/*
 * Reconstitution calculator page (templates/page-calculator.php).
 *
 * The page own rules from design/calculator.html. Global rules live in
 * site.css. The two section rules at the end replace inline style attributes
 * the prototype used on its section tags.
 */

/* ---------- Hero ---------- */
.page-hero h1{font-size:clamp(34px,5.4vw,76px)}
.ruo-line{display:inline-flex;align-items:center;gap:10px;margin-top:26px;padding:10px 16px;border-radius:30px;background:#F4F5F7;border:1px solid var(--line);font:500 11.5px/1.3 var(--display);letter-spacing:.1em;text-transform:uppercase;color:var(--navy)}

/* ---------- Calculator ---------- */
.calc{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:start}
.c-in{display:grid;gap:14px}
.grp{border:1px solid var(--line);border-radius:22px;padding:24px 24px 22px;background:#fff}
.grp-h{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.grp-h h3{display:flex;align-items:center;gap:12px;font:400 18px/1.2 var(--display);text-transform:uppercase;letter-spacing:-.005em;color:var(--navy)}
.grp-h h3 .n{width:28px;height:28px;border-radius:50%;background:var(--navy);color:#fff;display:grid;place-items:center;font:500 12px/1 var(--display)}
.grp-h small{font-size:12.5px;color:var(--muted)}
.seg{display:flex;flex-wrap:wrap;gap:8px}
.seg button{min-width:76px;height:46px;padding:0 16px;border-radius:14px;border:1.5px solid var(--line);font:500 14px/1 var(--display);color:var(--navy);background:#fff;transition:border-color .3s,background-color .3s,color .3s}
.seg button:hover{border-color:#B9C1CE}
.seg button.on{background:var(--navy);border-color:var(--navy);color:#fff}
.seg button small{font-size:11px;opacity:.7;margin-left:4px}
.custom{display:none;align-items:center;gap:10px;margin-top:12px;height:52px;padding:0 18px;border:1.5px solid var(--navy);border-radius:14px;max-width:280px;box-shadow:0 0 0 4px rgba(10,31,68,.06)}
.custom.show{display:flex}
.custom input{flex:1;min-width:0;border:0;outline:0;font:500 17px var(--display);color:var(--navy);background:transparent}
.custom span{font:500 12px var(--display);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.custom.bad{border-color:#B4232C;box-shadow:0 0 0 4px rgba(180,35,44,.08)}

.c-out{position:sticky;top:110px;overflow:hidden;border-radius:26px;padding:30px;background:radial-gradient(420px 300px at 100% 0%,rgba(22,58,125,.6),transparent 70%),var(--ink);color:#AEBAD0}
.c-out .helm-o{position:absolute;right:-60px;bottom:-70px;width:260px;color:rgba(255,255,255,.035);pointer-events:none}
.c-out>*{position:relative}
.o-top{display:flex;justify-content:space-between;align-items:center;font:500 11px/1 var(--display);letter-spacing:.18em;text-transform:uppercase;color:#C9CED8}
.o-top em{font-style:normal;color:#7A879C}
.o-units{margin-top:22px;display:flex;align-items:baseline;gap:12px;color:#fff}
.o-units b{font:300 clamp(64px,7vw,92px)/.9 var(--display);letter-spacing:-.05em;font-variant-numeric:tabular-nums}
.o-units span{font:500 13px/1.3 var(--display);letter-spacing:.14em;text-transform:uppercase;color:#C9CED8}
.o-sub{font-size:13.5px;color:#9FB0CC;margin-top:8px}
/* Syringe: needle, glass barrel, stopper at the fill line, rod out to the thumb press */
.syr{margin:28px 0 8px}
.syr svg{display:block;width:100%;height:auto;overflow:visible}
.syr .glass{fill:rgba(255,255,255,.06)}
.syr .barrel{fill:none;stroke:rgba(255,255,255,.6);stroke-width:1.5}
.syr .fill{fill:url(#liq);transform-box:fill-box;transform-origin:left center;transition:transform .7s var(--ease)}
.syr .fill.over{fill:#C0444C}
.syr .tick{stroke:rgba(255,255,255,.5);stroke-width:1}
.syr .tick.maj{stroke:#fff}
.syr .tl{fill:#9FB0CC;font:500 9px var(--display);text-anchor:middle}
.syr .stopper{transition:transform .7s var(--ease)}
.syr .stp-body{fill:#1F2838;stroke:#3A475E;stroke-width:1}
.syr .stp-rib{stroke:#4A5873;stroke-width:1}
.syr .rod{fill:rgba(201,206,216,.28)}
.syr .rod-out{fill:#C9CED8}
.syr .flange,.syr .thumb{fill:#C9CED8}
.syr .hub{fill:rgba(255,255,255,.35)}
.syr .needle{stroke:#C9CED8;stroke-width:1.5;stroke-linecap:round}
.o-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:22px}
.o-box{padding:16px 16px 14px;border-radius:16px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.03)}
.o-box span{display:block;font:500 10px/1.3 var(--display);letter-spacing:.16em;text-transform:uppercase;color:#7A879C}
.o-box b{display:block;margin-top:8px;font:400 24px/1 var(--display);letter-spacing:-.02em;color:#fff;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.o-box b small{font-size:12px;letter-spacing:.06em;color:#9FB0CC;margin-left:4px}
.warn{display:none;gap:12px;align-items:flex-start;margin-top:16px;padding:14px 16px;border-radius:14px;background:rgba(192,68,76,.14);border:1px solid rgba(232,120,128,.4);font-size:13.5px;line-height:1.55;color:#F4D3D6}
.warn.show{display:flex}
.warn i{color:#F19AA1;margin-top:3px}
.o-note{display:flex;gap:10px;align-items:flex-start;margin-top:18px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);font-size:12.5px;line-height:1.55;color:#9FB0CC}
.o-note i{color:#fff;margin-top:2px}
.o-note b{color:#fff;font-weight:500}

/* ---------- Maths explainer ---------- */
.m-head{display:grid;grid-template-columns:1.2fr .8fr;gap:60px;align-items:end;margin-bottom:50px}
.m-head .display{margin-top:18px}
.m-head p{font-size:15.5px;line-height:1.75}
.eqs{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.eq{position:relative;overflow:hidden;padding:30px 28px;border-radius:24px;background:#F4F6F9;border:1px solid var(--line)}
.eq .idx{font:500 12px/1 var(--display);letter-spacing:.2em;color:var(--muted)}
.eq h4{font:400 21px/1.15 var(--display);text-transform:uppercase;letter-spacing:-.01em;color:var(--navy);margin:18px 0 16px}
.eq code{display:block;padding:14px 16px;border-radius:14px;background:#fff;border:1px solid var(--line);font:500 13.5px/1.5 var(--display);color:var(--navy)}
.eq p{font-size:14px;line-height:1.7;margin-top:14px}
.eq p b{color:var(--navy);font-weight:500}

/* ---------- Bacteriostatic water ---------- */
.bw{display:grid;grid-template-columns:1fr 300px;gap:60px;align-items:center;padding:50px;border-radius:30px;background:#F6F7F9;border:1px solid var(--line)}
.bw .display{margin:18px 0 18px}
.bw p{font-size:15.5px;line-height:1.75;max-width:460px}
.bw .btn{margin-top:28px}

@media (max-width:1080px){
  .calc{grid-template-columns:1fr}
  /* Not sticky here, but it must stay a positioned ancestor: the decorative
     helmet inside it is absolutely placed, and with position:static it resolves
     against a much wider ancestor and pushes the page sideways. */
  .c-out{position:relative;top:auto}
  .m-head{grid-template-columns:1fr;gap:20px}
  .eqs{grid-template-columns:1fr}
}
@media (max-width:640px){
  .grp{padding:20px 16px 18px}
  .grp-h{flex-direction:column;align-items:flex-start;gap:6px}
  .seg button{min-width:0;flex:1 1 calc(33.33% - 8px);padding:0 8px;font-size:13px}
  .custom{max-width:none}
  .c-out{padding:24px 20px}
  .bw{grid-template-columns:1fr;padding:30px 22px;gap:34px}
  .bw .card{max-width:320px}
  /* segmented buttons: even grid instead of a lone full-width "Other" */
  .seg{display:grid;grid-template-columns:repeat(3,1fr)}
  .seg:has(>button:nth-child(4):last-child){grid-template-columns:repeat(4,1fr)}
  .seg button{min-width:0;height:48px;padding:0 4px;line-height:1.15}
  .seg button small{display:block;margin:3px 0 0}
  /* syringe scale numbers: larger so they stay legible once the svg is scaled down */
  .syr .tl{font-size:13px}
}
@media (max-width:400px){
  .o-box{padding:14px 12px 12px}
  .o-box span{letter-spacing:.1em}
  .o-box b{font-size:21px}
  .o-box b small{margin-left:3px;white-space:nowrap;font-size:11px}
}

/* ---------- Mobile/tablet sticky result bar (results panel sits below the inputs here) ---------- */
.calc-bar{display:none}
@media (max-width:1080px){
  .calc-bar{position:fixed;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom,0px));z-index:90;max-width:560px;margin-inline:auto;display:grid;grid-template-columns:1fr auto;align-items:center;gap:6px 12px;padding:12px 12px 12px 20px;border-radius:24px;background:radial-gradient(260px 160px at 100% 0%,rgba(22,58,125,.6),transparent 70%),var(--ink);color:#fff;box-shadow:0 24px 50px -18px rgba(5,14,31,.6);transform:translateY(calc(100% + 40px));visibility:hidden;transition:transform .5s var(--ease),visibility 0s linear .5s}
  .calc-bar.show{transform:none;visibility:visible;transition:transform .5s var(--ease),visibility 0s}
  .cb-main{display:flex;align-items:baseline;gap:6px;min-width:0;font-variant-numeric:tabular-nums}
  .cb-main b{font:300 30px/1 var(--display);letter-spacing:-.03em;color:#fff}
  .cb-main span{font:500 10.5px/1 var(--display);letter-spacing:.14em;text-transform:uppercase;color:#C9CED8}
  .cb-sep{align-self:center;width:1px;height:22px;margin:0 8px;background:rgba(255,255,255,.2)}
  .calc-bar.over #cb-units{color:#F19AA1}
  .cb-go{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 16px;border-radius:30px;background:#fff;color:var(--navy);font:500 11px/1 var(--display);letter-spacing:.12em;text-transform:uppercase}
  .cb-note{grid-column:1/-1;display:flex;align-items:center;gap:7px;font-size:11.5px;line-height:1.3;color:#9FB0CC}
  .cb-note i{color:#fff;font-size:10px}
}
@media (prefers-reduced-motion:reduce){.calc-bar,.calc-bar.show{transition:none}}

/* ---------- Section chrome (inline styles in the prototype) ---------- */
.calc-sec{padding-bottom:110px}
.calc-maths{background:#fff;border-top:1px solid var(--line)}
.calc-bw{padding-top:10px;padding-bottom:110px}

/* The bacteriostatic water card is a live product card, so it keeps the shop
   card width the prototype's mock-up had. */
.bw #bw-card{min-width:0}
.bw-solo{grid-template-columns:1fr}