:root {
  --bg: #05070b;
  --bg-deep: #020409;
  --panel: rgba(9, 13, 20, 0.76);
  --panel-strong: rgba(12, 17, 26, 0.94);
  --panel-soft: rgba(15, 21, 33, 0.86);
  --line: rgba(229, 236, 246, 0.12);
  --line-strong: rgba(229, 236, 246, 0.18);
  --text: #f4efe6;
  --muted: #9ea8b8;
  --muted-strong: #d7dee8;
  --acid: #d4ff5f;
  --ice: #73d8ff;
  --glow: rgba(115, 216, 255, 0.36);
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.34);
  --radius-lg: 34px;
  --radius-md: 26px;
  --radius-sm: 20px;
  --font-display: "Sora", "IBM Plex Sans KR", sans-serif;
  --font-body: "IBM Plex Sans KR", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font-body);
  background:
    radial-gradient(circle at 14% 16%, rgba(50, 142, 168, 0.18), transparent 26%),
    radial-gradient(circle at 86% 12%, rgba(212, 255, 95, 0.1), transparent 18%),
    radial-gradient(circle at 50% 120%, rgba(95, 126, 255, 0.12), transparent 28%),
    linear-gradient(180deg, #05070b 0%, #07101a 48%, #04060a 100%);
  overflow-x: hidden;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: auto;
  pointer-events: none;
  z-index: 0;
  filter: blur(24px);
}

body::before {
  top: -8rem;
  left: -10rem;
  width: 30rem;
  height: 30rem;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(115, 216, 255, 0.12), transparent 72%);
}

body::after {
  right: -8rem;
  bottom: -10rem;
  width: 32rem;
  height: 32rem;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(212, 255, 95, 0.08), transparent 68%);
}

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

button,
input,
textarea,
select {
  font: inherit;
}

.field-canvas,
.grid-field,
.grain,
.backdrop-orb {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.field-canvas {
  z-index: 0;
}

.grid-field {
  z-index: 1;
  opacity: 0.34;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at center, black 58%, transparent 96%);
}

.grain {
  z-index: 2;
  opacity: 0.1;
  mix-blend-mode: soft-light;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 6px 6px;
}

.backdrop-orb {
  z-index: 1;
}

.backdrop-orb--one {
  background: radial-gradient(circle at 20% 24%, rgba(115, 216, 255, 0.18), transparent 18%);
}

.backdrop-orb--two {
  background: radial-gradient(circle at 82% 18%, rgba(212, 255, 95, 0.12), transparent 14%);
}

.progress-rail {
  position: fixed;
  top: 18vh;
  right: 18px;
  z-index: 5;
  width: 4px;
  height: 42vh;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.progress-rail__bar {
  display: block;
  width: 100%;
  height: 0;
  border-radius: inherit;
  background: linear-gradient(180deg, var(--acid), var(--ice));
  box-shadow: 0 0 18px rgba(115, 216, 255, 0.42);
}

.site-shell {
  position: relative;
  z-index: 4;
  width: min(1280px, calc(100% - 40px));
  margin: 0 auto;
  padding: 22px 0 56px;
}

.site-header {
  position: sticky;
  top: 14px;
  z-index: 7;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 16px;
  margin-bottom: 32px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(5, 8, 13, 0.78);
  backdrop-filter: blur(20px);
  box-shadow: 0 22px 44px rgba(0, 0, 0, 0.22);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand__mark {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  color: #071017;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--acid), var(--ice));
  box-shadow: 0 12px 24px rgba(115, 216, 255, 0.26);
}

.brand__text {
  display: inline-flex;
  flex-direction: column;
  gap: 2px;
}

.brand__text strong {
  font-family: var(--font-display);
  font-size: 0.98rem;
  line-height: 1;
}

.brand__text small {
  color: var(--muted);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.site-nav {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-nav a {
  padding: 8px 0;
  transition: color 180ms ease;
}

.site-nav a.is-active,
.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: #081017;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--acid), #efff9d);
  box-shadow: 0 20px 40px rgba(212, 255, 95, 0.15);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 24px 46px rgba(212, 255, 95, 0.22);
}

.button--secondary,
.button--ghost {
  color: var(--text);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.04);
  box-shadow: none;
}

.text-link {
  display: inline-flex;
  align-items: center;
  color: var(--muted-strong);
  font-weight: 500;
  transition: color 180ms ease;
}

.text-link:hover,
.text-link:focus-visible {
  color: var(--acid);
}

.section {
  padding: 72px 0;
}

.eyebrow,
.section-heading__label,
.stage-kicker,
.card-label,
.system-card__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  color: var(--acid);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.section-heading {
  max-width: 780px;
}

.hero h1,
.section-heading h2,
.launch-board__lead h2,
.media-lab__intro h2,
.contact-panel h2 {
  margin: 20px 0 18px;
  font-family: var(--font-display);
  font-size: clamp(3.6rem, 8vw, 7rem);
  line-height: 0.9;
  letter-spacing: -0.07em;
  max-width: 11ch;
}

.section-heading h2,
.launch-board__lead h2,
.media-lab__intro h2,
.contact-panel h2 {
  max-width: 15ch;
  font-size: clamp(2.3rem, 5vw, 4.8rem);
  line-height: 0.96;
}

.hero__lede,
.section-heading p,
.launch-board__lead p,
.media-lab__intro p,
.contact-panel p,
.system-card p,
.prompt-card__lede,
.output-card li,
.process-card p,
.board-card strong,
.metric-card p,
.mini-card strong,
.console-meta strong {
  margin: 0;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.8;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(420px, 0.98fr);
  grid-template-areas:
    "intro stage"
    "metrics stage";
  gap: 26px 34px;
  align-items: start;
  padding-top: 28px;
}

.hero__intro {
  grid-area: intro;
  display: grid;
  gap: 24px;
}

.hero__stage {
  grid-area: stage;
  perspective: 1600px;
}

.hero__headline {
  display: grid;
  gap: 18px;
}

.hero__highlights,
.system-card ul,
.output-card__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.hero__highlights {
  display: grid;
  gap: 12px;
}

.hero__highlights li,
.system-card li,
.output-card li {
  position: relative;
  padding-left: 18px;
  color: var(--muted-strong);
}

.hero__highlights li::before,
.system-card li::before,
.output-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--acid), var(--ice));
}

.hero__actions,
.contact-panel__actions,
.prompt-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.hero__strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero__strip span,
.stage-fallback__band span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  color: var(--muted-strong);
  background: rgba(255, 255, 255, 0.04);
}

.hero__note-grid,
.hero__metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

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

.mini-card,
.metric-card,
.system-card,
.board-card,
.prompt-card,
.output-card,
.process-card,
.contact-panel,
.contact-panel__aside,
.stage-console,
.screen-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015)),
    var(--panel-strong);
  backdrop-filter: blur(22px);
  box-shadow: var(--shadow);
}

.mini-card::before,
.metric-card::before,
.system-card::before,
.board-card::before,
.prompt-card::before,
.output-card::before,
.process-card::before,
.contact-panel::before,
.contact-panel__aside::before,
.stage-console::before,
.screen-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, rgba(212, 255, 95, 0.38), rgba(115, 216, 255, 0));
}

.mini-card,
.metric-card,
.board-card,
.process-card,
.contact-panel__aside,
.screen-card {
  border-radius: var(--radius-sm);
}

.system-card,
.prompt-card,
.output-card {
  border-radius: var(--radius-md);
}

.contact-panel,
.stage-console {
  border-radius: var(--radius-lg);
}

.mini-card,
.metric-card {
  padding: 18px;
}

.mini-card span,
.metric-card span,
.console-meta span,
.contact-panel__aside span {
  display: inline-flex;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.mini-card strong,
.metric-card strong,
.console-meta strong,
.contact-panel__aside strong {
  display: block;
  color: var(--text);
  font-family: var(--font-display);
  font-size: 1.1rem;
  line-height: 1.4;
}

.metric-card span {
  color: var(--acid);
  font-family: var(--font-display);
  font-size: 0.96rem;
  font-weight: 700;
}

.stage-console {
  padding: 18px;
  transform-style: preserve-3d;
}

.stage-console__top,
.stage-console__bottom {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 14px;
}

.stage-console__top h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: 1.5rem;
  line-height: 1.16;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid rgba(212, 255, 95, 0.2);
  border-radius: 999px;
  color: var(--acid);
  background: rgba(212, 255, 95, 0.08);
  white-space: nowrap;
}

.status-pill__dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: currentColor;
  box-shadow: 0 0 12px currentColor;
}

.stage-screen {
  position: relative;
  margin: 18px 0 16px;
  aspect-ratio: 16 / 11;
  min-height: 500px;
  border-radius: 28px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background:
    radial-gradient(circle at 20% 18%, rgba(115, 216, 255, 0.16), transparent 24%),
    radial-gradient(circle at 84% 20%, rgba(212, 255, 95, 0.12), transparent 18%),
    linear-gradient(180deg, rgba(7, 10, 15, 0.98), rgba(5, 7, 12, 0.98));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
}

.stage-screen::before,
.stage-screen::after {
  content: "";
  position: absolute;
}

.stage-screen::before {
  inset: 28px 30px auto 30px;
  height: calc(100% - 56px);
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  background:
    linear-gradient(180deg, rgba(8, 11, 18, 0.82), rgba(5, 7, 12, 0.98)),
    radial-gradient(circle at 15% 10%, rgba(115, 216, 255, 0.14), transparent 28%);
}

.stage-screen::after {
  right: 58px;
  bottom: 46px;
  width: 180px;
  height: 180px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: radial-gradient(circle, rgba(115, 216, 255, 0.16), transparent 72%);
  box-shadow: inset 0 0 0 28px rgba(255, 255, 255, 0.015);
}

.stage-video,
.stage-fallback {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.stage-video {
  display: none;
  object-fit: cover;
}

.stage-video.is-loaded {
  display: block;
}

.stage-fallback {
  display: grid;
  align-content: space-between;
  gap: 22px;
  padding: 42px;
  z-index: 1;
}

.stage-fallback.is-hidden {
  display: none;
}

.stage-fallback__head {
  display: grid;
  gap: 16px;
  max-width: 24rem;
}

.stage-fallback__label {
  display: inline-flex;
  margin-bottom: 14px;
  color: var(--acid);
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.stage-fallback__head strong {
  display: block;
  max-width: 8ch;
  color: var(--text);
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.3rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.stage-fallback__head p {
  margin: 0;
  color: var(--muted-strong);
  line-height: 1.7;
  max-width: 18rem;
}

.stage-fallback__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.screen-card {
  min-height: 160px;
  padding: 18px;
  background:
    linear-gradient(180deg, rgba(14, 21, 34, 0.92), rgba(8, 12, 18, 0.92)),
    var(--panel-soft);
}

.screen-card--wide {
  grid-column: 1 / -1;
  min-height: 0;
}

.screen-card span {
  display: inline-flex;
  margin-bottom: 16px;
  color: var(--acid);
  font-family: var(--font-display);
  font-size: 0.84rem;
  letter-spacing: 0.12em;
}

.screen-card strong {
  display: block;
  margin-bottom: 12px;
  color: var(--text);
  font-family: var(--font-display);
  font-size: 1.18rem;
  line-height: 1.3;
}

.screen-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.stage-fallback__band {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.console-meta {
  max-width: 19rem;
}

.console-meta strong {
  margin-bottom: 0;
  font-size: 0.98rem;
}

.system__grid,
.media-lab__grid,
.process__grid {
  display: grid;
  gap: 18px;
  margin-top: 30px;
}

.system__grid {
  grid-template-columns: repeat(12, minmax(0, 1fr));
}

.system-card {
  padding: 28px;
}

.system-card--quote {
  grid-column: span 5;
}

.system-card--primary {
  grid-column: span 7;
}

.system__grid .system-card:not(.system-card--quote):not(.system-card--primary) {
  grid-column: span 6;
}

.system-card h3,
.prompt-card h3,
.output-card h3,
.process-card h3 {
  margin: 18px 0 12px;
  color: var(--text);
  font-family: var(--font-display);
  font-size: 1.58rem;
  line-height: 1.12;
}

.system-card p + ul,
.output-card h3 + .output-card__list {
  margin-top: 18px;
}

.launch-board {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  gap: 28px;
  align-items: start;
}

.launch-board__stack {
  display: grid;
  gap: 14px;
}

.board-card {
  display: grid;
  gap: 12px;
  padding: 20px 22px;
  background:
    linear-gradient(180deg, rgba(17, 23, 35, 0.92), rgba(9, 13, 20, 0.88)),
    var(--panel-soft);
}

.board-card span {
  display: inline-flex;
  color: var(--acid);
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.board-card strong {
  color: var(--text);
  font-family: var(--font-display);
  font-size: 1.22rem;
  line-height: 1.45;
}

.media-lab {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 24px;
  align-items: start;
}

.media-lab__grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 0;
}

.prompt-card,
.output-card {
  padding: 28px;
}

.output-card {
  grid-column: 1 / -1;
}

.prompt-card__lede {
  color: var(--muted);
}

.copy-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    color 180ms ease,
    background 180ms ease;
}

.copy-button:hover,
.copy-button:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(212, 255, 95, 0.32);
  color: var(--acid);
}

.copy-button.is-copied {
  color: #081017;
  border-color: transparent;
  background: linear-gradient(135deg, var(--acid), var(--ice));
}

.prompt-block {
  margin: 20px 0 0;
  padding: 20px;
  overflow: auto;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(4, 7, 12, 0.9);
  color: var(--muted-strong);
  font-family: "IBM Plex Mono", "Courier New", monospace;
  font-size: 0.92rem;
  line-height: 1.7;
  white-space: pre-wrap;
}

.output-card__list {
  display: grid;
  gap: 12px;
}

.process__grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  position: relative;
}

.process__grid::before {
  content: "";
  position: absolute;
  left: 3%;
  right: 3%;
  top: 26px;
  height: 1px;
  background: linear-gradient(90deg, rgba(212, 255, 95, 0.3), rgba(115, 216, 255, 0.14));
  z-index: 0;
}

.process-card {
  z-index: 1;
  padding: 26px;
}

.process-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 58px;
  min-height: 34px;
  margin-bottom: 18px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid rgba(212, 255, 95, 0.24);
  color: var(--acid);
  background: rgba(212, 255, 95, 0.08);
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
}

.contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 22px;
  align-items: stretch;
  padding: 32px;
}

.contact-panel__aside {
  padding: 22px;
  background:
    linear-gradient(180deg, rgba(18, 25, 37, 0.94), rgba(10, 14, 21, 0.92)),
    var(--panel-soft);
}

.contact-panel__aside p {
  margin-top: 12px;
  color: var(--muted);
  line-height: 1.7;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 20px;
  padding: 18px 2px 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 700ms ease,
    transform 700ms ease;
}

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

@media (max-width: 1180px) {
  .hero,
  .launch-board,
  .media-lab,
  .contact-panel {
    grid-template-columns: 1fr;
    grid-template-areas:
      "intro"
      "stage"
      "metrics";
  }

  .system__grid,
  .process__grid,
  .media-lab__grid,
  .hero__metrics {
    grid-template-columns: 1fr;
  }

  .system-card--quote,
  .system-card--primary,
  .system__grid .system-card:not(.system-card--quote):not(.system-card--primary) {
    grid-column: span 12;
  }

  .process__grid::before {
    display: none;
  }
}

@media (max-width: 860px) {
  .site-shell {
    width: min(100% - 24px, 1280px);
    padding-top: 14px;
  }

  .site-header {
    flex-wrap: wrap;
    justify-content: center;
    border-radius: 28px;
  }

  .hero__note-grid,
  .stage-fallback__grid,
  .stage-fallback__head {
    grid-template-columns: 1fr;
  }

  .stage-screen {
    min-height: 540px;
  }

  .stage-fallback {
    padding: 28px;
  }
}

@media (max-width: 640px) {
  .section {
    padding: 48px 0;
  }

  .progress-rail {
    right: 10px;
    height: 34vh;
  }

  .button,
  .text-link,
  .copy-button {
    width: 100%;
    justify-content: center;
  }

  .hero__actions,
  .contact-panel__actions,
  .prompt-card__head,
  .stage-console__top,
  .stage-console__bottom {
    flex-direction: column;
    align-items: stretch;
  }

  .hero h1 {
    font-size: clamp(3.2rem, 17vw, 5rem);
  }

  .stage-screen {
    aspect-ratio: 3 / 4;
    min-height: 0;
  }

  .prompt-card,
  .output-card,
  .system-card,
  .contact-panel {
    padding: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}