:root {
  --ink: #07372f;
  --ink-deep: #032c26;
  --ink-darker: #02231e;
  --mint: #7ff0d6;
  --mint-bright: #8bf6df;
  --mint-pale: #d9f8f3;
  --paper: #effcf9;
  --white: #ffffff;
  --line: rgba(7, 55, 47, 0.18);
  --dark-line: rgba(127, 240, 214, 0.18);
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    Inter,
    Pretendard,
    "Noto Sans KR",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  overflow-x: hidden;
}

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

button,
input,
select {
  font: inherit;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  padding: 7px 18px 0;
}

.nav-shell {
  width: min(900px, calc(100% - 24px));
  min-height: 48px;
  margin: 0 auto;
  padding: 6px 8px 6px 16px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 20px;
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 12px 30px rgba(2, 34, 29, 0.16);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  letter-spacing: -0.03em;
  white-space: nowrap;
}

.brand-symbol {
  position: relative;
  width: 22px;
  height: 16px;
  display: inline-block;
}

.brand-symbol i {
  position: absolute;
  top: 2px;
  width: 11px;
  height: 11px;
  border-radius: 70% 40% 70% 40%;
  background: var(--ink);
  transform: rotate(45deg);
}

.brand-symbol i:first-child {
  left: 1px;
}

.brand-symbol i:last-child {
  right: 1px;
  transform: rotate(-45deg);
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
}

.main-nav a,
.nav-actions a {
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
}

.main-nav a {
  position: relative;
  padding: 8px 0;
}

.main-nav a::after {
  content: "";
  position: absolute;
  right: 50%;
  bottom: 3px;
  left: 50%;
  height: 1px;
  background: var(--ink);
  transition:
    right 0.2s ease,
    left 0.2s ease;
}

.main-nav a:hover::after,
.main-nav a.active::after {
  right: 0;
  left: 0;
}

.nav-actions {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-actions .plain-link {
  max-width: 95px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.plain-link {
  opacity: 0.55;
}

.login-link {
  padding: 9px 17px;
  border-radius: 999px;
  background: var(--mint);
}

.menu-toggle {
  display: none;
  border: 0;
  background: transparent;
}

.dark-section {
  color: var(--white);
  background: var(--ink-deep);
}

.protocol-hero {
  position: relative;
  min-height: 430px;
  padding: 100px 24px 70px;
  display: grid;
  place-items: center;
  overflow: hidden;
  text-align: center;
}

.hero-haze {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(
      circle at 12% 38%,
      rgba(20, 111, 91, 0.18),
      transparent 32%
    ),
    radial-gradient(
      circle at 82% 14%,
      rgba(127, 240, 214, 0.08),
      transparent 28%
    );
}

.protocol-hero-inner {
  position: relative;
  width: min(860px, 100%);
}

.eyebrow,
.section-label,
.card-label {
  margin: 0;
  color: var(--mint);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.22em;
}

.protocol-hero h1,
.works-section h2,
.architecture-section h2,
.future-section h2 {
  margin: 18px 0 0;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 500;
  letter-spacing: -0.045em;
}

.protocol-hero h1 {
  font-size: clamp(52px, 6vw, 78px);
  line-height: 0.98;
}

.hero-copy {
  margin: 25px auto 0;
  max-width: 690px;
  color: rgba(255, 255, 255, 0.64);
  font-size: 14px;
  line-height: 1.7;
}

.hero-actions {
  margin-top: 34px;
  display: flex;
  justify-content: center;
  gap: 16px;
}

.button {
  min-width: 160px;
  height: 46px;
  padding: 0 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid transparent;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.17em;
  transition:
    transform 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--ink);
  background: var(--mint-bright);
}

.button-outline {
  color: var(--mint-bright);
  border-color: rgba(139, 246, 223, 0.4);
}

.section-inner {
  width: min(1030px, calc(100% - 48px));
  margin: 0 auto;
}

.works-section {
  padding: 90px 0 95px;
  background: var(--mint-pale);
}

.works-section h2,
.architecture-section h2 {
  font-size: clamp(45px, 5vw, 63px);
}

.section-description {
  max-width: 700px;
  margin: 33px 0 0;
  font-size: 13px;
  line-height: 1.75;
  opacity: 0.67;
}

.feature-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feature-grid article {
  padding-top: 21px;
  border-top: 1px solid var(--line);
}

.feature-grid h3 {
  margin: 0;
  font-size: 14px;
}

.feature-grid p {
  margin: 10px 0 0;
  font-size: 12px;
  line-height: 1.65;
  opacity: 0.65;
}

.architecture-section {
  padding: 90px 0 100px;
}

.muted-light {
  color: rgba(255, 255, 255, 0.62);
  opacity: 1;
}

.asset-table-wrap {
  margin-top: 48px;
  overflow-x: auto;
}

.asset-table {
  width: 100%;
  min-width: 650px;
  border-collapse: collapse;
  color: rgba(255, 255, 255, 0.7);
}

.asset-table th,
.asset-table td {
  padding: 16px 14px;
  border-bottom: 1px solid var(--dark-line);
  text-align: left;
  font-size: 12px;
}

.asset-table th {
  color: var(--mint);
  font-size: 9px;
  letter-spacing: 0.13em;
}

.asset-table strong {
  color: var(--white);
}

.status-live {
  color: var(--mint-bright);
}

.empty-cell {
  padding: 40px !important;
  text-align: center !important;
}

.future-section {
  padding: 100px 0 90px;
  text-align: center;
  background: var(--ink-darker);
}

.future-section h2 {
  font-size: clamp(48px, 5.5vw, 70px);
}

.future-copy {
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.55);
  font-size: 13px;
}

.history-list {
  max-width: 850px;
  margin: 45px auto 0;
  border-top: 1px solid var(--dark-line);
}

.history-item {
  padding: 18px 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 25px;
  border-bottom: 1px solid var(--dark-line);
  text-align: left;
}

.history-item strong {
  color: var(--white);
  font-size: 12px;
}

.history-item p {
  margin: 7px 0 0;
  color: rgba(255, 255, 255, 0.5);
  font-size: 11px;
}

.history-item time {
  color: rgba(255, 255, 255, 0.4);
  font-size: 10px;
  white-space: nowrap;
}

.history-empty {
  padding: 38px;
  border-bottom: 1px solid var(--dark-line);
  color: rgba(255, 255, 255, 0.46);
  font-size: 12px;
}

.center-button {
  margin-top: 42px;
}

.site-footer {
  padding: 52px 0 35px;
  color: rgba(255, 255, 255, 0.68);
  background: var(--ink-deep);
}

.footer-inner {
  width: min(1030px, calc(100% - 48px));
  margin: 0 auto;
}

.footer-links {
  padding-bottom: 42px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 80px;
}

.footer-links div {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-links strong {
  color: var(--white);
  font-size: 12px;
}

.footer-links a {
  width: fit-content;
  font-size: 11px;
  opacity: 0.62;
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-bottom strong {
  color: var(--white);
  font-size: 18px;
  letter-spacing: 0.08em;
}

.footer-bottom p {
  margin: 12px 0 0;
  font-size: 10px;
  opacity: 0.52;
}

@media (max-width: 860px) {
  .nav-shell {
    grid-template-columns: auto auto;
    justify-content: space-between;
  }

  .menu-toggle {
    width: 36px;
    height: 36px;
    display: grid;
    place-content: center;
    gap: 5px;
  }

  .menu-toggle span {
    width: 18px;
    height: 1px;
    display: block;
    background: var(--ink);
  }

  .main-nav,
  .nav-actions {
    display: none;
  }

  .nav-shell.menu-open {
    grid-template-columns: 1fr auto;
    border-radius: 24px;
  }

  .nav-shell.menu-open .main-nav,
  .nav-shell.menu-open .nav-actions {
    grid-column: 1 / -1;
    display: flex;
    justify-content: center;
    padding: 8px 0;
  }

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

@media (max-width: 640px) {
  .site-header {
    padding-inline: 4px;
  }

  .nav-shell {
    width: calc(100% - 12px);
  }

  .protocol-hero {
    min-height: 560px;
    padding-top: 115px;
  }

  .protocol-hero h1 {
    font-size: 48px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .button {
    width: min(270px, 100%);
  }

  .section-inner {
    width: calc(100% - 32px);
  }

  .works-section,
  .architecture-section,
  .future-section {
    padding-top: 75px;
    padding-bottom: 75px;
  }

  .history-item {
    flex-direction: column;
    gap: 10px;
  }

  .history-item time {
    white-space: normal;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

.architecture-actions {
  margin-top: 46px;
  display: flex;
  gap: 16px;
}

@media (max-width: 640px) {
  .architecture-actions {
    flex-direction: column;
    align-items: center;
  }
}
.brand strong {
  font-weight: 500;
}
.brand strong {
  display: inline-flex;
  align-items: baseline;
  font-size: 21px;
  font-weight: 300;
  letter-spacing: -0.05em;
}

.brand-hyper {
  display: inline-block;
  font-weight: 300;
  font-style: normal;
}

.brand-liquid {
  display: inline-block;
  font-weight: 300;
  font-style: normal;
  transform: skewX(-12deg);
  transform-origin: center bottom;
  margin-left: 1px;
}
.guest-login-link {
  padding: 9px 4px;
  color: var(--ink);
  font-size: 11px;
  font-weight: 700;
  opacity: 0.68;
  transition: opacity 0.2s ease;
}

.guest-login-link:hover {
  opacity: 1;
}

.signup-link {
  padding: 9px 17px;
  border-radius: 999px;
  color: var(--ink);
  background: var(--mint);
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
  transition:
    background 0.2s ease,
    transform 0.2s ease;
}

.signup-link:hover {
  background: var(--mint-bright);
  transform: translateY(-1px);
}