/* ============================================
   SPACE RACE: SNAKES & LADDERS - STYLESHEET
   Cold War Era Space Theme
   ============================================ */

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

:root {
  --space-bg: #0a0a1a;
  --space-mid: #12122a;
  --panel-bg: #0d0d2b;
  --panel-border: #1a1a4a;

  --ussr-good: #c0392b;
  --ussr-good-bg: #e74c3c33;
  --ussr-good-border: #e74c3c;
  --ussr-bad: #6b1a1a;
  --ussr-bad-bg: #4a111166;
  --ussr-bad-border: #8b2020;

  --usa-good: #2471a3;
  --usa-good-bg: #3498db33;
  --usa-good-border: #3498db;
  --usa-bad: #1a3a6b;
  --usa-bad-bg: #11224a66;
  --usa-bad-border: #1a4a8b;

  --neutral-bg: #1a1a2e;
  --neutral-border: #2a2a4e;

  --text-primary: #e0e0e0;
  --text-secondary: #8888aa;
  --text-accent: #ffcc00;

  --font-display: 'Exo 2', sans-serif;
  --font-mono: 'Space Mono', monospace;
}

body {
  font-family: var(--font-mono);
  background: var(--space-bg);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Starfield backgrounds */
#stars, #stars2 {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

#stars {
  background: radial-gradient(1px 1px at 20px 30px, #fff, transparent),
              radial-gradient(1px 1px at 40px 70px, #fff, transparent),
              radial-gradient(1px 1px at 50px 160px, #ddd, transparent),
              radial-gradient(1px 1px at 90px 40px, #fff, transparent),
              radial-gradient(1px 1px at 130px 80px, #fff, transparent),
              radial-gradient(1px 1px at 160px 120px, #ddd, transparent),
              radial-gradient(1.5px 1.5px at 200px 50px, #fff, transparent),
              radial-gradient(1px 1px at 250px 180px, #fff, transparent),
              radial-gradient(1px 1px at 300px 30px, #ddd, transparent),
              radial-gradient(1.5px 1.5px at 350px 100px, #fff, transparent),
              radial-gradient(1px 1px at 400px 60px, #fff, transparent),
              radial-gradient(1px 1px at 450px 150px, #ddd, transparent);
  background-size: 500px 200px;
  animation: stars-drift 60s linear infinite;
}

#stars2 {
  background: radial-gradient(1px 1px at 10px 10px, #fff8, transparent),
              radial-gradient(1px 1px at 150px 150px, #fff8, transparent),
              radial-gradient(1px 1px at 300px 50px, #fff6, transparent),
              radial-gradient(1.5px 1.5px at 75px 180px, #fff8, transparent),
              radial-gradient(1px 1px at 220px 100px, #fff6, transparent);
  background-size: 400px 200px;
  animation: stars-drift 90s linear infinite;
  opacity: 0.5;
}

@keyframes stars-drift {
  from { transform: translateY(0); }
  to { transform: translateY(-200px); }
}

header {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 20px 20px 10px;
}

header h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: 0.15em;
  color: #ffcc00;
}

.heading-sub {
  font-size: 1em;
  font-weight: 800;
  letter-spacing: 0.15em;
}

.subtitle {
  font-family: var(--font-mono);
  color: var(--text-secondary);
  font-size: 1.4rem;
  letter-spacing: 0.15em;
  margin-top: 4px;
}

/* === MAIN LAYOUT === */
.game-container {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 20px;
  max-width: 1800px;
  margin: 10px auto;
  padding: 0 20px 20px;
  align-items: stretch;
  justify-content: center;
}

/* === BOARD === */
.board-wrapper {
  flex: 0 0 auto;
  align-self: flex-start;
}

.board-container {
  position: relative;
  width: calc(100vh - 240px);
  height: calc(100vh - 240px);
  max-width: calc(100vw - 400px);
}

.board-grid {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  grid-template-rows: repeat(10, 1fr);
  width: 100%;
  height: 100%;
  border: 2px solid var(--panel-border);
  border-radius: 4px;
  overflow: hidden;
  background: var(--space-mid);
}

#connections-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
}

#player-tokens {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 3;
}

/* === BOARD CELLS === */
.cell {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid #1a1a3a;
  font-size: clamp(0.65rem, 1.4vw, 0.9rem);
  cursor: default;
  transition: transform 0.15s, box-shadow 0.15s;
  overflow: hidden;
}

.cell:hover {
  z-index: 5;
  transform: scale(1.08);
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.2);
}

.cell-number {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(0.75rem, 1.4vw, 0.95rem);
  opacity: 0.9;
}

.cell-year {
  font-size: clamp(0.6rem, 1vw, 0.75rem);
  opacity: 0.7;
  margin-top: 1px;
}

.cell-icon {
  font-size: clamp(0.75rem, 1.3vw, 1rem);
  margin-top: 1px;
}

/* Cell color variants */
.cell-neutral {
  background: var(--neutral-bg);
  border-color: var(--neutral-border);
}

.cell-ussr-good {
  background: linear-gradient(135deg, #3d1111, #5a1a1a);
  border-color: var(--ussr-good-border);
  box-shadow: inset 0 0 15px rgba(231, 76, 60, 0.15);
}

.cell-ussr-bad {
  background: linear-gradient(135deg, #1a0808, #2d0e0e);
  border-color: var(--ussr-bad-border);
  box-shadow: inset 0 0 15px rgba(107, 26, 26, 0.3);
}

.cell-usa-good {
  background: linear-gradient(135deg, #0e1f3d, #142d5a);
  border-color: var(--usa-good-border);
  box-shadow: inset 0 0 15px rgba(52, 152, 219, 0.15);
}

.cell-usa-bad {
  background: linear-gradient(135deg, #080e1a, #0e162d);
  border-color: var(--usa-bad-border);
  box-shadow: inset 0 0 15px rgba(26, 58, 107, 0.3);
}

.cell-finish {
  background: linear-gradient(135deg, #2d2d00, #4a4a00);
  border-color: var(--text-accent);
  box-shadow: inset 0 0 20px rgba(255, 204, 0, 0.2);
}

.cell-start {
  background: linear-gradient(135deg, #1a2a1a, #2a3a2a);
  border-color: #4a8a4a;
  box-shadow: inset 0 0 15px rgba(74, 138, 74, 0.2);
}

/* === PLAYER TOKENS === */
.token {
  position: absolute;
  width: clamp(18px, 2.5vw, 28px);
  height: clamp(18px, 2.5vw, 28px);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(10px, 1.4vw, 16px);
  font-weight: bold;
  transition: left 0.4s ease, top 0.4s ease;
  z-index: 10;
  pointer-events: none;
}

.token-ussr {
  background: radial-gradient(circle at 35% 35%, #ff4444, #aa0000);
  border: 2px solid #ff6666;
  box-shadow: 0 0 10px rgba(255, 0, 0, 0.5);
  color: #ffe0e0;
}

.token-usa {
  background: radial-gradient(circle at 35% 35%, #4488ff, #0044aa);
  border: 2px solid #66aaff;
  box-shadow: 0 0 10px rgba(0, 100, 255, 0.5);
  color: #e0e8ff;
}

/* === SIDE PANEL === */
.side-panel {
  flex: 0 0 auto;
  min-width: 300px;
  max-width: 380px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-self: stretch;
  overflow-y: auto;
}

.side-panel section {
  flex: 1 1 auto;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.side-panel .control-section {
  flex: 1 1 auto;
}

.side-panel h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--text-accent);
  margin-bottom: 12px;
  text-align: center;
}

.side-panel h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

/* === DICE === */
.current-turn {
  text-align: center;
  margin-bottom: 12px;
}

#turn-indicator {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 4px 16px;
  border-radius: 20px;
}

.turn-ussr {
  background: rgba(231, 76, 60, 0.2);
  border: 1px solid var(--ussr-good-border);
  color: #ff6b5b;
}

.turn-usa {
  background: rgba(52, 152, 219, 0.2);
  border: 1px solid var(--usa-good-border);
  color: #5ba8ff;
}

.dice-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.dice {
  width: 80px;
  height: 80px;
  background: linear-gradient(145deg, #2a2a4a, #1a1a3a);
  border: 2px solid #4a4a6a;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  color: var(--text-accent);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  user-select: none;
}

.dice.rolling {
  animation: dice-shake 0.12s infinite alternate;
}

@keyframes dice-shake {
  0% { transform: rotate(-8deg) scale(1.05); }
  100% { transform: rotate(8deg) scale(1.05); }
}

/* === BUTTONS === */
.btn {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 12px 24px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
  text-transform: uppercase;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.btn:active {
  transform: translateY(0);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

.btn-roll {
  background: linear-gradient(135deg, #f39c12, #e67e22);
  color: #1a1a2e;
  width: 100%;
}

.btn-roll:hover:not(:disabled) {
  background: linear-gradient(135deg, #f5b041, #eb984e);
}

.btn-add {
  background: linear-gradient(135deg, #27ae60, #229954);
  color: #fff;
  width: 100%;
  font-size: 0.95rem;
  padding: 10px 16px;
}

.btn-add:hover:not(:disabled) {
  background: linear-gradient(135deg, #2ecc71, #27ae60);
}

.btn-reset {
  background: linear-gradient(135deg, #555, #444);
  color: var(--text-primary);
  width: 100%;
  flex-shrink: 0;
  margin-top: auto;
}

.btn-reset:hover {
  background: linear-gradient(135deg, #666, #555);
}

.btn-remove {
  background: #c0392b;
  color: #fff;
  font-size: 0.7rem;
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0;
}

/* === PLAYER STATUS === */
.player-status {
  display: flex;
  gap: 8px;
}

.player-card {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 14px 10px;
  border-radius: 6px;
  font-size: 1.1rem;
}

.ussr-card {
  background: rgba(231, 76, 60, 0.1);
  border: 1px solid rgba(231, 76, 60, 0.3);
}

.usa-card {
  background: rgba(52, 152, 219, 0.1);
  border: 1px solid rgba(52, 152, 219, 0.3);
}

.player-icon {
  font-size: 1.5rem;
  margin-bottom: 4px;
}

.player-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.1em;
}

.ussr-card .player-name { color: #ff6b5b; }
.usa-card .player-name { color: #5ba8ff; }

.player-pos {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-top: 2px;
}

/* === CONTROL PANEL === */
.control-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
}

.tab-btn {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 1rem;
  padding: 8px;
  background: var(--neutral-bg);
  border: 1px solid var(--neutral-border);
  color: var(--text-secondary);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
}

.tab-btn.active {
  background: var(--panel-border);
  color: var(--text-accent);
  border-color: var(--text-accent);
}

.tab-btn:hover {
  border-color: var(--text-secondary);
}

.control-form {
  margin-bottom: 12px;
}

.form-hint {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
  font-style: italic;
}

.form-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.form-row label {
  font-size: 1rem;
  color: var(--text-secondary);
  white-space: nowrap;
  min-width: 90px;
}

.form-row input {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  padding: 6px 10px;
  background: #0a0a1a;
  border: 1px solid var(--panel-border);
  border-radius: 4px;
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.2s;
}

.form-row input:focus {
  border-color: var(--text-accent);
}

.form-row input::placeholder {
  color: #444466;
}

.hidden {
  display: none !important;
}

/* === CONNECTIONS LIST === */
.connections-list {
  max-height: 200px;
  overflow-y: auto;
}

.connections-list::-webkit-scrollbar {
  width: 6px;
}

.connections-list::-webkit-scrollbar-track {
  background: var(--space-bg);
}

.connections-list::-webkit-scrollbar-thumb {
  background: var(--panel-border);
  border-radius: 3px;
}

.empty-msg {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-style: italic;
  text-align: center;
  padding: 10px;
}

.connection-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  margin-bottom: 4px;
  border-radius: 4px;
  font-size: 0.95rem;
}

.connection-item.rocket-item {
  background: rgba(39, 174, 96, 0.1);
  border: 1px solid rgba(39, 174, 96, 0.3);
}

.connection-item.meteor-item {
  background: rgba(231, 76, 60, 0.1);
  border: 1px solid rgba(231, 76, 60, 0.3);
}

.connection-item .conn-info {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* === LEGEND === */
.legend-items {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
  color: var(--text-secondary);
}

.legend-swatch {
  width: 18px;
  height: 18px;
  border-radius: 3px;
  flex-shrink: 0;
}

.swatch-ussr-good {
  background: linear-gradient(135deg, #3d1111, #5a1a1a);
  border: 1px solid var(--ussr-good-border);
}

.swatch-ussr-bad {
  background: linear-gradient(135deg, #1a0808, #2d0e0e);
  border: 1px solid var(--ussr-bad-border);
}

.swatch-usa-good {
  background: linear-gradient(135deg, #0e1f3d, #142d5a);
  border: 1px solid var(--usa-good-border);
}

.swatch-usa-bad {
  background: linear-gradient(135deg, #080e1a, #0e162d);
  border: 1px solid var(--usa-bad-border);
}

.swatch-neutral {
  background: var(--neutral-bg);
  border: 1px solid var(--neutral-border);
}

/* === TOOLTIP === */
.tooltip {
  position: fixed;
  z-index: 100;
  max-width: 320px;
  padding: 12px 16px;
  background: #1a1a3aee;
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  font-size: 0.9rem;
  line-height: 1.4;
  color: var(--text-primary);
  pointer-events: none;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
}

.tooltip .tt-date {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--text-accent);
  margin-bottom: 4px;
  letter-spacing: 0.05em;
}

.tooltip .tt-title {
  font-weight: bold;
  margin-bottom: 4px;
}

.tooltip .tt-desc {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.tooltip .tt-action {
  color: #2ecc71;
  font-size: 0.85rem;
  font-weight: bold;
  margin-top: 4px;
}

/* === WINNER OVERLAY === */
.winner-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}

.winner-content {
  text-align: center;
  padding: 40px 60px;
  background: var(--panel-bg);
  border: 2px solid var(--text-accent);
  border-radius: 12px;
  box-shadow: 0 0 60px rgba(255, 204, 0, 0.2);
}

.winner-content h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--text-accent);
  margin-bottom: 10px;
}

.winner-content p {
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.winner-content .btn {
  display: inline-block;
}

/* === GAME LOG (message area) === */
.game-message {
  text-align: center;
  font-size: 1.1rem;
  color: var(--text-accent);
  min-height: 20px;
  padding: 6px;
  margin-top: 6px;
  background: rgba(255, 204, 0, 0.05);
  border-radius: 4px;
}

/* === RESPONSIVE === */

/* Tablets and smaller desktops */
@media (max-width: 1100px) {
  .board-container {
    width: calc(100vh - 260px);
    height: calc(100vh - 260px);
    max-width: calc(100vw - 340px);
  }

  .side-panel {
    min-width: 260px;
    max-width: 320px;
  }
}

/* Stack layout on narrower screens */
@media (max-width: 900px) {
  .game-container {
    flex-direction: column;
    align-items: center;
  }

  .board-wrapper {
    align-self: center;
  }

  .board-container {
    width: min(85vw, 520px);
    height: min(85vw, 520px);
    max-width: none;
  }

  .side-panel {
    max-width: 520px;
    min-width: auto;
    width: min(85vw, 520px);
    align-self: auto;
  }

  .side-panel section {
    flex: 0 0 auto;
  }

  header {
    padding: 14px 16px 8px;
  }

  header h1 {
    font-size: clamp(1.6rem, 4vw, 2.5rem);
  }
}

/* Small tablets / large phones */
@media (max-width: 600px) {
  .game-container {
    padding: 0 10px 16px;
    gap: 14px;
  }

  .board-container {
    width: min(95vw, 420px);
    height: min(95vw, 420px);
  }

  .side-panel {
    width: min(95vw, 420px);
    gap: 10px;
  }

  .side-panel section {
    padding: 14px;
  }

  .side-panel h2 {
    font-size: 1.1rem;
    margin-bottom: 10px;
  }

  header h1 {
    font-size: clamp(1.3rem, 5vw, 2rem);
  }

  .heading-sub {
    display: block;
    margin-top: 2px;
  }

  .dice {
    width: 65px;
    height: 65px;
    font-size: 1.8rem;
  }

  #turn-indicator {
    font-size: 1rem;
  }

  .player-card {
    padding: 10px 8px;
    font-size: 0.95rem;
  }

  .player-name { font-size: 1rem; }
  .player-pos { font-size: 0.95rem; }

  .btn {
    font-size: 0.95rem;
    padding: 10px 18px;
  }

  .legend-item {
    font-size: 0.9rem;
  }

  .game-message {
    font-size: 0.95rem;
  }

  .cell-number {
    font-size: clamp(0.55rem, 2.5vw, 0.8rem);
  }

  .cell-year {
    font-size: clamp(0.45rem, 2vw, 0.65rem);
  }

  .cell-icon {
    font-size: clamp(0.55rem, 2.5vw, 0.8rem);
  }

  .tooltip {
    max-width: 250px;
    font-size: 0.8rem;
    padding: 8px 12px;
  }

  .tooltip .tt-date { font-size: 0.7rem; }
  .tooltip .tt-desc { font-size: 0.75rem; }
}

/* Phones */
@media (max-width: 400px) {
  header {
    padding: 10px 10px 6px;
  }

  header h1 {
    font-size: 1.2rem;
    letter-spacing: 0.08em;
  }

  .heading-sub {
    font-size: 0.85em;
  }

  .board-container {
    width: 98vw;
    height: 98vw;
  }

  .side-panel {
    width: 98vw;
  }

  .side-panel section {
    padding: 10px;
  }

  .dice {
    width: 55px;
    height: 55px;
    font-size: 1.5rem;
  }

  .player-status {
    gap: 6px;
  }

  .cell-number {
    font-size: clamp(0.45rem, 2.2vw, 0.65rem);
  }

  .cell-year {
    font-size: clamp(0.35rem, 1.8vw, 0.5rem);
  }
}