:root{--bg: #0f172a;--surface: rgba(30, 41, 59, 0.5);--surface-soft: rgba(30, 41, 59, 0.35);--border: rgba(148, 163, 184, 0.18);--border-strong: rgba(148, 163, 184, 0.35);--rule: #475569;--text: #94a3b8;--text-strong: #e2e8f0;--heading: #f1f5f9;--prose: #cbd5e1;--accent: #5eead4;--accent-bg: rgba(94, 234, 212, 0.1);--accent-ink: #0f172a;--warn: #fcd34d;--code-bg: #0b1120;--font-sans: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;--font-bn: "Hind Siliguri", "Noto Sans Bengali", Inter, system-ui, sans-serif;--radius: 8px;--radius-lg: 10px;--color-tint: #0b1222;--color-wash: #1a2540;--color-dark: #5eead4;--color-light: #0f766e;--color-secondary: #fbbf24;--color-primary: #5eead4;--shadow-md: 0 8px 24px rgba(2, 6, 23, 0.45);--shadow-lg: 0 12px 32px rgba(2, 6, 23, 0.55)}*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-sans);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}::selection{background:rgba(94,234,212,0.3);color:var(--heading)}a{color:var(--text-strong);text-decoration:none;transition:color 0.15s ease}a:hover,a:focus-visible{color:var(--accent)}:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}img{max-width:100%;height:auto}h1,h2,h3,h4,h5,h6{margin:0;color:var(--heading);line-height:1.25}p{margin:0}@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none !important;animation:none !important}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0, 0, 0, 0);white-space:nowrap;border:0}.skip-link{position:absolute;left:16px;top:-100px;z-index:100;padding:10px 16px;border-radius:6px;background:var(--accent);color:var(--accent-ink);font-weight:600}.skip-link:focus{top:16px;color:var(--accent-ink)}.icon{display:inline-block;width:1em;height:1em;flex:none}.spotlight{pointer-events:none;position:fixed;inset:0;z-index:0;background:radial-gradient(600px circle at var(--spot-x, 70%) var(--spot-y, 10%), rgba(29,78,216,0.13), transparent 80%)}.section-label{margin:0 0 24px;font-size:13px;font-weight:700;letter-spacing:0.12em;text-transform:uppercase;color:var(--text-strong)}.eyebrow{font-size:12px;font-weight:600;letter-spacing:0.06em;text-transform:uppercase;color:var(--text)}.pill-list{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 0;padding:0;list-style:none}.pill{padding:4px 12px;border-radius:999px;font-size:12px;font-weight:500;line-height:20px;color:var(--accent);background:var(--accent-bg)}.badge{display:inline-block;padding:1px 8px;border-radius:4px;border:1px solid var(--border-strong);font-size:11px;font-weight:600;line-height:18px;color:#cbd5e1;vertical-align:2px}.badge--solid{border-color:var(--accent);background:var(--accent);color:var(--accent-ink);letter-spacing:0.04em}.arrow-link{display:inline-flex;align-items:center;gap:8px;min-height:44px;font-size:15px;font-weight:600;color:var(--text-strong)}.arrow-link .icon{width:16px;height:16px;transition:transform 0.15s ease}.arrow-link:hover .icon{transform:translateX(4px)}.arrow-link--external:hover .icon{transform:translate(2px, -2px)}.btn{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 18px;border:1px solid var(--border-strong);border-radius:6px;font-size:14px;font-weight:500;color:var(--text-strong);transition:color 0.15s ease, border-color 0.15s ease, background 0.15s ease}.btn .icon{width:16px;height:16px}.btn:hover{border-color:var(--accent);color:var(--accent)}.btn--accent{border-color:var(--accent);color:var(--accent)}.btn--accent:hover{background:var(--accent-bg)}.socials{display:flex;flex-wrap:wrap;align-items:center;gap:4px;margin:0;padding:0;list-style:none}.social{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;color:var(--text)}.social .icon{width:22px;height:22px}.home{position:relative;z-index:1;max-width:1280px;margin:0 auto;padding:0 24px}@media (min-width: 768px){.home{padding:0 48px}}@media (min-width: 1024px){.home{display:flex;justify-content:space-between;gap:64px;padding:0 64px}}.home__header{display:flex;flex-direction:column;gap:32px;padding:64px 0 32px}@media (min-width: 1024px){.home__header{position:sticky;top:0;width:46%;height:100vh;padding:80px 0 56px;justify-content:space-between;overflow-y:auto;scrollbar-width:none}.home__header::-webkit-scrollbar{display:none}}.home__intro{display:flex;flex-direction:column;gap:14px}.home__photo{width:72px;height:72px;border-radius:50%;object-fit:cover;border:2px solid var(--border-strong)}.home__name{font-size:40px;line-height:1.1;font-weight:700;letter-spacing:-0.02em;color:var(--text-strong)}@media (min-width: 768px){.home__name{font-size:46px}}.home__name a{color:inherit}.home__role{font-size:20px;line-height:1.4;font-weight:500;color:var(--text-strong)}.home__pitch{max-width:340px}.home__nav{display:none}@media (min-width: 1024px){.home__nav{display:block;margin-top:40px}}.home__nav ul{margin:0;padding:0;list-style:none}.nav-link{display:flex;align-items:center;gap:16px;padding:8px 0;font-size:12px;font-weight:700;letter-spacing:0.12em;text-transform:uppercase;color:var(--text)}.nav-link::before{content:"";display:block;width:32px;height:1px;background:var(--rule);transition:width 0.15s ease, background 0.15s ease}.nav-link:hover,.nav-link:focus-visible,.nav-link.is-active{color:var(--text-strong)}.nav-link:hover::before,.nav-link:focus-visible::before,.nav-link.is-active::before{width:64px;background:var(--text-strong)}.home__actions{display:flex;flex-direction:column;gap:20px}.home__buttons{display:flex;flex-wrap:wrap;gap:12px}.home__links{display:flex;flex-wrap:wrap;align-items:center;gap:4px 12px}.home__main{padding:16px 0 64px}@media (min-width: 1024px){.home__main{width:54%;padding:80px 0 72px}}.home-section{margin-bottom:96px;scroll-margin-top:24px}@media (min-width: 1024px){.home-section{margin-bottom:120px;scroll-margin-top:80px}}@media (max-width: 1023px){.home-section__title{position:sticky;top:0;z-index:5;margin:0 -24px 16px;padding:16px 24px;background:rgba(15,23,42,0.8);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}}@media (min-width: 768px) and (max-width: 1023px){.home-section__title{margin:0 -48px 16px;padding:16px 48px}}@media (min-width: 1024px){.home-section__title--mobile{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0, 0, 0, 0);margin:-1px;padding:0}}.about p+p{margin-top:16px}.about a{font-weight:500;color:var(--text-strong)}.about a:hover{color:var(--accent)}.section-more{margin-top:24px}.stats{display:grid;grid-template-columns:repeat(2, minmax(0, 1fr));gap:12px;margin-bottom:40px}.stat{padding:20px;border-radius:var(--radius);border:1px solid var(--border)}.stat__value{font-size:30px;line-height:1.1;font-weight:700;color:var(--accent)}.stat__label{margin-top:6px;font-size:13px;line-height:1.45}.mini-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:14px}.mini-stat{padding:10px 16px;border-radius:var(--radius);border:1px solid var(--border)}.mini-stat__value{font-size:20px;line-height:1.2;font-weight:700;color:var(--accent)}.mini-stat__value small{font-size:13px;font-weight:500;color:var(--text)}.mini-stat__label{margin-top:2px;font-size:12px}.def-list{margin:0;display:flex;flex-direction:column;gap:20px}.def-row{display:flex;flex-wrap:wrap;gap:8px 24px}.def-row dt{flex:1 1 120px;padding-top:4px}.def-row dd{flex:999 1 320px;min-width:0;margin:0;font-size:14px;line-height:1.7}.def-row strong{font-weight:600;color:var(--text-strong)}.def-row .pill-list{margin:0}.plain-list{margin:0;padding:0;list-style:none}.plain-list li+li{margin-top:6px}.teaser{position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:20px 28px;padding:28px;border-radius:var(--radius-lg);border:1px dashed var(--border-strong);transition:border-color 0.15s ease, background 0.15s ease}.teaser:hover{border-color:var(--accent);background:var(--surface-soft)}.teaser__icon{flex:0 0 auto;width:64px;height:64px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--accent-ink);background:var(--accent)}.teaser__icon .icon{width:30px;height:30px}.teaser__body{flex:999 1 260px;display:flex;flex-direction:column;gap:4px}.teaser__title{font-size:18px;font-weight:600;color:var(--text-strong)}.teaser__title a{color:inherit}.teaser__title a::after{content:"";position:absolute;inset:0;border-radius:inherit}.teaser__text{font-size:14px;line-height:1.55}.teaser__cta{flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--accent)}.teaser__cta .icon{width:16px;height:16px}.home-footer{max-width:460px;font-size:13px;line-height:1.6}.home-footer a{font-weight:500}.card-list{display:flex;flex-direction:column;gap:12px;margin:0;padding:0;list-style:none}.card{position:relative;display:flex;flex-wrap:wrap;gap:8px 24px;padding:16px 0;border-radius:var(--radius);transition:background 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease}@media (min-width: 1024px){.card{margin:0 -24px;padding:20px 24px}.card:hover{background:var(--surface);box-shadow:inset 0 1px 0 rgba(148,163,184,0.1)}}@media (min-width: 1024px){.card-list:hover>.card:not(:hover){opacity:0.5}}.card__aside{flex:1 1 120px;padding-top:3px}.card__body{flex:999 1 320px;min-width:0}.card__thumb{flex:0 0 auto;width:120px;height:76px;border-radius:6px;border:1px solid var(--border);background:linear-gradient(135deg, #1e293b, #0f172a);display:flex;align-items:center;justify-content:center;color:var(--accent);transition:border-color 0.15s ease}.card__thumb .icon{width:28px;height:28px}.card:hover .card__thumb{border-color:var(--border-strong)}.card__title{font-size:16px;line-height:1.4;font-weight:500;color:var(--text-strong)}.card__link{color:var(--text-strong)}.card__link::after{content:"";position:absolute;inset:0;border-radius:inherit}.card__link .icon{width:14px;height:14px;margin-left:4px;vertical-align:-1px;transition:transform 0.15s ease}.card:hover .card__link,.card__link:focus-visible{color:var(--accent)}.card:hover .card__link .icon{transform:translate(2px, -2px)}.card:hover .card__link--internal .icon{transform:translateX(4px)}.card__roles{margin:4px 0 0;padding:0;list-style:none;font-size:14px;line-height:1.6;color:var(--text)}.card__roles span{font-size:13px}.card__text{margin-top:8px;font-size:14px;line-height:1.6}.card__text a{position:relative;z-index:1;color:var(--text-strong)}.card__text a:hover{color:var(--accent)}.card__meta{margin-top:6px;font-size:14px;line-height:1.6}.card__meta a{position:relative;z-index:1;color:var(--accent)}.card__links{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:0 20px;margin-top:4px}.card__links a{display:inline-flex;align-items:center;min-height:44px;font-size:14px;font-weight:500;color:var(--accent)}.feature-card{padding:28px;margin-bottom:24px;border-radius:var(--radius-lg);border:1px solid var(--border);background:var(--surface-soft)}.feature-card__meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;margin-bottom:12px}.feature-card__title{font-size:20px;line-height:1.35;font-weight:600;color:var(--text-strong)}.feature-card__title a{color:inherit}.feature-card__title a:hover{color:var(--accent)}.feature-card__authors{margin-top:8px;font-size:14px}.feature-card__authors b,.feature-card__authors strong{font-weight:600;color:var(--text-strong)}.feature-card__text{margin-top:14px;font-size:14px;line-height:1.6}.feature-card__links{display:flex;flex-wrap:wrap;gap:4px 20px;margin-top:12px}.feature-card__links a{display:inline-flex;align-items:center;gap:6px;min-height:44px;font-size:14px;font-weight:500}.feature-card__links a:first-child{font-weight:600;color:var(--accent)}.feature-card__links a .icon{width:14px;height:14px}.topbar{position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(148,163,184,0.15);background:rgba(15,23,42,0.85);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.topbar__inner,.page-wrap,.site-footer__inner{max-width:1180px;margin:0 auto;padding-left:24px;padding-right:24px}@media (min-width: 768px){.topbar__inner,.page-wrap,.site-footer__inner{padding-left:48px;padding-right:48px}}.topbar__inner{min-height:64px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:0 24px}.topbar__home{display:inline-flex;align-items:center;gap:10px;min-height:44px;font-size:15px;font-weight:600;color:var(--text-strong)}.topbar__home .icon{width:16px;height:16px;transition:transform 0.15s ease}.topbar__home:hover .icon{transform:translateX(-3px)}.topbar__nav ul{display:flex;flex-wrap:wrap;gap:0 24px;margin:0;padding:0;list-style:none;font-size:14px;font-weight:500}.topbar__nav a{display:inline-flex;align-items:center;min-height:44px;color:var(--text)}.topbar__nav a:hover,.topbar__nav a[aria-current="page"]{color:var(--accent)}.page-main{padding-bottom:96px}.page-header{max-width:760px;padding:64px 0 40px}.page-title{font-size:34px;line-height:1.15;font-weight:700;letter-spacing:-0.02em;color:var(--heading)}@media (min-width: 768px){.page-title{font-size:44px}}.page-lead{margin-top:16px;font-size:18px;line-height:1.6}.site-footer{border-top:1px solid rgba(148,163,184,0.15)}.site-footer__inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 24px;padding-top:28px;padding-bottom:28px;font-size:13px}.year-group{max-width:820px}.year-group+.year-group{margin-top:56px}.year-group__title{margin-bottom:12px;font-size:22px;font-weight:700;color:var(--text-strong)}.post-layout{display:flex;flex-wrap:wrap;align-items:flex-start;gap:0 72px}.post{flex:999 1 560px;min-width:0;max-width:720px;padding:56px 0 96px}.post__crumbs{margin-bottom:20px;font-size:13px;font-weight:600;letter-spacing:0.08em;text-transform:uppercase}.post__crumbs a{color:var(--text)}.post__crumbs a:hover{color:var(--accent)}.post__title{font-size:34px;line-height:1.15;font-weight:700;letter-spacing:-0.02em;color:var(--heading)}@media (min-width: 768px){.post__title{font-size:46px}}.post__lead{margin-top:18px;font-size:19px;line-height:1.55}.post__meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px 16px;margin-top:28px;padding-bottom:28px;border-bottom:1px solid rgba(148,163,184,0.15)}.post__meta .pill-list{margin:0}@media (min-width: 768px){.post__meta .pill-list{margin-left:auto}}.post__author{display:flex;align-items:center;gap:12px;font-size:14px;line-height:1.45}.post__author img{width:40px;height:40px;border-radius:50%;object-fit:cover}.post__author strong{display:block;font-weight:600;color:var(--text-strong)}.post__body{margin-top:40px}.post__source{display:flex;flex-wrap:wrap;align-items:center;gap:12px 16px;margin-top:56px;padding:20px 24px;border-radius:var(--radius-lg);border:1px solid var(--border);font-size:14px;line-height:1.6}.post__source .icon{width:20px;height:20px}.post__source span{flex:1 1 260px}.post__source a{font-weight:500;text-decoration:underline;text-underline-offset:3px}.post-nav{display:flex;flex-wrap:wrap;gap:16px;margin-top:32px}.post-nav__link{flex:1 1 260px;display:flex;flex-direction:column;gap:6px;padding:20px 24px;border-radius:var(--radius-lg);border:1px solid var(--border);transition:background 0.15s ease, border-color 0.15s ease}.post-nav__link:hover{background:var(--surface);border-color:var(--border-strong)}.post-nav__link--next{align-items:flex-end;text-align:right}.post-nav__title{font-size:16px;font-weight:600;color:var(--text-strong)}.post-nav__link:hover .post-nav__title{color:var(--accent)}.toc{display:none;flex:1 1 220px;min-width:0}@media (min-width: 1120px){.toc.has-items{display:block;position:sticky;top:88px;margin-top:132px;max-height:calc(100vh - 120px);overflow-y:auto;scrollbar-width:thin}}.toc__title{margin-bottom:14px;font-size:12px;font-weight:700;letter-spacing:0.12em;text-transform:uppercase;color:var(--text-strong)}.toc__list{margin:0;padding:0;list-style:none;border-left:1px solid rgba(148,163,184,0.2);font-size:14px;line-height:1.45}.toc__list a{display:block;margin-left:-1px;padding:6px 0 6px 16px;border-left:2px solid transparent;color:var(--text)}.toc__list a:hover{color:var(--text-strong)}.toc__list a.is-active{border-left-color:var(--accent);font-weight:500;color:var(--accent)}.toc__list .toc__sub a{padding-left:28px;font-size:13px}.toc__top{display:inline-flex;align-items:center;min-height:44px;margin-top:12px;font-size:13px;font-weight:500;color:var(--text)}.table-wrap{overflow-x:auto}.archive-table{width:100%;border-collapse:collapse;font-size:14px;text-align:left}.archive-table th{padding:0 16px 12px 0;border-bottom:1px solid rgba(148,163,184,0.2);font-size:12px;font-weight:600;letter-spacing:0.06em;text-transform:uppercase;color:var(--text-strong);white-space:nowrap}.archive-table td{padding:16px 16px 16px 0;border-bottom:1px solid rgba(148,163,184,0.1);vertical-align:top}.archive-table .archive-table__project{font-weight:600;color:var(--text-strong)}.archive-table .pill-list{margin:0}.archive-table a{display:inline-flex;align-items:center;gap:4px;white-space:nowrap}.archive-table a .icon{width:13px;height:13px}.prose{font-size:17px;line-height:1.8;color:var(--prose)}.prose>*+*{margin-top:22px}.prose>:first-child{margin-top:0}.prose h2,.prose h3,.prose h4{color:var(--heading);letter-spacing:-0.01em;scroll-margin-top:88px}.prose h2{margin-top:56px;font-size:26px;line-height:1.3;font-weight:700}.prose h3{margin-top:40px;font-size:20px;line-height:1.35;font-weight:600}.prose h2+*,.prose h3+*{margin-top:16px}.prose a{color:var(--accent);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}.prose a:hover{color:var(--heading)}.prose strong{color:var(--heading);font-weight:600}.prose ul,.prose ol{padding-left:22px}.prose ul ul,.prose ul ol,.prose ol ul,.prose ol ol{margin-top:6px}.prose li+li{margin-top:6px}.prose li::marker{color:var(--text)}.prose img{display:block;margin:32px auto;border-radius:var(--radius-lg);background:#fff}.prose blockquote{margin-left:0;margin-right:0;padding-left:20px;border-left:2px solid var(--accent);color:var(--text-strong)}.prose hr{margin:48px 0;border:0;border-top:1px solid var(--border)}.prose table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;font-size:15px}.prose th,.prose td{padding:10px 16px 10px 0;border-bottom:1px solid var(--border);text-align:left}.prose th{color:var(--text-strong)}.prose :not(pre)>code{padding:2px 6px;border-radius:4px;font-family:var(--font-mono);font-size:0.86em;color:var(--text-strong);background:rgba(148,163,184,0.15);overflow-wrap:anywhere}.prose pre{margin:0;padding:18px 20px;overflow-x:auto;font-family:var(--font-mono);font-size:14px;line-height:1.7;color:var(--text-strong);tab-size:4}.prose pre code{font:inherit;background:none;padding:0}.prose>pre,.prose .highlighter-rouge{border-radius:var(--radius-lg);border:1px solid var(--border);background:var(--code-bg);overflow:hidden}.prose .highlight{margin:0;background:none}[lang="bn"] .prose,.prose[lang="bn"]{font-family:var(--font-bn);font-size:18px;line-height:1.9}.code-bar{display:flex;align-items:center;justify-content:space-between;min-height:44px;padding:0 8px 0 18px;border-bottom:1px solid rgba(148,163,184,0.12);font-family:var(--font-sans);font-size:12px;font-weight:600;letter-spacing:0.06em;text-transform:uppercase;color:var(--text)}.code-bar__copy{display:inline-flex;align-items:center;gap:6px;min-height:36px;padding:0 12px;border:0;border-radius:6px;font:inherit;color:var(--text);background:transparent;cursor:pointer}.code-bar__copy:hover{color:var(--text-strong);background:rgba(148,163,184,0.1)}.code-bar__copy .icon{width:14px;height:14px}.highlight .c,.highlight .ch,.highlight .cd,.highlight .cm,.highlight .cpf,.highlight .c1,.highlight .cs{color:#94a3b8;font-style:italic}.highlight .cp{color:#94a3b8}.highlight .k,.highlight .kc,.highlight .kd,.highlight .kn,.highlight .kp,.highlight .kr,.highlight .kv{color:#c4b5fd}.highlight .kt{color:#7dd3fc}.highlight .s,.highlight .sa,.highlight .sb,.highlight .sc,.highlight .dl,.highlight .sd,.highlight .s2,.highlight .se,.highlight .sh,.highlight .si,.highlight .sx,.highlight .sr,.highlight .s1,.highlight .ss{color:#fcd34d}.highlight .m,.highlight .mb,.highlight .mf,.highlight .mh,.highlight .mi,.highlight .il,.highlight .mo{color:#fdba74}.highlight .nf,.highlight .fm,.highlight .nc,.highlight .nn{color:#7dd3fc}.highlight .nb,.highlight .bp,.highlight .na{color:#5eead4}.highlight .nt{color:#7dd3fc}.highlight .nv,.highlight .vc,.highlight .vg,.highlight .vi,.highlight .vm,.highlight .n,.highlight .nx{color:#e2e8f0}.highlight .o,.highlight .ow,.highlight .p{color:#cbd5e1}.highlight .gd{color:#fca5a5}.highlight .gi{color:#86efac}.highlight .gh,.highlight .gu{color:#7dd3fc;font-weight:600}.highlight .err{color:#fca5a5;background:none}.snake-heading{margin:0 0 16px;font-size:13px;font-weight:700;letter-spacing:0.12em;text-transform:uppercase;color:var(--text-strong)}.snake-game{display:flex;gap:24px;align-items:flex-start;max-width:760px}.snake-game-area{flex:0 0 auto;width:400px;max-width:100%}.snake-score-header{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;background:var(--surface);border:1px solid var(--border);border-bottom:0;border-radius:var(--radius) var(--radius) 0 0;font-weight:600;font-size:14px}.snake-score-label{color:var(--text-strong)}.snake-high-label{color:var(--accent)}.snake-canvas-wrap{position:relative;border:1px solid var(--border);border-radius:0 0 var(--radius) var(--radius);box-shadow:var(--shadow-md);overflow:hidden;line-height:0}.snake-canvas-wrap canvas{display:block;width:100%;height:auto;image-rendering:pixelated}.snake-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:normal;background:#0b1222;opacity:0;pointer-events:none;transition:opacity 0.25s ease}.snake-overlay.visible{opacity:1;pointer-events:auto}.snake-overlay-title{color:var(--heading);font-size:30px;font-weight:700;letter-spacing:-0.01em;margin-bottom:6px}.snake-overlay-score{color:var(--text);font-size:16px;margin-bottom:12px;min-height:1.3em}.snake-overlay-name-group{display:flex;flex-direction:column;align-items:center;margin-top:4px;margin-bottom:16px;width:80%;max-width:240px}.snake-overlay-name-label{color:var(--text);font-size:13px;margin-bottom:6px}.snake-overlay-name-input{width:100%;min-height:44px;padding:8px 12px;border:1px solid var(--border-strong);border-radius:6px;background:rgba(148,163,184,0.08);color:var(--heading);font:inherit;font-size:16px;font-weight:600;text-align:center;outline:none;transition:border-color 0.2s ease, background 0.2s ease}.snake-overlay-name-input::placeholder{color:var(--text);opacity:0.8}.snake-overlay-name-input:focus{border-color:var(--accent);background:rgba(148,163,184,0.12)}.snake-overlay-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 32px;background:var(--accent);color:var(--accent-ink);font:inherit;font-weight:700;font-size:15px;border:none;border-radius:6px;cursor:pointer;transition:transform 0.2s ease, box-shadow 0.2s ease}.snake-overlay-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(94,234,212,0.25)}.snake-leaderboard{flex:1;min-width:220px;background:var(--surface-soft);border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px;position:sticky;top:88px}.snake-leaderboard-title{display:flex;align-items:center;gap:8px;margin:0 0 12px;padding-bottom:12px;border-bottom:1px solid var(--border);font-size:13px;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;color:var(--text-strong)}.snake-leaderboard-list{list-style:none;margin:0;padding:0;max-height:400px;overflow-y:auto}.snake-leaderboard-entry{display:flex;align-items:center;padding:8px;border-radius:6px;margin-bottom:2px;font-size:14px;transition:background 0.15s ease}.snake-leaderboard-entry:hover{background:var(--surface)}.snake-leaderboard-entry.snake-leaderboard-mine{background:var(--accent-bg);font-weight:600}.snake-leaderboard-rank{flex:0 0 1.8em;font-weight:700;color:var(--accent);text-align:center}.snake-leaderboard-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--prose)}.snake-leaderboard-pts{flex:0 0 auto;font-weight:700;color:var(--text-strong);margin-left:8px;font-variant-numeric:tabular-nums}.snake-leaderboard-empty{color:var(--text);font-size:14px;text-align:center;padding:24px 8px}.snake-dpad{display:none;margin-top:16px}.snake-dpad-grid{display:grid;grid-template-areas:".  up  ." "lt .  rt" ".  dn  .";grid-template-columns:repeat(3, 56px);grid-template-rows:repeat(3, 56px);gap:6px;justify-content:center}.snake-dpad-btn{display:flex;align-items:center;justify-content:center;width:56px;height:56px;border:1px solid var(--border-strong);border-radius:var(--radius);background:var(--surface);color:var(--accent);font-size:20px;cursor:pointer;user-select:none;-webkit-tap-highlight-color:transparent;transition:background 0.15s ease, transform 0.1s ease}.snake-dpad-btn:active{background:var(--accent-bg);transform:scale(0.92)}#dpad-up{grid-area:up}#dpad-down{grid-area:dn}#dpad-left{grid-area:lt}#dpad-right{grid-area:rt}@media (pointer: coarse){.snake-dpad{display:flex;justify-content:center}}.snake-instructions{margin-top:16px;padding:12px 16px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;color:var(--text)}.snake-instructions strong{color:var(--text-strong)}.snake-instructions p{margin:4px 0}@media (max-width: 600px){.snake-game{flex-direction:column;align-items:stretch}.snake-game-area{width:100%}.snake-leaderboard{width:100%;position:static}}