.ttt-app {color-scheme:dark;--panel:#191d2a;--tile:#292f40;--muted:#949fb5;--blue:#38bdf8;--pink:#fb7185}
.ttt-app, .ttt-app * {box-sizing:border-box}
.ttt-app {min-height:0vh;margin:0;color:#f6f8ff;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}
.ttt-app button {font:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent}
.ttt-app button:focus-visible {outline:3px solid var(--blue);outline-offset:3px}
.ttt-app .page {width:min(100% - 28px,510px);margin:0 auto;padding:clamp(28px,6vh,60px) 0 25px}
.ttt-app .heading {text-align:center;margin-bottom:27px}
.ttt-app .kicker {display:flex;justify-content:center;align-items:center;gap:9px;color:#a5c9dc;font-size:10px;font-weight:800;letter-spacing:.16em}
.ttt-app .dot {display:inline-block;width:7px;height:7px;background:#47e3ba;border-radius:50%;box-shadow:0 0 12px #47e3ba80}
.ttt-app h1 {margin:12px 0 6px;font-size:clamp(37px,8vw,56px);line-height:1.1;letter-spacing:-.065em;font-weight:850}
.ttt-app h1 span:not(.period) {color:var(--blue)}
.ttt-app h1 .period {color:var(--pink)}
.ttt-app .heading p {margin:9px 0 0;color:var(--muted);font-size:14px}
.ttt-app .game {background:var(--panel);border:1px solid #303749;border-radius:24px;padding:clamp(18px,5vw,30px);box-shadow:0 24px 75px #0006}
.ttt-app .topline {display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:3px}
.ttt-app .tag, .ttt-app .online {font-size:10px;font-weight:800;letter-spacing:.08em}
.ttt-app .tag {color:#d3dcec;font-size:11px;font-weight:800;letter-spacing:.12em;font-family:inherit}
.ttt-app .online {color:#72cdb7;display:flex;align-items:center;gap:7px}
.ttt-app .online .dot {width:6px;height:6px}
.ttt-app .scoreboard {display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-bottom:25px}
.ttt-app .score {background:#222838;border:1px solid #333c51;border-radius:12px;text-align:center;padding:13px 3px 10px}
.ttt-app .score-label {display:flex;align-items:center;justify-content:center;gap:6px;min-height:23px;line-height:1;color:#a8b4cb;font-size:11px;font-weight:800;letter-spacing:.08em}
.ttt-app .mini {font-weight:900;font-size:15px}
.ttt-app .score strong {display:block;margin-top:0;font-size:31px;line-height:1.25;font-variant-numeric:tabular-nums}
.ttt-app .score-draw {background:#1e2331}
.ttt-app .selection-head {display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:11px}
.ttt-app .selection-head label {color:#d3dcec;font-size:11px;font-weight:800;letter-spacing:.12em}
.ttt-app .selection-head span {color:var(--muted);font-size:11px}
.ttt-app .difficulty {display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin-bottom:22px}
.ttt-app .difficulty button {min-height:42px;background:#2b3142;border:1px solid #3a4258;border-radius:9px;color:#c5cee0;font-size:13px;font-weight:750}
.ttt-app .difficulty button.selected {background:var(--blue);border-color:var(--blue);color:#0e1b2c;box-shadow:0 4px 16px #38bdf82d}
.ttt-app .difficulty button:hover:not(.selected) {background:#374158}
.ttt-app .status-wrap {display:flex;align-items:center;justify-content:center;gap:9px;min-height:24px;margin-bottom:15px}
.ttt-app .status-wrap p {margin:0;font-size:14px;font-weight:650}
.ttt-app .status-dot {width:8px;height:8px;border-radius:50%;background:var(--blue);box-shadow:0 0 9px #38bdf877}
.ttt-app .status-dot.bot {background:var(--pink);box-shadow:0 0 9px #fb718588}
.ttt-app .status-dot.done {background:#47e3ba}
.ttt-app .board {width:100%;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(7px,2vw,11px)}
.ttt-app .cell {display:flex;align-items:center;justify-content:center;aspect-ratio:1;min-width:0;padding:0;background:var(--tile);border:1px solid #374157;border-radius:12px;transition:background .15s,transform .15s;border-box:box-sizing}
.ttt-app .cell:not(:disabled):hover {background:#343d53;transform:scale(1.025)}
.ttt-app .cell:disabled {cursor:default}
.ttt-app .mark {font-family:Arial,Helvetica,sans-serif;font-size:clamp(60px,17vw,99px);font-weight:900;line-height:1;animation:pop .18s ease-out}
.ttt-app .x {color:var(--blue);text-shadow:0 0 21px #38bdf86b}
.ttt-app .o {color:var(--pink);text-shadow:0 0 21px #fb71856b}
.ttt-app .cell.win {background:#294855;border-color:#6ee7c7;box-shadow:inset 0 0 0 1px #6ee7c740}
.ttt-app .restart {width:100%;margin-top:20px;padding:15px;border:0;border-radius:11px;background:var(--blue);color:#0e1b2c;font-size:15px;font-weight:850;transition:filter .15s}
.ttt-app .restart:hover {filter:brightness(1.11)}
.ttt-app .restart span {margin-left:5px}
.ttt-app .hint {text-align:center;color:#8e9db5;font-size:12px;margin:17px 0 1px}
.ttt-app .hint .x {font-weight:900}
.ttt-app footer {margin-top:22px;text-align:center;color:#67748a;font-size:11px}
@keyframes pop{from{transform:scale(.65);opacity:.3}to{transform:scale(1);opacity:1}}
@media(max-width:380px){.ttt-app .page {width:calc(100% - 20px)}
.ttt-app .game {padding:16px}
.ttt-app .topline .online {font-size:9px}
.ttt-app .mark {font-size:clamp(50px,17vw,72px)}}
@media(prefers-reduced-motion:reduce){.ttt-app, .ttt-app *, .ttt-app *::before, .ttt-app *::after {animation:none!important;transition:none!important}}
.ttt-app .reset-scores {display:block;width:max-content;margin:-15px 0 23px auto;padding:5px 7px;border:0;background:transparent;color:#a5b4ca;font-size:12px;font-weight:700;border-radius:6px}
.ttt-app .reset-scores:hover {color:var(--blue);background:#293246}
.ttt-app .board-area {position:relative;isolation:isolate}
.ttt-app .game-over[hidden] {display:none!important}
.ttt-app .game-over {position:absolute;inset:0;z-index:2;display:flex;align-items:center;justify-content:center;padding:clamp(9px,3vw,18px);border-radius:14px;background:rgba(10,15,27,.25);backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px);animation:fade-in .2s ease-out}
.ttt-app .result-card {width:min(100%,350px);padding:clamp(17px,4vw,26px);text-align:center;background:rgba(24,31,47,.84);border:1px solid rgba(127,149,181,.4);border-radius:20px;box-shadow:0 15px 55px #0009, inset 0 1px #ffffff16;backdrop-filter:blur(7px);-webkit-backdrop-filter:blur(7px)}
.ttt-app .result-icon {display:grid;place-items:center;width:43px;height:43px;margin:0 auto 11px;border-radius:50%;background:#38bdf820;color:var(--blue);font-size:25px;font-weight:800}
.ttt-app .game-over[data-outcome="O"] .result-icon {background:#fb718520;color:var(--pink)}
.ttt-app .game-over[data-outcome="draw"] .result-icon {background:#47e3ba20;color:#47e3ba}
.ttt-app .result-card h2 {font-size:clamp(23px,5vw,29px);letter-spacing:-.04em;margin:0 0 5px}
.ttt-app .result-card p {font-size:clamp(12px,2.8vw,14px);line-height:1.45;color:#c1cbdd;margin:0 0 18px}
.ttt-app .overlay-new-game {width:100%;min-height:46px;border:0;border-radius:10px;background:var(--blue);color:#101b2a;font-size:14px;font-weight:850}
.ttt-app .overlay-new-game:hover {filter:brightness(1.1)}
@keyframes fade-in{from{opacity:0}to{opacity:1}}
@media(max-width:390px){.ttt-app .result-card {padding:14px}
.ttt-app .result-icon {width:35px;height:35px;margin-bottom:7px;font-size:20px}
.ttt-app .result-card p {margin-bottom:11px}
.ttt-app .overlay-new-game {min-height:40px}}
.ttt-app .result-icon {display:flex;align-items:center;justify-content:center;line-height:0}
.ttt-app .result-icon svg {display:block;width:25px;height:25px;flex:none;overflow:visible}
@media(max-width:390px){.ttt-app .result-icon svg {width:21px;height:21px}}
.ttt-app .selection-head .field-label {color:#d3dcec;font-size:11px;font-weight:800;letter-spacing:.12em}
.ttt-app .mode-select {display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin-bottom:21px}
.ttt-app .mode-select button {min-height:43px;border:1px solid #3a4258;border-radius:9px;background:#2b3142;color:#c5cee0;font-size:13px;font-weight:750}
.ttt-app .mode-select button.selected {background:var(--blue);border-color:var(--blue);color:#0e1b2c;box-shadow:0 4px 16px #38bdf82d}
.ttt-app .mode-select button:hover:not(.selected) {background:#374158}
.ttt-app #difficulty-section[hidden] {display:none}
.ttt-app .topline .reset-scores {margin:0;padding:6px 9px;white-space:nowrap}
.ttt-app { width: 100%; min-width: 0; isolation: isolate; }
.ttt-app .page { padding-top: 38px; padding-bottom: 42px; }
.ttt-app .reset-scores { margin: 0; }