:root {
  --primary-color: #333;
  --background-color: #fff;
  --text-color: #333;
  /* More CSS variables */
}
[data-theme="dark"] {
  --primary-color: #fff;
  --background-color: #333;
  --text-color: #fff;
}
body {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
  background-color: var(--background-color);
  color: var(--text-color);
}

header {
  background-color: var(--background-color);
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo img {
  height: 50px;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
}

nav a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: bold;
}

.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  background-color: #000;
}

.hero img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.text-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.text-container {
  font-family: "Arial Black", sans-serif;
  text-align: center;
  mix-blend-mode: overlay; /* 배경과 텍스트 블렌딩 */
}

.static-text {
  font-size: 8rem;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.9);
  text-transform: uppercase;
  letter-spacing: -2px;
  margin: 0;
  line-height: 1;
  -webkit-text-stroke: 2px rgba(0, 0, 0, 0.3); /* 텍스트 외곽선 */
}

.dynamic-text {
  font-size: 12rem;
  font-weight: 900;
  color: #ffffff;
  display: block;
  text-transform: uppercase;
  letter-spacing: -4px;
  margin: -20px 0 0 0;
  line-height: 1;
  -webkit-text-stroke: 2px rgba(0, 0, 0, 0.3);
  text-shadow: 0 0 20px rgba(255, 255, 255, 0.2),
    0 0 40px rgba(255, 255, 255, 0.2);
}

@keyframes textChange {
  0% {
    transform: scale(0.95);
    opacity: 0.8;
  }
  50% {
    transform: scale(1.05);
    opacity: 1;
  }
  100% {
    transform: scale(1);
    opacity: 0.8;
  }
}

@keyframes finalTextReveal {
  0% {
    transform: scale(0.8);
    opacity: 0;
  }
  50% {
    transform: scale(1.1);
    filter: blur(4px);
  }
  100% {
    transform: scale(1);
    opacity: 1;
    filter: blur(0);
  }
}

.changing-text {
  animation: textChange 0.1s ease-in-out;
}

.final-text {
  animation: finalTextReveal 0.8s ease-out forwards;
}

/* 배경 오버레이 */
.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    circle at center,
    rgba(0, 0, 0, 0.2) 0%,
    rgba(0, 0, 0, 0.4) 100%
  );
  z-index: 1;
}

footer {
  background-color: #232323;
  color: #fff;
  padding: 4rem;
  margin-top: 2rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.bottom-bar {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid #444;
  text-align: center;
  color: #999;
  font-size: 0.9rem;
}