@charset "utf-8";

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
}

body {
  font-family: "Pretendard", "Noto Sans KR", Arial, sans-serif;
  background: #111;
  color: #fff;
}

.intro-wrap {
  display: flex;
  width: 100%;
  height: 100vh;
  min-height: 620px;
  overflow: hidden;
}

.intro-panel {
  position: relative;
  flex: 1 1 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  overflow: hidden;
  color: #fff;
  text-decoration: none;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  transition: flex 0.55s ease;
  isolation: isolate;
}

/* 이미지 경로만 실제 이미지명에 맞게 바꾸면 됩니다. */
.intro-panel--water {
  background-image: url("/img/intro_water.jpg");
}

.intro-panel--it {
  background-image: url("/img/intro_it.jpg");
}

.intro-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: inherit;
  background-position: center;
  background-size: cover;
  transition: transform 0.8s ease;
  z-index: -2;
}

.intro-panel__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.18) 0%,
    rgba(0, 0, 0, 0.38) 55%,
    rgba(0, 0, 0, 0.60) 100%
  );
  transition: background 0.4s ease;
  z-index: -1;
}

.intro-panel__content {
  position: relative;
  width: min(82%, 620px);
  text-align: center;
  transform: translateY(12px);
  transition: transform 0.45s ease;
}

.intro-panel__eyebrow {
  margin: 0 0 14px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.16em;
  opacity: 0.82;
}

.intro-panel h1 {
  margin: 0;
  font-size: clamp(34px, 4vw, 68px);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -0.045em;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.intro-panel__desc {
  max-width: 520px;
  margin: 18px auto 0;
  font-size: clamp(14px, 1.1vw, 17px);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.84);
  word-break: keep-all;
}

.intro-panel__more {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 30px;
  padding: 12px 18px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.35s ease, transform 0.35s ease, background 0.35s ease;
}

/* PC hover 효과 */
@media (hover: hover) and (pointer: fine) {
  .intro-panel:hover {
    flex: 1.12 1 50%;
  }

  .intro-panel:hover::before {
    transform: scale(1.055);
  }

  .intro-panel:hover .intro-panel__overlay {
    background: linear-gradient(
      180deg,
      rgba(0, 0, 0, 0.10) 0%,
      rgba(0, 0, 0, 0.32) 55%,
      rgba(0, 0, 0, 0.58) 100%
    );
  }

  .intro-panel:hover .intro-panel__content {
    transform: translateY(0);
  }

  .intro-panel:hover .intro-panel__more {
    opacity: 1;
    transform: translateY(0);
  }

  .intro-panel__more:hover {
    background: rgba(255, 255, 255, 0.14);
  }
}

/* 가운데 구분선 */
.intro-panel--water::after {
  content: "";
  position: absolute;
  top: 8%;
  right: 0;
  width: 1px;
  height: 84%;
  background: rgba(255, 255, 255, 0.32);
}

/* 태블릿 / 모바일 */
@media (max-width: 768px) {
  .intro-wrap {
    display: block;
    height: auto;
    min-height: 100vh;
  }

  .intro-panel {
    min-height: 50vh;
    width: 100%;
  }

  .intro-panel--water::after {
    top: auto;
    right: 7%;
    bottom: 0;
    width: 86%;
    height: 1px;
  }

  .intro-panel__content {
    width: 88%;
    transform: none;
  }

  .intro-panel h1 {
    font-size: clamp(32px, 9vw, 48px);
  }

  .intro-panel__desc {
    margin-top: 12px;
    font-size: 14px;
  }

  .intro-panel__more {
    margin-top: 20px;
    opacity: 1;
    transform: none;
  }
}