:root {
  --font-impact: 'Oswald', -apple-system, sans-serif;
  --font-body: 'Montserrat', -apple-system, sans-serif;
  
  --bg-dark: #0d0e10;
  --bg-card: #15171c;
  --bg-card-hover: #1c1f26;
  
  --accent-red: #E53935;
  --accent-red-hover: #C62828;
  --accent-red-glow: rgba(229, 57, 53, 0.3);
  --accent-red-subtle: rgba(229, 57, 53, 0.12);
  
  --text-white: #ffffff;
  --text-gray: #9ba1b0;
  
  --border-color: #242832;
  --radius: 8px;
  --transition: all 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-dark);
  color: var(--text-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}

/* --- ANIMACE (Bezpečné záložní zobrazení pro mobily) --- */
.scroll-reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.js-enabled .scroll-reveal {
  opacity: 0;
  transform: translateY(35px);
}

.js-enabled .scroll-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in {
  animation: fadeIn 1s ease forwards;
}

.slide-in-right {
  animation: slideRight 1s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

/* --- HLAVIČKA A LOGO --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(13, 14, 16, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}

.brand-logo-link {
  display: flex;
  align-items: center;
}

.header-logo {
  height: 44px;
  width: auto;
  max-width: 220px;
  display: block;
  object-fit: contain;
  /* Automatický převod případného černého loga do světlé verze pro tmavou hlavičku */
  transition: var(--transition);
}

.brand-logo-link:hover .header-logo {
  opacity: 0.85;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-gray);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--accent-red);
}

.nav-divider {
  width: 1px;
  height: 20px;
  background-color: var(--border-color);
}

.nav-external {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-white);
  letter-spacing: 0.06em;
  transition: var(--transition);
}

.nav-ext-red {
  color: var(--accent-red);
}

.nav-ext-red:hover {
  color: #ff6b6b;
}

.nav-ext-icon {
  height: 20px;
  width: auto;
  max-width: 24px;
  display: block;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.ext-arrow {
  display: inline-block;
  color: var(--accent-red);
  transition: transform 0.3s ease;
}

.nav-external:hover .nav-ext-icon {
  transform: scale(1.1);
}

.nav-external:hover .ext-arrow {
  transform: translate(2px, -2px);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--text-white);
}

/* --- HERO SEKCE --- */
.hero-split-section {
  padding: 80px 0;
  background: radial-gradient(circle at 80% 20%, #1f1b24 0%, var(--bg-dark) 70%);
  border-bottom: 1px solid var(--border-color);
}

.hero-container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 50px;
  align-items: center;
}

.hero-kicker {
  display: inline-block;
  font-family: var(--font-impact);
  font-size: 0.95rem;
  letter-spacing: 0.15em;
  color: var(--accent-red);
  margin-bottom: 12px;
}

.hero-title-impact {
  font-family: var(--font-impact);
  font-size: 3.4rem;
  line-height: 1.05;
  letter-spacing: 0.02em;
  color: var(--text-white);
  margin-bottom: 20px;
  text-transform: uppercase;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-gray);
  margin-bottom: 32px;
  line-height: 1.6;
}

.hero-btns {
  display: flex;
  gap: 16px;
}

.btn-hero-primary {
  padding: 14px 28px;
  background-color: var(--accent-red);
  color: #ffffff;
  font-family: var(--font-impact);
  font-size: 1.15rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: var(--transition);
  box-shadow: 0 4px 20px var(--accent-red-glow);
}

.btn-hero-primary:hover {
  background-color: var(--accent-red-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(229, 57, 53, 0.45);
}

.btn-hero-secondary {
  padding: 14px 28px;
  border: 1px solid var(--border-color);
  color: var(--text-white);
  font-family: var(--font-impact);
  font-size: 1.15rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: var(--transition);
}

.btn-hero-secondary:hover {
  border-color: var(--accent-red);
  color: var(--accent-red);
}

/* SLIDER */
.hero-img-frame {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
  height: 380px;
  background-color: var(--bg-card);
}

.hero-slider-track {
  position: relative;
  width: 100%;
  height: 100%;
}

.slider-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0;
  transition: opacity 1s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1;
}

.slider-img.active {
  opacity: 1;
  z-index: 2;
}

.hero-img-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  z-index: 10;
  background-color: rgba(13, 14, 16, 0.92);
  backdrop-filter: blur(8px);
  border: 1px solid var(--accent-red);
  padding: 12px 20px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 12px;
}

.badge-num {
  font-family: var(--font-impact);
  font-size: 1.8rem;
  color: var(--accent-red);
}

.badge-txt {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-white);
  text-transform: uppercase;
}

/* --- TITULKY SEKCÍ --- */
.section-title-wrap {
  margin-bottom: 44px;
}

.section-sub {
  display: block;
  font-family: var(--font-impact);
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  color: var(--accent-red);
  margin-bottom: 6px;
}

.section-impact-title {
  font-family: var(--font-impact);
  font-size: 2.6rem;
  letter-spacing: 0.04em;
  color: var(--text-white);
  text-transform: uppercase;
}

.text-center {
  text-align: center;
}

/* --- SLUŽBY --- */
.services-section {
  padding: 90px 0;
}

.services-grid-modern {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}

.service-block {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
}

.service-block:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--accent-red);
  transform: translateY(-4px);
}

.service-block-icon {
  color: var(--accent-red);
  background-color: var(--accent-red-subtle);
  border: 1px solid rgba(229, 57, 53, 0.2);
  width: 52px;
  height: 52px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.service-block h3 {
  font-family: var(--font-impact);
  font-size: 1.4rem;
  letter-spacing: 0.03em;
  margin-bottom: 10px;
  color: var(--text-white);
}

.service-block p {
  font-size: 0.92rem;
  color: var(--text-gray);
  margin-bottom: 18px;
}

.service-bullet-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.service-bullet-list li {
  position: relative;
  padding-left: 16px;
  font-size: 0.85rem;
  color: var(--text-gray);
}

.service-bullet-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent-red);
  font-weight: bold;
}

/* --- JAK TO FUNGUJE --- */
.process-section {
  padding: 90px 0;
  background-color: #08090a;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.process-timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.process-step {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 24px 20px;
  border-radius: var(--radius);
  position: relative;
  transition: var(--transition);
}

.process-step:hover {
  border-color: var(--accent-red);
}

.step-num {
  font-family: var(--font-impact);
  font-size: 2.2rem;
  color: var(--accent-red);
  margin-bottom: 12px;
  line-height: 1;
}

.step-content h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-white);
}

.step-content p {
  font-size: 0.82rem;
  color: var(--text-gray);
  line-height: 1.5;
}

/* --- REALIZACE --- */
.portfolio-section {
  padding: 90px 0;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 32px;
}

.portfolio-card {
  background-color: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.portfolio-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-red);
}

.portfolio-gallery {
  display: flex;
  flex-direction: column;
  gap: 3px;
  background-color: var(--border-color);
}

.gallery-main {
  width: 100%;
  height: 210px;
  overflow: hidden;
  background-color: var(--bg-card);
}

.gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.gallery-thumbs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3px;
  height: 125px;
  background-color: var(--bg-card);
}

.gallery-thumbs img {
  width: 100%;
  height: 125px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.portfolio-card:hover img {
  transform: scale(1.04);
}

.portfolio-info {
  padding: 24px;
}

.portfolio-info h3 {
  font-family: var(--font-impact);
  font-size: 1.3rem;
  letter-spacing: 0.02em;
  margin-bottom: 12px;
  color: var(--text-white);
}

.portfolio-detail-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.portfolio-detail-list li {
  position: relative;
  padding-left: 14px;
  font-size: 0.82rem;
  color: var(--text-gray);
}

.portfolio-detail-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 5px;
  height: 5px;
  background-color: var(--accent-red);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--accent-red);
}

/* --- KONTAKT --- */
.contact-section {
  padding: 90px 0;
  background-color: #08090a;
  border-top: 1px solid var(--border-color);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}

.info-list {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.info-item {
  display: flex;
  font-size: 0.95rem;
}

.info-label {
  font-weight: 700;
  width: 90px;
  color: var(--text-white);
}

.info-val {
  color: var(--text-gray);
}

.info-val a {
  color: var(--accent-red);
  font-weight: 700;
}

.contact-form {
  background-color: var(--bg-card);
  padding: 36px;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-white);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background-color: var(--bg-dark);
  color: var(--text-white);
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-red);
  box-shadow: 0 0 0 3px var(--accent-red-glow);
}

.form-gdpr {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.form-gdpr input {
  width: auto;
  margin-top: 3px;
}

.form-gdpr label {
  font-size: 0.78rem;
  color: var(--text-gray);
}

.btn-submit {
  width: 100%;
  padding: 14px;
  background-color: var(--accent-red);
  color: #ffffff;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-impact);
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 16px var(--accent-red-glow);
}

.btn-submit:hover {
  background-color: var(--accent-red-hover);
  box-shadow: 0 6px 20px rgba(229, 57, 53, 0.45);
}

/* --- PATIČKA --- */
.site-footer {
  border-top: 1px solid var(--border-color);
  padding: 30px 0;
  background-color: #050506;
  font-size: 0.88rem;
  color: var(--text-gray);
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-back:hover {
  color: var(--accent-red);
}

/* --- RESPONZIVITA A MOBILNÍ MENU --- */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
  }
  
  .process-timeline {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .header-container {
    padding: 0 20px;
  }

  .hero-title-impact {
    font-size: 2.1rem; /* Mírně zmenšeno pro perfektní zobrazení na mobilu */
  }

  .hero-img-frame {
    height: 260px;
  }

  .process-timeline {
    grid-template-columns: 1fr;
  }

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

  .mobile-toggle {
    display: flex;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 84px;
    left: 0;
    right: 0;
    background-color: rgba(21, 23, 28, 0.98);
    backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 32px;
    gap: 20px;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 20px 30px rgba(0,0,0,0.5);
  }

  .main-nav.active {
    display: flex;
  }

  .nav-divider {
    width: 100%;
    height: 1px;
    margin: 4px 0;
  }

  .nav-external {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    font-size: 1rem;
  }

  .nav-ext-icon {
    height: 24px;
    max-width: 28px;
  }
}

/* --- COOKIE LIŠTA --- */
.cookie-banner {
  position: fixed;
  bottom: -150px;
  left: 0;
  right: 0;
  z-index: 2000;
  background-color: rgba(21, 23, 28, 0.96);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-color);
  box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.5);
  padding: 16px 0;
  transition: bottom 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.cookie-banner.visible {
  bottom: 0;
}

.cookie-container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.cookie-text {
  font-size: 0.88rem;
  color: var(--text-gray);
  line-height: 1.5;
}

.cookie-btns {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
}

.btn-cookie-accept {
  padding: 10px 22px;
  background-color: var(--accent-red);
  color: #ffffff;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-impact);
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 12px var(--accent-red-glow);
}

.btn-cookie-accept:hover {
  background-color: var(--accent-red-hover);
}

.footer-cookie-btn {
  background: none;
  border: none;
  color: var(--text-gray);
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
  margin-left: 4px;
}

.footer-cookie-btn:hover {
  color: var(--accent-red);
}

@media (max-width: 768px) {
  .cookie-container {
    flex-direction: column;
    align-items: flex-start;
    padding: 0 20px;
  }
  
  .cookie-btns {
    width: 100%;
  }
  
  .btn-cookie-accept {
    width: 100%;
    text-align: center;
  }
}