:root {
  --brand: #29bbe3;
  --brand-soft: #b6dee7;
  --white: #ffffff;

  --text-on-blue: rgba(255, 255, 255, 0.92);
  --text-soft: rgba(182, 222, 231, 0.95);

  --shadow-sm: 0 4px 10px rgba(0, 0, 0, 0.12);
  --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.16);

  --radius-lg: 20px;
  --radius-md: 12px;
}

body {
  background: linear-gradient(180deg, #29bbe3 0%, #26b2d9 55%, #29bbe3 100%);
  font-family: "Arial", "Noto Sans KR", sans-serif;
  color: var(--text-on-blue);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
}

.hover-focus-effect {
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease;
}
.hover-focus-effect:hover {
  transform: translateY(-1px) scale(1.02);
}

.letter-spacing-small {
  letter-spacing: -8px;
}
.letter-spacing-medium {
  letter-spacing: -2px;
}
.letter-spaceing-large {
  letter-spacing: -2px;
}
.letter-spaceing-xlarge {
  letter-spacing: -1px;
}
.letter-spacing-zero {
  letter-spacing: 0px;
}

.logo-letter {
  display: inline;
  max-height: 114px;
}

.intro,
.outline,
.value,
.faq,
.use-cases,
.footer {
  width: 100%;
}

/* Demo Button */
.demo-button {
  position: fixed;
  top: 54px;
  right: 93px;
  background-color: #b6dee7;
  color: #ffffff;
  padding: 8px 22px;
  border-radius: 10px;
  text-decoration: none;
  box-shadow: 0px 5px 10px 0px rgba(0, 0, 0, 0.15);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: opacity 0.3s;
}

.demo-button:hover {
  opacity: 0.9;
}

.demo-button-text {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  text-align: center;
  line-height: 20px;
}
.intro {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 14px 93px;
  margin-top: 191px;
  margin-bottom: 140px;
}

.intro-logo {
  width: 82px;
  height: 65.959px;
  margin-bottom: 48px;
}

.intro-title {
  display: flex;
  align-items: center;
  color: var(--text-on-blue);
  text-align: center;
  font-size: 110px;
  font-weight: 700;
  line-height: 1.02;
  margin-bottom: 14px;
}

.intro-title .logo-letter {
  height: 100px;
  margin-right: 6px;
  margin-top: -4px;
}

.intro-subtitle {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.intro-subtitle span {
  color: var(--text-soft);
  font-size: 42px;
  font-weight: 400;
  line-height: 1.25;
  text-align: center;
}

.intro-subtitle .logo-letter {
  height: 32px;
  margin-top: -4px;
}

.outline {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-bottom: 140px;
  padding: 0 93px;
}

.outline-text {
  max-width: 1200px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  letter-spacing: -1.2px;
  margin-bottom: 34px;
}

.outline-text-title {
  color: var(--text-on-blue);
  font-size: 44px;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  margin-bottom: 12px;
}

.outline-text-title .logo-letter {
  height: 34px;
  margin-right: 6px;
  margin-top: -3px;
}

.outline-text-description {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: var(--text-soft);
  font-size: 28px;
  font-weight: 400;
  line-height: 1.5;
  text-align: center;
}

.outline-text-description .logo-letter {
  height: 24px;
  margin-right: 2px;
  vertical-align: -2px;
}

.service-card-box {
  display: grid;
  width: 100%;
  max-width: 1440px;
  padding: 0 93px;
  row-gap: 18px;
  column-gap: 18px;
  grid-template-columns: repeat(4, 1fr);
}

.service-card {
  width: 100%;
  max-width: 292.5px;
  height: 270px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
}

.service-card .img-box {
  height: 110px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
}

.service-card .img-box img {
  max-height: 92px;
}

.service-card .text-box {
  width: 100%;
  max-width: 292.5px;
  min-height: 140px;
  height: auto;
  padding: 14px 14px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(41, 187, 227, 0.14);
  gap: 6px;
}

.service-card-title {
  color: var(--brand);
  text-align: center;
  font-size: 22px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -1px;
}

.service-card-description {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2px;
}

.service-card-description .first {
  color: rgba(41, 187, 227, 0.92);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: -0.6px;
  text-align: center;
}

.service-card-description .second {
  color: rgba(41, 187, 227, 0.55);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.55;
  letter-spacing: -0.6px;
  text-align: center;
}

.value {
  padding: 54px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin-bottom: 140px;
}

.value-title {
  color: var(--text-on-blue);
  text-align: center;
  font-size: 44px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -2px;
  margin-bottom: 44px;
}

.value-title-highlight {
  color: var(--brand-soft);
}

.value-card-box {
  display: grid;
  width: 100%;
  gap: 18px;
  grid-template-columns: repeat(3, 1fr);
}

.value-card {
  padding: 24px 24px;
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(41, 187, 227, 0.14);
}

.value-card-title {
  color: var(--brand);
  font-size: 26px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -1.2px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.value-emoji {
  width: 34px;
  height: 34px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  border-radius: 10px;
  background: rgba(182, 222, 231, 0.9);
  color: var(--brand);
  font-size: 16px;
  flex: 0 0 auto;
}

.value-card-description {
  color: rgba(41, 187, 227, 0.58);
  font-size: 18px;
  font-weight: 500;
  line-height: 1.7;
  letter-spacing: -0.6px;
}

.value-highlight {
  color: rgba(41, 187, 227, 0.98);
  font-weight: 800;
}

.faq {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 26px;
  margin-bottom: 200px;
}

.faq-title {
  color: var(--text-on-blue);
  text-align: center;
  font-size: 44px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -2px;
}

.faq-card-box {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  width: 100%;
  max-width: 1440px;
  padding: 0 93px;
}

.faq-card {
  padding: 22px 28px 22px;
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(41, 187, 227, 0.14);
}

.faq-card .question {
  color: var(--brand);
  font-size: 28px;
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -1.2px;
  margin-bottom: 10px;
}

.faq-card .answer {
  color: rgba(41, 187, 227, 0.58);
  font-size: 18px;
  font-weight: 500;
  line-height: 1.75;
  letter-spacing: -0.6px;
}

.faq-card .answer .logo-letter {
  height: 16px;
}

.faq-card .highlight {
  color: rgba(41, 187, 227, 0.98);
  font-weight: 800;
}

.use-cases {
  width: 100%;
  padding: 80px 93px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.use-cases .section-title {
  color: var(--text-on-blue);
  font-weight: 700;
  font-size: 44px;
  line-height: 1.2;
  letter-spacing: -2px;
}

.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  width: 100%;
  max-width: 1440px;
  padding: 20px 0px;
  margin-bottom: 150px;
}

.use-case-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease;
  border: 1px solid rgba(41, 187, 227, 0.14);
}

.use-case-card:hover {
  transform: translateY(-2px) scale(1.01);
  box-shadow: var(--shadow-md);
}

.use-case-card a {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  padding-bottom: 12px;
}

.use-case-card img {
  width: 100%;
  object-fit: cover;
  border-radius: 0;
  height: 243px;
}

.use-case-title {
  font-size: 28px;
  font-weight: 900;
  color: var(--brand);
  text-align: center;
  letter-spacing: -1px;
  line-height: 1.2;
  margin-top: 14px;
  margin-bottom: 0;
}

.footer {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 28px;
  padding-bottom: 26px;
}

.footer-logo {
  width: 182px;
}

.footer-info {
  font-size: 20px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.88);
  text-align: center;
  line-height: 1.7;
  letter-spacing: -0.6px;
}

.footer-info .tone-down {
  color: rgba(182, 222, 231, 0.95);
}

.footer-info.pc {
  display: block;
}
.footer-info.mobile {
  display: none;
}

.mobile-break {
  display: none;
}

@media screen and (max-width: 1130px) {
  .intro {
    margin-top: 130px;
    padding: 14px 40px;
    margin-bottom: 100px;
  }

  .intro-logo {
    width: 90px;
  }

  .intro-title {
    font-size: 78px;
  }

  .intro-title .logo-letter {
    height: 72px;
  }

  .intro-subtitle span {
    font-size: 30px;
    line-height: 1.35;
  }

  .intro-subtitle .logo-letter {
    height: 22px;
    margin-top: -2px;
  }

  .outline {
    margin-bottom: 90px;
    padding: 0 40px;
  }

  .outline-text-title {
    font-size: 34px;
    line-height: 1.5;
  }

  .outline-text-title .logo-letter {
    height: 30px;
    margin-top: -2px;
  }

  .outline-text-description {
    font-size: 22px;
  }

  .outline-text-description .logo-letter {
    height: 22px;
  }

  .outline-card-box {
    grid-template-columns: repeat(2, 1fr);
  }

  .value {
    padding: 54px;
  }

  .value-title {
    font-size: 34px;
    margin-bottom: 32px;
  }

  .value-card-box {
    grid-template-columns: 1fr;
  }
  .service-card-box {
    grid-template-columns: repeat(2, 1fr);
    padding: 0;
    gap: 18px;
    width: 100%;
  }

  .service-card {
    max-width: 100%;
    height: auto;
    min-height: 240px;
  }

  .service-card .text-box {
    max-width: 100%;
    padding: 15px;
    min-height: 125px;
    height: auto;
  }

  .faq {
    margin-bottom: 140px;
    padding: 0 40px;
  }

  .faq-title {
    font-size: 34px;
  }

  .faq-card-box {
    grid-template-columns: 1fr;
    padding: 0;
  }

  .use-cases {
    padding: 60px 40px 20px;
  }

  .use-cases .section-title {
    font-size: 34px;
  }

  .use-cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer {
    padding: 0 40px 30px;
  }

  .footer-info {
    font-size: 18px;
    line-height: 28px;
  }
}

@media screen and (max-width: 767px) {
  .mobile-break {
    display: block;
  }

  .demo-button {
    top: 20px;
    right: 20px;
    padding: 6px 18px;
  }

  .demo-button-text {
    font-size: 14px;
    line-height: 16px;
  }

  .intro {
    padding: 14px 20px;
    margin-top: 110px;
    margin-bottom: 70px;
  }

  .intro-logo {
    width: 60px;
    margin-bottom: 30px;
  }

  .intro-title {
    font-size: 46px;
  }

  .intro-title .logo-letter {
    height: 44px;
  }

  .intro-subtitle span {
    font-size: 18px;
    line-height: 1.45;
  }

  .intro-subtitle .logo-letter {
    height: 14px;
  }

  .outline {
    margin-bottom: 60px;
    padding: 0 20px;
  }

  .outline-text-title {
    font-size: 24px;
  }

  .outline-text-title .logo-letter {
    height: 24px;
    margin-top: -4px;
  }

  .outline-text-description {
    font-size: 16px;
    line-height: 1.6;
  }

  .outline-text-description .logo-letter {
    height: 16px;
  }

  .outline-card-box {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .outline-card-title {
    font-size: 20px;
  }

  .outline-card-description {
    font-size: 15px;
  }

  .value {
    padding: 20px;
    margin-bottom: 45px;
  }

  .value-title {
    font-size: 24px;
    margin-bottom: 24px;
  }

  .value-card-title {
    font-size: 20px;
  }

  .value-card-description {
    font-size: 15px;
    line-height: 1.65;
  }
  .service-card-box {
    grid-template-columns: 1fr;
    gap: 10px;
    width: 100%;
    padding: 0;
  }

  .service-card {
    max-width: 100%;
    height: auto;
    min-height: 200px;
  }

  .service-card .img-box {
    height: 100px;
  }

  .service-card .text-box {
    max-width: 100%;
    padding: 14px;
    min-height: 110px;
    height: auto;
  }

  .service-card-title {
    font-size: 20px;
    line-height: 1.2;
  }

  .service-card-description .first,
  .service-card-description .second {
    font-size: 14px;
    line-height: 1.55;
  }

  .faq {
    margin-bottom: 45px;
    padding: 0 20px;
    gap: 18px;
  }

  .faq-title {
    font-size: 24px;
  }

  .faq-card .question {
    font-size: 18px;
  }

  .faq-card .answer {
    font-size: 15px;
  }

  .use-cases {
    padding: 44px 20px 20px;
  }

  .use-cases .section-title {
    font-size: 24px;
  }

  .use-cases-grid {
    grid-template-columns: 1fr;
    margin-bottom: 70px;
  }

  .use-case-card img {
    height: 180px;
  }

  .use-case-title {
    font-size: 18px;
  }

  .footer {
    padding: 0 20px 34px;
  }

  .footer-logo {
    width: 140px;
  }

  .footer-info {
    font-size: 13px;
    line-height: 1.7;
    padding: 0 15px;
  }
}

@media screen and (max-width: 480px) {
  .intro {
    margin-top: 50px;
  }

  .letter-spacing-small {
    letter-spacing: -3px;
  }

  .intro-logo {
    margin-bottom: 14px;
  }

  .intro-title {
    font-size: 32px;
    margin-bottom: 0px;
  }

  .intro-title .logo-letter {
    height: 30px;
  }

  .outline-text-description {
    letter-spacing: -1.8px;
  }

  .footer-info.pc {
    display: none;
  }
  .footer-info.mobile {
    display: block;
  }
}