/* ==========================================================================
   LSM Stability Roadmap - Syd Mead Retrofuturistic Theme
   ========================================================================== */

:root {
  /* Core Palette - Syd Mead inspired */
  --chrome: #e8e8e8;
  --chrome-dark: #b0b0b0;
  --chrome-highlight: #ffffff;

  --teal-dark: #0a1a1f;
  --teal-mid: #0d3b4a;
  --teal-light: #1a6b7a;
  --teal-glow: #4fd1c5;

  --orange-dark: #8b3a00;
  --orange-mid: #d4620a;
  --orange-light: #ff8c42;
  --orange-glow: #ffb347;

  --bg-dark: #050a0d;
  --bg-panel: rgba(13, 59, 74, 0.6);
  --bg-card: rgba(10, 26, 31, 0.9);

  --text-primary: #e8e8e8;
  --text-secondary: #a0c4c8;
  --text-muted: #5a8a90;

  /* Typography */
  --font-display: 'Orbitron', sans-serif;
  --font-body: 'Rajdhani', sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  font-weight: 400;
  background: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse at 50% 0%, rgba(79, 209, 197, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 100% 100%, rgba(255, 140, 66, 0.05) 0%, transparent 40%),
    linear-gradient(180deg, var(--bg-dark) 0%, #0a1520 100%);
}

/* Scanline overlay for retro CRT effect */
.scanlines {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1000;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.1) 0px,
    rgba(0, 0, 0, 0.1) 1px,
    transparent 1px,
    transparent 3px
  );
  opacity: 0.3;
}

/* ==========================================================================
   Header
   ========================================================================== */

.header {
  position: relative;
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
  border-bottom: 1px solid var(--teal-mid);
  background: linear-gradient(180deg, rgba(13, 59, 74, 0.4) 0%, transparent 100%);
}

.header-glow {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--teal-glow), transparent);
  box-shadow: 0 0 20px var(--teal-glow), 0 0 40px var(--teal-glow);
}

.title {
  margin: 0 0 var(--space-sm);
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.2em;
}

.title-prefix {
  display: block;
  font-size: 0.875rem;
  color: var(--orange-light);
  letter-spacing: 0.5em;
  margin-bottom: var(--space-xs);
}

.title-main {
  display: block;
  font-size: clamp(1.5rem, 5vw, 2.5rem);
  background: linear-gradient(180deg, var(--chrome-highlight) 0%, var(--chrome) 50%, var(--chrome-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 30px rgba(255, 255, 255, 0.2);
}

.subtitle {
  margin: 0;
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 300;
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

/* ==========================================================================
   Phase Navigation
   ========================================================================== */

.roadmap-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-lg);
}

.phase-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
  padding: var(--space-md);
}

.phase-btn {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--teal-mid);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s ease;
  min-width: 100px;
}

.phase-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--teal-light), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.phase-btn:hover {
  background: var(--bg-panel);
  border-color: var(--teal-light);
  transform: translateY(-2px);
}

.phase-btn:hover::before {
  opacity: 1;
}

.phase-btn.active {
  background: linear-gradient(180deg, var(--teal-mid) 0%, var(--bg-card) 100%);
  border-color: var(--teal-glow);
  box-shadow: 0 0 20px rgba(79, 209, 197, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.phase-btn.active::before {
  opacity: 1;
  background: var(--teal-glow);
  box-shadow: 0 0 10px var(--teal-glow);
}

.phase-number {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--orange-light);
  line-height: 1;
}

.phase-btn.active .phase-number {
  color: var(--orange-glow);
  text-shadow: 0 0 10px var(--orange-glow);
}

.phase-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.connector {
  width: 30px;
  height: 2px;
  background: linear-gradient(90deg, var(--teal-mid), var(--teal-light), var(--teal-mid));
  position: relative;
}

.connector::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 6px;
  height: 6px;
  background: var(--teal-light);
  border-radius: 50%;
}

/* ==========================================================================
   Phase Panels
   ========================================================================== */

.phase-panels {
  position: relative;
  min-height: 500px;
}

.phase-panel {
  display: none;
  background: var(--bg-card);
  border: 1px solid var(--teal-mid);
  border-radius: 8px;
  overflow: hidden;
  animation: fadeIn 0.4s ease;
}

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

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

.panel-header {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: linear-gradient(90deg, var(--teal-mid) 0%, transparent 100%);
  border-bottom: 1px solid var(--teal-mid);
}

.phase-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.indicator-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--orange-light);
  line-height: 1;
  text-shadow: 0 0 20px rgba(255, 140, 66, 0.5);
}

.indicator-bar {
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--orange-light), var(--orange-dark));
  border-radius: 2px;
}

.panel-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--chrome);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.panel-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto 1fr;
  gap: var(--space-lg);
  padding: var(--space-lg);
}

.description {
  grid-column: 1 / -1;
}

.description p {
  margin: 0;
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.tasks {
  padding-right: var(--space-lg);
}

.tasks-title {
  margin: 0 0 var(--space-md);
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--teal-glow);
  text-transform: uppercase;
  letter-spacing: 0.2em;
}

.task-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.task-list li {
  margin-bottom: var(--space-sm);
}

.task-list a {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  color: var(--text-primary);
  text-decoration: none;
  background: rgba(13, 59, 74, 0.3);
  border: 1px solid transparent;
  border-radius: 4px;
  transition: all 0.2s ease;
  font-size: 0.9375rem;
}

.task-list a:hover {
  background: var(--bg-panel);
  border-color: var(--teal-light);
  color: var(--chrome-highlight);
}

.task-icon {
  color: var(--orange-light);
  font-size: 0.75rem;
}

.task-list.examples a {
  font-size: 0.875rem;
}

.task-list.examples .task-icon {
  color: var(--teal-glow);
}

/* Concept Art Images */
.concept-art {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.concept-art img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  border: 2px solid var(--teal-mid);
  transition: all 0.3s ease;
  cursor: pointer;
  box-shadow:
    0 4px 20px rgba(0, 0, 0, 0.4),
    0 0 30px rgba(79, 209, 197, 0.1);
}

.concept-art img:hover {
  border-color: var(--teal-glow);
  box-shadow:
    0 8px 40px rgba(0, 0, 0, 0.5),
    0 0 40px rgba(79, 209, 197, 0.2);
  transform: scale(1.02);
}

/* Lightbox for full-size image viewing */
.concept-art img.expanded {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  max-width: 90vw;
  max-height: 90vh;
  width: auto;
  height: auto;
  z-index: 2000;
  border-color: var(--teal-glow);
  box-shadow:
    0 0 0 9999px rgba(5, 10, 13, 0.95),
    0 0 60px rgba(79, 209, 197, 0.3);
  cursor: zoom-out;
}

/* Wiki Link */
.wiki-link {
  display: block;
  padding: var(--space-md) var(--space-lg);
  background: linear-gradient(90deg, transparent, rgba(79, 209, 197, 0.1), transparent);
  border-top: 1px solid var(--teal-mid);
  color: var(--teal-glow);
  text-decoration: none;
  text-align: center;
  font-family: var(--font-display);
  font-size: 0.875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: all 0.3s ease;
}

.wiki-link:hover {
  background: linear-gradient(90deg, transparent, rgba(79, 209, 197, 0.2), transparent);
  color: var(--chrome-highlight);
  text-shadow: 0 0 10px var(--teal-glow);
}

/* ==========================================================================
   Progress Bar
   ========================================================================== */

.progress-bar {
  position: relative;
  height: 4px;
  background: var(--teal-dark);
  border-radius: 2px;
  margin: var(--space-xl) 0 var(--space-lg);
  overflow: visible;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--teal-glow), var(--orange-light));
  border-radius: 2px;
  transition: width 0.4s ease;
  box-shadow: 0 0 10px var(--teal-glow);
}

.progress-markers {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  transform: translateY(-50%);
  padding: 0 calc(100% / 12 - 6px);
}

.marker {
  width: 12px;
  height: 12px;
  background: var(--bg-dark);
  border: 2px solid var(--teal-mid);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
}

.marker:hover {
  border-color: var(--teal-light);
  transform: scale(1.2);
}

.marker.active {
  background: var(--teal-glow);
  border-color: var(--teal-glow);
  box-shadow: 0 0 10px var(--teal-glow);
}

.marker.completed {
  background: var(--orange-light);
  border-color: var(--orange-light);
}

/* ==========================================================================
   Navigation Controls
   ========================================================================== */

.nav-controls {
  display: flex;
  justify-content: space-between;
  gap: var(--space-lg);
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--teal-mid);
  border-radius: 4px;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all 0.3s ease;
}

.nav-btn:hover:not(:disabled) {
  background: var(--bg-panel);
  border-color: var(--teal-glow);
  color: var(--chrome-highlight);
}

.nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.nav-arrow {
  font-size: 1.25rem;
  color: var(--orange-light);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
  border-top: 1px solid var(--teal-mid);
  margin-top: var(--space-xl);
}

.footer p {
  margin: 0 0 var(--space-sm);
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.3em;
}

.footer a {
  color: var(--teal-glow);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.3s ease;
}

.footer a:hover {
  color: var(--chrome-highlight);
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 900px) {
  .panel-content {
    grid-template-columns: 1fr;
  }

  .tasks {
    padding-right: 0;
  }

  .concept-art {
    order: -1;
  }
}

@media (max-width: 768px) {
  .phase-nav {
    gap: var(--space-sm);
  }

  .phase-btn {
    padding: var(--space-sm) var(--space-md);
    min-width: auto;
  }

  .phase-number {
    font-size: 1.25rem;
  }

  .phase-label {
    font-size: 0.625rem;
  }

  .connector {
    width: 15px;
  }

  .panel-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }

  .indicator-number {
    font-size: 2rem;
  }

  .panel-title {
    font-size: 1.25rem;
  }
}

@media (max-width: 480px) {
  :root {
    font-size: 14px;
  }

  .phase-nav {
    flex-wrap: wrap;
    justify-content: center;
  }

  .connector {
    display: none;
  }

  .phase-btn {
    flex: 0 0 calc(33.333% - var(--space-sm));
  }
}