/* RATB+ theme (v3 with centered overlay banner) */
:root { --bg0:#0b1020; --bg1:#0d1230; --panel:#121933; --text:#eaf0ff; --muted:#aab7ff; --accent:#6ea8fe; --accent2:#9ad0ff; --radius:18px; --shadow:0 10px 30px rgba(0,0,0,.35); }
*{box-sizing:border-box} html,body{margin:0;padding:0;color:var(--text);background:radial-gradient(1200px 600px at 50% -10%, rgba(110,168,254,.15), transparent), linear-gradient(180deg, var(--bg0), var(--bg1));font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
body.no-scroll{overflow:hidden}
.container{max-width:1080px;margin:0 auto;padding:0 20px}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-weight:800;letter-spacing:.3px;color:var(--text);text-decoration:none}
.nav-actions,.nav-links{display:flex;gap:12px;align-items:center}
.nav a.link{color:var(--muted);text-decoration:none;border:1px solid #2a3566;padding:6px 10px;border-radius:999px;font-size:14px}
.nav a.link:hover{background:rgba(255,255,255,.06)}
.button{display:inline-block;padding:12px 16px;border-radius:var(--radius);text-decoration:none;border:1px solid transparent;background:transparent;color:var(--text);cursor:pointer}
.button.primary{background:linear-gradient(90deg,var(--accent),var(--accent2));color:#0a0f20;font-weight:700;border:none}
.button.pill{border-color:#2a3566;color:var(--muted);border-radius:999px;padding:8px 12px;font-size:14px}
.hero{padding:56px 0 24px}
.hero-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:24px;align-items:center}
.hero-copy h1{font-size:clamp(26px,3.6vw,42px);margin:0 0 12px;display:flex;flex-wrap:wrap;gap:8px;align-items:baseline}
.logo{font-weight:800;letter-spacing:.6px;background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.acrostiche{color:var(--muted)}
.lead{margin:0 0 16px;color:var(--muted)}
.acrostic-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:16px 0 8px}
.acro{display:flex;gap:12px;align-items:center;background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.08);border-radius:var(--radius);padding:12px 14px}
.letter{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;font-weight:800;color:#0a0f20;background:linear-gradient(90deg,var(--accent),var(--accent2))}
.word{font-weight:700}.desc{font-size:13px;color:var(--muted)}.words{display:flex;flex-direction:column;gap:2px}
.controls{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0 8px}
.chip{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.12);padding:8px 12px;border-radius:999px;color:var(--muted);cursor:pointer}
.chip input{accent-color:#9ad0ff}
.card.big{background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.08);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);min-height:220px;display:flex;align-items:center;justify-content:center;text-align:center}
.text{font-size:clamp(20px,2.6vw,34px);line-height:1.25}
.section{padding:48px 0}.section.alt{background:radial-gradient(1200px 600px at 50% 0%, rgba(255,255,255,.04), transparent)}
.footer{border-top:1px solid rgba(255,255,255,0.08);padding:24px 0;margin-top:32px;color:var(--muted);font-size:14px}
.confetti{position:fixed;top:-10px;background:linear-gradient(90deg,var(--accent),var(--accent2));border-radius:2px;pointer-events:none;animation:drop 1.2s ease-out forwards}
@keyframes drop{0%{transform:translateY(0) rotate(0deg);opacity:1}100%{transform:translateY(110vh) rotate(340deg);opacity:0}}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(10px);background:rgba(15,22,48,.9);border:1px solid rgba(255,255,255,.12);color:var(--text);padding:10px 14px;border-radius:999px;opacity:0;transition:opacity .2s ease,transform .2s ease;box-shadow:var(--shadow);font-size:14px}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.game-wrap{padding:32px 0 64px}
.board{position:relative;height:460px;border-radius:var(--radius);background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.08);overflow:hidden;box-shadow:var(--shadow)}
.hud{display:flex;gap:12px;align-items:center;margin-bottom:12px;flex-wrap:wrap}
.badge{padding:6px 10px;border:1px solid rgba(255,255,255,0.12);border-radius:999px;color:var(--muted)}
.smile{position:absolute;font-size:28px;user-select:none;cursor:pointer}
.summary{margin-top:14px;color:var(--muted)}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr}.acrostic-cards{grid-template-columns:1fr 1fr}}

/* Centered overlay banner (always visible) */
#ratb-overlay{position:fixed;inset:0;background:rgba(1,4,18,.6);backdrop-filter:saturate(120%) blur(2px);display:none;align-items:center;justify-content:center;z-index:2147483647}
#ratb-dialog{max-width:560px;margin:24px;padding:18px 18px;border-radius:16px;background:linear-gradient(180deg,#121933,#0e1530);border:1px solid rgba(255,255,255,.08);box-shadow:0 20px 60px rgba(0,0,0,.5)}
#ratb-dialog p{margin:0 0 12px;color:var(--muted);font-size:15px}
#ratb-dialog .title{font-weight:800;color:var(--text);margin:0 0 8px;font-size:18px}
#ratb-dialog .ok{display:inline-block;margin-top:6px;padding:10px 14px;border-radius:999px;border:none;background:linear-gradient(90deg,var(--accent),var(--accent2));color:#071026;font-weight:700;cursor:pointer}