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

html, body {
  width: 100%; height: 100%;
  background: #071a09;
  font-family: 'Segoe UI', Arial, sans-serif;
  color: #e0e0e0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* ── Screens ─────────────────────────────────────────────── */

.screen {
  display: none;
  width: 100%;
  max-width: 480px;
  height: 100dvh;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px 16px;
  text-align: center;
}
.screen.active { display: flex; }

/* ── Title screen ────────────────────────────────────────── */

.title-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  width: 100%;
}

.title-icon { font-size: 3.2rem; margin-bottom: 4px; }

#screen-title h1 {
  font-size: 2.8rem;
  font-weight: 900;
  letter-spacing: 5px;
  color: #6ed44a;
  text-shadow: 0 0 24px rgba(110,212,74,0.4), 0 2px 0 #2a6010;
  margin-bottom: 4px;
}

.subtitle {
  font-size: 0.85rem;
  color: #507040;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.rules-box {
  background: #0c1f0e;
  border: 1px solid #1e3d18;
  border-radius: 10px;
  padding: 14px 18px;
  margin-bottom: 22px;
  text-align: left;
  width: 100%;
}

.rules-box h3 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: #3a5830;
  margin-bottom: 10px;
}

.rules-box ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.rules-box li {
  font-size: 0.85rem;
  color: #7a9870;
  padding-left: 14px;
  position: relative;
  line-height: 1.4;
}

.rules-box li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: #3a5830;
}

.rules-box .c-fwd   { color: #ff9966; font-weight: bold; }
.rules-box .c-lr    { color: #f5c400; font-weight: bold; }
.rules-box .c-shoot { color: #4ecdc4; font-weight: bold; }

/* ── Buttons ─────────────────────────────────────────────── */

.btn {
  padding: 12px 36px;
  font-size: 1rem;
  font-weight: bold;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  letter-spacing: 1px;
}
.btn:hover  { transform: scale(1.04); }
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: linear-gradient(135deg, #2a8c10, #6ed44a);
  color: #0a1f0a;
}
.btn-primary:hover { background: linear-gradient(135deg, #339914, #7fe858); }

.hidden { display: none !important; }

/* ── Game screen ─────────────────────────────────────────── */

#screen-game {
  justify-content: flex-start;
  gap: 0;
  padding: 0;
}

/* ── Scoreboard ──────────────────────────────────────────── */

#scoreboard {
  width: 100%;
  background: #040f05;
  border-bottom: 2px solid #142818;
  display: flex;
  align-items: center;
  padding: 5px 16px;
  flex-shrink: 0;
}

.score-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1px;
}

.score-col.right { align-items: flex-end; }

.team-name {
  font-size: 0.65rem;
  font-weight: bold;
  letter-spacing: 3px;
  text-transform: uppercase;
}
.team-name.you { color: #6ed44a; }
.team-name.ai  { color: #4488ff; }

.team-score {
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1;
  color: #6ed44a;
  font-variant-numeric: tabular-nums;
}
.team-score.ai { color: #4488ff; }

.score-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 0 12px;
}

#poss-label {
  font-size: 0.8rem;
  font-weight: bold;
  letter-spacing: 1px;
}
#poss-label.poss-you { color: #6ed44a; }
#poss-label.poss-ai  { color: #4488ff; }

#phase-label {
  font-size: 0.6rem;
  color: #3a5830;
  letter-spacing: 1px;
  text-transform: uppercase;
  white-space: nowrap;
}

/* ── Field ───────────────────────────────────────────────── */

#field-container {
  flex: 1;
  min-height: 0;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4px 0;
  background: #071a09;
  position: relative;
  overflow: hidden;
}

#field-container::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent calc(10% - 1px),
    rgba(255,255,255,0.015) calc(10% - 1px),
    rgba(255,255,255,0.015) 10%
  );
  pointer-events: none;
}

.goal-label {
  font-size: 0.65rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 3px 0;
  z-index: 1;
}
.ai-goal   { color: #2244aa; }
.your-goal { color: #3a6020; }

#field {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2px;
  padding: 3px;
  background: #0a1f0c;
  border: 1px solid #142818;
  width: min(250px, 86vw);
  z-index: 1;
}

.cell {
  aspect-ratio: 2 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  font-weight: bold;
  color: rgba(255,255,255,0.35);
  background: #0f2812;
  border: 1px solid #142818;
  border-radius: 1px;
  transition: background 0.2s;
}

.cell.midfield {
  background: #162e18;
  border-color: #1e3d20;
}

.cell.goal-row {
  background: #0c1f0e;
  border-color: #0f2812;
}

.cell.has-ball {
  font-size: 1rem;
  background: #1a3a1c;
  border-color: #3a7030;
  box-shadow: 0 0 8px rgba(110,212,74,0.3);
}

/* difficulty color tiers */
.cell.diff-easy   { color: rgba(110,212,74,0.7); }
.cell.diff-medium { color: rgba(245,196,0,0.6); }
.cell.diff-hard   { color: rgba(255,120,60,0.6); }
.cell.diff-vhard  { color: rgba(255,80,80,0.5); }

.cell.no-shot {
  background: #0b1a0d;
  border-color: #0e1f10;
}

.goal-net {
  font-size: 1.3rem;
  width: min(250px, 86vw);
  text-align: center;
  line-height: 1;
  z-index: 1;
}

.goal-net.your-net {
  display: inline-block;
  transform: rotate(180deg);
}

/* ── Log area ────────────────────────────────────────────── */

#log-area {
  flex-shrink: 0;
  width: 100%;
  padding: 4px 16px;
  min-height: 38px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 2px;
  background: #040f05;
  border-top: 1px solid #142818;
  border-bottom: 1px solid #142818;
}

.log-entry {
  font-size: 0.72rem;
  color: #5a8050;
  border-left: 2px solid #1e4018;
  padding-left: 7px;
  line-height: 1.4;
}
.log-entry:last-child { color: #8ab880; }

/* ── Controls ────────────────────────────────────────────── */

#controls {
  flex-shrink: 0;
  width: 100%;
  background: #040f05;
  padding: 8px 16px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 82px;
}

.btn-group {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: center;
}

.card-btn, .def-btn {
  width: 56px;
  height: 56px;
  background: #0c1f0e;
  border: 2px solid #1e3d18;
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  transition: all 0.15s;
  color: #e0e0e0;
  font-size: 1.4rem;
}

.card-btn span, .def-btn span {
  font-size: 0.55rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #507040;
  line-height: 1;
}

.card-btn:hover, .def-btn:hover {
  background: #142a16;
  border-color: #3a7030;
  transform: translateY(-2px);
}

.card-btn:active, .def-btn:active {
  transform: translateY(0) scale(0.96);
}

.card-btn:disabled, .def-btn:disabled {
  opacity: 0.3;
  cursor: default;
  transform: none;
}

.shoot-btn {
  border-color: #1e4848;
  background: #0a1f1f;
}
.shoot-btn:not(:disabled):hover {
  border-color: #4ecdc4;
  background: #0f2a2a;
}

.def-prompt {
  font-size: 0.65rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: #3a5830;
  width: 100%;
  text-align: center;
  margin-bottom: 2px;
}

.def-btns {
  display: flex;
  gap: 10px;
}

/* ── Game over screen ────────────────────────────────────── */

.overlay-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  padding: 30px 24px;
  max-width: 380px;
  width: 100%;
}

#gameover-icon { font-size: 4rem; }

#gameover-title {
  font-size: 2.4rem;
  font-weight: 900;
  letter-spacing: 3px;
  color: #6ed44a;
}
#gameover-title.cpu-win { color: #4488ff; }

.final-score-row {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 1rem;
  font-weight: bold;
  letter-spacing: 2px;
}

.final-score-row .score {
  font-size: 2.4rem;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
}
.you-score { color: #6ed44a; }
.ai-score  { color: #4488ff; }
.you-label { color: #4a7030; }
.ai-label  { color: #2244aa; }
.sep { color: #2a3a2a; font-size: 1.5rem; }

/* ── Responsive ──────────────────────────────────────────── */

@media (max-height: 580px) {
  .title-icon { font-size: 2.4rem; }
  #screen-title h1 { font-size: 2.2rem; }
  .rules-box { padding: 10px 14px; }
  .card-btn, .def-btn { width: 50px; height: 50px; font-size: 1.2rem; }
  .team-score { font-size: 1.8rem; }
  #scoreboard { padding: 3px 16px; }
}


.block-btn {
  border-color: #1e3048;
  background: #0a151f;
}
.block-btn:not(:disabled):hover {
  border-color: #4488ff;
  background: #0f1a2a;
}