/* Lightbot Runner (Code Robot Lab) — yenilenmiş görünüm (yalnızca görsel; oyun mantığı app.js'te değişmedi) */
:root {
  --ink: #0b2447;
  --soft: #5b7096;
  --line: #d3e1fb;
  --navy-1: #0a1738;
  --navy-2: #12285c;
  --navy-3: #1d4ed8;
  --c-move: #16a34a;
  --c-move-2: #22c55e;
  --c-turn: #2563eb;
  --c-turn-2: #3b82f6;
  --c-jump: #7c3aed;
  --c-jump-2: #a78bfa;
  --c-light: #f59e0b;
  --c-light-2: #fbbf24;
  --c-proc: #0d9488;
  --c-proc-2: #2dd4bf;
  --c-del: #dc2626;
  --c-del-2: #f87171;
  --font: "Nunito", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; width: 100%; height: 100%; overflow: hidden; }
body {
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(900px 500px at 8% -10%, #ffffff 0%, transparent 60%),
    radial-gradient(700px 500px at 100% 110%, #c7dcff 0%, transparent 60%),
    radial-gradient(circle, rgba(37, 99, 235, .10) 1.2px, transparent 1.6px) 0 0 / 26px 26px,
    linear-gradient(160deg, #eef4ff, #dbe8ff);
}

.app {
  height: calc(100% - 116px);
  display: grid;
  grid-template-columns: 96px 1fr 360px;
  gap: 14px;
  padding: 12px 14px 6px;
}

/* ---------- sol araç çubuğu ---------- */
.left-tools {
  background: linear-gradient(165deg, var(--navy-1), var(--navy-2));
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 22px;
  padding: 14px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 11px;
  box-shadow: 0 16px 34px rgba(11, 36, 71, .32), inset 0 1px 0 rgba(255, 255, 255, .14);
}

.tool-btn {
  width: 66px;
  height: 54px;
  border: 0;
  border-radius: 16px;
  background: linear-gradient(145deg, #4cc3ee, #1d8fd0);
  color: #fff;
  font-size: 27px;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 7px 14px rgba(0, 0, 0, .3), inset 0 1px 0 rgba(255, 255, 255, .4);
  transition: transform .12s ease, filter .12s ease, box-shadow .12s ease;
}
.tool-btn:hover:not(:disabled) { transform: translateY(-2px); filter: brightness(1.08); }
.tool-btn:active:not(:disabled) { transform: translateY(1px); box-shadow: 0 3px 8px rgba(0, 0, 0, .3); }
.tool-btn.run { background: linear-gradient(145deg, #4ade80, #16a34a); }
.tool-btn.stop { background: linear-gradient(145deg, #f87171, #dc2626); }
.tool-btn:disabled { opacity: 0.4; cursor: not-allowed; box-shadow: none; }

.level-info {
  margin-top: auto;
  width: 100%;
  text-align: center;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 16px;
  padding: 9px 4px 8px;
  color: #fff;
}
.level-id { font-size: 30px; font-weight: 900; line-height: 1; letter-spacing: .5px; text-shadow: 0 2px 8px rgba(0, 0, 0, .35); }
.level-title { font-size: 11px; font-weight: 700; opacity: .85; margin-top: 5px; }

/* ---------- oyun tahtası ---------- */
.board-wrap {
  position: relative;
  border-radius: 26px;
  overflow: hidden;
  background: var(--navy-1);
  border: 1px solid rgba(255, 255, 255, .12);
  box-shadow: 0 22px 46px rgba(11, 36, 71, .38), inset 0 1px 0 rgba(255, 255, 255, .18);
}
#game-canvas { width: 100%; height: 100%; display: block; }

/* ---------- program paneli ---------- */
.program-wrap {
  background: linear-gradient(170deg, #ffffff, #f1f6ff);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 11px;
  box-shadow: 0 16px 34px rgba(15, 45, 92, .14);
}

.program-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: 4px;
  background: #e3ecfb;
  border-radius: 14px;
}
.tab-btn {
  border: 0;
  border-radius: 11px;
  background: transparent;
  color: #4a5f86;
  font-family: inherit;
  font-weight: 900;
  letter-spacing: .4px;
  padding: 9px 4px;
  cursor: pointer;
  transition: background .15s, color .15s, box-shadow .15s;
}
.tab-btn:hover { background: rgba(255, 255, 255, .6); }
.tab-btn.active {
  background: linear-gradient(145deg, #3b82f6, #1d4ed8);
  color: #fff;
  box-shadow: 0 6px 12px rgba(37, 99, 235, .35);
}

.program-track {
  background: rgba(37, 99, 235, .05);
  border: 2px dashed #b9cdf1;
  border-radius: 16px;
  min-height: 105px;
  padding: 9px;
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  align-content: start;
}
.program-track.hidden { display: none; }

.slot {
  height: 46px;
  border-radius: 13px;
  background: #fff;
  border: 2px dashed #c3d3ef;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-weight: 900;
  font-size: 20px;
  color: #9db1d6;
  user-select: none;
  cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease, filter .12s ease;
}
.slot.filled {
  border-style: solid;
  border-color: rgba(0, 0, 0, .12);
  color: #fff;
  background: linear-gradient(145deg, var(--c-turn-2), var(--c-turn));
  box-shadow: 0 5px 10px rgba(15, 45, 92, .22), inset 0 1px 0 rgba(255, 255, 255, .38);
  text-shadow: 0 1px 3px rgba(0, 0, 0, .3);
}
.slot.filled:hover { transform: translateY(-2px); filter: brightness(1.08); }
.slot.filled[data-cmd="F"] { background: linear-gradient(145deg, var(--c-move-2), var(--c-move)); }
.slot.filled[data-cmd="L"], .slot.filled[data-cmd="R"] { background: linear-gradient(145deg, var(--c-turn-2), var(--c-turn)); }
.slot.filled[data-cmd="J"] { background: linear-gradient(145deg, var(--c-jump-2), var(--c-jump)); }
.slot.filled[data-cmd="B"] { background: linear-gradient(145deg, var(--c-light-2), var(--c-light)); }
.slot.filled[data-cmd="P1"], .slot.filled[data-cmd="P2"] { background: linear-gradient(145deg, var(--c-proc-2), var(--c-proc)); font-size: 17px; }

/* ---------- komut çubuğu ---------- */
.command-bar {
  height: 104px;
  margin: 0 14px 12px;
  padding: 12px 14px;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  background: linear-gradient(165deg, var(--navy-1), var(--navy-2));
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 24px;
  box-shadow: 0 16px 34px rgba(11, 36, 71, .32), inset 0 1px 0 rgba(255, 255, 255, .14);
}

.cmd-btn {
  border: 0;
  border-radius: 16px;
  background: linear-gradient(145deg, #e4ecf8, #c3d2e8);
  color: #2b3a52;
  font-family: inherit;
  font-size: 26px;
  line-height: 1;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 6px 0 rgba(0, 0, 0, .28), 0 10px 16px rgba(0, 0, 0, .25), inset 0 1px 0 rgba(255, 255, 255, .55);
  transition: transform .1s ease, box-shadow .1s ease, filter .1s ease;
}
.cmd-btn:hover:not(:disabled) { transform: translateY(-2px); filter: brightness(1.07); }
.cmd-btn:active:not(:disabled) { transform: translateY(4px); box-shadow: 0 2px 0 rgba(0, 0, 0, .28), 0 4px 8px rgba(0, 0, 0, .25); }
.cmd-btn[data-cmd="F"] { background: linear-gradient(145deg, var(--c-move-2), var(--c-move)); color: #fff; }
.cmd-btn[data-cmd="L"], .cmd-btn[data-cmd="R"] { background: linear-gradient(145deg, var(--c-turn-2), var(--c-turn)); color: #fff; }
.cmd-btn[data-cmd="J"] { background: linear-gradient(145deg, var(--c-jump-2), var(--c-jump)); color: #fff; }
.cmd-btn[data-cmd="B"] { background: linear-gradient(145deg, var(--c-light-2), var(--c-light)); color: #fff; }
.cmd-btn[data-cmd="P1"], .cmd-btn[data-cmd="P2"] { background: linear-gradient(145deg, var(--c-proc-2), var(--c-proc)); color: #fff; font-size: 22px; }
.cmd-btn[data-cmd="X"] { background: linear-gradient(145deg, var(--c-del-2), var(--c-del)); color: #fff; }
.cmd-btn.accent { /* eski sınıf: komuta özel renk yoksa vurgulu görünüm */
  color: #fff;
}
.cmd-btn:disabled { opacity: 0.3; cursor: not-allowed; box-shadow: 0 3px 0 rgba(0, 0, 0, .2); filter: grayscale(.5); }

/* ---------- bildirim ---------- */
.toast {
  position: absolute;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%);
  background: rgba(8, 18, 44, .92);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 999px;
  padding: 10px 18px;
  font-weight: 800;
  box-shadow: 0 10px 24px rgba(0, 0, 0, .35);
  animation: toastIn .22s ease;
  max-width: 92%;
  text-align: center;
}
.toast.hidden { display: none; }
@keyframes toastIn { from { opacity: 0; transform: translate(-50%, 10px); } to { opacity: 1; transform: translate(-50%, 0); } }

/* ---------- küçük ekranlar ---------- */
@media (max-width: 1200px) {
  .app { grid-template-columns: 78px 1fr 300px; }
  .tool-btn { width: 56px; height: 48px; font-size: 24px; }
  .level-id { font-size: 25px; }
  .program-track { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  body { overflow: auto; }
  .app {
    height: auto;
    grid-template-columns: 1fr;
    grid-template-rows: auto minmax(280px, 56vh) auto;
  }
  .left-tools {
    flex-direction: row;
    justify-content: flex-start;
    gap: 8px;
    padding: 8px;
    border-radius: 18px;
  }
  .level-info { margin-top: 0; margin-left: auto; width: auto; padding: 6px 12px; text-align: right; }
  .program-wrap { min-height: 220px; }
  .command-bar {
    height: auto;
    margin: 0 10px 12px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .cmd-btn { min-height: 54px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ---------- bölüm seçici (Kolay / Orta / Zor) ---------- */
.left-tools { gap: 9px; }
.tool-btn { height: 48px; }
.modal { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 16px; }
.modal.hidden { display: none; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(8, 18, 44, .62); backdrop-filter: blur(4px); }
.modal-card {
  position: relative; width: min(860px, 100%); max-height: 90vh; overflow: auto; padding: 18px; border-radius: 26px;
  background: linear-gradient(170deg, #ffffff, #f1f6ff); border: 1px solid var(--line); box-shadow: 0 30px 70px rgba(0, 0, 0, .4);
}
.modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.modal-head h3 { margin: 0; font-size: 22px; font-weight: 900; color: var(--ink); }
.modal-x { width: 40px; height: 40px; font-size: 16px; }
.picker-group { margin-bottom: 16px; }
.picker-group h4 { margin: 0 0 8px; font-size: 15px; font-weight: 900; color: var(--ink); display: flex; align-items: center; gap: 8px; }
.picker-group h4::before { content: ""; width: 12px; height: 12px; border-radius: 4px; background: var(--c-move); }
.picker-group.cat-medium h4::before { background: var(--c-light); }
.picker-group.cat-hard h4::before { background: var(--c-del); }
.picker-group h4 small { color: var(--soft); font-weight: 800; }
.picker-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(66px, 1fr)); gap: 8px; }
.tile {
  position: relative; display: grid; gap: 2px; justify-items: center; padding: 9px 4px 7px; border-radius: 14px; border: 2px solid var(--line);
  background: #fff; color: var(--ink); font-family: inherit; font-weight: 900; cursor: pointer; transition: transform .12s, border-color .12s;
}
.tile:hover:not(:disabled) { transform: translateY(-2px); border-color: #3b82f6; }
.tile .t-num { font-size: 18px; }
.tile .t-size { font-size: 10px; color: var(--soft); font-weight: 800; }
.tile.done { border-color: #86efac; background: #f0fdf4; }
.tile.current { border-color: #2563eb; box-shadow: 0 0 0 3px rgba(37, 99, 235, .25); }
.tile:disabled { opacity: .45; cursor: not-allowed; }
.tile .lock { position: absolute; top: 3px; right: 5px; font-size: 11px; }