*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%;text-size-adjust:100%;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{min-height:100vh;line-height:var(--leading-normal)}img,picture,video,canvas,svg{display:block;max-width:100%}input,button,textarea,select{font:inherit;color:inherit}button{cursor:pointer;border:none;background:none}a{color:inherit;text-decoration:none}ul,ol{list-style:none}h1,h2,h3,h4,h5,h6{overflow-wrap:break-word;font-weight:var(--font-semibold)}p{overflow-wrap:break-word}:focus{outline:none}:focus-visible{outline:2px solid var(--border-focus);outline-offset:2px}input[type=number]::-webkit-inner-spin-button,input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}input[type=number]{-moz-appearance:textfield}:root{--color-primary-50: #eff6ff;--color-primary-100: #dbeafe;--color-primary-200: #bfdbfe;--color-primary-300: #93c5fd;--color-primary-400: 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var(--color-neutral-800);--text-primary: var(--color-neutral-50);--text-secondary: var(--color-neutral-300);--text-muted: var(--color-neutral-500);--text-accent: var(--color-primary-400);--text-inverse: var(--color-neutral-950);--border-default: var(--color-neutral-700);--border-subtle: var(--color-neutral-800);--border-focus: var(--color-primary-500);--border-error: var(--color-error-500);--btn-primary-bg: var(--color-primary-600);--btn-primary-hover: var(--color-primary-700);--btn-primary-active: var(--color-primary-800);--btn-primary-text: #ffffff;--btn-secondary-bg: var(--color-neutral-700);--btn-secondary-hover: var(--color-neutral-600);--btn-secondary-text: var(--color-neutral-100);--btn-ghost-hover: var(--color-neutral-800);--btn-danger-bg: var(--color-error-600);--btn-danger-hover: var(--color-error-500);--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 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ease;--z-dropdown: 100;--z-modal: 200;--z-toast: 300;--z-tooltip: 400;--content-max-width: 1200px;--sidebar-width: 320px;--header-height: 64px}body{font-family:var(--font-sans);font-size:var(--text-base);color:var(--text-primary);background-color:var(--bg-body);overflow-x:hidden}#app{min-height:100vh;display:flex;flex-direction:column}#toast-container{position:fixed;top:var(--space-4);right:var(--space-4);z-index:var(--z-toast);display:flex;flex-direction:column;gap:var(--space-2);pointer-events:none}#toast-container>*{pointer-events:auto}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--color-neutral-600);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-neutral-500)}*{scrollbar-width:thin;scrollbar-color:var(--color-neutral-600) var(--bg-primary)}::selection{background-color:var(--color-primary-600);color:var(--text-primary)}@media(max-width:640px){html{font-size:14px}}@media(min-width:2560px){html{font-size:18px}}@media(min-width:3840px){html{font-size:22px}}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes slide-up{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes slide-down{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.lobby{display:flex;flex-direction:column;height:100vh;overflow:hidden}.lobby__header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-2) var(--space-4);background-color:var(--bg-secondary);border-bottom:1px solid var(--border-default);min-height:var(--header-height);flex-shrink:0;gap:var(--space-2)}.lobby__logo{display:flex;align-items:center;gap:var(--space-2);font-size:var(--text-lg);font-weight:var(--font-bold);color:var(--text-primary);flex-shrink:0}.lobby__logo svg{color:var(--color-primary-400)}.lobby__header-actions{display:flex;align-items:center;gap:var(--space-2);flex-shrink:0}.lobby__user-info{display:flex;align-items:center;gap:var(--space-2);font-size:var(--text-sm);color:var(--text-secondary)}.lobby__body{display:flex;flex:1;overflow:hidden}.lobby__chat{flex:1.2;min-width:220px;max-width:520px;border-right:1px solid var(--border-default);display:flex;flex-direction:column;background-color:var(--bg-primary)}.lobby__chat-header{padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--border-subtle);font-size:var(--text-sm);font-weight:var(--font-semibold);color:var(--text-secondary)}.lobby__chat-messages{flex:1;overflow-y:auto;padding:var(--space-2) var(--space-4);display:flex;flex-direction:column;gap:var(--space-1)}.lobby__chat-msg{font-size:var(--text-sm);line-height:var(--leading-normal);animation:fade-in var(--transition-fast) ease}.lobby__chat-msg-user{font-weight:var(--font-semibold);color:var(--text-accent)}.lobby__chat-msg-text{color:var(--text-secondary)}.lobby__chat-msg-time{font-size:var(--text-xs);color:var(--text-muted);margin-left:var(--space-2)}.lobby__chat-input{display:flex;gap:var(--space-2);padding:var(--space-3) var(--space-4);border-top:1px solid var(--border-subtle)}.lobby__chat-input input{flex:1;min-width:0;padding:var(--space-2) var(--space-3);background-color:var(--bg-input);border:1px solid var(--border-default);border-radius:var(--radius-md);color:var(--text-primary);font-size:var(--text-sm);min-height:36px}.lobby__chat-input input:focus{border-color:var(--border-focus);box-shadow:var(--focus-ring)}.lobby__chat-input button{padding:var(--space-2) var(--space-3);background-color:var(--btn-primary-bg);color:var(--btn-primary-text);border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:var(--font-medium);transition:background-color var(--transition-fast);white-space:nowrap;flex-shrink:0}.lobby__chat-input button:hover{background-color:var(--btn-primary-hover)}.lobby__rooms{flex:2;min-width:300px;display:flex;flex-direction:column;overflow:hidden;background-color:var(--bg-body)}.lobby__rooms-header{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);padding:var(--space-4) var(--space-6);flex-shrink:0}.lobby__rooms-search{flex:1;max-width:300px;padding:var(--space-2) var(--space-3);background-color:var(--bg-input);border:1px solid var(--border-default);border-radius:var(--radius-md);color:var(--text-primary);font-size:var(--text-sm)}.lobby__rooms-search:focus{border-color:var(--border-focus);box-shadow:var(--focus-ring)}.lobby__rooms-list{flex:1;overflow-y:auto;padding:0 var(--space-6) var(--space-4);display:flex;flex-direction:column;gap:var(--space-3)}.lobby__rooms-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;color:var(--text-muted);font-size:var(--text-sm);gap:var(--space-2);padding:var(--space-8)}.room-card{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4);background-color:var(--bg-card);border:1px solid var(--border-default);border-radius:var(--radius-lg);transition:border-color var(--transition-fast),box-shadow var(--transition-fast);animation:slide-up var(--transition-normal) ease}.room-card:hover{border-color:var(--color-primary-600);box-shadow:var(--shadow-glow)}.room-card__info{display:flex;flex-direction:column;gap:var(--space-1)}.room-card__name{font-size:var(--text-base);font-weight:var(--font-semibold);color:var(--text-primary)}.room-card__meta{display:flex;align-items:center;gap:var(--space-3);font-size:var(--text-xs);color:var(--text-muted)}.room-card__status{padding:2px var(--space-2);border-radius:var(--radius-full);font-size:var(--text-xs);font-weight:var(--font-medium)}.room-card__status--waiting{background-color:#22c55e26;color:var(--color-success-400)}.room-card__status--full{background-color:#f59e0b26;color:var(--color-warning-400)}.room-card__status--in-game{background-color:#ef444426;color:var(--color-error-400)}.room-card__actions{display:flex;align-items:center;gap:var(--space-2)}.room-card__join-btn{padding:var(--space-2) var(--space-4);background-color:var(--btn-primary-bg);color:var(--btn-primary-text);border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:var(--font-medium);transition:background-color var(--transition-fast)}.room-card__join-btn:hover{background-color:var(--btn-primary-hover)}.room-card__join-btn:disabled{opacity:.5;cursor:not-allowed}.lobby__sidebar{flex:1;min-width:200px;max-width:400px;border-left:1px solid var(--border-default);display:flex;flex-direction:column;background-color:var(--bg-primary);overflow:hidden}.lobby__sidebar-tabs{display:flex;flex-shrink:0;border-bottom:1px solid var(--border-subtle)}.lobby__sidebar-tab{flex:1;padding:var(--space-2) var(--space-3);font-size:var(--text-xs);font-weight:var(--font-medium);color:var(--text-muted);background:none;border:none;border-bottom:2px solid transparent;cursor:pointer;transition:color var(--transition-fast),border-color var(--transition-fast);white-space:nowrap}.lobby__sidebar-tab.active{color:var(--text-primary);border-bottom-color:var(--color-primary-500)}.lobby__sidebar-tab:hover:not(.active){color:var(--text-secondary)}.lobby__sidebar-content{flex:1;display:flex;flex-direction:column;overflow:hidden}.lobby__sidebar-content .lobby__players-header{padding:var(--space-3) var(--space-4);border-bottom:none;font-size:var(--text-sm);font-weight:var(--font-semibold);color:var(--text-secondary);display:none}.lobby__players-count{background-color:var(--color-primary-600);color:#fff;font-size:var(--text-xs);padding:1px 6px;border-radius:var(--radius-full)}.lobby__players-list{flex:1;overflow-y:auto;padding:var(--space-2) var(--space-4)}.lobby__player-item{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) 0;font-size:var(--text-sm);color:var(--text-secondary)}.lobby__player-dot{width:8px;height:8px;border-radius:var(--radius-full);background-color:var(--color-success-400);flex-shrink:0}.lobby__player-dot--in-room{background-color:var(--color-warning-400, #f59e0b)}.lobby__player-room{margin-left:auto;font-size:var(--text-xs);color:var(--text-muted);background:var(--surface-3, rgba(255, 255, 255, .05));padding:1px var(--space-2);border-radius:var(--radius-sm);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:80px}.lobby__leaderboard{padding:0}.lobby__tabs{display:none;flex-shrink:0;border-bottom:1px solid var(--border-default);background-color:var(--bg-secondary)}.lobby__tabs button{flex:1;padding:var(--space-2);font-size:var(--text-xs);font-weight:var(--font-medium);color:var(--text-muted);background:none;border:none;border-bottom:2px solid transparent;cursor:pointer;transition:color var(--transition-fast),border-color var(--transition-fast)}.lobby__tabs button.active{color:var(--text-primary);border-bottom-color:var(--color-primary-500)}.replay-list{flex:1;overflow-y:auto;padding:var(--space-2) var(--space-4);display:flex;flex-direction:column;gap:var(--space-3)}.replay-list__empty{display:flex;align-items:center;justify-content:center;flex:1;color:var(--text-muted);font-size:var(--text-sm);padding:var(--space-8);text-align:center}.replay-card{display:flex;flex-direction:column;gap:var(--space-1);padding:var(--space-3) var(--space-4);background-color:var(--bg-card);border:1px solid var(--border-default);border-radius:var(--radius-lg);transition:border-color var(--transition-fast)}.replay-card:hover{border-color:var(--color-primary-600)}.replay-card__date{font-size:var(--text-xs);color:var(--text-muted)}.replay-card__info{font-size:var(--text-sm);font-weight:var(--font-semibold);color:var(--text-primary)}.replay-card__score{font-size:var(--text-sm);color:var(--text-secondary)}.replay-card__winner{font-size:var(--text-xs);font-weight:var(--font-medium);color:var(--color-success-400)}.replay-card__actions{display:flex;gap:var(--space-2);margin-top:var(--space-1)}.replay-card__watch{padding:var(--space-1) var(--space-3);background-color:var(--btn-primary-bg);color:var(--btn-primary-text);border-radius:var(--radius-md);font-size:var(--text-xs);font-weight:var(--font-medium);cursor:pointer;border:none;transition:background-color var(--transition-fast)}.replay-card__watch:hover{background-color:var(--btn-primary-hover)}.replay-card__delete{padding:var(--space-1) var(--space-3);background-color:transparent;color:var(--color-error-400);border:1px solid var(--color-error-400);border-radius:var(--radius-md);font-size:var(--text-xs);font-weight:var(--font-medium);cursor:pointer;transition:background-color var(--transition-fast)}.replay-card__delete:hover{background-color:#ef44441a}@media(max-width:1024px){.lobby__sidebar{display:none}.lobby__chat{max-width:400px}}@media(max-width:768px){.lobby__header{padding:var(--space-2) var(--space-3);flex-wrap:wrap}.lobby__logo{font-size:var(--text-base);gap:var(--space-1)}.lobby__tabs{display:flex}.lobby__body{flex-direction:column}.lobby__chat,.lobby__rooms,.lobby__sidebar{display:none;flex:1;min-width:0;max-width:none;border:none}.lobby__chat.active,.lobby__rooms.active,.lobby__sidebar.active{display:flex}.lobby__sidebar.active .lobby__sidebar-tabs{display:none}.lobby__rooms-header{padding:var(--space-3) var(--space-4);flex-wrap:wrap}.lobby__rooms-search{max-width:100%}.lobby__rooms-list{padding:0 var(--space-4) var(--space-4)}}.room{display:flex;flex-direction:column;height:100vh;overflow:hidden;background:linear-gradient(180deg,var(--color-neutral-950) 0%,var(--color-primary-950) 100%)}.room__header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-3) var(--space-6);background-color:var(--bg-secondary);border-bottom:1px solid var(--border-default);min-height:var(--header-height);flex-shrink:0}.room__header-left{display:flex;align-items:center;gap:var(--space-3)}.room__back-btn{color:var(--text-muted);display:flex;align-items:center;padding:var(--space-2);border-radius:var(--radius-md);transition:color var(--transition-fast),background-color var(--transition-fast)}.room__back-btn:hover{color:var(--text-primary);background-color:var(--btn-ghost-hover)}.room__title{font-size:var(--text-lg);font-weight:var(--font-semibold);color:var(--text-primary)}.room__mode-badge{font-size:var(--text-xs);font-weight:var(--font-medium);padding:2px var(--space-2);border-radius:var(--radius-full);background-color:#3b82f626;color:var(--color-primary-400)}.room__body{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-6);gap:var(--space-8);overflow-y:auto}.room__teams{display:flex;gap:var(--space-8);width:100%;max-width:800px;justify-content:center}.room__team{flex:1;max-width:340px;display:flex;flex-direction:column;gap:var(--space-3)}.room__team-header{text-align:center;font-size:var(--text-lg);font-weight:var(--font-bold);padding:var(--space-3);border-radius:var(--radius-lg) var(--radius-lg) 0 0}.room__team--a .room__team-header{background-color:#3b82f633;color:var(--color-primary-400);border:1px solid rgba(59,130,246,.3);border-bottom:none}.room__team--b .room__team-header{background-color:#ef444426;color:var(--color-error-400);border:1px solid rgba(239,68,68,.2);border-bottom:none}.room__vs{display:flex;align-items:center;justify-content:center;font-size:var(--text-2xl);font-weight:var(--font-bold);color:var(--text-muted);align-self:center}.room__slot{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4);border-radius:var(--radius-lg);border:1px dashed var(--border-default);background-color:var(--bg-secondary);min-height:64px;transition:border-color var(--transition-fast),background-color var(--transition-fast)}.room__slot--filled{border-style:solid}.room__slot--ready{border-color:var(--color-success-400);background-color:#22c55e0d}.room__slot-player{display:flex;align-items:center;gap:var(--space-3)}.room__slot-avatar{width:36px;height:36px;border-radius:var(--radius-full);background-color:var(--color-neutral-600);display:flex;align-items:center;justify-content:center;font-size:var(--text-sm);font-weight:var(--font-bold);color:var(--text-primary)}.room__slot-name{font-size:var(--text-sm);font-weight:var(--font-medium);color:var(--text-primary)}.room__slot-host{font-size:var(--text-xs);color:var(--color-warning-400)}.room__slot-empty{color:var(--text-muted);font-size:var(--text-sm)}.room__slot-status{font-size:var(--text-xs);font-weight:var(--font-medium);padding:2px var(--space-2);border-radius:var(--radius-full)}.room__slot-status--ready{background-color:#22c55e26;color:var(--color-success-400)}.room__slot-status--not-ready{background-color:#f59e0b26;color:var(--color-warning-400)}.room__join-team-btn{width:100%;padding:var(--space-3);border:1px dashed var(--border-default);border-radius:var(--radius-lg);color:var(--text-muted);font-size:var(--text-sm);transition:all var(--transition-fast);min-height:64px}.room__join-team-btn:hover{border-color:var(--color-primary-500);color:var(--text-accent);background-color:#3b82f60d}.room__actions{display:flex;gap:var(--space-4);align-items:center}.room__chat{width:100%;max-width:800px;max-height:200px;display:flex;flex-direction:column;background-color:var(--bg-secondary);border:1px solid var(--border-default);border-radius:var(--radius-lg);overflow:hidden}.room__chat-messages{flex:1;overflow-y:auto;padding:var(--space-2) var(--space-4);display:flex;flex-direction:column;gap:var(--space-1);font-size:var(--text-sm)}.room__chat-input{display:flex;gap:var(--space-2);padding:var(--space-2) var(--space-3);border-top:1px solid var(--border-subtle)}.room__chat-input input{flex:1;padding:var(--space-2) var(--space-3);background-color:var(--bg-input);border:1px solid var(--border-default);border-radius:var(--radius-md);color:var(--text-primary);font-size:var(--text-sm)}.room__chat-input input:focus{border-color:var(--border-focus)}.room__chat-input button{padding:var(--space-2) var(--space-3);background-color:var(--btn-primary-bg);color:var(--btn-primary-text);border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:var(--font-medium);transition:background-color var(--transition-fast)}.room__chat-input button:hover{background-color:var(--btn-primary-hover)}@media(max-width:768px){.room__teams{flex-direction:column;align-items:center}.room__vs{display:none}.room__team{max-width:100%;width:100%}.room__body{padding:var(--space-4);gap:var(--space-4)}}.game{position:fixed;top:0;right:0;bottom:0;left:0;width:100vw;width:100dvw;height:100vh;height:100dvh;overflow:hidden;background:#000;overscroll-behavior:none;touch-action:none;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}.game__canvas{display:block;width:100%;height:100%;max-width:none;max-height:none;touch-action:none}.game__loading{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;background:#111;color:#fff;font-family:system-ui,sans-serif;font-size:18px;z-index:20;transition:opacity .3s ease}.game__loading--hidden{opacity:0;pointer-events:none}.game__spinner{width:40px;height:40px;border:3px solid rgba(255,255,255,.2);border-top-color:#fff;border-radius:50%;animation:game-spin .8s linear infinite}@keyframes game-spin{to{transform:rotate(360deg)}}