*,:before,:after{--tw-border-spacing-x: 0;--tw-border-spacing-y: 0;--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }::backdrop{--tw-border-spacing-x: 0;--tw-border-spacing-y: 0;--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }*,:before,:after{box-sizing:border-box;border-width:0;border-style:solid;border-color:#e5e7eb}:before,:after{--tw-content: ""}html,:host{line-height:1.5;-webkit-text-size-adjust:100%;-moz-tab-size:4;-o-tab-size:4;tab-size:4;font-family:Inter,system-ui,sans-serif;font-feature-settings:normal;font-variation-settings:normal;-webkit-tap-highlight-color:transparent}body{margin:0;line-height:inherit}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-feature-settings:normal;font-variation-settings:normal;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}button,input,optgroup,select,textarea{font-family:inherit;font-feature-settings:inherit;font-variation-settings:inherit;font-size:100%;font-weight:inherit;line-height:inherit;letter-spacing:inherit;color:inherit;margin:0;padding:0}button,select{text-transform:none}button,input:where([type=button]),input:where([type=reset]),input:where([type=submit]){-webkit-appearance:button;background-color:transparent;background-image:none}:-moz-focusring{outline:auto}:-moz-ui-invalid{box-shadow:none}progress{vertical-align:baseline}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}summary{display:list-item}blockquote,dl,dd,h1,h2,h3,h4,h5,h6,hr,figure,p,pre{margin:0}fieldset{margin:0;padding:0}legend{padding:0}ol,ul,menu{list-style:none;margin:0;padding:0}dialog{padding:0}textarea{resize:vertical}input::-moz-placeholder,textarea::-moz-placeholder{opacity:1;color:#9ca3af}input::placeholder,textarea::placeholder{opacity:1;color:#9ca3af}button,[role=button]{cursor:pointer}:disabled{cursor:default}img,svg,video,canvas,audio,iframe,embed,object{display:block;vertical-align:middle}img,video{max-width:100%;height:auto}[hidden]:where(:not([hidden=until-found])){display:none}.pointer-events-none{pointer-events:none}.visible{visibility:visible}.fixed{position:fixed}.absolute{position:absolute}.relative{position:relative}.sticky{position:sticky}.inset-0{top:0;right:0;bottom:0;left:0}.bottom-0{bottom:0}.bottom-14{bottom:3.5rem}.bottom-4{bottom:1rem}.left-0{left:0}.right-0{right:0}.right-4{right:1rem}.top-0{top:0}.z-30{z-index:30}.z-\[2\]{z-index:2}.m-0{margin:0}.mx-auto{margin-left:auto;margin-right:auto}.mb-1{margin-bottom:.25rem}.mb-2{margin-bottom:.5rem}.mb-4{margin-bottom:1rem}.mb-5{margin-bottom:1.25rem}.ml-1\.5{margin-left:.375rem}.ml-3{margin-left:.75rem}.ml-auto{margin-left:auto}.mr-2{margin-right:.5rem}.mt-0\.5{margin-top:.125rem}.mt-1{margin-top:.25rem}.mt-2{margin-top:.5rem}.mt-4{margin-top:1rem}.mt-5{margin-top:1.25rem}.mt-6{margin-top:1.5rem}.block{display:block}.inline-block{display:inline-block}.flex{display:flex}.inline-flex{display:inline-flex}.grid{display:grid}.hidden{display:none}.h-1\.5{height:.375rem}.h-6{height:1.5rem}.h-7{height:1.75rem}.h-8{height:2rem}.h-9{height:2.25rem}.h-full{height:100%}.max-h-full{max-height:100%}.min-h-0{min-height:0px}.w-1\.5{width:.375rem}.w-6{width:1.5rem}.w-7{width:1.75rem}.w-8{width:2rem}.w-9{width:2.25rem}.w-full{width:100%}.min-w-0{min-width:0px}.max-w-2xl{max-width:42rem}.max-w-\[85\%\]{max-width:85%}.max-w-md{max-width:28rem}.flex-1{flex:1 1 0%}.flex-shrink-0,.shrink-0{flex-shrink:0}.transform{transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}@keyframes pulse{50%{opacity:.5}}.animate-pulse{animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}.select-none{-webkit-user-select:none;-moz-user-select:none;user-select:none}.resize{resize:both}.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.items-start{align-items:flex-start}.items-center{align-items:center}.items-stretch{align-items:stretch}.justify-start{justify-content:flex-start}.justify-end{justify-content:flex-end}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-1{gap:.25rem}.gap-1\.5{gap:.375rem}.gap-2{gap:.5rem}.gap-2\.5{gap:.625rem}.space-y-1>:not([hidden])~:not([hidden]){--tw-space-y-reverse: 0;margin-top:calc(.25rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(.25rem * var(--tw-space-y-reverse))}.space-y-2>:not([hidden])~:not([hidden]){--tw-space-y-reverse: 0;margin-top:calc(.5rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(.5rem * var(--tw-space-y-reverse))}.space-y-2\.5>:not([hidden])~:not([hidden]){--tw-space-y-reverse: 0;margin-top:calc(.625rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(.625rem * var(--tw-space-y-reverse))}.space-y-3>:not([hidden])~:not([hidden]){--tw-space-y-reverse: 0;margin-top:calc(.75rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(.75rem * var(--tw-space-y-reverse))}.overflow-hidden{overflow:hidden}.overflow-y-auto{overflow-y:auto}.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.rounded-\[6px\]{border-radius:6px}.rounded-\[8px\]{border-radius:8px}.rounded-full{border-radius:9999px}.rounded-md{border-radius:.375rem}.border{border-width:1px}.border-b{border-bottom-width:1px}.border-t{border-top-width:1px}.border-\[rgba\(122\,46\,46\,0\.45\)\]{border-color:#7a2e2e73}.border-\[rgba\(184\,146\,62\,0\.28\)\]{border-color:#b8923e47}.border-\[rgba\(74\,52\,35\,0\.3\)\]{border-color:#4a34234d}.border-\[var\(--gold\)\]{border-color:var(--gold)}.bg-\[rgba\(122\,46\,46\,0\.12\)\]{background-color:#7a2e2e1f}.bg-\[rgba\(184\,146\,62\,0\.03\)\]{background-color:#b8923e08}.bg-\[rgba\(184\,146\,62\,0\.06\)\]{background-color:#b8923e0f}.bg-\[rgba\(184\,146\,62\,0\.08\)\]{background-color:#b8923e14}.bg-\[rgba\(184\,146\,62\,0\.12\)\]{background-color:#b8923e1f}.bg-\[rgba\(184\,146\,62\,0\.15\)\]{background-color:#b8923e26}.bg-\[var\(--bg-card\)\]{background-color:var(--bg-card)}.bg-\[var\(--bg-surface\)\]{background-color:var(--bg-surface)}.bg-\[var\(--gold\)\]{background-color:var(--gold)}.bg-emerald-400{--tw-bg-opacity: 1;background-color:rgb(52 211 153 / var(--tw-bg-opacity, 1))}.bg-transparent{background-color:transparent}.object-cover{-o-object-fit:cover;object-fit:cover}.p-2\.5{padding:.625rem}.p-3{padding:.75rem}.p-4{padding:1rem}.p-6{padding:1.5rem}.px-0\.5{padding-left:.125rem;padding-right:.125rem}.px-2{padding-left:.5rem;padding-right:.5rem}.px-2\.5{padding-left:.625rem;padding-right:.625rem}.px-3{padding-left:.75rem;padding-right:.75rem}.px-4{padding-left:1rem;padding-right:1rem}.py-1{padding-top:.25rem;padding-bottom:.25rem}.py-1\.5{padding-top:.375rem;padding-bottom:.375rem}.py-2{padding-top:.5rem;padding-bottom:.5rem}.py-2\.5{padding-top:.625rem;padding-bottom:.625rem}.py-3{padding-top:.75rem;padding-bottom:.75rem}.pb-1{padding-bottom:.25rem}.pb-10{padding-bottom:2.5rem}.pb-3{padding-bottom:.75rem}.pl-3{padding-left:.75rem}.text-left{text-align:left}.text-center{text-align:center}.font-mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace}.font-serif{font-family:Source Serif 4,Georgia,serif}.text-3xl{font-size:1.875rem;line-height:2.25rem}.text-\[10px\]{font-size:10px}.text-\[11px\]{font-size:11px}.text-\[12px\]{font-size:12px}.text-\[13px\]{font-size:13px}.text-sm{font-size:.875rem;line-height:1.25rem}.text-xs{font-size:.75rem;line-height:1rem}.font-extrabold{font-weight:800}.font-medium{font-weight:500}.font-semibold{font-weight:600}.uppercase{text-transform:uppercase}.capitalize{text-transform:capitalize}.italic{font-style:italic}.tabular-nums{--tw-numeric-spacing: tabular-nums;font-variant-numeric:var(--tw-ordinal) var(--tw-slashed-zero) var(--tw-numeric-figure) var(--tw-numeric-spacing) var(--tw-numeric-fraction)}.leading-5{line-height:1.25rem}.leading-6{line-height:1.5rem}.leading-tight{line-height:1.25}.tracking-wide{letter-spacing:.025em}.text-\[\#E8A0A0\]{--tw-text-opacity: 1;color:rgb(232 160 160 / var(--tw-text-opacity, 1))}.text-\[var\(--gold-light\)\]{color:var(--gold-light)}.text-\[var\(--ivory\)\]{color:var(--ivory)}.text-\[var\(--ivory-dim\)\]{color:var(--ivory-dim)}.text-\[var\(--muted\)\]{color:var(--muted)}.underline{text-decoration-line:underline}.outline-none{outline:2px solid transparent;outline-offset:2px}.outline{outline-style:solid}.blur{--tw-blur: blur(8px);filter:var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow)}.filter{filter:var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow)}.transition{transition-property:color,background-color,border-color,text-decoration-color,fill,stroke,opacity,box-shadow,transform,filter,-webkit-backdrop-filter;transition-property:color,background-color,border-color,text-decoration-color,fill,stroke,opacity,box-shadow,transform,filter,backdrop-filter;transition-property:color,background-color,border-color,text-decoration-color,fill,stroke,opacity,box-shadow,transform,filter,backdrop-filter,-webkit-backdrop-filter;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.transition-all{transition-property:all;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.duration-500{transition-duration:.5s}.duration-700{transition-duration:.7s}:root,[data-theme=dark]{--walnut-950: #2A1D14;--walnut-800: #4A3423;--ivory-100: #EDE3CF;--brass-500: #B8923E;--oxblood-600: #7A2E2E;--sage-600: #6B8F5C;--bg-base: var(--walnut-950);--bg-surface: #342418;--bg-card: var(--walnut-800);--bg-elevated: #3A2A1C;--ivory: var(--ivory-100);--ivory-dim: #D4C9B0;--text-primary: var(--ivory-100);--text-muted: #A89880;--gold: var(--brass-500);--gold-dim: #8F6F2E;--gold-light: #C9A84E;--silver: #D4C9B0;--steel: #5C4632;--muted: #A89880;--border-subtle: rgba(74, 52, 35, .3);--border-gold: rgba(184, 146, 62, .35);--border-walnut: rgba(74, 52, 35, .3);--nav-link: rgba(237, 227, 207, .55);--hero-gradient: linear-gradient(135deg, #2A1D14 0%, #342418 50%, #2A1D14 100%);--board-light: #EDE0C8;--board-dark: #B58863;--board-border: rgba(74, 52, 35, .45);--board-coord: rgba(184, 146, 62, .55);--board-vignette: radial-gradient(ellipse at 50% 50%, transparent 60%, rgba(42, 29, 20, .55) 100%);--btn-primary-bg: var(--brass-500);--btn-primary-text: var(--walnut-950);--btn-primary-hover-bg: #C9A84E;--piece-shadow: rgba(184, 146, 62, .3);--noise-opacity: .03;--radius-board: 5px;--radius-card: 8px;--radius-button: 6px;--hero-square-light: var(--ivory-100);--hero-square-dark: var(--walnut-800)}[data-theme=light]{--walnut-950: #2A1D14;--walnut-800: #4A3423;--ivory-100: #EDE3CF;--brass-500: #B8923E;--oxblood-600: #7A2E2E;--sage-600: #6B8F5C;--bg-base: #F5EFE3;--bg-surface: #EDE3CF;--bg-card: #E8DCC6;--bg-elevated: #E0D4BC;--ivory: #2A1D14;--ivory-dim: #4A3423;--text-primary: #2A1D14;--text-muted: #6B5A48;--gold: var(--brass-500);--gold-dim: #8F6F2E;--gold-light: #8F6F2E;--silver: #6B5A48;--steel: #C8B89A;--muted: #6B5A48;--border-subtle: rgba(74, 52, 35, .3);--border-gold: rgba(184, 146, 62, .4);--border-walnut: rgba(74, 52, 35, .3);--nav-link: rgba(42, 29, 20, .55);--hero-gradient: linear-gradient(135deg, #F5EFE3 0%, #EDE3CF 50%, #F5EFE3 100%);--board-light: #EDE0C8;--board-dark: #B58863;--board-border: rgba(74, 52, 35, .35);--board-coord: rgba(42, 29, 20, .55);--board-vignette: radial-gradient(ellipse at 50% 50%, transparent 60%, rgba(245, 239, 227, .5) 100%);--btn-primary-bg: var(--brass-500);--btn-primary-text: #2A1D14;--btn-primary-hover-bg: #8F6F2E;--piece-shadow: rgba(74, 52, 35, .25);--noise-opacity: .02;--radius-board: 5px;--radius-card: 8px;--radius-button: 6px;--hero-square-light: #E5D9BF;--hero-square-dark: var(--walnut-800)}:root{--font-serif: "Source Serif 4", Georgia, serif;--font-sans: "Inter", system-ui, sans-serif;color-scheme:dark}[data-theme=light] body{background-color:var(--bg-base);color:var(--ivory)}[data-theme=light] .noise-overlay{opacity:.015}[data-theme=light]{color-scheme:light}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background-color:var(--bg-base);color:var(--text-primary);font-family:var(--font-sans);font-weight:300;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden;transition:background-color .3s ease,color .3s ease}@keyframes heroPieceDrop{0%{opacity:0;transform:translateY(-52px) scale(.92)}to{opacity:1;transform:translateY(0) scale(1)}}.hero-board.board-container{animation:none;opacity:1;border-radius:var(--radius-board);overflow:hidden;border:1px solid var(--border-walnut)}.hero-board .piece-white,.hero-board .piece-black{opacity:0;animation:heroPieceDrop .45s cubic-bezier(.22,1,.36,1) forwards;animation-delay:var(--delay, 0s)}.hero-board .piece-white .chess-piece-inner,.hero-board .piece-black .chess-piece-inner{animation:none}.hero-board .piece-white .chess-piece-inner{filter:drop-shadow(0 1px 1px rgba(42,29,20,.4))}.hero-board .piece-black .chess-piece-inner{filter:drop-shadow(0 0 1.5px rgba(237,227,207,.55))}.hero-board .chess-piece-inner:hover{transform:none;filter:inherit}.landing-hero{position:relative;height:100vh;height:100dvh;max-height:100vh;max-height:100dvh;display:flex;flex-direction:column;overflow:hidden;background:var(--hero-gradient)}.landing-hero__glow{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none}.landing-hero__glow--brass{background:radial-gradient(ellipse 80% 60% at 70% 50%,rgba(184,146,62,.06) 0%,transparent 70%)}.landing-hero__glow--walnut{background:radial-gradient(ellipse 60% 80% at 20% 50%,rgba(74,52,35,.06) 0%,transparent 70%)}.landing-hero__nav{flex:0 0 auto;position:relative;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:clamp(.85rem,2.2vh,1.75rem) clamp(1.25rem,3vw,3rem)}.landing-hero__main{flex:1 1 auto;min-height:0;width:100%;max-width:1400px;margin:0 auto;padding:0 clamp(1.25rem,3vw,3rem);display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:clamp(1rem,2vw,2rem);position:relative;z-index:10;overflow:visible}.landing-hero__copy{position:relative;z-index:2;min-width:0}.landing-hero__headline{font-size:clamp(2.35rem,4.6vw,5rem);margin:0 0 clamp(.75rem,2vh,1.75rem);line-height:1.08}.landing-hero__subcopy{font-size:1rem;max-width:420px;margin:0 0 clamp(1rem,2.4vh,2.25rem)}.landing-hero__cta{margin:0}.landing-hero__social{margin-top:clamp(1rem,2.8vh,2.5rem)}.landing-hero__board-col{position:relative;display:flex;justify-content:center;align-items:center;min-height:0;min-width:0;height:100%;width:100%;overflow:visible}.landing-hero__board-stage{position:relative;display:inline-block;overflow:visible;flex-shrink:0}.landing-hero__ai-card{position:absolute;right:0;left:auto;top:calc(100% + 12px);bottom:auto;width:168px;max-width:168px;background:var(--bg-card);border:1px solid var(--border-gold);padding:.55rem .7rem;z-index:4;box-shadow:inset 0 1px #ffffff0d;pointer-events:none;animation:fadeIn 1s ease 2s both}.landing-hero__ai-card-body{display:flex;gap:.4rem;align-items:flex-start}.landing-hero__ai-card-title{font-family:var(--font-sans);font-size:.62rem;font-weight:600;color:var(--gold);letter-spacing:.1em;text-transform:uppercase;margin:0 0 .2rem;line-height:1.2}.landing-hero__ai-card-text{font-family:var(--font-sans);font-size:.7rem;color:var(--ivory-dim);line-height:1.4;margin:0}.landing-hero__ai-card-pointer{position:absolute;top:-7px;left:50%;transform:translate(-50%);width:0;height:0;border-left:7px solid transparent;border-right:7px solid transparent;border-bottom:7px solid var(--bg-card)}.landing-hero__ai-card-pointer-border{position:absolute;top:-8px;left:50%;transform:translate(-50%);width:0;height:0;border-left:8px solid transparent;border-right:8px solid transparent;border-bottom:8px solid var(--border-gold);z-index:-1}.landing-hero__elo{position:absolute;top:0;right:100%;left:auto;margin-right:14px;background:var(--bg-card);border:1px solid var(--border-gold);padding:.65rem .85rem;display:flex;flex-direction:column;align-items:center;z-index:4;pointer-events:none;animation:fadeIn 1s ease 2.2s both}@media (max-height: 900px){.landing-hero__ai-card{width:152px;max-width:152px;padding:.45rem .6rem;top:calc(100% + 8px)}.landing-hero__ai-card-text{font-size:.65rem;line-height:1.35}.landing-hero__elo{margin-right:10px;padding:.5rem .7rem}}@media (max-height: 820px){.landing-hero__ai-card{width:144px;max-width:144px;top:calc(100% + 6px)}.landing-hero__ai-card-text{font-size:.62rem}}.landing-hero__scroll{flex:0 0 auto;position:relative;z-index:10;display:flex;flex-direction:column;align-items:center;gap:.35rem;padding-bottom:clamp(.6rem,1.5vh,1.25rem);padding-top:.25rem}@media (max-width: 900px){.landing-hero__main{grid-template-columns:1fr;align-content:center}.landing-hero__board-col{display:none}}@keyframes floatInLeft{0%{opacity:0;transform:translate(-60px) translateY(10px)}to{opacity:1;transform:translate(0) translateY(0)}}@keyframes floatInRight{0%{opacity:0;transform:translate(60px) translateY(10px)}to{opacity:1;transform:translate(0) translateY(0)}}@keyframes pieceBreathe{0%,to{transform:scale(1)}50%{transform:scale(1.03)}}@keyframes fadeUp{0%{opacity:0;transform:translateY(32px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes shimmerMove{0%{background-position:-200% center}to{background-position:200% center}}@keyframes cursorBlink{0%,to{opacity:1}50%{opacity:0}}@keyframes boardReveal{0%{opacity:0;transform:scale(.96) rotate(-1deg)}to{opacity:1;transform:scale(1) rotate(0)}}.piece-white{opacity:0;animation:floatInLeft .8s cubic-bezier(.22,1,.36,1) forwards;animation-delay:var(--delay, 0s)}.piece-black{opacity:0;animation:floatInRight .8s cubic-bezier(.22,1,.36,1) forwards;animation-delay:var(--delay, .4s)}.piece-white .chess-piece-inner{animation:pieceBreathe 3s ease-in-out calc(var(--delay, 0s) + .8s) infinite}.piece-black .chess-piece-inner{animation:pieceBreathe 3s ease-in-out calc(var(--delay, .4s) + .8s) infinite}.chess-piece-inner{display:block;width:100%;height:auto;transition:transform .25s cubic-bezier(.34,1.56,.64,1),filter .25s ease}.chess-piece-inner:hover{transform:translateY(-6px);filter:drop-shadow(0 12px 20px var(--piece-shadow))}a.btn-primary,a.btn-outline{text-decoration:none}.btn-primary{background:var(--btn-primary-bg);color:var(--btn-primary-text);font-family:var(--font-sans);font-weight:500;font-size:.875rem;letter-spacing:.08em;text-transform:uppercase;padding:.875rem 2rem;border:1px solid var(--border-walnut);border-radius:var(--radius-button);cursor:pointer;position:relative;overflow:hidden;transition:transform .2s ease,border-color .3s ease,background-color .3s ease,color .3s ease;display:inline-flex;align-items:center;gap:.5rem}.btn-primary:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(90deg,transparent 0%,rgba(255,255,255,.4) 50%,transparent 100%);background-size:200% auto;background-position:-200% center;transition:background-position .6s ease}.btn-primary:hover{transform:translateY(-2px);background:var(--btn-primary-hover-bg);border-color:#b8923e8c}.btn-primary:hover:after{background-position:200% center}.btn-outline{background:transparent;color:var(--ivory);font-family:var(--font-sans);font-weight:400;font-size:.875rem;letter-spacing:.08em;text-transform:uppercase;padding:.875rem 2rem;border:1px solid var(--border-walnut);border-radius:var(--radius-button);cursor:pointer;transition:border-color .3s ease,color .3s ease,transform .2s ease,background-color .3s ease;display:inline-flex;align-items:center;gap:.5rem}.btn-outline:hover{border-color:var(--gold);color:var(--gold-light);transform:translateY(-2px)}.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:2.25rem;height:2.25rem;padding:0;border:1px solid var(--border-subtle);border-radius:50%;background:transparent;color:var(--ivory);cursor:pointer;transition:border-color .3s ease,color .3s ease,background-color .3s ease,opacity .3s ease}.theme-toggle:hover{border-color:var(--gold);color:var(--gold-light)}.theme-toggle__icon{display:flex;align-items:center;justify-content:center;opacity:1;transition:opacity .3s ease}.gold-line{display:block;width:40px;height:2px;background:linear-gradient(90deg,var(--gold),var(--gold-light));margin-bottom:1.5rem}.section-label{font-family:var(--font-sans);font-size:.7rem;font-weight:500;letter-spacing:.2em;text-transform:uppercase;color:var(--gold)}.serif-heading{font-family:var(--font-serif);font-weight:400;line-height:1.1}.board-container{animation:boardReveal 1.2s cubic-bezier(.22,1,.36,1) .3s forwards;opacity:0;border-radius:var(--radius-board)}.reveal{opacity:0;transform:translateY(32px);transition:opacity .7s ease,transform .7s ease}.reveal.visible{opacity:1;transform:translateY(0)}.reveal-delay-1{transition-delay:.1s}.reveal-delay-2{transition-delay:.22s}.reveal-delay-3{transition-delay:.38s}.text-gold-gradient{background:linear-gradient(135deg,var(--gold-light) 0%,var(--gold) 60%,var(--gold-dim) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.chat-cursor{display:inline-block;width:2px;height:1.1em;background:var(--gold);margin-left:2px;vertical-align:text-bottom;animation:cursorBlink 1s step-end infinite}.noise-overlay{position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:0;opacity:var(--noise-opacity);background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");transition:opacity .3s ease}.theme-transition{transition:background-color .3s ease,color .3s ease,border-color .3s ease}.analyze-tab{position:relative;padding:.6rem 1rem;font-family:var(--font-sans);font-size:.78rem;font-weight:500;letter-spacing:.04em;color:var(--muted);background:transparent;border:none;cursor:pointer;transition:color .2s ease}.analyze-tab:after{content:"";position:absolute;bottom:0;left:0;right:0;height:2px;background:transparent;transition:background .2s ease}.analyze-tab:hover{color:var(--ivory-dim)}.analyze-tab--active{color:var(--gold-light)}.analyze-tab--active:after{background:var(--gold)}.analyze-scroll::-webkit-scrollbar{width:5px}.analyze-scroll::-webkit-scrollbar-track{background:transparent}.analyze-scroll::-webkit-scrollbar-thumb{background:#b8923e33;border-radius:99px}.analyze-scroll::-webkit-scrollbar-thumb:hover{background:#b8923e59}.mq-toggle{-webkit-appearance:none;-moz-appearance:none;appearance:none;font-family:var(--font-sans);font-size:.8125rem;font-weight:600;letter-spacing:.02em;line-height:1;padding:.7rem 1.1rem;border-radius:var(--radius-button);border:1px solid rgba(74,52,35,.55);background:transparent;color:#ede3cf9e;cursor:pointer;box-shadow:inset 0 1px #ffffff0a;transition:background-color .15s ease,border-color .15s ease,color .15s ease,transform .12s ease,filter .15s ease}.mq-toggle:hover{color:var(--ivory-100);border-color:#b8923e66;filter:brightness(1.08)}.mq-toggle:active{transform:scale(.98);filter:brightness(.95)}.mq-toggle--active{background:var(--brass-500);border-color:var(--brass-500);color:var(--walnut-950);box-shadow:inset 0 1px #ffffff2e}.mq-toggle--active:hover{color:var(--walnut-950);filter:brightness(1.06);border-color:var(--brass-500)}.mq-chip{display:inline-flex;align-items:center;gap:.35rem;padding:.5rem .75rem;border-radius:var(--radius-button);font-family:var(--font-sans);font-size:.8125rem;font-weight:600;line-height:1;letter-spacing:.01em;border:1px solid rgba(237,227,207,.14);box-shadow:inset 0 1px #ffffff0f;cursor:default;transition:filter .15s ease,transform .12s ease}.mq-chip:hover{filter:brightness(1.08)}.mq-chip:active{transform:scale(.98)}.btn-secondary-action{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--font-sans);font-size:.875rem;font-weight:600;letter-spacing:.02em;line-height:1;padding:.7rem 1.15rem;border-radius:var(--radius-button);border:1px solid rgba(74,52,35,.55);background:#b8923e1a;color:var(--gold-light);cursor:pointer;box-shadow:inset 0 1px #ffffff0d;transition:background-color .15s ease,border-color .15s ease,color .15s ease,transform .12s ease,filter .15s ease}.btn-secondary-action:hover{background:#b8923e2e;border-color:#b8923e73;color:var(--ivory-100);filter:brightness(1.05)}.btn-secondary-action:active{transform:scale(.98);filter:brightness(.96)}.quality-tag{display:inline-flex;align-items:center;padding:.4rem .7rem;border-radius:999px;font-family:var(--font-sans);font-size:.75rem;font-weight:600;letter-spacing:.03em;text-transform:capitalize;line-height:1;border:1px solid rgba(237,227,207,.16);box-shadow:inset 0 1px #ffffff12;transition:filter .15s ease,transform .12s ease}.quality-tag:hover{filter:brightness(1.08)}.quality-tag:active{transform:scale(.98)}.move-dot{display:inline-block;width:8px;height:8px;border-radius:50%;flex-shrink:0}.move-dot--brilliant{background:var(--sage-600)}.move-dot--great{background:#64b4ff}.move-dot--best{background:var(--sage-600)}.move-dot--excellent{background:#86efac}.move-dot--good{background:var(--brass-500)}.move-dot--inaccuracy{background:#eab308}.move-dot--mistake{background:#f97316}.move-dot--blunder{background:var(--oxblood-600)}.analyze-drawer-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:40;opacity:0;pointer-events:none;transition:opacity .3s ease}.analyze-drawer-overlay--open{opacity:1;pointer-events:auto}.analyze-drawer{position:fixed;top:0;right:0;bottom:0;width:min(400px,92vw);background:var(--bg-card);border-left:1px solid var(--border-walnut);z-index:41;transform:translate(100%);transition:transform .35s cubic-bezier(.22,1,.36,1);display:flex;flex-direction:column}.analyze-drawer--open{transform:translate(0)}@keyframes autoplayPulse{0%,to{opacity:1}50%{opacity:.5}}.autoplay-active{animation:autoplayPulse 1s ease-in-out infinite}@keyframes typingBounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-4px)}}.typing-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--gold);animation:typingBounce 1.4s ease-in-out infinite}.typing-dot:nth-child(2){animation-delay:.16s}.typing-dot:nth-child(3){animation-delay:.32s}.eval-graph-container{position:relative;width:100%;height:80px;border-radius:var(--radius-card);overflow:hidden;background:var(--bg-surface);border:1px solid var(--border-walnut)}.panel-card,.ui-card{border:1px solid var(--border-walnut);border-radius:var(--radius-card);box-shadow:none}html.board-workspace,html.board-workspace body{height:100%;height:100dvh;overflow:hidden}.app-shell--board-workspace{height:100vh;height:100dvh}.board-page-layout{display:flex;width:100%;height:100%;max-height:100%;overflow:hidden;background:var(--bg-base)}.board-page-layout__board-col{flex:1 1 auto;min-width:0;min-height:0;height:100%;display:flex;flex-direction:column;align-items:center;overflow:hidden;padding:12px 16px}.board-page-layout__header{flex:0 0 auto;width:100%;max-width:min(72vh,720px);margin-bottom:.5rem}.board-page-layout__stage{position:relative;flex:1 1 auto;min-height:0;width:100%;max-width:min(72vh,720px);display:flex;align-items:stretch;justify-content:center;overflow:hidden}.board-page-layout__above{position:absolute;top:0;left:0;right:0;z-index:4;pointer-events:none}.board-page-layout__above>*{pointer-events:auto}.board-page-layout__board{width:100%;height:100%;min-height:0;display:flex;justify-content:center;align-items:stretch}.board-page-layout__below{flex:0 0 auto;width:100%;max-width:min(72vh,720px);margin-top:.5rem;overflow:visible}.board-page-layout__side{flex:0 0 auto;height:100%;min-height:0;display:flex;flex-direction:column;overflow:hidden;border-left:1px solid var(--border-walnut);background:var(--bg-card)}.board-page-layout__side>*{flex:1 1 auto;min-height:0;height:100%;overflow:hidden}.app-shell--board-workspace .board-page-layout{height:100%}@media (max-width: 1023px){.board-page-layout{flex-direction:column}.board-page-layout__side{width:100%!important;min-width:0!important;height:auto;max-height:42%;border-left:none;border-top:1px solid var(--border-walnut)}.board-page-layout--hide-side-mobile .board-page-layout__side{display:none}}@media (prefers-reduced-motion: reduce){.piece-white,.piece-black,.hero-board .piece-white,.hero-board .piece-black{opacity:1!important;animation:none!important;transform:none!important}.piece-white .chess-piece-inner,.piece-black .chess-piece-inner,.hero-board .piece-white .chess-piece-inner,.hero-board .piece-black .chess-piece-inner{animation:none!important}.chess-piece-inner:hover{transform:none!important;filter:none!important}.reveal{opacity:1;transform:none;transition:none}.btn-primary,.btn-outline,.theme-toggle,body{transition:none!important}.board-container,.hero-board.board-container{animation:none;opacity:1}}@media (max-width: 900px){.pricing-grid{grid-template-columns:1fr!important}}.hover\:border-\[rgba\(184\,146\,62\,0\.35\)\]:hover{border-color:#b8923e59}.hover\:bg-\[rgba\(184\,146\,62\,0\.06\)\]:hover{background-color:#b8923e0f}.hover\:bg-\[rgba\(184\,146\,62\,0\.08\)\]:hover{background-color:#b8923e14}.hover\:bg-\[rgba\(184\,146\,62\,0\.12\)\]:hover{background-color:#b8923e1f}.hover\:bg-\[rgba\(184\,146\,62\,0\.22\)\]:hover{background-color:#b8923e38}.hover\:text-\[var\(--gold-light\)\]:hover{color:var(--gold-light)}.hover\:text-\[var\(--ivory-dim\)\]:hover{color:var(--ivory-dim)}.focus\:border-\[var\(--gold\)\]:focus{border-color:var(--gold)}.disabled\:opacity-40:disabled{opacity:.4}.disabled\:opacity-50:disabled{opacity:.5}@media (min-width: 768px){.md\:block{display:block}.md\:p-8{padding:2rem}.md\:text-4xl{font-size:2.25rem;line-height:2.5rem}}@media (min-width: 1024px){.lg\:bottom-6{bottom:1.5rem}.lg\:right-\[400px\]{right:400px}.lg\:hidden{display:none}}