:root {
  color-scheme: light;
  --ink: #182235;
  --navy: #12233f;
  --blue: #355c91;
  --blue-dark: #2e507f;
  --muted: #687386;
  --line: #e7eaf0;
  --surface: #f7f8fa;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans KR", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 82px;
}

body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-size: 15px;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

.container {
  width: min(1100px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  background: rgb(247 248 250 / 94%);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--navy);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -.5px;
  white-space: nowrap;
}

.brand img {
  display: block;
  border-radius: 10px;
  object-fit: cover;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  color: #667085;
  font-size: 14px;
  font-weight: 600;
}

.site-nav>a:not(.nav-download):hover {
  color: var(--blue);
}

.nav-download {
  padding: 11px 17px;
  border-radius: 9px;
  color: #fff;
  background: var(--blue);
}

.nav-download:hover,
.button-primary:hover {
  background: var(--blue-dark);
}

.menu-toggle {
  display: none;
}

.hero {
  overflow: hidden;
  padding: 72px 0 78px;
  background: var(--surface);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(360px, .9fr);
  align-items: center;
  gap: 64px;
}

.hero-copy {
  padding: 22px 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .35px;
}

.eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #5482bd;
  box-shadow: 0 0 0 4px #e2ebf7;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

.hero h1 {
  margin: 22px 0 18px;
  color: var(--navy);
  font-size: clamp(38px, 5vw, 58px);
  line-height: 1.22;
  letter-spacing: -2.5px;
}

.hero h1 span {
  color: var(--blue);
}

.hero-description {
  max-width: 560px;
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 29px;
}

.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 19px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  transition: background .16s, border-color .16s, transform .16s;
}

.button:active {
  transform: translateY(1px);
}

.button-primary {
  color: white;
  background: var(--blue);
}

.button-primary svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.button-secondary {
  color: #344054;
  background: #fff;
  border-color: #d9dee7;
}

.button-secondary:hover {
  border-color: #9aacc4;
  background: #fdfefe;
}

.hero-note {
  margin: 20px 0 0;
  color: #8a94a6;
  font-size: 12px;
}

.product-visual {
  min-height: 480px;
  position: relative;
  display: grid;
  place-items: center;
}

.visual-glow {
  position: absolute;
  width: 390px;
  height: 390px;
  border-radius: 50%;
  background: radial-gradient(circle, #e7eef8 0, #edf2f9 48%, rgb(237 242 249 / 0%) 72%);
}

.image-frame-window {
  z-index: 1;
  width: min(100%, 285px);
  aspect-ratio: 1080 / 2178;
  overflow: hidden;
  border: 1px solid rgb(18 35 63 / 8%);
  border-radius: 34px;
  background: #fff;
  box-shadow: 0 28px 65px rgb(18 35 63 / 17%);
}

.image-reel-track {
  width: 600%;
  height: 100%;
  display: flex;
  animation: image-reel 40s linear infinite;
  will-change: transform;
}

.image-reel-frame {
  height: 100%;
  flex: 0 0 16.666667%;
  padding: 8px;
}

.image-reel-frame img {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 25px;
  object-fit: contain;
}

@keyframes image-reel {
  to {
    transform: translateX(-83.333333%);
  }
}

.visual-caption {
  z-index: 2;
  position: absolute;
  right: 0;
  bottom: 44px;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 13px 16px;
  border: 1px solid #e7eaf0;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 12px 30px rgb(18 35 63 / 9%);
}

.caption-mark {
  width: 27px;
  height: 27px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--blue);
  background: #eaf1fa;
  font-weight: 800;
}

.visual-caption>span:last-child {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.visual-caption strong {
  color: #344054;
  font-size: 10px;
}

.visual-caption small {
  color: #8a94a6;
  font-size: 9px;
}

.format-strip {
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.format-inner {
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 42px;
}

.format-intro {
  color: #8a94a6;
  font-size: 12px;
}

.format-item {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: #46536a;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

.format-item img {
  width: 30px;
  height: 34px;
  display: block;
  flex: 0 0 auto;
  object-fit: contain;
}

.showcase-section {
  background: #f7f8fa;
}

.screenshots-carousel {
  overflow-x: auto;
  margin: 39px 0;
  padding: 4px 2px 16px;
  cursor: grab;
  overscroll-behavior-x: contain;
  scrollbar-color: #b8c7d9 transparent;
  scrollbar-width: thin;
  touch-action: pan-x pan-y;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
}

.screenshots-carousel:active {
  cursor: grabbing;
}

.screenshots-track {
  width: max-content;
  display: flex;
  gap: 18px;
}

.screenshot-slide {
  width: clamp(210px, 25vw, 285px);
  flex: 0 0 auto;
  margin: 0;
  padding: 12px;
  border: 1px solid #e5e9ef;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 8px 24px rgb(18 35 63 / 6%);
  scroll-snap-align: start;
}

.screenshots-carousel.is-dragging {
  cursor: grabbing;
  user-select: none;
}

.screenshot-slide img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 11px;
  object-fit: contain;
  user-select: none;
  -webkit-user-drag: none;
}

.screenshot-slide figcaption {
  padding: 11px 2px 1px;
  color: #46536a;
  font-size: 11px;
  font-weight: 600;
}

.showcase-note {
  margin: 8px 0 0;
  color: #8a94a6;
  font-size: 10px;
  text-align: center;
}

.section {
  padding: 92px 0;
}

.section-heading {
  max-width: 690px;
  margin: 0 auto;
  text-align: center;
}

.section-kicker {
  color: #6c86a8;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1.6px;
}

.section-heading h2 {
  margin: 11px 0 10px;
  color: var(--navy);
  font-size: clamp(27px, 4vw, 36px);
  line-height: 1.3;
  letter-spacing: -1.2px;
}

.section-heading p {
  margin: 0;
  color: #7a8494;
  font-size: 14px;
  line-height: 1.8;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 15px;
  margin-top: 43px;
}

.feature-card {
  min-height: 206px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}

.feature-icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: #eaf1fa;
  color: var(--blue);
  font-size: 19px;
  font-weight: 700;
}

.icon-file {
  font-size: 9px;
}

.feature-card h3 {
  margin: 18px 0 8px;
  color: #24334b;
  font-size: 16px;
  letter-spacing: -.3px;
}

.feature-card p {
  margin: 0;
  color: #7a8494;
  font-size: 12px;
  line-height: 1.8;
}

.feature-card-wide {
  grid-column: 1 / -1;
  min-height: 120px;
  display: flex;
  align-items: center;
  gap: 20px;
  background: #f7f9fc;
}

.feature-card-wide .feature-icon {
  flex: 0 0 42px;
}

.feature-card-wide>div {
  flex: 1;
}

.feature-card-wide h3 {
  margin-top: 0;
}

.privacy-tag {
  padding: 8px 11px;
  border: 1px solid #d9e4f2;
  border-radius: 20px;
  color: var(--blue);
  background: #fff;
  font-size: 10px;
  font-weight: 700;
  white-space: nowrap;
}

.how-section {
  background: var(--navy);
}

.section-heading-light h2 {
  color: #fff;
}

.section-heading-light p {
  color: #b9c3d1;
}

.section-heading-light .section-kicker {
  color: #8eb3e0;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 43px;
}

.step-card {
  min-height: 160px;
  padding: 22px 19px;
  border: 1px solid rgb(255 255 255 / 8%);
  border-radius: 13px;
  background: rgb(255 255 255 / 6%);
}

.step-number {
  color: #8eb3e0;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
}

.step-card h3 {
  margin: 21px 0 7px;
  color: white;
  font-size: 15px;
}

.step-card p {
  margin: 0;
  color: #b9c3d1;
  font-size: 11px;
  line-height: 1.75;
}

.how-note {
  margin: 22px 0 0;
  color: #9eafc4;
  font-size: 11px;
  text-align: center;
}

.download-section {
  padding: 58px 0;
  background: #f7f8fa;
}

.download-panel {
  min-height: 160px;
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 25px 31px;
  border: 1px solid #e4eaf2;
  border-radius: 18px;
  background: #fff;
}

.download-panel>img {
  flex: 0 0 72px;
  border-radius: 17px;
}

.download-copy {
  flex: 1;
}

.download-copy h2 {
  margin: 6px 0;
  color: var(--navy);
  font-size: 20px;
  letter-spacing: -.5px;
}

.download-copy p {
  margin: 0;
  color: #7a8494;
  font-size: 12px;
}

.download-panel .button {
  flex: 0 0 auto;
}

.feedback-section {
  background: #fff;
}

.feedback-form {
  max-width: 680px;
  display: grid;
  gap: 17px;
  margin: 38px auto 0;
  padding: 28px;
  border: 1px solid #e4eaf2;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 14px 36px rgb(18 35 63 / 5%);
}

.form-field {
  display: grid;
  gap: 8px;
  color: #344054;
  font-size: 12px;
  font-weight: 700;
}

.form-field small {
  color: #98a2b3;
  font-size: 11px;
  font-weight: 400;
}

.form-field select,
.form-field input,
.form-field textarea {
  width: 100%;
  min-height: 46px;
  padding: 11px 13px;
  border: 1px solid #d9dee7;
  border-radius: 9px;
  outline: none;
  color: #344054;
  background: #fff;
  font: inherit;
  font-size: 13px;
}

.form-field textarea {
  min-height: 130px;
  resize: vertical;
  line-height: 1.7;
}

.form-field select:focus,
.form-field input:focus,
.form-field textarea:focus {
  border-color: #7698c0;
  box-shadow: 0 0 0 3px rgb(53 92 145 / 10%);
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: #a0a8b5;
  font-weight: 400;
}

.feedback-submit {
  width: 100%;
  border: 0;
  cursor: pointer;
}

.feedback-note {
  margin: -5px 0 0;
  color: #8a94a6;
  font-size: 11px;
  line-height: 1.7;
  text-align: center;
}

.site-footer {
  padding: 32px 0 22px;
  border-top: 1px solid var(--line);
  background: #fff;
}

.footer-brand {
  font-size: 16px;
}

.footer-brand img {
  border-radius: 8px;
}

.footer-description {
  margin: 12px 0 26px;
  color: #7a8494;
  font-size: 12px;
}

.footer-description a {
  color: var(--blue);
}

.footer-description a:hover {
  text-decoration: underline;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 15px;
  padding-top: 17px;
  border-top: 1px solid #edf0f4;
  color: #98a2b3;
  font-size: 10px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.footer-links a:hover {
  color: var(--blue);
}

@media (max-width: 820px) {
  .container {
    width: min(100% - 40px, 650px);
  }

  .header-inner {
    min-height: 64px;
  }

  .brand {
    font-size: 17px;
  }

  .brand img {
    width: 34px;
    height: 34px;
  }

  .menu-toggle {
    width: 42px;
    height: 42px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    border: 1px solid #e1e5eb;
    border-radius: 10px;
    background: #fff;
  }

  .menu-toggle span {
    width: 17px;
    height: 2px;
    border-radius: 2px;
    background: #344054;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 1px);
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 20px 16px;
    border-bottom: 1px solid var(--line);
    background: #f7f8fa;
    box-shadow: 0 10px 18px rgb(18 35 63 / 6%);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav>a:not(.nav-download) {
    padding: 13px 2px;
  }

  .nav-download {
    margin-top: 7px;
    text-align: center;
  }

  .hero {
    padding: 48px 0 52px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .hero-copy {
    padding: 0;
    text-align: center;
  }

  .hero-description {
    max-width: 560px;
    margin: 0 auto;
    font-size: 15px;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-note {
    margin-top: 15px;
  }

  .product-visual {
    min-height: 440px;
  }

  .visual-caption {
    right: max(0px, calc((100% - 390px) / 2));
    bottom: 13px;
  }

  .format-inner {
    min-height: 76px;
    gap: 23px;
    flex-wrap: wrap;
    padding-top: 15px;
    padding-bottom: 15px;
  }

  .format-intro {
    flex-basis: 100%;
    text-align: center;
  }

  .section {
    padding: 70px 0;
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 32px;
  }

  .feature-card-wide {
    grid-column: 1 / -1;
  }

  .steps-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 32px;
  }

  .download-section {
    padding: 38px 0;
  }
}

@media (max-width: 520px) {
  html {
    scroll-padding-top: 68px;
  }

  .container {
    width: calc(100% - 36px);
  }

  .hero {
    padding: 40px 0 43px;
  }

  .eyebrow {
    font-size: 10px;
  }

  .hero h1 {
    margin: 18px 0 13px;
    font-size: clamp(32px, 9vw, 42px);
    letter-spacing: -1.7px;
  }

  .hero-description {
    font-size: 14px;
    line-height: 1.8;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 9px;
    margin-top: 23px;
  }

  .button {
    min-height: 48px;
  }

  .button-secondary {
    background: transparent;
  }

  .product-visual {
    min-height: 340px;
    margin: -2px -4px 0;
  }

  .visual-glow {
    width: 300px;
    height: 300px;
  }

  .image-frame-window {
    width: min(100%, 285px);
    border-radius: 27px;
  }

  .image-reel-frame {
    padding: 6px;
  }

  .image-reel-frame img {
    border-radius: 20px;
  }

  .visual-caption {
    right: 0;
    bottom: 0;
    gap: 8px;
    padding: 10px 11px;
  }

  .caption-mark {
    width: 24px;
    height: 24px;
  }

  .visual-caption strong {
    font-size: 9px;
  }

  .visual-caption small {
    font-size: 8px;
  }

  .format-inner {
    justify-content: space-around;
    gap: 11px 14px;
  }

  .format-intro {
    font-size: 11px;
  }

  .format-item {
    gap: 6px;
    font-size: 10px;
  }

  .format-item img {
    width: 25px;
    height: 29px;
  }

  .section {
    padding: 58px 0;
  }

  .screenshots-carousel {
    margin-top: 26px;
  }

  .screenshots-track {
    gap: 12px;
  }

  .screenshot-slide {
    width: min(72vw, 285px);
    padding: 9px;
  }

  .section-heading h2 {
    font-size: 27px;
  }

  .section-heading p {
    font-size: 12px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
    gap: 10px;
    margin-top: 26px;
  }

  .feature-card {
    min-height: auto;
    padding: 19px;
  }

  .feature-card h3 {
    margin-top: 14px;
    font-size: 15px;
  }

  .feature-card p {
    font-size: 12px;
  }

  .feature-card-wide {
    display: grid;
    grid-template-columns: 42px 1fr;
    gap: 10px 13px;
  }

  .feature-card-wide .feature-icon {
    grid-row: span 2;
  }

  .feature-card-wide h3 {
    margin: 1px 0 6px;
  }

  .privacy-tag {
    grid-column: 2;
    justify-self: start;
  }

  .steps-grid {
    gap: 9px;
    margin-top: 25px;
  }

  .step-card {
    min-height: 145px;
    padding: 17px 14px;
  }

  .step-card h3 {
    margin-top: 18px;
    font-size: 13px;
  }

  .step-card p {
    font-size: 10px;
  }

  .how-note {
    font-size: 10px;
    line-height: 1.7;
  }

  .download-section {
    padding: 30px 0;
  }

  .download-panel {
    display: grid;
    grid-template-columns: 52px 1fr;
    gap: 13px;
    padding: 20px 17px;
  }

  .download-panel>img {
    width: 52px;
    height: 52px;
    border-radius: 13px;
  }

  .download-copy h2 {
    font-size: 16px;
    line-height: 1.5;
  }

  .download-copy p {
    font-size: 11px;
    line-height: 1.6;
  }

  .download-panel .button {
    grid-column: 1 / -1;
    width: 100%;
  }

  .feedback-form {
    gap: 14px;
    margin-top: 25px;
    padding: 19px 16px;
  }

  .feedback-note {
    font-size: 10px;
  }

  .footer-description {
    line-height: 1.7;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
  }

  .footer-links {
    gap: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: .01ms !important;
  }

}