:root {
  --deep-navy: #0B1B34;
  --panel-navy: #102A43;
  --neon-green: #00F5A0;
  --gold: #F5B700;
  --alert-red: #FF6B6B;
  --cold-white: #F0F4F8;
  --gray-blue: #9FB3C8;
  --data-white: #E2E8F0;
  --speed-line-gradient: linear-gradient(135deg, #00F5A0 0%, #0B1B34 80%);
  --font-display: "Saira Extra Condensed", "DIN Condensed", "Noto Sans SC Black", sans-serif;
  --font-body: "Noto Sans SC", "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", monospace;
  --header-h: 72px;
  --container-max: 1280px;
  --radius: 0;
  --shadow-panel: 0 12px 30px rgba(0,0,0,0.30);
  --shadow-float: 0 20px 50px rgba(0,0,0,0.45);
  --time-fast: 160ms ease;
  --time-mid: 320ms cubic-bezier(0.2, 0.9, 0.3, 1);
  --body-bg: var(--deep-navy);
  --body-text: var(--cold-white);
  --content-width: 1280px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 24px);
}

body {
  background: var(--body-bg);
  color: var(--body-text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  min-height: 100vh;
}

img,
picture,
svg,
video {
  display: block;
  max-width: 100%;
  height: auto;
}

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

ul,
ol {
  list-style: none;
}

button {
  font: inherit;
  border: 0;
  background: none;
  color: inherit;
  cursor: pointer;
}

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

:focus-visible {
  outline: 3px solid var(--neon-green);
  outline-offset: 4px;
  border-radius: 2px;
}

::selection {
  background: var(--neon-green);
  color: var(--deep-navy);
}

.container {
  width: min(100% - 48px, var(--container-max));
  margin-inline: auto;
}

/* ---------- skip link ---------- */
.skip-link {
  position: fixed;
  top: -100px;
  left: 24px;
  z-index: 10000;
  background: var(--neon-green);
  color: var(--deep-navy);
  font-weight: 700;
  padding: 12px 24px;
  transform: skewX(-5deg);
  box-shadow: var(--shadow-panel);
  transition: top var(--time-fast);
}

.skip-link:focus-visible {
  top: 16px;
}

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(11, 27, 52, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(0, 245, 160, 0.18);
  height: var(--header-h);
  transition: background var(--time-fast);
}

.site-header__inner {
  height: var(--header-h);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  white-space: nowrap;
}

.site-header__logo {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  background: var(--neon-green);
  color: var(--deep-navy);
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 900;
  transform: skewX(-8deg);
  box-shadow: 6px 6px 0 rgba(0, 245, 160, 0.15);
}

.site-header__name {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  font-family: var(--font-display);
  text-transform: uppercase;
}

.site-header__suffix {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  color: var(--neon-green);
  border-left: 1px solid rgba(0, 245, 160, 0.4);
  padding-left: 12px;
  text-transform: uppercase;
}

.site-nav {
  justify-self: end;
}

.site-nav__list {
  display: flex;
  gap: 4px;
}

.site-nav__link {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  padding: 8px 12px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-blue);
  border-bottom: 2px solid transparent;
  transition: color var(--time-fast), border-color var(--time-fast), background var(--time-fast);
  transform: skewX(-4deg);
}

.site-nav__link > * {
  transform: skewX(4deg);
}

.site-nav__index {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--neon-green);
  opacity: 0.7;
  letter-spacing: 0.1em;
}

.site-nav__link:hover {
  color: var(--cold-white);
  border-bottom-color: var(--neon-green);
}

.site-nav__link[aria-current="page"] {
  color: var(--neon-green);
  border-bottom-color: var(--neon-green);
  background: linear-gradient(to top, rgba(0, 245, 160, 0.08), transparent 70%);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.site-header__time {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--data-white);
  letter-spacing: 0.08em;
  border: 1px solid rgba(159, 179, 200, 0.2);
  padding: 4px 10px;
  background: rgba(16, 42, 67, 0.6);
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon-green);
  box-shadow: 0 0 0 0 rgba(0, 245, 160, 0.6);
  animation: pulse-dot 2.2s ease-out infinite;
}

@keyframes pulse-dot {
  0% {
    box-shadow: 0 0 0 0 rgba(0, 245, 160, 0.5);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(0, 245, 160, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(0, 245, 160, 0);
  }
}

.nav-toggle {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(0, 245, 160, 0.3);
}

.nav-toggle__line {
  position: absolute;
  width: 22px;
  height: 2px;
  background: var(--neon-green);
  transform: skewX(-16deg);
  transition: transform var(--time-mid), opacity var(--time-fast), background var(--time-fast);
}

.nav-toggle__line--second {
  margin-top: 10px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line--second {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line {
  transform: rotate(45deg) skewX(-16deg);
  margin-top: 0;
}

/* ---------- footer ---------- */
.site-footer {
  position: relative;
  background: #081324;
  margin-top: 120px;
  border-top: 1px solid rgba(245, 183, 0, 0.25);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--speed-line-gradient);
  opacity: 0.5;
}

.site-footer__inner {
  padding: 80px 0 56px;
  display: grid;
  grid-template-columns: 1.2fr 2fr 1.4fr;
  gap: 64px;
  align-items: start;
}

.site-footer__brand-panel {
  position: relative;
}

.site-footer__brand-line {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}

.site-footer__brand-mark {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 900;
  transform: skewX(-6deg);
  color: var(--cold-white);
  text-shadow: 4px 4px 0 var(--neon-green);
}

.site-footer__brand-en {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.25em;
  color: var(--gray-blue);
  text-transform: uppercase;
  opacity: 0.6;
}

.site-footer__slogan {
  margin-top: 10px;
  color: var(--gold);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: 0.1em;
}

.site-footer__trust {
  margin-top: 20px;
  max-width: 32ch;
  font-size: 0.875rem;
  color: var(--gray-blue);
  border-left: 3px solid var(--neon-green);
  padding-left: 16px;
}

.site-footer__speedline {
  height: 4px;
  width: 160px;
  margin-top: 24px;
  background: var(--speed-line-gradient);
  transform: skewX(-20deg);
  opacity: 0.6;
}

.site-footer__columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.site-footer__column-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--neon-green);
  margin-bottom: 18px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(0, 245, 160, 0.18);
}

.site-footer__lists {
  display: grid;
  gap: 10px;
}

.site-footer__link {
  font-size: 0.875rem;
  color: var(--cold-white);
  transition: color var(--time-fast), padding-left var(--time-fast);
}

.site-footer__link:hover,
.site-footer__link:focus-visible {
  color: var(--neon-green);
  padding-left: 6px;
}

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

.site-footer__contact-item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 12px;
  align-items: baseline;
  font-size: 0.875rem;
}

.site-footer__contact-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--gold);
  letter-spacing: 0.1em;
  opacity: 0.8;
}

.site-footer__contact-item a {
  color: var(--cold-white);
  word-break: break-all;
}

.site-footer__contact-item a:hover {
  color: var(--neon-green);
}

.site-footer__note {
  margin-top: 18px;
  font-size: 0.75rem;
  color: var(--gray-blue);
  border-left: 2px solid rgba(245, 183, 0, 0.4);
  padding-left: 12px;
}

.site-footer__bottom {
  padding: 24px 0;
  border-top: 1px solid rgba(159, 179, 200, 0.12);
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
}

.site-footer__legal-links {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.site-footer__legal-link {
  font-size: 0.8125rem;
  color: var(--gray-blue);
  transition: color var(--time-fast);
}

.site-footer__legal-link:hover {
  color: var(--neon-green);
}

.site-footer__dot {
  color: rgba(159, 179, 200, 0.4);
  font-family: var(--font-mono);
}

.site-footer__copyright {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: 0.8125rem;
  color: var(--gray-blue);
  flex-wrap: wrap;
}

.site-footer__icp {
  font-family: var(--font-mono);
  color: var(--data-white);
}

/* ---------- shared page elements ---------- */
.site-main {
  min-height: 70vh;
}

.site-main > .container {
  padding-block: 56px;
}

.breadcrumb {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 0.8125rem;
  color: var(--gray-blue);
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.breadcrumb__link {
  color: var(--gray-blue);
  transition: color var(--time-fast);
}

.breadcrumb__link:hover {
  color: var(--neon-green);
}

.breadcrumb__sep {
  color: rgba(159, 179, 200, 0.45);
  font-family: var(--font-mono);
}

.breadcrumb__current {
  color: var(--neon-green);
  font-weight: 500;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--neon-green);
  color: var(--deep-navy);
  font-weight: 800;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 14px 28px;
  transform: skewX(-8deg);
  box-shadow: 8px 8px 0 rgba(0, 245, 160, 0.14);
  transition: transform var(--time-mid), box-shadow var(--time-mid), background var(--time-fast);
}

.btn > * {
  transform: skewX(8deg);
}

.btn:hover,
.btn:focus-visible {
  background: var(--cold-white);
  transform: skewX(-8deg) translateY(-2px);
  box-shadow: 8px 14px 0 rgba(0, 245, 160, 0.18);
}

.btn--ghost {
  background: transparent;
  color: var(--neon-green);
  border: 1px solid var(--neon-green);
  box-shadow: none;
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  background: rgba(0, 245, 160, 0.08);
  color: var(--neon-green);
  box-shadow: none;
}

.section-heading {
  display: grid;
  gap: 8px;
  margin-bottom: 40px;
}

.section-heading__index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--neon-green);
  letter-spacing: 0.2em;
}

.section-heading__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 0.95;
  font-weight: 900;
  text-transform: uppercase;
  transform: skewX(-6deg);
  transform-origin: left bottom;
  color: var(--cold-white);
}

.section-heading__rule {
  width: 96px;
  height: 4px;
  background: var(--speed-line-gradient);
  transform: skewX(-20deg);
}

/* ---------- generic data panels ---------- */
.data-panel {
  background: var(--panel-navy);
  border: 1px solid rgba(159, 179, 200, 0.12);
  box-shadow: var(--shadow-panel);
  overflow: hidden;
  transition: transform var(--time-mid), box-shadow var(--time-mid), border-color var(--time-fast);
}

.data-panel:hover,
.data-panel:focus-within {
  border-color: rgba(0, 245, 160, 0.35);
  transform: translateY(-2px);
  box-shadow: var(--shadow-float);
}

.data-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(159, 179, 200, 0.12);
  background: rgba(11, 27, 52, 0.4);
}

.data-panel__title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--cold-white);
  letter-spacing: 0.05em;
}

.data-panel__body {
  padding: 20px;
}

.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 10px;
  transform: skewX(-8deg);
  background: var(--deep-navy);
  color: var(--gray-blue);
  border-left: 3px solid var(--neon-green);
}

.tag--green {
  color: var(--neon-green);
  border-left-color: var(--neon-green);
}

.tag--gold {
  color: var(--gold);
  border-left-color: var(--gold);
}

.tag--red {
  color: var(--alert-red);
  border-left-color: var(--alert-red);
}

/* ---------- image container base ---------- */
.image-frame {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(0, 245, 160, 0.04), rgba(16, 42, 67, 0.6));
  border: 1px solid rgba(159, 179, 200, 0.16);
  min-height: 180px;
}

.image-frame::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: var(--speed-line-gradient);
  opacity: 0.6;
}

.image-frame--16x9 {
  aspect-ratio: 16 / 9;
}

.image-frame--4x5 {
  aspect-ratio: 4 / 5;
}

.image-frame--wide {
  aspect-ratio: 21 / 9;
}

.image-frame > * {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.8) contrast(1.05);
}

.image-frame__placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--gray-blue);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  background:
    linear-gradient(135deg, transparent 48%, rgba(0, 245, 160, 0.05) 48%, rgba(0, 245, 160, 0.05) 52%, transparent 52%);
  background-size: 16px 16px;
}

/* ---------- motion / visibility ---------- */
[data-visibility] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 700ms cubic-bezier(0.2, 0.9, 0.3, 1), transform 700ms cubic-bezier(0.2, 0.9, 0.3, 1);
}

[data-visibility].is-visible {
  opacity: 1;
  transform: none;
}

[data-scroll-lines] {
  transition: transform 300ms linear;
  will-change: transform;
}

/* ---------- mobile nav ---------- */
@media (max-width: 960px) {
  :root {
    --header-h: 64px;
  }

  .container {
    width: min(100% - 32px, var(--container-max));
  }

  .site-header__inner {
    grid-template-columns: 1fr auto;
  }

  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(8, 19, 36, 0.98);
    border-bottom: 1px solid rgba(0, 245, 160, 0.15);
    max-height: 0;
    overflow: hidden;
    transition: max-height 420ms cubic-bezier(0.2, 0.9, 0.3, 1);
    justify-self: stretch;
  }

  .site-nav[data-open="true"] {
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }

  .site-nav__list {
    flex-direction: column;
    padding: 16px 16px 24px;
    gap: 4px;
  }

  .site-nav__link {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
    padding: 16px 18px;
    font-size: 1rem;
    border: 1px solid transparent;
    border-left: 3px solid transparent;
  }

  .site-nav__link[aria-current="page"] {
    border-left-color: var(--neon-green);
  }

  .site-header__brand {
    gap: 10px;
  }

  .site-header__logo {
    width: 38px;
    height: 38px;
  }

  .site-header__suffix {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: 48px;
    padding: 64px 0 48px;
  }

  .site-footer__columns {
    gap: 32px;
  }
}

@media (max-width: 640px) {
  .site-header__time {
    display: none;
  }

  .site-header__inner {
    gap: 12px;
  }

  .site-footer__columns {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .site-footer__contact-list {
    gap: 10px;
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .site-footer__brand-mark {
    font-size: 2.4rem;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  [data-visibility] {
    opacity: 1;
    transform: none;
  }
}