/*! tailwindcss v4.2.1 | MIT License | https://tailwindcss.com */
@layer theme {
  :root,
  :host {
    --font-sans:
      ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji",
      "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    --font-mono:
      ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
      "Courier New", monospace;
    --spacing: 0.25rem;
    --default-font-family: var(--font-sans);
    --default-mono-font-family: var(--font-mono);
  }
}
@layer base {
  *,
  :after,
  :before,
  ::backdrop {
    box-sizing: border-box;
    border: 0 solid;
    margin: 0;
    padding: 0;
  }
  ::file-selector-button {
    box-sizing: border-box;
    border: 0 solid;
    margin: 0;
    padding: 0;
  }
  html,
  :host {
    -webkit-text-size-adjust: 100%;
    tab-size: 4;
    line-height: 1.5;
    font-family: var(
      --default-font-family,
      ui-sans-serif,
      system-ui,
      sans-serif,
      "Apple Color Emoji",
      "Segoe UI Emoji",
      "Segoe UI Symbol",
      "Noto Color Emoji"
    );
    font-feature-settings: var(--default-font-feature-settings, normal);
    font-variation-settings: var(--default-font-variation-settings, normal);
    -webkit-tap-highlight-color: transparent;
  }
  hr {
    height: 0;
    color: inherit;
    border-top-width: 1px;
  }
  abbr:where([title]) {
    -webkit-text-decoration: underline dotted;
    text-decoration: underline dotted;
  }
  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    font-size: inherit;
    font-weight: inherit;
  }
  a {
    color: inherit;
    -webkit-text-decoration: inherit;
    -webkit-text-decoration: inherit;
    -webkit-text-decoration: inherit;
    -webkit-text-decoration: inherit;
    text-decoration: inherit;
  }
  b,
  strong {
    font-weight: bolder;
  }
  code,
  kbd,
  samp,
  pre {
    font-family: var(
      --default-mono-font-family,
      ui-monospace,
      SFMono-Regular,
      Menlo,
      Monaco,
      Consolas,
      "Liberation Mono",
      "Courier New",
      monospace
    );
    font-feature-settings: var(--default-mono-font-feature-settings, normal);
    font-variation-settings: var(
      --default-mono-font-variation-settings,
      normal
    );
    font-size: 1em;
  }
  small {
    font-size: 80%;
  }
  sub,
  sup {
    vertical-align: baseline;
    font-size: 75%;
    line-height: 0;
    position: relative;
  }
  sub {
    bottom: -0.25em;
  }
  sup {
    top: -0.5em;
  }
  table {
    text-indent: 0;
    border-color: inherit;
    border-collapse: collapse;
  }
  :-moz-focusring {
    outline: auto;
  }
  progress {
    vertical-align: baseline;
  }
  summary {
    display: list-item;
  }
  ol,
  ul,
  menu {
    list-style: none;
  }
  img,
  svg,
  video,
  canvas,
  audio,
  iframe,
  embed,
  object {
    vertical-align: middle;
    display: block;
  }
  img,
  video {
    max-width: 100%;
    height: auto;
  }
  button,
  input,
  select,
  optgroup,
  textarea {
    font: inherit;
    font-feature-settings: inherit;
    font-variation-settings: inherit;
    letter-spacing: inherit;
    color: inherit;
    opacity: 1;
    background-color: #0000;
    border-radius: 0;
  }
  ::file-selector-button {
    font: inherit;
    font-feature-settings: inherit;
    font-variation-settings: inherit;
    letter-spacing: inherit;
    color: inherit;
    opacity: 1;
    background-color: #0000;
    border-radius: 0;
  }
  :where(select:is([multiple], [size])) optgroup {
    font-weight: bolder;
  }
  :where(select:is([multiple], [size])) optgroup option {
    padding-inline-start: 20px;
  }
  ::file-selector-button {
    margin-inline-end: 4px;
  }
  ::placeholder {
    opacity: 1;
  }
  @supports (not ((-webkit-appearance: -apple-pay-button))) or
    (contain-intrinsic-size: 1px) {
    ::placeholder {
      color: currentColor;
    }
    @supports (color: color-mix(in lab, red, red)) {
      ::placeholder {
        color: color-mix(in oklab, currentcolor 50%, transparent);
      }
    }
  }
  textarea {
    resize: vertical;
  }
  ::-webkit-search-decoration {
    -webkit-appearance: none;
  }
  ::-webkit-date-and-time-value {
    min-height: 1lh;
    text-align: inherit;
  }
  ::-webkit-datetime-edit {
    display: inline-flex;
  }
  ::-webkit-datetime-edit-fields-wrapper {
    padding: 0;
  }
  ::-webkit-datetime-edit {
    padding-block: 0;
  }
  ::-webkit-datetime-edit-year-field {
    padding-block: 0;
  }
  ::-webkit-datetime-edit-month-field {
    padding-block: 0;
  }
  ::-webkit-datetime-edit-day-field {
    padding-block: 0;
  }
  ::-webkit-datetime-edit-hour-field {
    padding-block: 0;
  }
  ::-webkit-datetime-edit-minute-field {
    padding-block: 0;
  }
  ::-webkit-datetime-edit-second-field {
    padding-block: 0;
  }
  ::-webkit-datetime-edit-millisecond-field {
    padding-block: 0;
  }
  ::-webkit-datetime-edit-meridiem-field {
    padding-block: 0;
  }
  ::-webkit-calendar-picker-indicator {
    line-height: 1;
  }
  :-moz-ui-invalid {
    box-shadow: none;
  }
  button,
  input:where([type="button"], [type="reset"], [type="submit"]) {
    appearance: button;
  }
  ::file-selector-button {
    appearance: button;
  }
  ::-webkit-inner-spin-button {
    height: auto;
  }
  ::-webkit-outer-spin-button {
    height: auto;
  }
  [hidden]:where(:not([hidden="until-found"])) {
    display: none !important;
  }
}
@layer components;
@layer utilities {
  .visible {
    visibility: visible;
  }
  .relative {
    position: relative;
  }
  .start {
    inset-inline-start: var(--spacing);
  }
  .table {
    display: table;
  }
}
:root {
  --ink: #13233f;
  --muted: #68758a;
  --blue: #2563a9;
  --sky: #e8f3ff;
  --line: #dbe4f0;
  --paper: #f7f9fc;
}
* {
  box-sizing: border-box;
}
body {
  color: var(--ink);
  background:
    radial-gradient(circle at 80% 8%, #e4eeff 0, transparent 24%), var(--paper);
  margin: 0;
  font-family:
    Arial,
    Noto Sans KR,
    sans-serif;
}
.shell {
  width: min(1220px, 100% - 48px);
  margin: auto;
}
.topbar {
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  z-index: 20;
  background: #f7f9fce0;
  border-bottom: 1px solid #13233f1a;
  justify-content: space-between;
  align-items: center;
  height: 72px;
  padding: 0 max(24px, 50% - 610px);
  display: flex;
  position: sticky;
  top: 0;
}
.brand {
  align-items: center;
  gap: 10px;
  font-weight: 800;
  display: flex;
}
.brandMark {
  background: var(--blue);
  color: #fff;
  border-radius: 11px;
  place-items: center;
  width: 34px;
  height: 34px;
  display: grid;
}
.topbar nav {
  gap: 8px;
  display: flex;
}
.topbar nav a {
  color: var(--blue);
  background: #fff;
  border: 1px solid #bdd0e9;
  border-radius: 11px;
  padding: 9px 12px;
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
}
.hero {
  padding: 72px 0 56px;
}
.eyebrow {
  letter-spacing: 0.18em;
  color: var(--blue);
  margin: 0 0 17px;
  font-size: 11px;
  font-weight: 800;
}
.hero h1 {
  letter-spacing: -0.055em;
  margin: 0;
  font-size: 53px;
  line-height: 1.12;
}
.hero h1 em {
  color: var(--blue);
  font-style: normal;
}
.hero > p:last-child {
  color: var(--muted);
  margin: 24px 0 0;
  font-size: 15px;
}
.guideArea {
  grid-template-columns: 245px 1fr;
  align-items: start;
  gap: 18px;
  padding-bottom: 90px;
  display: grid;
}
aside {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 20px;
  padding: 15px;
  position: sticky;
  top: 90px;
}
aside > p {
  color: var(--muted);
  letter-spacing: 0.12em;
  margin: 8px 8px 12px;
  font-size: 11px;
  font-weight: 800;
}
aside button {
  width: 100%;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  background: 0 0;
  border: 0;
  border-radius: 12px;
  align-items: center;
  gap: 10px;
  padding: 11px 10px;
  display: flex;
}
aside button:hover {
  background: #f2f6fb;
}
aside button.active {
  background: var(--blue);
  color: #fff;
}
aside button b {
  background: var(--sky);
  min-width: 23px;
  height: 23px;
  color: var(--blue);
  border-radius: 8px;
  place-items: center;
  font-size: 10px;
  display: grid;
}
aside button.active b {
  color: #fff;
  background: #fff3;
}
aside button span {
  font-size: 12px;
  font-weight: 700;
  line-height: 1.35;
}
.viewer {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 24px;
  padding: 27px;
  box-shadow: 0 18px 45px #13233f0f;
}
.viewerHead {
  justify-content: space-between;
  align-items: start;
  padding: 4px 4px 24px;
  display: flex;
}
.viewerHead span {
  letter-spacing: 0.14em;
  color: var(--blue);
  font-size: 10px;
  font-weight: 800;
}
.viewerHead h2 {
  letter-spacing: -0.04em;
  margin: 11px 0 7px;
  font-size: 30px;
}
.viewerHead p {
  color: var(--muted);
  margin: 0;
  font-size: 13px;
}
.count {
  color: var(--muted);
  background: var(--sky);
  border-radius: 20px;
  padding: 8px 11px;
  font-size: 12px;
}
.slide {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 15px;
  overflow: hidden;
  min-height: 380px;
}
.slide img {
  width: 100%;
  height: auto;
  display: block;
  transition: opacity 0.15s ease-in-out;
}
.slide img.loading {
  opacity: 0.4;
}
.pager {
  justify-content: space-between;
  padding-top: 18px;
  display: flex;
}
.pager button {
  color: var(--blue);
  cursor: pointer;
  background: #fff;
  border: 1px solid #bdd0e9;
  border-radius: 11px;
  padding: 10px 14px;
  font-size: 12px;
  font-weight: 700;
}
.pager button:disabled {
  opacity: 0.3;
  cursor: default;
}
footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  padding: 28px 0 38px;
  font-size: 11px;
}
footer .shell {
  align-items: center;
  gap: 20px;
  display: flex;
}
footer strong {
  color: var(--ink);
  font-size: 13px;
}
footer a {
  color: var(--blue);
  margin-left: auto;
  font-weight: 700;
  text-decoration: none;
}
@media (width<=900px) {
  .guideArea {
    grid-template-columns: 1fr;
  }
  aside {
    gap: 6px;
    padding: 10px;
    display: flex;
    position: static;
    overflow-x: auto;
  }
  aside > p {
    display: none;
  }
  aside button {
    width: auto;
    min-width: max-content;
  }
  aside button span {
    font-size: 11px;
  }
  .viewer {
    padding: 18px;
  }
}
@media (width<=600px) {
  .shell {
    width: min(100% - 28px, 1220px);
  }
  .topbar {
    height: 62px;
    padding: 0 14px;
  }
  .brand > span:last-child {
    display: none;
  }
  .topbar nav a {
    padding: 8px;
    font-size: 10px;
  }
  .hero {
    padding: 48px 0 34px;
  }
  .hero h1 {
    font-size: 39px;
  }
  .hero > p:last-child {
    font-size: 13px;
    line-height: 1.6;
  }
  .viewerHead {
    display: block;
  }
  .count {
    margin-top: 13px;
    display: inline-block;
  }
  .viewerHead h2 {
    font-size: 25px;
  }
  .viewerHead p {
    line-height: 1.6;
  }
  .slide {
    overflow-x: auto;
  }
  .slide img {
    min-width: 850px;
  }
  .guideArea {
    padding-bottom: 55px;
  }
  footer .shell {
    display: block;
  }
  footer span,
  footer a {
    margin: 7px 0 0;
    display: block;
  }
}
.brandIcon {
  object-fit: contain;
  width: 58px;
  height: 58px;
  display: block;
}
.topbar nav a {
  background: 0 0;
  border: 0;
  border-radius: 0;
  padding: 9px 4px;
}
.topbar nav a:hover {
  text-decoration: underline;
}
@media (width<=600px) {
  .brandIcon {
    width: 46px;
    height: 46px;
  }
}

html {
  overflow-y: scroll;
  scrollbar-gutter: stable;
}

/* =========================================
   Unified Site Header (Pixel-perfect & Consistent)
   ========================================= */
.siteHeader {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 72px;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid #e2e8f0;
  width: 100%;
  box-sizing: border-box;
  font-family:
    -apple-system, BlinkMacSystemFont, "Pretendard Variable", Pretendard,
    "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
}

.headerShell {
  width: min(1180px, 100% - 48px);
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-sizing: border-box;
}

.headerBrand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: #14233a;
  flex-shrink: 0;
}

.headerLogo {
  width: 46px;
  height: 46px;
  object-fit: contain;
  display: block;
}

.headerBrand strong,
.headerBrand span {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #14233a;
  line-height: 1.2;
}

.headerNav {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-shrink: 0;
}

.headerNav a {
  font-size: 14px;
  font-weight: 700;
  color: #7b8c9e;
  text-decoration: none;
  padding: 8px 0;
  line-height: 1;
  border: none !important;
  border-bottom: none !important;
  box-shadow: none !important;
  outline: none;
  transition: color 0.15s ease;
  white-space: nowrap;
  position: relative;
}

.headerNav a:hover {
  color: #14233a;
  text-decoration: none;
  border: none !important;
  border-bottom: none !important;
}

.headerNav a.active {
  color: #2f80ed;
  font-weight: 700;
  text-decoration: none;
  border: none !important;
  border-bottom: none !important;
  box-shadow: none !important;
}

.headerNav a.active:hover {
  color: #246fcf;
}

.headerNav a::before,
.headerNav a::after {
  display: none !important;
  content: none !important;
}

@media (max-width: 640px) {
  .headerShell {
    width: min(100% - 28px, 1180px);
  }
  .siteHeader {
    height: 64px;
  }
  .headerLogo {
    width: 38px;
    height: 38px;
  }
  .headerBrand strong,
  .headerBrand span {
    font-size: 14px;
  }
  .headerNav {
    gap: 14px;
  }
  .headerNav a {
    font-size: 12px;
  }
}