:root{--color-navy:#102b4c;--color-red:#ef4444;--color-green:#65a30d;--color-yellow:#eab308;--bg-primary:var(--color-navy);--bg-primary-dark:#0a1c33;--bg-primary-light:#35547a;--bg-accent:var(--color-red);--bg-accent-soft:#fee2e2;--bg-page:#fff;--bg-surface:#fff;--bg-surface-hover:#f1f5f9;--bg-border:#e2e8f0;--bg-text:var(--color-navy);--bg-text-secondary:#475569;--logo-light-display:block;--logo-dark-display:none;--header-bg:#fff;--header-text:var(--color-navy);--header-text-secondary:#102b4cb3;--header-border:#e2e8f0;--header-link-hover-bg:#102b4c0f;--header-toggle-bg:#fff;--header-mobile-bg:#f8fafc;--sans:system-ui, "Segoe UI", Roboto, sans-serif;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--bg-text);background:var(--bg-page);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}@media (width<=1024px){:root{font-size:16px}}:root[data-theme=dark]{--bg-primary:#35547a;--bg-primary-dark:#24405f;--bg-primary-light:#4d6d94;--bg-accent-soft:#3f1d1d;--bg-page:#0f172a;--bg-surface:#182437;--bg-surface-hover:#1e2c42;--bg-border:#2c3d55;--bg-text:#f1f5f9;--bg-text-secondary:#94a3b8;--logo-light-display:none;--logo-dark-display:block;--header-bg:#0a1c33;--header-text:#f1f5f9;--header-text-secondary:#f1f5f9b3;--header-border:#2c3d55;--header-link-hover-bg:#ffffff14;--header-toggle-bg:#182437;--header-mobile-bg:#0a1c33}*{box-sizing:border-box}html,body,#root{width:100%;min-height:100vh;margin:0}body{background:var(--bg-page)}h1,h2{font-family:var(--sans);color:var(--bg-text);margin:0 0 .5rem;font-weight:600}.logo-light{display:var(--logo-light-display)}.logo-dark{display:var(--logo-dark-display)}.theme-toggle{border:1px solid var(--header-border);background:var(--header-toggle-bg);cursor:pointer;border-radius:999px;justify-content:center;align-items:center;width:40px;height:40px;padding:0;transition:background-color .15s,border-color .15s;display:flex}.theme-toggle:hover{background:var(--header-link-hover-bg)}.theme-toggle__icon{width:1.25rem;height:1.25rem;color:var(--header-text);justify-content:center;align-items:center;display:flex}.theme-toggle__icon svg{width:100%;height:100%}.theme-toggle--light .theme-toggle__icon{color:#eab308}.theme-toggle--dark .theme-toggle__icon{color:#94a3b8}.theme-toggle--system .theme-toggle__icon{color:var(--header-text-secondary)}.navbar{background:var(--header-bg);color:var(--header-text);border-bottom:1px solid var(--header-border);z-index:20;transition:background-color .15s,border-color .15s;position:sticky;top:0}.navbar__row{justify-content:space-between;align-items:center;gap:1rem;max-width:1200px;margin:0 auto;padding:.85rem 1.5rem;transition:padding .15s;display:flex}.navbar--scrolled .navbar__row{padding:.4rem 1.5rem}.navbar--scrolled .navbar__logo{width:64px;height:58.75px}.navbar--scrolled .navbar__title{font-size:1.4rem}.navbar__brand{color:var(--header-text);align-items:center;gap:.6rem;text-decoration:none;display:flex}.navbar__logo-wrap{display:flex}.navbar__logo{width:128px;height:117.5px;transition:width .15s,height .15s}.navbar__title{font-size:2rem;font-weight:700;transition:font-size .15s}.navbar__title-word--board{color:var(--color-navy)}.navbar__title-word--and{color:var(--color-green)}.navbar__title-word--team{color:var(--color-red)}.navbar__links{align-items:center;gap:.5rem;display:none}.navbar__link{color:var(--header-text-secondary);border-radius:.5rem;padding:.5rem .85rem;font-size:.95rem;font-weight:500;text-decoration:none;transition:background-color .15s,color .15s}.navbar__link:hover{background:var(--header-link-hover-bg);color:var(--header-text)}.navbar__link[aria-current=page]{background:var(--bg-accent);color:#fff}.navbar__theme-toggle{margin-left:.25rem}.navbar__toggle{cursor:pointer;background:0 0;border:none;border-radius:.5rem;flex-direction:column;justify-content:center;gap:5px;width:40px;height:40px;padding:0;display:flex}.navbar__toggle-bar{background:var(--header-text);border-radius:2px;width:22px;height:2px;margin:0 auto;display:block}.navbar__mobile-menu{background:var(--header-mobile-bg);border-top:1px solid var(--header-border);flex-direction:column;gap:1rem;padding:.5rem 1.5rem 1.25rem;display:flex}.navbar__mobile-section{flex-direction:column;gap:.25rem;display:flex}.navbar__mobile-heading{text-transform:uppercase;letter-spacing:.06em;color:var(--header-text-secondary);padding:.5rem .75rem .15rem;font-size:.8rem}.navbar__mobile-link{color:var(--header-text);border-radius:.5rem;align-items:center;gap:.6rem;padding:.6rem .75rem;font-weight:500;text-decoration:none;display:flex}.navbar__mobile-link:hover{background:var(--header-link-hover-bg)}.navbar__mobile-link[aria-current=page]{background:var(--bg-accent);color:#fff}.navbar__mobile-theme-toggle{align-self:flex-start;margin:.25rem .75rem 0}@media (width<=899px){.navbar__brand{text-align:center;flex-direction:column;align-items:center;gap:.3rem}.navbar__logo-wrap{justify-content:center}.navbar__title{font-size:1rem}.navbar--scrolled .navbar__logo{width:48px;height:44px}.navbar--scrolled .navbar__title{font-size:.8rem}}@media (width>=900px){.navbar__links{display:flex}.navbar__toggle,.navbar__mobile-menu{display:none}}.sidebar{background:var(--header-bg);width:220px;min-width:220px;color:var(--header-text);border-right:1px solid var(--header-border);box-sizing:border-box;flex-direction:column;padding:1.5rem 1rem;transition:background-color .15s,border-color .15s;display:none}.sidebar__list{flex-direction:column;gap:.35rem;margin:0;padding:0;list-style:none;display:flex}.sidebar__item{width:100%;color:var(--header-text-secondary);cursor:pointer;text-align:left;background:0 0;border:none;border-radius:.6rem;align-items:center;gap:.65rem;padding:.65rem .9rem;font-size:.95rem;font-weight:500;text-decoration:none;transition:background-color .15s,color .15s;display:flex}.sidebar__item:hover{background:var(--header-link-hover-bg);color:var(--header-text)}.sidebar__item[aria-current=page]{background:var(--bg-accent);color:#fff}.sidebar__item-icon{font-size:1.15rem}@media (width>=900px){.sidebar{display:flex}}.game-layout{width:100%;min-height:calc(100vh - 64px);display:flex}.game-layout__content{background:var(--bg-page);box-sizing:border-box;flex:1;justify-content:center;align-items:flex-start;padding:3rem 1.25rem;display:flex}.game-layout__card{background:var(--bg-surface);border:1px solid var(--bg-border);border-radius:1rem;min-width:320px;max-width:100%;padding:2.5rem 3rem;box-shadow:0 10px 30px #102b4c14}@media (width<=520px){.game-layout__card{padding:2rem 1.25rem}}.home{max-width:1000px;margin:0 auto;padding:3rem 1.5rem 4rem}.home__grid{grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:1rem;display:grid}.home__card{background:var(--bg-surface);border:1px solid var(--bg-border);color:var(--bg-text);border-radius:1rem;flex-direction:column;gap:.5rem;padding:1.25rem;text-decoration:none;transition:transform .15s,border-color .15s;display:flex;box-shadow:0 10px 30px #102b4c0f}.home__card:hover{border-color:var(--bg-accent);transform:translateY(-3px)}.home__card-header{align-items:center;gap:.6rem;display:flex}.home__card-icon{font-size:1.5rem;line-height:1}.home__card-name{font-size:1.15rem;font-weight:700}.home__card-description{color:var(--bg-text-secondary);white-space:pre-line;font-size:.9rem}.about{max-width:640px;margin:0 auto;padding:3rem 1.5rem 4rem}.about p{color:var(--bg-text-secondary);line-height:1.6}.online-tic-tac-toe{flex-direction:column;align-items:center;gap:1rem;max-width:24rem;display:flex}.online-tic-tac-toe__status{color:var(--bg-text-secondary);text-align:center;min-height:1.5rem;font-size:1.1rem;font-weight:600}.online-tic-tac-toe__error{color:#dc2626;margin:-.5rem 0 0;font-size:.9rem}.online-tic-tac-toe__primary{color:#fff;background:var(--bg-primary);cursor:pointer;border:none;border-radius:.5rem;padding:.6rem 1.5rem;font-size:1rem;font-weight:600;transition:background-color .15s}.online-tic-tac-toe__primary:hover{background:var(--bg-primary-dark)}.online-tic-tac-toe__share{background:var(--bg-page);border:1px solid var(--bg-border);border-radius:.75rem;flex-direction:column;gap:.4rem;width:100%;padding:.9rem 1rem;display:flex}.online-tic-tac-toe__share label{color:var(--bg-text-secondary);font-size:.85rem}.online-tic-tac-toe__share-row{gap:.5rem;display:flex}.online-tic-tac-toe__share-row input{border:1px solid var(--bg-border);color:var(--bg-text-secondary);background:var(--bg-surface);border-radius:.4rem;flex:1;padding:.4rem .6rem;font-size:.85rem}.online-tic-tac-toe__share-row button{color:#fff;background:var(--bg-accent);cursor:pointer;white-space:nowrap;border:none;border-radius:.4rem;padding:.4rem .9rem;font-size:.85rem;font-weight:600}.online-tic-tac-toe__qr{background:#fff;border-radius:.5rem;justify-content:center;align-self:center;padding:.75rem;display:flex}.online-tic-tac-toe__you{color:var(--bg-text-secondary);margin:0;font-size:.9rem}.online-tic-tac-toe__board{grid-template-rows:repeat(3,5.5rem);grid-template-columns:repeat(3,5.5rem);gap:.5rem;display:grid}.online-tic-tac-toe__cell{color:var(--bg-primary);background:var(--bg-surface);border:2px solid var(--bg-border);cursor:pointer;border-radius:.75rem;font-size:2.25rem;font-weight:700;transition:background-color .15s,transform .1s}.online-tic-tac-toe__cell:not(:disabled):hover{background:var(--bg-surface-hover);transform:translateY(-2px)}.online-tic-tac-toe__cell:disabled{cursor:default}.online-tic-tac-toe__cell[data-highlight=true]{background:var(--bg-accent-soft);border-color:var(--bg-accent);color:var(--bg-accent)}.online-tic-tac-toe__reset{color:#fff;background:var(--bg-primary);cursor:pointer;border:none;border-radius:.5rem;padding:.5rem 1.25rem;font-size:.95rem;font-weight:600;transition:background-color .15s}.online-tic-tac-toe__reset:hover{background:var(--bg-primary-dark)}.app-layout{flex-direction:column;width:100%;min-height:100vh;display:flex}