:root {
  /* Dynamic Background Colors (Telegram theme compatible) */
  --tg-theme-bg-color: #0f0f15;
  --tg-theme-text-color: #ffffff;
  --tg-theme-hint-color: #c0c0c0;
  --tg-theme-link-color: #4da6ff;
  --tg-theme-button-color: #4da6ff;
  --tg-theme-button-text-color: #ffffff;
  
  /* Glassmorphism Variables */
  --glass-bg: color-mix(in srgb, var(--tg-theme-text-color) 5%, transparent);
  --glass-bg-hover: color-mix(in srgb, var(--tg-theme-text-color) 10%, transparent);
  --glass-border: color-mix(in srgb, var(--tg-theme-text-color) 10%, transparent);
  --glass-border-light: color-mix(in srgb, var(--tg-theme-text-color) 20%, transparent);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.15);
  --glass-blur: blur(12px);
  --glass-blur-heavy: blur(24px);
  
  /* Accents */
  --accent-primary: #4da6ff;
  --accent-secondary: #ff4dff;
  --accent-gradient: linear-gradient(135deg, #4da6ff, #ff4dff);
  --danger: #ff4d4d;
  --success: #00e676;
  
  /* Orbs */
  --orb-1: #4da6ff;
  --orb-2: #ff4dff;
  --orb-3: #00e676;
  
  /* Layout */
  --nav-height: 70px;
  --nav-bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  --app-padding: 20px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--tg-theme-bg-color);
  color: var(--tg-theme-text-color);
  overflow: hidden; /* Prevent body scroll */
  overscroll-behavior: none;
  font-size: 15px;
  line-height: 1.5;
}

/* --- App Container --- */
#app {
  position: relative;
  width: 100vw;
  height: 100vh;
  padding: var(--app-padding);
  padding-bottom: calc(var(--nav-height) + var(--nav-bottom) + 30px);
  overflow-y: auto;
  overflow-x: hidden;
}

/* --- Glass Utilities --- */
.panel-glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: 20px;
}

/* --- Header --- */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  margin-bottom: 24px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.avatar-glow {
  position: relative;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent-gradient);
  padding: 2px;
}

.avatar-glow::after {
  content: '';
  position: absolute;
  inset: -4px;
  background: inherit;
  filter: blur(8px);
  border-radius: inherit;
  z-index: -1;
  opacity: 0.7;
}

.avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--tg-theme-bg-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.header-info h1 {
  font-size: 20px;
  font-weight: 700;
  margin: 0;
  color: var(--tg-theme-text-color);
}

.header-sub {
  font-size: 13px;
  color: var(--tg-theme-hint-color);
  margin: 0;
}

.btn-icon {
  background: transparent;
  border: none;
  color: var(--tg-theme-text-color);
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s ease;
}

.btn-icon:active {
  background: var(--glass-bg-hover);
}

/* --- Typography --- */
.section-title {
  font-size: 18px;
  font-weight: 600;
  margin: 24px 0 16px;
  padding-left: 8px;
}

/* --- Pages --- */
.page {
  display: none;
  animation: fadeIn 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.page.active {
  display: block;
}

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

/* --- Home: Stats Grid --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.stat-card {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.2s ease, background 0.3s ease;
}

.stat-card:active {
  transform: scale(0.96);
  background: var(--glass-bg-hover);
}

.stat-icon {
  font-size: 24px;
  width: 40px;
  height: 40px;
  background: var(--glass-bg);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stat-info {
  display: flex;
  flex-direction: column;
}

.stat-label {
  font-weight: 600;
  font-size: 14px;
}

.stat-desc {
  font-size: 12px;
  color: var(--tg-theme-hint-color);
}

/* --- Home: Features List --- */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.feature-card {
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.3s ease;
}

.feature-card:active {
  transform: scale(0.98);
  background: var(--glass-bg-hover);
}

.feature-icon-wrap {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--glass-bg);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.feature-info {
  flex-grow: 1;
}

.feature-info h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.feature-info p {
  font-size: 12px;
  color: var(--tg-theme-hint-color);
}

.feature-arrow {
  color: var(--tg-theme-hint-color);
  font-size: 20px;
  transition: transform 0.3s ease;
}

.feature-card:hover .feature-arrow {
  transform: translateX(4px);
  color: var(--accent-primary);
}

/* --- Tip Card --- */
.tip-card {
  margin-top: 24px;
  padding: 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: rgba(77, 166, 255, 0.1);
  border-color: rgba(77, 166, 255, 0.2);
}

.tip-icon {
  font-size: 20px;
}

.tip-card p {
  font-size: 13px;
  color: var(--tg-theme-text-color);
  opacity: 0.9;
}

/* --- Download Page --- */
.download-card {
  padding: 24px;
}

.download-desc {
  margin-bottom: 20px;
  color: var(--tg-theme-hint-color);
  font-size: 14px;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 20px;
}

.input-glass {
  position: relative;
  width: 100%;
}

.input-glass input {
  width: 100%;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--glass-border);
  color: var(--tg-theme-text-color);
  padding: 16px 20px;
  border-radius: 16px;
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.input-glass input:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px rgba(77, 166, 255, 0.2);
}

.btn-glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  color: var(--tg-theme-text-color);
  padding: 16px 24px;
  border-radius: 16px;
  font-size: 16px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-primary {
  background: var(--accent-gradient);
  border: none;
  box-shadow: 0 8px 24px rgba(77, 166, 255, 0.4);
}

.btn-primary:active {
  transform: scale(0.96);
  box-shadow: 0 4px 12px rgba(77, 166, 255, 0.4);
}

.btn-glass:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.btn-loader {
  animation: spin 1s linear infinite;
  display: inline-block;
}

@keyframes spin {
  100% { transform: rotate(360deg); }
}

.error-text {
  color: var(--danger);
  font-size: 13px;
  margin-top: 8px;
  padding-left: 4px;
  font-weight: 500;
}

.platform-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badge {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  color: var(--tg-theme-hint-color);
}

.download-result {
  margin-top: 24px;
  display: none;
}
.download-result.active {
  display: block;
}

/* --- Tools Page --- */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.tool-card {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.3s ease;
}

.tool-card:active {
  transform: scale(0.92);
  background: var(--glass-bg-hover);
}

.tool-icon {
  font-size: 32px;
}

.tool-name {
  font-size: 13px;
  font-weight: 500;
}

.tool-panel {
  margin-top: 24px;
  display: none;
}

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

/* --- Alert Page --- */
.alert-info {
  padding: 20px;
  margin-bottom: 24px;
}

.alert-info p {
  margin-bottom: 16px;
  color: var(--tg-theme-hint-color);
}

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

.command-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--glass-border);
}

.command-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.command-item code {
  background: rgba(0, 0, 0, 0.3);
  padding: 4px 8px;
  border-radius: 6px;
  font-family: monospace;
  color: var(--accent-primary);
}

.command-item span {
  font-size: 13px;
  color: var(--tg-theme-hint-color);
}

.coin-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.coin-card {
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.coin-emoji {
  font-size: 32px;
}

.coin-name {
  font-weight: 600;
  font-size: 18px;
}

/* --- Settings Page --- */
.settings-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.setting-item {
  padding: 20px;
}

.setting-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.setting-label {
  font-weight: 500;
}

.setting-value {
  color: var(--tg-theme-hint-color);
}

#btn-close-app {
  cursor: pointer;
  margin-top: 24px;
  color: var(--danger);
  background: rgba(255, 77, 77, 0.05);
  border-color: rgba(255, 77, 77, 0.1);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), background 0.3s ease;
}

#btn-close-app:active {
  transform: scale(0.98);
  background: rgba(255, 77, 77, 0.15);
  border-color: rgba(255, 77, 77, 0.3);
}

/* --- Liquid Glass Navbar Tube --- */
.navbar-tube {
  display: flex;
  align-items: center;
  justify-content: space-between;

  position: fixed;
  bottom: var(--nav-bottom);
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 40px);
  max-width: 400px;
  height: var(--nav-height);
  background: color-mix(in srgb, var(--tg-theme-text-color) 10%, transparent);
  backdrop-filter: blur(28px) saturate(200%) brightness(1.05);
  -webkit-backdrop-filter: blur(28px) saturate(200%) brightness(1.05);
  border: 1px solid color-mix(in srgb, var(--tg-theme-text-color) 22%, transparent);
  border-radius: 35px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2), inset 0 1px 1px color-mix(in srgb, var(--tg-theme-text-color) 10%, transparent);
  z-index: 1000;
  padding: 0 5px;
}

.nav-indicator {
  position: absolute;
  top: 4px;
  bottom: 4px;
  width: calc(100% / var(--nav-items-count, 4) - 2.5px);
  background: linear-gradient(to bottom, 
    color-mix(in srgb, var(--tg-theme-text-color) 4%, transparent) 0%,
    transparent 40%,
    rgba(0, 0, 0, 0.1) 100%);
  backdrop-filter: blur(24px) saturate(120%) brightness(1.05);
  -webkit-backdrop-filter: blur(24px) saturate(120%) brightness(1.05);
  border: 1px solid color-mix(in srgb, var(--tg-theme-text-color) 8%, transparent);
  border-radius: 30px;
  box-shadow: 
    inset 0 4px 6px -2px color-mix(in srgb, var(--tg-theme-text-color) 25%, transparent), 
    inset 0 -8px 12px -2px rgba(0, 0, 0, 0.4),
    inset 24px 0 20px -12px rgba(0, 0, 0, 0.35),
    inset -24px 0 20px -12px rgba(0, 0, 0, 0.35),
    0 8px 24px rgba(0, 0, 0, 0.25);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
  z-index: 1;
}

.nav-indicator::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 30px;
  background: linear-gradient(to right, rgba(0,0,0,0.2) 0%, transparent 25%, transparent 75%, rgba(0,0,0,0.2) 100%);
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.nav-indicator.is-dragging {
  box-shadow: 
    inset 0 4px 6px -2px color-mix(in srgb, var(--tg-theme-text-color) 35%, transparent), 
    inset 0 -8px 12px -2px rgba(0, 0, 0, 0.5),
    inset 28px 0 24px -10px rgba(0, 0, 0, 0.45),
    inset -28px 0 24px -10px rgba(0, 0, 0, 0.45),
    0 12px 30px rgba(0, 0, 0, 0.35);
}

.nav-indicator.is-dragging::after {
  background: linear-gradient(to right, rgba(0,0,0,0.3) 0%, transparent 20%, transparent 80%, rgba(0,0,0,0.3) 100%);
}

.nav-indicator::before {
  content: '';
  position: absolute;
  top: 1px;
  left: 50%;
  transform: translateX(-50%);
  width: 30%;
  height: 2px;
  background: linear-gradient(to bottom, color-mix(in srgb, var(--tg-theme-text-color) 40%, transparent), transparent);
  border-radius: 2px;
}

.nav-items {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}



.nav-items {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  padding: 0 10px;
  position: relative;
  /* Prevent filter from affecting inner contents */
  z-index: 2;
}

.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding-top: 23px;
  position: relative;
  height: 100%;
  background: transparent;
  border: none;
  color: var(--tg-theme-hint-color);
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-item svg {
  transition: all 0.3s ease;
}

.nav-item span {
  font-size: 10px;
  font-weight: 500;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.3s ease;
  position: absolute;
  bottom: 16px;
  line-height: 1;
}

/* Hover/Active States */
.nav-item:hover, .nav-item.active, .nav-item.hovered {
  color: var(--accent-primary);
}

.nav-item.active svg, .nav-item.hovered svg {
  transform: translateY(-9px) scale(1.25);
  filter: drop-shadow(0 4px 8px rgba(77, 166, 255, 0.6));
}

.nav-item.active span, .nav-item.hovered span {
  opacity: 1;
  transform: translateY(0);
}

/* macOS-Style Zoom Dock */


/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--glass-border);
  border-radius: 10px;
}

/* Reduce motion preference */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* --- Lucide Icons --- */
.lucide {
  width: 1.2em;
  height: 1.2em;
  stroke-width: 2;
}
.stat-icon .lucide {
  width: 24px;
  height: 24px;
}
.feature-icon .lucide {
  width: 24px;
  height: 24px;
}
.tool-icon .lucide {
  width: 32px;
  height: 32px;
}
.coin-emoji .lucide {
  width: 32px;
  height: 32px;
}
.tip-icon .lucide {
  width: 20px;
  height: 20px;
  color: var(--accent-primary);
}