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

:root {
  --bg:            #080808;
  --glass-bg:      rgba(255,255,255,0.03);
  --glass-border:  rgba(255,255,255,0.08);
  --text-primary:  #eeeae0;
  --text-muted:    #a8b8ae;
  --accent:        #7b5ea7;
  --accent-bright: #a87fd4;
  --accent-dim:    rgba(123,94,167,0.15);
  --dot-color:     rgba(255,255,255,0.06);
  --green:         #4a8c5c;
  --text-card-desc:#c4cecc;
}

html { scroll-behavior: smooth; }

body {
  background-color: var(--bg);
  background-image:
    url('../assets/home_wallpaper.webp'),
    radial-gradient(circle, var(--dot-color) 1px, transparent 1px);
  background-size: cover, 18px 18px;
  background-position: center, 0 0;
  background-attachment: fixed, fixed;
  color: var(--text-primary);
  font-family: 'Share Tech Mono', monospace;
  overflow-x: hidden;
}

/* ── DARKENING OVERLAY ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: rgba(8,8,8,0.70);
  z-index: 0;
  pointer-events: none;
}

/* ── SCANLINES ── */
.scanlines {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 3px,
    rgba(0,0,0,0.1) 3px,
    rgba(0,0,0,0.1) 4px
  );
}

/* ── WINDOW FRAME ── */
.window-frame {
  position: fixed;
  inset: 0;
  z-index: 3;
  pointer-events: none;
}

.window-frame::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 75% 55% at 50% 50%, transparent 35%, rgba(0,0,0,0.65) 100%),
    radial-gradient(ellipse 120% 22% at 50% 0%,   rgba(0,0,0,0.75) 0%, transparent 80%),
    radial-gradient(ellipse 120% 22% at 50% 100%, rgba(0,0,0,0.75) 0%, transparent 80%);
}

.window-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 32px solid rgba(8,8,10,0.97);
  box-shadow:
    inset 0 0 80px rgba(0,0,0,0.8),
    inset 0 0 2px rgba(123,94,167,0.15);
}

/* ── DECORATIVE CHINESE TEXT LAYER ── */
.bg-chinese {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  user-select: none;
  overflow: hidden;
}

.zh {
  position: absolute;
  writing-mode: vertical-rl;
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.35em;
  color: rgba(168,127,212,0.55);
  white-space: nowrap;
}

.zh-1 { left: 6%;   top: 5%;  font-size: 0.65rem; opacity: 0.75; }
.zh-2 { left: 14%;  top: 30%; font-size: 0.9rem;  opacity: 0.60; }
.zh-3 { left: 28%;  top: 10%; font-size: 0.55rem; opacity: 0.85; }
.zh-4 { left: 42%;  top: 55%; font-size: 0.8rem;  opacity: 0.55; }
.zh-5 { left: 58%;  top: 8%;  font-size: 0.7rem;  opacity: 0.70; }
.zh-6 { left: 70%;  top: 40%; font-size: 0.6rem;  opacity: 0.80; }
.zh-7 { left: 82%;  top: 15%; font-size: 0.85rem; opacity: 0.50; }
.zh-8 { left: 91%;  top: 60%; font-size: 0.65rem; opacity: 0.65; }

/* ── SITE WRAPPER ── */
.site-wrapper {
  position: relative;
  z-index: 4;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* solid bg on nav, cards, footer so bg image doesn't show through */
.sys-bar,
nav,
.warn-strip,
.cards,
.status-bar {
  background-color: var(--bg);
}

/* ── TOP SYSTEM BAR ── */
.sys-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.45rem 3.5rem;
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(123,94,167,0.18);
  text-transform: uppercase;
}

.sys-bar-left { display: flex; gap: 2rem; }
.sys-tag { color: var(--accent-bright); opacity: 0.75; }

/* ── NAV ── */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.6rem 3.5rem;
  position: relative;
}

nav::after {
  content: '';
  position: absolute;
  bottom: 0; left: 3.5rem; right: 3.5rem;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(123,94,167,0.45), transparent);
}

.nav-logo {
  font-family: 'Doto', monospace;
  font-size: 1.05rem;
  letter-spacing: 0.1em;
  color: var(--text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.nav-logo-bracket { color: var(--green); font-family: 'Share Tech Mono', monospace; font-size: 0.9rem; }
.nav-logo .nav-logo-title { color: var(--accent-bright); }

.nav-links { display: flex; gap: 2.8rem; list-style: none; align-items: center; }

.nav-links a {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.nav-links a::before { content: '//'; margin-right: 0.3em; color: var(--accent); opacity: 0; transition: opacity 0.2s; }
.nav-links a:hover { color: var(--green); }
.nav-links a:hover::before { opacity: 1; }

/* ── HERO ── */
.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 4rem 3.5rem 3rem;
  max-width: 900px;
  position: relative;
}

/* ── CHINESE VERTICAL DECORATION ── */
.hero-jp {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%) rotate(180deg);
  writing-mode: vertical-rl;
  font-size: 0.56rem;
  letter-spacing: 0.3em;
  color: rgba(123,94,167,0.22);
  text-transform: uppercase;
  pointer-events: none;
  user-select: none;
}

.hero-eyebrow {
  font-size: 0.7rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent-bright);
  margin-bottom: 1.4rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.2s forwards;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.hero-eyebrow::before {
  content: '';
  display: inline-block;
  width: 28px; height: 1px;
  background: var(--accent);
}

.hero-title {
  font-family: 'Doto', monospace;
  font-size: clamp(0.9rem, 3.2vw, 3.2rem);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 0.4rem;
  opacity: 0;
  animation: fadeUp 0.9s 0.4s forwards;
}

.hero-title em {
  font-style: normal;
  color: var(--accent-bright);
}

.hero-code {
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 1.8rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.55s forwards;
}

.hero-subtitle {
  font-size: 0.82rem;
  line-height: 1.9;
  color: var(--text-muted);
  max-width: 460px;
  margin-bottom: 2.8rem;
  opacity: 0;
  animation: fadeUp 0.9s 0.65s forwards;
  border-left: 2px solid rgba(123,94,167,0.35);
  padding-left: 1rem;
}

.hero-cta {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.9s 0.8s forwards;
}

.btn {
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.63rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.7rem 1.6rem;
  border: 1px solid;
  transition: background 0.25s, border-color 0.25s, color 0.25s, box-shadow 0.25s;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #e8e4dc;
}

.btn-primary:hover {
  background: var(--accent-bright);
  border-color: var(--accent-bright);
  box-shadow: 0 0 20px rgba(168,127,212,0.3);
}

.btn-ghost {
  background: transparent;
  border-color: rgba(123,94,167,0.4);
  color: var(--text-muted);
}

.btn-ghost:hover {
  border-color: var(--accent-bright);
  color: var(--accent-bright);
}

/* ── WARNING MARQUEE ── */
.warn-strip {
  display: flex;
  align-items: center;
  padding: 0.5rem 0;
  font-size: 0.56rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  border-top: 1px solid rgba(192,57,43,0.2);
  border-bottom: 1px solid rgba(192,57,43,0.2);
  color: rgba(192,57,43,0.55);
  overflow: hidden;
  white-space: nowrap;
}

.warn-strip-inner {
  display: inline-flex;
  gap: 4rem;
  animation: marquee 24s linear infinite;
  will-change: transform;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── CARDS ── */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--glass-border);
}

.card {
  padding: 2rem 2.4rem;
  background: var(--glass-bg);
  border-right: 1px solid var(--glass-border);
  transition: background 0.25s;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 54px; height: 54px;
  background: radial-gradient(circle, rgba(123,94,167,0.28) 1px, transparent 1px);
  background-size: 6px 6px;
}

.card:last-child { border-right: none; }
.card:hover { background: var(--accent-dim); }
.card:hover .card-arrow { opacity: 1; transform: translateX(0); }

.card-kaomoji {
  font-family: system-ui, sans-serif;
  font-size: 0.95rem;
  color: var(--green);
  margin-bottom: 0.9rem;
  display: block;
  opacity: 0.9;
}

.card-number {
  font-size: 0.54rem;
  letter-spacing: 0.24em;
  color: var(--accent-bright);
  margin-bottom: 0.8rem;
}

.card-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.card-desc {
  font-size: 0.72rem;
  line-height: 1.75;
  color: var(--text-card-desc);
}

.card-arrow {
  position: absolute;
  bottom: 1.4rem; right: 1.6rem;
  font-size: 0.58rem;
  color: var(--accent-bright);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.25s, transform 0.25s;
}

/* ── STATUS BAR ── */
.status-bar {
  padding: 0.7rem 3.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  border-top: 1px solid rgba(123,94,167,0.2);
  flex-wrap: wrap;
  gap: 0.8rem;
  text-transform: uppercase;
}

.status-left { display: flex; gap: 2rem; align-items: center; }

.status-dot {
  display: inline-block;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent-bright);
  margin-right: 0.5rem;
  animation: pulse 2.4s infinite;
  box-shadow: 0 0 6px var(--accent);
}

.status-right { opacity: 0.3; }

/* ── KEYFRAMES ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.2; }
}

/* ── HAMBURGER ── */
.hamburger {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: none;
  border: 1px solid rgba(74,140,92,0.4);
  padding: 0.45rem 0.65rem;
  cursor: pointer;
  z-index: 100;
}

.hamburger-bars { display: flex; flex-direction: column; gap: 4px; }

.hamburger-bar {
  width: 20px; height: 2px;
  background: var(--green);
  transition: transform 0.25s, opacity 0.25s;
  display: block;
}

.hamburger.open .hamburger-bar:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger.open .hamburger-bar:nth-child(2) { opacity: 0; }
.hamburger.open .hamburger-bar:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ── NAV DRAWER (mobile only) ── */
.nav-drawer {
  display: none;
  position: fixed;
  top: 0; right: 0;
  width: 220px; height: 100vh;
  background: rgba(8,8,8,0.97);
  border-left: 1px solid rgba(74,140,92,0.25);
  z-index: 99;
  flex-direction: column;
  justify-content: flex-start;
  padding: 3rem 2rem;
  gap: 0.5rem;
  transform: translateX(100%);
  transition: transform 0.3s ease;
}

.nav-drawer.open { transform: translateX(0); }

.nav-drawer a {
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.65rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: color 0.2s;
}

.nav-drawer a::before { content: '//'; margin-right: 0.4em; color: var(--accent); }
.nav-drawer a:hover { color: var(--green); }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .sys-bar, nav, .hero, .status-bar { padding-left: 1.4rem; padding-right: 1.4rem; }
  nav::after { left: 1.4rem; right: 1.4rem; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .nav-drawer { display: flex; }
  .cards { grid-template-columns: 1fr; }
  .card { border-right: none; border-bottom: 1px solid var(--glass-border); }
  .hero-jp { display: none; }
  .hero-title { font-size: clamp(1.4rem, 6vw, 2.4rem); }
  .zh-3, .zh-4, .zh-6, .zh-7 { display: none; }
  .zh-1 { left: 5%;  }
  .zh-2 { left: 25%; }
  .zh-5 { left: 55%; }
  .zh-8 { left: 80%; }

  .sys-bar {
    font-size: 0.48rem;
    letter-spacing: 0.1em;
    padding-top: 0.35rem;
    padding-bottom: 0.35rem;
  }
  .sys-bar-left { gap: 0.9rem; }
}

/* ── LANGUAGE SWITCHER ── */
.nav-lang-item {
  list-style: none;
}

.lang-switcher-inline {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  background: transparent;
  border: 1px solid rgba(123,94,167,0.4);
  color: var(--text-muted);
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.63rem;
  letter-spacing: 0.16em;
  padding: 0.3rem 0.6rem;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

.lang-btn:hover,
.lang-btn.open {
  border-color: var(--accent-bright);
  color: var(--accent-bright);
}

.lang-btn-arrow {
  font-size: 0.45rem;
  transition: transform 0.2s;
}

.lang-btn.open .lang-btn-arrow { transform: rotate(180deg); }

.lang-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: rgba(8,8,8,0.97);
  border: 1px solid rgba(123,94,167,0.3);
  display: flex;
  flex-direction: column;
  min-width: 140px;
  z-index: 200;
  transform: translateY(-4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
}

.lang-dropdown.open {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

.lang-option {
  background: none;
  border: none;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  color: var(--text-muted);
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-align: left;
  padding: 0.6rem 0.9rem;
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
}

.lang-option:last-child { border-bottom: none; }
.lang-option:hover { color: var(--accent-bright); background: rgba(123,94,167,0.08); }
.lang-option-active { color: var(--green); }

@media (max-width: 768px) {
  .nav-lang-item { display: none; }
}

/* ── MOBILE DRAWER LANGUAGE SELECTOR ── */
.drawer-lang {
  margin-top: auto;
  padding-top: 1.4rem;
  border-top: 1px solid rgba(123,94,167,0.18);
}

.drawer-lang-label {
  font-size: 0.52rem;
  letter-spacing: 0.22em;
  color: var(--accent);
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.6rem;
}

.drawer-lang-options {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.drawer-lang-options .lang-option {
  text-align: left;
  padding: 0.6rem 0;
  border: none;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
}

.drawer-lang-options .lang-option::before {
  content: '//';
  margin-right: 0.4em;
  color: var(--accent);
}