/*
Theme Name: NAC Blockchain
Theme URI: https://newassetchain.io
Author: NAC Team
Author URI: https://newassetchain.io
Description: New AssetChain 官方主题 - 全球首个 RWA 专用公链。基于 CBPP 共识，参与即是认可，节点产生区块，交易决定区块大小。
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 8.0
License: Proprietary
License URI: https://newassetchain.io/license
Text Domain: nac-blockchain
Tags: blockchain, rwa, dark, responsive
*/

/* ============================================
   NAC Blockchain Theme - Core Styles
   Design: Dark theme, centered navbar, gold/green accents
   ============================================ */

:root {
  --nac-bg: #0a0a0f;
  --nac-bg-secondary: #0f0f1a;
  --nac-bg-card: #12121f;
  --nac-primary: #f0b429;      /* Gold - XTZH color */
  --nac-secondary: #22c55e;    /* Green - participation/node color */
  --nac-accent: #3b82f6;       /* Blue - tech accent */
  --nac-text: #e2e8f0;
  --nac-text-muted: #94a3b8;
  --nac-border: rgba(255,255,255,0.08);
  --nac-gradient: linear-gradient(135deg, #f0b429 0%, #f59e0b 50%, #d97706 100%);
  --nac-gradient-green: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
  --nac-shadow: 0 4px 24px rgba(0,0,0,0.4);
  --nac-radius: 12px;
  --nac-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --nac-font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --nav-height: 72px;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--nac-font);
  background: var(--nac-bg);
  color: var(--nac-text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; }
ul { list-style: none; }

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.nac-section-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  background: linear-gradient(135deg, #fff 0%, var(--nac-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
}

.nac-section-subtitle {
  font-size: 1.125rem;
  color: var(--nac-text-muted);
  max-width: 600px;
  margin: 0 auto 3rem;
}

/* ============================================
   LAYOUT
   ============================================ */
.nac-container {
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
  padding: 0 2rem;
}

.nac-section {
  padding: 5rem 0;
}

/* ============================================
   NAVBAR - CENTERED LAYOUT
   ============================================ */
.nac-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--nac-border);
  transition: all 0.3s ease;
}

.nac-navbar.scrolled {
  background: rgba(10, 10, 15, 0.97);
  box-shadow: 0 2px 20px rgba(0,0,0,0.5);
}

.nac-navbar-inner {
  width: 100%;
  padding: 0 2.5rem;
  height: 100%;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
}

/* Logo - Left */
.nac-navbar-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
  color: #fff;
  justify-self: start;
}

.nac-navbar-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: var(--nac-gradient);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 900;
  color: #000;
  flex-shrink: 0;
}

.nac-navbar-logo .logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.nac-navbar-logo .logo-text span:first-child {
  font-size: 1rem;
  font-weight: 800;
  color: #fff;
}

.nac-navbar-logo .logo-text span:last-child {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--nac-primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Navigation Links - CENTER */
.nac-navbar-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  justify-self: center;
}

.nac-navbar-nav a {
  padding: 0.5rem 0.875rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--nac-text-muted);
  border-radius: 8px;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nac-navbar-nav a:hover,
.nac-navbar-nav a.active {
  color: #fff;
  background: rgba(255,255,255,0.06);
}

/* Right Actions */
.nac-navbar-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  justify-self: end;
}

/* XTZH Price Ticker in navbar */
.nac-price-ticker {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.875rem;
  background: rgba(240, 180, 41, 0.1);
  border: 1px solid rgba(240, 180, 41, 0.25);
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--nac-primary);
  cursor: default;
}

.nac-price-ticker .ticker-label {
  color: var(--nac-text-muted);
  font-weight: 400;
}

.nac-price-ticker .ticker-dot {
  width: 6px;
  height: 6px;
  background: var(--nac-secondary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

/* Register Node Button */
.btn-register-node {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  background: var(--nac-gradient-green);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  text-decoration: none;
}

.btn-register-node:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(34, 197, 94, 0.4);
  color: #fff;
}

.btn-register-node svg {
  width: 14px;
  height: 14px;
}

/* Login Button */
.btn-login {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: transparent;
  color: var(--nac-text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 8px;
  border: 1px solid var(--nac-border);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-login:hover {
  color: #fff;
  border-color: rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.05);
}

/* Mobile hamburger */
.nac-navbar-mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 0.5rem;
  background: none;
  border: none;
}

.nac-navbar-mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--nac-text);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ============================================
   HERO SECTION
   ============================================ */
.nac-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  overflow: hidden;
}

.nac-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.nac-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
}

.nac-hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10,10,15,0.2) 0%,
    rgba(10,10,15,0.6) 50%,
    rgba(10,10,15,1) 100%
  );
}

.nac-hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

.nac-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 1rem;
  background: rgba(240, 180, 41, 0.1);
  border: 1px solid rgba(240, 180, 41, 0.3);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--nac-primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.nac-hero-title {
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  color: #fff;
}

.nac-hero-title .gradient-text {
  background: var(--nac-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nac-hero-desc {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--nac-text-muted);
  max-width: 640px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.nac-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 3rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  background: var(--nac-gradient);
  color: #000;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(240, 180, 41, 0.4);
  color: #000;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  background: rgba(255,255,255,0.05);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.15);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.3);
  transform: translateY(-1px);
  color: #fff;
}

.btn-green {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  background: rgba(34, 197, 94, 0.1);
  color: var(--nac-secondary);
  font-size: 1rem;
  font-weight: 600;
  border-radius: 12px;
  border: 1px solid rgba(34, 197, 94, 0.3);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-green:hover {
  background: rgba(34, 197, 94, 0.2);
  transform: translateY(-1px);
  color: var(--nac-secondary);
}

/* Hero Stats */
.nac-hero-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.nac-hero-stat {
  text-align: center;
}

.nac-hero-stat .stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--nac-primary);
  line-height: 1;
}

.nac-hero-stat .stat-label {
  font-size: 0.8rem;
  color: var(--nac-text-muted);
  margin-top: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ============================================
   XTZH PRICE BANNER
   ============================================ */
.nac-price-banner {
  background: linear-gradient(135deg, rgba(240,180,41,0.08) 0%, rgba(245,158,11,0.05) 100%);
  border-top: 1px solid rgba(240,180,41,0.15);
  border-bottom: 1px solid rgba(240,180,41,0.15);
  padding: 1rem 0;
  overflow: hidden;
}

.nac-price-banner-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
  padding: 0 1.5rem;
}

.nac-price-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nac-price-item .price-label {
  font-size: 0.8rem;
  color: var(--nac-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.nac-price-item .price-value {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--nac-primary);
  font-family: var(--nac-font-mono);
}

.nac-price-item .price-source {
  font-size: 0.7rem;
  color: var(--nac-secondary);
  padding: 0.125rem 0.5rem;
  background: rgba(34,197,94,0.1);
  border-radius: 4px;
}

/* ============================================
   REGISTER NODE BANNER
   ============================================ */
.nac-register-banner {
  background: linear-gradient(135deg, rgba(34,197,94,0.08) 0%, rgba(16,163,74,0.05) 100%);
  border: 1px solid rgba(34,197,94,0.2);
  border-radius: var(--nac-radius);
  padding: 2rem;
  text-align: center;
  margin: 2rem 0;
}

.nac-register-banner h3 {
  font-size: 1.5rem;
  color: #fff;
  margin-bottom: 0.5rem;
}

.nac-register-banner p {
  color: var(--nac-text-muted);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.nac-cbpp-laws {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.nac-cbpp-law {
  padding: 0.375rem 0.875rem;
  background: rgba(34,197,94,0.1);
  border: 1px solid rgba(34,197,94,0.2);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--nac-secondary);
  font-weight: 500;
}

/* ============================================
   INNOVATIONS SECTION
   ============================================ */
.nac-innovations {
  background: var(--nac-bg-secondary);
}

.nac-innovations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.nac-innovation-card {
  background: var(--nac-bg-card);
  border: 1px solid var(--nac-border);
  border-radius: var(--nac-radius);
  padding: 2rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.nac-innovation-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--nac-gradient);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.nac-innovation-card:hover {
  border-color: rgba(240,180,41,0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}

.nac-innovation-card:hover::before {
  opacity: 1;
}

.nac-innovation-icon {
  width: 48px;
  height: 48px;
  background: rgba(240,180,41,0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.5rem;
}

.nac-innovation-card h3 {
  font-size: 1.25rem;
  color: #fff;
  margin-bottom: 0.75rem;
}

.nac-innovation-card p {
  font-size: 0.9rem;
  color: var(--nac-text-muted);
  line-height: 1.7;
}

/* ============================================
   ROADMAP SECTION
   ============================================ */
.nac-roadmap {
  background: var(--nac-bg);
}

.nac-roadmap-timeline {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  position: relative;
}

.nac-roadmap-item {
  background: var(--nac-bg-card);
  border: 1px solid var(--nac-border);
  border-radius: var(--nac-radius);
  padding: 1.75rem;
  position: relative;
}

.nac-roadmap-item.active {
  border-color: rgba(240,180,41,0.4);
  background: rgba(240,180,41,0.04);
}

.nac-roadmap-item .roadmap-date {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--nac-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.nac-roadmap-item h3 {
  font-size: 1.1rem;
  color: #fff;
  margin-bottom: 0.5rem;
}

.nac-roadmap-item p {
  font-size: 0.875rem;
  color: var(--nac-text-muted);
  line-height: 1.6;
}

/* ============================================
   ECOSYSTEM SECTION
   ============================================ */
.nac-ecosystem {
  background: var(--nac-bg-secondary);
}

.nac-ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.nac-ecosystem-card {
  background: var(--nac-bg-card);
  border: 1px solid var(--nac-border);
  border-radius: var(--nac-radius);
  padding: 2rem;
}

.nac-ecosystem-card .eco-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.nac-ecosystem-card h3 {
  font-size: 1.1rem;
  color: #fff;
  margin-bottom: 1rem;
}

.nac-ecosystem-card ul {
  space-y: 0.5rem;
}

.nac-ecosystem-card li {
  font-size: 0.875rem;
  color: var(--nac-text-muted);
  padding: 0.375rem 0;
  border-bottom: 1px solid var(--nac-border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nac-ecosystem-card li::before {
  content: '✓';
  color: var(--nac-secondary);
  font-weight: 700;
  font-size: 0.75rem;
}

/* ============================================
   FOOTER
   ============================================ */
.nac-footer {
  background: #050508;
  border-top: 1px solid var(--nac-border);
  padding: 4rem 0 2rem;
}

.nac-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.nac-footer-brand p {
  font-size: 0.875rem;
  color: var(--nac-text-muted);
  margin-top: 1rem;
  line-height: 1.7;
  max-width: 280px;
}

.nac-footer-col h4 {
  font-size: 0.875rem;
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.25rem;
}

.nac-footer-col ul li {
  margin-bottom: 0.625rem;
}

.nac-footer-col ul li a {
  font-size: 0.875rem;
  color: var(--nac-text-muted);
  transition: color 0.2s ease;
}

.nac-footer-col ul li a:hover {
  color: var(--nac-primary);
}

.nac-footer-bottom {
  border-top: 1px solid var(--nac-border);
  padding-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.nac-footer-bottom p {
  font-size: 0.8rem;
  color: var(--nac-text-muted);
}

.nac-footer-laws {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.nac-footer-laws span {
  font-size: 0.75rem;
  color: rgba(34,197,94,0.6);
  padding: 0.25rem 0.625rem;
  border: 1px solid rgba(34,197,94,0.15);
  border-radius: 4px;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .nac-navbar-inner {
    grid-template-columns: auto 1fr auto;
  }
  .nac-navbar-nav {
    display: none;
  }
  .nac-navbar-mobile-toggle {
    display: flex;
  }
  .nac-footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root { --nav-height: 64px; }
  .nac-navbar-inner {
    grid-template-columns: 1fr auto;
    padding: 0 1rem;
  }
  .nac-price-ticker { display: none; }
  .nac-hero-stats { gap: 1.5rem; }
  .nac-footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .nac-footer-bottom { flex-direction: column; text-align: center; }
  .nac-price-banner-inner { gap: 1.5rem; }
}

/* Mobile Menu */
.nac-mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10,10,15,0.98);
  z-index: 999;
  padding: 2rem 1.5rem;
  flex-direction: column;
  gap: 0.5rem;
  overflow-y: auto;
}

.nac-mobile-menu.open {
  display: flex;
}

.nac-mobile-menu a {
  padding: 1rem;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--nac-text-muted);
  border-radius: 8px;
  transition: all 0.2s ease;
  border-bottom: 1px solid var(--nac-border);
}

.nac-mobile-menu a:hover {
  color: #fff;
  background: rgba(255,255,255,0.05);
}

.nac-mobile-menu .mobile-register-btn {
  margin-top: 1rem;
  padding: 1rem;
  background: var(--nac-gradient-green);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 12px;
  text-align: center;
  border: none;
}

/* Loading skeleton */
.skeleton {
  background: linear-gradient(90deg, rgba(255,255,255,0.05) 25%, rgba(255,255,255,0.1) 50%, rgba(255,255,255,0.05) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: 4px;
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}