:root{--color-bg: #0a0a0a;--color-bg-raised: #111111;--color-surface: #1a1a1a;--color-surface-hover: #222222;--color-border: #2a2a2a;--color-border-strong: #3a3a3a;--color-fg: #e0e0e0;--color-fg-muted: #888888;--color-fg-faint: #555555;--color-accent: #00ff9d;--color-accent-hover: #33ffb1;--color-accent-dim: rgba(0, 255, 157, .12);--color-accent-2: #ffb000;--color-accent-2-dim: rgba(255, 176, 0, .12);--color-error: #ff4444;--color-error-dim: rgba(255, 68, 68, .12);--color-success: #00ff9d;--color-warning: #ffb000;--color-book: #8b8b8b;--color-best: #26c2a3;--color-excellent: #81b64c;--color-brilliant: var(--color-accent);--color-great: #4ade80;--color-good: var(--color-fg-muted);--color-inaccuracy: #facc15;--color-mistake: #f97316;--color-miss: #e6681e;--color-blunder: var(--color-error);--font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", "SF Mono", ui-monospace, monospace;--text-xs: .75rem;--text-sm: .8125rem;--text-base: .9375rem;--text-lg: 1.125rem;--text-xl: 1.375rem;--text-2xl: 1.75rem;--text-3xl: 2.25rem;--leading-tight: 1.25;--leading-normal: 1.6;--weight-normal: 400;--weight-medium: 500;--weight-bold: 700;--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: 4rem;--radius-sm: 2px;--radius: 4px;--radius-lg: 6px;--transition-fast: .1s ease;--transition-normal: .15s ease;--transition-slow: .25s ease;--glow-accent: 0 0 20px rgba(0, 255, 157, .08);--glow-accent-strong: 0 0 30px rgba(0, 255, 157, .15);--shadow-card: 0 1px 3px rgba(0, 0, 0, .4);--max-width: 64rem;--header-height: 3.5rem}*,*: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:100dvh;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;background:none;border:none}a{color:inherit;text-decoration:none}ul,ol{list-style:none}table{border-collapse:collapse}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}body{font-family:var(--font-mono);font-size:var(--text-base);color:var(--color-fg);background-color:var(--color-bg);line-height:var(--leading-normal)}#root{min-height:100dvh}::selection{background:var(--color-accent-dim);color:var(--color-accent)}:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}:focus:not(:focus-visible){outline:none}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-border-strong);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--color-fg-faint)}*{scrollbar-width:thin;scrollbar-color:var(--color-border-strong) transparent}h1,h2,h3,h4{font-weight:var(--weight-bold);line-height:var(--leading-tight);color:var(--color-fg)}h1{font-size:var(--text-3xl)}h2{font-size:var(--text-2xl)}h3{font-size:var(--text-xl)}h4{font-size:var(--text-lg)}h1:before{content:"> ";color:var(--color-accent);font-weight:var(--weight-normal)}h2:before{content:"$ ";color:var(--color-fg-faint);font-weight:var(--weight-normal)}a{color:var(--color-accent);text-decoration:none;border-bottom:1px solid transparent;transition:border-color var(--transition-normal)}a:hover{border-bottom-color:var(--color-accent)}code{font-family:var(--font-mono);font-size:.9em;background:var(--color-surface);padding:var(--space-1) var(--space-2);border-radius:var(--radius-sm)}pre{background:var(--color-surface);padding:var(--space-4);border-radius:var(--radius);overflow-x:auto}pre code{background:none;padding:0}.container{width:100%;max-width:var(--max-width);margin-inline:auto;padding-inline:var(--space-4)}@media(min-width:768px){.container{padding-inline:var(--space-8)}}.text-muted{color:var(--color-fg-muted)}.text-faint{color:var(--color-fg-faint)}.text-accent{color:var(--color-accent)}.text-warning{color:var(--color-warning)}.separator{height:1px;background:var(--color-border);border:none;margin:var(--space-6) 0}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:var(--space-4);transition:border-color var(--transition-normal),box-shadow var(--transition-normal)}.card:hover{border-color:var(--color-border-strong)}.card--glow:hover{border-color:var(--color-accent);box-shadow:var(--glow-accent)}.card--flat{border-color:transparent;background:var(--color-bg-raised)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-2) var(--space-5);font-family:var(--font-mono);font-size:var(--text-sm);font-weight:var(--weight-medium);line-height:1;border:1px solid var(--color-border-strong);border-radius:var(--radius);background:transparent;color:var(--color-fg);cursor:pointer;transition:background var(--transition-fast),border-color var(--transition-fast),color var(--transition-fast),box-shadow var(--transition-fast);white-space:nowrap;-webkit-user-select:none;user-select:none}.btn:hover{background:var(--color-surface-hover);border-color:var(--color-fg-faint)}.btn:active{background:var(--color-border)}.btn--primary{background:var(--color-accent);color:var(--color-bg);border-color:var(--color-accent)}.btn--primary:hover{background:var(--color-accent-hover);border-color:var(--color-accent-hover);color:var(--color-bg);box-shadow:var(--glow-accent)}.btn--ghost{border-color:transparent}.btn--ghost:hover{background:var(--color-surface);border-color:transparent}.btn--sm{padding:var(--space-1) var(--space-3);font-size:var(--text-xs)}.btn--lg{padding:var(--space-3) var(--space-6);font-size:var(--text-base)}.badge{display:inline-flex;align-items:center;padding:var(--space-1) var(--space-2);font-size:var(--text-xs);font-weight:var(--weight-medium);line-height:1;border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-fg-muted);border:1px solid var(--color-border)}.badge--accent{background:var(--color-accent-dim);color:var(--color-accent);border-color:transparent}.badge--warning{background:var(--color-accent-2-dim);color:var(--color-warning);border-color:transparent}.badge--error{background:var(--color-error-dim);color:var(--color-error);border-color:transparent}.input{width:100%;padding:var(--space-2) var(--space-3);font-family:var(--font-mono);font-size:var(--text-sm);color:var(--color-fg);background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius);transition:border-color var(--transition-normal),box-shadow var(--transition-normal)}.input::placeholder{color:var(--color-fg-faint)}.input:focus{border-color:var(--color-accent);box-shadow:var(--glow-accent);outline:none}.input--error{border-color:var(--color-error)}.input--error:focus{box-shadow:0 0 20px #ff444414}.kbd{display:inline-flex;align-items:center;padding:var(--space-1) var(--space-2);font-size:var(--text-xs);background:var(--color-bg-raised);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-fg-muted)}.stat{display:flex;flex-direction:column;gap:var(--space-1)}.stat__value{font-size:var(--text-2xl);font-weight:var(--weight-bold);color:var(--color-fg);line-height:1}.stat__label{font-size:var(--text-xs);color:var(--color-fg-muted);text-transform:uppercase;letter-spacing:.05em}.chess-board{display:flex;flex-direction:column;align-items:center;gap:var(--space-2);width:min(100%,350px)}.chess-board__grid-wrap{position:relative;width:100%;container-type:inline-size;display:flex;gap:4px;align-items:stretch}.chess-board__eval-bar{width:8px;flex-shrink:0;background:#111;border-radius:4px;overflow:hidden;display:flex;flex-direction:column-reverse;border:1px solid rgba(255,255,255,.08)}.chess-board__eval-bar-white{background:#f0f0f0;transition:height .4s ease;border-radius:0 0 3px 3px}.chess-board__grid{display:grid;grid-template-columns:repeat(8,1fr);grid-template-rows:repeat(8,1fr);flex:1;min-width:0;aspect-ratio:1;border:1px solid var(--color-border-strong);border-radius:var(--radius-sm);overflow:hidden}.chess-board__square{display:flex;align-items:center;justify-content:center;min-height:0;min-width:0;position:relative}.chess-board__square--light{background:#252525}.chess-board__square--dark{background:#181818}.chess-board__square--highlight{background:#00ff9d33}.chess-board__square--highlight.chess-board__square--light{background:#00ff9d40}.chess-board__square--highlight.chess-board__square--dark{background:#00ff9d26}.chess-board__piece{font-size:10cqw;line-height:1;-webkit-user-select:none;user-select:none;pointer-events:none}.chess-board__piece--white{color:#f0f0f0;text-shadow:0 0 6px rgba(240,240,240,.4)}.chess-board__piece--black{color:var(--color-accent, #00ff9d);text-shadow:0 0 6px rgba(0,255,157,.4)}.chess-board__rank-label,.chess-board__file-label{position:absolute;font-size:2.2cqw;font-family:var(--font-mono, monospace);font-weight:var(--weight-bold);line-height:1;pointer-events:none;-webkit-user-select:none;user-select:none}.chess-board__rank-label{top:2px;left:3px}.chess-board__file-label{bottom:2px;right:3px}.chess-board__square--light .chess-board__rank-label,.chess-board__square--light .chess-board__file-label{color:#ffffff59}.chess-board__square--dark .chess-board__rank-label,.chess-board__square--dark .chess-board__file-label{color:#ffffff40}.chess-board__footer{display:flex;align-items:center;gap:var(--space-2);width:100%;min-height:1.4em}.chess-board__move-label{font-size:var(--text-xs);color:var(--color-fg-muted);font-family:var(--font-mono, monospace)}.chess-board__badge{font-size:1.1rem;font-weight:var(--weight-bold);line-height:1;pointer-events:none;filter:drop-shadow(0 0 6px currentColor);flex-shrink:0}.chess-board__badge--mate{color:var(--color-accent);text-shadow:0 0 8px var(--color-accent);letter-spacing:.02em}.chess-board__badge--brilliant{color:var(--color-brilliant)}.chess-board__badge--great{color:var(--color-great)}.chess-board__badge--miss{color:var(--color-miss)}.chess-board__badge--blunder{color:var(--color-blunder)}.move-list{display:flex;flex-direction:row;align-items:center;overflow-x:auto;overflow-y:hidden;gap:0;font-family:var(--font-mono, monospace);font-size:var(--text-xs);white-space:nowrap;scrollbar-width:none;-ms-overflow-style:none}.move-list::-webkit-scrollbar{display:none}.move-list__num{color:var(--color-fg-faint);padding:0 var(--space-1);-webkit-user-select:none;user-select:none;flex-shrink:0}.move-list__move{background:none;border:none;color:var(--color-fg-muted);font-family:inherit;font-size:inherit;padding:var(--space-1) var(--space-1);cursor:pointer;border-radius:var(--radius-sm);flex-shrink:0;transition:color var(--transition-fast);white-space:nowrap}.move-list__move:hover{color:var(--color-fg)}.move-list__move--active{color:var(--color-accent);background:var(--color-accent-dim)}.move-list__badge{display:inline-block;margin-left:2px;font-size:.7rem;font-weight:var(--weight-bold);vertical-align:middle}.move-list__badge--brilliant{color:var(--color-brilliant);text-shadow:0 0 6px var(--color-brilliant)}.move-list__badge--great{color:var(--color-great)}.move-list__badge--miss{color:var(--color-miss)}.move-list__badge--blunder{color:var(--color-blunder)}.game-card{padding:var(--space-5);display:flex;flex-direction:column;gap:var(--space-3);-webkit-user-select:none;user-select:none;touch-action:none}.game-card__header{display:flex;align-items:center;justify-content:space-between}.game-card__result{font-size:var(--text-lg);font-weight:var(--weight-bold);letter-spacing:.05em}.game-card__result--win{color:var(--color-accent)}.game-card__result--loss{color:var(--color-error)}.game-card__result--draw{color:var(--color-fg-muted)}.game-card__header-right{display:flex;align-items:center;gap:var(--space-2)}.game-card__date{font-size:var(--text-xs);color:var(--color-fg-faint)}.game-card__analysis-summary{display:flex;align-items:center;gap:var(--space-1);font-family:var(--font-mono, monospace);font-size:var(--text-xs)}.game-card__analysis-sep{color:var(--color-fg-faint)}.game-card__analysis-badge{font-weight:var(--weight-bold)}.game-card__analysis-badge--brilliant{color:var(--color-brilliant);text-shadow:0 0 8px var(--color-brilliant)}.game-card__analysis-badge--great{color:var(--color-great)}.game-card__analysis-badge--blunder{color:var(--color-blunder)}.game-card__analysis-badge--miss{color:var(--color-miss)}.game-card__analyzing{font-size:var(--text-xs);color:var(--color-fg-faint);font-family:var(--font-mono, monospace);animation:blink 1.2s step-end infinite}@keyframes blink{0%,to{opacity:1}50%{opacity:.3}}.game-card__opponent{display:flex;align-items:center;gap:var(--space-2)}.game-card__color-dot{width:12px;height:12px;border-radius:50%;flex-shrink:0;border:1px solid var(--color-border-strong)}.game-card__color-dot--white{background:#e0e0e0}.game-card__color-dot--black{background:#1a1a1a}.game-card__vs{font-size:var(--text-xs);color:var(--color-fg-faint)}.game-card__opponent-name{font-weight:var(--weight-medium);color:var(--color-fg)}.game-card__rating{font-size:var(--text-sm);color:var(--color-fg-muted)}.game-card__stats{display:flex;flex-wrap:wrap;gap:var(--space-2)}.game-card__link{color:var(--color-accent);text-decoration:none;transition:text-decoration .15s ease}.game-card__link:hover{text-decoration:underline}.game-card__board-area{border-top:1px solid var(--color-border);padding-top:var(--space-3);margin-top:var(--space-1);display:flex;flex-direction:column;gap:var(--space-3)}.game-card__board{display:flex;justify-content:center;flex-shrink:0;width:100%}.game-card__controls{display:flex;align-items:center;justify-content:center;gap:var(--space-2);padding-top:var(--space-2)}.game-card__controls-btn{padding:var(--space-1) var(--space-2);font-size:var(--text-xs);min-width:unset}.game-card__move-counter{font-size:var(--text-xs);color:var(--color-fg-muted);margin-left:auto}.game-list{display:flex;flex-direction:column;width:100%;border:1px solid var(--color-border);border-radius:var(--radius);overflow:hidden}.game-list__row{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-2) var(--space-3);background:transparent;border:none;border-bottom:1px solid var(--color-border);cursor:pointer;text-align:left;font-size:var(--text-sm);color:var(--color-fg);font-family:var(--font-mono, monospace);transition:background var(--transition-fast);width:100%}.game-list__row:last-child{border-bottom:none}.game-list__row:hover{background:var(--color-surface)}.game-list__result{font-size:var(--text-xs);font-weight:var(--weight-bold);width:1.4em;text-align:center;flex-shrink:0}.game-list__result--win{color:var(--color-great)}.game-list__result--loss{color:var(--color-error)}.game-list__result--draw{color:var(--color-fg-muted)}.game-list__dot{width:8px;height:8px;border-radius:50%;flex-shrink:0;border:1px solid var(--color-border-strong)}.game-list__dot--white{background:#f0f0f0}.game-list__dot--black{background:#222}.game-list__opponent{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.game-list__rating{color:var(--color-fg-faint)}.game-list__badges{display:flex;gap:var(--space-1);flex-shrink:0}.game-list__moves{flex-shrink:0;min-width:3ch;text-align:right;font-size:var(--text-xs)}.game-list__acc{flex-shrink:0;min-width:4ch;text-align:right;font-size:var(--text-xs);color:var(--color-accent)}.game-list__date{flex-shrink:0;font-size:var(--text-xs);min-width:6ch;text-align:right}.game-stack{display:flex;flex-direction:column;gap:var(--space-4);width:100%;max-width:36rem;margin-inline:auto}.game-stack__controls{display:flex;align-items:center;justify-content:space-between;width:100%;gap:var(--space-3)}.game-stack__counter{font-size:var(--text-sm);font-family:var(--font-mono, monospace)}.game-stack__empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-2);min-height:200px;text-align:center;color:var(--color-fg-muted);width:100%}.game-stack__empty-icon{font-size:var(--text-3xl);color:var(--color-fg-faint)}.dashboard{padding-block:var(--space-6)}.dashboard__header{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);margin-bottom:var(--space-6);flex-wrap:wrap}.dashboard__player{display:flex;align-items:center;gap:var(--space-3)}.dashboard__avatar{width:40px;height:40px;border-radius:50%;border:1px solid var(--color-border-strong)}.dashboard__username{font-size:var(--text-lg)}.dashboard__username:before{content:none}.dashboard__actions{display:flex;align-items:center;gap:var(--space-2)}.dashboard__view-toggle{display:flex;border:1px solid var(--color-border);border-radius:var(--radius);overflow:hidden}.dashboard__view-toggle .btn{border-radius:0;border:none}.dashboard__view-toggle .btn+.btn{border-left:1px solid var(--color-border)}.dashboard__loading{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-16) 0;text-align:center}.landing{display:flex;align-items:center;justify-content:center;min-height:100dvh;padding:var(--space-4)}.landing__content{width:100%;max-width:32rem;text-align:center}.landing__ascii{color:var(--color-accent);font-size:.45rem;line-height:1.2;margin-bottom:var(--space-6);overflow:hidden;-webkit-user-select:none;user-select:none}@media(min-width:480px){.landing__ascii{font-size:.6rem}}@media(min-width:640px){.landing__ascii{font-size:.75rem}}.landing__subtitle{color:var(--color-fg-muted);font-size:var(--text-base);margin-bottom:var(--space-8);opacity:0;transform:translateY(4px);transition:opacity .6s ease,transform .6s ease}.landing__subtitle--visible{opacity:1;transform:translateY(0)}.landing__prompt{color:var(--color-accent);margin-right:var(--space-1)}.landing__cursor{color:var(--color-accent);animation:blink 1s step-end infinite}@keyframes blink{50%{opacity:0}}.landing__tabs{display:flex;gap:0;margin-bottom:var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius);overflow:hidden}.landing__tab{flex:1;padding:var(--space-2) var(--space-3);font-size:var(--text-sm);font-family:var(--font-mono, monospace);background:transparent;border:none;color:var(--color-fg-muted);cursor:pointer;transition:background var(--transition-normal),color var(--transition-normal)}.landing__tab+.landing__tab{border-left:1px solid var(--color-border)}.landing__tab--active{background:var(--color-accent);color:#000}.landing__tab:not(.landing__tab--active):hover{background:var(--color-surface);color:var(--color-fg)}.landing__pgn-input{width:100%;resize:vertical;font-family:var(--font-mono, monospace);font-size:var(--text-xs);line-height:1.6;padding:var(--space-3);background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius);color:var(--color-fg);transition:border-color var(--transition-normal);box-sizing:border-box}.landing__pgn-input:focus{outline:none;border-color:var(--color-accent);box-shadow:var(--glow-accent)}.landing__pgn-input::placeholder{color:var(--color-fg-faint)}.landing__form{display:flex;flex-direction:column;gap:var(--space-3);margin-bottom:var(--space-4)}.landing__input-row{display:flex;align-items:center;gap:var(--space-2);background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius);padding-left:var(--space-3);transition:border-color var(--transition-normal)}.landing__input-row:focus-within{border-color:var(--color-accent);box-shadow:var(--glow-accent)}.landing__input-prefix{color:var(--color-fg-faint);font-size:var(--text-lg);-webkit-user-select:none;user-select:none;flex-shrink:0}.landing__input{border:none;background:transparent;font-size:var(--text-lg);padding:var(--space-3) var(--space-3) var(--space-3) var(--space-1)}.landing__input:focus{box-shadow:none;border-color:transparent;outline:none}.landing__submit{width:100%}.landing__error{color:var(--color-error);font-size:var(--text-sm);margin-bottom:var(--space-3);padding:var(--space-2) var(--space-3);background:var(--color-error-dim, rgba(255, 68, 68, .1));border-radius:var(--radius);border:1px solid rgba(255,68,68,.2)}.landing__recent{display:flex;flex-wrap:wrap;gap:var(--space-2);justify-content:center;margin-bottom:var(--space-3)}.landing__recent-tag{padding:var(--space-1) var(--space-3);font-size:var(--text-xs);font-family:var(--font-mono, monospace);background:transparent;border:1px solid var(--color-border);border-radius:var(--radius);color:var(--color-fg-muted);cursor:pointer;transition:border-color var(--transition-normal),color var(--transition-normal)}.landing__recent-tag:hover:not(:disabled){border-color:var(--color-accent);color:var(--color-accent)}.landing__recent-tag:disabled{opacity:.5;cursor:not-allowed}.landing__hint{color:var(--color-fg-faint);font-size:var(--text-xs)}.pgn-view{padding-top:var(--space-4);padding-bottom:var(--space-8)}.pgn-view__header{display:flex;align-items:center;gap:var(--space-3);margin-bottom:var(--space-4)}.pgn-view__title{font-family:var(--font-mono, monospace);font-size:var(--text-sm);color:var(--color-fg-muted)}