/* ==========================================================================
   AJ_Modern_UI — core liquid-glass system
   --------------------------------------------------------------------------
   Theme-agnostic. Every colour, radius, blur and font comes from a CSS
   variable. Swap a theme file (assets/themes/*.css) to re-skin everything.
   Layers:
     1. Mode tokens  (light / dark neutrals, glass alphas)
     2. Base + page background (faceted ice pattern)
     3. Glass surfaces  (.aj-glass, .aj-panel, .aj-pill …)
     4. Icons           (.aj-gicon glass icons — default; .aj-jelly tiles; .aj-coin/.aj-hex/.aj-key number badges)
     5. Controls        (buttons, chips, segmented, progress, inputs)
     6. Layout helpers  (container, section, grid, nav, footer)
   ========================================================================== */

/* ---------- 1. Mode tokens ------------------------------------------------ */
:root {
  color-scheme: light;

  /* Fallback theme values (overridden by a theme file) */
  --bg-h: 210;                 /* hue of page background                     */
  --accent: #3fd6e6;           /* primary action / active state              */
  --accent-ink: #062a33;       /* text on accent                             */
  --accent-2: var(--k1);         /* secondary highlight                        */
  --jelly-a1: #ffb347; --jelly-a2: #ff5f8f;   /* jelly tile gradient A       */
  --jelly-b1: var(--k1); --jelly-b2: #46e0ff;   /* jelly tile gradient B       */
  --jelly-c1: #36d1c4; --jelly-c2: #2bb0a6;   /* jelly tile gradient C       */
  --coin-1: var(--k2); --coin-2: #20b98a; --coin-3: #f2802a; --coin-4: var(--k3);

  /* Soft glass-icon palette (pastel pairs, top-left → bottom-right) */
  --soft-peach-1: #ffd0a8; --soft-peach-2: #ff9fb8;
  --soft-lilac-1: var(--k4); --soft-lilac-2: var(--k5);
  --soft-sky-1:   #b5e4ff; --soft-sky-2:   var(--k6);
  --soft-mint-1:  #b4f2dc; --soft-mint-2:  #6fd8c8;
  --soft-rose-1:  #ffc2d6; --soft-rose-2:  var(--k7);
  --soft-lemon-1: #ffeaa0; --soft-lemon-2: #ffbf94;

  /* Typography */
  --font-display: "Plus Jakarta Sans", "SF Pro Display", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: "Plus Jakarta Sans", "SF Pro Text", system-ui, -apple-system, "Segoe UI", sans-serif;
  --fs-hero: clamp(2.6rem, 5.4vw + .6rem, 5rem);
  --fs-h2: clamp(1.9rem, 2.6vw + .7rem, 3rem);
  --fs-h3: 1.3rem;
  --fs-body: 1.0625rem;
  --fs-small: .875rem;

  /* Shape */
  --r-xs: 10px; --r-sm: 14px; --r-md: 20px; --r-lg: 28px; --r-xl: 40px; --r-pill: 999px;
  --blur: 24px;
  --space: clamp(1rem, 2vw, 1.5rem);
  --section-gap: clamp(4.5rem, 9vw, 8rem);
  --container: 1200px;

  /* Neutrals — light mode */
  --bg-base: hsl(var(--bg-h) 28% 90%);
  --bg-deep: hsl(var(--bg-h) 42% 22%);
  --bg-light: hsl(var(--bg-h) 40% 98%);
  --facet-ink: 255 255 255;            /* rgb triplet used in the facet pattern */
  --facet-alpha: .32;
  --ink: hsl(var(--bg-h) 45% 12%);
  --ink-soft: hsl(var(--bg-h) 18% 34%);
  --ink-faint: hsl(var(--bg-h) 12% 52%);

  --glass-hi: rgba(255,255,255,.62);
  --glass-lo: rgba(255,255,255,.28);
  --glass-solid: rgba(255,255,255,.78);
  --glass-dark: hsl(var(--bg-h) 30% 26% / .78);
  --glass-stroke: rgba(255,255,255,.75);
  --glass-edge: hsl(var(--bg-h) 30% 40% / .18);
  --glass-highlight: rgba(255,255,255,.95);
  --shadow-soft: 0 24px 60px -24px hsl(var(--bg-h) 40% 20% / .35), 0 6px 18px -8px hsl(var(--bg-h) 40% 20% / .18);
  --shadow-key: 0 2px 0 hsl(var(--bg-h) 20% 70%), 0 10px 22px -10px hsl(var(--bg-h) 40% 20% / .45);
  --focus: 0 0 0 3px var(--bg-light), 0 0 0 5px var(--accent);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-mode="light"]) {
    color-scheme: dark;
    --bg-base: hsl(var(--bg-h) 38% 10%);
    --bg-deep: hsl(var(--bg-h) 50% 5%);
    --bg-light: hsl(var(--bg-h) 30% 22%);
    --facet-ink: 160 200 255;
    --facet-alpha: .07;
    --ink: hsl(var(--bg-h) 30% 96%);
    --ink-soft: hsl(var(--bg-h) 16% 76%);
    --ink-faint: hsl(var(--bg-h) 12% 58%);
    --glass-hi: rgba(255,255,255,.14);
    --glass-lo: rgba(255,255,255,.04);
    --glass-solid: rgba(255,255,255,.12);
    --glass-dark: rgba(0,0,0,.35);
    --glass-stroke: rgba(255,255,255,.18);
    --glass-edge: rgba(0,0,0,.35);
    --glass-highlight: rgba(255,255,255,.35);
    --shadow-soft: 0 30px 70px -28px rgba(0,0,0,.75), 0 8px 20px -10px rgba(0,0,0,.5);
    --shadow-key: 0 2px 0 rgba(0,0,0,.55), 0 12px 24px -10px rgba(0,0,0,.7);
  }
}
:root[data-mode="dark"] {
  color-scheme: dark;
  --bg-base: hsl(var(--bg-h) 38% 10%);
  --bg-deep: hsl(var(--bg-h) 50% 5%);
  --bg-light: hsl(var(--bg-h) 30% 22%);
  --facet-ink: 160 200 255;
  --facet-alpha: .07;
  --ink: hsl(var(--bg-h) 30% 96%);
  --ink-soft: hsl(var(--bg-h) 16% 76%);
  --ink-faint: hsl(var(--bg-h) 12% 58%);
  --glass-hi: rgba(255,255,255,.14);
  --glass-lo: rgba(255,255,255,.04);
  --glass-solid: rgba(255,255,255,.12);
  --glass-dark: rgba(0,0,0,.35);
  --glass-stroke: rgba(255,255,255,.18);
  --glass-edge: rgba(0,0,0,.35);
  --glass-highlight: rgba(255,255,255,.35);
  --shadow-soft: 0 30px 70px -28px rgba(0,0,0,.75), 0 8px 20px -10px rgba(0,0,0,.5);
  --shadow-key: 0 2px 0 rgba(0,0,0,.55), 0 12px 24px -10px rgba(0,0,0,.7);
}

/* ---------- 2. Base + background ----------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
:root {
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
html { scroll-padding-top: calc(env(safe-area-inset-top, 0px) + 96px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg-base);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg, video { max-width: 100%; }
[hidden] { display: none !important; }
a { color: inherit; }
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.08; letter-spacing: -0.025em; margin: 0; }
p { margin: 0; }

/* The faceted ice backdrop from the reference board. Fixed layer behind all content. */
.aj-backdrop {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(60% 50% at 18% 12%, var(--bg-light) 0%, transparent 70%),
    radial-gradient(50% 60% at 92% 70%, var(--bg-deep) 0%, transparent 75%),
    radial-gradient(40% 40% at 70% 20%, color-mix(in srgb, var(--accent) 22%, transparent) 0%, transparent 70%),
    linear-gradient(160deg, var(--bg-light) 0%, var(--bg-base) 45%, var(--bg-deep) 100%);
}
.aj-backdrop::before {
  content: ""; position: absolute; inset: 0; opacity: var(--facet-alpha);
  /* low-poly facet tile, tinted via mask so it follows --facet-ink */
  background: rgb(var(--facet-ink));
  -webkit-mask: var(--facet-pattern) 0 0 / 420px 364px repeat;
          mask: var(--facet-pattern) 0 0 / 420px 364px repeat;
}
:root {
  --facet-pattern: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='156' viewBox='0 0 180 156'%3E%3Cg%3E%3Cpath d='M0 0L45 26L0 52Z' fill-opacity='.55'/%3E%3Cpath d='M0 0L90 0L45 26Z' fill-opacity='.2'/%3E%3Cpath d='M90 0L45 26L90 52Z' fill-opacity='.4'/%3E%3Cpath d='M90 0L180 0L135 26Z' fill-opacity='.7'/%3E%3Cpath d='M90 0L135 26L90 52Z' fill-opacity='.1'/%3E%3Cpath d='M180 0L135 26L180 52Z' fill-opacity='.45'/%3E%3Cpath d='M0 52L45 26L45 78Z' fill-opacity='.15'/%3E%3Cpath d='M45 26L90 52L45 78Z' fill-opacity='.6'/%3E%3Cpath d='M90 52L135 26L135 78Z' fill-opacity='.3'/%3E%3Cpath d='M135 26L180 52L135 78Z' fill-opacity='.05'/%3E%3Cpath d='M0 52L45 78L0 104Z' fill-opacity='.35'/%3E%3Cpath d='M45 78L90 52L90 104Z' fill-opacity='.12'/%3E%3Cpath d='M90 52L135 78L90 104Z' fill-opacity='.5'/%3E%3Cpath d='M135 78L180 52L180 104Z' fill-opacity='.25'/%3E%3Cpath d='M0 104L45 78L45 130Z' fill-opacity='.6'/%3E%3Cpath d='M45 78L90 104L45 130Z' fill-opacity='.08'/%3E%3Cpath d='M90 104L135 78L135 130Z' fill-opacity='.42'/%3E%3Cpath d='M135 78L180 104L135 130Z' fill-opacity='.65'/%3E%3Cpath d='M0 104L45 130L0 156Z' fill-opacity='.2'/%3E%3Cpath d='M45 130L90 104L90 156Z' fill-opacity='.5'/%3E%3Cpath d='M90 104L135 130L90 156Z' fill-opacity='.18'/%3E%3Cpath d='M135 130L180 104L180 156Z' fill-opacity='.38'/%3E%3Cpath d='M0 156L45 130L90 156Z' fill-opacity='.3'/%3E%3Cpath d='M90 156L135 130L180 156Z' fill-opacity='.1'/%3E%3C/g%3E%3C/svg%3E");
}

:focus-visible { outline: none; box-shadow: var(--focus); border-radius: var(--r-sm); }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* ---------- 3. Glass surfaces -------------------------------------------- */
/* Base recipe: two-stop translucent fill + blur + bright top stroke + soft drop */
.aj-glass {
  position: relative;
  background: linear-gradient(145deg, var(--glass-hi), var(--glass-lo));
  -webkit-backdrop-filter: blur(var(--blur)) saturate(170%);
          backdrop-filter: blur(var(--blur)) saturate(170%);
  border: 1px solid var(--glass-stroke);
  border-radius: var(--r-lg);
  box-shadow:
    inset 0 1px 0 var(--glass-highlight),
    inset 0 -1px 0 var(--glass-edge),
    var(--shadow-soft);
}
/* Specular sheen across the top-left */
.aj-glass::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: linear-gradient(125deg, rgba(255,255,255,.35) 0%, rgba(255,255,255,0) 32%);
  mix-blend-mode: soft-light;
}
.aj-glass > * { position: relative; }

/* Big board panel with corner "screws" (from the reference) */
.aj-panel { border-radius: var(--r-xl); padding: clamp(1.25rem, 3vw, 2.5rem); }
.aj-panel.aj-screws::after {
  content: ""; position: absolute; inset: 16px; pointer-events: none;
  background:
    radial-gradient(circle at 6px 6px, transparent 3px, var(--glass-stroke) 3.5px, transparent 5px) top left / 12px 12px no-repeat,
    radial-gradient(circle at 6px 6px, transparent 3px, var(--glass-stroke) 3.5px, transparent 5px) top right / 12px 12px no-repeat,
    radial-gradient(circle at 6px 6px, transparent 3px, var(--glass-stroke) 3.5px, transparent 5px) bottom left / 12px 12px no-repeat,
    radial-gradient(circle at 6px 6px, transparent 3px, var(--glass-stroke) 3.5px, transparent 5px) bottom right / 12px 12px no-repeat;
}
.aj-card { padding: 1.5rem; border-radius: var(--r-lg); }
.aj-glass--dark {
  background: linear-gradient(145deg, var(--glass-dark), color-mix(in srgb, var(--glass-dark) 70%, transparent));
  color: #fff; --ink-soft: rgba(255,255,255,.75);
}
.aj-glass--solid { background: var(--glass-solid); }
.aj-divider { height: 1px; border: 0; margin: 1.25rem 0; background: linear-gradient(90deg, transparent, var(--glass-stroke), var(--glass-edge), transparent); }

/* ---------- 4. Icon holders --------------------------------------------- */
/* Glyphs come from the sprite (assets/icons/aj-icons.svg) via an <svg class="aj-i"> + <use> pointing at a symbol id.
   Holders are independent of glyphs — swap either one without touching the other. */
.aj-i { width: 1.25em; height: 1.25em; flex: none; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; vertical-align: -0.2em; }

/* ===== Glass icon — THE default icon style ==================================
   A soft pastel shape sits behind a frosted glass plate; the white glyph floats
   on the glass. Markup:
     <span class="aj-gicon aj-gicon--peach"><svg class="aj-i"><use href="#i-message"/></svg></span>
   Colours: --peach --lilac --sky --mint --rose --lemon (or set --g1/--g2 inline).
   Sizes:   --sm 44 · default 64 · --lg 88 · --xl 120 (or --size inline).
   Styles:  default layered · --flat (single tinted glass, for small/dense spots)
            · --clear (colourless glass, glyph in ink).                         */
.aj-gicon {
  --g1: var(--soft-sky-1); --g2: var(--soft-sky-2); --size: 64px;
  position: relative; display: inline-grid; place-items: center; flex: none;
  width: var(--size); height: var(--size);
  color: #fff;
}
/* back: soft colour shape, nudged up-left and tilted so it peeks out */
.aj-gicon::before {
  content: ""; position: absolute; z-index: 0;
  inset: 0 12% 12% 0; border-radius: calc(var(--size) * .3);
  background: linear-gradient(140deg, var(--g1), var(--g2));
  transform: translate(-5%, -5%) rotate(-9deg);
  box-shadow: 0 calc(var(--size) * .16) calc(var(--size) * .3) calc(var(--size) * -.1) var(--g2);
}
/* front: frosted glass plate that blurs the colour behind it */
.aj-gicon::after {
  content: ""; position: absolute; z-index: 1;
  inset: 12% 0 0 12%; border-radius: calc(var(--size) * .28);
  background:
    radial-gradient(120% 80% at 15% 0%, rgba(255,255,255,.55), rgba(255,255,255,0) 50%),
    linear-gradient(150deg, rgba(255,255,255,.26), rgba(255,255,255,.04));
  -webkit-backdrop-filter: blur(calc(var(--size) * .1)) saturate(170%);
          backdrop-filter: blur(calc(var(--size) * .1)) saturate(170%);
  border: 1px solid rgba(255,255,255,.85);
  box-shadow:
    inset 0 1px 1px rgba(255,255,255,.95),
    inset 0 calc(var(--size) * -.06) calc(var(--size) * .12) rgba(255,255,255,.18),
    0 calc(var(--size) * .1) calc(var(--size) * .22) calc(var(--size) * -.12) hsl(var(--bg-h) 40% 20% / .35);
}
.aj-gicon > .aj-i {
  position: relative; z-index: 2; width: 40%; height: 40%;
  transform: translate(6%, 6%); stroke-width: 2;
  filter: drop-shadow(0 1px 1.5px color-mix(in srgb, var(--g2) 55%, #000 45%)) drop-shadow(0 2px 6px color-mix(in srgb, var(--g2) 80%, transparent));
}
.aj-gicon > b, .aj-gicon > span { position: relative; z-index: 2; transform: translate(6%, 6%); font: 800 calc(var(--size) * .3)/1 var(--font-display); text-shadow: 0 1px 2px color-mix(in srgb, var(--g2) 70%, #000 20%); }

/* flat: one tinted glass tile, no back shape */
.aj-gicon--flat::before { inset: 0; transform: none; border-radius: calc(var(--size) * .3); opacity: .9; }
.aj-gicon--flat::after { inset: 0; border-radius: calc(var(--size) * .3); background: radial-gradient(120% 80% at 15% 0%, rgba(255,255,255,.6), rgba(255,255,255,0) 55%), linear-gradient(150deg, rgba(255,255,255,.3), rgba(255,255,255,.05)); }
.aj-gicon--flat > .aj-i, .aj-gicon--flat > b, .aj-gicon--flat > span { transform: none; }
/* clear: colourless glass, glyph in ink */
.aj-gicon--clear { --g1: rgba(255,255,255,.7); --g2: hsl(var(--bg-h) 40% 80% / .6); color: var(--ink); }
.aj-gicon--clear > .aj-i { filter: none; }

.aj-gicon--peach { --g1: var(--soft-peach-1); --g2: var(--soft-peach-2); }
.aj-gicon--lilac { --g1: var(--soft-lilac-1); --g2: var(--soft-lilac-2); }
.aj-gicon--sky   { --g1: var(--soft-sky-1);   --g2: var(--soft-sky-2); }
.aj-gicon--mint  { --g1: var(--soft-mint-1);  --g2: var(--soft-mint-2); }
.aj-gicon--rose  { --g1: var(--soft-rose-1);  --g2: var(--soft-rose-2); }
.aj-gicon--lemon { --g1: var(--soft-lemon-1); --g2: var(--soft-lemon-2); }
.aj-gicon--sm { --size: 44px; } .aj-gicon--lg { --size: 88px; } .aj-gicon--xl { --size: 120px; }
.aj-gicon--sm > .aj-i { width: 46%; height: 46%; }

/* Poker-chip coin: colour via --c on the element (or coin-1..4 modifiers) */
.aj-coin {
  --c: var(--coin-1); --size: 72px;
  position: relative; display: inline-grid; place-items: center; flex: none;
  width: var(--size); height: var(--size); border-radius: 50%;
  color: #fff; font: 800 calc(var(--size) * .4)/1 var(--font-display); letter-spacing: -.03em;
  background:
    radial-gradient(circle at 35% 28%, rgba(255,255,255,.55), transparent 42%),
    radial-gradient(circle at 50% 50%, color-mix(in srgb, var(--c) 85%, #fff) 0%, var(--c) 60%, color-mix(in srgb, var(--c) 70%, #000) 100%);
  box-shadow:
    inset 0 -4px 8px color-mix(in srgb, var(--c) 60%, #000),
    inset 0 3px 4px rgba(255,255,255,.45),
    0 14px 26px -10px color-mix(in srgb, var(--c) 75%, transparent),
    0 4px 0 color-mix(in srgb, var(--c) 55%, #000);
  text-shadow: 0 2px 0 color-mix(in srgb, var(--c) 55%, #000);
}
/* white notches on the rim */
.aj-coin::before {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  background: repeating-conic-gradient(from 11deg, rgba(255,255,255,.95) 0 22deg, transparent 22deg 60deg);
  -webkit-mask: radial-gradient(circle, transparent 66%, #000 67%, #000 96%, transparent 97%);
          mask: radial-gradient(circle, transparent 66%, #000 67%, #000 96%, transparent 97%);
}
/* raised inner disc */
.aj-coin::after {
  content: ""; position: absolute; inset: 20%; border-radius: 50%;
  box-shadow: inset 0 2px 3px color-mix(in srgb, var(--c) 50%, #000), 0 1px 0 rgba(255,255,255,.35);
}
.aj-coin > * { position: relative; z-index: 1; }
.aj-coin .aj-i { width: 42%; height: 42%; stroke-width: 2.2; filter: drop-shadow(0 2px 0 color-mix(in srgb, var(--c) 55%, #000)); }
.aj-coin--1 { --c: var(--coin-1); } .aj-coin--2 { --c: var(--coin-2); }
.aj-coin--3 { --c: var(--coin-3); } .aj-coin--4 { --c: var(--coin-4); }
.aj-coin--sm { --size: 48px; } .aj-coin--lg { --size: 96px; }

/* Frosted hexagon badge */
.aj-hex {
  --size: 72px; position: relative; display: inline-grid; place-items: center; flex: none;
  width: var(--size); height: calc(var(--size) * .92); color: var(--ink);
  font: 800 calc(var(--size) * .36)/1 var(--font-display);
  filter: drop-shadow(0 12px 14px hsl(var(--bg-h) 40% 20% / .28));
}
.aj-hex::before {
  content: ""; position: absolute; inset: 0;
  clip-path: polygon(25% 2%, 75% 2%, 99% 50%, 75% 98%, 25% 98%, 1% 50%);
  background: linear-gradient(160deg, #fff 0%, hsl(var(--bg-h) 30% 88%) 100%);
  box-shadow: inset 0 0 0 2px #fff;
}
.aj-hex::after {
  content: ""; position: absolute; inset: 8%;
  clip-path: polygon(25% 2%, 75% 2%, 99% 50%, 75% 98%, 25% 98%, 1% 50%);
  background: linear-gradient(340deg, #fff, hsl(var(--bg-h) 25% 92%));
}
.aj-hex > * { position: relative; z-index: 1; color: hsl(var(--bg-h) 40% 18%); }
.aj-hex .aj-i { width: 44%; height: 44%; stroke-width: 2.2; }

/* Keycap tile: white glossy rounded square (the "24" and target icon tiles) */
.aj-key {
  --size: 72px; display: inline-grid; place-items: center; flex: none;
  width: var(--size); height: var(--size); border-radius: calc(var(--size) * .26);
  color: hsl(var(--bg-h) 45% 14%); font: 800 calc(var(--size) * .42)/1 var(--font-display); letter-spacing: -.03em;
  background: linear-gradient(170deg, #fff 0%, hsl(var(--bg-h) 25% 93%) 100%);
  border: 1px solid #fff;
  box-shadow: inset 0 -3px 0 hsl(var(--bg-h) 20% 84%), inset 0 2px 0 #fff, var(--shadow-key);
}
.aj-key .aj-i { width: 50%; height: 50%; stroke-width: 2.3; }
.aj-key--sm { --size: 44px; } .aj-key--lg { --size: 96px; }
.aj-key[aria-pressed="true"], .aj-key.is-active {
  background: linear-gradient(170deg, color-mix(in srgb, var(--accent) 55%, #fff), var(--accent));
  color: var(--accent-ink); border-color: color-mix(in srgb, var(--accent) 50%, #fff);
  box-shadow: inset 0 -3px 0 color-mix(in srgb, var(--accent) 70%, #000), inset 0 2px 0 rgba(255,255,255,.7), 0 10px 22px -8px var(--accent);
}

/* Jelly tile: thick refractive gradient glass block with coloured glow under it */
.aj-jelly {
  --j1: var(--jelly-a1); --j2: var(--jelly-a2); --size: 160px;
  position: relative; display: grid; place-items: center; isolation: isolate;
  width: var(--size); aspect-ratio: 1; border-radius: calc(var(--size) * .16);
  color: #fff;
  background:
    radial-gradient(120% 90% at 20% 0%, rgba(255,255,255,.55), transparent 50%),
    linear-gradient(140deg, color-mix(in srgb, var(--j1) 78%, #fff), color-mix(in srgb, var(--j2) 78%, #fff));
  border: 2px solid rgba(255,255,255,.7);
  box-shadow:
    inset 0 0 0 6px rgba(255,255,255,.18),
    inset 0 8px 14px rgba(255,255,255,.5),
    inset 0 -10px 18px color-mix(in srgb, var(--j2) 70%, #fff 0%),
    0 2px 0 rgba(255,255,255,.6);
}
.aj-jelly::before { /* glow pooled beneath */
  content: ""; position: absolute; z-index: -1; inset: 18% 6% -14% 6%; border-radius: inherit;
  background: linear-gradient(140deg, var(--j1), var(--j2)); filter: blur(28px); opacity: .5;
}
.aj-jelly::after { /* glint */
  content: ""; position: absolute; right: 12%; bottom: 12%; width: 14%; height: 7%; border-radius: 50%;
  background: rgba(255,255,255,.85); transform: rotate(-35deg); filter: blur(.5px);
}
.aj-jelly .aj-i { width: 34%; height: 34%; stroke-width: 1.8; filter: drop-shadow(0 3px 6px rgba(0,0,0,.18)); }
.aj-jelly--b { --j1: var(--jelly-b1); --j2: var(--jelly-b2); }
.aj-jelly--c { --j1: var(--jelly-c1); --j2: var(--jelly-c2); }
.aj-jelly--clear {
  --j1: rgba(255,255,255,.35); --j2: rgba(255,255,255,.08);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); color: var(--ink);
}
.aj-jelly--clear::before { opacity: .25; background: var(--accent); }
.aj-jelly--sm { --size: 88px; } .aj-jelly--md { --size: 120px; }

/* ---------- 5. Controls -------------------------------------------------- */
.aj-btn {
  --btn-bg: var(--accent); --btn-ink: var(--accent-ink);
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  min-height: 48px; padding: .75rem 1.4rem; border-radius: var(--r-pill);
  font: 700 1rem/1 var(--font-body); text-decoration: none; cursor: pointer; white-space: nowrap;
  color: var(--btn-ink); border: 1px solid color-mix(in srgb, var(--btn-bg) 40%, #fff);
  background: linear-gradient(180deg, color-mix(in srgb, var(--btn-bg) 70%, #fff) 0%, var(--btn-bg) 100%);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.7), 0 12px 24px -12px var(--btn-bg);
  transition: transform .15s ease, box-shadow .15s ease;
}
.aj-btn:hover { transform: translateY(-1px); box-shadow: inset 0 1px 0 rgba(255,255,255,.7), 0 16px 30px -12px var(--btn-bg); }
.aj-btn:active { transform: translateY(1px); }
.aj-btn--glass {
  color: var(--ink); border: 1px solid var(--glass-stroke);
  background: linear-gradient(145deg, var(--glass-hi), var(--glass-lo));
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  box-shadow: inset 0 1px 0 var(--glass-highlight), 0 10px 24px -14px hsl(var(--bg-h) 40% 20% / .5);
}
.aj-btn--dark { --btn-bg: hsl(var(--bg-h) 30% 30%); --btn-ink: #fff; }
.aj-btn--icon { width: 48px; padding: 0; }
.aj-btn--sm { min-height: 38px; padding: .5rem 1rem; font-size: .9rem; }

/* Frosted pill / tag (like "Blur Recipes", "Shadow soft") */
.aj-pill {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .7rem 1.2rem; border-radius: var(--r-md);
  font-weight: 600; color: var(--ink);
  background: linear-gradient(160deg, var(--glass-solid), var(--glass-lo));
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border: 1px solid var(--glass-stroke);
  box-shadow: inset 0 1px 0 var(--glass-highlight), 0 8px 18px -12px hsl(var(--bg-h) 40% 20% / .5);
}
.aj-pill--round { border-radius: var(--r-pill); }
.aj-pill--accent {
  background: linear-gradient(160deg, color-mix(in srgb, var(--accent) 22%, #fff), color-mix(in srgb, var(--accent) 35%, transparent));
  color: var(--ink);
}
.aj-tag { display: inline-flex; align-items: center; gap: .4rem; padding: .3rem .7rem; border-radius: var(--r-pill); font-size: var(--fs-small); font-weight: 600; color: var(--ink-soft); background: var(--glass-lo); border: 1px solid var(--glass-stroke); }

/* Glass progress meter */
.aj-meter { --value: 60%; height: 12px; border-radius: var(--r-pill); background: rgba(255,255,255,.85); overflow: hidden; box-shadow: inset 0 1px 2px rgba(0,0,0,.15); }
.aj-meter::before { content: ""; display: block; height: 100%; width: var(--value); border-radius: inherit; background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 70%, #fff), var(--accent)); box-shadow: 0 0 12px var(--accent); }

/* Segmented control / tabs */
.aj-segment { justify-self: start; width: fit-content; display: inline-flex; gap: 4px; padding: 5px; border-radius: var(--r-pill); background: var(--glass-lo); border: 1px solid var(--glass-stroke); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); flex-wrap: wrap; }
.aj-segment button { border: 0; background: transparent; color: var(--ink-soft); font: 600 .95rem/1 var(--font-body); padding: .7rem 1.1rem; border-radius: var(--r-pill); cursor: pointer; }
.aj-segment button[aria-selected="true"] { color: var(--ink); background: var(--glass-solid); box-shadow: inset 0 1px 0 var(--glass-highlight), 0 6px 14px -8px hsl(var(--bg-h) 40% 20% / .6); }

/* Inputs */
.aj-input { width: 100%; min-height: 48px; padding: .75rem 1.1rem; border-radius: var(--r-md); font: 500 1rem var(--font-body); color: var(--ink); background: var(--glass-solid); border: 1px solid var(--glass-stroke); box-shadow: inset 0 2px 4px hsl(var(--bg-h) 30% 20% / .08); }
.aj-input::placeholder { color: var(--ink-faint); }

/* Code window */
.aj-code { font: 500 .9rem/1.7 ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace; overflow-x: auto; padding: 1.25rem 1.5rem; margin: 0; color: var(--k8); }
.aj-code .k { color: color-mix(in srgb, var(--accent) 80%, #fff); } .aj-code .s { color: #ffd59a; } .aj-code .c { color: rgba(255,255,255,.45); }
.aj-window-bar { display: flex; gap: 7px; padding: 14px 18px 0; }
.aj-window-bar span { width: 11px; height: 11px; border-radius: 50%; background: rgba(255,255,255,.3); }

/* ---------- 6. Layout helpers ------------------------------------------- */
.aj-container { width: min(100% - 2.5rem, var(--container)); margin-inline: auto; }
.aj-section { padding-block: calc(var(--section-gap) / 2); }
.aj-stack { display: grid; gap: var(--space); }
.aj-row { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space); }
.aj-grid { display: grid; gap: var(--space); grid-template-columns: repeat(auto-fit, minmax(min(100%, var(--min, 260px)), 1fr)); }
.aj-lede { font-size: clamp(1.1rem, .6vw + .95rem, 1.3rem); color: var(--ink-soft); max-width: 60ch; }
.aj-muted { color: var(--ink-soft); }

/* Floating glass nav */
.aj-nav-wrap { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50; padding-top: 14px; }
.aj-nav { display: flex; align-items: center; gap: 1rem; padding: .55rem .6rem .55rem 1.25rem; border-radius: var(--r-pill); }
.aj-nav .aj-brand { display: flex; align-items: center; gap: .6rem; font: 800 1.15rem/1 var(--font-display); text-decoration: none; letter-spacing: -.02em; }
.aj-nav ul { display: flex; gap: .25rem; list-style: none; margin: 0 auto; padding: 0; }
.aj-nav ul a { display: block; padding: .6rem .9rem; border-radius: var(--r-pill); text-decoration: none; font-weight: 600; font-size: .95rem; color: var(--ink-soft); }
.aj-nav ul a:hover { color: var(--ink); background: var(--glass-lo); }
.aj-nav .aj-nav-actions { display: flex; gap: .5rem; align-items: center; }
.aj-nav-toggle { display: none; }
@media (max-width: 900px) {
  .aj-nav ul, .aj-nav .aj-nav-actions .aj-btn--glass:not(.aj-btn--icon) { display: none; }
  .aj-nav { gap: .5rem; padding-left: 1rem; }
  .aj-nav .aj-nav-actions { margin-left: auto; gap: .35rem; }
  .aj-nav-toggle { display: inline-flex; }
  .aj-nav.is-open { flex-wrap: wrap; border-radius: var(--r-lg); }
  .aj-nav.is-open ul { display: grid; width: 100%; order: 3; padding: .5rem 0; }
}

/* Logo strip */
.aj-logos { padding: 1.4rem 2rem; border-radius: var(--r-pill); display: flex; align-items: center; flex-wrap: wrap; justify-content: center; gap: clamp(1.5rem, 4vw, 3.5rem); color: var(--ink-soft); font: 800 1.3rem/1 var(--font-display); letter-spacing: -.02em; }

/* Footer */
.aj-footer { padding-block: 3rem; margin-top: var(--section-gap); }
.aj-footer h4 { font-size: .95rem; margin-bottom: .8rem; }
.aj-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .45rem; }
.aj-footer a { color: var(--ink-soft); text-decoration: none; font-size: .95rem; }
.aj-footer a:hover { color: var(--ink); }

/* AJ_Modern_UI theme: EMBER — warm slate with signal-red action. Bold comms/platform energy. */
:root {
  --bg-h: 220;
  --accent: #ff4d5e; --accent-ink: #ffffff; --accent-2: #ffb547;
  --jelly-a1: #ff9a5a; --jelly-a2: #ff3d61;
  --jelly-b1: #ffcf5a; --jelly-b2: #ff7a3d;
  --jelly-c1: var(--k9); --jelly-c2: var(--k10);
  --coin-1: #e8364a; --coin-2: var(--k11); --coin-3: #f2a02a; --coin-4: var(--k12);
}