/* =============================================
   GRANDINĖLĖ - Redesigned Styles
   3 tipų grandinės horizontalioje išdėstyme
   ============================================= */

/* =====================
   SPALVŲ SCHEMA
   ===================== */
:root {
  --chain-primary: #43a0fc;
  --chain-secondary: #5eb8ff;
  --chain-accent: #00d4ff;
  --chain-dark: #1e3a8a;
  --chain-success: #10b981;
  --chain-danger: #ef4444;
  --chain-warning: #f59e0b;
  --chain-bg: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
}

/* =====================
   PAGRINDINIS FONAS
   ===================== */
body {
  background: var(--chain-bg);
  background-attachment: fixed;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 50px,
      rgba(67, 160, 252, 0.03) 50px,
      rgba(67, 160, 252, 0.03) 51px
    ),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 50px,
      rgba(67, 160, 252, 0.03) 50px,
      rgba(67, 160, 252, 0.03) 51px
    );
  opacity: 0.5;
  pointer-events: none;
  z-index: 0;
}

/* =====================
   ANTRAŠTĖS
   ===================== */
.chain-title {
  color: var(--chain-primary);
  text-shadow:
    0 0 10px rgba(67, 160, 252, 0.5),
    0 0 20px rgba(67, 160, 252, 0.3),
    0 2px 4px rgba(0, 0, 0, 0.5);
}

.mode-subtitle {
  color: var(--chain-secondary);
}

/* =====================
   KORTELĖS
   ===================== */
.chain-card {
  border: 2px solid var(--chain-primary);
  background: rgba(30, 41, 59, 0.7);
  backdrop-filter: blur(15px);
  box-shadow:
    0 0 20px rgba(67, 160, 252, 0.2),
    inset 0 0 20px rgba(67, 160, 252, 0.05);
  position: relative;
  z-index: 1;
}

.chain-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--chain-accent),
    transparent
  );
  animation: chainFlow 2s linear infinite;
}

@keyframes chainFlow {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* =====================
   MYGTUKAI
   ===================== */
.chain-btn {
  background: linear-gradient(135deg, var(--chain-primary), var(--chain-accent));
  color: var(--mode-text-primary);
  font-weight: 600;
  box-shadow:
    0 4px 16px rgba(67, 160, 252, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.chain-btn:hover {
  box-shadow:
    0 6px 24px rgba(67, 160, 252, 0.6),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
  background: linear-gradient(135deg, var(--chain-accent), var(--chain-primary));
}

/* =====================
   GAME SCREENS
   ===================== */
.game-screen {
  display: none;
}

.game-screen.active {
  display: block;
}

/* =====================
   START SCREEN - TIPŲ GRID
   ===================== */
.chain-types-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.chain-type-card {
  padding: 1.5rem;
  background: rgba(67, 160, 252, 0.1);
  border: 2px solid var(--chain-primary);
  border-radius: 12px;
  text-align: center;
  transition: all 0.3s ease;
}

.chain-type-card:hover {
  border-color: var(--chain-accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(67, 160, 252, 0.3);
}

.chain-type-card h3 {
  color: var(--chain-accent);
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
}

.type-description {
  color: var(--chain-secondary);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.type-example {
  font-family: 'Courier New', monospace;
  font-size: 1rem;
  color: var(--mode-text-primary);
  background: rgba(0, 212, 255, 0.1);
  padding: 0.75rem;
  border-radius: 8px;
  letter-spacing: 1px;
}

/* =====================
   GAME INFO HEADER
   ===================== */
.game-info-header {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding: 1.5rem;
  background: rgba(30, 41, 59, 0.8);
  border: 2px solid var(--chain-primary);
  border-radius: 12px;
  margin-bottom: 2rem;
}

.info-stat {
  text-align: center;
}

.stat-label {
  display: block;
  font-size: 0.875rem;
  color: var(--chain-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
}

.stat-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--mode-text-primary);
}

.chain-prize {
  color: var(--chain-warning) !important;
  text-shadow: 0 0 10px rgba(245, 158, 11, 0.5);
  font-size: 2rem !important;
}

/* =====================
   CHAIN GRID - HORIZONTALI GRANDINĖ
   ===================== */
.chain-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.chain-question-card {
  background: rgba(30, 41, 59, 0.8);
  border: 2px solid var(--chain-primary);
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  position: relative;
  transition: all 0.3s ease;
}

.chain-question-card:hover {
  border-color: var(--chain-accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(67, 160, 252, 0.3);
}

.question-number {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 35px;
  height: 35px;
  background: linear-gradient(135deg, var(--chain-primary), var(--chain-accent));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
  color: white;
  box-shadow: 0 4px 12px rgba(67, 160, 252, 0.4);
}

.question-clue {
  font-size: 1rem;
  color: var(--mode-text-primary);
  margin-bottom: 1rem;
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1.4;
}

.question-image-container {
  margin-bottom: 1rem;
}

.question-image {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  max-height: 150px;
  object-fit: cover;
}

.chain-answer-input {
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 2px;
  background: rgba(15, 23, 42, 0.8);
  border: 2px solid var(--chain-primary);
  border-radius: 8px;
  color: var(--mode-text-primary);
  transition: all 0.3s ease;
  margin-bottom: 1rem;
}

.chain-answer-input:focus {
  outline: none;
  border-color: var(--chain-accent);
  box-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
}

.chain-answer-input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.chain-answer-input.correct {
  border-color: var(--chain-success);
  background: rgba(16, 185, 129, 0.1);
}

.chain-answer-input.incorrect {
  border-color: var(--chain-danger);
  background: rgba(239, 68, 68, 0.1);
}

/* =====================
   HINT BUTTON
   ===================== */
.hint-btn {
  width: 100%;
  padding: 0.5rem;
  font-size: 0.875rem;
  background: rgba(67, 160, 252, 0.2);
  border: 2px solid var(--chain-primary);
  border-radius: 8px;
  color: var(--mode-text-primary);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-bottom: 0.5rem;
}

.hint-btn:hover:not(:disabled) {
  background: rgba(67, 160, 252, 0.3);
  border-color: var(--chain-accent);
  transform: translateY(-2px);
}

.hint-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.hint-display {
  padding: 0.75rem;
  background: rgba(0, 212, 255, 0.1);
  border: 2px solid var(--chain-accent);
  border-radius: 8px;
  font-size: 0.875rem;
  color: var(--chain-accent);
  margin-top: 0.5rem;
}

.answer-status {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  min-height: 20px;
}

.answer-status.correct {
  color: var(--chain-success);
}

.answer-status.incorrect {
  color: var(--chain-danger);
}

/* =====================
   SUBMIT SECTION
   ===================== */
.submit-section {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.mode-btn-secondary {
  background: rgba(67, 160, 252, 0.2);
  border: 2px solid var(--chain-primary);
  color: var(--mode-text-primary);
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.mode-btn-secondary:hover:not(:disabled) {
  background: rgba(67, 160, 252, 0.3);
  border-color: var(--chain-accent);
  transform: translateY(-2px);
}

/* =====================
   RESULTS SCREEN
   ===================== */
.results-card {
  text-align: center;
  padding: 2rem;
}

.results-title {
  font-size: 2rem;
  color: var(--chain-primary);
  margin-bottom: 2rem;
}

.results-summary {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: rgba(15, 23, 42, 0.6);
  border-radius: 12px;
}

.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem;
  border-bottom: 1px solid rgba(67, 160, 252, 0.2);
}

.result-item:last-child {
  border-bottom: none;
}

.result-label {
  font-size: 1rem;
  color: var(--chain-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.result-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--mode-text-primary);
}

.final-prize {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 2px solid var(--chain-accent);
}

.final-prize .result-label {
  font-size: 1.25rem;
  color: var(--chain-accent);
}

.final-prize .result-value {
  font-size: 2rem;
  color: var(--chain-success);
  text-shadow: 0 0 15px rgba(16, 185, 129, 0.5);
}

.chain-success {
  color: var(--chain-success) !important;
}

.chain-danger {
  color: var(--chain-danger) !important;
}

.results-message {
  font-size: 1.25rem;
  color: var(--mode-text-primary);
  margin: 2rem 0;
  padding: 1rem;
  background: rgba(67, 160, 252, 0.1);
  border-radius: 8px;
}

/* =====================
   RESPONSIVE - MOBILE
   ===================== */
@media (max-width: 1024px) {
  .chain-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .chain-grid {
    grid-template-columns: 1fr;
  }

  .game-info-header {
    flex-direction: column;
    gap: 1rem;
  }

  .info-stat {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
  }

  .stat-label,
  .stat-value {
    display: inline;
  }

  .chain-types-grid {
    grid-template-columns: 1fr;
  }

  .submit-section {
    flex-direction: column;
  }

  .submit-section button {
    width: 100%;
  }
}