:root {
  --bg: #050b14;
  --bg-2: #0a1221;
  --card: rgba(255, 255, 255, 0.04);
  --card-hover: rgba(255, 255, 255, 0.07);
  --text: #e2e8f0;
  --muted: #94a3b8;
  --primary: #0ea5e9;
  --primary-2: #2563eb;
  --accent: #22d3ee;
  --border: rgba(255, 255, 255, 0.1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

button {
  font-family: inherit;
  cursor: pointer;
}

/* Particle canvas */
#network-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* Layout */
.section {
  position: relative;
  z-index: 10;
  padding: 6rem 0;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.text-center {
  text-align: center;
}

/* Utilities */
.gradient-text {
  background: linear-gradient(135deg, #38bdf8 0%, #2563eb 50%, #06b6d4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.glass {
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
}

.card {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.02) 100%);
  border: 1px solid var(--border);
  border-radius: 1rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(34, 211, 238, 0.3);
}

.grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(56, 189, 248, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.4;
}

.radial-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(37, 99, 235, 0.15), transparent 50%);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 9999px;
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
  color: white;
  box-shadow: 0 0 25px rgba(6, 182, 212, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 35px rgba(6, 182, 212, 0.4);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.05);
  color: white;
  border: 1px solid var(--border);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--accent);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: all 0.3s ease;
  padding: 1rem 0;
}

.header.scrolled {
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 0;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo img {
  height: 2.5rem;
  width: auto;
}

.logo-wide {
  height: 2.75rem !important;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1;
}

.logo-sub {
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--accent);
  line-height: 1;
  margin-top: 0.2rem;
}

.nav-links {
  display: flex;
  gap: 0.25rem;
}

.nav-links a {
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  color: var(--muted);
  transition: all 0.2s;
}

.nav-links a:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-admin {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--muted);
  background: transparent;
  border: none;
  font-size: 0.875rem;
  padding: 0.5rem 0.75rem;
  border-radius: 9999px;
  transition: all 0.2s;
}

.nav-admin:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--accent);
}

.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  color: white;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding-top: 5rem;
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 900px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 1rem;
  border-radius: 9999px;
  border: 1px solid rgba(34, 211, 238, 0.2);
  background: rgba(34, 211, 238, 0.05);
  color: var(--accent);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}

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

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.hero h1 {
  font-size: clamp(2rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: 1.125rem;
  color: var(--muted);
  max-width: 700px;
  margin: 0 auto 2.5rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.hero-stat {
  padding: 1.25rem;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.hero-stat svg {
  width: 2rem;
  height: 2rem;
  color: var(--accent);
  flex-shrink: 0;
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: white;
  line-height: 1;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.25rem;
}

/* Section headers */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 1rem;
  border-radius: 9999px;
  border: 1px solid rgba(34, 211, 238, 0.2);
  background: rgba(34, 211, 238, 0.05);
  color: var(--accent);
  font-size: 0.75rem;
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: white;
  margin-bottom: 1rem;
}

.section-desc {
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.about-item {
  display: flex;
  gap: 1.25rem;
  padding: 1.5rem;
}

.about-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  background: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.2);
}

.about-icon svg {
  width: 1.5rem;
  height: 1.5rem;
  color: white;
}

.about-item h3 {
  color: white;
  margin-bottom: 0.25rem;
}

.about-item p {
  color: var(--muted);
  font-size: 0.9rem;
}

.about-showcase {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.showcase-bg {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.2) 0%, transparent 70%);
  filter: blur(40px);
}

.showcase-card {
  position: relative;
  border-radius: 1.5rem;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  padding: 2rem;
  width: 100%;
  max-width: 420px;
  backdrop-filter: blur(10px);
}

.showcase-card img {
  width: 100%;
  height: auto;
  margin-bottom: 1.5rem;
}

.showcase-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.showcase-stat {
  border-radius: 1rem;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  padding: 1rem;
  text-align: center;
}

.showcase-stat .value {
  font-size: 1.5rem;
  font-weight: 700;
}

.showcase-stat:nth-child(1) .value { color: var(--accent); }
.showcase-stat:nth-child(2) .value { color: #60a5fa; }
.showcase-stat:nth-child(3) .value { color: var(--accent); }
.showcase-stat:nth-child(4) .value { color: #60a5fa; }

.showcase-stat .label {
  font-size: 0.75rem;
  color: var(--muted);
}

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.feature-card {
  padding: 1.75rem;
}

.feature-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  border: 1px solid rgba(34, 211, 238, 0.2);
  background: rgba(34, 211, 238, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.feature-icon svg {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--accent);
}

.feature-card h3 {
  color: white;
  margin-bottom: 0.5rem;
}

.feature-card p {
  color: var(--muted);
  font-size: 0.9rem;
}

/* Onboarding */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
}

.step-card {
  padding: 1.75rem;
  position: relative;
}

.step-number {
  position: absolute;
  right: 1.25rem;
  top: 1.25rem;
  font-size: 2rem;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.05);
}

.step-arrow {
  position: absolute;
  right: -1.25rem;
  top: 50%;
  transform: translateY(-50%);
  color: rgba(255, 255, 255, 0.1);
  font-size: 1.5rem;
  display: none;
}

.step-card:not(:last-child) .step-arrow {
  display: block;
}

.step-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  background: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.2);
}

.step-icon svg {
  width: 1.5rem;
  height: 1.5rem;
  color: white;
}

.step-card h3 {
  color: white;
  margin-bottom: 0.5rem;
}

.step-card p {
  color: var(--muted);
  font-size: 0.85rem;
}

.onboarding-cta {
  margin-top: 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 2rem;
  border-radius: 1.5rem;
  border: 1px solid var(--border);
  background: linear-gradient(90deg, rgba(37, 99, 235, 0.1) 0%, rgba(34, 211, 238, 0.1) 100%);
}

.onboarding-cta h3 {
  color: white;
  font-size: 1.25rem;
}

.onboarding-cta p {
  color: var(--muted);
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: start;
}

.contact-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.contact-item {
  padding: 1.25rem;
}

.contact-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.5rem;
  background: rgba(34, 211, 238, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.contact-icon svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--accent);
}

.contact-label {
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 0.25rem;
}

.contact-value {
  color: white;
  font-weight: 600;
  font-size: 0.95rem;
}

.contact-desc {
  font-size: 0.75rem;
  color: #64748b;
  margin-top: 0.25rem;
}

.contact-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.75rem;
  padding: 0.45rem 1rem;
  border-radius: 9999px;
  background: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
  color: white;
  font-size: 0.8rem;
  font-weight: 500;
  transition: all 0.3s ease;
  box-shadow: 0 0 18px rgba(6, 182, 212, 0.25);
}

.contact-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 28px rgba(6, 182, 212, 0.4);
}

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

.qr-card {
  padding: 1.25rem;
  text-align: center;
}

.qr-title {
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
  font-weight: 500;
}

.qr-frame {
  width: 100%;
  aspect-ratio: 1;
  max-width: 140px;
  margin: 0 auto 0.75rem;
  border-radius: 0.75rem;
  background: white;
  padding: 0.5rem;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.1);
}

.qr-placeholder {
  width: 100%;
  height: 100%;
  border: 2px dashed #cbd5e1;
  border-radius: 0.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #94a3b8;
  gap: 0.25rem;
}

.qr-placeholder svg {
  width: 2.5rem;
  height: 2.5rem;
  opacity: 0.5;
}

.qr-watermark {
  position: absolute;
  bottom: 0.75rem;
  right: 0.75rem;
  width: 1.25rem;
  height: 1.25rem;
  opacity: 0.2;
  filter: grayscale(100%);
}

.qr-subtitle {
  font-size: 0.7rem;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.qr-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.6rem;
  border-radius: 9999px;
  background: rgba(34, 211, 238, 0.1);
  color: var(--accent);
  font-size: 0.65rem;
}

.qr-badge span {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2s infinite;
}

/* Footer */
.footer {
  position: relative;
  z-index: 10;
  border-top: 1px solid var(--border);
  background: rgba(2, 6, 23, 0.8);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.footer-brand img {
  height: 2rem;
  width: auto;
}

.footer-logo-wide {
  height: 2.25rem !important;
}

.footer-brand span {
  font-size: 1.125rem;
  font-weight: 700;
  color: white;
}

.footer p {
  color: var(--muted);
  font-size: 0.9rem;
  max-width: 300px;
}

.footer h4 {
  color: white;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a,
.footer-links button {
  color: var(--muted);
  font-size: 0.875rem;
  background: transparent;
  border: none;
  padding: 0;
  transition: color 0.2s;
}

.footer-links a:hover,
.footer-links button:hover {
  color: var(--accent);
}

.admin-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--muted);
  font-size: 0.875rem;
  transition: all 0.2s;
}

.admin-btn:hover {
  border-color: rgba(34, 211, 238, 0.3);
  color: var(--accent);
}

.footer-contact {
  list-style: none;
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  color: var(--muted);
  font-size: 0.875rem;
}

.footer-contact svg {
  color: var(--accent);
  flex-shrink: 0;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  color: #64748b;
  font-size: 0.75rem;
}

.footer-divider {
  opacity: 0.4;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Mobile menu */
.mobile-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.5rem;
}

.mobile-nav.open {
  display: block;
}

.mobile-nav a,
.mobile-nav button {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem;
  color: var(--muted);
  text-align: left;
  background: transparent;
  border: none;
  border-radius: 0.5rem;
  transition: all 0.2s;
}

.mobile-nav a:hover,
.mobile-nav button:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--accent);
}

/* Admin login */
.admin-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  padding: 2rem;
}

.admin-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 4rem 0 2rem;
}

.admin-back {
  position: absolute;
  top: 2rem;
  left: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--muted);
  transition: all 0.2s;
  z-index: 10;
}

.admin-back:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--accent);
}

.admin-card {
  width: 100%;
  max-width: 420px;
  border-radius: 1.5rem;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(20px);
  padding: 2.5rem;
  box-shadow: 0 0 40px rgba(6, 182, 212, 0.1);
}

.admin-header {
  text-align: center;
  margin-bottom: 2rem;
}

.admin-avatar {
  width: 5rem;
  height: 5rem;
  border-radius: 50%;
  background: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
  box-shadow: 0 0 30px rgba(6, 182, 212, 0.3);
  overflow: hidden;
}

.admin-avatar img {
  width: 82%;
  height: 82%;
  object-fit: contain;
}

.admin-avatar svg {
  width: 2.5rem;
  height: 2.5rem;
  color: white;
}

.admin-footer {
  width: 100%;
  text-align: center;
  padding: 1.5rem 0;
  color: #64748b;
  font-size: 0.75rem;
}

.admin-copyright {
  display: none;
}

.admin-card h1 {
  font-size: 1.5rem;
  color: white;
  margin-bottom: 0.25rem;
}

.admin-card p {
  color: var(--muted);
  font-size: 0.875rem;
}

.admin-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.admin-field label {
  display: block;
  font-size: 0.875rem;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.admin-input-wrap {
  position: relative;
}

.admin-input-wrap svg {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1rem;
  height: 1rem;
  color: #64748b;
}

.admin-input {
  width: 100%;
  padding: 0.875rem 1rem 0.875rem 2.5rem;
  border-radius: 0.75rem;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.3);
  color: white;
  font-size: 0.95rem;
  outline: none;
  transition: all 0.2s;
}

.admin-input::placeholder {
  color: #64748b;
}

.admin-input:focus {
  border-color: rgba(34, 211, 238, 0.5);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.1);
}

.admin-input.with-toggle {
  padding-right: 2.5rem;
}

.admin-toggle {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  color: #64748b;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.admin-extras {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
}

.admin-remember {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--muted);
  cursor: pointer;
}

.admin-remember input {
  width: 1rem;
  height: 1rem;
  accent-color: var(--primary);
}

.admin-forgot {
  color: var(--accent);
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 0.8rem;
}

.admin-forgot:hover {
  text-decoration: underline;
}

.admin-submit {
  width: 100%;
  padding: 1rem;
  border-radius: 0.75rem;
  border: none;
  background: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
  color: white;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.25);
}

.admin-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(6, 182, 212, 0.4);
}

.admin-tip {
  margin-top: 1.5rem;
  text-align: center;
  font-size: 0.75rem;
  color: #64748b;
}

.admin-copyright {
  margin-top: 2rem;
  text-align: center;
  font-size: 0.75rem;
  color: #64748b;
}

/* Responsive */
@media (max-width: 1024px) {
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .step-arrow {
    display: none !important;
  }
}

@media (max-width: 768px) {
  .nav-links,
  .header-actions {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

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

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

  .onboarding-cta {
    flex-direction: column;
    text-align: center;
  }

  .contact-info,
  .qr-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
  }
}