:root{
  --bg:#0a0f1a;
  --bg-alt:#0e1526;
  --surface:#131c30;
  --surface-2:#182238;
  --line:rgba(231,236,243,0.09);
  --line-strong:rgba(231,236,243,0.16);
  --text:#e7ecf3;
  --text-muted:#8d9bb0;
  --teal:#2fd8c4;
  --teal-dim:rgba(47,216,196,0.12);
  --amber:#f2a93b;
  --amber-dim:rgba(242,169,59,0.14);
  --whatsapp:#25d366;
  --radius:14px;
  --header-bg:rgba(10,15,26,0.86);
  --overlay-bg:rgba(6,9,16,0.72);
  --shadow-soft:rgba(0,0,0,0.35);
}
html[data-theme="light"]{
  --bg:#f6f7fa;
  --bg-alt:#eef1f6;
  --surface:#ffffff;
  --surface-2:#f0f2f6;
  --line:rgba(15,23,42,0.09);
  --line-strong:rgba(15,23,42,0.14);
  --text:#0f172a;
  --text-muted:#5b6472;
  --teal:#0f9c8c;
  --teal-dim:rgba(15,156,140,0.1);
  --amber:#b9740c;
  --amber-dim:rgba(185,116,12,0.12);
  --header-bg:rgba(246,247,250,0.86);
  --overlay-bg:rgba(15,23,42,0.45);
  --shadow-soft:rgba(15,23,42,0.12);
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
html, body{ transition:background-color .25s ease, color .25s ease; }
body{
  background:var(--bg);
  color:var(--text);
  font-family:'Rabar 022','NRT Reg','Noto Sans Arabic','Inter',sans-serif;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.lang-en{ font-family:'Inter','Noto Sans Arabic',sans-serif; }
.mono{ font-family:'JetBrains Mono',monospace; }
.disp{ font-family:'Space Grotesk','Rabar 022','NRT Reg','Noto Sans Arabic',sans-serif; }
body.lang-ku .disp{ font-family:'Rabar 022','NRT Reg','Noto Sans Arabic',sans-serif; }
a{color:inherit; text-decoration:none;}
ul{list-style:none;}
img,svg{display:block; max-width:100%;}
.wrap{ max-width:1180px; margin:0 auto; padding:0 28px; }
section{ position:relative; }
button{ font-family:inherit; }

/* ---------- NAV ---------- */
header{
  position:sticky; top:0; z-index:50;
  background:var(--header-bg);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
nav{ display:flex; align-items:center; justify-content:space-between; padding:16px 0; }
.brand{ display:flex; align-items:center; gap:10px; font-weight:700; letter-spacing:0.02em; font-size:1.05rem; }
.brand img, .brand svg{ height:38px; width:auto; }
.navlinks{ display:flex; align-items:center; gap:34px; }
.navlinks a{ font-size:.95rem; color:var(--text-muted); transition:color .2s; }
.navlinks a:hover, .navlinks a.active{ color:var(--teal); }
.nav-actions{ display:flex; align-items:center; gap:14px; }
.lang-btn{
  border:1px solid var(--line-strong); background:transparent; color:var(--text);
  padding:8px 16px; border-radius:999px; font-size:.85rem; cursor:pointer;
}
.lang-btn:hover{ border-color:var(--teal); color:var(--teal); }
.theme-btn{
  display:flex; align-items:center; justify-content:center;
  width:36px; height:36px; border-radius:50%;
  border:1px solid var(--line-strong); background:transparent; color:var(--text);
  cursor:pointer; flex-shrink:0;
}
.theme-btn:hover{ border-color:var(--teal); color:var(--teal); }
.theme-btn svg{ width:17px; height:17px; }
.theme-btn .icon-moon{ display:none; }
html[data-theme="light"] .theme-btn .icon-sun{ display:none; }
html[data-theme="light"] .theme-btn .icon-moon{ display:block; }
.cta{
  background:var(--teal); color:#04231e; padding:10px 20px; border-radius:999px;
  font-size:.9rem; font-weight:600; white-space:nowrap;
}
@media (max-width:860px){ .navlinks{display:none;} }

.nav-toggle{
  display:none; align-items:center; justify-content:center;
  width:36px; height:36px; border-radius:50%;
  border:1px solid var(--line-strong); background:transparent; color:var(--text);
  cursor:pointer; flex-shrink:0; order:5;
}
.nav-toggle:hover{ border-color:var(--teal); color:var(--teal); }
.nav-toggle svg{ width:18px; height:18px; }
.nav-toggle .icon-close{ display:none; }
nav.nav-open .nav-toggle .icon-burger{ display:none; }
nav.nav-open .nav-toggle .icon-close{ display:block; }
@media (max-width:860px){
  .nav-toggle{ display:flex; }
  .navlinks-mobile{
    display:none; position:absolute; top:100%; inset-inline:0;
    background:var(--header-bg); backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line); flex-direction:column;
    padding:8px 28px 18px;
  }
  nav.nav-open{ position:relative; }
  nav.nav-open .navlinks-mobile{ display:flex; }
  .navlinks-mobile a{
    padding:13px 0; font-size:1rem; color:var(--text-muted);
    border-bottom:1px solid var(--line);
  }
  .navlinks-mobile a:last-child{ border-bottom:none; }
  .navlinks-mobile a:hover, .navlinks-mobile a.active{ color:var(--teal); }
}

/* ---------- WHATSAPP ---------- */
.wa-link{
  display:inline-flex; align-items:center; gap:8px;
  background:var(--whatsapp); color:#04231e; padding:10px 18px; border-radius:999px;
  font-size:.88rem; font-weight:600; white-space:nowrap;
}
.wa-link svg{ flex-shrink:0; fill:#04231e; }
.wa-float{
  position:fixed; inset-inline-end:22px; bottom:22px; z-index:60;
  width:56px; height:56px; border-radius:50%; background:var(--whatsapp);
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 8px 24px var(--shadow-soft);
  transition:transform .2s;
}
.wa-float:hover{ transform:scale(1.07); }
.wa-float svg{ fill:#04231e; width:28px; height:28px; }
.foot-item.wa-item svg{ stroke:none; fill:var(--whatsapp); }

/* ---------- HERO ---------- */
.hero{ padding:88px 0 64px; border-bottom:1px solid var(--line); }
.hero-grid{ display:grid; grid-template-columns:1.1fr .9fr; gap:56px; align-items:center; }
@media (max-width:900px){ .hero-grid{ grid-template-columns:1fr; } }
.eyebrow{
  display:inline-flex; align-items:center; gap:10px; color:var(--teal);
  font-size:.8rem; letter-spacing:.14em; text-transform:uppercase;
  border:1px solid var(--teal-dim); background:var(--teal-dim);
  padding:6px 14px; border-radius:999px; margin-bottom:22px;
}
.eyebrow::before{ content:""; width:6px; height:6px; border-radius:50%; background:var(--teal); }
h1{ font-size:2.7rem; line-height:1.25; font-weight:700; margin-bottom:22px; }
body.lang-ku h1, body.lang-ku h2{ font-weight:800; }
.hero p.lead{ color:var(--text-muted); font-size:1.08rem; max-width:46ch; margin-bottom:34px; }
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; }
.btn-primary{ background:var(--teal); color:#04231e; padding:14px 26px; border-radius:10px; font-weight:600; display:inline-block; }
.btn-ghost{ border:1px solid var(--line-strong); padding:14px 26px; border-radius:10px; color:var(--text); display:inline-block; }
.btn-ghost:hover{ border-color:var(--text-muted); }

/* signature: reference-range card */
.range-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius);
  padding:26px 26px 22px;
}
.range-card .rc-top{ display:flex; justify-content:space-between; align-items:baseline; margin-bottom:6px; }
.range-card .rc-title{ font-size:.8rem; color:var(--text-muted); letter-spacing:.05em; }
.range-card .rc-code{ color:var(--amber); font-size:.78rem; }
.range-card .rc-name{ font-size:1.15rem; font-weight:600; margin-bottom:18px; }
.range-track{ position:relative; height:8px; border-radius:999px;
  background:linear-gradient(90deg, var(--amber) 0%, var(--amber) 16%, var(--teal) 16%, var(--teal) 84%, var(--amber) 84%, var(--amber) 100%);
  opacity:.55; margin-bottom:10px;
}
.range-dot{
  position:absolute; top:50%; transform:translate(-50%,-50%);
  width:16px; height:16px; border-radius:50%; background:var(--teal);
  box-shadow:0 0 0 5px rgba(47,216,196,0.18);
  animation:pulse 3.2s ease-in-out infinite;
}
@keyframes pulse{ 0%,100%{ box-shadow:0 0 0 5px rgba(47,216,196,0.18);} 50%{ box-shadow:0 0 0 9px rgba(47,216,196,0.1);} }
.range-labels{ display:flex; justify-content:space-between; font-size:.72rem; color:var(--text-muted); }
.range-labels span.mono{ color:var(--text); }
.rc-foot{ display:flex; justify-content:space-between; margin-top:22px; padding-top:18px; border-top:1px solid var(--line); }
.rc-stat{ text-align:start; }
.rc-stat .num{ font-size:1.3rem; font-weight:700; color:var(--teal); }
.rc-stat .lbl{ font-size:.72rem; color:var(--text-muted); margin-top:2px; }

/* ---------- STRIP ---------- */
.strip{ border-bottom:1px solid var(--line); }
.strip .wrap{ display:flex; padding:26px 28px; gap:0; }
.strip-item{ flex:1; text-align:center; border-inline-start:1px solid var(--line); padding:0 12px; }
.strip-item:first-child{ border-inline-start:none; }
.strip-item .num{ font-size:1.5rem; font-weight:700; color:var(--text); }
.strip-item .lbl{ font-size:.78rem; color:var(--text-muted); margin-top:4px; }

/* ---------- SECTION HEAD ---------- */
.sec{ padding:80px 0; }
.sec-head{ max-width:640px; margin-bottom:44px; }
.sec-head .eyebrow{ margin-bottom:16px; }
.sec-head h2{ font-size:2rem; font-weight:700; margin-bottom:14px; }
.sec-head p{ color:var(--text-muted); font-size:1.02rem; }

/* ---------- ABOUT ---------- */
.about-grid{ display:grid; grid-template-columns:.9fr 1.1fr; gap:60px; align-items:center; }
@media (max-width:900px){ .about-grid{ grid-template-columns:1fr; } }

/* team photo, replaces the old decorative rings */
.about-photo{
  position:relative; width:100%; max-width:340px; margin-inline:auto;
  aspect-ratio:4/5; border-radius:20px; overflow:hidden;
  border:1px solid var(--line-strong);
  background:var(--surface);
  box-shadow:0 20px 50px rgba(0,0,0,0.35);
}
.about-photo::after{
  content:""; position:absolute; inset:0; border-radius:20px;
  box-shadow:inset 0 0 0 1px rgba(47,216,196,0.25);
  pointer-events:none;
}
.about-photo::before{
  content:""; position:absolute; inset:-2px; z-index:-1; border-radius:22px;
  background:linear-gradient(160deg, var(--teal) 0%, transparent 40%, transparent 60%, var(--amber) 100%);
  opacity:.35;
}
.about-photo img{
  width:100%; height:100%; object-fit:cover; display:block;
}
.about-list{ margin-top:26px; }
.about-list li{ display:flex; gap:14px; padding:16px 0; border-top:1px solid var(--line); }
.about-list li:first-child{ border-top:none; }
.about-list .idx{ font-family:'JetBrains Mono',monospace; color:var(--amber); font-size:.85rem; padding-top:2px; }
.about-list .txt strong{ display:block; margin-bottom:3px; }
.about-list .txt span{ color:var(--text-muted); font-size:.92rem; }

/* ---------- TESTS: tabs + grid ---------- */
.tabs{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:28px; }
.tab{
  border:1px solid var(--line-strong); background:var(--surface); color:var(--text-muted);
  padding:10px 18px; border-radius:999px; font-size:.88rem; cursor:pointer;
  transition:all .2s;
}
.tab.active{ background:var(--teal); border-color:var(--teal); color:#04231e; font-weight:600; }
.test-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(290px,1fr)); gap:18px; }
.test-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius);
  padding:22px; transition:border-color .2s, transform .2s; cursor:pointer;
}
.test-card:hover{ border-color:var(--teal-dim); transform:translateY(-2px); }
.tc-top{ display:flex; justify-content:space-between; align-items:flex-start; margin-bottom:14px; gap:10px; }
.tc-code{
  font-family:'JetBrains Mono',monospace; font-size:.72rem; letter-spacing:.05em;
  color:var(--amber); background:var(--amber-dim); padding:4px 9px; border-radius:6px; white-space:nowrap;
}
.tc-name{ font-size:1.02rem; font-weight:600; margin-bottom:14px; }
.tc-meta{ display:flex; flex-direction:column; gap:8px; font-size:.85rem; color:var(--text-muted); }
.tc-meta div{ display:flex; justify-content:space-between; border-top:1px solid var(--line); padding-top:8px; }
.tc-meta div:first-child{ border-top:none; padding-top:0; }
.tc-meta b{ color:var(--text); font-weight:500; }
.tc-more{ margin-top:14px; font-size:.82rem; color:var(--teal); display:flex; align-items:center; gap:6px; }

/* ---------- search page header ---------- */
.search-bar{
  display:flex; align-items:center; gap:12px;
  background:var(--surface); border:1px solid var(--line-strong); border-radius:12px;
  padding:14px 18px; margin-bottom:26px;
}
.search-bar svg{ stroke:var(--text-muted); flex-shrink:0; }
.search-bar input{
  flex:1; background:transparent; border:none; outline:none; color:var(--text); font-size:1rem;
  font-family:inherit;
}
.search-bar input::placeholder{ color:var(--text-muted); }
.no-results{ color:var(--text-muted); padding:40px 0; text-align:center; }

/* ---------- modal ---------- */
.modal-overlay{
  position:fixed; inset:0; background:var(--overlay-bg); backdrop-filter:blur(4px);
  display:none; align-items:flex-start; justify-content:center; z-index:100; padding:60px 20px;
  overflow-y:auto;
}
.modal-overlay.open{ display:flex; }
.modal{
  background:var(--bg-alt); border:1px solid var(--line-strong); border-radius:var(--radius);
  max-width:600px; width:100%; padding:32px; position:relative; animation:modalIn .18s ease;
}
@keyframes modalIn{ from{ opacity:0; transform:translateY(8px); } to{ opacity:1; transform:translateY(0); } }
.modal-close{
  position:absolute; inset-inline-end:20px; top:20px; background:transparent; border:none;
  color:var(--text-muted); cursor:pointer; font-size:1.4rem; line-height:1;
}
.modal-close:hover{ color:var(--text); }
.modal-code{ color:var(--amber); font-family:'JetBrains Mono',monospace; font-size:.8rem; margin-bottom:8px; }
.modal h3{ font-size:1.4rem; font-weight:700; margin-bottom:20px; }
.modal-section{ margin-bottom:20px; }
.modal-section .lbl{ font-size:.75rem; letter-spacing:.06em; text-transform:uppercase; color:var(--text-muted); margin-bottom:8px; }
.modal-section p{ color:var(--text); font-size:.95rem; }
.modal-metarow{ display:flex; gap:22px; flex-wrap:wrap; margin-bottom:20px; }
.modal-metaitem .num{ font-weight:700; color:var(--teal); }
.modal-metaitem .k{ font-size:.75rem; color:var(--text-muted); }
.qual-pill{ display:inline-block; padding:6px 14px; border-radius:999px; font-size:.85rem; font-family:'JetBrains Mono',monospace; }
.qual-pill.negative{ background:var(--teal-dim); color:var(--teal); }

/* panel component chips */
.comp-chips{ display:flex; flex-wrap:wrap; gap:8px; }
.comp-chip{
  display:inline-block; padding:7px 13px; border-radius:9px;
  background:var(--surface-2); border:1px solid var(--line);
  font-size:.83rem; color:var(--text-muted);
}
.comp-chip.clickable{ cursor:pointer; color:var(--teal); border-color:var(--teal-dim); }
.comp-chip.clickable:hover{ background:var(--teal-dim); border-color:var(--teal); }

/* ---------- CONTACT / FOOTER ---------- */
footer{ border-top:1px solid var(--line); background:var(--bg-alt); padding-top:70px; }
.foot-grid{ display:grid; grid-template-columns:1.2fr .8fr .8fr; gap:50px; padding-bottom:50px; }
@media (max-width:800px){ .foot-grid{ grid-template-columns:1fr; } }
.foot-grid h4{ font-size:.95rem; margin-bottom:18px; color:var(--text); }
.foot-grid p{ color:var(--text-muted); font-size:.92rem; max-width:36ch; }
.foot-item{ display:flex; gap:12px; align-items:flex-start; margin-bottom:14px; font-size:.9rem; color:var(--text-muted); }
.foot-item svg{ flex-shrink:0; margin-top:3px; stroke:var(--teal); }
.foot-bottom{ border-top:1px solid var(--line); padding:22px 0; display:flex; justify-content:space-between; color:var(--text-muted); font-size:.82rem; flex-wrap:wrap; gap:10px; }

[data-i18n]{ transition:opacity .15s; }

/* ---------- FAQ ---------- */
.faq-list{ display:flex; flex-direction:column; gap:12px; max-width:820px; }
.faq-item{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius);
  padding:0; overflow:hidden;
}
.faq-item summary{
  cursor:pointer; list-style:none; padding:20px 24px; font-weight:600; font-size:1rem;
  display:flex; align-items:center; justify-content:space-between; gap:16px;
}
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item summary::after{
  content:"+"; color:var(--teal); font-size:1.3rem; font-weight:400; flex-shrink:0; transition:transform .2s;
}
.faq-item[open] summary::after{ content:"–"; }
.faq-item[open] summary{ border-bottom:1px solid var(--line); }
.faq-item p{ padding:18px 24px 22px; color:var(--text-muted); font-size:.94rem; line-height:1.8; }

.faq-item.faq-extra{ display:none; }
.faq-list.expanded .faq-item.faq-extra{ display:block; }

.faq-pagination{
  display:flex; align-items:center; justify-content:center; gap:18px;
  margin-top:26px; max-width:820px;
}
.faq-page-btn{
  border:1px solid var(--line-strong); background:var(--surface); color:var(--text);
  padding:10px 20px; border-radius:999px; font-size:.88rem; cursor:pointer; transition:all .2s;
}
.faq-page-btn:hover:not(:disabled){ border-color:var(--teal); color:var(--teal); }
.faq-page-btn:disabled{ opacity:.35; cursor:not-allowed; }
.faq-page-status{ font-size:.85rem; color:var(--text-muted); }

/* ---------- 404 ---------- */
.error-page{ padding:110px 0 100px; text-align:center; }
.error-code{
  font-family:'Space Grotesk','JetBrains Mono',monospace; font-weight:700;
  font-size:6.5rem; line-height:1; letter-spacing:.02em;
  background:linear-gradient(135deg, var(--teal), var(--amber));
  -webkit-background-clip:text; background-clip:text; color:transparent;
  margin-bottom:18px;
}
.error-page h1{ font-size:1.7rem; margin-bottom:14px; }
.error-page p{ color:var(--text-muted); max-width:48ch; margin:0 auto 34px; }
.error-actions{ display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }

/* ---------- TUBES ---------- */
.tube-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:18px; }
.tube-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius);
  padding:22px; display:flex; flex-direction:column; gap:14px;
}
.tube-top{ display:flex; align-items:center; gap:14px; }
.tube-cap{
  width:20px; height:44px; border-radius:5px 5px 3px 3px; flex-shrink:0;
  border:1px solid var(--line-strong); box-shadow:inset 0 -18px 0 rgba(255,255,255,0.12);
}
.tube-name{ font-size:1.02rem; font-weight:600; }
.tube-additive{ font-size:.8rem; color:var(--teal); font-family:'JetBrains Mono',monospace; }
.tube-row{ display:flex; flex-direction:column; gap:4px; }
.tube-row .lbl{ font-size:.72rem; letter-spacing:.05em; text-transform:uppercase; color:var(--text-muted); }
.tube-row .val{ font-size:.9rem; color:var(--text); line-height:1.7; }
.tube-storage{
  margin-top:auto; padding-top:12px; border-top:1px solid var(--line);
  display:flex; justify-content:space-between; align-items:center; font-size:.82rem;
}
.tube-storage .k{ color:var(--text-muted); }
.tube-storage .v{ color:var(--amber); font-family:'JetBrains Mono',monospace; }

.tube-toggle-btn{
  display:inline-flex; align-items:center; gap:10px;
  border:1px solid var(--line-strong); background:var(--surface); color:var(--text);
  padding:12px 22px; border-radius:999px; font-size:.92rem; font-weight:600; cursor:pointer; transition:all .2s;
}
.tube-toggle-btn:hover{ border-color:var(--teal); color:var(--teal); }
.tube-toggle-icon{ transition:transform .2s; }
.tube-toggle-btn.open .tube-toggle-icon{ transform:rotate(180deg); }
.tube-panel{ margin-top:26px; }
.tube-panel[hidden]{ display:none; }
.tube-note{
  margin-top:20px; padding:14px 18px; border-radius:var(--radius);
  background:var(--bg-alt); border:1px solid var(--line);
  color:var(--text-muted); font-size:.86rem; line-height:1.8;
}

/* ---------- BLOG ---------- */
.blog-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:20px; }
.blog-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius);
  padding:0; overflow:hidden; display:flex; flex-direction:column;
}
.blog-card summary{
  cursor:pointer; list-style:none; padding:22px 24px; display:flex; align-items:flex-start; justify-content:space-between; gap:14px;
}
.blog-card summary::-webkit-details-marker{ display:none; }
.blog-tag{ font-size:.72rem; letter-spacing:.05em; text-transform:uppercase; color:var(--teal); font-family:'JetBrains Mono',monospace; margin-bottom:8px; display:block; }
.blog-title{ font-size:1.08rem; font-weight:700; line-height:1.5; }
.blog-card summary::after{ content:"+"; color:var(--teal); font-size:1.3rem; font-weight:400; flex-shrink:0; }
.blog-card[open] summary::after{ content:"–"; }
.blog-card[open] summary{ border-bottom:1px solid var(--line); }
.blog-body{ padding:6px 24px 24px; color:var(--text-muted); font-size:.94rem; line-height:1.9; }
.blog-body p{ margin-bottom:14px; }
.blog-body ul{ margin:0 0 14px; padding-inline-start:22px; display:flex; flex-direction:column; gap:8px; }
.blog-body table{ width:100%; border-collapse:collapse; margin:10px 0 16px; font-size:.88rem; }
.blog-body th, .blog-body td{ border:1px solid var(--line); padding:8px 12px; text-align:start; }
.blog-body th{ background:var(--bg-alt); color:var(--text); }
.blog-tip{
  margin-top:10px; padding:12px 16px; border-radius:10px;
  background:var(--bg-alt); border:1px solid var(--line); color:var(--text); font-size:.88rem; line-height:1.8;
}

/* ---------- Microscopy sample gallery (GUE / GSE / SFA) ---------- */
.micro-grid{
  display:grid; grid-template-columns:repeat(auto-fill, minmax(210px, 1fr)); gap:16px;
  margin:14px 0 18px;
}
.micro-item{
  background:var(--bg-alt); border:1px solid var(--line); border-radius:10px; overflow:hidden;
  text-align:center; padding-bottom:12px;
}
.micro-item a{ display:block; position:relative; }
.micro-item img{ width:100%; aspect-ratio:1/1; object-fit:cover; display:block; cursor:zoom-in; transition:transform .2s ease; }
.micro-item a:hover img{ transform:scale(1.03); }
.micro-item.wide{ grid-column:1/-1; max-width:520px; }
.micro-item.wide img{ aspect-ratio:5/3; object-fit:contain; background:var(--surface); cursor:zoom-in; }
.micro-item .micro-cap{ font-size:.84rem; color:var(--text); margin-top:10px; padding:0 10px; line-height:1.6; }
.micro-item .micro-cap b{ display:block; font-size:.9rem; color:var(--teal); margin-bottom:3px; }
.micro-note{ font-size:.78rem; color:var(--text-muted); margin-top:-6px; margin-bottom:14px; }
.micro-cta{
  display:inline-flex; align-items:center; gap:6px; margin-top:4px; padding:10px 18px;
  background:var(--teal); color:#06231f; font-weight:700; border-radius:999px; font-size:.88rem;
}
html[data-theme="light"] .micro-cta{ color:#fff; }

/* Dedicated microscopy.html page */
.micro-jumpnav{ display:flex; flex-wrap:wrap; gap:10px; margin:18px 0 0; }
.micro-jumpnav a{
  padding:8px 16px; border:1px solid var(--line); border-radius:999px; font-size:.85rem;
  background:var(--surface); color:var(--text);
}
.micro-jumpnav a:hover{ border-color:var(--teal); color:var(--teal); }
.micro-section{ padding:48px 0; border-top:1px solid var(--line); }
.micro-section:first-of-type{ border-top:none; }
.micro-section-head{ max-width:760px; margin-bottom:22px; }
.micro-section-head .eyebrow{ color:var(--teal); font-family:'JetBrains Mono',monospace; font-size:.78rem; letter-spacing:.05em; text-transform:uppercase; margin-bottom:8px; }
.micro-section-head h2{ font-family:'Space Grotesk','Rabar 022','NRT Reg','Noto Sans Arabic',sans-serif; font-size:1.7rem; margin-bottom:10px; }
.micro-subhead{ font-size:1.05rem; font-weight:700; margin:22px 0 10px; color:var(--text); }
.micro-prep-box{
  background:var(--bg-alt); border:1px solid var(--line); border-radius:12px; padding:16px 20px; margin:14px 0 20px;
}
.micro-prep-box ul{ padding-inline-start:20px; display:flex; flex-direction:column; gap:6px; margin-top:6px; }

.qa-list{ display:flex; flex-direction:column; gap:12px; max-width:900px; }
.qa-item{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); overflow:hidden;
}
.qa-item summary{
  cursor:pointer; list-style:none; padding:18px 22px; display:flex; align-items:center; gap:14px; font-size:.95rem;
}
.qa-item summary::-webkit-details-marker{ display:none; }
.qa-num{
  flex-shrink:0; width:30px; height:30px; border-radius:50%; background:var(--bg-alt);
  color:var(--teal); font-family:'JetBrains Mono',monospace; font-weight:600; font-size:.82rem;
  display:flex; align-items:center; justify-content:center;
}
.qa-q{ flex:1; font-style:italic; color:var(--text); }
.qa-item summary::after{ content:"+"; color:var(--teal); font-size:1.2rem; flex-shrink:0; }
.qa-item[open] summary::after{ content:"–"; }
.qa-item[open] summary{ border-bottom:1px solid var(--line); }
.qa-a{ padding:16px 22px 20px 66px; color:var(--text-muted); font-size:.9rem; line-height:1.8; }
.qa-a b{ color:var(--amber); }

.qa-item.qa-extra{ display:none; }
.qa-list.expanded .qa-item.qa-extra{ display:block; }

.reveal-more-wrap{ display:flex; justify-content:center; margin-top:22px; }


/* ---- tubes page additions ---- */
.back-link{ display:inline-flex; align-items:center; gap:7px; color:var(--text-muted); font-size:.9rem; padding:8px 14px; border:1px solid var(--line-strong); border-radius:999px; transition:all .2s; }
.back-link:hover{ color:var(--teal); border-color:var(--teal); }
.tube-card-click{ cursor:pointer; transition:border-color .2s, transform .2s; }
.tube-card-click:hover{ border-color:var(--teal-dim); transform:translateY(-2px); }
.tube-card .tc-more{ margin-top:12px; font-size:.82rem; color:var(--teal); }
.tube-modal-top{ display:flex; align-items:center; gap:14px; margin-bottom:20px; }
.tube-cap-lg{ width:28px; height:44px; border-radius:6px 6px 3px 3px; flex-shrink:0; box-shadow:inset 0 -6px 0 rgba(0,0,0,0.15); }
/* home tubes CTA link */
.tube-cta-link{ display:inline-flex; align-items:center; gap:10px; background:var(--teal); color:#04231e; padding:14px 26px; border-radius:10px; font-weight:600; }
.tube-cta-link:hover{ filter:brightness(1.05); }
/* home sample-collection section */
.home-col{ display:grid; grid-template-columns:1fr 1fr; gap:44px; align-items:center; }
@media (max-width:820px){ .home-col{ grid-template-columns:1fr; } }
.home-col-card{ background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:30px; }
.home-col-card .hc-icon{ width:52px; height:52px; border-radius:12px; background:var(--teal-dim); display:flex; align-items:center; justify-content:center; margin-bottom:18px; }
.home-col-card .hc-icon svg{ stroke:var(--teal); }

/* ---- legal / privacy page ---- */
.legal-body{ margin-top:10px; }
.legal-body h3{ font-size:1.08rem; color:var(--text); margin:26px 0 8px; }
.legal-body p{ color:var(--text-muted); font-size:.98rem; line-height:1.9; }

/* ---- Arabic language ---- */
body.lang-ar{ font-family:'Noto Sans Arabic','Inter',sans-serif; }
body.lang-ar .disp{ font-family:'Noto Sans Arabic',sans-serif; font-weight:700; }
body.lang-ar h1, body.lang-ar h2{ font-weight:700; }