.page-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:32px 0 26px}.game-title{display:flex;align-items:center;gap:14px}.eyebrow{font-size:10px;font-weight:800;letter-spacing:2px;color:#567095}h1{font-size:32px;letter-spacing:-1.3px;margin:4px 0 0}.back-link{font-size:14px;color:#53627b;text-decoration:none}.game{display:grid;grid-template-columns:320px minmax(0,1fr);gap:28px;margin-bottom:40px}.controls{border:1px solid #e0e6ef;border-radius:18px;padding:30px 25px;background:#fafbfd}h2{font-size:29px;line-height:1.45;letter-spacing:-1.3px;margin:12px 0}.intro{font-size:14px;line-height:1.8;color:#637189;margin:0 0 25px}.mode{display:flex;padding:4px;background:#e9eef5;border-radius:10px;gap:4px}.mode button{flex:1;border:0;background:transparent;border-radius:7px;padding:11px 3px;font-size:13px;color:#57667e}.mode button[aria-pressed=true]{background:white;color:#294b80;font-weight:800;box-shadow:0 2px 6px #20395512}.players{display:grid;gap:10px;margin:22px 0}.player{display:flex;gap:11px;align-items:center;padding:13px;border:1px solid #e0e6ef;border-radius:11px;background:white}.player.active{border-color:#6688b8;box-shadow:0 0 0 2px #456ba50c}.player span{font-size:14px;font-weight:700}.player small{font-size:11px;color:#6a788d;margin-left:auto}.disc{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font-size:12px;font-style:normal}.red{background:#e77865;color:#773329}.yellow{background:#efbd50;color:#715319}.count{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #e0e6ef;padding:18px 0;color:#637189;font-size:13px}.count strong{font-size:23px;color:#294b80}.count small{font-weight:400;font-size:13px;color:#788397}.restart{width:100%;padding:13px;border:0;border-radius:9px;background:#294b80;color:white;font-weight:700;font-size:14px}.restart:hover{background:#1c3b6a}.note{text-align:center;font-size:11px;line-height:1.8;color:#788397;margin:16px 0 0}.play-area{border-radius:18px;background:#f4f7fc;padding:24px 30px;display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:0}.status-wrap{text-align:center;min-height:75px}.status-label{font-size:9px;font-weight:800;letter-spacing:2px;color:#6e84a5}#status{font-size:17px;font-weight:700;margin:9px 0 18px;word-break:keep-all}.board-frame{width:100%;max-width:520px;padding:12px;background:linear-gradient(145deg,#547bb3,#294b80);border-radius:15px;box-shadow:0 8px 0 #203f70,0 17px 27px #294b8022}.board{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:7px}.column{display:flex;flex-direction:column;gap:7px;padding:0;background:transparent;border:0;border-radius:30px;min-width:0;touch-action:manipulation}.column:not(:disabled):hover{background:#ffffff25}.column:focus-visible{outline:3px solid white;outline-offset:3px}.column:disabled{cursor:default}.slot{display:grid;place-items:center;width:100%;aspect-ratio:1;border-radius:50%;background:#e7edf7;box-shadow:inset 0 3px 5px #142e6030;color:transparent;font-size:clamp(12px,2vw,23px)}.slot.red{background:radial-gradient(circle at 35% 28%,#f59983,#e77865 65%);color:#773329;box-shadow:inset 0 -4px 0 #b54e4438}.slot.yellow{background:radial-gradient(circle at 35% 28%,#ffda7e,#efbd50 65%);color:#715319;box-shadow:inset 0 -4px 0 #b1812938}.slot.latest{outline:2px solid #ffffffb0;outline-offset:-5px}.slot.winner{outline:4px solid #fff;outline-offset:-5px;box-shadow:0 0 10px #fff7}.board-help{font-size:12px;color:#6d7f99;margin:24px 0 0;text-align:center}.guide{grid-column:1/-1;border:1px solid #e0e6ef;border-radius:13px;padding:18px 23px}.guide summary{font-size:14px;font-weight:700;cursor:pointer}.tips{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.tips p{font-size:13px;line-height:1.8;color:#637189;margin:18px 0 0}.tips b{display:block;color:#304768;margin-bottom:5px}dialog{border:1px solid #dbe2ee;border-radius:16px;padding:26px;max-width:calc(100vw - 36px)}dialog::backdrop{background:#101b3070}dialog h2{font-size:22px}dialog p{font-size:14px;color:#637189}.dialog-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:25px}.dialog-actions button{border:1px solid #dbe2ee;background:white;padding:10px 14px;border-radius:8px}.dialog-actions button[value=confirm]{background:#294b80;color:white;border-color:#294b80}@media(prefers-reduced-motion:no-preference){.slot.latest{animation:arrive .2s ease-out}@keyframes arrive{from{transform:translateY(-12px);opacity:.5}to{transform:translateY(0);opacity:1}}}@media(max-width:850px){.game{grid-template-columns:260px minmax(0,1fr);gap:18px}.controls{padding:23px 18px}.play-area{padding:22px 15px}.board{gap:5px}.column{gap:5px}.board-frame{padding:9px}h2{font-size:25px}}@media(max-width:650px){.page-heading{margin:25px 0 20px}h1{font-size:27px}.back-link{font-size:12px}.game{grid-template-columns:1fr;gap:16px}.controls{padding:18px}.controls>.eyebrow,.controls>h2,.intro,.note{display:none}.players{grid-template-columns:1fr 1fr;margin:14px 0}.player{padding:10px;gap:7px}.player small{display:none}.count{display:inline-flex;width:55%;border:0;padding:0}.restart{width:42%;margin-left:1%;padding:11px}.play-area{padding:20px 13px}.status-wrap{min-height:72px}#status{font-size:15px}.board-frame{max-width:440px}.tips{grid-template-columns:1fr;gap:0}.guide{padding:17px}.slot{font-size:18px}.board-help{font-size:11px}.disc{width:25px;height:25px}}