/* ========================================
   Trust冷钱包 - 全站共享样式表
   深空蓝到极光紫科技感设计
   ======================================== */

/* CSS Variables */
:root {
  --deep-blue: #0a0e27;
  --space-blue: #0f1642;
  --aurora-purple: #6c3ce0;
  --aurora-light: #a855f7;
  --neon-blue: #3b82f6;
  --neon-cyan: #06b6d4;
  --accent-green: #10b981;
  --accent-red: #ef4444;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --glass-bg: rgba(15, 22, 66, 0.6);
  --glass-border: rgba(108, 60, 224, 0.2);
  --glass-shadow: rgba(0, 0, 0, 0.3);
  --card-bg: rgba(15, 22, 66, 0.4);
  --gradient-primary: linear-gradient(135deg, #0a0e27 0%, #1a1055 50%, #6c3ce0 100%);
  --gradient-card: linear-gradient(135deg, rgba(15, 22, 66, 0.8), rgba(108, 60, 224, 0.15));
  --gradient-btn: linear-gradient(135deg, #6c3ce0, #3b82f6);
  --gradient-btn-hover: linear-gradient(135deg, #7c4cf0, #4b92ff);
  --font-main: 'Inter', 'PingFang SC', 'Microsoft YaHei', -apple-system, sans-serif;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
}

/* Reset & Base */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-main);
  background: var(--deep-blue);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
}

a {
  color: var(--neon-cyan);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--aurora-light);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Particle Background */
.particle-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: var(--gradient-primary);
  overflow: hidden;
}

.particle-bg::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(2px 2px at 20px 30px, rgba(168, 85, 247, 0.4), transparent),
    radial-gradient(2px 2px at 40px 70px, rgba(59, 130, 246, 0.3), transparent),
    radial-gradient(2px 2px at 50px 160px, rgba(6, 182, 212, 0.3), transparent),
    radial-gradient(2px 2px at 90px 40px, rgba(168, 85, 247, 0.4), transparent),
    radial-gradient(2px 2px at 130px 80px, rgba(59, 130, 246, 0.3), transparent),
    radial-gradient(2px 2px at 160px 120px, rgba(6, 182, 212, 0.2), transparent);
  background-size: 200px 200px;
  animation: particleFloat 20s linear infinite;
}

.particle-bg::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background:
    linear-gradient(90deg, transparent 49.5%, rgba(108, 60, 224, 0.03) 49.5%, rgba(108, 60, 224, 0.03) 50.5%, transparent 50.5%),
    linear-gradient(0deg, transparent 49.5%, rgba(108, 60, 224, 0.03) 49.5%, rgba(108, 60, 224, 0.03) 50.5%, transparent 50.5%);
  background-size: 60px 60px;
}

@keyframes particleFloat {
  0% { transform: translateY(0); }
  100% { transform: translateY(-200px); }
}

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ========== HEADER ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10, 14, 39, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  max-width: 1280px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-primary);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-btn);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.logo-icon::before {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border: 3px solid white;
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.logo-icon::after {
  content: '';
  position: absolute;
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 12px solid white;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
}

.logo span {
  background: linear-gradient(135deg, #a855f7, #3b82f6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Navigation */
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.main-nav a {
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--text-primary);
  background: rgba(108, 60, 224, 0.15);
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* Search Bar */
.search-bar {
  background: rgba(15, 22, 66, 0.5);
  border-bottom: 1px solid var(--glass-border);
  padding: 10px 0;
}

.search-wrapper {
  max-width: 600px;
  margin: 0 auto;
  position: relative;
  padding: 0 20px;
}

.search-wrapper input {
  width: 100%;
  padding: 12px 50px 12px 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  color: var(--text-primary);
  font-size: 0.9rem;
  outline: none;
  transition: all 0.3s ease;
}

.search-wrapper input:focus {
  border-color: var(--aurora-purple);
  box-shadow: 0 0 20px rgba(108, 60, 224, 0.2);
}

.search-wrapper input::placeholder {
  color: var(--text-muted);
}

.search-btn {
  position: absolute;
  right: 28px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--aurora-light);
  cursor: pointer;
  font-size: 1.1rem;
  padding: 8px;
}

.search-result-msg {
  display: none;
  text-align: center;
  padding: 10px;
  color: var(--neon-cyan);
  font-size: 0.85rem;
  animation: pulse 1.5s infinite;
}

/* Breadcrumb */
.breadcrumb {
  padding: 16px 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.breadcrumb a {
  color: var(--text-secondary);
}

.breadcrumb span {
  margin: 0 8px;
  color: var(--text-muted);
}

/* ========== HERO SECTION ========== */
.hero {
  padding: 80px 0 60px;
  text-align: center;
  position: relative;
}

.hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #f1f5f9, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

.hero-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: var(--gradient-btn);
  color: white;
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
}

.btn-primary:hover {
  background: var(--gradient-btn-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(108, 60, 224, 0.4);
  color: white;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
}

.btn-outline:hover {
  border-color: var(--aurora-purple);
  background: rgba(108, 60, 224, 0.1);
  color: white;
}

/* ========== GLASS CARDS ========== */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all 0.3s ease;
}

.glass-card:hover {
  border-color: rgba(108, 60, 224, 0.4);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* ========== SECTION STYLES ========== */
.section {
  padding: 70px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
  background: linear-gradient(135deg, #f1f5f9, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title p {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Grid Layouts */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

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

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

/* ========== DASHBOARD ========== */
.dashboard {
  padding: 40px 0;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.dash-card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
}

.dash-card .label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.dash-card .value {
  font-size: 1.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, #a855f7, #06b6d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.dash-card .change {
  font-size: 0.85rem;
  margin-top: 6px;
}

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

/* Animated counter */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes countUp {
  0% { opacity: 0; transform: translateY(10px); }
  100% { opacity: 1; transform: translateY(0); }
}

.animate-value {
  animation: countUp 0.6s ease-out;
}

/* ========== NEWS / ARTICLE CARDS ========== */
.news-card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.3s ease;
}

.news-card:hover {
  border-color: rgba(108, 60, 224, 0.4);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.news-card .card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 1px solid var(--glass-border);
}

.news-card .card-body {
  padding: 20px;
}

.news-card h4, .news-card h5, .news-card h6 {
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.5;
}

.news-card h4 { font-size: 1.1rem; }
.news-card h5 { font-size: 1rem; }
.news-card h6 { font-size: 0.95rem; }

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

.news-card .meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 14px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.tag {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(108, 60, 224, 0.15);
  color: var(--aurora-light);
  border-radius: 20px;
  font-size: 0.75rem;
  margin-right: 6px;
}

/* ========== VIDEO CARD ========== */
.video-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
}

.video-card .video-thumb {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.video-card .play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  width: 60px;
  height: 60px;
  background: rgba(108, 60, 224, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.video-card .play-btn::after {
  content: '';
  width: 0;
  height: 0;
  border-top: 12px solid transparent;
  border-bottom: 12px solid transparent;
  border-left: 18px solid white;
  margin-left: 4px;
}

.video-card:hover .play-btn {
  transform: translate(-50%, -50%) scale(1);
}

.video-card:hover .video-thumb {
  transform: scale(1.05);
}

.video-card .video-title {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px;
  background: linear-gradient(transparent, rgba(10, 14, 39, 0.9));
  font-size: 0.9rem;
  font-weight: 500;
}

/* ========== EXPERT CARDS ========== */
.expert-card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: all 0.3s ease;
}

.expert-card:hover {
  border-color: rgba(108, 60, 224, 0.4);
  transform: translateY(-4px);
}

.expert-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  margin: 0 auto 14px;
  background: var(--gradient-btn);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  font-weight: 700;
  color: white;
}

.expert-card h5 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.expert-card .role {
  font-size: 0.8rem;
  color: var(--aurora-light);
  margin-bottom: 10px;
}

.expert-card .bio {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ========== REVIEW CARDS ========== */
.review-card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all 0.3s ease;
}

.review-card:hover {
  border-color: rgba(108, 60, 224, 0.4);
}

.review-stars {
  color: #f59e0b;
  font-size: 0.9rem;
  margin-bottom: 10px;
  letter-spacing: 2px;
}

.review-card .review-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 14px;
  font-style: italic;
}

.review-card .reviewer {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.review-card .review-date {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ========== SHARE BUTTONS ========== */
.share-section {
  text-align: center;
  padding: 40px 0;
}

.share-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  color: var(--text-primary);
  transition: all 0.3s ease;
}

.share-btn:hover {
  transform: translateY(-2px);
  border-color: var(--aurora-purple);
}

.share-btn.wechat:hover { background: rgba(7, 193, 96, 0.2); }
.share-btn.weibo:hover { background: rgba(230, 22, 45, 0.2); }
.share-btn.douyin:hover { background: rgba(254, 44, 85, 0.2); }
.share-btn.bilibili:hover { background: rgba(0, 174, 236, 0.2); }

/* ========== STEP PROGRESS ========== */
.step-bar {
  display: flex;
  justify-content: center;
  gap: 0;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.step-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  cursor: pointer;
  border-bottom: 3px solid transparent;
  transition: all 0.3s ease;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
}

.step-item.active {
  color: var(--aurora-light);
  border-bottom-color: var(--aurora-purple);
}

.step-item:hover {
  color: var(--text-primary);
}

.step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(108, 60, 224, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
}

.step-item.active .step-num {
  background: var(--gradient-btn);
  color: white;
}

.step-content {
  display: none;
}

.step-content.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========== SVG ANIMATION ========== */
.svg-anim-container {
  max-width: 600px;
  margin: 30px auto;
}

.encryption-layer {
  fill: none;
  stroke: var(--aurora-purple);
  stroke-width: 2;
  stroke-dasharray: 300;
  stroke-dashoffset: 300;
  animation: drawLine 3s ease forwards;
}

.encryption-layer:nth-child(2) {
  stroke: var(--neon-blue);
  animation-delay: 0.5s;
}

.encryption-layer:nth-child(3) {
  stroke: var(--neon-cyan);
  animation-delay: 1s;
}

@keyframes drawLine {
  to { stroke-dashoffset: 0; }
}

/* ========== FOOTER ========== */
.site-footer {
  background: rgba(5, 7, 20, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid var(--glass-border);
  padding: 50px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .footer-logo {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-brand .footer-logo span {
  background: linear-gradient(135deg, #a855f7, #3b82f6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.7;
}

.footer-col h5 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  border-top: 1px solid var(--glass-border);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 16px;
}

/* ========== LAZY LOAD ========== */
.lazy {
  opacity: 0;
  transition: opacity 0.5s ease;
}

.lazy.loaded {
  opacity: 1;
}

/* ========== CONTENT STYLES ========== */
.article-content {
  max-width: 900px;
  margin: 0 auto;
  line-height: 1.8;
  font-size: 1rem;
}

.article-content h3 {
  font-size: 1.4rem;
  margin: 36px 0 16px;
  color: var(--text-primary);
}

.article-content h4 {
  font-size: 1.15rem;
  margin: 28px 0 12px;
  color: var(--aurora-light);
}

.article-content p {
  margin-bottom: 18px;
  color: var(--text-secondary);
}

.article-content ul, .article-content ol {
  margin: 16px 0;
  padding-left: 24px;
  color: var(--text-secondary);
}

.article-content li {
  margin-bottom: 8px;
}

.info-box {
  background: rgba(108, 60, 224, 0.1);
  border-left: 4px solid var(--aurora-purple);
  padding: 20px 24px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
}

.info-box p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* ========== FORUM STYLES ========== */
.forum-post {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
  transition: all 0.3s ease;
}

.forum-post:hover {
  border-color: rgba(108, 60, 224, 0.3);
}

.forum-post .post-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.forum-post .post-author {
  display: flex;
  align-items: center;
  gap: 10px;
}

.post-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--gradient-btn);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: white;
}

.forum-post .post-body {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

.forum-post .post-stats {
  display: flex;
  gap: 20px;
  margin-top: 14px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .dashboard-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  html { font-size: 15px; }

  .hero h1 { font-size: 2rem; }
  .hero .subtitle { font-size: 1rem; }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--glass-border);
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav a {
    padding: 12px 16px;
    width: 100%;
  }

  .mobile-toggle {
    display: flex;
  }

  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }

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

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

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

  .step-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .step-item {
    justify-content: center;
  }

  .share-btns {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.6rem; }
  .section-title h2 { font-size: 1.5rem; }
  .dashboard-grid { grid-template-columns: 1fr; }
  .dash-card .value { font-size: 1.4rem; }
  .container { padding: 0 16px; }
  .glass-card { padding: 20px; }
}

/* ========== UTILITY ========== */
.text-center { text-align: center; }
.text-gradient {
  background: linear-gradient(135deg, #a855f7, #3b82f6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.mt-1 { margin-top: 10px; }
.mt-2 { margin-top: 20px; }
.mt-3 { margin-top: 30px; }
.mb-1 { margin-bottom: 10px; }
.mb-2 { margin-bottom: 20px; }
.mb-3 { margin-bottom: 30px; }
.pt-1 { padding-top: 10px; }
.pb-1 { padding-bottom: 10px; }

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--deep-blue);
}

::-webkit-scrollbar-thumb {
  background: var(--aurora-purple);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--aurora-light);
}