/* VERA · css/interactions.css — styles for js/interactions.js (tester, compare, sizes, sparkle cursor, reveals).
   Every class is prefixed vx-. Tokens fall back to the VERA palette when vera.css is absent. */

.vx,.vx-head,.vx-wrap{
  --vx-ink:var(--ink,#0a0a0b); --vx-ink2:var(--ink2,#141417); --vx-paper:var(--paper,#fff); --vx-mute:var(--mute,#8b8b93);
  --vx-line:var(--line,#26262b); --vx-pass:var(--pass,#2bff88); --vx-gold:var(--gold,#e9c46a); --vx-body:var(--body,#bdbdc6);
  --vx-ease:cubic-bezier(.2,.7,.2,1);
}
.vx{position:relative;font-family:Heebo,system-ui,sans-serif;color:var(--vx-paper);margin-top:8px}
.vx *,.vx *::before,.vx *::after{box-sizing:border-box}
.vx [hidden]{display:none!important}
.vx :focus-visible{outline:2px solid var(--vx-pass);outline-offset:3px}
.vx .num,.vx b{font-variant-numeric:tabular-nums}
.vx-pad,.vx-wrap{max-width:1120px;margin-inline:auto;padding-inline:16px}
.vx-sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.vx-note{font-size:12px;line-height:1.55;color:#6d6d75}

/* heading block (only rendered into an empty section) */
.vx-head{margin-bottom:24px}
.vx-eyebrow{font-size:13px;font-weight:700;color:var(--vx-pass);letter-spacing:.14em;margin-bottom:8px}
.vx-h2{font-family:"Secular One",Heebo,sans-serif;font-weight:400;font-size:clamp(30px,6vw,46px);line-height:1.1;margin:0 0 12px}
.vx-lead{color:var(--vx-body);font-size:17px;max-width:36em;margin:0}

/* buttons, chips, segmented control */
.vx-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:13px 20px;border-radius:12px;border:0;font:900 16px Heebo,sans-serif;text-decoration:none;cursor:pointer;transition:transform .15s,background .2s,border-color .2s,color .2s}
.vx-btn:active{transform:scale(.98)}
.vx-btn-pass{background:var(--vx-pass);color:var(--vx-ink)}
.vx-btn-ghost{background:transparent;color:var(--vx-paper);border:1.5px solid #3a3a42}
.vx-btn-ghost:hover{border-color:var(--vx-pass);color:var(--vx-pass)}
.vx-seg{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:4px;background:#111114;border:1px solid var(--vx-line);border-radius:12px;padding:4px}
.vx-seg button{min-height:44px;border:0;border-radius:9px;background:transparent;color:#cfcfd6;font:700 16px Heebo,sans-serif;cursor:pointer;transition:background .2s,color .2s}
.vx-seg button[aria-pressed="true"]{background:var(--vx-paper);color:var(--vx-ink)}
.vx-chips{display:flex;flex-wrap:wrap;gap:8px}
.vx-chip{min-width:52px;min-height:42px;padding:8px 14px;border-radius:999px;border:1.5px solid #3a3a42;background:transparent;color:var(--vx-paper);font:700 16px Heebo,sans-serif;font-variant-numeric:tabular-nums;cursor:pointer;transition:background .15s,border-color .15s,color .15s}
.vx-chip:hover{border-color:#5a5a64}
.vx-chip[aria-pressed="true"]{background:var(--vx-pass);border-color:var(--vx-pass);color:var(--vx-ink)}

/* ================= 1. tester ================= */
.vx-t{display:grid;gap:16px}
.vx-t-stage{position:relative;aspect-ratio:4/3;border-radius:18px;overflow:hidden;border:1px solid var(--vx-line);direction:ltr;touch-action:pan-y;-webkit-user-select:none;user-select:none;
  background:radial-gradient(70% 70% at 32% 64%,#22222a 0%,#0d0d10 58%,#060608 100%)}
.vx-t-cv,.vx-t-svg{position:absolute;inset:0;width:100%;height:100%;display:block}
.vx-t-svg{pointer-events:none;overflow:visible}
.vx-t-hit{fill:transparent;pointer-events:all;cursor:grab;touch-action:none}
.vx-t.is-drag .vx-t-hit{cursor:grabbing}
.vx-t-collar{fill:var(--vx-pass)}
.vx-t-pl{fill:#1c1c21;transition:fill .12s}
.vx-t-pl.on{fill:var(--vx-pass)}
.vx-t-brand{font:700 9px Heebo,sans-serif;letter-spacing:2px;fill:#6f6f78}
.vx-t-aim{fill:none;stroke:var(--vx-pass);stroke-width:1.6;stroke-dasharray:6 7;opacity:.75;transform-box:fill-box;transform-origin:center;animation:vxSpin 9s linear infinite;transition:opacity .3s}
.vx-t-ring{fill:none;stroke:var(--vx-pass);stroke-width:2.2;opacity:0;transform-box:fill-box;transform-origin:center}
.vx-t-ring.on{opacity:1;animation:vxRing .8s ease-out infinite}
.vx-t-hint{position:absolute;left:46%;top:13%;transform:translateX(-50%);direction:rtl;white-space:nowrap;pointer-events:none;font-weight:700;font-size:13px;color:var(--vx-pass);
  background:rgba(0,0,0,.66);border:1px solid rgba(43,255,136,.45);padding:5px 11px;border-radius:999px;animation:vxBob 1.8s ease-in-out infinite;transition:opacity .3s}
.vx-t.is-used .vx-t-hint,.vx-t.is-used .vx-t-aim{opacity:0}
.vx-t-stamp{position:absolute;left:50%;top:7%;text-align:center;pointer-events:none;opacity:0;transform:translateX(-50%) scale(1.6) rotate(-8deg)}
.vx-t.is-pass .vx-t-stamp{opacity:1;transform:translateX(-50%) scale(1) rotate(-8deg);transition:transform .38s cubic-bezier(.2,1.6,.4,1),opacity .2s}
.vx-t-stamp b{display:block;font:900 22px/1 Heebo,sans-serif;letter-spacing:.06em;color:var(--vx-ink);background:var(--vx-pass);padding:7px 14px;border-radius:8px;box-shadow:0 0 28px rgba(43,255,136,.55)}
.vx-t-stamp small{display:block;margin-top:5px;font-size:11px;font-weight:700;letter-spacing:.24em;color:var(--vx-pass)}
.vx-t-panel{display:flex;flex-direction:column;gap:12px}
.vx-t-dev{direction:ltr;background:#0d0d10;border:1px solid #2e2e35;border-radius:16px;padding:14px 14px 16px;box-shadow:inset 0 1px 0 rgba(255,255,255,.04),0 16px 40px rgba(0,0,0,.45);transition:border-color .2s,box-shadow .2s}
.vx-t.is-test .vx-t-dev{border-color:rgba(43,255,136,.55);box-shadow:inset 0 1px 0 rgba(255,255,255,.04),0 0 0 3px rgba(43,255,136,.12),0 16px 40px rgba(0,0,0,.45)}
.vx-t-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.vx-t-lbl{font-size:11px;font-weight:700;letter-spacing:.16em;color:var(--vx-mute)}
.vx-t-snd{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;border:1px solid #2e2e35;background:#17171b;color:#8b8b93;cursor:pointer;transition:color .2s,border-color .2s}
.vx-t-snd[aria-pressed="true"]{color:var(--vx-pass);border-color:rgba(43,255,136,.5)}
.vx-t-leds{display:flex;gap:6px;margin:12px 0 6px}
.vx-t-leds i{flex:1;height:22px;border-radius:4px;background:#1c1c21;box-shadow:inset 0 1px 2px rgba(0,0,0,.6);transition:background .12s,box-shadow .12s}
.vx-t-leds i.on{background:var(--vx-pass);box-shadow:0 0 12px rgba(43,255,136,.7)}
.vx-t-scale{display:flex;justify-content:space-between;font-size:10px;font-weight:700;letter-spacing:.14em;color:#5d5d66}
.vx-t-res{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:12px;padding:10px 12px;border-radius:10px;background:#141418;border:1px solid var(--vx-line)}
.vx-t-res b{font:900 24px/1 Heebo,sans-serif;letter-spacing:.12em;color:#2c2c33;transition:color .2s,text-shadow .2s}
.vx-t-res span{font-weight:900;font-size:13px;padding:4px 10px;border-radius:6px;background:#1f1f24;color:#55555d;transition:background .2s,color .2s}
.vx-t.is-pass .vx-t-res b{color:var(--vx-pass);text-shadow:0 0 18px rgba(43,255,136,.6)}
.vx-t.is-pass .vx-t-res span{background:var(--vx-pass);color:var(--vx-ink)}
.vx-t-status{margin:0;min-height:2.6em;font-weight:700;font-size:17px;line-height:1.3}
.vx-t.is-pass .vx-t-status{color:var(--vx-pass)}
.vx-t-acts{display:flex;flex-wrap:wrap;gap:10px}
.vx-t-acts .vx-btn{flex:1 1 150px}

/* ================= 2. compare ================= */
.vx-c{display:grid;gap:18px}
.vx-c-stage{--p:50;position:relative;aspect-ratio:1/1;max-height:520px;width:100%;border-radius:18px;overflow:hidden;border:1px solid var(--vx-line);direction:ltr;touch-action:pan-y;-webkit-user-select:none;user-select:none;cursor:ew-resize;
  background:radial-gradient(60% 55% at 50% 50%,#24242c 0%,#0c0c0f 62%,#060608 100%)}
.vx-c-layer{position:absolute;inset:0}
.vx-c-moi{clip-path:inset(0 0 0 calc(var(--p) * 1%));-webkit-clip-path:inset(0 0 0 calc(var(--p) * 1%));background:radial-gradient(60% 55% at 50% 50%,#262330 0%,#0c0c10 62%,#060608 100%)}
.vx-c-cv{position:absolute;inset:0;width:100%;height:100%;display:block}
.vx-c-tag{position:absolute;top:12px;direction:rtl;pointer-events:none;padding:8px 11px;border-radius:10px;background:rgba(0,0,0,.62);border:1px solid #2e2e35;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.vx-c-tag-d{left:12px}
.vx-c-tag-m{right:12px;border-color:rgba(43,255,136,.5)}
.vx-c-tag small{display:block;font-size:12px;font-weight:700;color:#cfcfd6}
.vx-c-tag b{display:block;font:900 clamp(20px,5.6vw,30px)/1.1 Heebo,sans-serif}
.vx-c-tag-d b{color:#8a8a92} /* natural-diamond comparison: labelled, not struck through */
.vx-c-tag-m b{color:var(--vx-pass)}
.vx-c-tag span{display:block;font-size:11px;color:var(--vx-mute)}
.vx-c-handle{position:absolute;top:0;bottom:0;left:calc(var(--p) * 1%);width:0;outline:none;touch-action:none}
.vx-c-handle::before{content:"";position:absolute;top:0;bottom:0;left:-1px;width:2px;background:var(--vx-pass);box-shadow:0 0 12px rgba(43,255,136,.8)}
.vx-c-knob{position:absolute;top:50%;left:0;display:grid;place-items:center;width:46px;height:46px;border-radius:50%;transform:translate(-50%,-50%);background:var(--vx-pass);color:var(--vx-ink);box-shadow:0 0 0 6px rgba(43,255,136,.18),0 8px 22px rgba(0,0,0,.5)}
.vx-c-handle:focus-visible .vx-c-knob{box-shadow:0 0 0 3px var(--vx-ink),0 0 0 6px var(--vx-pass)}
.vx-c-hint{position:absolute;left:50%;bottom:12px;transform:translateX(-50%);direction:rtl;white-space:nowrap;pointer-events:none;font-size:13px;font-weight:700;color:#cfcfd6;background:rgba(0,0,0,.6);border:1px solid #2e2e35;border-radius:999px;padding:5px 12px;transition:opacity .3s}
.vx-c.is-used .vx-c-hint{opacity:0}
.vx-c-tbl{width:100%;border-collapse:separate;border-spacing:0;direction:rtl;background:var(--vx-ink2);border:1px solid var(--vx-line);border-radius:16px;overflow:hidden;font-size:15px}
.vx-c-tbl th,.vx-c-tbl td{padding:13px 12px;text-align:right;vertical-align:top;border-bottom:1px solid var(--vx-line)}
.vx-c-tbl tbody tr:last-child>*{border-bottom:0}
.vx-c-tbl thead th{font-size:13px;font-weight:500;color:var(--vx-mute)}
.vx-c-tbl thead .us{color:var(--vx-pass)}
.vx-c-tbl tbody th{width:32%;font-weight:700}
.vx-c-tbl tbody th small{display:block;font-size:12px;font-weight:400;color:var(--vx-mute)}
.vx-c-tbl td b{font-weight:900;font-size:16px}
.vx-c-tbl td.win b{color:var(--vx-pass)}
.vx-c-tbl td.them b{color:#8a8a92}
.vx-c-tbl td em{font-style:normal;font-size:11px;font-weight:900;white-space:nowrap;background:var(--vx-pass);color:var(--vx-ink);border-radius:5px;padding:1px 6px;margin-inline-start:6px;vertical-align:2px}
.vx-bar{display:block;height:6px;margin-top:8px;border-radius:3px;background:#1e1e23;overflow:hidden}
.vx-bar i{display:block;width:0;height:100%;border-radius:inherit;background:#55555d;transition:width 1.1s var(--vx-ease)}
.vx-c-tbl td.us .vx-bar i{background:var(--vx-pass);box-shadow:0 0 8px rgba(43,255,136,.5)}
.vx-c-tbl.is-in .vx-bar i{width:calc(var(--w) * 100%)}
.vx-c-tbl tbody tr:nth-child(2) .vx-bar i{transition-delay:.15s}
.vx-c-tbl tbody tr:nth-child(3) .vx-bar i{transition-delay:.3s}
.vx-c-save{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:10px;padding:16px 18px;border-radius:16px;background:var(--vx-pass);color:var(--vx-ink)}
.vx-c-save span{font:400 20px "Secular One",Heebo,sans-serif}
.vx-c-save b{font:900 30px Heebo,sans-serif}

/* ================= 3. sizes ================= */
.vx-s{display:grid;gap:16px}
.vx-s-stage{position:relative;aspect-ratio:1/1;border-radius:18px;overflow:hidden;border:1px solid var(--vx-line);direction:ltr;
  background:radial-gradient(80% 70% at 50% 40%,#1b1b21 0%,#08080a 75%)}
.vx-s-svg{display:block;width:100%;height:100%;transition:opacity .18s}
.vx-s.is-swap .vx-s-svg{opacity:0}
.vx-s-cap{position:absolute;right:12px;bottom:10px;direction:rtl;font-size:11px;font-weight:700;color:var(--vx-mute);background:rgba(0,0,0,.55);padding:3px 8px;border-radius:999px}
.vx-s-panel{display:flex;flex-direction:column;gap:14px}
.vx-s-ctl{display:flex;flex-direction:column;gap:14px}
.vx-s-lbl{display:block;margin-bottom:8px;font-size:13px;font-weight:700;color:var(--vx-mute)}
.vx-step{display:inline-flex;align-items:center;gap:4px;padding:3px;border-radius:999px;border:1.5px solid #3a3a42}
.vx-step button{width:40px;height:40px;border-radius:50%;border:0;background:#1a1a1f;color:var(--vx-paper);font:900 20px/1 Heebo,sans-serif;cursor:pointer}
.vx-step button:hover{background:#24242a}
.vx-step output{min-width:78px;text-align:center;font-weight:900;font-variant-numeric:tabular-nums}
.vx-s-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.vx-s-stats div{padding:12px 10px;border-radius:14px;background:var(--vx-ink2);border:1px solid var(--vx-line)}
.vx-s-stats b{display:block;font:900 clamp(24px,6.5vw,34px)/1.05 Heebo,sans-serif}
.vx-s-stats div:nth-child(2) b{color:var(--vx-pass)}
.vx-s-stats span{display:block;margin-top:4px;font-size:12px;color:var(--vx-mute)}
.vx-s-fit{display:flex;align-items:center;gap:9px;margin:0;font-weight:700;font-size:15px;line-height:1.35}
.vx-s-fit i{flex:none;width:10px;height:10px;border-radius:50%;background:var(--vx-pass);box-shadow:0 0 10px var(--vx-pass)}
.vx-s-fit[data-tone="warn"] i{background:var(--vx-gold);box-shadow:0 0 10px var(--vx-gold)}
.vx-s-cta{align-self:flex-start}
.vx-tw{opacity:0;animation:vxTw 2.6s ease-in-out infinite;animation-delay:var(--d,0s)}

/* desktop */
@media (min-width:820px){
  .vx-t{grid-template-columns:1.35fr 1fr;align-items:center;gap:28px}
  .vx-c{grid-template-columns:1.2fr 1fr;align-items:center;column-gap:28px}
  .vx-c-stage{grid-row:span 2;aspect-ratio:1/1}
  .vx-c.is-solo{grid-template-columns:1fr}
  .vx-c.is-solo .vx-c-stage{aspect-ratio:16/9;grid-row:auto}
  .vx-s{grid-template-columns:1.1fr 1fr;align-items:center;gap:32px}
}

/* ================= 4. sparkle cursor ================= */
.vx-cursor{position:fixed;inset:0;width:100vw;height:100vh;pointer-events:none;z-index:70;mix-blend-mode:screen}

/* ================= 5. reveals ================= */
/* Uses the individual translate/scale properties so [data-tilt] cards keep their own transform.
   The transition only lives until .vx-done, then the element's own transitions come back. */
html.vx-reveals [data-reveal]:not(.vx-done){transition:opacity .7s var(--vx-ease,ease) var(--vx-delay,0ms),translate .7s var(--vx-ease,ease) var(--vx-delay,0ms),scale .7s var(--vx-ease,ease) var(--vx-delay,0ms)}
html.vx-reveals [data-reveal]:not(.is-in){opacity:0;translate:0 26px}
html.vx-reveals [data-reveal="fade"]:not(.is-in){translate:none}
html.vx-reveals [data-reveal="scale"]:not(.is-in){translate:none;scale:.94}
html.vx-reveals [data-reveal="start"]:not(.is-in){translate:26px 0}
html.vx-reveals [data-reveal="end"]:not(.is-in){translate:-26px 0}
html.vx-reveals{--vx-ease:cubic-bezier(.2,.7,.2,1)}

@keyframes vxSpin{to{transform:rotate(360deg)}}
@keyframes vxRing{0%{transform:scale(.7);opacity:1}100%{transform:scale(1.9);opacity:0}}
@keyframes vxBob{0%,100%{translate:0 0}50%{translate:0 -4px}}
@keyframes vxTw{0%,100%{opacity:0}45%,55%{opacity:1}}

@media (prefers-reduced-motion:reduce){
  .vx *,.vx *::before,.vx *::after{animation:none!important;transition-duration:.01ms!important;transition-delay:0s!important}
  .vx-tw{opacity:.85}
  .vx-t-ring.on{opacity:1}
  html.vx-reveals [data-reveal]{opacity:1!important;translate:none!important;scale:none!important;transition:none!important}
}