:root{color:#101820;background:#f5f7f2;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;--ink: #101820;--muted: #6b726b;--paper: #fffdf7;--line: #d9ded1;--green: #0f766e;--green-dark: #0b4e49;--amber: #f2b84b;--coral: #e8664f;--blue: #2f6fbd;--shadow: 0 18px 45px rgba(16, 24, 32, .12)}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;min-width:320px}button,input{font:inherit;letter-spacing:0}button{border:0;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.56}.app-shell{min-height:100dvh;display:flex;justify-content:center;background:linear-gradient(180deg,#ffffff9e,#fff0),#f5f7f2}.phone-stage{width:min(100%,460px);min-height:100dvh;display:flex;flex-direction:column;padding:max(14px,env(safe-area-inset-top)) 16px max(18px,env(safe-area-inset-bottom))}.topbar{height:44px;display:flex;align-items:center;justify-content:space-between;flex-shrink:0}.brand{display:inline-flex;align-items:center;gap:9px;font-size:18px;font-weight:850}.brand-mark{width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;color:#fff;background:var(--green);border-radius:8px}.connection-pill{height:30px;display:inline-flex;align-items:center;gap:6px;padding:0 10px;color:var(--green-dark);background:#e2f3ee;border:1px solid #b9ddd4;border-radius:999px;font-size:13px;font-weight:750;white-space:nowrap}.connection-pill.connecting{color:#76520c;background:#fff4d4;border-color:#f6d986}.connection-pill.offline{color:#8d2e22;background:#ffe7e1;border-color:#f3b2a7}.home-view,.room-view{flex:1;display:flex;flex-direction:column;gap:14px;padding-top:14px}.hero-lockup{padding:22px 0 10px}.hero-icon{width:58px;height:58px;display:flex;align-items:center;justify-content:center;margin-bottom:14px;color:var(--ink);background:var(--amber);border:2px solid rgba(16,24,32,.08);border-radius:12px;box-shadow:0 10px 22px #f2b84b57}h1{margin:0;font-size:clamp(36px,12vw,58px);line-height:1;font-weight:950;letter-spacing:0}.hero-lockup p{margin:12px 0 0;color:var(--muted);font-size:17px;font-weight:700}.form-stack,.join-band,.host-panel,.participants,.player-panel{padding:14px;background:#fffdf7eb;border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 26px #1018200f}.form-stack,.join-band,.host-panel{display:flex;flex-direction:column;gap:12px}.field{display:flex;flex-direction:column;gap:7px;color:var(--muted);font-size:13px;font-weight:800}.field input,.room-input-wrap,.nickname-input-wrap{width:100%;min-height:50px;color:var(--ink);background:#fff;border:1px solid #cfd6c7;border-radius:8px}.field input{padding:0 13px;outline:0;font-size:17px;font-weight:800}.field input:focus,.room-input-wrap:focus-within,.nickname-input-wrap:focus-within{border-color:var(--green);box-shadow:0 0 0 3px #0f766e24}.fixed-host-row{min-height:50px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 13px;color:var(--muted);background:#fff;border:1px solid #cfd6c7;border-radius:8px;font-size:14px;font-weight:850}.fixed-host-row strong{color:var(--ink);font-size:18px;font-weight:950}.room-input-wrap,.nickname-input-wrap{display:flex;align-items:center;gap:8px;padding:0 13px}.room-input-wrap input,.nickname-input-wrap input{min-height:48px;padding:0;border:0;box-shadow:none}.room-input-wrap input:focus,.nickname-input-wrap input:focus{box-shadow:none}.nickname-input-wrap{padding-right:6px}.nickname-input-wrap button{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;flex:0 0 40px;color:var(--green-dark);background:#e2f3ee;border-radius:8px}.countdown-row{min-height:48px;display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--muted);font-size:14px;font-weight:850}.countdown-row.compact{min-height:42px}.stepper{display:grid;grid-template-columns:40px 62px 40px;align-items:center;min-width:142px;height:40px;overflow:hidden;color:var(--ink);background:#fff;border:1px solid #cfd6c7;border-radius:8px}.stepper button{height:40px;color:var(--ink);background:transparent;font-size:22px;font-weight:850}.stepper strong{text-align:center;font-size:15px}.primary-action,.secondary-action,.ghost-action,.tool-button{min-height:52px;display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:8px;font-size:16px;font-weight:900;white-space:nowrap}.primary-action{color:#fff;background:var(--green);box-shadow:0 12px 22px #0f766e38}.secondary-action{color:var(--ink);background:#fff;border:1px solid #cfd6c7}.ghost-action{color:var(--green-dark);background:transparent;border:1px dashed #99bfb7}.tool-button{width:100%;min-height:44px;color:#fff;background:var(--blue)}.room-header{display:flex;align-items:center;justify-content:space-between;gap:12px}.room-number{height:42px;display:inline-flex;align-items:center;gap:6px;padding:0 12px;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:8px;font-size:20px;font-weight:950;box-shadow:0 8px 22px #1018200f}.link-button{height:42px;padding:0 12px;color:var(--muted);background:transparent;font-weight:850}.status-board{min-height:260px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;padding:24px 18px;color:#fff;background:#101820;border-radius:8px;box-shadow:var(--shadow)}.status-board.waiting{background:#314248}.status-board.countdown{background:#8e4f13}.status-board.open{background:#0b4e49}.status-board.result{background:#2f4d7c}.status-kicker{display:inline-flex;align-items:center;gap:7px;color:#ffffffc7;font-size:15px;font-weight:850}.countdown-number{width:152px;height:152px;display:flex;align-items:center;justify-content:center;color:#101820;background:#fff;border-radius:50%;font-size:86px;line-height:1;font-weight:950;box-shadow:inset 0 0 0 8px #f2b84ba6}.waiting-copy{font-size:34px;line-height:1.1;font-weight:950;text-align:center}.buzz-button{width:min(100%,280px);aspect-ratio:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;color:#101820;background:var(--amber);border:8px solid rgba(255,255,255,.86);border-radius:50%;font-size:clamp(42px,18vw,72px);line-height:1;font-weight:950;box-shadow:0 22px 34px #00000047;touch-action:manipulation}.buzz-button:active{transform:scale(.985)}.winner-box{width:100%;display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center}.winner-box span{color:#ffffffc2;font-size:15px;font-weight:850}.winner-box strong{max-width:100%;overflow-wrap:anywhere;color:#fff;font-size:clamp(42px,16vw,74px);line-height:1.06;font-weight:950}.winner-box.mine strong{color:var(--amber)}.qr-row{display:grid;grid-template-columns:136px 1fr;gap:12px;align-items:center}.qr-button{min-height:52px;display:inline-flex;align-items:center;justify-content:center;gap:8px;color:var(--green-dark);background:#e2f3ee;border:1px solid #cfd6c7;border-radius:8px;font-size:15px;font-weight:900;white-space:nowrap}.qr-dialog-backdrop{position:fixed;inset:0;z-index:60;display:flex;align-items:center;justify-content:center;padding:18px;background:#10182094}.qr-dialog{width:min(100%,380px);display:flex;flex-direction:column;align-items:center;gap:14px;padding:16px;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow)}.qr-dialog-header{width:100%;min-height:40px;display:flex;align-items:center;justify-content:space-between;gap:12px}.qr-dialog-header strong{font-size:18px;font-weight:950}.qr-dialog-close{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;flex:0 0 40px;color:var(--ink);background:#fff;border:1px solid #cfd6c7;border-radius:8px}.qr-dialog-code{width:min(100%,312px);aspect-ratio:1;display:flex;align-items:center;justify-content:center;padding:12px;background:#fff;border:1px solid #cfd6c7;border-radius:8px}.qr-dialog-code img{display:block;width:100%;height:100%}.qr-dialog-room{font-size:28px;line-height:1;font-weight:950}.qr-dialog-url{max-width:100%;color:var(--muted);font-size:12px;line-height:1.35;overflow-wrap:anywhere;text-align:center}.share-stack{min-width:0;display:flex;flex-direction:column;gap:8px}.share-url{min-width:0;color:var(--muted);font-size:12px;line-height:1.35;overflow-wrap:anywhere}.host-actions{display:flex;flex-direction:column;gap:12px}.action-grid{display:grid;grid-template-columns:1fr 112px;gap:10px}.player-panel{display:flex;align-items:center;justify-content:space-between;gap:12px}.player-panel span{color:var(--muted);font-size:14px;font-weight:850}.player-panel strong{min-width:0;overflow-wrap:anywhere;font-size:18px;font-weight:950}.section-title{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:14px;font-weight:900}.participant-list{display:flex;flex-direction:column;gap:8px;margin-top:12px}.participant-item{min-height:54px;display:grid;grid-template-columns:38px 1fr 34px;gap:10px;align-items:center;padding:8px;background:#fff;border:1px solid #edf0e8;border-radius:8px}.avatar{width:38px;height:38px;display:flex;align-items:center;justify-content:center;color:#fff;background:var(--coral);border-radius:8px;font-size:17px;font-weight:950}.participant-meta{min-width:0;display:flex;flex-direction:column;gap:2px}.participant-meta strong{min-width:0;overflow-wrap:anywhere;font-size:15px}.participant-meta span{color:var(--muted);font-size:12px;font-weight:750}.host-badge{width:28px;height:28px;display:flex;align-items:center;justify-content:center;justify-self:end;color:#8e5f06;background:#fff1c4;border-radius:8px}.notice{padding:12px 13px;color:#702c18;background:#ffeadb;border:1px solid #f1c0a4;border-radius:8px;font-size:14px;font-weight:800}@media(max-width:360px){.phone-stage{padding-left:12px;padding-right:12px}.qr-row,.action-grid{grid-template-columns:1fr}.status-board{min-height:238px}.countdown-number{width:132px;height:132px;font-size:74px}}