/* =========================================================
   BIOLAB — Μικροβιολογικό & Μοριακό Εργαστήριο
   Στυλ: minimal / σύγχρονο — μπλε σκούρο, λευκό, μαύρο
   ========================================================= */

:root {
  /* Παλέτα */
  --navy-950: #05101f;
  --navy-900: #071a30;
  --navy-800: #0a2342;
  --navy-700: #0e2f56;
  --navy-600: #14406f;
  --blue: #2f7fbf;
  --blue-soft: #eef4fa;

  --black: #0b0d10;
  --ink: #101720;
  --muted: #5d6b7b;
  --muted-soft: #8b98a6;
  --line: #e3e8ee;
  --line-soft: #eef1f5;
  --white: #ffffff;
  --off: #f6f8fa;

  --container: min(1240px, calc(100% - 48px));
  --radius: 4px;
  --ease: cubic-bezier(.22, .8, .3, 1);
  --header-h: 84px;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 20px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: "Inter", "Helvetica Neue", Arial, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.7;
  font-weight: 400;
  letter-spacing: -0.006em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
::selection { background: var(--navy-800); color: #fff; }

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.035em;
  color: var(--navy-900);
}
p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

.container { width: var(--container); margin-inline: auto; }
.container-narrow { width: min(880px, calc(100% - 48px)); margin-inline: auto; }

/* Τυπογραφική κλίμακα */
.display  { font-size: clamp(2.6rem, 6.2vw, 4.7rem); }
.h1       { font-size: clamp(2.3rem, 5vw, 3.7rem); }
.h2       { font-size: clamp(1.95rem, 3.7vw, 2.95rem); }
.h3       { font-size: clamp(1.3rem, 2vw, 1.6rem); }
.lead     { font-size: clamp(1.02rem, 1.35vw, 1.2rem); color: var(--muted); line-height: 1.75; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  margin-bottom: 22px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.19em;
  text-transform: uppercase;
  color: var(--blue);
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  opacity: .55;
}
.eyebrow.center::before { display: none; }

.skip-link {
  position: fixed; top: -200px; left: 20px; z-index: 999;
  padding: 14px 22px; background: var(--navy-800); color: #fff;
  font-size: 14px; font-weight: 600;
}
.skip-link:focus-visible { top: 18px; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }

/* ── Κουμπιά ───────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 54px; padding: 0 28px;
  border: 1px solid var(--navy-800); border-radius: var(--radius);
  background: var(--navy-800); color: #fff;
  font-size: 14px; font-weight: 600; letter-spacing: .005em;
  cursor: pointer; text-align: center;
  transition: background .3s var(--ease), border-color .3s var(--ease), color .3s var(--ease), transform .3s var(--ease);
}
.btn:hover { background: var(--navy-600); border-color: var(--navy-600); transform: translateY(-2px); }
.btn .arw { transition: transform .3s var(--ease); }
.btn:hover .arw { transform: translateX(4px); }

.btn-ghost { background: transparent; color: var(--navy-800); border-color: var(--line); }
.btn-ghost:hover { background: var(--navy-800); color: #fff; border-color: var(--navy-800); }

.btn-light { background: #fff; color: var(--navy-900); border-color: #fff; }
.btn-light:hover { background: transparent; color: #fff; border-color: rgba(255,255,255,.55); }

.btn-outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.32); }
.btn-outline-light:hover { background: #fff; color: var(--navy-900); border-color: #fff; }

.btn-sm { min-height: 46px; padding: 0 20px; font-size: 13px; }

.textlink {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 14px; font-weight: 600; color: var(--navy-800);
  border-bottom: 1px solid rgba(14,47,86,.22); padding-bottom: 3px;
  transition: border-color .3s var(--ease), color .3s var(--ease);
}
.textlink::after { content: "→"; transition: transform .3s var(--ease); }
.textlink:hover { border-color: var(--navy-800); }
.textlink:hover::after { transform: translateX(5px); }
.textlink.light { color: #fff; border-color: rgba(255,255,255,.3); }
.textlink.light:hover { border-color: #fff; }

/* ── Topbar ───────────────────────────────────────────── */
.topbar {
  background: var(--navy-950);
  color: rgba(255,255,255,.72);
  font-size: 13px;
  letter-spacing: -0.002em;
}
.topbar-inner {
  min-height: 42px; display: flex; align-items: center;
  justify-content: space-between; gap: 24px;
}
.topbar-hours { display: flex; align-items: center; gap: 9px; }
.topbar-dot { width: 6px; height: 6px; border-radius: 50%; background: #35c07a; flex: 0 0 auto; }
.topbar-links { display: flex; align-items: center; gap: 26px; }
.topbar a { transition: color .25s var(--ease); }
.topbar a:hover { color: #fff; }

/* ── Header ───────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.88);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--line-soft);
  transition: box-shadow .3s var(--ease);
}
.site-header.is-scrolled { box-shadow: 0 1px 30px rgba(7,26,48,.09); }

.nav { min-height: var(--header-h); display: flex; align-items: center; justify-content: space-between; gap: 28px; }

.brand { display: flex; align-items: center; gap: 13px; flex: 0 0 auto; }
.brand-mark { width: 38px; height: 38px; flex: 0 0 auto; }
.brand-copy { line-height: 1; }
.brand-copy strong {
  display: block; font-size: 22px; font-weight: 700;
  letter-spacing: -0.05em; color: var(--navy-900);
}
.brand-copy span {
  display: block; margin-top: 5px;
  font-size: 9.5px; font-weight: 500; letter-spacing: .16em;
  text-transform: uppercase; color: var(--muted-soft);
}

.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links > li { position: relative; list-style: none; }
.nav-links { margin: 0; padding: 0; }
.nav-link {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 8px 0; font-size: 14.5px; font-weight: 500; color: var(--ink);
  position: relative; transition: color .25s var(--ease);
  background: none; border: 0; cursor: pointer;
}
.nav-link::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: 0;
  height: 1.5px; background: var(--navy-800); transition: right .32s var(--ease);
}
.nav-link:hover::after, .nav-link[aria-current="page"]::after, .has-drop:hover .nav-link::after { right: 0; }
.nav-link[aria-current="page"] { color: var(--navy-800); font-weight: 600; }
.caret { width: 9px; height: 9px; opacity: .55; transition: transform .3s var(--ease); }
.has-drop:hover .caret { transform: rotate(180deg); }

.dropdown {
  position: absolute; top: calc(100% + 14px); left: 50%; transform: translate(-50%, 10px);
  min-width: 330px; padding: 12px; margin: 0; list-style: none;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: 0 24px 60px rgba(7,26,48,.13);
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity .28s var(--ease), transform .28s var(--ease), visibility .28s;
}
.has-drop:hover .dropdown, .has-drop:focus-within .dropdown {
  opacity: 1; visibility: visible; pointer-events: auto; transform: translate(-50%, 0);
}
.dropdown::before {
  content: ""; position: absolute; top: -14px; left: 0; right: 0; height: 14px;
}
.dropdown a {
  display: flex; align-items: baseline; gap: 12px;
  padding: 10px 14px; border-radius: 3px;
  font-size: 14px; line-height: 1.45; color: var(--ink);
  transition: background .2s var(--ease), color .2s var(--ease);
}
.dropdown a:hover { background: var(--off); color: var(--navy-800); }
.dropdown .num {
  font-size: 11px; font-weight: 600; color: var(--blue);
  font-variant-numeric: tabular-nums; flex: 0 0 auto;
}
.dropdown .all { margin-top: 6px; border-top: 1px solid var(--line-soft); padding-top: 14px; font-weight: 600; }

.nav-cta { display: flex; align-items: center; gap: 14px; flex: 0 0 auto; }

.menu-toggle {
  display: none; width: 46px; height: 46px; padding: 0;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: #fff; cursor: pointer;
}
.menu-toggle span { display: block; width: 18px; height: 1.5px; margin: 4px auto; background: var(--navy-900); transition: .3s var(--ease); }
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* Mobile drawer */
.mobile-nav {
  position: fixed; inset: 0; z-index: 200;
  background: var(--navy-950); color: #fff;
  padding: 26px 0 60px; overflow-y: auto;
  transform: translateY(-100%); transition: transform .45s var(--ease);
}
.mobile-nav.is-open { transform: translateY(0); }
.mobile-nav-head { display: flex; align-items: center; justify-content: space-between; min-height: 58px; }
.mobile-nav-head .brand-copy strong { color: #fff; }
.mobile-nav-head .brand-copy span { color: rgba(255,255,255,.45); }
.mobile-close {
  width: 46px; height: 46px; border: 1px solid rgba(255,255,255,.2); border-radius: var(--radius);
  background: none; color: #fff; font-size: 20px; line-height: 1; cursor: pointer;
}
.mobile-list { list-style: none; margin: 34px 0 0; padding: 0; }
.mobile-list > li { border-bottom: 1px solid rgba(255,255,255,.1); }
.mobile-list > li > a { display: block; padding: 17px 0; font-size: 20px; font-weight: 500; letter-spacing: -0.03em; }
.mobile-sub { list-style: none; margin: 0 0 16px; padding: 0 0 0 2px; }
.mobile-sub a { display: block; padding: 8px 0; font-size: 14.5px; color: rgba(255,255,255,.62); }
.mobile-sub a:hover { color: #fff; }
.mobile-foot { margin-top: 34px; display: grid; gap: 12px; }
.mobile-foot a.small { font-size: 14px; color: rgba(255,255,255,.65); }

/* ── Hero ─────────────────────────────────────────────── */
.hero {
  position: relative; isolation: isolate;
  min-height: clamp(560px, 82vh, 760px);
  display: flex; align-items: flex-end;
  background: var(--navy-950); color: #fff; overflow: hidden;
}
.hero-media { position: absolute; inset: 0; z-index: -2; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; opacity: .55; }
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(to right, rgba(5,16,31,.95) 0%, rgba(5,16,31,.75) 45%, rgba(5,16,31,.35) 100%),
    linear-gradient(to top, rgba(5,16,31,.92) 0%, rgba(5,16,31,0) 55%);
}
.hero-inner { padding: 120px 0 64px; max-width: 820px; }
.hero h1 { color: #fff; }
.hero h1 em { font-style: normal; color: #7fc0ef; }
.hero .eyebrow { color: #7fc0ef; }
.hero-lead { margin-top: 26px; max-width: 620px; color: rgba(255,255,255,.78); font-size: clamp(1rem, 1.3vw, 1.17rem); }
.hero-actions { margin-top: 38px; display: flex; flex-wrap: wrap; gap: 14px; }

.hero-stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 30px; margin-top: 60px; padding-top: 34px;
  border-top: 1px solid rgba(255,255,255,.16);
  max-width: 720px;
}
.hero-stats dt { font-size: clamp(1.7rem, 2.6vw, 2.2rem); font-weight: 600; letter-spacing: -0.04em; color: #fff; }
.hero-stats dd { margin: 7px 0 0; font-size: 13px; line-height: 1.5; color: rgba(255,255,255,.62); }

/* ── Page hero (εσωτερικές σελίδες) ───────────────────── */
.page-hero {
  position: relative; isolation: isolate;
  background: var(--navy-900); color: #fff; overflow: hidden;
  padding: 78px 0 74px;
}
.page-hero-media { position: absolute; inset: 0; z-index: -2; }
.page-hero-media img { width: 100%; height: 100%; object-fit: cover; opacity: .3; }
.page-hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(to right, rgba(7,26,48,.95), rgba(7,26,48,.72));
}
.page-hero h1 { color: #fff; max-width: 17ch; }
.page-hero .eyebrow { color: #7fc0ef; }
.page-hero .lead { margin-top: 22px; max-width: 62ch; color: rgba(255,255,255,.76); }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 26px; font-size: 12.5px; color: rgba(255,255,255,.55); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb span[aria-current] { color: rgba(255,255,255,.85); }

/* ── Ενότητες ─────────────────────────────────────────── */
section { position: relative; }
.sec { padding: clamp(72px, 9vw, 120px) 0; }
.sec-tight { padding: clamp(56px, 6vw, 84px) 0; }
.sec-off { background: var(--off); }
.sec-dark { background: var(--navy-950); color: rgba(255,255,255,.75); }
.sec-dark h2, .sec-dark h3 { color: #fff; }
.sec-dark .eyebrow { color: #7fc0ef; }
.sec-dark .lead { color: rgba(255,255,255,.72); }

.sec-head { max-width: 760px; margin-bottom: clamp(44px, 5vw, 66px); }
.sec-head.center { margin-inline: auto; text-align: center; }
.sec-head .lead { margin-top: 22px; }
.sec-head-split {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: end;
  margin-bottom: clamp(44px, 5vw, 66px);
}
.sec-head-split .lead { margin: 0; padding-bottom: 6px; }

/* ── Λωρίδα χαρακτηριστικών ───────────────────────────── */
.feature-strip { border-bottom: 1px solid var(--line); background: #fff; }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.feature-item {
  padding: 38px 34px 38px 0; border-right: 1px solid var(--line-soft);
}
.feature-grid .feature-item:first-child { padding-left: 0; }
.feature-item:not(:first-child) { padding-left: 34px; }
.feature-item:last-child { border-right: 0; padding-right: 0; }
.feature-item .ico { width: 26px; height: 26px; margin-bottom: 16px; color: var(--blue); }
.feature-item h3 { font-size: 15px; font-weight: 600; letter-spacing: -0.02em; }
.feature-item p { margin-top: 7px; font-size: 13.5px; line-height: 1.6; color: var(--muted); }

/* ── Intro split ──────────────────────────────────────── */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 6vw, 90px); align-items: center; }
.split-media { position: relative; }
.split-media img { width: 100%; height: 100%; object-fit: cover; border-radius: var(--radius); }
.split-media.tall img { aspect-ratio: 4 / 5; }
.split-media.wide img { aspect-ratio: 4 / 3; }

.badge-card {
  position: absolute; right: -28px; bottom: -28px;
  padding: 26px 28px; background: var(--navy-900); color: #fff;
  border-radius: var(--radius); max-width: 240px;
}
.badge-card strong { display: block; font-size: 2.1rem; font-weight: 600; letter-spacing: -0.04em; line-height: 1; }
.badge-card span { display: block; margin-top: 10px; font-size: 12.5px; line-height: 1.5; color: rgba(255,255,255,.65); }

.check-list { list-style: none; margin: 30px 0 0; padding: 0; display: grid; gap: 14px; }
.check-list li { display: flex; gap: 13px; font-size: 15px; line-height: 1.6; }
.check-list li::before {
  content: ""; flex: 0 0 auto; width: 18px; height: 18px; margin-top: 4px;
  border-radius: 50%; background: var(--blue-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232f7fbf' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center / 11px no-repeat;
}
.sec-dark .check-list li::before { background-color: rgba(127,192,239,.16); }

/* ── Κάρτες εξετάσεων ─────────────────────────────────── */
/* Πλέγμα 10 κατηγοριών + κάρτα CTA που συμπληρώνει πάντα την τελευταία σειρά */
.exam-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line); border-left: 1px solid var(--line);
}
.exam-card {
  display: flex; flex-direction: column; gap: 14px;
  padding: 38px 34px 34px;
  border-right: 1px solid var(--line); border-bottom: 1px solid var(--line);
  background: #fff; position: relative; isolation: isolate;
  transition: background .35s var(--ease), transform .35s var(--ease);
}
.exam-card::before {
  content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 2px;
  background: var(--blue); transform: scaleX(0); transform-origin: left;
  transition: transform .4s var(--ease);
}
.exam-card:hover { background: var(--off); }
.exam-card:hover::before { transform: scaleX(1); }
.exam-card .num {
  font-size: 11.5px; font-weight: 600; letter-spacing: .16em;
  color: var(--blue); font-variant-numeric: tabular-nums;
}
.exam-card h3 { font-size: 1.16rem; letter-spacing: -0.028em; line-height: 1.28; }
.exam-card p { font-size: 14.2px; line-height: 1.65; color: var(--muted); }
.exam-card .go {
  margin-top: auto; padding-top: 16px;
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; color: var(--navy-800);
}
.exam-card .go::after { content: "→"; transition: transform .3s var(--ease); }
.exam-card:hover .go::after { transform: translateX(5px); }

.exam-card--cta { grid-column: span 2; background: var(--navy-950); color: rgba(255,255,255,.72); }
.exam-card--cta h3 { color: #fff; }
.exam-card--cta p { color: rgba(255,255,255,.66); }
.exam-card--cta .num { color: #7fc0ef; }
.exam-card--cta .go { color: #fff; }
.exam-card--cta:hover { background: var(--navy-900); }
.exam-card--cta::before { background: #7fc0ef; }

/* Κάρτες με εικόνα */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 30px; }
.icard { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: border-color .3s var(--ease), transform .35s var(--ease), box-shadow .35s var(--ease); }
.icard:hover { border-color: var(--navy-800); transform: translateY(-4px); box-shadow: 0 20px 50px rgba(7,26,48,.09); }
.icard-media { overflow: hidden; }
.icard-media img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; transition: transform .8s var(--ease); }
.icard:hover .icard-media img { transform: scale(1.05); }
.icard-body { padding: 26px 26px 28px; display: flex; flex-direction: column; gap: 11px; flex: 1; }
.icard-body .num { font-size: 11.5px; font-weight: 600; letter-spacing: .16em; color: var(--blue); }
.icard-body h3 { font-size: 1.12rem; line-height: 1.3; }
.icard-body p { font-size: 14px; color: var(--muted); line-height: 1.62; }
.icard-body .go { margin-top: auto; padding-top: 14px; font-size: 13px; font-weight: 600; color: var(--navy-800); }
.icard-body .go::after { content: " →"; }

/* ── Διαδικασία ───────────────────────────────────────── */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid rgba(255,255,255,.16); }
.step { padding: 40px 36px 0 0; border-right: 1px solid rgba(255,255,255,.14); }
.step:not(:first-child) { padding-left: 36px; }
.step:last-child { border-right: 0; padding-right: 0; }
.step .n { font-size: 12px; font-weight: 600; letter-spacing: .18em; color: #7fc0ef; }
.step h3 { margin-top: 16px; font-size: 1.22rem; }
.step p { margin-top: 13px; font-size: 14.5px; line-height: 1.66; color: rgba(255,255,255,.68); }

/* ── Ποιότητα / πιστοποιήσεις ─────────────────────────── */
.cert-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.cert {
  padding: 32px 30px; border: 1px solid rgba(255,255,255,.15); border-radius: var(--radius);
  background: rgba(255,255,255,.035); transition: background .3s var(--ease), border-color .3s var(--ease);
}
.cert:hover { background: rgba(255,255,255,.07); border-color: rgba(255,255,255,.3); }
.cert .tag { font-size: 11px; font-weight: 600; letter-spacing: .17em; color: #7fc0ef; text-transform: uppercase; }
.cert h3 { margin-top: 15px; font-size: 1.08rem; line-height: 1.35; }
.cert p { margin-top: 12px; font-size: 14px; line-height: 1.62; color: rgba(255,255,255,.65); }

/* ── Γκαλερί ──────────────────────────────────────────── */
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.gallery figure { margin: 0; overflow: hidden; border-radius: var(--radius); aspect-ratio: 4 / 3; }
.gallery img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.gallery figure:hover img { transform: scale(1.04); }
/* Ψηλό πλακίδιο: καταλαμβάνει δύο σειρές και παίρνει το ύψος τους */
.gallery figure.tall { grid-row: span 2; aspect-ratio: auto; }

/* ── CTA band ─────────────────────────────────────────── */
.cta-band {
  position: relative; isolation: isolate; overflow: hidden;
  background: var(--navy-950); color: #fff;
  padding: clamp(72px, 9vw, 116px) 0;
}
.cta-band-media { position: absolute; inset: 0; z-index: -2; }
.cta-band-media img { width: 100%; height: 100%; object-fit: cover; opacity: .3; }
.cta-band::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(to right, rgba(5,16,31,.94), rgba(5,16,31,.6)); }
.cta-band h2 { color: #fff; max-width: 18ch; }
.cta-band p { margin-top: 20px; max-width: 56ch; color: rgba(255,255,255,.75); }
.cta-actions { margin-top: 36px; display: flex; flex-wrap: wrap; gap: 14px; }

/* ── Πίνακας / λίστα εξετάσεων σε σελίδα κατηγορίας ───── */
.detail-layout { display: grid; grid-template-columns: 1fr 340px; gap: clamp(40px, 5vw, 72px); align-items: start; }

.prose h2 { font-size: clamp(1.5rem, 2.4vw, 1.95rem); margin-top: 52px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 1.16rem; margin-top: 34px; }
.prose p { margin-top: 16px; color: var(--muted); }
.prose > p:first-of-type { margin-top: 20px; }
.prose ul { margin: 18px 0 0; padding: 0; list-style: none; display: grid; gap: 11px; }
.prose ul li { position: relative; padding-left: 22px; font-size: 15.2px; line-height: 1.62; color: var(--muted); }
.prose ul li::before { content: ""; position: absolute; left: 0; top: 11px; width: 7px; height: 1.5px; background: var(--blue); }
.prose ul li strong { color: var(--ink); font-weight: 600; }
.prose .note {
  margin-top: 30px; padding: 24px 26px; border-left: 2px solid var(--blue);
  background: var(--off); font-size: 14.6px; line-height: 1.68; color: var(--muted);
}
.prose .note strong { color: var(--navy-900); }

.panel-cols { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px 34px; margin-top: 20px; }
.panel-cols ul { margin: 0; }

.sidecard {
  position: sticky; top: calc(var(--header-h) + 24px);
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.sidecard-head { padding: 26px 26px 22px; background: var(--navy-900); color: #fff; }
.sidecard-head h3 { color: #fff; font-size: 1.12rem; }
.sidecard-head p { margin-top: 10px; font-size: 13.6px; line-height: 1.6; color: rgba(255,255,255,.68); }
.sidecard-body { padding: 24px 26px 26px; background: #fff; }
.sidecard-body dl { margin: 0; display: grid; gap: 16px; }
.sidecard-body dt { font-size: 11px; font-weight: 600; letter-spacing: .15em; text-transform: uppercase; color: var(--muted-soft); }
.sidecard-body dd { margin: 4px 0 0; font-size: 14.6px; line-height: 1.55; }
.sidecard-body .btn { width: 100%; margin-top: 24px; }

.chip-row { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 20px; }
.chip {
  display: inline-flex; align-items: center; padding: 7px 14px;
  border: 1px solid var(--line); border-radius: 999px;
  font-size: 12.5px; color: var(--muted); background: #fff;
  transition: border-color .25s var(--ease), color .25s var(--ease);
}
.chip:hover { border-color: var(--navy-800); color: var(--navy-800); }
.chip[aria-current="page"] { background: var(--navy-800); border-color: var(--navy-800); color: #fff; }

/* ── Ομάδα ────────────────────────────────────────────── */
.person { display: grid; grid-template-columns: 300px 1fr; gap: clamp(30px, 4vw, 56px); align-items: start; padding: clamp(40px, 5vw, 60px) 0; border-top: 1px solid var(--line); }
.person:first-of-type { border-top: 0; padding-top: 0; }
.person-media img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; border-radius: var(--radius); }
.person-role { font-size: 11.5px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--blue); }
.person h2 { margin-top: 12px; font-size: clamp(1.4rem, 2.3vw, 1.8rem); }
.person .bio { margin-top: 18px; }
.person .bio p { color: var(--muted); font-size: 15.2px; }
.person dl { margin: 22px 0 0; display: grid; gap: 14px; }
.person dt { font-size: 11px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--navy-800); }
.person dd { margin: 5px 0 0; font-size: 14.8px; line-height: 1.62; color: var(--muted); }

/* ── Επικοινωνία ──────────────────────────────────────── */
.contact-layout { display: grid; grid-template-columns: 1fr 1.05fr; gap: clamp(40px, 5vw, 80px); align-items: start; }
.info-list { display: grid; gap: 0; margin: 0; }
.info-row { display: grid; grid-template-columns: 130px 1fr; gap: 20px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.info-row:first-child { padding-top: 0; }
.info-row dt { font-size: 11.5px; font-weight: 600; letter-spacing: .15em; text-transform: uppercase; color: var(--muted-soft); padding-top: 3px; }
.info-row dd { margin: 0; font-size: 16px; line-height: 1.6; }
.info-row dd a:hover { color: var(--blue); }
.info-row dd .sub { display: block; font-size: 13.5px; color: var(--muted); margin-top: 3px; }

.form { display: grid; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 8px; }
.field label { font-size: 12px; font-weight: 600; letter-spacing: .09em; text-transform: uppercase; color: var(--muted); }
.field input, .field select, .field textarea {
  width: 100%; padding: 15px 16px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius);
  font-size: 15px; transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--navy-800); box-shadow: 0 0 0 3px rgba(47,127,191,.12);
}
.consent { display: flex; gap: 12px; align-items: flex-start; font-size: 13.4px; line-height: 1.55; color: var(--muted); }
.consent input { width: 17px; height: 17px; margin-top: 3px; flex: 0 0 auto; accent-color: var(--navy-800); }
.consent a { color: var(--navy-800); text-decoration: underline; text-underline-offset: 2px; }
.form-note { font-size: 12.6px; color: var(--muted-soft); }
.form-status { font-size: 14px; padding: 14px 16px; border-radius: var(--radius); display: none; }
.form-status.ok { display: block; background: #eef8f2; color: #1c6b42; border: 1px solid #bfe3cd; }

.map-embed { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.map-embed iframe { display: block; width: 100%; height: 420px; border: 0; filter: grayscale(.35) contrast(1.02); }

/* ── FAQ ──────────────────────────────────────────────── */
.faq { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 26px 0; background: none; border: 0; cursor: pointer; text-align: left;
  font-size: clamp(1rem, 1.5vw, 1.13rem); font-weight: 500; letter-spacing: -0.02em; color: var(--navy-900);
}
.faq-q .sign { flex: 0 0 auto; width: 16px; height: 16px; position: relative; }
.faq-q .sign::before, .faq-q .sign::after { content: ""; position: absolute; background: var(--navy-800); transition: transform .35s var(--ease); }
.faq-q .sign::before { left: 0; top: 7.25px; width: 16px; height: 1.5px; }
.faq-q .sign::after { left: 7.25px; top: 0; width: 1.5px; height: 16px; }
.faq-q[aria-expanded="true"] .sign::after { transform: rotate(90deg); }
.faq-a { overflow: hidden; height: 0; transition: height .4s var(--ease); }
.faq-a-inner { padding-bottom: 28px; font-size: 15.2px; line-height: 1.72; color: var(--muted); max-width: 74ch; }

/* ── Footer ───────────────────────────────────────────── */
.site-footer { background: var(--navy-950); color: rgba(255,255,255,.6); padding: clamp(64px, 7vw, 92px) 0 0; font-size: 14.4px; }
.footer-top { display: grid; grid-template-columns: 1.45fr 1fr 1fr 1.15fr; gap: 44px; padding-bottom: 56px; }
.footer-brand .brand-copy strong { color: #fff; }
.footer-brand .brand-copy span { color: rgba(255,255,255,.42); }
.footer-brand p { margin-top: 22px; max-width: 34ch; line-height: 1.68; color: rgba(255,255,255,.6); }
.footer-col h4 { font-size: 11.5px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: #fff; margin-bottom: 20px; }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 11px; }
.footer-col a { transition: color .25s var(--ease); }
.footer-col a:hover { color: #fff; }
.footer-col .hours { display: grid; gap: 12px; }
.footer-col .hours div { display: flex; justify-content: space-between; gap: 16px; border-bottom: 1px solid rgba(255,255,255,.09); padding-bottom: 11px; }
.footer-col .hours span:last-child { color: rgba(255,255,255,.85); }
.footer-contact { margin-top: 22px; display: grid; gap: 8px; }
.footer-contact a { color: #fff; font-size: 15.4px; font-weight: 500; }
.footer-bottom {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px;
  padding: 24px 0 30px; border-top: 1px solid rgba(255,255,255,.1);
  font-size: 12.8px; color: rgba(255,255,255,.45);
}
.footer-bottom .links { display: flex; flex-wrap: wrap; gap: 20px; }
.footer-bottom a:hover { color: #fff; }
.footer-bottom .madeby { display: inline-flex; align-items: center; gap: 5px; }
.footer-bottom .madeby strong { font-weight: 600; letter-spacing: .06em; color: rgba(255,255,255,.72); transition: color .25s var(--ease); }
.footer-bottom .madeby:hover strong { color: #fff; }

/* ── Πλωτά κουμπιά επικοινωνίας (mobile) ─────────────── */
.floating-cta { display: none; }

/* ── Reveal on scroll ─────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }

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

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 1080px) {
  .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }
  .detail-layout { grid-template-columns: 1fr; }
  .sidecard { position: static; }
  .exam-grid { grid-template-columns: repeat(3, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-item:nth-child(2) { border-right: 0; padding-right: 0; }
  .feature-item:nth-child(3) { padding-left: 0; border-top: 1px solid var(--line-soft); }
  .feature-item:nth-child(4) { border-top: 1px solid var(--line-soft); }
  .feature-item:nth-child(3), .feature-item:nth-child(4) { padding-top: 34px; }
}

@media (max-width: 960px) {
  :root { --container: min(1240px, calc(100% - 40px)); --header-h: 72px; }
  .nav-links, .nav-cta .btn { display: none; }
  .menu-toggle { display: block; }
  .topbar-links .hide-sm { display: none; }
  .split { grid-template-columns: 1fr; }
  .split-media { order: -1; }
  .split-media.tall img { aspect-ratio: 4 / 3; }
  .badge-card { right: 16px; bottom: -22px; }
  .sec-head-split { grid-template-columns: 1fr; gap: 22px; align-items: start; }
  .steps { grid-template-columns: 1fr; }
  .step { padding: 30px 0; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.14); }
  .step:not(:first-child) { padding-left: 0; }
  .step:last-child { border-bottom: 0; padding-bottom: 0; }
  .cert-grid { grid-template-columns: 1fr; gap: 16px; }
  .contact-layout { grid-template-columns: 1fr; }
  .person { grid-template-columns: 1fr; }
  .person-media { max-width: 300px; }
  .panel-cols { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .gallery figure.tall { grid-row: span 1; aspect-ratio: 4 / 3; }
  .exam-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { padding: 84px 0 54px; }
}

@media (max-width: 680px) {
  body { font-size: 16px; }
  :root { --container: min(1240px, calc(100% - 34px)); }
  .brand { gap: 10px; }
  .brand-mark { width: 34px; height: 34px; }
  .brand-copy strong { font-size: 20px; }
  .brand-copy span { font-size: 8px; letter-spacing: .1em; }
  .topbar-hours { display: none; }
  .topbar-inner { justify-content: center; }
  .hero { min-height: auto; }
  .hero-stats { grid-template-columns: 1fr; gap: 22px; }
  .hero-stats > div { display: flex; align-items: baseline; gap: 14px; }
  .hero-stats dt { font-size: 1.6rem; }
  .hero-stats dd { margin: 0; }
  .hero-actions .btn, .cta-actions .btn { width: 100%; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-item { padding: 26px 0 !important; border-right: 0; border-top: 1px solid var(--line-soft); }
  .feature-item:first-child { border-top: 0; }
  .exam-grid { grid-template-columns: 1fr; }
  .exam-card--cta { grid-column: span 1; }
  .card-grid { grid-template-columns: 1fr; gap: 22px; }
  .form-row { grid-template-columns: 1fr; }
  .info-row { grid-template-columns: 1fr; gap: 6px; }
  .footer-top { grid-template-columns: 1fr; gap: 38px; }
  .gallery { grid-template-columns: 1fr; }
  .badge-card { position: static; max-width: none; margin-top: 16px; }
  body.has-floating { padding-bottom: 66px; }
  .floating-cta {
    display: grid; grid-template-columns: 1fr 1fr; position: fixed; left: 0; right: 0; bottom: 0; z-index: 90;
    background: var(--navy-950); border-top: 1px solid rgba(255,255,255,.12);
  }
  .floating-cta a {
    display: flex; align-items: center; justify-content: center; gap: 8px;
    min-height: 62px; color: #fff; font-size: 14px; font-weight: 600;
  }
  .floating-cta a + a { border-left: 1px solid rgba(255,255,255,.12); }
  .map-embed iframe { height: 320px; }
}

@media print {
  .topbar, .site-header, .floating-cta, .cta-band, .mobile-nav { display: none; }
  body { font-size: 12pt; }
}

/* Original BIOLAB identity and staff portraits. */
.brand-logo { width: 98px; height: 90px; object-fit: contain; display: block; }
.footer-brand .brand-logo { width: 120px; height: auto; }
.person-media img { aspect-ratio: auto; height: auto; object-fit: contain; object-position: center top; background: #f1f4f7; }
.analysis-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:24px; }
.analysis-card { padding:34px; border:1px solid var(--line); border-radius:var(--radius); background:#fff; }
.analysis-card .num { color:var(--blue); font-size:14px; font-weight:600; }
.analysis-card h3 { margin:14px 0; font-size:24px; line-height:1.3; }
.analysis-card h4 { margin:24px 0 8px; font-size:16px; }
.analysis-card p { color:var(--muted); line-height:1.75; }
.analysis-card .textlink { display:inline-block; margin-top:24px; }
.analysis-search { display:block; font-size:14px; font-weight:600; max-width:560px; }
.analysis-search input { display:block; margin-top:10px; width:100%; padding:16px 18px; border:1px solid #aebdc9; border-radius:8px; font:inherit; background:#fff; color:var(--ink); }
.analysis-search input:focus-visible { outline:2px solid var(--blue); outline-offset:3px; }
.analysis-status { margin:16px 0 24px; color:var(--muted); font-size:14px; }
.analysis-note { margin-top:30px; max-width:80ch; color:var(--muted); line-height:1.7; }
.analysis-card[hidden] { display:none; }
.team-preview-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:28px; margin:32px 0; }
.team-preview-grid img { width:100%; height:330px; object-fit:contain; object-position:center; background:#f1f4f7; border-radius:var(--radius); }
.team-preview-grid h3 { margin:18px 0 8px; font-size:21px; }
.team-preview-grid p { color:var(--muted); }
@media(max-width:700px) {
 .brand-logo { width:78px; height:auto; }
 .analysis-grid,.team-preview-grid { grid-template-columns:1fr; }
 .analysis-card { padding:24px; }
 .analysis-card h3 { font-size:22px; }
 .team-preview-grid img { height:350px; }
}

/* White navigation blends with the supplied logo background. */
.topbar { background: #0b1c2b; }
.site-header, .mobile-nav { background: #fff; color: #0b1c2b; }
.site-header {
  border-bottom-color: rgba(11,28,43,.12);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.site-header .nav-link, .site-header .nav-link[aria-current="page"] { color: #0b1c2b; }
.site-header .nav-link::after { background: #0b1c2b; }
.site-header .nav-link:hover { color: #285d85; }
.site-header .nav-cta > .btn, .mobile-foot .btn { background: #0b1c2b; border-color: #0b1c2b; color: #fff; }
.site-header .nav-cta > .btn:hover, .mobile-foot .btn:hover { background: #23445f; border-color: #23445f; }
.site-header .menu-toggle { background: transparent; border-color: rgba(11,28,43,.3); }
.site-header .menu-toggle span { background: #0b1c2b; }
.site-header .dropdown { background: #fff; border-color: rgba(11,28,43,.15); }
.site-header .dropdown a { color: #0b1c2b; }
.site-header .dropdown a:hover { background: #eef5fa; color: #285d85; }
.site-header .dropdown .num { color: #285d85; }
.mobile-close { color: #0b1c2b; border-color: rgba(11,28,43,.3); }
.mobile-list > li { border-bottom-color: rgba(11,28,43,.12); }
.mobile-sub a, .mobile-foot a.small { color: #334f66; }
.mobile-sub a:hover { color: #0b1c2b; }
.site-header a:focus-visible, .site-header button:focus-visible,
.mobile-nav a:focus-visible, .mobile-nav button:focus-visible { outline: 2px solid #285d85; outline-offset: 4px; }

/* User-provided horizontal DNA logo in the navigation. */
.site-header .brand-logo-dna, .mobile-nav .brand-logo-dna { width: 170px; height: auto; }
@media (max-width: 700px) {
  .site-header .brand-logo-dna, .mobile-nav .brand-logo-dna { width: 140px; }
}