:root {
  --red: #e10600;
  --red-bright: #ff2a1a;
  --red-dark: #7a0000;
  --red-light: #fff0f0;
  --white: #ffffff;
  --black: #111111;
  --dark: #181818;
  --dark2: #232323;
  --gray: #7a7a7a;
  --light: #f8f9fa;
  --border: #e9ecef;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 18px 64px rgba(0, 0, 0, 0.18);
  --radius: 16px;
  --radius-lg: 28px;
  --trans: all 0.32s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: "Inter", sans-serif;
  color: var(--white);
  background: linear-gradient(135deg, var(--black) 0%, var(--dark) 100%);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100dvh;
  min-height: 100svh;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
}

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

svg,
video,
canvas,
iframe {
  max-width: 100%;
}

section[id] {
  scroll-margin-top: 90px;
}

input,
textarea,
select {
  min-width: 0;
}

button {
  border: none;
  background: none;
  cursor: pointer;
}

input,
select,
textarea,
button {
  font: inherit;
}

ul {
  list-style: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: min(1200px, 94vw);
  margin: 0 auto;
  padding-left: 12px;
  padding-right: 12px;
}

.section {
  padding: 110px 0 90px;
}

h1,
h2,
h3,
h4 {
  line-height: 1.12;
  letter-spacing: 0.01em;
  font-weight: 900;
}

h1 {
  font-size: clamp(2.6rem, 5.8vw, 4.4rem);
  background: linear-gradient(92deg, var(--red-bright), var(--white) 55%, var(--red-dark));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 10px 40px rgba(0, 0, 0, 0.28);
}

h2 {
  font-size: clamp(2rem, 4.2vw, 3.2rem);
  color: var(--red-bright);
}

h3 {
  font-size: 1.25rem;
  color: var(--white);
}

.red {
  color: var(--red-bright);
}

.white-hl {
  color: var(--white);
}

.highlight {
  color: var(--red-bright);
  position: relative;
  text-shadow: 0 0 10px rgba(255, 42, 26, 0.55);
}

.highlight::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -6px;
  height: 6px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--red-bright), var(--white), var(--red-dark));
  opacity: 0.78;
  filter: blur(1.8px);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--red-light);
  color: var(--red);
  font-size: 0.84rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 7px 15px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 58px;
}

.section-header p {
  color: var(--gray);
  font-size: 1.03rem;
  margin-top: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 0.98rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  white-space: nowrap;
  transition: var(--trans);
}

.btn-primary {
  background: linear-gradient(92deg, var(--red-bright), var(--red-dark));
  color: var(--white);
  border: 2px solid transparent;
  box-shadow: 0 10px 28px rgba(225, 6, 0, 0.28);
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  border-color: var(--white);
  box-shadow: 0 16px 34px rgba(225, 6, 0, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--red-bright);
  border: 2px solid var(--red-bright);
}

.btn-outline:hover {
  background: var(--red-bright);
  color: var(--white);
  border-color: var(--white);
}

.btn-nav {
  background: var(--white);
  color: var(--red-bright);
  border: 2px solid var(--red-bright);
  box-shadow: 0 8px 22px rgba(225, 6, 0, 0.16);
}

.btn-nav:hover {
  background: var(--red-bright);
  color: var(--white);
  border-color: var(--white);
}

.btn-white {
  background: var(--white);
  color: var(--red);
}

.btn-white:hover {
  transform: translateY(-2px);
}

.btn-outline-white {
  border: 2px solid rgba(255, 255, 255, 0.75);
  color: var(--white);
}

.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.12);
}

.nav-links a[href$="/vyrobci"],
.nav-links a[href$="/reference"],
.footer-col a[href$="/vyrobci"],
.footer-col a[href$="/reference"],
a[href$="/vyrobci"],
a[href$="/reference"] {
  display: none !important;
}

.section.references,
.section.manufacturers,
.service-calc,
.latest-references-actions,
.o-nas-text a[href="/sluzby#serviceCalc"] {
  display: none !important;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: var(--trans);
  background: rgba(17, 17, 17, 0.88);
  backdrop-filter: blur(14px);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}

.navbar.scrolled {
  background: rgba(17, 17, 17, 0.88);
  backdrop-filter: blur(14px);
  padding: 12px 0;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-mark {
  width: 130px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.logo-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(255, 42, 26, 0.4));
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.08;
}

.logo-main {
  font-size: 1.24rem;
  font-weight: 900;
  color: var(--white);
}

.logo-sub {
  font-size: 0.69rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.62);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}

.nav-links a {
  padding: 9px 15px;
  border-radius: 10px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.9rem;
  font-weight: 700;
  transition: var(--trans);
}

.nav-links a:hover,
.nav-links a.active {
  background: linear-gradient(90deg, var(--red-bright), var(--red-dark));
  color: var(--white);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  margin-left: auto;
  padding: 4px;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--trans);
}

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}


.footer {
  background: #111111;
  color: rgba(255, 255, 255, 0.7);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 44px;
  padding: 70px 0 46px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo-white .logo-mark {
  width: 60px;
  height: 60px;
}

.footer-brand .logo-white .logo-text {
  display: flex;
}

.footer-brand > p {
  margin-top: 16px;
  max-width: 280px;
  font-size: 0.88rem;
}

.social-links {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.social-links a {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.08);
  transition: var(--trans);
}

.social-links a:hover {
  background: var(--red-bright);
  color: var(--white);
}

.footer-col h4 {
  color: var(--white);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 9px;
}

.footer-col ul a {
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.88rem;
  transition: var(--trans);
}

.footer-col ul a:hover {
  color: var(--white);
  padding-left: 4px;
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
}

.footer-contact li i {
  color: var(--red-bright);
  margin-top: 2px;
}

.footer-contact a:hover {
  color: var(--white);
}

.footer-bottom {
  padding: 22px 0;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.38);
}

.footer-bottom i {
  color: var(--red-bright);
}

.back-top {
  position: fixed;
  right: 30px;
  bottom: 30px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  color: var(--white);
  background: var(--red-bright);
  box-shadow: 0 8px 24px rgba(225, 6, 0, 0.35);
  opacity: 0;
  pointer-events: none;
  transition: var(--trans);
  z-index: 999;
}

.back-top.visible {
  opacity: 1;
  pointer-events: auto;
}

.back-top:hover {
  transform: translateY(-2px);
}

.mobile-sticky-cta {
  display: none;
  position: fixed;
  left: max(12px, env(safe-area-inset-left));
  right: max(12px, env(safe-area-inset-right));
  bottom: max(12px, env(safe-area-inset-bottom));
  z-index: 1100;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
}

.mobile-sticky-cta a {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 14px;
  font-size: 0.9rem;
  font-weight: 800;
}

.mobile-cta-call {
  background: #121212;
  color: #ffffff;
}

.mobile-cta-form {
  background: linear-gradient(135deg, var(--red-bright), var(--red-dark));
  color: #ffffff;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(255, 42, 26, 0.55);
  outline-offset: 2px;
}


[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal="left"] {
  transform: translateX(-30px);
}

[data-reveal="right"] {
  transform: translateX(30px);
}

[data-reveal="left"].revealed,
[data-reveal="right"].revealed {
  transform: translateX(0);
}


@media (max-width: 1024px) {
  html {
    font-size: 15.5px;
  }

  .container {
    width: min(1200px, 96vw);
  }

  .nav-inner {
    gap: 14px;
  }

  .logo-mark {
    width: 116px;
    height: 50px;
  }

  .nav-links {
    gap: 4px;
  }

  .nav-links a {
    padding: 9px 12px;
    font-size: 0.84rem;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }

  .section {
    padding: 72px 0;
  }

  h1 {
    font-size: 2.2rem;
  }

  h2 {
    font-size: 1.8rem;
  }

  .hamburger {
    display: flex;
  }

  .btn-nav {
    display: none;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80vw;
    max-width: 320px;
    height: 100vh;
    background: var(--dark);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 8px;
    padding: 40px 30px;
    transition: var(--trans);
    z-index: 999;
  }

  .nav-links.open {
    right: 0;
    box-shadow: -20px 0 60px rgba(0, 0, 0, 0.4);
  }

  .nav-links a {
    width: 100%;
    font-size: 1.05rem;
    padding: 11px 0;
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom-inner {
    justify-content: center;
    text-align: center;
  }

  .back-top {
    right: max(16px, env(safe-area-inset-right));
    bottom: calc(max(78px, env(safe-area-inset-bottom)) + 4px);
  }

  .mobile-sticky-cta {
    display: flex;
  }

  .mobile-sticky-cta a {
    min-height: 52px;
  }

  .footer {
    padding-bottom: 64px;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14.5px;
  }

  .container {
    width: min(1200px, 97vw);
    padding-left: 10px;
    padding-right: 10px;
  }

  .section {
    padding: 58px 0;
  }

  .btn {
    width: 100%;
    min-height: 48px;
    padding: 12px 18px;
  }

  .mobile-sticky-cta {
    left: max(10px, env(safe-area-inset-left));
    right: max(10px, env(safe-area-inset-right));
    bottom: max(10px, env(safe-area-inset-bottom));
  }
}

@media (max-width: 360px) {
  html {
    font-size: 14px;
  }

  .btn {
    border-radius: 14px;
  }

  .mobile-sticky-cta a {
    font-size: 0.82rem;
    gap: 6px;
  }
}

@media (max-height: 560px) and (orientation: landscape) {
  .nav-links {
    padding: 20px;
    justify-content: flex-start;
    overflow-y: auto;
  }

  .nav-links a {
    padding: 8px 0;
  }
}

@media (hover: none) {
  .btn-primary:hover,
  .btn-outline:hover,
  .btn-nav:hover,
  .btn-white:hover,
  .service-card:hover,
  .sort-card:hover,
  .catalog-card:hover,
  .trust-card:hover,
  .catalog-link:hover,
  .sort-link:hover,
  .back-top:hover {
    transform: none;
    box-shadow: none;
    filter: none;
    gap: inherit;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}