/* Light, friendly theme */
:root{
  --bg:#f7fafc;
  --card:#ffffff;
  --muted:#5f6b7a;
  --text:#1b2a41;
  --accent:#2ecc71;
  --accent-2:#4c8bf5;
  --shadow:0 8px 24px rgba(0,0,0,.08);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{margin:0;font-family:Inter,system-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  color:var(--text);background:linear-gradient(180deg,#f3f7fb 0%, #eef2f8 100%);
  display:flex;flex-direction:column;align-items:center}
.app-header{width:100%;max-width:900px;padding:16px;display:flex;flex-direction:column;gap:6px;align-items:flex-start}
.app-header h1{margin:0;font-weight:800}
.top-player{padding:8px 12px;background:var(--card);border-radius:12px;box-shadow:var(--shadow);font-size:.95rem;color:#244866}
.wrapper{width:100%;max-width:900px;padding:8px 16px 24px;display:flex;flex-direction:column;gap:12px}
.hud{display:flex;gap:10px;flex-wrap:wrap}
.hud-item{background:var(--card);padding:10px 14px;border-radius:12px;box-shadow:var(--shadow);display:flex;gap:8px;align-items:center}
.hud-item .label{color:var(--muted);text-transform:uppercase;font-size:.75rem;letter-spacing:.2em}
.board-container{position:relative;display:flex;justify-content:center;align-items:center}
.board{display:grid;grid-template-columns:repeat(8,1fr);grid-template-rows:repeat(8,1fr);gap:6px;background:#e9eef6;
  padding:6px;border-radius:16px;box-shadow:var(--shadow);width:min(92vw,520px);aspect-ratio:1/1}
.tile{border-radius:12px;display:flex;justify-content:center;align-items:center;user-select:none;touch-action:none;font-weight:700;font-size:1.1rem;
  transition:transform .12s ease, box-shadow .12s ease, opacity .2s ease;box-shadow:inset 0 0 10px rgba(0,0,0,.06), 0 6px 14px rgba(0,0,0,.06); border:1px solid rgba(0,0,0,.04)}
.tile.selected{outline:3px solid var(--accent-2);transform:scale(1.04)}
.tile.pop{animation:pop .25s ease}
@keyframes pop{0%{transform:scale(1)}50%{transform:scale(1.2)}100%{transform:scale(1)}}
.color-0{background:#ff6b6b}.color-1{background:#51cf66}.color-2{background:#339af0}.color-3{background:#fcc419}.color-4{background:#845ef7}.color-5{background:#ff922b}
.overlay{position:absolute;inset:0;background:rgba(0,0,0,.65);display:flex;justify-content:center;align-items:center;border-radius:16px;color:#fff;font-size:1.4rem;text-align:center;padding:16px}
.hidden{display:none !important}
.controls{display:flex;gap:10px;flex-wrap:wrap}
.btn{background:var(--accent);border:none;color:#fff;padding:10px 16px;border-radius:12px;font-weight:700;cursor:pointer;box-shadow:var(--shadow)}
.btn:hover{filter:brightness(1.05)}.btn:active{transform:translateY(1px)}
.btn-secondary{background:#edf1f7;color:#1b2a41}
.btn-right{margin-left:auto}
.btn-tab{background:#edf1f7;color:#1b2a41}.btn-tab.active{background:var(--accent-2);color:#fff}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.6);display:flex;justify-content:center;align-items:center;padding:16px;z-index:50}
.modal-content{background:var(--card);border-radius:16px;box-shadow:var(--shadow);padding:16px;max-width:520px;width:100%}
.modal-large{max-width:780px}.modal-actions{display:flex;gap:8px;margin-top:12px}
.teams{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:8px}
input[type="text"]{width:100%;padding:10px;border-radius:10px;border:1px solid #d7dce5;background:#fff;color:#1b2a41}
fieldset{border:1px solid #d7dce5;border-radius:12px;padding:10px}
legend{padding:0 6px;color:#4b5568}
.table-wrap{overflow:auto;max-height:55vh;border-radius:12px;border:1px solid #e4e8f0}
table{width:100%;border-collapse:collapse}th,td{padding:10px;border-bottom:1px solid #e4e8f0;text-align:left}th{position:sticky;top:0;background:#f1f5fb;color:#304357}
.app-footer{margin:24px 0 32px;color:#68778c}
@media (max-width:480px){.teams{grid-template-columns:1fr}}
/* How-to */
.howto{margin-top:18px}
.howto h2{margin:8px 0 10px 0; font-size:1.25rem}
.howto-grid{display:grid; grid-template-columns:repeat(2, minmax(0,1fr)); gap:12px}
.howto .card{background:var(--card); border-radius:14px; box-shadow:var(--shadow); padding:12px}
.howto h3{margin:0 0 6px 0; font-size:1.05rem}
.howto ul{margin:0; padding-left:1.1rem}
@media (max-width:600px){ .howto-grid{grid-template-columns:1fr} }
/* Sound toggle look */
.btn[aria-pressed='false']{opacity:.8;filter:grayscale(.2)}