/* ============================================================
   GRADEX s.r.o. — design system
   Colors: navy #0D4671 · teal #3C828D · mint #76CCB1
   Type:   Questrial (display) · Hanken Grotesk (body)
   ============================================================ */

:root {
  --navy: #0D4671;
  --navy-deep: #082C4A;
  --navy-ink: #0A2540;
  --teal: #3C828D;
  --mint: #76CCB1;
  --paper: #F6F9FA;
  --white: #FFFFFF;
  --ink: #16283A;
  --ink-soft: #4A5D6E;
  --line: #DDE6EB;

  --font-display: "Questrial", "Hanken Grotesk", system-ui, sans-serif;
  --font-body: "Hanken Grotesk", system-ui, sans-serif;

  --container: 1200px;
  --radius: 14px;
  --shadow: 0 18px 50px -22px rgba(13, 70, 113, .28);
  --transition: .28s cubic-bezier(.4, 0, .2, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: var(--teal); text-decoration: none; }
a:hover { color: var(--navy); }

:focus-visible {
  outline: 3px solid var(--mint);
  outline-offset: 2px;
  border-radius: 4px;
}

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

/* ---------- typography ---------- */

h1, h2, h3, .display {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.12;
  color: var(--navy-ink);
  letter-spacing: -.01em;
}

h1 { font-size: clamp(2.6rem, 6.2vw, 4.6rem); }
h2 { font-size: clamp(1.9rem, 4vw, 2.9rem); }
h3 { font-size: clamp(1.25rem, 2.2vw, 1.55rem); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 1.1rem;
}

/* stepped "gradus" mark — the signature motif */
.step-mark {
  flex: none;
  width: 26px;
  height: 14px;
  color: var(--mint);
}

.lead {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  color: var(--ink-soft);
  max-width: 46rem;
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  transition: background var(--transition), border-color var(--transition);
}

/* průhledná hlavička přes full-screen hero (homepage) */
.site-header.overlay {
  position: fixed;
  left: 0;
  right: 0;
  background: transparent;
  backdrop-filter: none;
  border-bottom-color: transparent;
}
.site-header.overlay.is-scrolled {
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(10px);
  border-bottom-color: var(--line);
}
.site-header.overlay:not(.is-scrolled) .brand { color: var(--white); }
.site-header.overlay:not(.is-scrolled) .nav-toggle { color: var(--white); }
@media (min-width: 681px) {
  .site-header.overlay:not(.is-scrolled) .main-nav a:not(.btn) { color: var(--white); }
  .site-header.overlay:not(.is-scrolled) .main-nav a[aria-current="page"] { border-bottom-color: var(--mint); }
  .site-header.overlay:not(.is-scrolled) .lang-switch { border-left-color: rgba(255, 255, 255, .35); }
  .site-header.overlay:not(.is-scrolled) .lang-switch a { color: rgba(255, 255, 255, .85); }
  .site-header.overlay:not(.is-scrolled) .lang-switch a:hover { color: var(--white); background: rgba(255, 255, 255, .16); }
  .site-header.overlay:not(.is-scrolled) .lang-switch a[aria-current="true"] { color: var(--navy-ink); background: var(--mint); }
  .site-header.overlay:not(.is-scrolled) .btn-primary { background: var(--mint); color: var(--navy-ink); }
}

.site-header .container {
  display: flex;
  align-items: center;
  gap: 2rem;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: .7rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
  color: var(--navy);
  letter-spacing: .02em;
}
.brand img { height: 40px; width: auto; }
.brand:hover { color: var(--navy); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.9rem;
  margin-left: auto;
}

.main-nav a {
  font-size: .98rem;
  font-weight: 600;
  color: var(--ink);
  padding-block: .4rem;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.main-nav a:hover { color: var(--navy); }
.main-nav a[aria-current="page"] {
  color: var(--navy);
  border-bottom-color: var(--mint);
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: .2rem;
  margin-left: .4rem;
  padding-left: 1rem;
  border-left: 1px solid var(--line);
}
.lang-switch a {
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--ink-soft);
  padding: .28rem .5rem;
  border-radius: 7px;
}
.lang-switch a:hover { color: var(--navy); background: rgba(13, 70, 113, .06); }
.lang-switch a[aria-current="true"] { color: var(--navy); background: rgba(118, 204, 177, .28); }

.nav-toggle {
  display: none;
  margin-left: auto;
  background: none;
  border: 0;
  padding: .5rem;
  cursor: pointer;
  color: var(--navy);
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  padding: .85rem 1.7rem;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}
.btn:hover { transform: translateY(-2px); }

.btn-primary { background: var(--navy); color: var(--white); }
.btn-primary:hover { background: var(--navy-deep); color: var(--white); }

.btn-accent { background: var(--mint); color: var(--navy-ink); }
.btn-accent:hover { background: #8ADBC2; color: var(--navy-ink); }

.btn-ghost { border-color: var(--navy); color: var(--navy); background: transparent; }
.btn-ghost:hover { background: var(--navy); color: var(--white); }

.btn-ghost-light { border-color: rgba(255,255,255,.55); color: var(--white); background: transparent; }
.btn-ghost-light:hover { border-color: var(--mint); color: var(--mint); }

.btn .arrow { transition: transform var(--transition); }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- sections ---------- */

.section { padding-block: clamp(4rem, 9vw, 7.5rem); }
.section-paper { background: var(--paper); }

.section-head { max-width: 52rem; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-head p { margin-top: 1rem; }

.section-navy {
  background:
    radial-gradient(46rem 30rem at 110% -10%, rgba(60, 130, 141, .35), transparent 60%),
    radial-gradient(36rem 26rem at -10% 110%, rgba(118, 204, 177, .18), transparent 60%),
    var(--navy);
  color: rgba(255, 255, 255, .88);
}
.section-navy h1, .section-navy h2, .section-navy h3 { color: var(--white); }
.section-navy .eyebrow { color: var(--mint); }
.section-navy .lead { color: rgba(255, 255, 255, .78); }

/* ---------- hero (homepage, full-screen) ---------- */

.hero-full {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: var(--white);
}

.hero-full .hero-bg { position: absolute; inset: 0; }
.hero-full .hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-full .hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom right, rgba(13, 70, 113, .8), rgba(25, 85, 120, .6), rgba(60, 130, 141, .4));
}

.hero-full .container {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-block: calc(76px + clamp(3rem, 8vh, 6rem)) clamp(5rem, 12vh, 8rem);
}

.hero-full h1 { color: var(--white); margin-block: 1.2rem 1.4rem; }
.hero-full .eyebrow { color: var(--mint); }
.hero-full .lead { color: rgba(255, 255, 255, .88); margin-inline: auto; }

.hero-full .hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 2.2rem;
}

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 1.5rem;
  transform: translateX(-50%);
  z-index: 1;
  color: var(--white);
  opacity: .75;
  animation: scroll-cue 2.2s ease-in-out infinite;
}
.scroll-cue:hover { color: var(--mint); opacity: 1; }

@keyframes scroll-cue {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 9px); }
}

@media (prefers-reduced-motion: reduce) {
  .scroll-cue { animation: none; }
}

/* ---------- hero (split variant) ---------- */

.hero { overflow: hidden; }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
  padding-block: clamp(3.5rem, 8vw, 6.5rem);
}

.hero h1 { margin-block: 1.2rem 1.4rem; }
.hero h1 em { font-style: normal; color: var(--teal); }

.hero-steps {
  width: min(320px, 60%);
  height: auto;
  color: var(--mint);
  margin-block: 1.6rem 1.8rem;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.2rem; }

.hero-media { position: relative; }
.hero-media img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero-media::after {
  content: "";
  position: absolute;
  inset: auto -14px -14px auto;
  width: 62%;
  height: 62%;
  border: 2px solid var(--mint);
  border-radius: var(--radius);
  z-index: -1;
}

.hero-media figcaption {
  position: absolute;
  left: 1.1rem;
  bottom: 1.1rem;
  background: rgba(8, 44, 74, .82);
  color: var(--white);
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: .06em;
  padding: .45rem .9rem;
  border-radius: 999px;
}

/* ---------- stats band ---------- */

.stats { border-block: 1px solid var(--line); }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
}

.stat {
  background: var(--white);
  padding: clamp(1.8rem, 4vw, 2.8rem) clamp(1.2rem, 3vw, 2.2rem);
  text-align: center;
}

.stat strong {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  color: var(--navy);
  display: block;
  line-height: 1;
}

.stat span {
  display: block;
  margin-top: .6rem;
  color: var(--ink-soft);
  font-weight: 600;
  letter-spacing: .04em;
}

/* ---------- company cards (homepage grid) ---------- */

.company-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.6rem;
}

.company-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  color: inherit;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.company-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
  border-color: transparent;
  color: inherit;
}

.company-card .media {
  height: 180px;
  overflow: hidden;
  position: relative;
}
.company-card .media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}
.company-card:hover .media img { transform: scale(1.05); }

.media-abstract {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(18rem 12rem at 85% 0%, rgba(118, 204, 177, .5), transparent 65%),
    linear-gradient(135deg, var(--navy) 0%, var(--teal) 100%);
}
.media-abstract span {
  font-family: var(--font-display);
  font-size: 1.7rem;
  color: var(--white);
  letter-spacing: .03em;
}

.company-card .body { padding: 1.5rem 1.5rem 1.7rem; display: flex; flex-direction: column; gap: .7rem; flex: 1; }
.company-card h3 { display: flex; align-items: baseline; gap: .6rem; }
.company-card .country { font-size: .95rem; }
.company-card p { color: var(--ink-soft); font-size: .98rem; flex: 1; }

.tags { display: flex; flex-wrap: wrap; gap: .45rem; }
.tag {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--navy);
  background: rgba(118, 204, 177, .18);
  border: 1px solid rgba(60, 130, 141, .25);
  padding: .22rem .7rem;
  border-radius: 999px;
}

.card-link {
  font-weight: 700;
  color: var(--teal);
  display: inline-flex;
  align-items: center;
  gap: .4rem;
}
.company-card:hover .card-link { color: var(--navy); }

/* ---------- services strip ---------- */

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}

.service {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.8rem 1.7rem;
  transition: transform var(--transition), box-shadow var(--transition);
}
.service:hover { transform: translateY(-4px); box-shadow: var(--shadow); }

.service .glyph {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(13, 70, 113, .07);
  color: var(--navy);
  margin-bottom: 1.1rem;
}
.service h3 { font-family: var(--font-body); font-weight: 700; font-size: 1.15rem; margin-bottom: .5rem; }
.service p { color: var(--ink-soft); font-size: .97rem; }

/* ---------- company detail blocks ---------- */

.company-detail {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  padding-block: clamp(3rem, 6vw, 4.5rem);
}
.company-detail + .company-detail { border-top: 1px solid var(--line); }
.company-detail:nth-child(even) .detail-media { order: 2; }

.detail-media img {
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.detail-media .media-abstract {
  aspect-ratio: 16 / 11;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.detail-body .logo-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.1rem;
}
.detail-body .logo-row img { height: 44px; width: auto; }

.detail-body h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); }
.detail-body .country-line {
  font-size: .9rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--teal);
  margin-block: .5rem 1rem;
}
.detail-body p { color: var(--ink-soft); margin-bottom: 1.2rem; }

/* ---------- values / careers perks ---------- */

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}

.value {
  border-left: 3px solid var(--mint);
  padding: .4rem 0 .4rem 1.4rem;
}
.value h3 { font-family: var(--font-body); font-weight: 700; font-size: 1.15rem; margin-bottom: .45rem; }
.value p { color: var(--ink-soft); font-size: .97rem; }

.section-navy .value { border-left-color: var(--mint); }
.section-navy .value p { color: rgba(255,255,255,.75); }

/* ---------- CTA band ---------- */

.cta-band { text-align: left; }
.cta-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.cta-inner h2 { max-width: 34rem; }

/* ---------- forms ---------- */

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  max-width: 44rem;
}
.form-grid .full { grid-column: 1 / -1; }

label { font-weight: 700; font-size: .92rem; display: block; margin-bottom: .4rem; color: var(--navy-ink); }

input, textarea, select {
  width: 100%;
  font: inherit;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: .8rem 1rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(118, 204, 177, .35);
}
textarea { min-height: 140px; resize: vertical; }

/* honeypot — pole skryté před lidmi, roboti ho vyplní a odeslání se zablokuje */
.hp-wrap {
  position: absolute !important;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
}

/* ---------- contact ---------- */

.office-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.6rem;
}

.office {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem;
}
.office h3 { font-family: var(--font-body); font-weight: 700; font-size: 1.2rem; margin-bottom: .9rem; }
.office address { font-style: normal; color: var(--ink-soft); line-height: 1.8; }
.office a { font-weight: 600; }

/* ---------- právní stránky ---------- */

.legal { max-width: 50rem; }
.legal h2 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1.35rem;
  margin: 2.2rem 0 .7rem;
}
.legal h2:first-child { margin-top: 0; }
.legal p, .legal li { color: var(--ink-soft); }
.legal p { margin-bottom: .9rem; }
.legal ul { padding-left: 1.3rem; margin-bottom: 1rem; }
.legal li { margin-bottom: .35rem; }

/* ---------- footer ---------- */

.site-footer {
  background:
    radial-gradient(30rem 20rem at 100% 0%, rgba(60, 130, 141, .3), transparent 60%),
    radial-gradient(24rem 18rem at 0% 100%, rgba(118, 204, 177, .12), transparent 60%),
    var(--navy);
  color: rgba(255, 255, 255, .8);
  padding-block: clamp(3rem, 6vw, 4.5rem) 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
}

.site-footer .brand { color: var(--white); margin-bottom: 1rem; }
.site-footer h4 {
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--mint);
  margin-bottom: 1rem;
}
.site-footer ul { list-style: none; }
.site-footer li { margin-bottom: .55rem; }
.site-footer a { color: rgba(255, 255, 255, .8); }
.site-footer a:hover { color: var(--mint); }
.site-footer address { font-style: normal; line-height: 1.9; }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .15);
  padding-block: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  font-size: .9rem;
}

/* ---------- page hero (subpages) ---------- */

.page-hero { padding-block: clamp(3.5rem, 7vw, 5.5rem) clamp(2.5rem, 5vw, 4rem); }
.page-hero h1 { margin-top: .9rem; max-width: 18ch; }
.page-hero .lead { margin-top: 1.3rem; }

/* ---------- reveal animation ---------- */

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn:hover { transform: none; }
  .company-card:hover { transform: none; }
}

/* ---------- responsive ---------- */

@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-media { max-width: 480px; }
  .company-grid, .service-grid, .value-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .company-detail { grid-template-columns: 1fr; }
  .company-detail:nth-child(even) .detail-media { order: 0; }
}

@media (max-width: 680px) {
  .nav-toggle { display: block; }
  .main-nav {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    padding: .6rem 1.4rem 1.2rem;
    display: none;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding-block: .8rem; border-bottom: 1px solid var(--line); }
  .main-nav .btn { margin-top: 1rem; justify-content: center; }
  .lang-switch { border-left: 0; padding-left: 0; margin: .8rem 0 0; gap: .5rem; }
  .lang-switch a { border-bottom: 0; padding: .3rem .6rem; }

  .company-grid, .service-grid, .value-grid, .office-grid, .form-grid, .stats-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .stat { text-align: left; }
}