:root {
  --navy: #002d62;
  --navy-deep: #00193c;
  --gold: #fddc90;
  --green: #1f7a4d;
  --mint: #dff5e8;
  --bg: #f8f9ff;
  --surface: #eef2fb;
  --card: #ffffff;
  --text: #181c22;
  --muted: #58606f;
  --light: #747b88;
  --line: #d9deeb;
  --shadow: 0 18px 48px rgba(0, 25, 60, 0.12);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  line-break: strict;
  hyphens: none;
  overflow-x: hidden;
  overflow-wrap: break-word;
  word-break: keep-all;
}

a {
  color: inherit;
}

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

.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 30;
  background: rgba(248, 249, 255, 0.88);
  border-bottom: 1px solid rgba(217, 222, 235, 0.8);
  backdrop-filter: blur(18px);
}

.nav-inner {
  align-items: center;
  display: flex;
  gap: 24px;
  height: 72px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1180px;
  padding: 0 24px;
}

.brand {
  align-items: center;
  color: var(--navy-deep);
  display: inline-flex;
  font-size: 20px;
  font-weight: 900;
  gap: 10px;
  text-decoration: none;
  white-space: nowrap;
}

.brand-logo {
  border-radius: 10px;
  height: 38px;
  object-fit: cover;
  width: 38px;
}

.nav-links {
  align-items: center;
  display: flex;
  gap: 28px;
}

.nav-links a,
.footer nav a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.nav-links a:hover,
.footer nav a:hover {
  color: var(--navy);
}

.lang-switcher,
.mobile-lang-switcher {
  align-items: center;
  display: inline-flex;
  gap: 6px;
}

.lang-switcher button,
.mobile-lang-switcher button {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(217, 222, 235, 0.95);
  border-radius: 999px;
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
  font-weight: 900;
  min-height: 34px;
  min-width: 42px;
  padding: 0 10px;
}

.lang-switcher button.active,
.mobile-lang-switcher button.active {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}

.mobile-lang-switcher {
  margin-bottom: 8px;
  padding-top: 8px;
}

.nav-cta,
.btn {
  align-items: center;
  border-radius: 14px;
  display: inline-flex;
  font-size: 15px;
  font-weight: 900;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.nav-cta,
.btn-primary {
  background: var(--navy);
  color: #fff;
  box-shadow: 0 12px 28px rgba(0, 45, 98, 0.2);
}

.nav-cta:hover,
.btn:hover {
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.48);
  color: #fff;
}

.btn-dark {
  background: var(--navy-deep);
  color: #fff;
}

.nav-mobile-btn {
  background: transparent;
  border: 0;
  display: none;
  height: 40px;
  width: 40px;
}

.nav-mobile-btn span {
  background: var(--navy);
  border-radius: 999px;
  display: block;
  height: 2px;
  margin: 7px auto;
  width: 24px;
}

.nav-mobile-menu {
  background: rgba(248, 249, 255, 0.98);
  border-bottom: 1px solid var(--line);
  display: none;
  padding: 10px 24px 18px;
}

.nav-mobile-menu.open {
  display: block;
}

.nav-mobile-menu a {
  color: var(--navy);
  display: block;
  font-weight: 800;
  padding: 12px 0;
  text-decoration: none;
}

.hero {
  min-height: 92vh;
  overflow: hidden;
  padding-top: 72px;
  position: relative;
}

.hero-media,
.hero-overlay {
  inset: 0;
  position: absolute;
}

.hero-media img {
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(0, 25, 60, 0.92), rgba(0, 45, 98, 0.72) 48%, rgba(0, 25, 60, 0.2)),
    linear-gradient(0deg, rgba(0, 25, 60, 0.18), rgba(0, 25, 60, 0.18));
}

.hero-inner {
  align-items: center;
  display: grid;
  gap: 56px;
  grid-template-columns: 1.05fr 0.95fr;
  margin: 0 auto;
  max-width: 1180px;
  min-height: calc(92vh - 72px);
  padding: 56px 24px;
  position: relative;
  z-index: 1;
}

.eyebrow,
.section-label {
  color: var(--gold);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  color: #fff;
  font-size: clamp(42px, 6vw, 72px);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.08;
  margin-top: 16px;
}

.hero-subtitle {
  color: rgba(255, 255, 255, 0.86);
  font-size: 18px;
  font-weight: 500;
  margin-top: 22px;
  max-width: 620px;
  text-wrap: pretty;
}

.hero-download-panel {
  align-items: flex-start;
  display: inline-flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 30px;
}

.hero-play-cta,
.download-play-cta {
  align-items: center;
  background: var(--gold);
  border: 1px solid rgba(253, 220, 144, 0.92);
  border-radius: 14px;
  box-shadow: 0 18px 42px rgba(0, 25, 60, 0.22);
  color: var(--navy-deep);
  display: flex;
  font-size: 16px;
  font-weight: 900;
  justify-content: center;
  min-height: 56px;
  min-width: 248px;
  padding: 0 24px;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
  white-space: nowrap;
}

.hero-play-cta:hover,
.download-play-cta:hover {
  box-shadow: 0 22px 52px rgba(0, 25, 60, 0.28);
  transform: translateY(-1px);
}

.hero-store-note {
  color: rgba(255, 255, 255, 0.74);
  font-size: 13px;
  font-weight: 800;
  margin: 0;
}

.hero-feature-link {
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}

.hero-feature-link:hover {
  color: #fff;
}

.hero-card {
  align-items: center;
  display: flex;
  justify-content: center;
  min-height: 600px;
  position: relative;
}

.hero-app-shot {
  aspect-ratio: 9 / 18;
  border: 1px solid rgba(253, 220, 144, 0.18);
  border-radius: 34px;
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.38);
  height: min(600px, 72vh);
  object-fit: cover;
  object-position: center;
  width: auto;
}

.section {
  margin: 0 auto;
  max-width: 1180px;
  padding: 96px 24px;
}

.section-heading {
  max-width: 680px;
}

.section-heading.centered {
  margin: 0 auto;
  text-align: center;
}

.section-heading h2,
.flow-copy h2,
.pros-panel h2,
.download h2 {
  color: var(--navy-deep);
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.18;
  margin-top: 12px;
}

.section-heading p:not(.section-label),
.flow-copy p:not(.section-label),
.pros-panel p,
.download p {
  color: var(--muted);
  font-size: 17px;
  font-weight: 500;
  margin-top: 14px;
  text-wrap: pretty;
}

.easy-grid,
.intro-grid {
  display: grid;
  gap: 18px;
  margin-top: 42px;
}

.easy-grid {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.intro-grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.easy-grid article {
  background: var(--card);
  border: 1px solid rgba(217, 222, 235, 0.9);
  border-radius: 18px;
  box-shadow: 0 12px 34px rgba(0, 25, 60, 0.06);
  padding: 24px;
  min-width: 0;
}

.easy-grid span {
  align-items: center;
  background: var(--navy);
  border-radius: 50%;
  color: #fff;
  display: inline-flex;
  font-size: 14px;
  font-weight: 900;
  height: 34px;
  justify-content: center;
  width: 34px;
}

.easy-grid h3 {
  color: var(--navy-deep);
  font-size: 19px;
  font-weight: 900;
  margin-top: 18px;
  text-wrap: balance;
}

.easy-grid p {
  color: var(--muted);
  font-size: 14px;
  margin-top: 8px;
}

.intro-grid article,
.feature-card,
.flow-list article,
.pros-points article {
  background: var(--card);
  border: 1px solid rgba(217, 222, 235, 0.9);
  border-radius: 18px;
  box-shadow: 0 12px 34px rgba(0, 25, 60, 0.06);
  min-width: 0;
}

.intro-grid article {
  padding: 26px;
}

.intro-practice-card {
  background:
    linear-gradient(135deg, rgba(255, 216, 125, 0.18), rgba(43, 209, 126, 0.12)),
    var(--card);
}

.intro-grid strong {
  color: var(--green);
  font-size: 13px;
  font-weight: 900;
}

.intro-grid h3,
.feature-card h3,
.flow-list h3,
.pros-points h3 {
  color: var(--navy-deep);
  font-size: 20px;
  font-weight: 900;
  margin-top: 8px;
  text-wrap: balance;
}

.intro-grid p,
.feature-card p,
.flow-list p,
.pros-points p {
  color: var(--muted);
  font-size: 14px;
  margin-top: 8px;
  text-wrap: pretty;
}

.practice-flow {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.practice-flow-lead {
  background: rgba(0, 25, 60, 0.06);
  border-left: 4px solid var(--green);
  border-radius: 12px;
  color: var(--navy-deep);
  font-size: 17px;
  font-weight: 900;
  line-height: 1.55;
  margin-top: 12px;
  padding: 14px 16px;
}

.practice-flow-note {
  background: rgba(255, 216, 125, 0.28);
  border: 1px solid rgba(255, 184, 40, 0.38);
  border-radius: 999px;
  color: var(--navy-deep);
  display: block;
  font-size: 13px;
  font-weight: 900;
  line-height: 1.45;
  margin-top: 12px;
  padding: 10px 14px;
}

.practice-flow-step {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(217, 222, 235, 0.92);
  border-radius: 14px;
  padding: 16px;
}

.practice-flow-step span {
  color: var(--navy-deep);
  display: block;
  font-size: 16px;
  font-weight: 900;
}

.practice-flow-step p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
  margin-top: 5px;
}

.practice-flow-step--active {
  border-color: rgba(43, 209, 126, 0.45);
  box-shadow: 0 12px 28px rgba(43, 209, 126, 0.13);
}

.practice-flow-arrow {
  background: var(--green);
  border-radius: 999px;
  height: 18px;
  margin-left: 21px;
  position: relative;
  width: 2px;
}

.practice-flow-arrow::after {
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 7px solid var(--green);
  bottom: -4px;
  content: "";
  left: 50%;
  position: absolute;
  transform: translateX(-50%);
}

.feature-section {
  max-width: none;
  padding-left: 0;
  padding-right: 0;
}

.feature-section > .section-heading,
.feature-grid {
  margin-left: auto;
  margin-right: auto;
  max-width: 1180px;
  padding-left: 24px;
  padding-right: 24px;
}

.feature-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 46px;
}

.feature-card {
  overflow: hidden;
}

.feature-card img {
  background: var(--surface);
  height: clamp(320px, 32vw, 420px);
  object-fit: contain;
  object-position: center top;
  width: 100%;
}

.feature-card div {
  padding: 20px;
}

.benefits-section {
  padding-top: 42px;
}

.benefit-list {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, 1fr);
  margin-top: 42px;
}

.benefit-list article {
  background: linear-gradient(135deg, #fff, #f3f7ff);
  border: 1px solid rgba(217, 222, 235, 0.95);
  border-radius: 18px;
  padding: 26px;
}

.benefit-list h3 {
  color: var(--navy-deep);
  font-size: 20px;
  font-weight: 900;
  text-wrap: balance;
}

.benefit-list p {
  color: var(--muted);
  font-size: 15px;
  margin-top: 10px;
  text-wrap: pretty;
}

.manual-section {
  padding-top: 44px;
}

.manual-grid,
.faq-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(2, 1fr);
  margin-top: 42px;
}

.manual-grid article,
.faq-grid article {
  background: #fff;
  border: 1px solid rgba(217, 222, 235, 0.95);
  border-radius: 18px;
  box-shadow: 0 12px 34px rgba(0, 25, 60, 0.05);
  padding: 26px;
}

.manual-grid h3,
.faq-grid h3 {
  color: var(--navy-deep);
  font-size: 20px;
  font-weight: 900;
  text-wrap: balance;
}

.manual-grid ul {
  color: var(--muted);
  font-size: 15px;
  margin-top: 14px;
  padding-left: 20px;
  text-wrap: pretty;
}

.manual-grid li + li {
  margin-top: 8px;
}

.faq-section {
  padding-top: 42px;
}

.faq-grid p {
  color: var(--muted);
  font-size: 15px;
  margin-top: 10px;
  text-wrap: pretty;
}

.flow-section {
  align-items: center;
  display: grid;
  gap: 52px;
  grid-template-columns: 0.95fr 1.05fr;
}

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

.flow-list article {
  align-items: flex-start;
  display: flex;
  gap: 16px;
  padding: 20px;
}

.flow-list span {
  align-items: center;
  background: var(--mint);
  border-radius: 50%;
  color: var(--green);
  display: inline-flex;
  flex: 0 0 auto;
  font-weight: 900;
  height: 38px;
  justify-content: center;
  width: 38px;
}

.pros-section {
  padding-top: 48px;
}

.pros-panel {
  background:
    linear-gradient(135deg, rgba(0, 45, 98, 0.96), rgba(31, 122, 77, 0.9)),
    var(--navy);
  border-radius: 28px;
  color: #fff;
  display: grid;
  gap: 38px;
  grid-template-columns: 0.9fr 1.1fr;
  padding: 48px;
}

.pros-panel h2,
.pros-panel .section-label,
.pros-panel p {
  color: #fff;
}

.pros-panel p {
  color: rgba(255, 255, 255, 0.82);
}

.pros-points {
  display: grid;
  gap: 14px;
}

.pros-points article {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.16);
  box-shadow: none;
  padding: 22px;
}

.pros-points h3 {
  color: #fff;
}

.pros-points p {
  color: rgba(255, 255, 255, 0.78);
}

.download {
  background: var(--gold);
  margin-top: 48px;
  padding: 80px 24px;
  text-align: center;
}

.download-inner {
  margin: 0 auto;
  max-width: 760px;
}

.download-icon {
  border-radius: 24px;
  box-shadow: 0 18px 46px rgba(0, 25, 60, 0.2);
  height: 112px;
  margin: 0 auto 24px;
  object-fit: cover;
  width: 112px;
}

.download .section-label,
.download h2 {
  color: var(--navy-deep);
}

.download .btn {
  margin-top: 28px;
}

.download-actions {
  align-items: center;
  display: inline-flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 28px;
}

.download-play-cta {
  background: var(--navy-deep);
  border-color: var(--navy-deep);
  color: #fff;
}

.download-store-note {
  color: var(--navy-deep);
  font-size: 13px;
  font-weight: 800;
}

.policy-section {
  padding-top: 72px;
}

.policy-links {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 38px;
}

.policy-links a {
  background: #fff;
  border: 1px solid rgba(217, 222, 235, 0.95);
  border-radius: 18px;
  box-shadow: 0 12px 34px rgba(0, 25, 60, 0.05);
  padding: 24px;
  text-decoration: none;
}

.policy-links strong {
  color: var(--navy-deep);
  display: block;
  font-size: 18px;
  font-weight: 900;
  text-wrap: balance;
}

.policy-links span {
  color: var(--muted);
  display: block;
  font-size: 14px;
  margin-top: 8px;
  text-wrap: pretty;
}

.release-checklist {
  background: linear-gradient(135deg, #fff, #f3f7ff);
  border: 1px solid rgba(217, 222, 235, 0.95);
  border-radius: 20px;
  margin-top: 18px;
  padding: 28px;
}

.release-checklist h3 {
  color: var(--navy-deep);
  font-size: 22px;
  font-weight: 900;
}

.release-checklist ul {
  color: var(--muted);
  font-size: 15px;
  margin-top: 16px;
  padding-left: 20px;
  text-wrap: pretty;
}

.release-checklist li + li {
  margin-top: 9px;
}

.footer {
  background: #fff;
  border-top: 1px solid var(--line);
  padding: 42px 24px 30px;
}

.footer-inner {
  display: flex;
  gap: 24px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1180px;
}

.footer p {
  color: var(--light);
  font-size: 13px;
  margin-top: 10px;
}

.footer nav {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: flex-end;
}

.copyright {
  margin: 28px auto 0;
  max-width: 1180px;
}

@media (max-width: 900px) {
  .nav-links,
  .lang-switcher,
  .nav-cta {
    display: none;
  }

  .nav-mobile-btn {
    display: block;
  }

  .hero-inner,
  .flow-section,
  .pros-panel {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    gap: 20px;
    padding-bottom: 28px;
    text-align: left;
  }

  .hero-download-panel {
    width: 100%;
  }

  .hero-card {
    min-height: 500px;
  }

  .hero-app-shot {
    height: min(500px, 62vh);
  }

  .easy-grid,
  .intro-grid,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .benefit-list {
    grid-template-columns: 1fr;
  }

  .manual-grid,
  .faq-grid,
  .policy-links {
    grid-template-columns: 1fr;
  }

  .feature-card {
    display: grid;
    grid-template-columns: 128px 1fr;
  }

  .feature-card img {
    height: 260px;
    min-height: 0;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer nav {
    justify-content: flex-start;
  }
}

@media (max-width: 560px) {
  .nav-inner {
    height: 64px;
    padding: 0 18px;
  }

  .brand {
    font-size: 18px;
  }

  .brand-logo {
    height: 34px;
    width: 34px;
  }

  .hero {
    min-height: auto;
    padding-top: 64px;
  }

  .hero-inner {
    min-height: auto;
    padding: 42px 20px 30px;
  }

  .hero h1 {
    font-size: 36px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .hero-play-cta,
  .download-play-cta {
    min-width: 0;
    width: 100%;
  }

  .hero-card {
    min-height: 430px;
  }

  .hero-app-shot {
    border-radius: 28px;
    height: min(430px, 58vh);
    max-width: 86vw;
  }

  .section {
    padding: 68px 20px;
  }

  .section-heading h2,
  .flow-copy h2,
  .pros-panel h2,
  .download h2 {
    font-size: 30px;
  }

  .section-heading p:not(.section-label),
  .flow-copy p:not(.section-label),
  .pros-panel p,
  .download p {
    font-size: 16px;
  }

  .easy-grid article,
  .manual-grid article,
  .faq-grid article,
  .benefit-list article,
  .policy-links a {
    padding: 22px;
  }

  .feature-section > .section-heading,
  .feature-grid {
    padding-left: 20px;
    padding-right: 20px;
  }

  .feature-card {
    grid-template-columns: 1fr;
  }

  .feature-card img {
    height: 360px;
  }

  .pros-panel {
    border-radius: 22px;
    padding: 28px;
  }
}