:root {
  --bg0: #0b1026;
  --bg1: #1a1f4a;
  --moon: #ffd479;
  --ink: #e9ecff;
  --muted: #8b93c4;
  --line: rgba(170, 180, 255, 0.14);
  --glass: rgba(255, 255, 255, 0.035);
  --kw: #c4a1ff;
  --str: #8ff0c4;
  --num: #ffc46b;
  --com: #6f7799;
  --op: #ff8fc7;
  --punc: #8cc8ff;
  --id: #e9ecff;
  --bi: #f6e7a8;
  --err: #ff6b81;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  background: radial-gradient(1200px 700px at 85% -10%, rgba(255, 212, 121, 0.10), transparent 60%),
              linear-gradient(160deg, var(--bg0) 0%, var(--bg1) 100%);
  background-attachment: fixed;
  color: var(--ink);
  font-family: 'Fredoka', ui-rounded, sans-serif;
  min-height: 100vh;
}

.font-mono, code, pre, textarea { font-family: 'JetBrains Mono', monospace; }
.serif-i { font-family: 'Instrument Serif', serif; font-style: italic; }

/* stars */
.sky { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.star {
  position: absolute; border-radius: 50%; background: #fff;
  animation: twinkle 3.5s ease-in-out infinite;
  opacity: 0.2;
}
@keyframes twinkle { 0%,100% { opacity: .15; transform: scale(.8); } 50% { opacity: .9; transform: scale(1.15); } }

.glass {
  background: var(--glass);
  border: 1px solid var(--line);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 18px;
}

/* moon */
.moon-logo { transform-origin: 50% 60%; filter: drop-shadow(0 0 14px rgba(255, 212, 121, .45)); }
.moon-wobble { animation: wobble .9s cubic-bezier(.3,1.6,.5,1); }
@keyframes wobble {
  0% { transform: rotate(0) scale(1); }
  20% { transform: rotate(-18deg) scale(1.12); }
  45% { transform: rotate(12deg) scale(1.05); }
  70% { transform: rotate(-6deg); }
  100% { transform: rotate(0) scale(1); }
}

.btn {
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.05);
  color: var(--ink);
  padding: 7px 14px; border-radius: 999px;
  font-weight: 500; font-size: 14px;
  transition: all .15s ease;
  cursor: pointer; white-space: nowrap;
}
.btn:hover { background: rgba(255,255,255,0.1); transform: translateY(-1px); }
.btn-run {
  background: var(--moon); color: #1a1630; border-color: transparent; font-weight: 700;
  box-shadow: 0 0 0 0 rgba(255,212,121,.5), 0 6px 20px -6px rgba(255,212,121,.6);
}
.btn-run:hover { background: #ffe1a0; }

/* editor */
.ed-wrap { position: relative; flex: 1; min-height: 0; overflow: hidden; }
.ed-layer {
  position: absolute; inset: 0; margin: 0;
  padding: 14px 16px 40px 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13.5px; line-height: 1.65;
  white-space: pre; tab-size: 2; -moz-tab-size: 2;
  letter-spacing: 0;
  word-wrap: normal; overflow-wrap: normal;
}
pre.ed-layer { overflow: hidden; pointer-events: none; color: var(--id); }
textarea.ed-layer {
  background: transparent; color: transparent; caret-color: var(--moon);
  border: 0; outline: none; resize: none; overflow: auto;
  -webkit-text-fill-color: transparent;
}
textarea.ed-layer::selection { background: rgba(255, 212, 121, 0.25); }
.gutter {
  width: 46px; flex-shrink: 0; overflow: hidden;
  padding: 14px 8px 40px 0; text-align: right;
  font-family: 'JetBrains Mono', monospace; font-size: 13.5px; line-height: 1.65;
  color: #4b5388; user-select: none; border-right: 1px solid var(--line);
}
.gutter .err { color: var(--err); font-weight: 800; }
.gutter .err::before { content: '● '; font-size: 9px; vertical-align: middle; }

.tk-kw { color: var(--kw); font-weight: 600; }
.tk-str { color: var(--str); }
.tk-num { color: var(--num); }
.tk-comment { color: var(--com); font-style: italic; }
.tk-op { color: var(--op); }
.tk-punc { color: var(--punc); }
.tk-id { color: var(--id); }
.tk-bi { color: var(--bi); }
.tk-bad { color: #9aa0c8; text-decoration: wavy underline var(--err); text-underline-offset: 3px; }
.tk-hover { background: rgba(255, 212, 121, 0.28); border-radius: 3px; box-shadow: 0 0 0 2px rgba(255,212,121,.35); }

/* chips */
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--line); border-radius: 8px;
  padding: 3px 8px; font-size: 12px; cursor: pointer;
  background: rgba(255,255,255,0.03);
  font-family: 'JetBrains Mono', monospace;
  transition: transform .1s, background .1s;
  max-width: 100%;
}
.chip:hover { background: rgba(255, 212, 121, 0.12); transform: translateY(-1px); }
.chip .lbl { font-size: 9px; letter-spacing: .08em; opacity: .65; font-weight: 800; }
.chip .val { white-space: pre; overflow: hidden; text-overflow: ellipsis; max-width: 220px; }

.tab { padding: 8px 14px; border-radius: 10px; font-size: 14px; color: var(--muted); cursor: pointer; transition: all .15s; }
.tab.active { color: #1a1630; background: var(--moon); font-weight: 600; }
.tab:not(.active):hover { color: var(--ink); background: rgba(255,255,255,.06); }

.console-line { font-family: 'JetBrains Mono', monospace; font-size: 13px; white-space: pre-wrap; word-break: break-word; padding: 2px 0; }
.c-err { color: var(--err); }
.c-info { color: var(--muted); font-style: italic; }
.c-ok { color: var(--str); opacity: .8; font-size: 12px; }
.c-sleepy { color: var(--moon); }

.scroll-thin::-webkit-scrollbar, textarea::-webkit-scrollbar { width: 9px; height: 9px; }
.scroll-thin::-webkit-scrollbar-thumb, textarea::-webkit-scrollbar-thumb { background: rgba(170,180,255,.18); border-radius: 9px; }
.scroll-thin::-webkit-scrollbar-track, textarea::-webkit-scrollbar-track { background: transparent; }

.rise { animation: rise .6s cubic-bezier(.2,.8,.2,1) both; }
@keyframes rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%);
  background: #221f4d; border: 1px solid rgba(255,212,121,.4); color: var(--moon);
  padding: 9px 18px; border-radius: 999px; font-size: 14px; z-index: 60;
  animation: rise .3s both;
}
.menu { position: absolute; right: 0; top: calc(100% + 8px); z-index: 50; min-width: 230px; background: #17193d; border: 1px solid var(--line); border-radius: 14px; padding: 6px; box-shadow: 0 20px 50px -10px rgba(0,0,0,.6); }
.menu button { display: block; width: 100%; text-align: left; padding: 8px 12px; border-radius: 9px; font-size: 14px; color: var(--ink); }
.menu button:hover { background: rgba(255,212,121,.12); color: var(--moon); }

a { color: var(--moon); }

.mode-toggle { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; padding: 2px; background: rgba(255,255,255,.04); }
.mode-toggle button { padding: 5px 11px; border-radius: 999px; font-size: 13px; color: var(--muted); }
.mode-toggle button.on { background: #ff77a8; color: #1a1630; font-weight: 700; }
.mode-toggle button:first-child.on { background: var(--kw); }
.pico-screen { width: 100%; max-width: 384px; aspect-ratio: 1; image-rendering: pixelated; display: block; margin: 0 auto; background: #000; border-radius: 10px; border: 6px solid #2a2350; box-shadow: 0 10px 40px -10px rgba(255,119,168,.35); }
.pico-gfx { width: 256px; max-width: 100%; image-rendering: pixelated; border: 1px solid var(--line); border-radius: 6px; margin: 0 auto; display: block; }
.pad-btn { min-width: 46px; padding: 8px 10px; border-radius: 12px; border: 1px solid var(--line); background: rgba(255,255,255,.06); color: var(--ink); font-size: 14px; user-select: none; touch-action: none; }
.pad-btn:active { background: rgba(255,119,168,.3); }
details summary::marker { color: var(--muted); }