:root {
  --hud: #4dff9e; --hud-dim: #2fae6e; --warn: #ff5a52; --amber: #ffbf47; --ink: #eaf2f0;
  --panel: rgba(8, 20, 28, 0.9); --line: rgba(120, 200, 170, 0.25);
  --sat: env(safe-area-inset-top, 0px); --sab: env(safe-area-inset-bottom, 0px); --sal: env(safe-area-inset-left, 0px); --sar: env(safe-area-inset-right, 0px);
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; margin: 0; padding: 0; }
html, body { height: 100%; overflow: hidden; background: #0a1722; color: var(--ink);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif; overscroll-behavior: none;
  -webkit-user-select: none; user-select: none; touch-action: none; }
#wrap { position: fixed; inset: 0; }
#game { display: block; width: 100%; height: 100%; touch-action: none; }
#hud { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hidden { display: none !important; }

#topbar { position: absolute; top: max(8px, var(--sat)); right: max(8px, var(--sar)); display: flex; gap: 6px; }
.iconbtn { width: 40px; height: 40px; border-radius: 12px; border: 1px solid var(--line); background: rgba(6,18,24,0.6); color: var(--ink); font-size: 18px; cursor: pointer; }

.overlay { position: absolute; inset: 0; display: grid; place-items: center; padding: max(10px, var(--sat)) max(10px, var(--sar)) max(10px, var(--sab)) max(10px, var(--sal));
  overflow-y: auto; background: radial-gradient(120% 90% at 50% 0%, rgba(10,30,42,0.35), rgba(6,14,20,0.72)); }
.panel { width: min(520px, 96vw); max-height: 96vh; overflow-y: auto; margin: auto; background: var(--panel); border: 1px solid var(--line);
  border-radius: 18px; padding: 18px 16px; text-align: center; backdrop-filter: blur(8px); box-shadow: 0 20px 60px rgba(0,0,0,0.5); }
.panel.menu { width: min(640px, 96vw); }
.logo { font-size: clamp(30px, 8vw, 50px); font-weight: 900; letter-spacing: 0.14em; color: var(--hud); text-shadow: 0 0 28px rgba(77,255,158,0.45); }
.title { font-size: clamp(20px, 5vw, 28px); font-weight: 800; color: var(--hud); }
.sub { margin: 6px 0 10px; font-size: 14px; color: #c7d6d2; }
.career { font-size: 12px; color: var(--hud-dim); margin-bottom: 10px; }
.foot { margin-top: 12px; font-size: 12px; } .foot a { color: var(--hud-dim); text-decoration: none; }

.levels { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 8px; margin-bottom: 12px; text-align: left; }
.lv { position: relative; font: inherit; border: 1px solid var(--line); border-radius: 12px; background: rgba(255,255,255,0.04); color: var(--ink);
  padding: 8px 10px 8px 34px; cursor: pointer; text-align: left; display: flex; flex-direction: column; gap: 2px; transition: transform 0.08s; min-height: 62px; }
.lv:active { transform: scale(0.97); }
.lv.locked { opacity: 0.45; cursor: default; }
.lv.done { border-color: rgba(77,255,158,0.5); }
.lv-n { position: absolute; left: 10px; top: 8px; font-weight: 900; color: var(--hud); font-size: 15px; }
.lv-ico { position: absolute; right: 8px; top: 6px; font-size: 14px; }
.lv-name { font-weight: 800; font-size: 13px; }
.lv-stars { font-size: 12px; color: rgba(255,255,255,0.25); letter-spacing: 1px; } .lv-stars.on { color: var(--amber); }
.lv-best { font-size: 11px; color: #9fb5ae; }
.diff { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 0 0 12px; }
.dbtn { font: inherit; color: var(--ink); background: rgba(255,255,255,0.04); border: 1px solid var(--line); border-radius: 12px; padding: 8px 10px; cursor: pointer; display: flex; flex-direction: column; gap: 2px; text-align: center; }
.dbtn b { font-size: 14px; } .dbtn small { font-size: 11px; color: #9fb5ae; }
.dbtn.on { border-color: rgba(77,255,158,0.8); background: rgba(77,255,158,0.12); box-shadow: 0 0 0 1px rgba(77,255,158,0.35) inset; }
#dHard.on { border-color: rgba(255,150,70,0.9); background: rgba(255,130,50,0.14); box-shadow: 0 0 0 1px rgba(255,150,70,0.4) inset; }
.lv-hard { position: absolute; right: 8px; bottom: 6px; font-size: 11px; }
.chip.hot { border-color: rgba(255,150,70,0.8); color: #ffd2a8; }
.lv-type { font-size: 9px; font-weight: 800; letter-spacing: 0.8px; color: #7fe0ff; opacity: 0.85; }
.career .rank { color: var(--amber); letter-spacing: 0.5px; }
.rankup { margin: 8px 0 2px; padding: 8px 10px; border: 1px solid rgba(255,191,71,0.6); border-radius: 10px; background: rgba(255,191,71,0.12); color: #ffe4a8; font-weight: 700; font-size: 13px; }

.row { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.btn { font: inherit; font-weight: 700; border: 1px solid var(--line); border-radius: 14px; padding: 13px 20px; margin: 4px 2px; background: rgba(255,255,255,0.06); color: var(--ink); cursor: pointer; transition: transform 0.08s ease; }
.btn:active { transform: scale(0.96); }
.btn.primary { display: block; width: 100%; background: linear-gradient(120deg, #1f8f5c, #2bbf7a); border-color: transparent; color: #07150e; font-size: 17px; box-shadow: 0 8px 24px rgba(43,191,122,0.4); margin: 10px 0 6px; }

.chips { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin: 8px 0; }
.chip { font-size: 12px; padding: 4px 9px; border-radius: 999px; border: 1px solid var(--line); background: rgba(77,255,158,0.08); color: #d6e6e0; }
.tips { text-align: left; margin: 10px 0; padding-left: 18px; font-size: 13px; color: #c7d6d2; line-height: 1.45; } .tips li { margin-bottom: 5px; }
.howto { text-align: left; margin-bottom: 10px; }
.ht { font-size: 12.5px; color: #c7d6d2; line-height: 1.5; background: rgba(255,255,255,0.03); border: 1px solid var(--line); border-radius: 10px; padding: 8px 11px; }
.ht b { color: var(--hud); font-weight: 700; }
.kbd { display: inline-block; background: rgba(77,255,158,0.12); border: 1px solid var(--line); border-radius: 6px; padding: 1px 6px; font-size: 12px; color: var(--ink); }
.best { margin: 6px 0; color: var(--amber); font-size: 13px; min-height: 1.1em; }

.form { display: flex; flex-direction: column; gap: 8px; text-align: left; margin: 8px 0 12px; }
.form label { display: grid; grid-template-columns: 1fr 1.4fr auto; align-items: center; gap: 8px; font-size: 13px; color: #c7d6d2; }
.form label.tog { grid-template-columns: 1fr auto; }
.form select, .form input[type=range] { width: 100%; font: inherit; color: var(--ink); background: rgba(255,255,255,0.06); border: 1px solid var(--line); border-radius: 8px; padding: 6px 8px; }
.form input[type=range] { padding: 0; accent-color: var(--hud); }
.form input[type=checkbox] { width: 20px; height: 20px; accent-color: var(--hud); }
.form span { color: var(--hud); font-variant-numeric: tabular-nums; min-width: 44px; text-align: right; }

.grade { font-size: clamp(26px, 7vw, 40px); font-weight: 900; letter-spacing: 0.04em; }
.grade.ok { color: var(--hud); text-shadow: 0 0 26px rgba(77,255,158,0.5); }
.grade.bad { color: var(--warn); text-shadow: 0 0 22px rgba(255,90,82,0.45); }
.grade.fair { color: var(--amber); }
.code { font-size: 12px; color: var(--hud-dim); letter-spacing: 0.08em; margin-top: 2px; font-variant-numeric: tabular-nums; }
.stars { font-size: 34px; letter-spacing: 6px; margin: 4px 0; }
.stars .st { color: rgba(255,255,255,0.18); display: inline-block; } .stars .st.on { color: var(--amber); animation: pop 0.5s ease both; text-shadow: 0 0 16px rgba(255,191,71,0.6); }
@keyframes pop { 0% { transform: scale(0.2); opacity: 0; } 70% { transform: scale(1.3); opacity: 1; } 100% { transform: scale(1); } }
.r-text { margin: 6px 0 12px; color: #c7d6d2; font-size: 15px; line-height: 1.45; }
.r-stats { display: flex; flex-direction: column; gap: 4px; margin-bottom: 10px; text-align: left; }
.r-stats .rs { display: flex; justify-content: space-between; font-size: 13.5px; border-bottom: 1px dashed var(--line); padding: 4px 2px; }
.r-stats .rs b { color: var(--hud); font-variant-numeric: tabular-nums; }
.points { font-weight: 800; color: var(--amber); margin-bottom: 6px; }

#rotate { display: none; }
@media (orientation: portrait) and (pointer: coarse) {
  body:not(.allow-portrait) #rotate { position: fixed; inset: 0; z-index: 60; display: grid; place-items: center; background: #0a1722; color: var(--hud); text-align: center; padding: 24px; }
  #rotate .ri { font-size: 20px; font-weight: 800; line-height: 1.6; text-shadow: 0 0 12px rgba(77,255,158,0.4); }
  #rotate .ri .big { font-size: 54px; display: block; margin-bottom: 8px; animation: rot 2.4s ease-in-out infinite; }
  #rotate .ri small { display: block; margin: 10px 0 16px; font-size: 14px; font-weight: 500; color: var(--ink); }
}
@keyframes rot { 0%,55% { transform: rotate(0deg);} 80%,100% { transform: rotate(90deg);} }
@media (max-height: 460px) { .diff { margin-bottom: 8px; } .dbtn { padding: 5px 8px; } .dbtn small { font-size: 10px; } .panel { padding: 12px 12px; } .logo { font-size: 26px; } .sub { margin: 2px 0 6px; font-size: 13px; } .btn { padding: 10px 14px; } .btn.primary { margin: 6px 0 4px; font-size: 15px; } .levels { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 6px; } .lv { min-height: 52px; padding: 5px 8px 5px 30px; } .tips { margin: 6px 0; } .howto { display: none; } }