/* ============================================================
   Medcomed — shared design system (all pages)
   Dark clinical · Space Grotesk / Inter / IBM Plex Mono
   ============================================================ */
:root{
    /* LIGHT clinical theme */
    --paper:#12233b;                 /* primary text (dark ink) */
    --muted:rgba(18,35,59,.62);
    --faint:rgba(18,35,59,.34);
    --brand:#1f7fc0;                 /* medcomed medical-blue (chrome) */

    --ink:#eef3f9;                   /* page base (near-white) */
    --surface:#ffffff;               /* alt section */
    --line:rgba(18,35,59,.12);
    --card:#ffffff;
    --glass-bg:rgba(255,255,255,.6);
    --glass-border:rgba(18,35,59,.14);

    /* accent morphs on the home hero; safe default = HEALVISC violet */
    --accent:#7b53c9;
    --accent-glow:rgba(123,83,201,.42);
    --accent-ink:#ffffff;

    --font-display:'Space Grotesk',sans-serif;
    --font-body:'Inter',sans-serif;
    --font-mono:'IBM Plex Mono',monospace;

    --maxw:1200px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    background:var(--ink);
    color:var(--paper);
    font-family:var(--font-body);
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
    line-height:1.5;
}
img{max-width:100%;display:block}
a{color:inherit}
::selection{background:var(--brand);color:#fff}

.container{width:min(var(--maxw),92%);margin:0 auto}

/* ---------- shared type ---------- */
.eyebrow{
    font-family:var(--font-mono);font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;
    color:var(--brand);display:inline-flex;align-items:center;gap:.7rem;
}
.eyebrow::before{content:"";width:30px;height:1px;background:var(--brand)}
.section-title{
    font-family:var(--font-display);font-weight:700;line-height:1.02;letter-spacing:-.02em;
    font-size:clamp(2.1rem,5vw,3.4rem);
}
.section-title .faint{color:var(--brand);-webkit-text-stroke:0}
.lead{color:var(--muted);font-size:1.05rem;line-height:1.65;max-width:56ch}

.section{padding:clamp(4rem,9vw,7rem) 0;position:relative}
.section--alt{background:var(--surface)}

/* ---------- buttons ---------- */
.btn{
    display:inline-flex;align-items:center;gap:.8rem;cursor:pointer;text-decoration:none;
    font-family:var(--font-display);font-weight:600;font-size:.95rem;
    border-radius:100px;padding:.85rem 1.6rem;border:1px solid var(--glass-border);
    background:var(--glass-bg);color:var(--paper);transition:transform .3s,border-color .3s,background .3s;
}
.btn:hover{transform:translateY(-3px);border-color:var(--brand);background:rgba(255,255,255,.09)}
.btn--accent{background:var(--brand);color:#fff;border-color:transparent}
.btn--accent:hover{background:var(--brand);filter:brightness(1.1)}
.btn .dot{width:26px;height:26px;border-radius:50%;background:var(--brand);color:#fff;
    display:flex;align-items:center;justify-content:center;font-size:1rem;line-height:1}
.btn--accent .dot{background:#fff;color:var(--brand)}

/* ============================================================
   HEADER — transparent at top, glass background on scroll
   ============================================================ */
.site-header{
    position:fixed;top:0;left:0;width:100%;z-index:200;
    display:flex;align-items:center;justify-content:space-between;
    padding:1.6rem 4%;
    border-bottom:1px solid transparent;
    transition:background .35s ease,padding .35s ease,border-color .35s ease;
}
.site-header.scrolled{
    background:rgba(255,255,255,.82);
    backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    border-bottom-color:var(--line);
    box-shadow:0 8px 30px rgba(18,35,59,.06);
    padding:.85rem 4%;
}
.brand{display:flex;align-items:center;gap:.55rem;text-decoration:none;font-family:var(--font-display);
    font-weight:600;font-size:1.15rem;color:var(--paper)}
/* logo.png's own glyph colours don't work on both light and dark surfaces, so it's used purely as a
   mask shape and recoloured per-surface: medco blue on light chrome, white on the blue footer */
.brand-logo{display:inline-block;flex:0 0 auto;width:104px;aspect-ratio:186/65;
    background-color:var(--brand);transition:background-color .35s;
    -webkit-mask-image:url('img/logo.png');mask-image:url('img/logo.png');
    -webkit-mask-size:contain;mask-size:contain;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;-webkit-mask-position:left center;mask-position:left center}
.foot-brand .brand-logo{background-color:#fff}

.mainnav{display:flex;gap:.2rem;align-items:center}
.mainnav a{
    font-family:var(--font-mono);font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;
    color:var(--muted);text-decoration:none;padding:.5rem 1rem;border-radius:100px;
    transition:color .25s,background .25s;
}
.mainnav a:hover,.mainnav a.active{background:var(--brand);color:#fff}

.btn-contact{
    font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.08em;font-size:.7rem;
    text-decoration:none;color:#fff;background:var(--brand);border:1px solid transparent;
    padding:.7rem 1.4rem;border-radius:100px;transition:filter .3s,transform .3s;
}
.btn-contact:hover{filter:brightness(1.08);transform:translateY(-2px)}

.nav-toggle{
    display:none;width:46px;height:46px;border-radius:12px;cursor:pointer;
    background:var(--glass-bg);border:1px solid var(--glass-border);color:var(--paper);
    align-items:center;justify-content:center;
}
.nav-toggle:active{background:rgba(255,255,255,.12)}

/* ---------- reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- shared section head row (title + "view all" link) ---------- */
.head{display:flex;justify-content:space-between;align-items:flex-end;gap:2rem;margin-bottom:2.6rem;flex-wrap:wrap}
.head .htext{display:flex;flex-direction:column;gap:1rem;max-width:60ch}

/* ---------- cta band (used on home + offerings) ---------- */
.cta-band{background:linear-gradient(120deg,rgba(143,111,214,.16),rgba(43,159,224,.10));border:1px solid var(--line);
    border-radius:28px;padding:clamp(2.4rem,5vw,4rem);display:flex;justify-content:space-between;align-items:center;gap:2rem;flex-wrap:wrap}
.cta-band h2{font-family:var(--font-display);font-weight:700;font-size:clamp(1.8rem,4vw,2.8rem);line-height:1.05;letter-spacing:-.02em}
.cta-band p{color:var(--muted);margin-top:.6rem;max-width:44ch}
@media (max-width:760px){.cta-band{flex-direction:column;align-items:flex-start;text-align:left}.head{margin-bottom:1.8rem}}

/* ============================================================
   PRODUCTS grid (used on home + offerings)
   ============================================================ */
.prod-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1.3rem}
.prod{
    display:flex;flex-direction:column;border:1px solid var(--line);border-radius:22px;overflow:hidden;
    background:var(--card);transition:transform .4s cubic-bezier(.2,.7,.2,1),border-color .4s,box-shadow .4s;
}
.prod:hover{transform:translateY(-6px);border-color:var(--brand);box-shadow:0 26px 55px rgba(0,0,0,.4)}
.prod .well{
    aspect-ratio:5/4;display:flex;align-items:center;justify-content:center;padding:1.4rem;
    background:radial-gradient(circle at 50% 38%,#f6f8fc 0%,#dbe4ef 100%);position:relative;
}
.prod .well img{max-width:100%;max-height:100%;object-fit:contain;filter:drop-shadow(0 14px 24px rgba(20,40,70,.28))}
.prod .well svg{width:88%;height:auto;filter:drop-shadow(0 14px 24px rgba(20,40,70,.28))}
.prod .body{padding:1.1rem 1.25rem 1.35rem;display:flex;flex-direction:column;gap:.5rem;flex:1}
.prod .cat{font-family:var(--font-mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--brand)}
.prod h3{font-family:var(--font-display);font-weight:600;font-size:1.08rem;letter-spacing:-.01em}
.prod .spec{font-family:var(--font-mono);font-size:.66rem;color:var(--muted);line-height:1.55;margin-top:auto}

/* ---------- "why / values" cards — used on home + about ---------- */
.why-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1.3rem}
.why{border:1px solid var(--line);border-radius:18px;padding:1.8rem 1.7rem;background:var(--card);
    display:flex;flex-direction:column;gap:.9rem;position:relative;overflow:hidden;
    transition:transform .35s cubic-bezier(.2,.7,.2,1),border-color .35s,box-shadow .35s}
.why::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--brand);
    transform:scaleX(0);transform-origin:left;transition:transform .4s cubic-bezier(.2,.7,.2,1)}
.why:hover{transform:translateY(-5px);border-color:var(--line);box-shadow:0 22px 44px rgba(18,35,59,.08)}
.why:hover::before{transform:scaleX(1)}
.why .ico{width:46px;height:46px;border-radius:12px;background:rgba(31,127,192,.09);
    color:var(--brand);display:flex;align-items:center;justify-content:center}
.why h3{font-family:var(--font-display);font-weight:600;font-size:1.08rem;letter-spacing:-.01em}
.why p{color:var(--muted);font-size:.9rem;line-height:1.6}

/* ---------- contact section + form — used on home + contact ---------- */
.contact-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:2.6rem;align-items:start}
.contact-info{display:flex;flex-direction:column;gap:1.6rem}
.contact-info .lead{margin-top:.2rem}
.contact-lines{display:flex;flex-direction:column;gap:1.1rem;margin-top:.4rem}
.contact-line{display:flex;align-items:flex-start;gap:.9rem;text-decoration:none;color:var(--paper)}
.contact-line .ico{width:42px;height:42px;flex:0 0 auto;border-radius:11px;background:rgba(31,127,192,.09);
    color:var(--brand);display:flex;align-items:center;justify-content:center}
.contact-line .lbl{font-family:var(--font-mono);font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.contact-line .val{font-size:.95rem;line-height:1.45;font-weight:500;margin-top:.15rem}
a.contact-line:hover .val{color:var(--brand)}

.contact-form{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:2rem;
    display:flex;flex-direction:column;gap:1.1rem;box-shadow:0 22px 55px rgba(18,35,59,.06)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem}
.field{display:flex;flex-direction:column;gap:.4rem}
.field label{font-family:var(--font-mono);font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.field label .req{color:var(--brand)}
.field input,.field select,.field textarea{font-family:var(--font-body);font-size:.95rem;color:var(--paper);
    background:var(--ink);border:1px solid var(--line);border-radius:12px;padding:.75rem .9rem;width:100%;
    transition:border-color .25s,box-shadow .25s;-webkit-appearance:none;appearance:none}
.field textarea{resize:vertical;min-height:120px;line-height:1.55}
.field select{background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%231f7fc0' stroke-width='2.2'><path d='M6 9l6 6 6-6'/></svg>");
    background-repeat:no-repeat;background-position:right .9rem center;padding-right:2.4rem;cursor:pointer}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,127,192,.14)}
.field input::placeholder,.field textarea::placeholder{color:var(--faint)}
.form-foot{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-top:.2rem}
.form-note{font-family:var(--font-mono);font-size:.66rem;color:var(--muted);line-height:1.5}
.form-status{font-family:var(--font-mono);font-size:.72rem;color:var(--brand);display:none}
.form-status.show{display:block}
.contact-form button[type=submit]{border:none;cursor:pointer}
@media (max-width:860px){
    .contact-grid{grid-template-columns:1fr;gap:1.8rem}
    .contact-form{padding:1.5rem}
}
@media (max-width:520px){.form-row{grid-template-columns:1fr}}

/* ---------- device (centrifuge) showcase — used on home + offerings ---------- */
.device-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.3rem}
.device{display:grid;grid-template-columns:1.1fr 1fr;align-items:stretch;border:1px solid var(--line);
    border-radius:22px;overflow:hidden;background:var(--card);transition:transform .4s cubic-bezier(.2,.7,.2,1),border-color .4s,box-shadow .4s}
.device:hover{transform:translateY(-6px);border-color:var(--brand);box-shadow:0 26px 55px rgba(0,0,0,.12)}
.device-well{background:radial-gradient(circle at 50% 38%,#f6f8fc 0%,#dbe4ef 100%);display:flex;align-items:center;justify-content:center;padding:1.4rem;min-height:220px}
.device-well img{max-width:100%;max-height:260px;object-fit:contain;filter:drop-shadow(0 14px 24px rgba(20,40,70,.28))}
.device-body{padding:1.6rem 1.8rem;display:flex;flex-direction:column;gap:.6rem;justify-content:center}
.device-body .cat{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--brand)}
.device-body h3{font-family:var(--font-display);font-weight:600;font-size:1.4rem;letter-spacing:-.01em}
.device-body .spec{font-family:var(--font-mono);font-size:.72rem;color:var(--muted);line-height:1.6}
@media (max-width:760px){.device{grid-template-columns:1fr}.device-body{text-align:center;align-items:center}}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{background:var(--brand);border-top:1px solid transparent;padding:3.6rem 0 1.8rem;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1.4fr;gap:2.4rem}
.foot-brand .brand{margin-bottom:1rem;color:#fff}
.foot-brand p{color:rgba(255,255,255,.82);font-size:.9rem;line-height:1.6;max-width:34ch}
.foot-col h4{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;
    color:rgba(255,255,255,.6);margin-bottom:1rem}
.foot-col a,.foot-col p{display:block;color:rgba(255,255,255,.88);text-decoration:none;font-size:.9rem;
    line-height:1.5;margin-bottom:.6rem;transition:color .25s}
.foot-col a:hover{color:#fff;text-decoration:underline}
.foot-bottom{border-top:1px solid rgba(255,255,255,.25);margin-top:2.6rem;padding-top:1.5rem;
    display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap;
    font-family:var(--font-mono);font-size:.7rem;letter-spacing:.05em;color:rgba(255,255,255,.75)}

/* ============================================================
   RESPONSIVE (shared chrome)
   ============================================================ */
.mainnav a.mobile-only{display:none}
@media (max-width:860px){
    .mainnav,.btn-contact{display:none}
    .nav-toggle{display:flex}
    .mainnav.open{
        display:flex;flex-direction:column;gap:.15rem;
        position:absolute;top:100%;left:0;right:0;
        background:rgba(255,255,255,.97);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
        border-top:1px solid var(--line);border-bottom:1px solid var(--line);
        box-shadow:0 12px 30px rgba(18,35,59,.1);
        padding:.8rem 5% 1.1rem;
    }
    .mainnav.open a{text-align:left;padding:.9rem 1rem;border-radius:12px;font-size:.8rem}
    .mainnav.open a.mobile-only{display:block;margin-top:.4rem;background:var(--brand);color:#fff;text-align:center;font-weight:600}
}
@media (max-width:760px){
    .foot-grid{grid-template-columns:1fr;gap:1.8rem}
    .foot-bottom{flex-direction:column;align-items:flex-start}
    .lead{font-size:1rem}
}

@media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto}
    *{animation-duration:.001ms!important;transition-duration:.001ms!important}
    .reveal{opacity:1;transform:none}
}

/* ============================================================
   AI CHAT WIDGET — floating launcher + panel (Gemini chatbot)
   ============================================================ */
.chat-launcher{position:fixed;right:1.6rem;bottom:1.6rem;z-index:400;width:58px;height:58px;border-radius:50%;
    background:var(--brand);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;
    box-shadow:0 14px 34px rgba(31,127,192,.4);transition:transform .3s,box-shadow .3s}
.chat-launcher:hover{transform:translateY(-3px) scale(1.04);box-shadow:0 18px 40px rgba(31,127,192,.5)}
.chat-launcher svg{transition:opacity .2s,transform .2s}
.chat-launcher .ic-close{position:absolute;opacity:0;transform:scale(.6) rotate(-45deg)}
.chat-launcher.open .ic-chat{opacity:0;transform:scale(.6) rotate(45deg)}
.chat-launcher.open .ic-close{opacity:1;transform:scale(1) rotate(0)}

.chat-panel{position:fixed;right:1.6rem;bottom:5.2rem;z-index:400;width:min(380px,88vw);
    background:var(--card);border:1px solid var(--line);border-radius:22px;overflow:hidden;
    box-shadow:0 30px 70px rgba(18,35,59,.25);
    opacity:0;transform:translateY(16px) scale(.97);pointer-events:none;transition:opacity .3s ease,transform .3s ease;
    display:flex;flex-direction:column}
.chat-panel.open{opacity:1;transform:none;pointer-events:auto}
.chat-panel .chat-head{display:flex;align-items:center;gap:.7rem;padding:.9rem 1.1rem;background:var(--brand);color:#fff}
.chat-panel .chat-head .dot{width:8px;height:8px;border-radius:50%;background:#7ee08a;box-shadow:0 0 0 3px rgba(126,224,138,.3)}
.chat-panel .chat-head .t{display:flex;flex-direction:column;line-height:1.25}
.chat-panel .chat-head .t b{font-family:var(--font-display);font-weight:600;font-size:.88rem}
.chat-panel .chat-head .t span{font-family:var(--font-mono);font-size:.62rem;letter-spacing:.06em;opacity:.85}
.chat-panel iframe{width:100%;height:440px;border:none;display:block;background:var(--ink)}
@media (max-width:520px){
    .chat-launcher{right:1.1rem;bottom:1.1rem}
    .chat-panel{right:1.1rem;left:1.1rem;width:auto;bottom:4.8rem}
    .chat-panel iframe{height:60vh}
}
@media (prefers-reduced-motion:reduce){.chat-launcher:hover{transform:none}}