/* styles.css
   Robust theming and layout system for timeline.
*/

:root {
  /* --- DEFAULT THEME (Dark Blue/Glass) --- */
  --bg-grad: linear-gradient(180deg, #0f1724 0%, #071026 100%);
  --text-main: #e6eef8;
  --text-muted: #9fb0cc;
  --card-bg: rgba(11, 19, 32, 0.85);
  --card-border: rgba(255, 255, 255, 0.08);
  --accent: #4f9cff;
  --accent-glow: rgba(79, 156, 255, 0.2);
  --font-body: 'Inter', ui-sans-serif, system-ui, sans-serif;
  --card-radius: 12px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.5);

  /* Layout vars */
  --timeline-padding: 40px;
  --card-width: 300px;
}

/* --- THEMES --- */

/* CYBERPUNK THEME */
body[data-theme="cyberpunk"] {
  --bg-grad: repeating-linear-gradient(0deg,
      transparent 0,
      transparent 1px,
      rgba(255, 0, 255, 0.05) 1px,
      rgba(255, 0, 255, 0.05) 2px),
    linear-gradient(to bottom, #050011, #120024);
  --text-main: #00f3ff;
  --text-muted: #ff00ff;
  --card-bg: rgba(10, 10, 10, 0.9);
  --card-border: #00f3ff;
  --accent: #ff00ff;
  --accent-glow: #00f3ff;
  --font-body: 'Courier New', Courier, monospace;
  --card-radius: 2px;
  --shadow: 0 0 15px rgba(0, 243, 255, 0.2);
}

/* MINIMAL THEME */
body[data-theme="minimal"] {
  --bg-grad: #f8f9fa;
  --text-main: #111;
  --text-muted: #666;
  --card-bg: #ffffff;
  --card-border: #eee;
  --accent: #111;
  --accent-glow: rgba(0, 0, 0, 0.05);
  --font-body: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --card-radius: 4px;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

/* RETRO THEME */
body[data-theme="retro"] {
  --bg-grad: #000000;
  --text-main: #33ff33;
  --text-muted: #22aa22;
  --card-bg: #001100;
  --card-border: #33ff33;
  --accent: #33ff33;
  --accent-glow: rgba(51, 255, 51, 0.2);
  --font-body: 'Press Start 2P', cursive, 'Courier New', monospace;
  /* Fallback to monospace if font not loaded */
  --card-radius: 0px;
  --shadow: none;
}

/* --- BASE STYLES --- */
* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg-grad);
  color: var(--text-main);
  font-family: var(--font-body);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

/* Header */
.site-header {
  padding: 20px 40px;
  border-bottom: 1px solid var(--card-border);
  background: rgba(0, 0, 0, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  z-index: 100;
}

.site-title {
  font-size: 1.5rem;
  margin: 0;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.site-subtitle {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.9rem;
}

.controls {
  display: flex;
  align-items: center;
  gap: 15px;
  flex-wrap: wrap;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.control-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
}

select,
button {
  background: var(--card-bg);
  color: var(--text-main);
  border: 1px solid var(--card-border);
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.9rem;
  transition: all 0.2s;
}

select:hover,
button:hover {
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.divider {
  width: 1px;
  height: 24px;
  background: var(--card-border);
}

/* Main Area */
main {
  flex: 1;
  position: relative;
  overflow: hidden;
  /* Important for different scroll modes */
  display: flex;
  justify-content: center;
  align-items: center;
}

.timeline-wrapper {
  width: 100%;
  height: 100%;
  display: flex;
  /* Default Horizontal Alignment */
  align-items: center;
  padding: var(--timeline-padding);
}

.timeline {
  /* Base styles (Horizontal by default) */
  display: flex;
  gap: 40px;
  padding: 40px;
  overflow-x: auto;
  overflow-y: hidden;
  width: 100%;
  height: 100%;
  align-items: center;
  scroll-behavior: smooth;
  /* Scrollbar Styling */
  scrollbar-width: thin;
  scrollbar-color: var(--accent) transparent;
}

.timeline::-webkit-scrollbar {
  height: 8px;
  width: 8px;
}

.timeline::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 4px;
}

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

/* --- EVENT CARD --- */
.event {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  min-width: var(--card-width);
  max-width: var(--card-width);
  padding: 20px;
  border-radius: var(--card-radius);
  box-shadow: var(--shadow);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 5px;
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s;
  flex-shrink: 0;
  /* Don't shrink in flex row */
}

.event:hover {
  transform: translateY(-5px) scale(1.02);
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
  z-index: 10;
}

.event-accent {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  margin-bottom: 10px;
  box-shadow: 0 0 10px var(--accent);
}

.event-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.event-title {
  font-size: 1.2rem;
  margin: 0;
  font-weight: 700;
  color: var(--accent);
}

.event-desc {
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text-main);
  opacity: 0.9;
  margin-top: 5px;
}

/* --- VIEW MODES --- */

/* 1. VERTICAL VIEW Override */
.timeline.view-vertical {
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  align-items: center;
  gap: 0;
  /* Handled by margins */
  padding-top: 40px;
  position: relative;
}

/* Center line for vertical */
.timeline.view-vertical::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  bottom: 0;
  width: 2px;
  background: var(--card-border);
  transform: translateX(-50%);
}

.timeline.view-vertical .event {
  width: 45%;
  /* Slightly less than half */
  min-width: unset;
  margin-bottom: 40px;
  position: relative;
}

/* Alternating sides */
.timeline.view-vertical .event:nth-child(odd) {
  margin-right: 50%;
  /* Push to left */
  align-items: flex-end;
  text-align: right;
  border-right: 3px solid var(--accent);
  border-left: 1px solid var(--card-border);
}

.timeline.view-vertical .event:nth-child(even) {
  margin-left: 50%;
  /* Push to right */
  align-items: flex-start;
  text-align: left;
  border-left: 3px solid var(--accent);
  border-right: 1px solid var(--card-border);
}

/* Connectors for vertical */
.timeline.view-vertical .event::after {
  content: '';
  position: absolute;
  top: 20px;
  width: 20px;
  height: 2px;
  background: var(--accent);
}

.timeline.view-vertical .event:nth-child(odd)::after {
  right: -22px;
}

/* Connect to center */
.timeline.view-vertical .event:nth-child(even)::after {
  left: -22px;
}

/* 2. GRAPH VIEW Override */
.timeline.view-graph {
  display: block;
  /* Standard block for absolute children */
  overflow: auto;
  /* Scrollable canvas */
  position: relative;
  width: 3000px;
  /* Force wide canvas */
  height: 100%;
  background-image: radial-gradient(var(--card-border) 1px, transparent 1px);
  background-size: 40px 40px;
  /* Grid dots */
}

.timeline.view-graph .event {
  position: absolute;
  width: 250px;
  min-width: unset;
  /* Top/Left set by JS */
}

.timeline.view-graph .event::before {
  /* Dot on the timeline axis if we wanted one, but for now specific positioning */
  content: '';
  position: absolute;
  left: 50%;
  top: -10px;
  width: 2px;
  height: 10px;
  background: var(--accent);
}

/* Footer */
.site-footer {
  text-align: center;
  padding: 10px;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--card-border);
  background: var(--card-bg);
}

/* Responsive */
@media (max-width: 768px) {
  .controls {
    width: 100%;
    justify-content: center;
  }

  .site-header {
    flex-direction: column;
    text-align: center;
  }

  /* Force vertical view on mobile for usability, or simplify layouts */
  .timeline.view-vertical .event {
    width: 90%;
    margin: 20px 0 !important;
    text-align: left !important;
    align-items: flex-start !important;
  }

  .timeline.view-vertical::before {
    left: 20px;
  }

  .timeline.view-vertical .event:nth-child(odd),
  .timeline.view-vertical .event:nth-child(even) {
    margin: 0 0 20px 40px;
    border: 1px solid var(--card-border);
    border-left: 3px solid var(--accent);
  }
}