/* Fonts */
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;700&display=swap');

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

/* CSS Variables */
:root {
  --red-darkest: #1a0000;
  --red-dark: #4a0000;
  --red-mid: #8B0000;
  --red-bright: #cc0000;
  --red-hot: #ff0000;
  --red-glow: #ff3333;
  --black: #000000;
  --black-soft: #0a0000;

  --font-mono: 'IBM Plex Mono', 'Fira Code', 'Consolas', monospace;

  --glow-sm: 0 0 5px var(--red-bright), 0 0 10px var(--red-mid);
  --glow-md: 0 0 10px var(--red-bright), 0 0 20px var(--red-mid), 0 0 30px var(--red-dark);
  --glow-lg: 0 0 15px var(--red-hot), 0 0 30px var(--red-bright), 0 0 45px var(--red-mid);
  --glow-intense: 0 0 20px var(--red-hot), 0 0 40px var(--red-hot), 0 0 60px var(--red-bright), 0 0 80px var(--red-mid);
}

/* Base */
html, body {
  height: 100%;
  overflow-x: hidden;
}

body {
  background: var(--black);
  color: var(--red-bright);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
  position: relative;
}

/* CRT Scanlines Overlay */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.3) 2px,
    rgba(0, 0, 0, 0.3) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

/* Screen Vignette */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    ellipse at center,
    transparent 0%,
    transparent 60%,
    rgba(0, 0, 0, 0.4) 100%
  );
  pointer-events: none;
  z-index: 9998;
}

/* Main Container */
.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
  position: relative;
  z-index: 1;
}

/* ASCII Box Frames */
.box {
  border: 1px solid var(--red-mid);
  padding: 20px;
  margin: 20px 0;
  position: relative;
  background: var(--black-soft);
  box-shadow: inset 0 0 30px rgba(139, 0, 0, 0.1);
}

.box::before {
  content: '╔' attr(data-title) '╗';
  position: absolute;
  top: -10px;
  left: 10px;
  background: var(--black);
  padding: 0 5px;
  color: var(--red-bright);
  font-size: 12px;
  text-shadow: var(--glow-sm);
}

.box-double {
  border: 2px solid var(--red-mid);
  box-shadow:
    0 0 10px rgba(139, 0, 0, 0.3),
    inset 0 0 30px rgba(139, 0, 0, 0.1);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--red-hot);
  text-shadow: var(--glow-md);
  font-weight: 700;
  margin-bottom: 1em;
}

h1 {
  font-size: 24px;
  text-align: center;
}

/* Logo Container */
.logo-container {
  text-align: center;
  margin: 40px 0;
}

.logo {
  max-width: 400px;
  width: 100%;
  filter:
    drop-shadow(0 0 10px var(--red-bright))
    drop-shadow(0 0 20px var(--red-mid))
    drop-shadow(0 0 40px var(--red-dark));
  animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% {
    filter:
      drop-shadow(0 0 10px var(--red-bright))
      drop-shadow(0 0 20px var(--red-mid))
      drop-shadow(0 0 40px var(--red-dark));
  }
  50% {
    filter:
      drop-shadow(0 0 15px var(--red-hot))
      drop-shadow(0 0 30px var(--red-bright))
      drop-shadow(0 0 60px var(--red-mid));
  }
}

/* Tagline */
.tagline {
  text-align: center;
  font-size: 18px;
  color: var(--red-hot);
  text-shadow: var(--glow-lg);
  margin: 20px 0;
  letter-spacing: 3px;
  text-transform: uppercase;
}

.subtitle {
  text-align: center;
  font-size: 12px;
  color: var(--red-mid);
  margin-bottom: 30px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 15px 30px;
  background: var(--black);
  border: 2px solid var(--red-bright);
  color: var(--red-hot);
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  text-transform: uppercase;
  cursor: pointer;
  text-decoration: none;
  text-shadow: var(--glow-sm);
  box-shadow:
    0 0 10px rgba(255, 0, 0, 0.3),
    inset 0 0 20px rgba(139, 0, 0, 0.2);
  transition: all 0.2s ease;
  letter-spacing: 2px;
}

.btn:hover {
  background: var(--red-darkest);
  box-shadow: var(--glow-lg);
  text-shadow: var(--glow-md);
  transform: scale(1.02);
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--red-dark);
  border-color: var(--red-hot);
}

.btn-primary:hover {
  background: var(--red-mid);
}

.btn-block {
  display: block;
  width: 100%;
  text-align: center;
}

/* Timer Display */
.timer-container {
  text-align: center;
  margin: 30px 0;
}

.timer {
  font-size: 72px;
  font-weight: 700;
  color: var(--red-hot);
  text-shadow: var(--glow-lg);
  font-variant-numeric: tabular-nums;
  animation: timer-pulse 1s ease-in-out infinite;
}

.timer.critical {
  animation: timer-critical 0.5s ease-in-out infinite;
}

.timer.dead {
  color: var(--red-dark);
  text-shadow: none;
  animation: none;
}

@keyframes timer-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

@keyframes timer-critical {
  0%, 100% {
    opacity: 1;
    color: var(--red-hot);
    text-shadow: var(--glow-intense);
  }
  50% {
    opacity: 0.6;
    color: var(--red-bright);
    text-shadow: var(--glow-md);
  }
}

.timer-label {
  font-size: 14px;
  color: var(--red-mid);
  text-transform: uppercase;
  letter-spacing: 4px;
  margin-top: 10px;
}

/* Progress/Decay Bar */
.decay-bar-container {
  width: 100%;
  height: 20px;
  background: var(--red-darkest);
  border: 1px solid var(--red-dark);
  margin: 20px 0;
  position: relative;
  overflow: hidden;
}

.decay-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--red-dark), var(--red-bright), var(--red-hot));
  transition: width 0.1s linear;
  box-shadow: var(--glow-sm);
}

.decay-bar.critical {
  animation: bar-critical 0.3s ease-in-out infinite;
}

@keyframes bar-critical {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Token Card */
.token-card {
  border: 2px solid var(--red-mid);
  padding: 20px;
  margin: 20px 0;
  background: var(--black);
  position: relative;
}

.token-id {
  font-size: 12px;
  color: var(--red-dark);
  margin-bottom: 10px;
  word-break: break-all;
}

.token-status {
  font-size: 14px;
  color: var(--red-bright);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.token-status.alive {
  color: var(--red-hot);
  text-shadow: var(--glow-sm);
}

.token-status.dead {
  color: var(--red-dark);
}

/* QR Code */
.qr-container {
  text-align: center;
  margin: 20px 0;
  padding: 20px;
  background: var(--black);
  border: 2px solid var(--red-mid);
}

.qr-code {
  display: inline-block;
  padding: 10px;
  background: var(--black);
  box-shadow: var(--glow-md);
}

.qr-code canvas,
.qr-code svg {
  display: block;
}

/* Link Display */
.link-container {
  margin: 20px 0;
}

.link-display {
  display: flex;
  align-items: center;
  background: var(--red-darkest);
  border: 1px solid var(--red-dark);
  padding: 10px 15px;
}

.link-url {
  flex: 1;
  font-size: 14px;
  color: var(--red-bright);
  word-break: break-all;
  margin-right: 10px;
}

.btn-copy {
  padding: 8px 15px;
  font-size: 12px;
}

/* Screens/Views */
.screen {
  display: none;
  animation: fadeIn 0.3s ease;
}

.screen.active {
  display: block;
}

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

/* Death Animation */
.death-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--black);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 100;
  animation: death-fade 2s ease;
}

@keyframes death-fade {
  0% { opacity: 0; }
  100% { opacity: 1; }
}

.death-text {
  font-size: 32px;
  color: var(--red-dark);
  text-transform: uppercase;
  letter-spacing: 5px;
  margin-bottom: 30px;
  animation: death-pulse 2s ease-in-out infinite;
}

@keyframes death-pulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.6; }
}

/* Blood Drip Effect */
.blood-drip {
  position: relative;
  overflow: hidden;
}

.blood-drip::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 30%;
  background: linear-gradient(
    to bottom,
    transparent,
    var(--red-dark)
  );
  animation: drip 3s ease-in-out infinite;
  opacity: 0.5;
}

@keyframes drip {
  0%, 100% { transform: translateY(-10%); }
  50% { transform: translateY(10%); }
}

/* ASCII Decorations */
.ascii-border {
  white-space: pre;
  font-size: 12px;
  color: var(--red-dark);
  text-align: center;
  margin: 10px 0;
}

/* Send Modes */
.send-modes {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.send-modes .btn {
  flex: 1;
}

.send-modes .btn.active {
  background: var(--red-dark);
  box-shadow: var(--glow-md);
}

/* Form Elements */
input[type="text"],
input[type="number"],
textarea {
  width: 100%;
  padding: 12px 15px;
  background: var(--black);
  border: 1px solid var(--red-dark);
  color: var(--red-bright);
  font-family: var(--font-mono);
  font-size: 14px;
  margin-bottom: 15px;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--red-bright);
  box-shadow: 0 0 10px rgba(255, 0, 0, 0.2);
}

/* Messages */
.message {
  padding: 15px;
  margin: 15px 0;
  border: 1px solid var(--red-mid);
  text-align: center;
}

.message.error {
  border-color: var(--red-hot);
  color: var(--red-hot);
}

.message.success {
  border-color: var(--red-bright);
  color: var(--red-bright);
}

/* Loading */
.loading {
  text-align: center;
  padding: 40px;
}

.loading-spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 3px solid var(--red-dark);
  border-top-color: var(--red-hot);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.loading-text {
  margin-top: 15px;
  color: var(--red-mid);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 2px;
}

/* Footer */
.footer {
  text-align: center;
  margin-top: 60px;
  padding: 20px;
  border-top: 1px solid var(--red-dark);
  font-size: 11px;
  color: var(--red-dark);
}

.footer a {
  color: var(--red-mid);
  text-decoration: none;
}

.footer a:hover {
  color: var(--red-bright);
  text-shadow: var(--glow-sm);
}

/* Responsive */
@media (max-width: 600px) {
  .container {
    padding: 15px;
  }

  .timer {
    font-size: 48px;
  }

  .tagline {
    font-size: 14px;
    letter-spacing: 2px;
  }

  .btn {
    padding: 12px 20px;
    font-size: 14px;
  }

  .send-modes {
    flex-direction: column;
  }

  .death-text {
    font-size: 24px;
    letter-spacing: 3px;
  }
}

/* Hidden utility */
.hidden {
  display: none !important;
}

/* ASCII Art for token display */
.ascii-token {
  font-size: 10px;
  line-height: 1.2;
  color: var(--red-mid);
  text-align: center;
  white-space: pre;
  margin: 20px 0;
}

/* Flicker effect for critical moments */
.flicker {
  animation: flicker 0.1s ease-in-out infinite;
}

@keyframes flicker {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

/* Screen shake for death */
.shake {
  animation: shake 0.5s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
  20%, 40%, 60%, 80% { transform: translateX(5px); }
}

/* ═══════════════════════════════════════════════════════════════════════════
   LANDING PAGE STYLES
   ═══════════════════════════════════════════════════════════════════════════ */

/* Sections */
.section {
  margin: 40px 0;
}

.hero {
  margin-bottom: 60px;
}

/* Content blocks */
.content {
  padding: 20px;
}

.content p {
  margin-bottom: 15px;
  line-height: 1.7;
}

.content ul {
  list-style: none;
  margin: 15px 0;
}

.content li {
  padding: 8px 0;
  padding-left: 20px;
  position: relative;
}

.content li::before {
  content: '>';
  position: absolute;
  left: 0;
  color: var(--red-mid);
}

.highlight {
  color: var(--red-hot);
  text-shadow: var(--glow-sm);
}

.dim {
  color: var(--red-dark);
  font-size: 12px;
}

/* ASCII Diagram */
.ascii-diagram {
  font-size: 11px;
  line-height: 1.4;
  color: var(--red-mid);
  overflow-x: auto;
  margin: 20px 0;
  padding: 10px;
  background: var(--black-soft);
  border: 1px solid var(--red-dark);
}

/* Mermaid Flowchart Container */
.mermaid-container {
  margin: 30px 0;
  padding: 20px;
  background: var(--black);
  border: 1px solid var(--red-dark);
  overflow-x: auto;
}

.mermaid-container .mermaid {
  display: flex;
  justify-content: center;
}

.mermaid-container .mermaid svg {
  max-width: 100%;
  filter: drop-shadow(0 0 10px var(--red-dark));
}

/* Mermaid node styling overrides */
.mermaid .node rect,
.mermaid .node polygon {
  fill: var(--red-darkest) !important;
  stroke: var(--red-mid) !important;
  stroke-width: 2px !important;
}

.mermaid .node .label {
  color: var(--red-bright) !important;
}

.mermaid .edgePath path {
  stroke: var(--red-bright) !important;
  stroke-width: 2px !important;
}

.mermaid .edgePath marker path {
  fill: var(--red-bright) !important;
}

.mermaid .cluster rect {
  fill: var(--black-soft) !important;
  stroke: var(--red-dark) !important;
}

.mermaid .cluster-label .nodeLabel {
  color: var(--red-mid) !important;
}

/* Transfer Flow Infograph - Two Column Layout */
.transfer-infograph {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 30px;
  align-items: start;
  margin: 20px 0;
}

.infograph-flow {
  position: sticky;
  top: 20px;
}

.infograph-flow .mermaid-container {
  margin: 0;
  padding: 15px;
  min-width: 120px;
}

.infograph-definitions {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.step-def {
  display: flex;
  gap: 15px;
  padding: 15px;
  border: 1px solid var(--red-dark);
  background: var(--black-soft);
  transition: all 0.2s ease;
}

.step-def:hover {
  border-color: var(--red-mid);
  box-shadow: 0 0 15px rgba(139, 0, 0, 0.3);
}

.step-num {
  font-size: 24px;
  font-weight: 700;
  color: var(--red-hot);
  text-shadow: var(--glow-md);
  min-width: 35px;
  text-align: center;
  line-height: 1;
}

.step-content {
  flex: 1;
}

.step-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--red-hot);
  text-shadow: var(--glow-sm);
  letter-spacing: 2px;
  margin-bottom: 4px;
}

.step-formula {
  font-size: 11px;
  color: var(--red-mid);
  font-family: var(--font-mono);
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.step-desc {
  font-size: 12px;
  color: var(--red-bright);
  line-height: 1.6;
}

/* Detection Summary */
.detection-summary {
  margin-top: 30px;
  padding: 15px 20px;
  border: 1px solid var(--red-dark);
  background: var(--black-soft);
  text-align: center;
}

.detection-title {
  font-size: 12px;
  color: var(--red-mid);
  letter-spacing: 3px;
  margin-bottom: 10px;
}

.detection-paths {
  font-size: 12px;
  color: var(--red-bright);
  line-height: 1.8;
}

/* Responsive: stack on mobile */
@media (max-width: 700px) {
  .transfer-infograph {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .infograph-flow {
    position: static;
    display: flex;
    justify-content: center;
  }

  .step-def {
    flex-direction: column;
    gap: 10px;
  }

  .step-num {
    font-size: 20px;
  }
}

/* Decay Demo */
.decay-demo {
  margin: 30px 0;
}

.decay-visual {
  max-width: 400px;
  margin: 0 auto;
}

.decay-label {
  text-align: center;
  font-size: 11px;
  color: var(--red-dark);
  margin-top: 10px;
  letter-spacing: 2px;
}

/* Three Pillars */
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  padding: 20px;
}

.pillar {
  border: 1px solid var(--red-dark);
  padding: 20px;
  background: var(--black-soft);
}

.pillar-title {
  font-size: 16px;
  color: var(--red-hot);
  text-shadow: var(--glow-md);
  margin-bottom: 5px;
  letter-spacing: 2px;
}

.pillar-subtitle {
  font-size: 11px;
  color: var(--red-mid);
  margin-bottom: 15px;
  letter-spacing: 1px;
}

.pillar ul {
  list-style: none;
  font-size: 12px;
  margin-bottom: 15px;
}

.pillar li {
  padding: 5px 0;
  color: var(--red-bright);
}

.pillar li::before {
  content: '·';
  margin-right: 8px;
  color: var(--red-dark);
}

.pillar-link {
  display: block;
  font-size: 10px;
  color: var(--red-dark);
  text-decoration: none;
  word-break: break-all;
}

.pillar-link:hover {
  color: var(--red-bright);
  text-shadow: var(--glow-sm);
}

/* Feature Grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
}

.feature {
  border: 1px solid var(--red-dark);
  padding: 15px;
  background: var(--black-soft);
}

.feature-name {
  display: block;
  font-size: 14px;
  color: var(--red-hot);
  text-shadow: var(--glow-sm);
  margin-bottom: 5px;
  letter-spacing: 2px;
}

.feature-desc {
  display: block;
  font-size: 11px;
  color: var(--red-mid);
}

/* Code Block */
.code-block {
  background: var(--black-soft);
  border: 1px solid var(--red-dark);
  padding: 20px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--red-bright);
  overflow-x: auto;
}

/* FAQ */
.faq {
  padding: 20px;
}

.faq-item {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--red-darkest);
}

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

.faq-q {
  font-size: 14px;
  color: var(--red-hot);
  margin-bottom: 8px;
}

.faq-q::before {
  content: 'Q: ';
  color: var(--red-mid);
}

.faq-a {
  font-size: 13px;
  color: var(--red-bright);
  padding-left: 20px;
}

.faq-a::before {
  content: 'A: ';
  color: var(--red-dark);
}

/* Footer Links */
.footer-links {
  margin: 20px 0;
}

.footer-links a {
  color: var(--red-mid);
  text-decoration: none;
  margin: 0 10px;
}

.footer-links a:hover {
  color: var(--red-hot);
  text-shadow: var(--glow-sm);
}

.footer-links .separator {
  color: var(--red-dark);
}

.footer-copy {
  font-size: 10px;
  color: var(--red-dark);
  margin-top: 10px;
}

/* Responsive adjustments for landing page */
@media (max-width: 600px) {
  .pillars {
    grid-template-columns: 1fr;
  }

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

  .ascii-diagram {
    font-size: 9px;
  }

  .code-block {
    font-size: 10px;
    padding: 15px;
  }

  .ascii-border {
    font-size: 8px;
    overflow-x: auto;
  }
}