/* =========================================================
   UiPartners Theme — Base
   ========================================================= */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--ui-header-h) + 16px);
}

body {
  margin: 0;
  background: var(--ui-bg);
  color: var(--ui-text);
  font-family: var(--ui-font);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: -.01em;
  word-break: keep-all;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img, svg, video, canvas { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p, figure, dl, dd { margin: 0; }
table { border-collapse: collapse; }
address { font-style: normal; }
::selection { background: rgba(0, 171, 240, .35); color: #fff; }

:focus-visible {
  outline: 2px solid var(--ui-brand-2);
  outline-offset: 3px;
  border-radius: 6px;
}

/* 그누보드 공통 클래스 호환 */
.sound_only, .ui-sr {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.ui-skip {
  position: fixed;
  top: 12px; left: 12px;
  z-index: 200;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--ui-brand);
  color: var(--ui-brand-ink);
  font-weight: 700;
  transform: translateY(-160%);
  transition: transform .2s;
}
.ui-skip:focus { transform: none; }

.ui-container {
  width: 100%;
  max-width: calc(var(--ui-container) + var(--ui-gutter) * 2);
  margin: 0 auto;
  padding-left: var(--ui-gutter);
  padding-right: var(--ui-gutter);
}

.ui-main { display: block; outline: none; }

/* ---------- 타이포 ---------- */
.ui-h1 {
  font-size: clamp(36px, 5.6vw, 72px);
  line-height: 1.12;
  font-weight: 700;
  letter-spacing: -.035em;
}
.ui-h2 {
  font-size: clamp(28px, 3.8vw, 50px);
  line-height: 1.22;
  font-weight: 700;
  letter-spacing: -.03em;
}
.ui-h3 {
  font-size: clamp(19px, 1.7vw, 22px);
  line-height: 1.4;
  font-weight: 700;
  letter-spacing: -.02em;
}
.ui-h4 {
  font-size: 17px;
  line-height: 1.45;
  font-weight: 700;
  letter-spacing: -.015em;
}
.ui-lead {
  font-size: clamp(16px, 1.35vw, 19px);
  line-height: 1.75;
  color: var(--ui-text-2);
}
.ui-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ui-brand-2);
}
.ui-eyebrow::before {
  content: '';
  width: 22px; height: 1px;
  background: currentColor;
  opacity: .7;
}
.ui-grad-text {
  /* ui2: 그라데이션 글자 대신 강조색 한 가지 (히어로 강조 문구 .hm-hero__accent 만 예외) */
  color: var(--ui-brand-2);
}
.ui-note {
  margin-top: 28px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ui-text-3);
}
.ui-caption {
  margin-top: 14px;
  font-size: 12.5px;
  color: var(--ui-text-3);
  text-align: center;
}

/* ---------- 섹션 ---------- */
.ui-section {
  position: relative;
  padding: var(--ui-section-y) 0;
}
.ui-section--light {
  background: var(--ui-light);
  color: var(--ui-ink);
}
.ui-section--light .ui-lead,
.ui-section--light p { color: var(--ui-ink-2); }
.ui-section--light .ui-h2,
.ui-section--light .ui-h3,
.ui-section--light .ui-h4 { color: var(--ui-ink); }
.ui-section--light .ui-eyebrow { color: var(--ui-brand-dark); }
.ui-section--light .ui-note { color: var(--ui-ink-3); }

.ui-shead { max-width: 760px; margin-bottom: clamp(40px, 5vw, 64px); }
.ui-shead .ui-lead { margin-top: 20px; }
.ui-shead--center { margin-left: auto; margin-right: auto; text-align: center; }
.ui-shead--center .ui-eyebrow::after {
  content: '';
  width: 22px; height: 1px;
  background: currentColor;
  opacity: .7;
}

.ui-grid { display: grid; gap: clamp(16px, 2vw, 24px); }
.ui-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.ui-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.ui-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 1023px) {
  .ui-grid--3, .ui-grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 639px) {
  .ui-grid--2, .ui-grid--3, .ui-grid--4 { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 스크롤 등장 ---------- */
.js .ui-reveal {
  opacity: 0;
  transform: translate3d(0, 28px, 0);
  transition: opacity var(--ui-dur) var(--ui-ease-out), transform var(--ui-dur) var(--ui-ease-out);
  transition-delay: calc(var(--d, 0) * 70ms);
}
.js .ui-reveal.is-in { opacity: 1; transform: none; }

/* 첫 화면 등장 (페이지 로드 직후) */
.js .ui-intro {
  opacity: 0;
  transform: translate3d(0, 24px, 0);
  animation: ui-intro 1.1s var(--ui-ease-out) forwards;
  animation-delay: calc(.15s + var(--d, 0) * 90ms);
}
.js .ui-mask { display: block; overflow: hidden; padding-bottom: .06em; }
.js .ui-mask > .ui-intro { display: inline-block; transform: translate3d(0, 105%, 0); }
@keyframes ui-intro { to { opacity: 1; transform: none; } }

/* ---------- 모션 최소화 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .js .ui-reveal, .js .ui-intro { opacity: 1; transform: none; }
}