:root {
  --bg: #f8f6f1;
  --surface: #ffffff;
  --surface-raised: #f2f0eb;
  --border: #e2dfd8;
  --border-glow: #d4cfc5;
  --text: #1a1a1a;
  --text-muted: #7a7468;
  --accent-orange: #e8840c;
  --accent-teal: #0a7e6e;
  --accent-gold: #c87000;
  --accent-green: #1a8a4a;
  --accent-red: #c43b3b;
}

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

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Ambient background glow */
.bg-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.bg-glow::before {
  content: '';
  position: absolute;
  top: -20%;
  left: -10%;
  width: 50%;
  height: 50%;
  background: radial-gradient(ellipse, rgba(232, 132, 12, 0.06) 0%, transparent 70%);
  animation: drift1 20s ease-in-out infinite;
}

.bg-glow::after {
  content: '';
  position: absolute;
  bottom: -20%;
  right: -10%;
  width: 60%;
  height: 60%;
  background: radial-gradient(ellipse, rgba(10, 126, 110, 0.04) 0%, transparent 70%);
  animation: drift2 25s ease-in-out infinite;
}

@keyframes drift1 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(5%, 10%); }
}

@keyframes drift2 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-5%, -8%); }
}

.content-wrapper {
  position: relative;
  z-index: 1;
}

/* ─── PRICE TICKER ─── */
.price-ticker {
  display: flex;
  justify-content: center;
  gap: 2rem;
  padding: 0.6rem 1rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  font-family: 'Space Mono', monospace;
  font-size: 0.75rem;
}

.ticker-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ticker-symbol {
  color: var(--text-muted);
  font-weight: 700;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
}

.ticker-price {
  color: var(--text);
  font-weight: 700;
}

.ticker-change {
  font-size: 0.65rem;
  font-weight: 700;
}

.ticker-change.up { color: var(--accent-green); }
.ticker-change.down { color: var(--accent-red); }

@media (max-width: 480px) {
  .price-ticker { gap: 1rem; font-size: 0.65rem; }
  .ticker-symbol { font-size: 0.6rem; }
}

/* ─── HEADER ─── */
header {
  padding: 2.5rem 2rem 2rem;
  text-align: center;
  position: relative;
  border-bottom: 1px solid var(--border);
}

header::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-orange), transparent);
}

.logo {
  font-family: 'Chakra Petch', sans-serif;
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  position: relative;
  display: inline-block;
}

.logo .btc { color: var(--accent-orange); }
.logo .hk { color: var(--accent-teal); }
.logo .dot { color: var(--text-muted); }

.tagline {
  font-family: 'Space Mono', monospace;
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: 0.5rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.lang-toggle {
  position: absolute;
  top: 2.5rem;
  right: 2rem;
  background: transparent;
  color: var(--accent-teal);
  border: 1px solid var(--border);
  padding: 0.35rem 0.75rem;
  border-radius: 4px;
  cursor: pointer;
  font-family: 'Space Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  transition: all 0.3s;
}

.lang-toggle:hover {
  background: rgba(10, 126, 110, 0.06);
  border-color: var(--accent-teal);
}

/* ─── FILTERS ─── */
.filters {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  padding: 2rem 1rem;
  flex-wrap: wrap;
}

.filters button {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 0.45rem 1.2rem;
  border-radius: 2px;
  cursor: pointer;
  font-family: 'Space Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: all 0.3s;
  position: relative;
}

.filters button:hover {
  color: var(--accent-teal);
  border-color: var(--accent-teal);
}

.filters button.active {
  color: #fff;
  border-color: var(--accent-teal);
  background: var(--accent-teal);
}

/* ─── SUB-FILTERS (SFC checkbox) ─── */
.sub-filters {
  display: flex;
  justify-content: center;
  padding: 0 1rem 1.25rem;
}

.sfc-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-family: 'Space Mono', monospace;
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  user-select: none;
  transition: color 0.2s;
}

.sfc-toggle:hover {
  color: var(--accent-teal);
}

.sfc-toggle input {
  display: none;
}

.sfc-toggle .checkmark {
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--border);
  border-radius: 3px;
  position: relative;
  flex-shrink: 0;
  transition: all 0.2s;
}

.sfc-toggle span[data-i18n] {
  line-height: 18px;
}

.sfc-toggle input:checked + .checkmark {
  background: var(--accent-teal);
  border-color: var(--accent-teal);
}

.sfc-toggle input:checked + .checkmark::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.sfc-toggle input:checked ~ span:last-child {
  color: var(--accent-teal);
}

/* ─── MAIN GRID ─── */
main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

/* ─── PLATFORM CARD ─── */
.platform-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0;
  margin-bottom: 1.25rem;
  position: relative;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  opacity: 0;
  transform: translateY(20px);
  animation: cardReveal 0.6s ease forwards;
}

@keyframes cardReveal {
  to { opacity: 1; transform: translateY(0); }
}

/* Top accent line */
.platform-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-orange), transparent);
  opacity: 0;
  transition: opacity 0.4s;
}

.platform-card:hover {
  border-color: var(--border-glow);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
  transform: translateY(-2px);
}

.platform-card:hover::before {
  opacity: 1;
}

.card-inner {
  padding: 1.5rem 1.75rem;
}

.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.card-identity {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.card-logo {
  width: 44px;
  height: 44px;
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Chakra Petch', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.card-logo img {
  display: block;
}

.card-name {
  font-family: 'Chakra Petch', sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}

.card-type {
  font-family: 'Space Mono', monospace;
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-top: 0.15rem;
}

.card-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent-orange);
  color: #fff;
  text-decoration: none;
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--accent-orange);
  border-radius: 2px;
  font-family: 'Space Mono', monospace;
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: all 0.3s;
  white-space: nowrap;
  flex-shrink: 0;
}

.card-cta:hover {
  background: var(--accent-gold);
  border-color: var(--accent-gold);
  box-shadow: 0 2px 10px rgba(232, 132, 12, 0.2);
  color: #fff;
}

.card-cta .arrow {
  transition: transform 0.3s;
}

.card-cta:hover .arrow {
  transform: translateX(3px);
}

/* Badges */
.badges {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.badge {
  font-family: 'Space Mono', monospace;
  font-size: 0.6rem;
  padding: 0.2rem 0.55rem;
  border-radius: 1px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: rgba(232, 132, 12, 0.08);
  color: var(--accent-orange);
  border: 1px solid rgba(232, 132, 12, 0.2);
}

.badge.onramp {
  background: rgba(26, 138, 74, 0.07);
  color: var(--accent-green);
  border-color: rgba(26, 138, 74, 0.2);
}

.badge.offramp {
  background: rgba(196, 59, 59, 0.07);
  color: var(--accent-red);
  border-color: rgba(196, 59, 59, 0.2);
}

.badge.licensed {
  background: rgba(10, 126, 110, 0.07);
  color: var(--accent-teal);
  border-color: rgba(10, 126, 110, 0.2);
}

/* Description */
.card-description {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.65;
  margin-bottom: 1.25rem;
}

/* Detail grid */
.card-details {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}

.detail-item {
  background: var(--surface-raised);
  padding: 0.75rem 1rem;
}

.detail-label {
  font-family: 'Space Mono', monospace;
  color: var(--text-muted);
  font-size: 0.55rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.25rem;
}

.detail-value {
  font-family: 'Chakra Petch', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text);
}

/* ─── DISCLAIMER ─── */
.disclaimer {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 2.5rem 1.5rem;
  border-top: 1px solid var(--border);
  max-width: 650px;
  margin: 0 auto;
  line-height: 1.7;
}

.disclaimer strong {
  color: var(--accent-red);
}

/* ─── FOOTER ─── */
footer {
  text-align: center;
  padding: 1.5rem;
  font-family: 'Space Mono', monospace;
  color: var(--text-muted);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.footer-icons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.footer-icons a {
  color: var(--text-muted);
  transition: color 0.2s;
  display: flex;
  align-items: center;
}

.footer-icons a:hover {
  color: var(--accent-orange);
}

/* ─── RESPONSIVE ─── */
@media (max-width: 700px) {
  .logo { font-size: 2.2rem; }
  .lang-toggle { position: static; margin-top: 1rem; display: inline-block; }
  header { padding-bottom: 1.5rem; }
  .card-top { flex-direction: column; gap: 1rem; }
  .card-details { grid-template-columns: 1fr; }
  .card-inner { padding: 1.25rem; }
}

@media (max-width: 480px) {
  .logo { font-size: 1.8rem; }
  .tagline { font-size: 0.65rem; }
}