-size: 1.05rem;
}

.guide-card span {
  color: var(--muted);
  font-size: 1rem;
}

.guide-card:hover {
  border-color: var(--brand);
  color: var(--text);
}

.checkbox-list {
  list-style: none;
  padding: 0;
}

.checkbox-list li {
  padding-left: 1.8em;
  position: relative;
}

.checkbox-list li::before {
  content: "□";
  position: absolute;
  left: 0;
  font-weight: 700;
}

/* redactor & pdf list */
.canvas-wrap {
  margin: 12px 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  background: var(--soft);
}

.canvas-wrap canvas {
  display: block;
  width: 100%;
  height: auto;
  touch-action: none;
  cursor: crosshair;
}

.order-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 8px;
}

.order-list li + li {
  margin-top: 0;
}

.order-item {
  display: grid;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.order-item .btn-row .btn {
  min-height: 46px;
  padding: 6px 14px;
  flex: 1 1 auto;
}

.compare-result {
  font-size: 1.1rem;
}

.print-area {
  display: none;
}

@media (min-width: 640px) {
  .wide-only {
    display: inline;
  }

  .wrap {
    padding: 0 24px;
  }

  h1,
  .hero h1 {
    font-size: 2.3rem;
  }

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

  .stat-row {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .fc-controls {
    grid-template-columns: 1fr 1fr;
  }

  .download-row {
    grid-template-columns: minmax(260px, 340px) 1fr;
    align-items: center;
    gap: 16px;
  }

  .tool-step {
    padding: 22px 24px 24px;
  }

  .btn.add {
    width: auto;
  }

  .cta-box .btn {
    width: auto;
  }
}

@media (min-width: 900px) {
  .trade-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .tool-grid,
  .explain-grid,
  .guide-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media print {
  .site-header nav,
  .site-footer nav,
  .skip-link,
  .btn,
  ins.adsbygoogle,
  .google-auto-placed {
    display: none !important;
  }

  body.print-sheet > *:not(.print-area) {
    display: none !important;
  }

  body.print-sheet .print-area {
    display: block;
    font-size: 11pt;
    line-height: 1.45;
    color: #000;
  }

  .print-area h1 {
    font-size: 18pt;
    margin: 0 0 4pt;
  }

  .print-area h2 {
    font-size: 13pt;
    margin: 14pt 0 6pt;
  }

  .print-area table {
    font-size: 9.5pt;
  }

  .print-area th,
  .print-area td {
    border: 1px solid #999;
    padding: 4pt 6pt;
  }

  .print-area tr {
    break-inside: avoid;
  }

  .print-area .sign {
    margin-top: 18pt;
  }

  .print-area .small {
    font-size: 9pt;
    color: #333;
  }

  @page {
    margin: 14mm;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .btn,
  .tool-card,
  .guide-card {
    transition: opacity 0.15s ease;
  }
}