:root {
  --container: 1180px;
  --color-primary: #1e6ee8;
  --color-primary-dark: #1456b8;
  --color-secondary: #f5f6fa;
  --color-text: #1a1a1a;
  --color-text-light: #666;
  --color-border: #e0e0e0;
  --color-success: #00a651;
  --color-warning: #ff9800;
  --color-danger: #d32f2f;
  --color-bg: #ffffff;
  --spacing: 32px;
  --radius: 12px;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: 16px;
}

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

.image-box,
.wallet-pack-media,
.drawer-media,
.preview-media,
.pack-bg,
.layer-image,
.drawer-image,
.security-image,
.scenario-image,
.network-image {
  overflow: visible;
  line-height: 0;
  padding: 0;
}

.image-box img,
.wallet-pack-media img,
.drawer-media img,
.preview-media img,
.pack-bg img,
.layer-image img,
.drawer-image img,
.security-image img,
.scenario-image img,
.network-image img {
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.container {
  width: min(100% - 32px, var(--container));
  margin-inline: auto;
}

/* Progress Bar */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(to right, var(--color-primary), var(--color-primary-dark));
  width: 0;
  z-index: 1000;
  transition: width 0.2s ease;
}

/* Header */
.wallet-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 0;
  transition: var(--transition);
}

.wallet-header.compact {
  padding: 8px 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.header-logo img {
  width: 40px;
  height: 40px;
  border-radius: 8px;
}

.logo-text {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
}

.header-title {
  flex: 1;
  text-align: center;
  font-size: 14px;
  color: var(--color-text-light);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header-tabs {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
}

.tab-btn {
  padding: 8px 16px;
  background: var(--color-secondary);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  transition: var(--transition);
}

.tab-btn:hover {
  background: var(--color-primary);
  color: white;
}

.tab-btn.active {
  background: var(--color-primary);
  color: white;
}

/* Mobile Wallet Button */
.mobile-wallet-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  border: none;
  cursor: pointer;
  font-size: 24px;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 90;
  box-shadow: 0 4px 16px rgba(30, 110, 232, 0.3);
  transition: var(--transition);
}

.mobile-wallet-btn:active {
  transform: scale(0.95);
}

/* Wallet Directory Modal */
.wallet-directory-modal {
  position: fixed;
  bottom: -100%;
  left: 0;
  right: 0;
  background: white;
  z-index: 95;
  border-radius: 24px 24px 0 0;
  max-height: 80vh;
  overflow-y: auto;
  transition: bottom 0.3s ease;
}

.wallet-directory-modal.active {
  bottom: 0;
}

.directory-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  border-bottom: 1px solid var(--color-border);
}

.directory-header h3 {
  font-size: 18px;
  font-weight: 600;
}

.close-btn {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--color-text);
}

.directory-nav {
  display: flex;
  flex-direction: column;
  padding: 16px;
  gap: 12px;
}

.directory-item {
  padding: 12px 16px;
  background: var(--color-secondary);
  border: none;
  border-radius: 8px;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.directory-item:active {
  background: var(--color-primary);
  color: white;
}

/* Sections */
main {
  padding: 0;
}

section {
  padding: 80px 0;
  border-bottom: 1px solid var(--color-border);
}

h1 {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.2;
  margin: 24px 0;
  color: var(--color-text);
}

h2 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 48px;
  text-align: center;
  color: var(--color-text);
}

h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
}

h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
}

p {
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 16px;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--color-secondary) 0%, rgba(30, 110, 232, 0.05) 100%);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-text {
  padding-right: 24px;
}

.hero-badge {
  display: inline-block;
  padding: 8px 16px;
  background: var(--color-primary);
  color: white;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
}

.hero-description {
  margin: 24px 0 32px 0;
  font-size: 18px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
}

.btn {
  padding: 14px 32px;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(30, 110, 232, 0.3);
}

.btn-secondary {
  background: var(--color-secondary);
  color: var(--color-text);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: white;
}

.hero-warning {
  display: flex;
  gap: 12px;
  padding: 16px;
  background: rgba(255, 152, 0, 0.1);
  border-radius: 8px;
  border-left: 4px solid var(--color-warning);
}

.warning-icon {
  font-size: 20px;
  flex-shrink: 0;
}

.hero-warning p {
  font-size: 14px;
  color: var(--color-text);
  margin: 0;
}

/* Hero Visual */
.hero-visual {
  position: relative;
}

.wallet-pack-cover {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
  aspect-ratio: 4 / 3;
}

.pack-bg {
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 16px;
}

.pack-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.pack-labels {
  position: absolute;
  top: 16px;
  left: 16px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.pack-label {
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.label-assets { background: rgba(30, 110, 232, 0.1); color: var(--color-primary); }
.label-account { background: rgba(0, 166, 81, 0.1); color: var(--color-success); }
.label-network { background: rgba(255, 152, 0, 0.1); color: var(--color-warning); }
.label-security { background: rgba(211, 47, 47, 0.1); color: var(--color-danger); }

/* Asset Section */
.assets-section {
  background: var(--color-secondary);
}

.layers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.layer-item {
  padding: 24px;
  background: white;
  border-radius: 12px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}

.layer-item:hover {
  border-color: var(--color-primary);
  box-shadow: 0 8px 16px rgba(30, 110, 232, 0.1);
}

.layer-badge {
  display: inline-block;
  padding: 4px 12px;
  background: var(--color-primary);
  color: white;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 12px;
}

.layer-item h3 {
  margin: 0;
  font-size: 18px;
}

.layers-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
  background: white;
  padding: 48px;
  border-radius: 16px;
}

.layers-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.layer-btn {
  padding: 12px 16px;
  background: var(--color-secondary);
  border: 2px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 500;
  text-align: left;
  display: flex;
  gap: 12px;
  align-items: center;
  transition: var(--transition);
  color: var(--color-text);
  font-size: 15px;
}

.layer-btn:hover {
  border-color: var(--color-primary);
  background: rgba(30, 110, 232, 0.05);
}

.layer-btn.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.layer-icon {
  font-size: 20px;
  flex-shrink: 0;
}

.layers-description {
  position: relative;
}

.layer-desc {
  display: none;
  animation: fadeIn 0.3s ease;
}

.layer-desc.active {
  display: block;
}

.layer-tip {
  padding: 12px;
  background: rgba(255, 152, 0, 0.1);
  border-radius: 6px;
  font-size: 14px;
  color: var(--color-text);
  margin: 16px 0;
  border-left: 4px solid var(--color-warning);
}

.layer-image {
  margin-top: 24px;
  border-radius: 8px;
  overflow: hidden;
}

.layer-image img {
  width: 100%;
  height: auto;
}

/* Drawers Section */
.drawers-section {
  background: white;
}

.drawers-cabinet {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.drawer-item {
  background: var(--color-secondary);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition);
}

.drawer-item.open {
  background: white;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.drawer-handle {
  width: 100%;
  padding: 24px;
  background: none;
  border: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: 60px 1fr 40px;
  gap: 24px;
  align-items: center;
  text-align: left;
  transition: var(--transition);
}

.drawer-item.open .drawer-handle {
  background: var(--color-primary);
  color: white;
}

.drawer-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.drawer-item.open .drawer-label {
  color: white;
}

.drawer-number {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}

.drawer-item.open .drawer-number {
  color: white;
}

.drawer-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
}

.drawer-item.open .drawer-title {
  color: white;
}

.drawer-icon {
  font-size: 20px;
  color: var(--color-text-light);
  transition: transform 0.3s ease;
}

.drawer-item.open .drawer-icon {
  color: white;
  transform: rotate(90deg);
}

.drawer-content {
  display: none;
  padding: 0 24px 24px 24px;
  animation: slideDown 0.3s ease;
}

.drawer-item.open .drawer-content {
  display: block;
}

.drawer-content h3 {
  margin-top: 0;
  color: var(--color-text);
}

.drawer-content p {
  font-size: 15px;
  margin-bottom: 12px;
}

.drawer-image {
  margin-top: 24px;
  border-radius: 8px;
  overflow: hidden;
}

.drawer-image img {
  width: 100%;
  height: auto;
  cursor: pointer;
}

/* Network Section */
.network-section {
  background: var(--color-secondary);
}

.storage-boxes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.storage-box {
  padding: 32px;
  background: white;
  border-radius: 12px;
  position: relative;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}

.storage-box:hover {
  border-color: var(--color-primary);
  box-shadow: 0 8px 24px rgba(30, 110, 232, 0.15);
}

.box-number {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.storage-box h3 {
  margin: 0 0 8px 0;
  font-size: 18px;
}

.storage-box p {
  font-size: 14px;
  margin: 0 0 16px 0;
}

.check-label {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(211, 47, 47, 0.1);
  color: var(--color-danger);
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
}

.box-details {
  display: none;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.storage-box.active .box-details {
  display: block;
}

.box-details ul {
  list-style: none;
  padding: 0;
}

.box-details li {
  font-size: 14px;
  color: var(--color-text-light);
  padding: 8px 0;
  padding-left: 20px;
  position: relative;
}

.box-details li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 600;
}

.network-image {
  border-radius: 12px;
  overflow: hidden;
}

.network-image img {
  width: 100%;
  height: auto;
}

/* Security Section */
.security-section {
  background: white;
}

.security-layers-grid {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 48px;
  background: var(--color-secondary);
  padding: 48px;
  border-radius: 16px;
}

.security-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.security-btn {
  padding: 12px 16px;
  background: white;
  border: 2px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 500;
  text-align: left;
  display: flex;
  gap: 12px;
  align-items: center;
  transition: var(--transition);
  color: var(--color-text);
  font-size: 15px;
}

.security-btn:hover {
  border-color: var(--color-primary);
}

.security-btn.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.security-icon {
  font-size: 20px;
  flex-shrink: 0;
}

.security-description {
  position: relative;
}

.sec-desc {
  display: none;
  animation: fadeIn 0.3s ease;
}

.sec-desc.active {
  display: block;
}

.sec-desc h3 {
  margin-top: 0;
}

.risk-level {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  margin: 12px 0;
}

.risk-critical {
  background: rgba(211, 47, 47, 0.1);
  color: var(--color-danger);
}

.risk-high {
  background: rgba(255, 152, 0, 0.1);
  color: var(--color-warning);
}

.risk-medium {
  background: rgba(255, 193, 7, 0.1);
  color: #f57f17;
}

.risk-low {
  background: rgba(0, 166, 81, 0.1);
  color: var(--color-success);
}

.sec-desc p {
  font-size: 15px;
  line-height: 1.8;
}

.sec-desc p strong {
  color: var(--color-text);
}

.security-image {
  margin-top: 24px;
  border-radius: 8px;
  overflow: hidden;
}

.security-image img {
  width: 100%;
  height: auto;
  cursor: pointer;
}

/* App Preview Section */
.app-preview-section {
  background: var(--color-secondary);
}

.app-carousel {
  background: white;
  padding: 48px;
  border-radius: 16px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.carousel-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 600px;
}

.carousel-main img {
  max-height: 600px;
  height: auto;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  cursor: pointer;
}

.carousel-nav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.carousel-btn {
  padding: 12px;
  background: var(--color-secondary);
  border: 2px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
  transition: var(--transition);
  color: var(--color-text);
}

.carousel-btn:hover {
  border-color: var(--color-primary);
  background: rgba(30, 110, 232, 0.05);
}

.carousel-btn.active {
  background: var(--color-primary);
  color: white;
}

.carousel-description {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.carousel-desc {
  display: none;
  padding: 12px;
  background: var(--color-secondary);
  border-radius: 8px;
  font-size: 14px;
}

.carousel-desc.active {
  display: block;
}

.carousel-desc h3 {
  margin: 0 0 8px 0;
  font-size: 16px;
}

.carousel-desc p {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
}

/* Scenarios Section */
.scenarios-section {
  background: white;
}

.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}

.scenario-btn {
  padding: 12px 16px;
  background: var(--color-secondary);
  border: 2px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition);
  color: var(--color-text);
}

.scenario-btn:hover {
  border-color: var(--color-primary);
  background: rgba(30, 110, 232, 0.05);
}

.scenario-btn.active {
  background: var(--color-primary);
  color: white;
}

.scenarios-content {
  background: var(--color-secondary);
  padding: 48px;
  border-radius: 16px;
}

.scenario-panel {
  display: none;
  animation: fadeIn 0.3s ease;
}

.scenario-panel.active {
  display: block;
}

.scenario-panel h3 {
  margin-bottom: 32px;
  font-size: 24px;
}

.scenario-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.step {
  display: flex;
  gap: 16px;
}

.step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  font-weight: 700;
  flex-shrink: 0;
}

.step-content h4 {
  margin: 0 0 8px 0;
  font-size: 16px;
}

.step-content p {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
}

.scenario-image {
  border-radius: 8px;
  overflow: hidden;
}

.scenario-image img {
  width: 100%;
  height: auto;
  cursor: pointer;
}

/* Locks Section */
.locks-section {
  background: var(--color-secondary);
}

.locks-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.lock-item {
  padding: 24px;
  background: white;
  border: 2px solid var(--color-border);
  border-radius: 12px;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  font-family: inherit;
}

.lock-item:hover {
  border-color: var(--color-primary);
  box-shadow: 0 8px 16px rgba(30, 110, 232, 0.1);
}

.lock-item.locked {
  border-color: var(--color-success);
  background: rgba(0, 166, 81, 0.05);
}

.lock-icon {
  font-size: 32px;
  margin-bottom: 12px;
  display: block;
}

.lock-item h3 {
  margin: 0 0 8px 0;
  font-size: 16px;
}

.lock-item p {
  font-size: 13px;
  margin: 0 0 12px 0;
}

.lock-status {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
}

.lock-status.locked {
  background: rgba(211, 47, 47, 0.1);
  color: var(--color-danger);
}

.lock-status.unlocked {
  background: rgba(0, 166, 81, 0.1);
  color: var(--color-success);
}

.locks-status {
  text-align: center;
  font-weight: 600;
  margin-bottom: 16px;
  font-size: 16px;
}

.locks-message {
  padding: 16px;
  background: rgba(0, 166, 81, 0.1);
  border: 2px solid var(--color-success);
  border-radius: 8px;
  text-align: center;
  color: var(--color-success);
  font-weight: 600;
}

/* FAQ Section */
.faq-section {
  background: white;
}

.faq-categories {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}

.faq-cat-btn {
  padding: 12px 16px;
  background: var(--color-secondary);
  border: 2px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition);
  color: var(--color-text);
  font-family: inherit;
}

.faq-cat-btn:hover {
  border-color: var(--color-primary);
  background: rgba(30, 110, 232, 0.05);
}

.faq-cat-btn.active {
  background: var(--color-primary);
  color: white;
}

.faq-content {
  background: var(--color-secondary);
  padding: 48px;
  border-radius: 16px;
}

.faq-category {
  display: none;
}

.faq-category.active {
  display: block;
}

.faq-item {
  background: white;
  margin-bottom: 16px;
  border-radius: 8px;
  overflow: hidden;
}

.faq-question {
  padding: 20px;
  margin: 0;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
  color: var(--color-text);
}

.faq-item:hover .faq-question {
  background: rgba(30, 110, 232, 0.05);
}

.faq-answer {
  display: none;
  padding: 0 20px 20px 20px;
  border-top: 1px solid var(--color-border);
  animation: slideDown 0.3s ease;
}

.faq-item.open .faq-answer {
  display: block;
}

.faq-answer p {
  font-size: 15px;
  line-height: 1.8;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

/* Footer */
.footer {
  background: var(--color-text);
  color: #ccc;
  padding: 80px 0 40px 0;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 48px;
  margin-bottom: 48px;
}

.footer-section h3,
.footer-section h4 {
  color: white;
}

.footer-brand {
  grid-column: 1 / 2;
}

.footer-brand img {
  width: 40px;
  height: 40px;
  margin-bottom: 12px;
  border-radius: 6px;
}

.footer-section ul {
  list-style: none;
  padding: 0;
}

.footer-section li {
  margin-bottom: 12px;
}

.footer-section a {
  color: #ccc;
  text-decoration: none;
  transition: var(--transition);
}

.footer-section a:hover {
  color: white;
}

.footer-warning {
  grid-column: 1 / -1;
  padding: 24px;
  background: rgba(255, 152, 0, 0.1);
  border-left: 4px solid var(--color-warning);
  border-radius: 8px;
}

.footer-warning h4 {
  margin-top: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 32px;
}

.footer-disclaimer {
  margin-bottom: 32px;
}

.footer-disclaimer h4 {
  color: white;
}

.footer-disclaimer p {
  color: #ccc;
  margin: 0;
  font-size: 14px;
}

.footer-copyright {
  text-align: center;
  font-size: 14px;
  color: #999;
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  border: none;
  cursor: pointer;
  font-size: 20px;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 80;
  box-shadow: 0 4px 12px rgba(30, 110, 232, 0.3);
  transition: var(--transition);
}

.back-to-top.show {
  display: flex;
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(30, 110, 232, 0.4);
}

/* Image Preview Modal */
.image-preview-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.95);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 999;
  padding: 20px;
}

.image-preview-modal.active {
  display: flex;
}

.image-preview-modal img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  cursor: pointer;
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: white;
  font-size: 28px;
  cursor: pointer;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  z-index: 10;
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

/* Mobile Responsive */
@media (max-width: 1024px) {
  :root {
    --container: 100%;
    --spacing: 24px;
  }

  h1 {
    font-size: 36px;
  }

  h2 {
    font-size: 28px;
    margin-bottom: 32px;
  }

  section {
    padding: 60px 0;
  }

  .header-content {
    gap: 16px;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-text {
    padding-right: 0;
  }

  .hero-actions {
    flex-wrap: wrap;
  }

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

  .layers-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .storage-boxes {
    grid-template-columns: 1fr;
  }

  .security-layers-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .security-list {
    flex-direction: row;
    overflow-x: auto;
    gap: 8px;
  }

  .security-btn {
    flex-shrink: 0;
  }

  .app-carousel {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .carousel-main {
    min-height: 400px;
  }

  .carousel-main img {
    max-height: 400px;
  }

  .carousel-nav {
    grid-template-columns: repeat(8, 1fr);
  }

  .carousel-description {
    grid-template-columns: 1fr;
  }

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

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

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

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

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

  .footer-warning {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .container {
    width: 100%;
    padding: 0 16px;
  }

  .header-tabs {
    display: none;
  }

  .mobile-wallet-btn {
    display: flex;
  }

  .header-title {
    display: none;
  }

  .header-logo {
    flex: 1;
  }

  h1 {
    font-size: 28px;
  }

  h2 {
    font-size: 24px;
  }

  section {
    padding: 48px 0;
  }

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

  .storage-boxes {
    grid-template-columns: 1fr;
  }

  .scenarios-grid {
    grid-template-columns: 1fr;
    grid-auto-flow: column;
    overflow-x: auto;
    gap: 8px;
  }

  .scenario-btn {
    flex-shrink: 0;
    min-width: 120px;
  }

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

  .faq-categories {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-warning {
    grid-column: 1 / -1;
  }

  .back-to-top {
    bottom: 80px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 12px;
  }

  h1 {
    font-size: 24px;
  }

  h2 {
    font-size: 20px;
    margin-bottom: 24px;
  }

  h3 {
    font-size: 18px;
  }

  section {
    padding: 32px 0;
  }

  .hero-badge {
    font-size: 12px;
  }

  .hero-actions {
    gap: 12px;
  }

  .btn {
    padding: 12px 24px;
    font-size: 14px;
  }

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

  .layer-item {
    padding: 16px;
  }

  .layers-content {
    padding: 24px;
  }

  .layers-list {
    flex-direction: row;
    overflow-x: auto;
    gap: 8px;
  }

  .layer-btn {
    flex-shrink: 0;
    min-width: 100px;
    padding: 10px 12px;
    font-size: 14px;
  }

  .drawer-handle {
    grid-template-columns: 50px 1fr 30px;
    padding: 16px;
    gap: 16px;
  }

  .drawer-number {
    font-size: 24px;
  }

  .drawer-title {
    font-size: 16px;
  }

  .carousel-nav {
    grid-template-columns: repeat(4, 1fr);
  }

  .carousel-description {
    display: none;
  }

  .scenario-steps {
    gap: 16px;
  }

  .scenario-image {
    margin-top: 16px;
  }

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

  .lock-item {
    padding: 16px;
  }

  .security-list {
    flex-wrap: wrap;
  }

  .security-btn {
    flex: 1 1 calc(50% - 6px);
    min-width: 140px;
    padding: 10px;
    font-size: 14px;
  }
}