:root {
  --ink: #0f172a;
  --navy: #111c33;
  --panel: #16233d;
  --panel-2: #1a2946;
  --accent: #0891b2;
  --cyan: #67e8f9;
  --blue: #2563eb;
  --bg: #f5fdff;
  --soft: #eafbfa;
  --muted: #526173;
  --muted-on-dark: #b8c7d9;
  --line-dark: rgba(255, 255, 255, .09);
  --line-light: rgba(15, 23, 42, .1);
  --shadow: 0 24px 70px rgba(2, 8, 23, .22);
  --radius: 22px;
  --page-pad: clamp(1rem, 3vw, 3rem);
  --content: 1460px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Arial, sans-serif;
  color: var(--ink);
  background: var(--ink);
  line-height: 1.55;
}

a {
  color: inherit;
}

img {
  max-width: 100%;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(103, 232, 249, .75);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: -999px;
}

.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 20;
  border-radius: 999px;
  background: #fff;
  padding: .7rem 1rem;
  color: var(--ink);
}

.site-header,
.section,
footer {
  padding-left: max(var(--page-pad), calc((100vw - var(--content)) / 2));
  padding-right: max(var(--page-pad), calc((100vw - var(--content)) / 2));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 1.1rem;
  min-height: 78px;
  padding-top: .72rem;
  padding-bottom: .72rem;
  background:
    linear-gradient(90deg, rgba(15, 23, 42, .98), rgba(17, 28, 51, .96)),
    url("assets/tech-grid.svg") center/cover;
  border-bottom: 1px solid var(--line-dark);
  box-shadow: 0 18px 45px rgba(2, 8, 23, .2);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 18px;
  background: rgba(245, 253, 255, .96);
  padding: .45rem .75rem;
  box-shadow: 0 12px 30px rgba(2, 8, 23, .22);
}

.brand img {
  display: block;
  width: 178px;
  height: auto;
}

.nav {
  display: flex;
  gap: .95rem;
  margin-left: auto;
}

.nav a {
  color: #e9f7fb;
  font-weight: 780;
  text-decoration: none;
  opacity: .9;
}

.nav a:hover {
  color: var(--cyan);
  opacity: 1;
}

.header-call,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 880;
  text-decoration: none;
}

.header-call {
  background: linear-gradient(135deg, var(--cyan), var(--accent));
  color: #04111f;
  padding: .72rem 1.15rem;
  box-shadow: 0 14px 36px rgba(8, 145, 178, .34);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  margin-left: auto;
  border: 1px solid var(--line-dark);
  border-radius: 14px;
  background: rgba(255, 255, 255, .06);
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 7px;
  border-radius: 4px;
  background: #fff;
}

.section {
  padding-top: clamp(2.7rem, 4vw, 4.4rem);
  padding-bottom: clamp(2.7rem, 4vw, 4.4rem);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(360px, .95fr);
  gap: clamp(1.6rem, 3.5vw, 3.8rem);
  align-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 66% 35%, rgba(8, 145, 178, .22), transparent 34%),
    linear-gradient(115deg, rgba(15, 23, 42, .98), rgba(17, 28, 51, .94) 48%, rgba(15, 23, 42, .82)),
    url("assets/tech-grid.svg") center/cover;
  color: #fff;
}

.hero:before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, .04), transparent 42%);
  pointer-events: none;
}

.hero-copy,
.hero-media {
  position: relative;
  z-index: 1;
}

.eyebrow {
  margin: 0 0 .8rem;
  color: var(--cyan);
  font-size: .8rem;
  font-weight: 920;
  letter-spacing: .14em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.06;
}

h1 {
  max-width: 760px;
  color: #f8fcff;
  font-size: clamp(2.35rem, 4.2vw, 4rem);
}

h2 {
  max-width: 900px;
  font-size: clamp(1.7rem, 2.45vw, 2.6rem);
}

h3 {
  font-size: 1.18rem;
}

.lead {
  max-width: 650px;
  color: var(--muted-on-dark);
  font-size: clamp(1rem, 1.15vw, 1.12rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
  margin: 1.25rem 0;
}

.btn {
  padding: .85rem 1.18rem;
}

.primary {
  background: linear-gradient(135deg, var(--cyan), var(--accent) 54%, var(--blue));
  color: #04111f;
  box-shadow: 0 18px 42px rgba(8, 145, 178, .3);
}

.secondary {
  border: 1px solid rgba(255, 255, 255, .18);
  background: rgba(255, 255, 255, .08);
  color: #effbff;
  backdrop-filter: blur(10px);
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
}

.trust-row span {
  border: 1px solid rgba(103, 232, 249, .16);
  border-radius: 999px;
  background: rgba(255, 255, 255, .075);
  padding: .54rem .78rem;
  color: #deeff8;
  font-weight: 760;
}

.hero-media {
  margin: 0;
}

.hero-media img {
  display: block;
  width: 100%;
  max-height: 430px;
  aspect-ratio: 16 / 9.5;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: var(--radius);
  box-shadow: 0 30px 90px rgba(0, 0, 0, .38);
  filter: saturate(.95) contrast(1.04);
}

.hero-media:after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  background: linear-gradient(90deg, rgba(15, 23, 42, .34), rgba(15, 23, 42, .08) 45%, rgba(8, 145, 178, .12));
  pointer-events: none;
}

.hero-media:before {
  content: "";
  position: absolute;
  inset: -18px 18px 18px -18px;
  z-index: -1;
  border: 1px solid rgba(103, 232, 249, .16);
  border-radius: 30px;
  background: linear-gradient(135deg, rgba(8, 145, 178, .22), rgba(37, 99, 235, .12));
}

.hero-media figcaption {
  margin: .65rem;
  color: rgba(232, 247, 252, .68);
  font-size: .78rem;
}

.section-head {
  margin-bottom: 1.35rem;
}

.section:not(.hero):not(.services-section):not(.fleet):not(.contact):not(.realizace):not(.why) {
  background: var(--bg);
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .9rem;
}

#sluzby {
  background:
    radial-gradient(circle at 16% 0%, rgba(8, 145, 178, .2), transparent 34%),
    linear-gradient(180deg, var(--navy), var(--ink));
  color: #fff;
}

#sluzby .section-head h2 {
  color: #f8fcff;
}

.cards article,
.reviews blockquote,
.faq details {
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  background: #fff;
  padding: 1.05rem;
  box-shadow: 0 18px 45px rgba(15, 23, 42, .07);
}

.services article {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .1);
  background: linear-gradient(180deg, rgba(26, 41, 70, .96), rgba(17, 28, 51, .98));
  padding: 0;
  box-shadow: 0 20px 50px rgba(2, 8, 23, .28);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.services article:hover {
  transform: translateY(-4px);
  border-color: rgba(103, 232, 249, .26);
  box-shadow: 0 26px 70px rgba(2, 8, 23, .4);
}

.service-photo {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 7.9;
  object-fit: cover;
  opacity: .82;
}

.services .card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .9rem 1rem .1rem;
}

.services .card-top img {
  width: 40px;
  height: 40px;
  filter: drop-shadow(0 0 18px rgba(103, 232, 249, .16));
}

.services .card-top span {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(103, 232, 249, .18);
  border-radius: 12px;
  background: rgba(8, 145, 178, .12);
  color: var(--cyan);
  font-size: .88rem;
  font-weight: 920;
}

.services h3,
.services p {
  padding-inline: 1rem;
}

.services h3 {
  color: #f8fcff;
}

.services p {
  margin-bottom: 1rem;
  color: var(--muted-on-dark);
}

.why {
  background:
    linear-gradient(135deg, rgba(245, 253, 255, .94), rgba(234, 251, 250, .9)),
    url("assets/pipe-pattern.svg") center/cover;
}

.why .section-head {
  border-left: 4px solid var(--accent);
  padding-left: 1rem;
}

.benefits {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: .75rem;
}

.benefits div {
  display: grid;
  min-height: 110px;
  align-content: center;
  justify-items: center;
  gap: .7rem;
  border: 1px solid rgba(8, 145, 178, .16);
  border-radius: 18px;
  background: rgba(255, 255, 255, .82);
  padding: .85rem;
  text-align: center;
  font-weight: 840;
  box-shadow: 0 15px 34px rgba(15, 23, 42, .07);
}

.benefits img {
  width: 42px;
  height: 42px;
  filter: drop-shadow(0 8px 18px rgba(8, 145, 178, .14));
}

.realizace {
  background: var(--bg);
}

.realizace .section-head {
  display: inline-block;
  border-radius: 22px;
  background:
    linear-gradient(135deg, rgba(15, 23, 42, .98), rgba(17, 28, 51, .96)),
    url("assets/tech-grid.svg") center/cover;
  padding: 1.15rem 1.3rem;
  color: #fff;
  box-shadow: 0 18px 42px rgba(15, 23, 42, .18);
}

.realizace .section-head h2 {
  color: #fff;
}

.before-after {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .95rem;
}

.before-after article {
  display: grid;
  gap: .65rem;
  border: 1px solid rgba(15, 23, 42, .15);
  border-radius: 20px;
  background: #fff;
  padding: .75rem;
  box-shadow: 0 18px 45px rgba(15, 23, 42, .08);
}

.before-after h3 {
  color: var(--ink);
  text-align: center;
}

.before-after article > div {
  display: grid;
  gap: .55rem;
}

.before-after figure {
  position: relative;
  overflow: hidden;
  margin: 0;
  border-radius: 14px;
  background: var(--navy);
}

.before-after img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 8.4;
  object-fit: cover;
}

.before-after span {
  position: absolute;
  top: .55rem;
  left: .55rem;
  z-index: 1;
  border-radius: 999px;
  background: rgba(15, 23, 42, .9);
  padding: .22rem .52rem;
  color: #fff;
  font-size: .72rem;
  font-weight: 900;
  text-transform: uppercase;
}

.fleet,
.contact {
  background:
    radial-gradient(circle at 78% 10%, rgba(8, 145, 178, .2), transparent 28%),
    linear-gradient(135deg, rgba(15, 23, 42, .97), rgba(17, 28, 51, .95)),
    url("assets/tech-grid.svg") center/cover;
  color: #fff;
}

.fleet .eyebrow,
.contact .eyebrow,
.contact a {
  color: var(--cyan);
}

.showcase {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 1rem;
}

.showcase img {
  width: 100%;
  aspect-ratio: 16 / 7.8;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 20px;
  box-shadow: 0 22px 60px rgba(0, 0, 0, .3);
}

.steps {
  background:
    linear-gradient(rgba(245, 253, 255, .88), rgba(245, 253, 255, .9)),
    url("assets/blueprint.svg") center/cover;
}

.steps ol {
  counter-reset: s;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: .9rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  min-height: 104px;
  border: 1px solid rgba(103, 232, 249, .13);
  border-radius: 18px;
  background: linear-gradient(180deg, var(--navy), var(--ink));
  padding: 1rem;
  color: #fff;
  font-weight: 850;
  box-shadow: 0 16px 36px rgba(15, 23, 42, .16);
}

.steps li:before {
  counter-increment: s;
  content: "0" counter(s);
  display: block;
  margin-bottom: 1.1rem;
  color: var(--cyan);
}

.reviews {
  grid-template-columns: repeat(2, 1fr);
}

.references,
.faq {
  background: var(--bg);
}

blockquote {
  margin: 0;
}

cite {
  display: block;
  margin-top: 1rem;
  color: var(--accent);
  font-style: normal;
  font-weight: 850;
}

.faq-list {
  display: grid;
  max-width: 980px;
  gap: .75rem;
}

.faq summary {
  cursor: pointer;
  font-weight: 850;
}

.faq details[open] {
  border-color: rgba(8, 145, 178, .26);
}

.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.map {
  display: grid;
  min-height: 140px;
  margin-top: 1rem;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 20px;
  background:
    linear-gradient(rgba(255, 255, 255, .07), rgba(255, 255, 255, .07)),
    url("assets/blueprint.svg") center/cover;
  color: #fff;
  font-weight: 850;
}

.form {
  display: grid;
  gap: .9rem;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 24px;
  background: rgba(245, 253, 255, .97);
  padding: 1.15rem;
  color: var(--ink);
  box-shadow: 0 24px 70px rgba(0, 0, 0, .28);
}

.form label {
  font-weight: 850;
}

.form input,
.form textarea {
  width: 100%;
  margin-top: .38rem;
  border: 1px solid rgba(15, 23, 42, .18);
  border-radius: 14px;
  background: #fff;
  padding: .75rem;
  font: inherit;
}

.form input:focus,
.form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(8, 145, 178, .13);
}

.form-status {
  min-height: 1.4rem;
  margin: 0;
  color: var(--accent);
  font-weight: 850;
}

footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid var(--line-dark);
  background:
    linear-gradient(90deg, rgba(15, 23, 42, .98), rgba(17, 28, 51, .96)),
    url("assets/tech-grid.svg") center/cover;
  padding-top: 1.35rem;
  padding-bottom: 1.35rem;
  color: var(--muted-on-dark);
}

footer a {
  color: var(--cyan);
}

footer img {
  width: 150px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 16px;
  background: rgba(245, 253, 255, .96);
  padding: .45rem .7rem;
}

@media (max-width: 1100px) {
  .before-after,
  .benefits {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 900px) {
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    flex-direction: column;
    border-bottom: 1px solid var(--line-dark);
    background: rgba(15, 23, 42, .98);
    padding: 1rem var(--page-pad);
    box-shadow: var(--shadow);
  }

  .nav.is-open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .header-call {
    display: none;
  }

  .hero,
  .contact,
  .showcase {
    grid-template-columns: 1fr;
  }

  .cards,
  .reviews,
  .benefits,
  .before-after,
  .steps ol {
    grid-template-columns: 1fr 1fr;
  }

  .hero-media:before {
    display: none;
  }
}

@media (max-width: 560px) {
  .site-header {
    min-height: 70px;
  }

  .brand {
    padding: .35rem .55rem;
  }

  .brand img {
    width: 155px;
  }

  .cards,
  .reviews,
  .benefits,
  .before-after,
  .steps ol {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2.35rem;
  }

  .section {
    padding-top: 2.6rem;
    padding-bottom: 2.6rem;
  }

  footer {
    display: block;
  }
}