:root {
  --nav-background: #f1f3f5;
  --nav-icon: #d8d8d8;
  --text: #2b2b2b;
  --card-border: #bfc0c2;
  --gallery-width: 1264px;
  --bug-dialog-width: 720px;
  --guide-dialog-width: 640px;
}

* { box-sizing: border-box; }

html { min-width: 320px; }

/* 메인과 에디터의 기본 폰트 */
body,
body.editor {
  font-family: "Pretendard", sans-serif;
}

/* 버튼과 입력창에도 같은 폰트 적용 */
button,
input,
textarea,
select {
  font-family: inherit;
}

/* 공통 내비게이션 */
.site-nav {
  position: fixed;
  z-index: 100;
  top: 10px;
  bottom: 15px;
  left: 8px;
  width: 76px;
  padding: 0 8px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 20px;
  border-radius: 10px;
  background: var(--nav-background);
}

.nav-item {
  color: #333;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  font-size: 13px;
  line-height: 1.2;
}

.nav-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin: 0 auto 8px;
  border-radius: 10px;
  background: #323232;
  color: #fff;
  font-size: 18px;
  line-height: 1;
  transition: background-color 0.3s ease;
}
.nav-icon .bi,
.nav-icon .bi::before { display: block; line-height: 1; }
.nav-item:hover .nav-icon,
.nav-item:focus-visible .nav-icon { background-color: #000; }

/* 메인 화면 플로팅 창 */
.site-dialog {
  position: fixed;
  max-height: min(90dvh, 720px);
  margin: auto;
  padding: 22px 44px 32px;
  border: 0;
  border-radius: 10px;
  background: #fff;
  color: #323232;
  box-shadow: 0 10px 35px #0004;
  overflow: auto;
}
.form-dialog { width: min(var(--bug-dialog-width), calc(100vw - 32px)); }
.guide-dialog { width: min(var(--guide-dialog-width), calc(100vw - 32px)); }
.site-dialog::backdrop { background: rgba(0, 0, 0, 0.66); backdrop-filter: blur(4px); }
.site-dialog h2 { margin: 0 0 26px; text-align: center; font-size: 22px; line-height: 1.3; }
.site-dialog .floating-close {
  position: absolute; z-index: 2; top: 14px; right: 14px;
  display: grid; place-items: center;
  width: 36px; height: 36px; padding: 0; border: 0; border-radius: 50%;
  background: #f0f0f0; color: #333; font-size: 25px; line-height: 1;
  cursor: pointer;
  transition: background-color 0.3s ease, color 0.3s ease;
}
.site-dialog .floating-close:hover,
.site-dialog .floating-close:focus-visible { background-color: #e53935; color: #fff; }
.site-dialog .floating-close .bi,
.site-dialog .floating-close .bi::before { display: block; line-height: 1; }
.guide-content section + section { margin-top: 32px; }
.guide-content h3 { margin: 0 0 8px; font-size: 16px; line-height: 1.5; }
.guide-content ol { margin: 0; padding-left: 1.35em; }
.guide-content li { margin-bottom: 15px; color: #555; font-size: 13px; line-height: 1.55; }
.google-form-container { width: 100%; height: min(70dvh, 560px); overflow: hidden; }
.google-form-container iframe { display: block; width: 100%; height: 100%; border: 0; }
body.has-site-dialog { overflow: hidden; }

/* 메인 / 소개 */
.main-page {
  min-height: 100vh;
  margin-left: 95px;
  padding: 83px 34px 40px;
}

.intro {
  margin: 0 auto 40px;
  text-align: center;
}

.intro h1 {
  margin: 0 0 20px;
  font-size: 22px;
  line-height: 1.25;
}

.intro p {
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
}

/* Justified gallery */
#template-gallery {
  width: min(100%, var(--gallery-width));
  margin: 0 auto;
  padding: 2px;
}

.template-card {
  position: relative;
  overflow: hidden;
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  background: #fff;
}


.template-card img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.template-tag {
  position: absolute;
  z-index: 2;
  top: 12px;
  left: 12px;
  padding: 5px 10px;
  border: 1px solid #075cff;
  border-radius: 999px;
  color: #075cff;
  background: #ffffff;
  font-size: 12px;
  line-height: 1;
  white-space: nowrap;
}

.template-tag--red {
  border-color: #ff3030;
  background-color: #ffffff;
  color: #ff3030;
}

.template-tag--green {
  border-color: #006909;
  background-color: #ffffff;
  color: #006909;
}

.template-tag--purple {
  border-color: #5600e0;
  background-color: #ffffff;
  color: #5600e0;
}

.template-title {
  position: absolute;
  z-index: 5;

  right: 0;
  bottom: 0;
  left: 0;

  padding: 60px 12px 14px;

  color: #fff;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    rgba(0, 0, 0, 0.7) 100%
  );

  text-align: center;
  font-size: 15px;
  font-weight: 400;

  opacity: 0;
  transform: translateY(8px);

  transition:
    opacity 0.2s ease,
    transform 0.2s ease;

  pointer-events: none;
}

.template-card:hover .template-title,
.template-card:focus-visible .template-title {
  opacity: 1;
  transform: translateY(0);
}

.template-card img {
  transition: filter 0.2s ease;
}

.template-card:hover img,
.template-card:focus-visible img {
  filter: brightness(0.92);
}

.google-form-container {
  position: relative;
  min-height: 503px;
}

.google-form-loading {
  position: absolute;
  inset: 0;

  display: grid;
  place-items: center;

  color: #777;
  background: #fff;
}

.google-form-loading[hidden] {
  display: none;
}

.google-form-container iframe {
  display: block;
  width: 100%;
  height: 503px;
  border: 0;
}


/*---------------------------
      타블렛(769~1024)
----------------------------*/
@media (min-width: 769px) and (max-width: 1024px) {
  .main-page {
    margin-left: 95px;
    padding: 61px 40px 40px 16px;
  }

  .intro { margin-bottom: 40px; }
}


/*---------------------------
      모바일 768이하
----------------------------*/
@media (max-width: 768px) {
  .site-nav {
    position: absolute;
    top: 10px;
    right: 14px;
    bottom: auto;
    left: 14px;
    width: auto;
    height: 57px;
    padding: 5px 0 3px;
    border-radius: 10px;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 27px;
  }

  .nav-item { font-size: 10px; }

  .nav-icon {
    width: 31px;
    height: 31px;
    margin-bottom: 2px;
    border-radius: 8px;
  }
  .site-dialog { width: calc(100vw - 24px); max-height: calc(100dvh - 24px); padding: 20px 20px 28px; }
  .site-dialog h2 { padding: 0 38px; margin-bottom: 22px; font-size: 20px; }
  .site-dialog .floating-close { top: 10px; right: 10px; }
  .guide-content li { font-size: 12px; }

  .main-page {
    min-height: 100vh;
    margin-left: 0;
    padding: 99px 14px 40px;
  }

  .intro { margin-bottom: 40px; }

  .intro h1 {
    margin-bottom: 18px;
    font-size: 22px;
  }

  .intro p { font-size: 14px; }

  #template-gallery {
    display: flex;
    width: 100%;
    max-width: 345px;
    flex-direction: column;
    gap: 12px;
  }

  .template-card,
  #template-gallery > .template-card {
    display: block;
    width: 100% !important;
    height: auto !important;
    margin: 0 !important;
  }

  .template-card img {
    width: 100%;
    height: auto;
    object-fit: contain;
  }

  .template-tag {
    top: 11px;
    left: 11px;
  }
}

/* 메인 내비게이션: 반투명한 회색 유리 */
.site-nav {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.6), rgba(241, 243, 245, 0.4));
  box-shadow: inset 0 0 0 1px rgba(207, 212, 220, .85),
              inset 0 1px 0 rgba(255, 255, 255, .8),
              0 4px 16px rgba(35, 43, 58, .055);
}
@media (max-width: 1024px) {
  .site-nav { background: rgba(241, 243, 245, .9); }
  @supports ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
    .site-nav {
      background: linear-gradient(135deg, rgba(255, 255, 255, 0.6), rgba(241, 243, 245, 0.4));
      -webkit-backdrop-filter: blur(10px);
      backdrop-filter: blur(10px);
    }
  }
}
@media (prefers-reduced-transparency: reduce) {
  .site-nav { background: #f1f3f5; -webkit-backdrop-filter: none; backdrop-filter: none; }
}