/* =============================================
   DKS Servis – Hlavný stylesheet
   ============================================= */

/* Reset & základné nastavenia */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary:   #0d6efd;
  --primary-dk:#0a58ca;
  --dark:      #13243a;
  --dark2:     #1d3350;
  --grey:      #f5f5f5;
  --text:      #333;
  --text-light:#666;
  --white:     #fff;
  --shadow:    0 4px 20px rgba(0,0,0,.15);
  --radius:    8px;
  --transition:.3s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
}

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

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

/* ── Navigácia ─────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(26,26,26,.95);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 64px;
  box-shadow: 0 2px 12px rgba(0,0,0,.4);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: .5px;
}

.nav-logo span {
  color: var(--primary);
}

.nav-logo svg {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-links a {
  color: rgba(255,255,255,.85);
  font-size: .95rem;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 2px;
  background: var(--primary);
  transition: width var(--transition);
}

.nav-links a:hover {
  color: var(--white);
}

.nav-links a:hover::after {
  width: 100%;
}

/* hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 25px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── Hero ──────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #1a1a1a 0%, #2c2c2c 50%, #1a0a0a 100%);
  padding: 7rem 1.5rem 4rem;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 60%, rgba(192,57,43,.18) 0%, transparent 70%);
  pointer-events: none;
}

/* animated stripes */
.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 60px,
    rgba(255,255,255,.015) 60px,
    rgba(255,255,255,.015) 62px
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero-badge {
  display: inline-block;
  background: var(--primary);
  color: var(--white);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: .35rem 1rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 1.2rem;
  letter-spacing: -1px;
}

.hero h1 .accent {
  color: var(--primary);
}

.hero p {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: rgba(255,255,255,.7);
  max-width: 560px;
  margin: 0 auto 2.5rem;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem 2.2rem;
  border-radius: 100px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}

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

.btn-primary:hover {
  background: var(--primary-dk);
  border-color: var(--primary-dk);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(192,57,43,.4);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.4);
}

.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,.08);
  transform: translateY(-2px);
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .4rem;
  color: rgba(255,255,255,.45);
  font-size: .75rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  animation: bounce 2s infinite;
}

.hero-scroll svg {
  width: 20px; height: 20px;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ── Spoločné sekcie ───────────────────────── */
section {
  padding: 5rem 1.5rem;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-label {
  display: inline-block;
  color: var(--primary);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  margin-bottom: .6rem;
}

.section-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -.5px;
}

.section-header p {
  margin-top: .8rem;
  color: var(--text-light);
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

/* divider */
.section-divider {
  width: 50px; height: 4px;
  background: var(--primary);
  border-radius: 2px;
  margin: .8rem auto 0;
}

/* ── O nás ─────────────────────────────────── */
#o-nas {
  background: var(--grey);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
}

.about-visual {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #1a1a1a, #2c2c2c);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-visual svg {
  width: 140px;
  height: 140px;
  opacity: .6;
}

.about-badge {
  position: absolute;
  bottom: 1.5rem;
  right: 1.5rem;
  background: var(--primary);
  color: var(--white);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  text-align: center;
  box-shadow: 0 4px 16px rgba(192,57,43,.4);
}

.about-badge strong {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
}

.about-badge span {
  font-size: .75rem;
  opacity: .9;
}

.about-text h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--dark);
}

.about-text p {
  color: var(--text-light);
  margin-bottom: 1rem;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.stat {
  text-align: center;
  background: var(--white);
  border-radius: var(--radius);
  padding: 1.2rem .8rem;
  box-shadow: 0 2px 8px rgba(0,0,0,.07);
}

.stat strong {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.stat span {
  font-size: .78rem;
  color: var(--text-light);
  margin-top: .3rem;
  display: block;
}

/* ── Služby ────────────────────────────────── */
#sluzby {
  background: var(--white);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.service-card {
  background: var(--grey);
  border-radius: var(--radius);
  padding: 2rem;
  transition: var(--transition);
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  background: var(--primary);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform var(--transition);
}

.service-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.service-card:hover::before {
  transform: scaleY(1);
}

.service-icon {
  width: 54px; height: 54px;
  background: rgba(192,57,43,.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.2rem;
}

.service-icon svg {
  width: 28px; height: 28px;
  color: var(--primary);
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: .5rem;
  color: var(--dark);
}

.service-card p {
  font-size: .9rem;
  color: var(--text-light);
}

/* ── Galéria ───────────────────────────────── */
#galeria {
  background: var(--dark);
}

#galeria .section-header h2 {
  color: var(--white);
}

#galeria .section-label {
  color: #e74c3c;
}

#galeria .section-header p {
  color: rgba(255,255,255,.55);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  background: #2a2a2a;
  aspect-ratio: 4/3;
}

.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.gallery-item:hover img {
  transform: scale(1.07);
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: rgba(192,57,43,.0);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.gallery-overlay svg {
  width: 44px; height: 44px;
  color: var(--white);
  filter: drop-shadow(0 2px 8px rgba(0,0,0,.5));
}

.gallery-item:hover .gallery-overlay {
  background: rgba(0,0,0,.5);
  opacity: 1;
}

/* Placeholder pre galériu bez fotiek */
.gallery-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .8rem;
  color: rgba(255,255,255,.4);
  height: 100%;
  min-height: 210px;
}

.gallery-placeholder svg {
  width: 48px; height: 48px;
  opacity: .5;
}

.gallery-placeholder span {
  font-size: .85rem;
}

/* ── Lightbox ──────────────────────────────── */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0,0,0,.93);
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.lightbox.active {
  display: flex;
}

.lightbox-img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius);
  box-shadow: 0 8px 40px rgba(0,0,0,.6);
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: 1.2rem; right: 1.5rem;
  background: none;
  border: none;
  color: var(--white);
  cursor: pointer;
  padding: .4rem;
  line-height: 0;
  transition: var(--transition);
}

.lightbox-close:hover {
  color: var(--primary);
  transform: scale(1.1);
}

.lightbox-close svg {
  width: 32px; height: 32px;
}

.lightbox-prev,
.lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 50%;
  color: var(--white);
  width: 48px; height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.lightbox-prev { left: 1.5rem; }
.lightbox-next { right: 1.5rem; }

.lightbox-prev:hover,
.lightbox-next:hover {
  background: var(--primary);
  border-color: var(--primary);
}

.lightbox-prev svg,
.lightbox-next svg {
  width: 22px; height: 22px;
}

/* ── Recenzie ──────────────────────────────── */
#recenzie {
  background: var(--grey);
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.review-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: 0 2px 12px rgba(0,0,0,.07);
  position: relative;
  transition: var(--transition);
}

.review-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.review-quote {
  position: absolute;
  top: 1.2rem; right: 1.5rem;
  font-size: 4rem;
  line-height: 1;
  color: rgba(192,57,43,.12);
  font-family: Georgia, serif;
  font-weight: 700;
  pointer-events: none;
}

.review-stars {
  display: flex;
  gap: 3px;
  margin-bottom: 1rem;
}

.review-stars svg {
  width: 18px; height: 18px;
  fill: #f39c12;
  color: #f39c12;
}

.review-card p {
  color: var(--text-light);
  font-size: .95rem;
  font-style: italic;
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.reviewer {
  display: flex;
  align-items: center;
  gap: .8rem;
}

.reviewer-avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dk));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
}

.reviewer-name {
  font-weight: 600;
  font-size: .95rem;
  color: var(--dark);
}

.reviewer-date {
  font-size: .78rem;
  color: var(--text-light);
}

/* ── Kontakt ───────────────────────────────── */
#kontakt {
  background: var(--dark);
  color: var(--white);
}

#kontakt .section-header h2 {
  color: var(--white);
}

#kontakt .section-label {
  color: #e74c3c;
}

#kontakt .section-header p {
  color: rgba(255,255,255,.6);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  max-width: 1000px;
  margin: 0 auto;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-icon {
  width: 48px; height: 48px;
  background: rgba(192,57,43,.2);
  border: 1px solid rgba(192,57,43,.4);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon svg {
  width: 22px; height: 22px;
  color: var(--primary);
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.contact-item-text {
  padding-top: .1rem;
}

.contact-item-text strong {
  display: block;
  font-size: .8rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,.45);
  margin-bottom: .25rem;
}

.contact-item-text a,
.contact-item-text span {
  font-size: 1.05rem;
  color: rgba(255,255,255,.9);
  transition: color var(--transition);
}

.contact-item-text a:hover {
  color: var(--primary);
}

.social-links {
  display: flex;
  gap: .8rem;
  margin-top: .5rem;
}

.social-link {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.8);
  transition: var(--transition);
}

.social-link:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

.social-link svg {
  width: 20px; height: 20px;
}

.map-embed {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,.4);
}

.map-embed iframe {
  width: 100%;
  height: 100%;
  min-height: 340px;
  border: 0;
  filter: grayscale(30%);
}

/* ── Fade-in animácia ──────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .5s ease, transform .5s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: none;
}

/* ── Footer ────────────────────────────────── */
footer {
  background: #111;
  color: rgba(255,255,255,.45);
  text-align: center;
  padding: 1.8rem 1rem;
  font-size: .85rem;
}

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

/* ── Responsive ────────────────────────────── */
@media (max-width: 900px) {
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .about-visual {
    max-height: 280px;
  }
}

@media (max-width: 700px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: rgba(26,26,26,.98);
    flex-direction: column;
    padding: 1.5rem 2rem;
    gap: 1rem;
    border-top: 1px solid rgba(255,255,255,.08);
  }

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

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

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

  .nav-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .about-stats {
    grid-template-columns: 1fr 1fr;
  }

  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  }

  .lightbox-prev { left: .5rem; }
  .lightbox-next { right: .5rem; }
}

@media (max-width: 480px) {
  section {
    padding: 3.5rem 1rem;
  }

  .about-stats {
    grid-template-columns: 1fr;
  }
}