:root {
  --bg: #f5f9ff;
  --bg-soft: #edf6ff;
  --white: #ffffff;

  --text: #152033;
  --muted: #667891;

  --primary: #6db7ff;
  --primary-strong: #2f8ff0;
  --primary-dark: #176ec8;
  --navy: #10243d;

  --line: rgba(21, 32, 51, 0.12);
  --card: rgba(255, 255, 255, 0.78);

  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;

  --shadow-soft: 0 20px 60px rgba(47, 143, 240, 0.16);
  --shadow-card: 0 14px 42px rgba(21, 32, 51, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--navy);
}

body {
  margin: 0;
  padding-bottom: 0;
  font-family: "Pretendard", "Noto Sans KR", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--bg);
  word-break: keep-all;
}

body.is-locked {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

img {
  display: block;
  width: 100%;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

/* Header */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 80;
  width: 100%;
  background: rgba(245, 249, 255, 0.74);
  border-bottom: 1px solid rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(18px);
  transition: box-shadow 0.25s ease, background 0.25s ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 12px 36px rgba(21, 32, 51, 0.08);
}

.header-inner {
  width: min(1180px, calc(100% - 32px));
  height: 74px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: inline-flex;
  align-items: center;
}

.logo-text {
  color: var(--navy);
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.06em;
}

.header-blog {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, #7dc4ff, #2f8ff0);
  color: var(--white);
  font-size: 14px;
  font-weight: 900;
  box-shadow: 0 12px 28px rgba(47, 143, 240, 0.25);
}

/* Hero */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background:
    linear-gradient(135deg, #f3faff 0%, #e8f5ff 42%, #d7ecff 100%);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(245, 249, 255, 0.96) 0%, rgba(245, 249, 255, 0.82) 42%, rgba(245, 249, 255, 0.28) 100%),
    url("https://picsum.photos/seed/youngtv-hero/1900/1200") center / cover no-repeat;
  opacity: 0.9;
}

.hero-soft-light {
  position: absolute;
  width: 680px;
  height: 680px;
  right: -180px;
  top: 12%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(109, 183, 255, 0.46), transparent 68%);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 92px;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  margin: 0 0 22px;
  padding: 10px 15px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.12em;
  box-shadow: 0 12px 32px rgba(47, 143, 240, 0.12);
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  color: var(--navy);
  font-size: clamp(48px, 8vw, 92px);
  line-height: 1.04;
  letter-spacing: -0.08em;
}

.hero-desc {
  max-width: 660px;
  margin: 26px 0 0;
  color: rgba(16, 36, 61, 0.74);
  font-size: clamp(18px, 2.2vw, 23px);
  line-height: 1.62;
  letter-spacing: -0.04em;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.hero-badges span {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 15px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.74);
  color: var(--navy);
  font-size: 14px;
  font-weight: 900;
  box-shadow: 0 12px 30px rgba(21, 32, 51, 0.08);
}

/* Info Band */

.info-band {
  background: var(--navy);
  color: var(--white);
}

.info-band-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 18px;
}

.info-band strong {
  flex: 0 0 auto;
  padding: 9px 14px;
  border-radius: 999px;
  background: var(--primary);
  color: var(--navy);
  font-size: 14px;
  font-weight: 900;
}

.info-band span {
  color: rgba(255, 255, 255, 0.78);
  font-weight: 700;
}

/* Common Section */

.section {
  padding: 110px 0;
}

.section-label {
  margin: 0 0 12px;
  color: var(--primary-dark);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.section-head {
  max-width: 720px;
  margin-bottom: 48px;
}

.section-head h2,
.intro-text h2,
.point-text h2,
.faq-title h2,
.cta-box h2 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.14;
  letter-spacing: -0.07em;
}

.section-head p:not(.section-label),
.intro-text p:not(.section-label),
.faq-title p {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.72;
}

.section-head.light h2,
.section-head.light p {
  color: var(--white);
}

.section-head.light p:not(.section-label) {
  color: rgba(255, 255, 255, 0.72);
}

.section-head.light .section-label {
  color: #9fd4ff;
}

/* Intro */

.intro-section {
  background: var(--white);
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  align-items: center;
  gap: 54px;
}

.intro-text p:not(.section-label) {
  max-width: 620px;
}

.intro-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-soft);
}

.intro-card img {
  aspect-ratio: 1 / 0.86;
  object-fit: cover;
}

.intro-card-text {
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 20px;
  padding: 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(14px);
}

.intro-card-text strong {
  display: block;
  color: var(--navy);
  font-size: 20px;
  font-weight: 900;
}

.intro-card-text span {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-weight: 700;
}

/* Services */

.services-section {
  background:
    radial-gradient(circle at 0 0, rgba(109, 183, 255, 0.24), transparent 32%),
    var(--bg);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.service-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--white);
  box-shadow: var(--shadow-card);
}

.service-icon {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.84);
  color: var(--primary-dark);
  font-weight: 900;
  backdrop-filter: blur(10px);
}

.service-card img {
  aspect-ratio: 1 / 0.82;
  object-fit: cover;
}

.service-body {
  padding: 24px;
}

.service-body h3 {
  margin: 0;
  color: var(--navy);
  font-size: 23px;
  letter-spacing: -0.05em;
}

.service-body p {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.68;
}

/* Process */

.process-section {
  background:
    radial-gradient(circle at 18% 12%, rgba(109, 183, 255, 0.32), transparent 32%),
    linear-gradient(135deg, #10243d, #1a4b78);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.process-card {
  min-height: 280px;
  padding: 30px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.process-card span {
  color: #9fd4ff;
  font-size: 42px;
  font-weight: 900;
  letter-spacing: -0.06em;
}

.process-card h3 {
  margin: 48px 0 12px;
  font-size: 24px;
  letter-spacing: -0.05em;
}

.process-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.68;
}

/* Point */

.point-section {
  background: var(--white);
}

.point-grid {
  display: grid;
  grid-template-columns: 0.9fr 1fr;
  align-items: center;
  gap: 58px;
}

.point-image {
  overflow: hidden;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-soft);
}

.point-image img {
  aspect-ratio: 1 / 0.95;
  object-fit: cover;
}

.point-list {
  display: grid;
  gap: 18px;
  margin-top: 32px;
}

.point-list div {
  padding: 24px;
  border-radius: 22px;
  background: var(--bg-soft);
  border: 1px solid rgba(109, 183, 255, 0.22);
}

.point-list strong {
  display: block;
  color: var(--navy);
  font-size: 19px;
  font-weight: 900;
}

.point-list p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.68;
}

/* Works */

.works-section {
  background: var(--bg);
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.work-item {
  overflow: hidden;
  padding: 0;
  border: 0;
  border-radius: 24px;
  background: #dbeeff;
  cursor: pointer;
  box-shadow: 0 14px 38px rgba(21, 32, 51, 0.08);
}

.work-item img {
  aspect-ratio: 1 / 0.76;
  object-fit: cover;
  transition: transform 0.45s ease;
}

/* FAQ */

.faq-section {
  background: var(--white);
}

.faq-grid {
  display: grid;
  grid-template-columns: 0.72fr 1fr;
  gap: 48px;
  align-items: start;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  border-radius: 22px;
  background: var(--bg-soft);
  border: 1px solid rgba(109, 183, 255, 0.22);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  min-height: 70px;
  padding: 0 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border: 0;
  background: transparent;
  color: var(--navy);
  text-align: left;
  font-weight: 900;
  cursor: pointer;
}

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

.faq-question b {
  flex: 0 0 auto;
  color: var(--primary-dark);
  font-size: 24px;
  transition: transform 0.25s ease;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.28s ease;
}

.faq-answer p {
  margin: 0;
  padding: 0 22px 22px;
  color: var(--muted);
  line-height: 1.68;
}

.faq-item.is-open .faq-answer {
  max-height: 180px;
}

.faq-item.is-open .faq-question b {
  transform: rotate(45deg);
}

/* CTA */

.cta-section {
  padding: 0 0 110px;
  background: var(--white);
}

.cta-box {
  padding: clamp(34px, 6vw, 64px);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.34), transparent 34%),
    linear-gradient(135deg, #7dc4ff, #2f8ff0);
  color: var(--white);
  box-shadow: var(--shadow-soft);
}

.cta-box p {
  margin: 0 0 12px;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.cta-box h2 {
  max-width: 780px;
  color: var(--white);
}

.cta-box a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  margin-top: 28px;
  padding: 0 24px;
  border-radius: 999px;
  background: var(--white);
  color: var(--primary-dark);
  font-weight: 900;
}

/* Footer */

.site-footer {
  padding: 76px 0 110px;
  background: var(--navy);
  color: var(--white);
  text-align: center;
}

.footer-inner h2 {
  margin: 0;
  font-size: 32px;
  letter-spacing: -0.05em;
}

.footer-inner p {
  margin: 16px 0 10px;
  color: rgba(255, 255, 255, 0.72);
}

.footer-inner a {
  display: inline-flex;
  margin-bottom: 24px;
  color: #9fd4ff;
  font-size: 24px;
  font-weight: 900;
}

.footer-inner small {
  display: block;
  color: rgba(255, 255, 255, 0.46);
}

/* Floating Call */

.floating-call {
  position: fixed;
  left: 50%;
  bottom: 14px;
  z-index: 90;
  width: min(520px, calc(100% - 28px));
  height: 60px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: linear-gradient(135deg, #7dc4ff, #2f8ff0);
  color: var(--white);
  font-size: 17px;
  font-weight: 900;
  box-shadow: 0 18px 44px rgba(47, 143, 240, 0.38);
}

/* Image Modal */

.image-modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(7, 17, 31, 0.86);
}

.image-modal.is-open {
  display: flex;
}

.image-modal img {
  width: min(920px, 100%);
  max-height: 82vh;
  object-fit: contain;
  border-radius: 22px;
}

.modal-close {
  position: absolute;
  top: 22px;
  right: 22px;
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 999px;
  background: var(--white);
  color: var(--navy);
  font-size: 30px;
  line-height: 1;
  cursor: pointer;
}

/* Scroll Reveal */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* PC Hover Only */

@media (hover: hover) and (pointer: fine) {
  .header-blog:hover,
  .cta-box a:hover {
    transform: translateY(-2px);
    opacity: 0.88;
  }

  .floating-call:hover {
    transform: translateX(-50%) translateY(-2px);
  }

  .service-card:hover,
  .process-card:hover,
  .point-list div:hover,
  .faq-item:hover {
    transform: translateY(-4px);
  }

  .service-card,
  .process-card,
  .point-list div,
  .faq-item,
  .header-blog,
  .cta-box a,
  .floating-call {
    transition:
      transform 0.25s ease,
      opacity 0.25s ease,
      box-shadow 0.25s ease;
  }

  .work-item:hover img {
    transform: scale(1.06);
  }
}

/* Tablet */

@media (max-width: 1024px) {
  .service-grid,
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .intro-grid,
  .point-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .point-image {
    order: 2;
  }

  .point-text {
    order: 1;
  }
}

/* Mobile */

@media (max-width: 768px) {
  body {
    padding-bottom: 0;
  }

  .container {
    width: min(100% - 28px, 1120px);
  }

  .header-inner {
    width: min(100% - 24px, 1180px);
    height: 66px;
  }

  .logo-text {
    font-size: 21px;
  }

  .header-blog {
    min-height: 38px;
    padding: 0 14px;
    font-size: 13px;
  }

  .hero {
    min-height: 92svh;
  }

  .hero-bg {
    background:
      linear-gradient(180deg, rgba(245, 249, 255, 0.97) 0%, rgba(245, 249, 255, 0.84) 55%, rgba(245, 249, 255, 0.5) 100%),
      url("https://picsum.photos/seed/youngtv-hero-mobile/900/1200") center / cover no-repeat;
  }

  .hero-content {
    padding-top: 90px;
  }

  .hero h1 {
    font-size: clamp(44px, 13vw, 66px);
  }

  .hero-desc {
    font-size: 17px;
  }

  .hero-badges {
    gap: 8px;
  }

  .hero-badges span {
    min-height: 38px;
    font-size: 13px;
  }

  .info-band-inner {
    min-height: auto;
    padding: 18px 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 9px;
  }

  .section {
    padding: 78px 0;
  }

  .section-head {
    margin-bottom: 34px;
  }

  .section-head h2,
  .intro-text h2,
  .point-text h2,
  .faq-title h2,
  .cta-box h2 {
    font-size: 34px;
  }

  .section-head p:not(.section-label),
  .intro-text p:not(.section-label),
  .faq-title p {
    font-size: 16px;
  }

  .service-grid,
  .process-grid,
  .works-grid {
    grid-template-columns: 1fr;
  }

  .process-card {
    min-height: 230px;
  }

  .process-card h3 {
    margin-top: 34px;
  }

  .faq-question {
    min-height: 64px;
    padding: 0 18px;
  }

  .faq-question span {
    font-size: 16px;
  }

  .faq-answer p {
    padding: 0 18px 20px;
  }

  .cta-section {
    padding-bottom: 78px;
  }

  .floating-call {
    height: 58px;
    bottom: 12px;
    font-size: 16px;
  }
}

/* Small Mobile */

@media (max-width: 420px) {
  .logo-text {
    font-size: 20px;
  }

  .header-blog {
    min-height: 36px;
    padding: 0 12px;
    font-size: 12px;
  }

  .hero-label {
    font-size: 11px;
    letter-spacing: 0.08em;
  }

  .hero h1 {
    font-size: 43px;
  }

  .service-body {
    padding: 22px;
  }

  .point-list div {
    padding: 20px;
  }
}