/* moldqueen, image-driven, Porsche-style site. Scroll-tone (black to white) anchored to a
   fast sweep, big hover tiles, full-bleed imagery. Colour vars driven by site.js on the
   landing page; utility pages pin them dark. Vanilla CSS, no framework. */
:root{
  --bg:#0a0d12; --bg-rgb:10,13,18;
  --ink:#eef2f7; --ink-rgb:238,242,247;
  --accent:#46a0dc; --accent-rgb:70,160,220;
  --btn-bg:#60b2e9; --btn-fg:#04121d; /* primary-button fill+label; site.js tracks these to the scroll tone (continuous, AA-locked). Static fallback for no-JS / reduced-motion. */
  --halo-rgb:0,0,0; --halo-a:0;
  --muted:rgba(var(--ink-rgb),.66);
  --faint:rgba(var(--ink-rgb),.45);
  --line:rgba(var(--ink-rgb),.15);
  --line-2:rgba(var(--ink-rgb),.28);
  --surface:rgba(var(--ink-rgb),.05);
  --surface-2:rgba(var(--ink-rgb),.09);
  --maxw:1240px; --pad:clamp(1.2rem,5vw,3rem); --nav-h:66px;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 10px);-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);
  font-size:clamp(1rem,.55vw + .92rem,1.1rem);line-height:1.65;-webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;overflow-x:hidden;transition:background-color .1s linear,color .1s linear}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none}
h1,h2,h3{color:var(--ink);line-height:1.04;letter-spacing:-.02em;margin:0;font-weight:800;
  text-shadow:0 1px 22px rgba(var(--halo-rgb),var(--halo-a))}
p{margin:0 0 1rem;text-shadow:0 1px 12px rgba(var(--halo-rgb),var(--halo-a))}
code,pre{font-family:var(--mono)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:3px}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:#06121d;padding:.6em 1em;z-index:300}
.skip:focus{left:8px;top:8px}
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad)}
.muted{color:var(--muted)}
.eyebrow{font-size:.72rem;text-transform:uppercase;letter-spacing:.26em;color:var(--accent);
  font-weight:700;margin:0 0 1.1rem}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:100;height:var(--nav-h);display:flex;align-items:center;
  background:rgba(var(--bg-rgb),.62);backdrop-filter:saturate(150%) blur(14px);
  border-bottom:1px solid transparent;transition:border-color .25s,background-color .1s linear}
.nav.scrolled{border-bottom-color:var(--line);background:rgba(var(--bg-rgb),.85)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;width:100%;gap:1rem}
.brand{display:inline-flex;align-items:center;gap:.6rem;color:var(--ink);font-weight:700;letter-spacing:.01em}
.brand img{width:26px;height:26px;border-radius:6px}
.navlinks{display:flex;align-items:center;gap:1.4rem;list-style:none;margin:0;padding:0}
.navlinks a{color:var(--muted);font-size:.9rem;position:relative;padding:.3rem 0;transition:color .2s;white-space:nowrap}
.navlinks a:hover,.navlinks a.active{color:var(--ink)}
.navlinks a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--accent)}
.navlinks .cta{color:var(--ink);border:1px solid var(--line-2);padding:.45rem .9rem;border-radius:7px}
.navlinks .cta:hover{border-color:var(--accent)}
/* "Get started" disclosure dropdown. The parent is a real <button>; site.js keeps
   aria-expanded truthful and handles click/Esc/outside-click/child-click. On desktop
   the submenu is a collapsed-by-default popover that ALSO opens on hover/focus-within
   (mouse + keyboard); the <=1100px drawer flattens it to an indented stack instead. */
.navlinks .has-submenu{position:relative}
.navlinks .submenu-toggle{display:inline-flex;align-items:center;gap:.3rem;background:none;border:0;
  font:inherit;color:var(--muted);font-size:.9rem;cursor:pointer;padding:.3rem 0;white-space:nowrap;
  transition:color .2s}
.navlinks .submenu-toggle:hover{color:var(--ink)}
.navlinks .submenu-toggle::after{content:"";width:.42em;height:.42em;border-right:1.5px solid currentColor;
  border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-.06em);
  transition:transform .2s;opacity:.8}
.navlinks .submenu-toggle[aria-expanded="true"]::after{transform:rotate(-135deg) translateY(-.02em)}
.navlinks .submenu{position:absolute;top:calc(100% + .55rem);left:50%;transform:translateX(-50%) translateY(-.4rem);
  display:flex;flex-direction:column;align-items:stretch;gap:0;list-style:none;margin:0;padding:.4rem 0;
  min-width:13rem;background:rgba(var(--bg-rgb),.96);border:1px solid var(--line);border-radius:10px;
  box-shadow:0 18px 40px rgba(0,0,0,.45);-webkit-backdrop-filter:saturate(150%) blur(14px);
  backdrop-filter:saturate(150%) blur(14px);
  opacity:0;visibility:hidden;pointer-events:none;transition:opacity .18s,transform .18s,visibility .18s;z-index:120}
.navlinks .submenu li{display:block}
.navlinks .submenu a{display:block;padding:.5rem 1.1rem;white-space:nowrap}
.navlinks .submenu a.active::after{display:none}
/* open: hover OR keyboard focus-within OR JS-toggled aria-expanded=true */
.navlinks .has-submenu:hover .submenu,
.navlinks .has-submenu:focus-within .submenu,
.navlinks .submenu-toggle[aria-expanded="true"] + .submenu{
  opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
.lang{display:inline-flex;align-items:center;gap:.3rem;margin-left:.3rem}
.langbtn{background:none;border:0;color:var(--muted);font:inherit;font-size:.82rem;font-weight:700;letter-spacing:.04em;cursor:pointer;padding:.2rem .15rem}
.langbtn:hover{color:var(--ink)}
.langbtn.active{color:var(--accent)}
.langsep{color:var(--line-2);font-size:.82rem}
.navtoggle{display:none;background:none;border:0;color:var(--ink);cursor:pointer;width:42px;height:42px}
.navtoggle svg{width:24px;height:24px}
@media (max-width:1100px){
  .navtoggle{display:inline-flex;align-items:center;justify-content:center}
  .navlinks{position:fixed;inset:var(--nav-h) 0 auto 0;flex-direction:column;align-items:stretch;gap:0;
    background:var(--bg);border-bottom:1px solid var(--line);padding:.4rem var(--pad) 1.1rem;
    transform:translateY(-130%);transition:transform .3s var(--ease);box-shadow:0 24px 50px rgba(0,0,0,.5)}
  .nav.open .navlinks{transform:none}
  .navlinks a{padding:.9rem 0;border-bottom:1px solid var(--line);font-size:1.05rem}
  .navlinks a.active::after{display:none}
  .navlinks .cta{border:0;padding:.9rem 0}
  .navlinks .lang{padding:.8rem 0}
  /* In the drawer the "Get started" group flattens to an indented, ALWAYS-VISIBLE stack
     (no collapse/accordion). Override every desktop-popover property so the children
     stay reachable in the hamburger menu. */
  .navlinks .has-submenu{position:static}
  .navlinks .submenu-toggle{padding:.9rem 0;border-bottom:1px solid var(--line);font-size:1.05rem;text-align:left;width:100%}
  .navlinks .submenu-toggle::after{display:none}
  .navlinks .submenu{position:static;transform:none;display:flex;flex-direction:column;align-items:stretch;gap:0;
    margin:0;padding:0 0 0 1.1rem;min-width:0;background:none;border:0;border-radius:0;box-shadow:none;
    -webkit-backdrop-filter:none;backdrop-filter:none;
    opacity:1;visibility:visible;pointer-events:auto}
  .navlinks .submenu a{padding:.9rem 0}
}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.5rem;font:inherit;font-size:1rem;font-weight:600;
  color:var(--ink);background:transparent;border:1px solid var(--line-2);border-radius:8px;
  padding:.78em 1.5em;cursor:pointer;transition:border-color .2s,background-color .2s,color .2s,transform .2s}
.btn:hover{border-color:var(--accent);transform:translateY(-1px)}
.btn .arr{transition:transform .2s}
.btn:hover .arr{transform:translateX(4px)}
.btn-primary{background:var(--btn-bg);border-color:var(--btn-bg);color:var(--btn-fg)}
.btn-primary:hover{filter:brightness(1.08)}
.btn.ph{opacity:.5;cursor:not-allowed;border-style:dashed;color:var(--muted)}
.btn.ph:hover{border-color:var(--line-2);color:var(--muted);transform:none}
.fdroid-badge{display:inline-flex;vertical-align:middle;margin-left:.6rem;transition:transform .2s}
.fdroid-badge:hover{transform:translateY(-1px)}
.fdroid-badge img{height:46px;width:auto;display:block}

/* ---------- hero: full-bleed image, copy left-aligned in a clean bottom column ---------- */
.hero{position:relative;overflow:hidden}
.hero-slider{position:absolute;inset:0}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:74% 50%}
/* auto-rotating crossfade: only the active image is opaque; others fade out under it */
.hero-slider .hero-img{opacity:0;transition:opacity 1.1s var(--ease)}
.hero-slider .hero-img.is-active{opacity:1}
.hero::after{content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(90deg,rgba(4,6,10,.92) 0%,rgba(4,6,10,.72) 28%,rgba(4,6,10,.15) 62%,rgba(4,6,10,0) 100%),
             linear-gradient(0deg,rgba(4,6,10,.92) 0%,rgba(4,6,10,.25) 32%,rgba(4,6,10,0) 60%)}
/* manual "next image" arrow, vertically centered on the right edge of the hero (subtle, on-brand) */
.hero-next{position:absolute;z-index:3;right:clamp(1rem,3vw,2.4rem);top:50%;transform:translateY(-50%);
  display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;
  border:1px solid rgba(255,255,255,.35);border-radius:50%;
  background:rgba(8,12,18,.42);color:#f3f6fa;cursor:pointer;
  -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
  transition:background-color .2s,border-color .2s,transform .2s}
.hero-next svg{width:24px;height:24px}
.hero-next:hover{background:rgba(8,12,18,.62);border-color:rgba(255,255,255,.6)}
.hero-next:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.hero .wrap{position:relative;z-index:2;min-height:clamp(560px,90vh,920px);display:flex;flex-direction:column;
  justify-content:flex-end;padding-block:clamp(2.6rem,8vh,5.5rem)}
.hero-copy{max-width:48ch;color:#f3f6fa}
.hero-copy .eyebrow{color:#84c4f2}
.hero-copy h1{color:#fff;font-size:clamp(2.2rem,5.2vw,4.1rem);letter-spacing:-.025em;max-width:15ch;
  text-shadow:0 2px 36px rgba(0,0,0,.6)}
.hero-copy .tagline{font-size:clamp(1.1rem,1.9vw,1.45rem);color:#e7eef6;max-width:46ch;margin:1.3rem 0 0;font-weight:400}
.hero-copy .lead{margin-top:1.3rem;max-width:52ch;color:#bdccdd}
.actions{display:flex;flex-wrap:wrap;gap:.9rem;margin-top:2rem}

/* ---------- sections ---------- */
.section{padding-block:clamp(4rem,11vh,8.5rem);position:relative}
.section-head{max-width:64ch;margin-bottom:clamp(2.4rem,6vh,4rem)}
.section-head h2{font-size:clamp(2rem,4.6vw,3.4rem)}
.section-head .lead{margin-top:1.1rem;color:var(--muted);font-size:clamp(1.05rem,1.4vw,1.2rem)}

/* ---------- image-led rows (features / get-the-app), alternating ---------- */
.row{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(1.6rem,4vw,4.5rem);align-items:center;
  padding-block:clamp(2.2rem,5vh,4rem)}
.row + .row{border-top:1px solid var(--line)}
.row:last-child{padding-bottom:0}   /* don't let a trailing row inflate the section gap */
.row.rev .media{order:2}
.row .copy .num{font-family:var(--mono);font-size:.9rem;color:var(--accent);letter-spacing:.1em;margin-bottom:.9rem}
.row .copy h3{font-size:clamp(1.5rem,2.6vw,2.2rem);margin-bottom:.9rem}
.row .copy p{color:var(--muted);font-size:1.08rem;max-width:48ch}
@media (max-width:820px){.row{grid-template-columns:1fr;gap:1.4rem}.row.rev .media{order:0}}

/* ---------- capability capstone (server/client matrix below the radio cards) ---------- */
/* Sits after the last .row; .row:last-child zeroes its own bottom padding, so give the
   capstone its own top border + spacing for a clean separation. */
.combine{border-top:1px solid var(--line);margin-top:clamp(2.4rem,6vh,4.5rem);padding-top:clamp(2.4rem,6vh,4rem)}
.combine .combine-h{font-size:clamp(1.5rem,2.6vw,2.2rem);margin-bottom:.9rem}
.combine .combine-lead{color:var(--muted);font-size:1.08rem;max-width:60ch;margin-bottom:2rem}
.cap{width:100%;border-collapse:collapse;font-size:1rem;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.cap thead th{text-align:left;font-size:.72rem;text-transform:uppercase;letter-spacing:.14em;font-weight:800;
  color:var(--faint);padding:1rem 1.2rem;background:var(--surface);border-bottom:1px solid var(--line-2)}
.cap thead th:not(.cap-corner){text-align:center;width:9rem}
.cap tbody th{text-align:left;font-weight:700;color:var(--ink);padding:1rem 1.2rem;border-bottom:1px solid var(--line)}
.cap tbody td{text-align:center;padding:1rem 1.2rem;border-bottom:1px solid var(--line);font-size:1.15rem;line-height:1}
.cap tbody tr:last-child th,.cap tbody tr:last-child td{border-bottom:0}
.cap td.yes{color:var(--accent);font-weight:800}
.cap td.no{color:var(--faint)}
.cap .cap-fn{color:var(--accent);text-decoration:none;font-weight:800}
.cap .cap-fn sup{font-size:.7em}
/* planned roadmap rows: muted + a dashed "planned" pill, modelled on .proto.soon */
.cap tr.planned th,.cap tr.planned td{color:var(--muted);background:var(--surface)}
.cap tr.planned td.yes{color:rgba(var(--accent-rgb),.6)}
.cap-soon{display:inline-block;margin-left:.5rem;font-size:.6rem;font-weight:800;letter-spacing:.1em;
  text-transform:uppercase;vertical-align:middle;padding:.18rem .5rem;border-radius:6px;
  color:var(--faint);border:1px dashed var(--line-2);background:transparent}
.combine-note{margin-top:1.2rem;color:var(--faint);font-size:.9rem;max-width:60ch}
.combine-note sup{color:var(--accent);font-weight:800;margin-right:.15rem}
@media (max-width:620px){
  /* reflow each row into a stacked block; keep the same accessible <table> markup */
  .cap{border-radius:0;border-left:0;border-right:0}
  .cap thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap}
  .cap tbody,.cap tbody tr,.cap tbody th,.cap tbody td{display:block;width:auto}
  .cap tbody tr{border:1px solid var(--line);border-radius:12px;padding:.4rem .2rem;margin-bottom:1rem;background:var(--surface)}
  .cap tbody tr:last-child{margin-bottom:0}
  .cap tbody th{border-bottom:1px solid var(--line);padding:.7rem 1rem .8rem;font-size:1.05rem}
  .cap tbody td{display:flex;justify-content:space-between;align-items:center;text-align:right;
    padding:.55rem 1rem;border-bottom:1px solid var(--line);font-size:1.05rem}
  .cap tbody tr td:last-child{border-bottom:0}
  .cap tbody td::before{content:attr(data-label);color:var(--muted);font-size:.82rem;font-weight:700;
    letter-spacing:.06em;text-transform:uppercase}
  .cap tr.planned th,.cap tr.planned td{background:transparent}
}

.media{position:relative}
.shot{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:16px;border:1px solid var(--line);
  box-shadow:0 30px 70px -34px rgba(0,0,0,.65);transition:transform .5s var(--ease),box-shadow .5s}
.shot.contain{object-fit:contain;background:#0b0e14}
/* show an image FULLY (no crop): container takes the image's natural aspect ratio */
.shot.full{aspect-ratio:auto;height:auto;object-fit:fill;background:transparent}
.row:hover .shot{transform:translateY(-6px);box-shadow:0 42px 90px -40px rgba(0,0,0,.7)}

/* "Everything on the phone", two distinct visuals: the phone render, and a separate
   open/closed-menu frame where the menu opens on hover. */
.android-media{display:flex;flex-direction:column;gap:1rem}
.menu-pair{position:relative;aspect-ratio:1050/524;border-radius:14px;overflow:hidden;
  border:1px solid var(--line);box-shadow:0 24px 50px -22px rgba(0,0,0,.7)}
.menu-pair img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.menu-pair .m-open{opacity:0;transition:opacity .45s var(--ease)}
.menu-pair:hover .m-open,.menu-pair:focus-within .m-open{opacity:1}
.menu-pair .ov-tag{position:absolute;left:.7rem;top:.6rem;z-index:2;font-family:var(--mono);font-size:.6rem;
  letter-spacing:.12em;text-transform:uppercase;color:#cfe0f2;background:rgba(6,10,16,.72);border:1px solid rgba(255,255,255,.2);
  padding:.2rem .5rem;border-radius:5px}

/* ---------- ESP32 setup step slider (user-paced carousel) ---------- */
.stepper{margin-top:1rem}
.step-stage{position:relative}
/* JS-upgraded: one step visible at a time, the stage sizes to the active step */
.stepper:not(.no-js) .step-stage{display:grid}
.stepper:not(.no-js) .step{grid-area:1/1;display:grid;grid-template-columns:1.05fr .95fr;
  gap:clamp(1.6rem,4vw,4.5rem);align-items:center;
  opacity:0;visibility:hidden;transition:opacity .4s var(--ease)}
.stepper:not(.no-js) .step.is-active{opacity:1;visibility:visible}
/* portrait frame to match phone-screenshot aspect; contained + height-capped so the
   shot reads large without dominating the viewport. The image is click-to-zoomable. */
.stepper .step-media{display:flex;justify-content:center}
.stepper .step-media .shot{aspect-ratio:9/16;width:auto;max-width:100%;max-height:min(72vh,620px);
  margin-inline:auto}
.shot.zoomable{cursor:zoom-in}
.stepper .step-copy .num{font-family:var(--mono);font-size:.9rem;color:var(--accent);letter-spacing:.1em;margin-bottom:.9rem}
.stepper .step-copy p{color:var(--muted);font-size:1.08rem;max-width:48ch;margin:0}
/* controls (hidden in the no-js fallback) */
.step-controls{display:flex;align-items:center;justify-content:center;gap:1.1rem;margin-top:1.8rem}
.stepper.no-js .step-controls,.stepper.no-js .step-indicator{display:none}
.step-nav{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;
  border:1px solid var(--line-2);border-radius:50%;background:var(--surface);color:var(--ink);
  cursor:pointer;transition:border-color .2s,background-color .2s,opacity .2s}
.step-nav svg{width:22px;height:22px}
.step-nav:hover{border-color:var(--accent)}
.step-nav:disabled{opacity:.3;cursor:default;border-color:var(--line)}
.step-dots{display:flex;align-items:center;gap:.55rem}
.step-dot{width:9px;height:9px;padding:0;border-radius:50%;border:1px solid var(--line-2);
  background:transparent;cursor:pointer;transition:background-color .2s,border-color .2s,transform .2s}
.step-dot:hover{border-color:var(--accent)}
.step-dot.active{background:var(--accent);border-color:var(--accent);transform:scale(1.15)}
.step-indicator{text-align:center;margin-top:.9rem;font-family:var(--mono);font-size:.82rem;
  letter-spacing:.08em;color:var(--faint)}
/* no-js fallback: plain vertical stack of all five steps */
.stepper.no-js .step{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(1.6rem,4vw,4.5rem);
  align-items:center;padding-block:clamp(2rem,5vh,3.5rem)}
.stepper.no-js .step + .step{border-top:1px solid var(--line)}
@media (max-width:820px){
  .stepper:not(.no-js) .step,.stepper.no-js .step{grid-template-columns:1fr;gap:1.4rem}
}

/* click-to-zoom lightbox for a step screenshot */
.lightbox[hidden]{display:none}
.lightbox{position:fixed;inset:0;z-index:400;display:flex;align-items:center;justify-content:center;
  padding:clamp(1rem,4vw,2.5rem)}
.lightbox-backdrop{position:absolute;inset:0;background:rgba(4,6,10,.86);
  -webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}
.lightbox-figure{position:relative;z-index:1;margin:0;display:flex;flex-direction:column;align-items:center;
  max-width:min(94vw,560px)}
.lightbox-img{display:block;max-width:100%;max-height:82vh;width:auto;height:auto;
  border-radius:14px;border:1px solid var(--line-2);box-shadow:0 40px 90px -40px rgba(0,0,0,.8)}
.lightbox-cap{margin-top:1rem;text-align:center;color:#dbe4ee;font-size:.96rem;line-height:1.5;max-width:48ch}
.lightbox-close{position:absolute;top:-14px;right:-14px;display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border:1px solid rgba(255,255,255,.35);border-radius:50%;
  background:rgba(8,12,18,.82);color:#f3f6fa;cursor:pointer;transition:background-color .2s,border-color .2s}
.lightbox-close svg{width:22px;height:22px}
.lightbox-close:hover{background:rgba(8,12,18,.95);border-color:rgba(255,255,255,.6)}
.lightbox-close:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
body.lb-open{overflow:hidden}
@media (max-width:560px){.lightbox-close{top:-10px;right:-10px}}

/* code blocks */
pre.cmd{background:rgba(var(--ink-rgb),.06);border:1px solid var(--line);border-radius:10px;padding:.9rem 1.1rem;
  overflow-x:auto;font-size:.9rem;color:var(--ink);margin:1.1rem 0;white-space:pre}
pre.cmd .c{color:var(--faint)}

/* full-bleed showcase (startpage) */
.showcase{position:relative;border-radius:18px;overflow:hidden;border:1px solid var(--line);
  box-shadow:0 40px 90px -44px rgba(0,0,0,.7)}
.showcase img{width:100%;display:block}

/* ---------- layouts: 3 tiles in one row; hovered tile expands and the others make room ---------- */
.tiles{display:flex;gap:clamp(1rem,1.8vw,1.5rem);align-items:stretch}
.tile{position:relative;display:block;flex:1 1 0%;min-width:0;height:clamp(340px,46vh,480px);
  border-radius:20px;overflow:hidden;isolation:isolate;background:var(--surface-2);border:1px solid var(--line);color:#fff;
  transition:flex-grow .55s var(--ease),box-shadow .55s var(--ease),border-color .3s}
.tile img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform .8s var(--ease)}
.tile .scrim{position:absolute;inset:0;z-index:-1;
  background:linear-gradient(0deg,rgba(5,7,11,.94) 6%,rgba(5,7,11,.55) 40%,rgba(5,7,11,.05) 74%)}
.tile .t-badges{position:absolute;left:1.1rem;top:1.1rem;display:flex;flex-wrap:wrap;gap:.4rem}
.tile .open{position:absolute;top:1.1rem;right:1.2rem;font-size:1.3rem;color:#fff;opacity:.0;transform:translateY(-6px);
  transition:opacity .3s,transform .3s;text-shadow:0 2px 10px rgba(0,0,0,.6)}
.tile .tbody{position:absolute;left:0;right:0;bottom:0;padding:clamp(1.2rem,2.2vw,1.8rem)}
.tile h3{color:#fff;font-size:clamp(1.35rem,2.1vw,1.7rem);text-shadow:0 2px 18px rgba(0,0,0,.55)}
.tile .t-sub{color:#9fd0f5;font-size:.82rem;font-weight:700;letter-spacing:.04em;margin-top:.45rem;text-transform:uppercase}
.tile .t-desc{color:rgba(255,255,255,.86);font-size:.98rem;margin:.7rem 0 0;max-width:42ch;
  max-height:0;opacity:0;overflow:hidden;transition:max-height .5s var(--ease),opacity .4s,margin .5s}
.tile .t-fns{display:flex;flex-wrap:wrap;gap:.35rem;margin-top:0;max-height:0;opacity:0;overflow:hidden;
  transition:max-height .5s var(--ease),opacity .4s,margin .5s}
.tile .t-fns span{font-family:var(--mono);font-size:.68rem;color:#dce8f5;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.16);border-radius:5px;padding:.16rem .42rem}
/* hovered tile grows to ~2.2x a sibling's width; others shrink, the row stays one line */
.tiles:hover .tile:not(:hover){flex-grow:.62}
.tile:hover,.tile:focus-visible{flex-grow:2.2;
  box-shadow:0 50px 90px -30px rgba(0,0,0,.7);border-color:rgba(var(--accent-rgb),.75);z-index:2}
.tile:hover img,.tile:focus-visible img{transform:scale(1.1)}
.tile:hover .open,.tile:focus-visible .open{opacity:1;transform:none}
.tile:hover .t-desc,.tile:focus-visible .t-desc,.tile:hover .t-fns,.tile:focus-visible .t-fns{max-height:8rem;opacity:1}
.tile:hover .t-fns,.tile:focus-visible .t-fns{margin-top:.8rem}
.tile-noimg img{display:none}
.tile-noimg{background:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 14px,transparent 14px 28px),#12161d}
/* mobile: stack, no expand, show the full info on every tile */
@media (max-width:820px){
  .tiles{flex-direction:column}
  .tile{flex:none;height:auto;aspect-ratio:16/10}
  .tiles:hover .tile:not(:hover),.tile:hover,.tile:focus-visible{flex-grow:0}
  .tile .t-desc,.tile .t-fns{max-height:8rem;opacity:1;margin-top:.7rem}
}

/* badges (on image) */
.badge,.proto{font-size:.62rem;font-weight:800;letter-spacing:.09em;text-transform:uppercase;
  padding:.26rem .56rem;border-radius:6px;border:1px solid rgba(255,255,255,.28);
  color:#fff;background:rgba(7,10,14,.62);backdrop-filter:blur(6px)}
.badge.generic{color:#bfe0ff;border-color:rgba(90,170,224,.8);background:rgba(20,52,84,.72)}
.badge.model{color:#d7eec6;border-color:rgba(120,160,90,.8);background:rgba(36,56,28,.72)}
.proto.soon{color:rgba(255,255,255,.55);border-style:dashed;border-color:rgba(255,255,255,.3);background:rgba(7,10,14,.4)}
.tiles-note{margin-top:1.6rem;color:var(--faint);font-size:.92rem}
.tiles-fail{grid-column:1/-1;border:1px solid var(--line);border-radius:14px;padding:1.6rem;color:var(--muted);background:var(--surface)}

/* ---------- dev rows + callout ---------- */
.rows{border-top:1px solid var(--line)}
.dline{display:grid;grid-template-columns:14rem 1fr;gap:1.2rem;padding:1.15rem 0;border-bottom:1px solid var(--line)}
.dline .k{color:var(--ink);font-weight:700}
.dline .v{color:var(--muted)}
@media (max-width:620px){.dline{grid-template-columns:1fr;gap:.25rem}}
.callout{border:1px solid var(--line-2);border-left:3px solid var(--accent);background:var(--surface);
  border-radius:10px;padding:1.1rem 1.3rem;margin:1.6rem 0;color:var(--ink)}
.callout.warn{border-left-color:#e0b04a}

/* ---------- roadmap ---------- */
.roadmap{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.roadmap li{padding:1.2rem 0;border-bottom:1px solid var(--line)}
.roadmap b{color:var(--ink);font-weight:800}
.roadmap span{color:var(--muted)}

/* ---------- inspiration teaser (cards) ---------- */
.insp-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.1rem}
.insp-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:1.3rem 1.4rem;transition:border-color .25s,transform .25s,background-color .25s}
.insp-card:hover{border-color:var(--line-2);transform:translateY(-4px);background:var(--surface-2)}
.insp-card h3{font-size:1.12rem;margin-bottom:.45rem}
.insp-card p{color:var(--muted);font-size:.95rem;flex:1}
.insp-actions{display:flex;flex-wrap:wrap;gap:.9rem;align-items:center;margin-top:1.8rem}

/* ---------- prose ---------- */
.prose{max-width:74ch}
.prose h3{font-size:1.25rem;margin-top:2rem;margin-bottom:.5rem}
.prose p,.prose li{color:var(--ink)}
.prose .muted{color:var(--muted)}
.prose ul{padding-left:1.2rem}.prose li{margin:.35rem 0}
.prose code{background:var(--surface-2);border:1px solid var(--line);border-radius:5px;padding:.05em .4em;font-size:.9em}

/* ---------- footer (fixed dark) ---------- */
.foot{background:#07090c;color:#aeb9c7;border-top:1px solid rgba(255,255,255,.08);padding-block:3rem;position:relative;z-index:1}
.foot .frow{display:flex;flex-wrap:wrap;gap:1.4rem;align-items:center;justify-content:space-between}
.foot .brand{color:#eef2f7}
.foot nav{display:flex;flex-wrap:wrap;gap:1.4rem}
.foot a{color:#aeb9c7}.foot a:hover{color:#fff}
.foot .fine{margin-top:1.4rem;color:#697585;font-size:.84rem;max-width:78ch}

/* ---------- utility pages (privacy / inspiration): pinned dark ---------- */
body.util{--bg:#0a0d12;--bg-rgb:10,13,18;--ink:#eef2f7;--ink-rgb:238,242,247;--accent:#46a0dc;--accent-rgb:70,160,220;--btn-bg:#60b2e9;--btn-fg:#04121d;--halo-a:0}
.pagehead{padding-block:clamp(2.8rem,8vh,5rem) clamp(1.4rem,4vh,2.4rem);border-bottom:1px solid var(--line)}
.pagehead h1{font-size:clamp(2.1rem,5vw,3.4rem)}
.pagehead .lead{color:var(--muted);margin-top:.9rem;max-width:60ch}
.util-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1rem;margin-top:1.8rem}
.util-card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:1.3rem 1.4rem}
.util-card h3{font-size:1.15rem;margin-bottom:.5rem}
.util-card p{color:var(--muted);font-size:.96rem}

/* ---------- motion preferences ---------- */
@media (prefers-reduced-motion:reduce){
  .tile,.tile img,.shot,.btn,.row:hover .shot,.menu-pair .m-open{transition:none!important}
  .tiles:hover .tile:not(:hover),.tile:hover,.tile:focus-visible{flex-grow:1}  /* no expand */
  .tile:hover img{transform:none}
  .hero-slider .hero-img,.stepper:not(.no-js) .step{transition:none!important}
  .hero-next,.lightbox-close{transition:none!important}
  body{transition:none}
}