@font-face{font-family:Rubik Variable;font-style:normal;font-display:swap;font-weight:300 900;src:url(./rubik-arabic-wght-normal-CGnJ-sf6.woff2) format("woff2-variations");unicode-range:U+0600-06FF,U+0750-077F,U+0870-088E,U+0890-0891,U+0897-08E1,U+08E3-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FE74,U+FE76-FEFC,U+102E0-102FB,U+10E60-10E7E,U+10EC2-10EC4,U+10EFC-10EFF,U+1EE00-1EE03,U+1EE05-1EE1F,U+1EE21-1EE22,U+1EE24,U+1EE27,U+1EE29-1EE32,U+1EE34-1EE37,U+1EE39,U+1EE3B,U+1EE42,U+1EE47,U+1EE49,U+1EE4B,U+1EE4D-1EE4F,U+1EE51-1EE52,U+1EE54,U+1EE57,U+1EE59,U+1EE5B,U+1EE5D,U+1EE5F,U+1EE61-1EE62,U+1EE64,U+1EE67-1EE6A,U+1EE6C-1EE72,U+1EE74-1EE77,U+1EE79-1EE7C,U+1EE7E,U+1EE80-1EE89,U+1EE8B-1EE9B,U+1EEA1-1EEA3,U+1EEA5-1EEA9,U+1EEAB-1EEBB,U+1EEF0-1EEF1}@font-face{font-family:Rubik Variable;font-style:normal;font-display:swap;font-weight:300 900;src:url(./rubik-cyrillic-ext-wght-normal-BjodpZir.woff2) format("woff2-variations");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Rubik Variable;font-style:normal;font-display:swap;font-weight:300 900;src:url(./rubik-cyrillic-wght-normal-DveCct9I.woff2) format("woff2-variations");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:Rubik Variable;font-style:normal;font-display:swap;font-weight:300 900;src:url(./rubik-hebrew-wght-normal-BIkpbuMU.woff2) format("woff2-variations");unicode-range:U+0307-0308,U+0590-05FF,U+200C-2010,U+20AA,U+25CC,U+FB1D-FB4F}@font-face{font-family:Rubik Variable;font-style:normal;font-display:swap;font-weight:300 900;src:url(./rubik-latin-ext-wght-normal-OacczzuJ.woff2) format("woff2-variations");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Rubik Variable;font-style:normal;font-display:swap;font-weight:300 900;src:url(./rubik-latin-wght-normal-CnQIisVs.woff2) format("woff2-variations");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Nunito Sans Variable;font-style:normal;font-display:swap;font-weight:200 1000;src:url(./nunito-sans-cyrillic-ext-wght-normal-7w74d1lj.woff2) format("woff2-variations");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Nunito Sans Variable;font-style:normal;font-display:swap;font-weight:200 1000;src:url(./nunito-sans-cyrillic-wght-normal-B9hoeQUC.woff2) format("woff2-variations");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:Nunito Sans Variable;font-style:normal;font-display:swap;font-weight:200 1000;src:url(./nunito-sans-vietnamese-wght-normal-BhFYcaJr.woff2) format("woff2-variations");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Nunito Sans Variable;font-style:normal;font-display:swap;font-weight:200 1000;src:url(./nunito-sans-latin-ext-wght-normal-DMEAsnHD.woff2) format("woff2-variations");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Nunito Sans Variable;font-style:normal;font-display:swap;font-weight:200 1000;src:url(./nunito-sans-latin-wght-normal-BWQ3gi2K.woff2) format("woff2-variations");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{color-scheme:light;--color-background: #f6f8fc;--color-surface: #fcfcfd;--color-elevated: #fff;--color-ink: #172c4b;--color-muted-ink: #43536b;--color-border: #d8e0ea;--color-accent: #172c4b;--color-accent-pressed: #0e1d34;--color-danger: #172c4b;--color-info: #172c4b;--color-board-light: #e8d6aa;--color-board-dark: #5c866d;--color-board-gold: #f3c969;--font-display: "Rubik Variable", Rubik, sans-serif;--font-body: "Nunito Sans Variable", "Nunito Sans", sans-serif;--font-utility: "Rubik Variable", Rubik, sans-serif;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--elevation-sm: 0 1px 2px rgb(23 44 75 / 8%);--elevation-md: 0 8px 24px rgb(23 44 75 / 12%);--elevation-lg: 0 18px 48px rgb(23 44 75 / 16%);--motion-fast: .12s;--motion-base: .22s;--motion-emphasis: .42s;--ease-out: cubic-bezier(.16, 1, .3, 1)}*{box-sizing:border-box}html{min-width:320px;background:var(--color-background)}body{min-width:320px;margin:0;background:var(--color-background);color:var(--color-ink);font-family:var(--font-body);font-size:16px;line-height:1.55}button,input,textarea,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed}a{color:inherit}:focus-visible{outline:3px solid var(--color-accent);outline-offset:3px}#root{min-height:100svh;display:flex;justify-content:center;padding:24px 16px calc(24px + env(safe-area-inset-bottom))}.main-menu,.game-container{width:min(100%,640px)}.main-menu{display:flex;flex-direction:column;align-items:stretch;gap:24px;padding:24px 0;animation:menu-enter var(--motion-base) var(--ease-out)}.wordmark{text-align:center}.wordmark-lockup{display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:8px}.wordmark-logo{display:block;width:clamp(3.75rem,7.5vw,5.75rem);height:auto;max-height:8rem;object-fit:contain;object-position:center bottom}.wordmark h1{margin:0;color:var(--color-ink);font-family:var(--font-display);font-size:clamp(3rem,9vw,4.75rem);font-weight:900;letter-spacing:-.02em;line-height:.98;text-wrap:balance}.wordmark--en h1,.wordmark--de h1{font-size:clamp(2.7rem,8vw,4.25rem)}.wordmark p{max-width:28rem;margin:14px auto 0;color:var(--color-muted-ink);font-size:1.0625rem}.language-selector{position:relative;align-self:center;width:min(100%,300px);z-index:10}.language-trigger{width:100%;min-height:44px;display:flex;align-items:center;justify-content:space-between;gap:8px;padding:9px 12px;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-ink);box-shadow:var(--elevation-sm);font-weight:700;text-align:left}.language-value{display:inline-flex;min-width:0;align-items:center;gap:10px}.language-flag{display:block;width:24px;height:16px;flex:0 0 24px;overflow:hidden;border:1px solid rgb(23 44 75 / 18%);border-radius:2px;box-shadow:0 1px 1px #172c4b1f;object-fit:cover}.language-trigger:hover{border-color:var(--color-accent)}.language-menu{position:absolute;top:calc(100% + 8px);left:0;width:100%;overflow:hidden;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-elevated);box-shadow:var(--elevation-md)}.language-menu button{width:100%;min-height:44px;display:flex;align-items:center;gap:10px;padding:10px 12px;border:0;border-bottom:1px solid var(--color-border);background:transparent;color:var(--color-ink);font-weight:700;text-align:left}.language-menu button:last-child{border-bottom:0}.language-menu button:hover{background:var(--color-background)}.language-menu button.is-selected{color:var(--color-accent);background:#edf0f4}.menu-actions{display:grid;gap:12px;margin-bottom:8px}.mode-action,.button{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:var(--radius-md);padding:12px 16px;font-weight:800;line-height:1.25;text-decoration:none;transition:background-color var(--motion-fast) var(--ease-out),border-color var(--motion-fast) var(--ease-out),transform var(--motion-fast) var(--ease-out),box-shadow var(--motion-fast) var(--ease-out)}.mode-action{position:relative;width:100%;border:1px solid var(--color-border);font-size:1.125rem}.mode-action:hover,.button:hover:not(:disabled){transform:translateY(-1px)}.mode-action:active,.button:active:not(:disabled){transform:translateY(0)}.mode-action--primary,.button--primary{border-color:var(--color-accent);background:var(--color-accent);color:#fff;box-shadow:var(--elevation-sm)}.mode-action--primary:hover,.button--primary:hover:not(:disabled){border-color:var(--color-accent-pressed);background:var(--color-accent-pressed)}.mode-action--secondary,.button--secondary{border-color:var(--color-border);background:var(--color-elevated);color:var(--color-ink)}.mode-action--secondary:hover,.button--secondary:hover:not(:disabled){border-color:var(--color-accent);background:#f4f5f7}.button--tertiary{min-height:44px;padding:10px 12px;border:1px solid transparent;background:transparent;color:var(--color-muted-ink);font-weight:700}.button--tertiary:hover{border-color:var(--color-border);background:var(--color-surface);color:var(--color-ink)}.button:disabled{border-color:var(--color-border);background:#eef1f5;color:#69778a;box-shadow:none}.project-friend{display:flex;align-items:stretch;gap:16px;padding:16px;border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--elevation-sm);text-align:left}.project-friend-image-link{display:block;flex:0 0 132px;min-height:142px;overflow:hidden;border-radius:var(--radius-md);background:var(--color-accent)}.project-friend-image{width:100%;height:100%;display:block;object-fit:cover;transition:transform var(--motion-base) var(--ease-out)}.project-friend-image-link:hover .project-friend-image{transform:scale(1.04)}.project-friend-content{min-width:0}.project-friend-eyebrow{margin:0 0 2px;color:var(--color-info);font:700 .75rem/1.3 var(--font-utility);letter-spacing:.06em;text-transform:uppercase}.project-friend h2,.about-shahic h2{margin:0;font:800 1.25rem/1.25 var(--font-display)}.project-friend p:not(.project-friend-eyebrow),.about-shahic p{max-width:62ch;margin:8px 0 0;color:var(--color-muted-ink)}.project-friend-link{display:inline-flex;align-items:center;gap:7px;min-height:44px;margin-top:10px;padding:9px 12px;border-radius:var(--radius-md);background:var(--color-accent);color:#fff;font-weight:800;text-decoration:none}.project-friend-link:hover{background:var(--color-accent-pressed)}.about-shahic{padding:0 2px;text-align:left}.about-shahic ul{margin:12px 0 0;padding-left:20px;color:var(--color-muted-ink)}.about-shahic li+li{margin-top:4px}.about-shahic details{margin-top:10px;padding-top:10px;border-top:1px solid var(--color-border)}.about-shahic summary{color:var(--color-ink);cursor:pointer;font-weight:800}.about-shahic details p{margin-bottom:0}.game-container{display:flex;flex-direction:column;align-items:stretch;gap:16px;padding:16px 0}.teacher-area{position:relative;width:min(100%,600px);align-self:center;display:flex;align-items:center;gap:12px;overflow:hidden;padding:12px 16px 12px 12px;border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--elevation-sm)}.teacher-avatar{width:56px;height:56px;flex:0 0 56px}.teacher-copy{min-width:0}.teacher-label{margin:0 0 2px;color:var(--color-info);font:700 .75rem/1.2 var(--font-utility);letter-spacing:.05em;text-transform:uppercase}.teacher-text{margin:0;color:var(--color-ink);font-size:1rem;font-weight:700}.teacher-area.is-thinking .teacher-avatar{opacity:.72;transition:opacity var(--motion-base) var(--ease-out)}.game-turn{margin:-4px 4px 0;color:var(--color-info);font:700 .875rem/1.4 var(--font-utility);letter-spacing:.04em;text-align:center;text-transform:uppercase}.game-turn.is-waiting{color:var(--color-muted-ink)}.board-with-coords{width:100%;max-width:600px;align-self:center}.board-main-row{display:flex;align-items:stretch;width:100%}.board-container{flex:1;display:grid;aspect-ratio:1;grid-template:repeat(8,1fr) / repeat(8,1fr);overflow:hidden;border:4px solid var(--color-ink);border-radius:var(--radius-sm);background:var(--color-board-light);box-shadow:var(--elevation-md)}.coord-row-top,.coord-row-bottom{display:grid;width:calc(100% - 40px);grid-template-columns:repeat(8,1fr);margin-left:20px;color:var(--color-ink);font:700 .75rem/1.2 var(--font-utility);letter-spacing:.04em;text-align:center}.coord-row-top{margin-bottom:4px}.coord-row-bottom{margin-top:4px}.coord-col-left,.coord-col-right{display:flex;width:20px;flex-direction:column;color:var(--color-ink);font:700 .75rem/1.2 var(--font-utility);text-align:center}.coord-col-left span,.coord-col-right span{display:grid;flex:1;place-items:center}.square{position:relative;display:grid;min-width:0;min-height:0;place-items:center;outline:0}.square.light{background:var(--color-board-light)}.square.dark{background:var(--color-board-dark)}.square.is-disabled,.square.is-disabled .piece{cursor:wait}.square.highlight{box-shadow:inset 0 0 0 4px var(--color-accent)}.square.last-move{box-shadow:inset 0 0 0 4px var(--color-board-gold)}.square.last-move.highlight{box-shadow:inset 0 0 0 4px var(--color-accent),inset 0 0 0 8px var(--color-board-gold)}.square.check{box-shadow:inset 0 0 0 4px var(--color-danger)}.square.valid-move:after{position:absolute;width:22%;aspect-ratio:1;border:3px solid var(--color-accent);border-radius:50%;background:#ffffff2e;content:"";pointer-events:none}.square.is-selected{box-shadow:inset 0 0 0 4px var(--color-accent)}.square.threatened{box-shadow:inset 0 0 0 4px var(--color-ink)}.square:focus-visible{z-index:2;outline:3px solid var(--color-accent);outline-offset:-3px}.piece{width:90%;height:90%;cursor:grab;background-position:center;background-repeat:no-repeat;background-size:contain;filter:drop-shadow(0 2px 1px rgb(23 44 75 / 16%));transition:transform var(--motion-fast) var(--ease-out),opacity var(--motion-fast) var(--ease-out);touch-action:none}.piece:hover{transform:scale(1.05)}.piece:active{cursor:grabbing;transform:scale(1.08)}.piece.is-disabled{cursor:wait}.controls{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}.controls .button{flex:1 1 180px}.return-to-menu{align-self:center}.game-end{padding:16px;border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-elevated);box-shadow:var(--elevation-sm);text-align:center}.game-end p{margin:0;font:800 1.25rem/1.3 var(--font-display)}.game-footer{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:4px;padding-top:8px;color:var(--color-muted-ink);font-size:.8125rem;text-align:center}.game-footer a{display:inline-flex;align-items:center;gap:4px;color:var(--color-info);font-weight:800;text-decoration-thickness:1px;text-underline-offset:3px}@keyframes menu-enter{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@media(max-width:639px){.project-friend{flex-direction:column}.project-friend-image-link{flex-basis:auto;height:160px}}@media(max-width:359px){.wordmark h1{font-size:2.7rem}.wordmark-logo{width:3.5rem}}@media(min-width:640px){#root{padding-right:24px;padding-left:24px}.main-menu{padding-top:40px}.game-container{padding-top:24px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:1ms!important;animation-iteration-count:1!important;transition-duration:1ms!important}}.promotion-overlay{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;padding:16px;background:#172c4b7a}.promotion-dialog{width:min(100%,440px);padding:24px;border:1px solid var(--color-border);border-radius:var(--radius-xl);background:var(--color-elevated);box-shadow:var(--elevation-lg);color:var(--color-ink)}.promotion-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.promotion-eyebrow{margin:0 0 4px;color:var(--color-muted-ink);font:700 .75rem/1.2 var(--font-utility);letter-spacing:.05em;text-transform:uppercase}.promotion-heading h2{margin:0;font:800 1.75rem/1.15 var(--font-display)}.promotion-close{display:grid;width:40px;height:40px;flex:0 0 40px;place-items:center;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-ink)}.promotion-dialog>p{margin:16px 0 20px;color:var(--color-muted-ink)}.promotion-options{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.promotion-option{display:flex;min-height:112px;flex-direction:column;align-items:center;justify-content:center;gap:2px;padding:8px 4px;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-ink);font-weight:800}.promotion-option:hover{border-color:var(--color-accent);background:var(--color-background)}.promotion-option img{display:block;width:64px;height:64px;object-fit:contain}.promotion-option span{font-size:.8125rem}.promotion-cancel{width:100%;margin-top:12px}@media(max-width:380px){.promotion-dialog{padding:20px 16px}.promotion-option{min-height:100px}.promotion-option img{width:56px;height:56px}.promotion-option span{font-size:.75rem}}