/* HEYID.me: hand-written, no framework. Logical properties everywhere so RTL languages just work. */
:root{
  --ink:#0C2144; --muted:#455B7D; --paper:#F3F8FF; --tint:#E6F0FD; --card:#FFFFFF; --line:#D3E0F2;
  --ocean:#1A62D6; --ocean-dk:#1450B0; --sky:#22B8CF; --leaf:#3BA55C; --sun:#FFB020; --sun-ink:#3A2200;
  --sans:"Avenir Next","Segoe UI Variable Display","Segoe UI",system-ui,-apple-system,"Noto Sans",Roboto,sans-serif;
  --serif:Charter,"Iowan Old Style","Noto Serif",Georgia,"Times New Roman",serif;
}
@media (prefers-color-scheme:dark){
  :root{--ink:#EAF1FF;--muted:#A3B6D8;--paper:#07142B;--tint:#0B1D3C;--card:#0E2345;--line:#1F3862;--ocean:#3C86F5;--ocean-dk:#2F73DD}
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);font-size:1.0625rem;line-height:1.6;color:var(--ink);background:var(--paper);min-height:100vh;display:flex;flex-direction:column}
main{flex:1}
img{max-width:100%;height:auto}
a{color:var(--ocean);text-underline-offset:.18em}
h1,h2,h3{line-height:1.12;letter-spacing:-.025em;margin:0 0 .6rem}
h1{font-weight:800}h2{font-weight:800}h3{font-weight:700}
p{margin:0 0 1rem}
:focus-visible{outline:3px solid var(--sun);outline-offset:3px;border-radius:6px}
.skip{position:absolute;inset-inline-start:-999px;top:0;background:var(--sun);color:var(--sun-ink);padding:.6rem 1rem;z-index:99;font-weight:700}
.skip:focus{inset-inline-start:0}
.wrap{max-width:1120px;margin-inline:auto;padding-inline:clamp(1rem,4vw,2rem)}
.wrap--narrow{max-width:760px}
.center{text-align:center}

/* header */
.site-header{position:sticky;top:0;z-index:20;background:var(--paper);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:66px}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;color:var(--ink);font-weight:800;font-size:1.35rem;letter-spacing:-.03em}
.brand img{display:block}
.nav{display:none;align-items:center;gap:1.6rem}
.nav a:not(.btn){color:var(--ink);text-decoration:none;font-weight:600}
.nav a[aria-current]{color:var(--ocean);text-decoration:underline;text-decoration-thickness:3px;text-underline-offset:8px}
.menu summary{list-style:none;cursor:pointer;width:44px;height:44px;display:grid;place-items:center;border-radius:12px;border:1px solid var(--line)}
.menu summary::-webkit-details-marker{display:none}
.burger,.burger::before,.burger::after{display:block;width:20px;height:2.5px;background:var(--ink);border-radius:2px;position:relative;content:""}
.burger::before{position:absolute;top:-6px}.burger::after{position:absolute;top:6px}
.menu{position:relative}
.menu-panel{position:absolute;inset-inline-end:0;top:54px;min-width:230px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:.8rem;display:grid;gap:.2rem;box-shadow:0 18px 40px -18px rgba(12,33,68,.45)}
.menu-panel a:not(.btn){padding:.7rem .8rem;border-radius:10px;color:var(--ink);text-decoration:none;font-weight:600}
.menu-panel a:not(.btn):hover{background:var(--tint)}
.menu-panel .btn{margin-top:.4rem;text-align:center}
@media (min-width:780px){.nav{display:flex}.menu{display:none}}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;background:var(--ocean);color:#fff;border:2px solid var(--ocean);border-radius:999px;padding:.65rem 1.25rem;font:inherit;font-weight:700;text-decoration:none;cursor:pointer;line-height:1.2;transition:background .15s,transform .15s}
.btn:hover{background:var(--ocean-dk);border-color:var(--ocean-dk)}
.btn:active{transform:scale(.97)}
.btn--sm{padding:.45rem 1rem;font-size:.95rem}
.btn--lg{padding:.9rem 1.7rem;font-size:1.1rem}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{background:var(--tint);border-color:var(--ocean)}
.btn--amber{background:var(--sun);border-color:var(--sun);color:var(--sun-ink)}
.btn--amber:hover{background:#FFC04D;border-color:#FFC04D}
.more{font-weight:700}
.actions{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:1.2rem}
.chips{display:flex;flex-wrap:wrap;gap:.5rem}
.chip{font:inherit;font-weight:600;font-size:.95rem;background:var(--card);color:var(--ink);border:1.5px solid var(--line);border-radius:999px;padding:.35rem .95rem;cursor:pointer}
.chip:hover{border-color:var(--ocean)}
.chip.is-on{background:var(--ink);color:var(--paper);border-color:var(--ink)}

/* the speech bubble: the one signature shape */
.bubble{position:relative;background:var(--ocean);color:#fff;border-radius:30px 30px 30px 8px;padding:1.5rem 1.7rem}
.bubble::after{content:"";position:absolute;inset-inline-start:0;bottom:-15px;width:30px;height:18px;background:inherit;clip-path:polygon(0 0,100% 0,0 100%)}
[dir=rtl] .bubble{border-radius:30px 30px 8px 30px}
[dir=rtl] .bubble::after{clip-path:polygon(0 0,100% 0,100% 100%)}
.bubble--amber{background:var(--sun);color:var(--sun-ink)}
.bubble--amber p{margin:0}

/* hero */
.hero{padding:clamp(2rem,6vw,4.5rem) 0 clamp(2.5rem,6vw,4rem)}
.hero-in{display:grid;gap:2.2rem;align-items:center}
.hero h1{font-size:clamp(2.3rem,6vw,4.1rem);margin-bottom:1rem}
.lead{font-size:clamp(1.1rem,2.2vw,1.3rem);color:var(--muted);max-width:40ch}
@media (min-width:900px){.hero-in{grid-template-columns:1.05fr 1fr;gap:3.5rem}}
.starter .chips{margin-bottom:1.3rem}
.starter .bubble{box-shadow:0 26px 50px -28px rgba(26,98,214,.75);min-height:150px;display:flex;align-items:center}
.starter-q{font-size:clamp(1.3rem,3.2vw,1.85rem);font-weight:700;line-height:1.25;letter-spacing:-.015em;margin:0}
.typing{display:flex;gap:7px}
.typing[hidden]{display:none}
.typing i{width:11px;height:11px;border-radius:50%;background:#fff;opacity:.85;animation:bounce .9s infinite}
.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}
@keyframes bounce{0%,60%,100%{transform:translateY(0)}30%{transform:translateY(-7px)}}
.starter .actions{margin-top:1.6rem}

/* sections */
.section{padding:clamp(2.4rem,6vw,4.2rem) 0}
.section--tint{background:var(--tint)}
.head{margin-bottom:1.5rem;max-width:62ch}
.head h2{font-size:clamp(1.6rem,3.6vw,2.4rem)}
.head p{color:var(--muted);margin:0}
.split{display:grid;gap:2rem;align-items:center}
@media (min-width:900px){.split{grid-template-columns:1fr 1fr;gap:3.5rem}.split--demo{grid-template-columns:.8fr 1.2fr}}
.page-head{padding:clamp(2rem,5vw,3.5rem) 0 1rem}
.page-head h1{font-size:clamp(2rem,5vw,3.3rem)}
.page-head .chips{margin-top:1.2rem}
.crumbs{font-size:.92rem;color:var(--muted);margin-bottom:.8rem}
.crumbs a{color:inherit}

/* world now */
.world-list{display:flex;gap:.8rem;overflow-x:auto;scroll-snap-type:x proximity;list-style:none;margin:0;padding:.2rem .1rem .8rem}
.world-list li{scroll-snap-align:start;flex:0 0 auto}
.city{font:inherit;color:var(--ink);text-align:start;background:var(--card);border:1.5px solid var(--line);border-radius:16px;padding:.85rem 1rem;min-width:150px;cursor:pointer;display:grid;gap:.1rem}
.city:hover,.city[aria-pressed=true]{border-color:var(--ocean)}
.city[aria-pressed=true]{background:var(--ocean);color:#fff}
.city b{font-size:1.02rem}.city .t{font-size:1.75rem;font-weight:800;letter-spacing:-.03em;line-height:1.1}
.city small{font-size:.85rem;opacity:.85}
.city .dot{display:inline-block;width:.6rem;height:.6rem;border-radius:50%;background:var(--leaf);margin-inline-end:.35rem}
.city.is-asleep .dot{background:var(--muted)}
.world-detail{margin:.6rem 0 0;font-size:1.05rem}
.world-detail strong{font-size:1.5rem;letter-spacing:-.02em;margin-inline-start:.3rem}

/* hello */
.hello-card{background:var(--card);border:1.5px solid var(--line);border-radius:26px;padding:1.6rem 1.8rem;text-align:center}
.hello-lang{margin:0;color:var(--muted);font-weight:600}
.hello-lang small{margin-inline-start:.4rem;font-weight:500}
.hello-word{font-size:clamp(3rem,11vw,5.2rem);font-weight:800;letter-spacing:-.04em;line-height:1.1;margin:.5rem 0;color:var(--ocean);word-break:break-word}
.hello-say{margin:0;color:var(--muted)}
.hello-say b{color:var(--ink)}
.hello .actions{justify-content:center}

/* demo chat */
.demo-top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.8rem;margin-bottom:1rem}
.demo-who{margin:0;color:var(--muted);font-size:.95rem}
.chat{background:var(--card);border:1.5px solid var(--line);border-radius:26px;padding:1.2rem;display:grid;gap:.75rem}
.msg{display:grid;gap:.15rem;max-width:84%;justify-items:start}
.msg.me{justify-self:end;justify-items:end}
.msg .who{font-size:.8rem;color:var(--muted);padding-inline:.4rem}
.msg button{font:inherit;text-align:start;border:0;cursor:pointer;padding:.65rem 1rem;border-radius:20px 20px 20px 6px;background:var(--tint);color:var(--ink)}
.msg.me button{background:var(--ocean);color:#fff;border-radius:20px 20px 6px 20px}
[dir=rtl] .msg button{border-radius:20px 20px 6px 20px}[dir=rtl] .msg.me button{border-radius:20px 20px 20px 6px}
.msg .orig{display:block;font-size:.85rem;opacity:.8;margin-top:.35rem;padding-top:.35rem;border-top:1px dashed currentColor}
.msg .orig[hidden]{display:none}
.demo-note{color:var(--muted);font-size:.9rem;margin:.8rem .4rem 0}

/* cards */
.grid{display:grid;gap:1.25rem;grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
@media (min-width:900px){.grid--feature{grid-template-columns:repeat(4,1fr)}.card--big{grid-column:span 2;grid-row:span 2}.card--big .cover{height:280px}.card--big h3{font-size:1.6rem}}
.card{display:flex;flex-direction:column;background:var(--card);border:1.5px solid var(--line);border-radius:20px;overflow:hidden;color:inherit;text-decoration:none;transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--ocean);transform:translateY(-3px)}
.cover{position:relative;height:150px;background:linear-gradient(135deg,var(--c1),var(--c2));color:var(--fg);display:flex;align-items:flex-end;justify-content:space-between;padding:1rem 1.1rem;overflow:hidden}
.cover::before{content:"";position:absolute;inset-inline-end:-30px;top:-30px;width:130px;height:130px;border-radius:50% 50% 50% 10%;background:rgba(255,255,255,.18)}
.cover-word{position:relative;font-size:clamp(1.8rem,4vw,2.6rem);font-weight:800;letter-spacing:-.03em;line-height:1}
.card--big .cover-word{font-size:clamp(2.6rem,5vw,4rem)}
.cover-topic{position:relative;font-size:.78rem;font-weight:700;background:rgba(255,255,255,.22);padding:.2rem .65rem;border-radius:999px}
.card-body{padding:1.1rem 1.2rem 1.2rem;display:flex;flex-direction:column;gap:.45rem;flex:1}
.card h3{font-size:1.2rem;margin:0}
.card p{margin:0;color:var(--muted);font-size:.98rem}
.meta{font-size:.85rem;color:var(--muted);margin-top:auto;padding-top:.3rem}
.card--tool .cover{height:130px}

.tiles{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.tiles--3{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.tile{background:var(--card);border:1.5px solid var(--line);border-radius:16px;padding:1.2rem 1.3rem}
.tile h3{font-size:1.15rem}.tile ul{margin:.3rem 0 0;padding-inline-start:1.1rem}.tile li{margin:.3rem 0}.tile p{margin:0;color:var(--muted)}

/* app band */
.band{background:var(--ocean);color:#fff}
.band-in{display:flex;flex-wrap:wrap;align-items:center;gap:2rem;padding-block:clamp(2.2rem,5vw,3.4rem)}
.band img{flex:0 0 auto}
.band h2{font-size:clamp(1.6rem,3.4vw,2.3rem)}
.band p{max-width:52ch;opacity:.95}
.app-hero{display:grid;gap:2rem;align-items:center}
.app-hero img{justify-self:center}
@media (min-width:860px){.app-hero{grid-template-columns:1.3fr .7fr}}
.fine{font-size:.88rem;color:var(--muted);margin-top:.8rem}

/* article */
.post-head{background:linear-gradient(135deg,var(--c1),var(--c2));color:var(--fg);padding:clamp(2rem,6vw,4rem) 0 clamp(1.6rem,4vw,2.6rem)}
.post-head .crumbs{color:inherit;opacity:.85}
.post-head h1{font-size:clamp(2rem,5.4vw,3.3rem)}
.dek{font-size:clamp(1.1rem,2.4vw,1.3rem);opacity:.95;margin-bottom:1rem}
.byline{font-size:.95rem;opacity:.9;margin:0}
.prose{font-family:var(--serif);font-size:1.16rem;line-height:1.78;padding-block:2rem 1rem}
.prose h2,.prose h3{font-family:var(--sans);margin-top:2.3rem}
.prose h2{font-size:1.65rem}.prose h3{font-size:1.25rem}
.prose ul,.prose ol{padding-inline-start:1.4rem;margin:0 0 1.2rem}
.prose li{margin:.35rem 0}
.prose blockquote{margin:1.5rem 0;padding:.2rem 1.2rem;border-inline-start:5px solid var(--sun);font-style:italic;color:var(--muted)}
.prose code{font-size:.9em;background:var(--tint);padding:.1em .35em;border-radius:5px}
.prose hr{border:0;border-top:1.5px solid var(--line);margin:2rem 0}
.table-wrap{overflow-x:auto;margin:1.2rem 0}
table{border-collapse:collapse;width:100%;font-family:var(--sans);font-size:.98rem}
th,td{border-bottom:1px solid var(--line);padding:.6rem .7rem;text-align:start}
th{background:var(--tint)}
.toc{margin-top:1.6rem;background:var(--card);border:1.5px solid var(--line);border-radius:16px;padding:.9rem 1.2rem}
.toc summary{font-weight:700;cursor:pointer}
.toc ol{margin:.6rem 0 .2rem;padding-inline-start:1.3rem}.toc li{margin:.25rem 0}
.share{padding-bottom:2.5rem}
.cta-inline{display:grid;gap:1.4rem;margin:2.4rem 0;font-family:var(--sans);justify-items:start}
.cta-inline .bubble{font-size:1.05rem;line-height:1.5}
.cta-inline .btn{margin-inline-start:.4rem}
.starter-in-post{margin:2rem 0}
.prose .starter{font-family:var(--sans);margin:2rem 0}

/* ads: only rendered when configured; reserved height avoids layout jumps */
.ad{min-height:280px;margin:2rem 0;text-align:center;position:relative}
.ad::before{content:"Advertisement";display:block;font:600 .7rem var(--sans);color:var(--muted);margin-bottom:.3rem}

/* footer */
.site-footer{background:#0C2144;color:#D9E6FB;margin-top:0}
@media (prefers-color-scheme:dark){.site-footer{background:#050E20}}
.site-footer a{color:#D9E6FB}
.site-footer .brand{color:#fff}
.foot{display:grid;gap:2rem;padding-block:2.6rem 1.4rem}
@media (min-width:800px){.foot{grid-template-columns:1.5fr 1fr 1fr}}
.foot h2{font-size:1rem;color:#fff;margin-bottom:.7rem}
.foot nav a{display:block;padding:.2rem 0;text-decoration:none}
.foot nav a:hover{text-decoration:underline}
.foot-brand p{max-width:38ch;margin:.8rem 0 1rem}
.lang{display:flex;align-items:center;gap:.6rem;font-size:.92rem}
.lang select{font:inherit;background:#15305f;color:#fff;border:1px solid #2a4a82;border-radius:10px;padding:.35rem .6rem}
.legal{padding-block:1rem 2rem;border-top:1px solid #203b6b;font-size:.9rem;color:#9FB3D6}

@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}