/* Reset & CSS Variables */
:root {
  --font-family-body: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-family-mono: 'Fira Code', 'Courier New', Courier, monospace;

  /* Theme Palette (Vibrant Dark Glassmorphism) */
  --bg-dark: #07090e;
  --glass-bg: rgba(21, 26, 38, 0.55);
  --glass-border: rgba(255, 255, 255, 0.05);
  --glass-border-hover: rgba(255, 255, 255, 0.12);
  
  --primary-color: #00d2ff;
  --primary-glow: rgba(0, 210, 255, 0.2);
  --primary-hover: #33e0ff;

  --success-color: #00e676;
  --success-bg: rgba(0, 230, 118, 0.08);
  --success-border: rgba(0, 230, 118, 0.15);

  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --border-radius-lg: 16px;
  --border-radius-md: 12px;
  --border-radius-sm: 8px;

  --transition-fast: 0.15s ease;
  --transition-medium: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  outline: none;
}

body {
  font-family: var(--font-family-body);
  background-color: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow-x: hidden;
  position: relative;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Background animated decorative orbs */
.glass-background {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
  overflow: hidden;
}

.glass-background::before,
.glass-background::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.45;
  pointer-events: none;
}

.glass-background::before {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--primary-color) 0%, rgba(0, 210, 255, 0) 70%);
  top: -10%;
  right: 15%;
  animation: float-slow 15s infinite alternate;
}

.glass-background::after {
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, #8b5cf6 0%, rgba(139, 92, 246, 0) 70%);
  bottom: 10%;
  left: 10%;
  animation: float-slow 18s infinite alternate-reverse;
}

@keyframes float-slow {
  0% { transform: translateY(0) scale(1); }
  100% { transform: translateY(30px) scale(1.1); }
}

/* Container Structure */
.app-container {
  width: 100%;
  max-width: 1100px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Header Component */
.main-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  padding: 16px 24px;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.2);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.5px;
  color: #fff;
}

.logo-icon {
  color: var(--primary-color);
  filter: drop-shadow(0 0 8px var(--primary-color));
}

.animate-spin-slow {
  animation: spin 20s linear infinite;
}

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

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

.network-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--success-color);
  box-shadow: 0 0 8px var(--success-color);
}

.status-dot.pulse {
  animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
  0% { transform: scale(0.95); opacity: 0.5; }
  50% { transform: scale(1.1); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.5; }
}

/* Button UI */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--border-radius-md);
  font-family: var(--font-family-body);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
}

.btn-connect {
  background: #1a2235;
  border: 1px solid var(--glass-border);
  color: #fff;
  border-radius: 50px;
}

.btn-connect:hover {
  background: #25304b;
  border-color: var(--primary-color);
  box-shadow: 0 0 12px rgba(0, 210, 255, 0.15);
}

.btn-primary {
  background: var(--primary-color);
  color: #000;
  box-shadow: 0 4px 15px rgba(0, 210, 255, 0.25);
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0, 210, 255, 0.35);
}

.btn-primary:disabled {
  background: var(--text-dim);
  color: rgba(255, 255, 255, 0.4);
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

.btn-full-width {
  width: 100%;
}

/* Layout Grid */
.main-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 24px;
}

@media (max-width: 768px) {
  .main-grid {
    grid-template-columns: 1fr;
  }
}

/* Cards (Glassmorphism design) */
.card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: 24px;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.25);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.card:hover {
  border-color: var(--glass-border-hover);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  padding-bottom: 14px;
}

.card-title {
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--text-muted);
}

/* Left Column Specifics */
.left-col {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.stats-card h1 {
  font-size: 54px;
  font-weight: 800;
  background: linear-gradient(135deg, #fff 30%, var(--primary-color) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
}

/* Input Fields styling */
.input-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.input-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}

.input-group input {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-md);
  padding: 12px 16px;
  color: #fff;
  font-family: var(--font-family-body);
  font-size: 15px;
  transition: all var(--transition-fast);
}

.input-group input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 8px rgba(0, 210, 255, 0.15);
}

/* Gas Tip Block */
.gas-tip {
  display: flex;
  gap: 12px;
  background: rgba(0, 210, 255, 0.03);
  border: 1px solid rgba(0, 210, 255, 0.1);
  padding: 14px;
  border-radius: var(--border-radius-md);
  font-size: 13px;
  line-height: 1.5;
}

.gas-tip-icon {
  color: var(--primary-color);
  flex-shrink: 0;
}

.gas-tip p {
  color: var(--text-muted);
}

.gas-tip strong {
  color: #fff;
}

.gas-tip a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
}

.gas-tip a:hover {
  text-decoration: underline;
}

/* Right Column Specifics: Feed List */
.feed-card {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.feed-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  color: var(--primary-color);
  background: rgba(0, 210, 255, 0.05);
  padding: 4px 10px;
  border-radius: 50px;
}

.feed-live-icon {
  width: 10px;
  height: 10px;
}

.pulse-live {
  animation: pulse-glow 1.5s infinite;
}

.feed-entries {
  flex: 1;
  max-height: 500px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-right: 4px;
}

/* Custom Scrollbar for Feed */
.feed-entries::-webkit-scrollbar {
  width: 6px;
}
.feed-entries::-webkit-scrollbar-track {
  background: transparent;
}
.feed-entries::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
}
.feed-entries::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* Feed items layout */
.feed-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  height: 250px;
  color: var(--text-muted);
  font-size: 14px;
}

.animate-spin {
  animation: spin 1.5s linear infinite;
}

.feed-item {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.03);
  border-radius: var(--border-radius-md);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: all var(--transition-fast);
}

.feed-item:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.06);
  transform: translateX(2px);
}

.feed-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
}

.sender-address {
  font-family: var(--font-family-mono);
  color: var(--primary-color);
  font-weight: 500;
  text-decoration: none;
}

.sender-address:hover {
  text-decoration: underline;
}

.timestamp {
  color: var(--text-dim);
}

.message-content {
  font-size: 15px;
  color: #fff;
  font-weight: 500;
  word-break: break-word;
}

/* Text status modifiers */
.text-primary { color: var(--primary-color); }
.text-success { color: var(--success-color); }
.text-muted { color: var(--text-muted); }

/* Toast Notifications styling */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--primary-color);
  color: #000;
  padding: 12px 24px;
  border-radius: var(--border-radius-md);
  font-weight: 700;
  font-size: 14px;
  box-shadow: 0 8px 30px rgba(0, 210, 255, 0.35);
  z-index: 1000;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.30s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast.error {
  background: #ff1744;
  color: #fff;
  box-shadow: 0 8px 30px rgba(255, 23, 68, 0.35);
}