:root {
  --bg: #05090f;
  --bg-2: #07131b;
  --panel: rgba(9, 22, 32, 0.78);
  --panel-2: rgba(9, 45, 44, 0.55);
  --line: rgba(116, 224, 255, 0.22);
  --text: #f4f8fb;
  --muted: #a9bac5;
  --cyan: #72e9ff;
  --green: #4ef0aa;
  --blue: #73a8ff;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 20% 8%, rgba(108, 177, 0, 0.18), transparent 36rem),
    radial-gradient(circle at 82% 14%, rgba(61, 145, 255, 0.14), transparent 38rem),
    radial-gradient(circle at 55% 42%, rgba(32, 120, 76, 0.13), transparent 42rem),
    linear-gradient(180deg, #060b08 0%, var(--bg) 48%, #07140d 100%);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Noto Sans", "Noto Sans CJK SC", "Noto Sans KR", "Noto Sans JP", Arial, sans-serif;
  letter-spacing: 0;
}

.network-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.72;
  mix-blend-mode: screen;
}

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

button,
input,
textarea {
  font: inherit;
}

.site-shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  overflow: hidden;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.5rem;
  min-height: 76px;
  padding: 0.85rem clamp(1rem, 4vw, 3rem);
  border-bottom: 1px solid rgba(120, 210, 244, 0.12);
  background: rgba(2, 8, 13, 0.78);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  font-size: clamp(1.05rem, 2vw, 1.45rem);
  font-weight: 800;
  white-space: nowrap;
}

.brand-mark {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
}

.brand-mark span {
  position: absolute;
  width: 25px;
  height: 8px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--green), var(--cyan));
  box-shadow: 0 0 22px rgba(79, 239, 181, 0.5);
}

.brand-mark span:nth-child(1) {
  transform: translateY(-7px) rotate(58deg);
}

.brand-mark span:nth-child(2) {
  transform: translateY(7px) rotate(-58deg);
}

.brand-mark span:nth-child(3) {
  width: 18px;
  transform: translateX(10px);
  background: linear-gradient(90deg, var(--cyan), var(--blue));
}

.nav {
  display: flex;
  justify-content: center;
  gap: clamp(0.8rem, 2.6vw, 2.6rem);
  color: #dbe8ee;
  font-size: 0.95rem;
}

.nav a {
  position: relative;
  padding: 0.8rem 0;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.2rem;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: linear-gradient(90deg, var(--green), var(--cyan));
  transition: transform 180ms ease;
}

.nav a:hover::after {
  transform: scaleX(1);
}

.top-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
}

.language-switcher {
  display: flex;
  align-items: center;
  padding: 0.2rem;
  border: 1px solid rgba(126, 218, 255, 0.22);
  border-radius: 999px;
  background: rgba(3, 16, 23, 0.76);
}

.language-switcher button {
  min-width: 2.5rem;
  min-height: 2rem;
  padding: 0 0.55rem;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.78rem;
}

.language-switcher button.active {
  color: #00110d;
  background: linear-gradient(135deg, var(--green), var(--cyan));
  font-weight: 800;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 1.18rem;
  border-radius: 8px;
  border: 1px solid rgba(116, 224, 255, 0.5);
  color: var(--text);
  cursor: pointer;
  white-space: nowrap;
}

.button-primary {
  border: 0;
  color: #03140f;
  background: linear-gradient(135deg, var(--green), #67d9ff);
  box-shadow: 0 12px 28px rgba(43, 217, 167, 0.22);
  font-weight: 800;
}

.button-secondary {
  background: rgba(3, 19, 28, 0.72);
}

.section {
  width: min(100% - 2rem, 1480px);
  margin: 0 auto;
  padding: clamp(3rem, 7vw, 6.5rem) 0;
}

.hero {
  display: block;
  min-height: calc(100vh - 78px);
  padding-top: 1.35rem;
}

.hero-stage {
  position: relative;
  min-height: min(760px, calc(100vh - 110px));
  border: 1px solid rgba(116, 224, 255, 0.16);
  border-radius: 8px;
  background: #02070b;
  overflow: hidden;
  box-shadow: var(--shadow);
  --mx: 0px;
  --my: 0px;
}

.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center right;
  opacity: 0.9;
  transform: translate(calc(var(--mx) * -0.35), calc(var(--my) * -0.25)) scale(1.045);
  transition: transform 180ms ease-out;
  animation: heroDrift 14s ease-in-out infinite alternate;
  will-change: transform;
}

.hero-effects {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  pointer-events: none;
  mix-blend-mode: screen;
  opacity: 0.82;
}

.ai-core-glow {
  position: absolute;
  z-index: 1;
  left: 67.5%;
  top: 50.5%;
  width: clamp(80px, 12vw, 170px);
  aspect-ratio: 1;
  border-radius: 50%;
  transform: translate(-50%, -50%) translate(calc(var(--mx) * 0.18), calc(var(--my) * 0.18));
  background:
    radial-gradient(circle, rgba(118, 238, 255, 0.42) 0%, rgba(68, 202, 255, 0.18) 34%, transparent 68%),
    conic-gradient(from 0deg, transparent, rgba(76, 239, 170, 0.44), transparent, rgba(92, 205, 255, 0.5), transparent);
  filter: blur(0.2px);
  opacity: 0.82;
  animation: corePulse 2.8s ease-in-out infinite;
  pointer-events: none;
}

.ai-core-glow::before,
.ai-core-glow::after {
  content: "";
  position: absolute;
  inset: 16%;
  border: 1px solid rgba(114, 233, 255, 0.7);
  border-radius: 50%;
  animation: ringPulse 2.8s ease-out infinite;
}

.ai-core-glow::after {
  inset: -8%;
  animation-delay: 0.9s;
  opacity: 0.58;
}

.signal-dot {
  position: absolute;
  z-index: 2;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 18px rgba(78, 240, 170, 0.85), 0 0 42px rgba(114, 233, 255, 0.35);
  pointer-events: none;
  animation: signalBlink 2.4s ease-in-out infinite;
}

.dot-a { left: 58%; top: 31%; animation-delay: 0.1s; }
.dot-b { left: 81%; top: 39%; animation-delay: 0.7s; }
.dot-c { left: 73%; top: 65%; animation-delay: 1.2s; }
.dot-d { left: 49%; top: 56%; animation-delay: 1.8s; }

@keyframes heroDrift {
  from { filter: saturate(1.06) brightness(0.95); }
  to { filter: saturate(1.16) brightness(1.05); }
}

@keyframes corePulse {
  0%, 100% { opacity: 0.58; transform: translate(-50%, -50%) scale(0.92) translate(calc(var(--mx) * 0.18), calc(var(--my) * 0.18)); }
  50% { opacity: 0.95; transform: translate(-50%, -50%) scale(1.08) translate(calc(var(--mx) * 0.18), calc(var(--my) * 0.18)); }
}

@keyframes ringPulse {
  0% { transform: scale(0.72); opacity: 0.8; }
  100% { transform: scale(1.8); opacity: 0; }
}

@keyframes signalBlink {
  0%, 100% { transform: translateY(0) scale(0.8); opacity: 0.35; }
  50% { transform: translateY(-6px) scale(1.25); opacity: 1; }
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(2, 7, 10, 0.98) 0%, rgba(2, 7, 10, 0.86) 24%, rgba(2, 7, 10, 0.36) 48%, rgba(2, 7, 10, 0.1) 100%),
    linear-gradient(180deg, rgba(2, 7, 10, 0.05) 0%, rgba(2, 7, 10, 0.18) 58%, rgba(2, 7, 10, 0.7) 100%);
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--green);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 11ch;
  margin-bottom: 1.25rem;
  font-size: clamp(3rem, 6.2vw, 4.95rem);
  line-height: 0.95;
}

h2 {
  max-width: 16ch;
  margin-bottom: 1rem;
  font-size: clamp(2rem, 4.2vw, 4rem);
  line-height: 1.02;
}

h3 {
  margin-bottom: 0.55rem;
  font-size: clamp(1.05rem, 1.7vw, 1.32rem);
}

p {
  color: var(--muted);
  line-height: 1.6;
}

.hero-lede {
  max-width: 42rem;
  font-size: clamp(1rem, 1.8vw, 1.18rem);
}

.hero-copy {
  position: relative;
  z-index: 2;
  width: min(560px, 43vw);
  padding: clamp(2.2rem, 5vw, 4.7rem) clamp(1.3rem, 4vw, 3.2rem);
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin: 2rem 0;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
  margin-top: 0.9rem;
}

.proof-strip div {
  min-height: 90px;
  padding: 1rem;
  border: 1px solid rgba(116, 224, 255, 0.18);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(10, 34, 45, 0.75), rgba(6, 19, 27, 0.72));
}

.proof-strip strong {
  display: block;
  color: var(--green);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
}

.proof-strip span {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.35;
}

.scene-chip {
  position: absolute;
  z-index: 3;
  width: min(230px, 38vw);
  padding: 0.9rem 1rem;
  border: 1px solid rgba(116, 224, 255, 0.35);
  border-radius: 8px;
  background: rgba(5, 18, 29, 0.78);
  box-shadow: 0 14px 38px rgba(0, 0, 0, 0.32);
  backdrop-filter: blur(12px);
  transform: translate(calc(var(--mx) * 0.26), calc(var(--my) * 0.22));
  animation: chipFloat 4.8s ease-in-out infinite;
  will-change: transform;
}

.scene-chip strong {
  display: block;
  color: var(--cyan);
  line-height: 1.25;
}

.scene-chip span {
  display: block;
  color: #d6e3e9;
  margin-top: 0.2rem;
  font-size: 0.86rem;
}

.chip-one {
  top: 19%;
  left: 42%;
}

.chip-two {
  top: 22%;
  right: 8%;
  animation-delay: 0.8s;
}

.chip-three {
  bottom: 24%;
  left: 46%;
  animation-delay: 1.4s;
}

.chip-four {
  bottom: 16%;
  right: 8%;
  animation-delay: 2.1s;
}

@keyframes chipFloat {
  0%, 100% { margin-top: 0; }
  50% { margin-top: -10px; }
}

.hero-dashboard {
  display: grid;
  grid-template-columns: minmax(320px, 1fr) minmax(320px, 0.84fr) minmax(280px, 0.56fr);
  gap: 0.8rem;
  margin-top: 0.9rem;
}

.journey-card,
.overview-card,
.benefits-card {
  min-height: 178px;
  padding: 1.2rem;
  border: 1px solid rgba(116, 224, 255, 0.18);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(10, 30, 43, 0.76), rgba(5, 16, 23, 0.86));
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.22);
}

.journey-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
  margin-top: 1.1rem;
}

.journey-steps div {
  min-height: 86px;
  padding: 0.9rem;
  border: 1px solid rgba(116, 224, 255, 0.18);
  border-radius: 8px;
  background: rgba(5, 22, 30, 0.68);
}

.journey-steps span {
  display: block;
  color: var(--green);
  font-weight: 900;
  margin-bottom: 0.55rem;
}

.journey-steps strong {
  display: block;
  line-height: 1.25;
}

.overview-card div {
  display: grid;
  grid-template-columns: minmax(110px, 0.42fr) minmax(140px, 1fr);
  gap: 0.75rem;
  align-items: center;
  min-height: 42px;
  margin-top: 0.7rem;
  padding: 0.7rem 0.75rem;
  border: 1px solid rgba(116, 224, 255, 0.18);
  border-radius: 8px;
  background: rgba(6, 31, 39, 0.72);
}

.overview-card span {
  color: var(--cyan);
  font-weight: 800;
}

.overview-card b {
  color: #dce9ef;
  font-size: 0.9rem;
  line-height: 1.3;
}

.benefits-card ul {
  padding: 0;
  margin: 0.8rem 0 0;
  list-style: none;
}

.benefits-card li {
  position: relative;
  padding-left: 1.1rem;
  margin: 0.75rem 0;
  color: #dce9ef;
  line-height: 1.35;
}

.benefits-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.42rem;
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 12px rgba(78, 240, 170, 0.5);
}

.problem-band,
.platform,
.partners,
.about-contact {
  border-top: 1px solid rgba(116, 224, 255, 0.12);
}

.section-heading {
  margin-bottom: 2rem;
}

.section-heading.split {
  display: grid;
  grid-template-columns: minmax(300px, 0.8fr) minmax(280px, 0.6fr);
  gap: 2rem;
  align-items: end;
}

.problem-grid,
.solution-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.solution-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.problem-grid article,
.solution-grid article,
.timeline article,
.contact-card,
.kpi-panel {
  border: 1px solid rgba(116, 224, 255, 0.18);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(10, 30, 43, 0.76), rgba(5, 16, 23, 0.86));
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.24);
}

.problem-grid article,
.solution-grid article,
.timeline article {
  min-height: 190px;
  padding: 1.25rem;
}

.icon {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 1rem;
  border-radius: 50%;
  color: #00130f;
  background: linear-gradient(135deg, var(--green), var(--cyan));
  font-size: 0.88rem;
  font-weight: 900;
}

.platform-layout {
  display: grid;
  grid-template-columns: minmax(360px, 1fr) minmax(320px, 0.58fr);
  gap: 1rem;
}

.platform-layers {
  display: grid;
  gap: 0.8rem;
}

.platform-layers div {
  display: grid;
  grid-template-columns: minmax(160px, 0.4fr) minmax(260px, 1fr);
  gap: 1rem;
  align-items: center;
  min-height: 76px;
  padding: 1rem 1.1rem;
  border: 1px solid rgba(116, 224, 255, 0.2);
  border-radius: 8px;
  background: linear-gradient(90deg, rgba(13, 68, 62, 0.58), rgba(8, 24, 36, 0.78));
}

.platform-layers span {
  color: var(--cyan);
  font-weight: 800;
}

.platform-layers strong {
  color: #dce9ef;
  font-weight: 600;
  line-height: 1.35;
}

.kpi-panel {
  padding: 1.3rem;
}

.meter {
  margin: 1.25rem 0;
}

.meter span {
  display: block;
  margin-bottom: 0.5rem;
  color: #dce9ef;
}

.meter b {
  display: block;
  height: 10px;
  border-radius: 999px;
  background:
    linear-gradient(90deg, var(--green), var(--cyan)) 0 0 / var(--value) 100% no-repeat,
    rgba(116, 224, 255, 0.13);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  counter-reset: steps;
}

.timeline article span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 1.2rem;
  border: 1px solid rgba(116, 224, 255, 0.42);
  border-radius: 50%;
  color: var(--green);
  font-weight: 900;
}

.partner-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.partner-tags span {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  padding: 0 1rem;
  border: 1px solid rgba(116, 224, 255, 0.22);
  border-radius: 8px;
  background: rgba(8, 26, 36, 0.72);
  color: #dce9ef;
}

.about-contact {
  display: grid;
  grid-template-columns: minmax(300px, 0.8fr) minmax(320px, 0.52fr);
  gap: 2rem;
  align-items: start;
}

.contact-card {
  padding: 1.25rem;
}

label {
  display: block;
  margin-bottom: 1rem;
}

label span {
  display: block;
  margin-bottom: 0.42rem;
  color: #dce9ef;
  font-size: 0.92rem;
}

input,
textarea {
  width: 100%;
  border: 1px solid rgba(116, 224, 255, 0.25);
  border-radius: 8px;
  background: rgba(2, 9, 15, 0.75);
  color: var(--text);
  padding: 0.85rem;
  outline: 0;
}

textarea {
  resize: vertical;
}

input:focus,
textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(114, 233, 255, 0.1);
}

@media (max-width: 1180px) {
  .topbar {
    grid-template-columns: 1fr;
  }

  .nav,
  .top-actions {
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 0.2rem;
  }

  .hero {
    min-height: auto;
  }

  h1 {
    max-width: 14ch;
  }

  .hero-stage {
    min-height: 680px;
  }

  .hero-copy {
    width: min(560px, 54vw);
  }

  .hero-dashboard {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .section {
    width: min(100% - 1rem, 1480px);
    padding: 3.2rem 0;
  }

  .hero {
    min-height: auto;
  }

  h1 {
    font-size: clamp(2.7rem, 13vw, 4.4rem);
  }

  h2 {
    max-width: 22ch;
  }

  .proof-strip,
  .problem-grid,
  .solution-grid,
  .timeline,
  .platform-layout,
  .about-contact,
  .section-heading.split {
    grid-template-columns: 1fr;
  }

  .platform-layers div {
    grid-template-columns: 1fr;
  }

  .hero-stage {
    min-height: auto;
    padding-bottom: 0.8rem;
  }

  .hero-image {
    position: relative;
    min-height: 360px;
    object-position: center;
  }

  .hero-shade {
    background: linear-gradient(180deg, rgba(2, 7, 10, 0.18) 0%, rgba(2, 7, 10, 0.74) 58%, rgba(2, 7, 10, 0.96) 100%);
  }

  .hero-copy {
    width: auto;
    padding: 1.25rem;
  }

  .scene-chip {
    position: relative;
    inset: auto;
    width: calc(50% - 0.4rem);
    display: inline-block;
    margin: 0.25rem;
    vertical-align: top;
  }

  .language-switcher {
    max-width: 100%;
    overflow-x: auto;
  }

  .journey-steps,
  .hero-dashboard {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .topbar {
    padding: 0.8rem;
  }

  .nav {
    gap: 1rem;
    font-size: 0.86rem;
  }

  .hero-buttons,
  .top-actions {
    align-items: stretch;
    flex-direction: column;
    width: 100%;
  }

  .hero-buttons .button,
  .top-actions .button {
    width: 100%;
  }

  .language-switcher {
    width: 100%;
    justify-content: space-between;
  }

  .language-switcher button {
    flex: 1;
    white-space: nowrap;
  }

  .scene-chip {
    width: calc(100% - 0.5rem);
  }
}