/* ==========================================================
   SEO AGENTUR CHEMNITZ – PREMIUM LANDING PAGE
========================================================== */

main {
  background: #F2F4F7;
  color: #121417;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* ---------------- GLOBAL ---------------- */

strong {
  color: #ffcc00 !important;
  font-weight: 700;
}

main h1,
main h2,
main h3,
main p,
main span,
main li {
  text-align: center;
}

.section-label,
.hero-badge {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(0,68,204,0.10);
  color: #0044cc;
  font-weight: 700;
  margin-bottom: 14px;
}

/* ---------------- HERO ---------------- */

.seo-hero {
  width: 90%;
  margin: 0 auto 24px;
  padding: 38px 0;
  background: linear-gradient(135deg, #f4f6f9 0%, #e7ebf0 100%);
  border-radius: 0 0 22px 22px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.06);
}

.seo-hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 34px;
}

.seo-hero h1 {
  max-width: 720px;
  margin: 0 auto 16px;
  font-size: 2.7rem;
  line-height: 1.2;
  color: #0044cc;
  font-weight: 800;
}

.seo-hero p {
  max-width: 680px;
  margin: 0 auto 22px;
  font-size: 1.15rem;
  line-height: 1.75;
  color: #444b52;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.seo-hero-image,
.seo-image-box {
  position: relative;
  overflow: visible;
  border-radius: 26px;
}

.seo-hero-image picture,
.seo-image-box picture {
  display: block;
  border-radius: 26px;
  overflow: hidden;
  position: relative;
  z-index: 2;
}

.seo-hero-image::before,
.seo-image-box::before {
  content: "";
  position: absolute;
  inset: -10px;
  border-radius: 32px;
  background: linear-gradient(135deg, rgba(255,204,0,0.55), rgba(0,94,184,0.20), transparent 65%);
  filter: blur(18px);
  opacity: 0.65;
  z-index: 0;
}

.seo-hero-image img,
.seo-image-box img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 26px;

  border: 1px solid rgba(255,204,0,0.35);

  box-shadow:
    0 30px 80px rgba(0,0,0,0.28),
    0 10px 24px rgba(0,0,0,0.14);
}

.seo-hero-image:hover img,
.seo-image-box:hover img {
  transform: translateY(-6px) scale(1.025);
}

.seo-hero-image img,
.seo-image-box img {
  transition: transform .35s ease, box-shadow .35s ease;
}

/* Mobile optimalizace */
@media (max-width: 768px) {

  .seo-hero-image,
  .seo-image-box,
  .seo-hero-image img,
  .seo-image-box img {
    border-radius: 18px;
  }

}

/* ---------------- INTRO ---------------- */

.seo-intro,
.seo-services,
.seo-benefits,
.seo-cta {
  padding: 36px 0;
}

.seo-intro-grid,
.seo-benefits-grid {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  align-items: end;
  gap: 30px;
}

/* pouze pravý obrázek v benefits sekci */
.seo-benefits-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.seo-benefits-visual picture {
  width: 100%;
  display: block;
}

.seo-benefits-visual img {
  width: 100%;
  height: 460px;
  display: block;
  object-fit: cover;
  object-position: center 66%;
  border-radius: 24px;
}

.seo-intro h2,
.seo-services h2,
.seo-benefits h2,
.seo-cta h2 {
  color: #0044cc;
  margin: 0 0 14px;
  font-size: 2rem;
}

.seo-intro p,
.seo-benefits p,
.seo-cta p {
  max-width: 780px;
  margin: 0 auto 14px;
  color: #42484E;
  line-height: 1.75;
}

/* =========================
   SEO CONTENT CARDS
========================= */

.seo-content-section {
  padding: 80px 0;
  text-align: center;
}

.seo-content-section .section-label {
  display: block;
  width: fit-content;
  margin: 0 0 18px;
}

.seo-content-section h2 {
  max-width: 980px;
  margin: 0 auto 18px;
  color: #0044cc;
  font-size: 2rem;
  font-weight: 800;
  text-shadow: 0 4px 18px rgba(0, 68, 204, 0.16);
}

.seo-content-intro {
  max-width: 760px;
  margin: 0 auto 42px;
  color: #42484E;
  line-height: 1.8;
  font-size: 1.05rem;
}

.seo-info-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.seo-info-card {
  background: #fff;
  padding: 34px 28px;
  border-radius: 24px;
  border: 1px solid rgba(0,0,0,0.06);
  box-shadow: 0 12px 32px rgba(0,0,0,0.06);
  transition: transform .2s ease, box-shadow .2s ease;
}

.seo-info-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 42px rgba(0,0,0,0.10);
}

.seo-info-card span {
  font-size: 2rem;
  display: block;
  margin-bottom: 14px;
}

.seo-info-card h3 {
  margin-bottom: 12px;
  color: #0044cc;
  font-weight: 800;
}

.seo-info-card p {
  color: #42484E;
  line-height: 1.7;
}

/* =========================
   DARK MODE – SEO CONTENT
========================= */

body.dark .seo-content-section .section-label {
  background: rgba(255,204,0,0.16);
  color: #ffcc00 !important;
}

body.dark .seo-content-section h2 {
  color: #ffcc00 !important;
  text-shadow: 0 0 14px rgba(255,204,0,0.28);
}

body.dark .seo-content-intro {
  color: #ddd !important;
}

body.dark .seo-info-card {
  background: linear-gradient(145deg, rgba(30,0,45,0.92), rgba(15,0,30,0.95));
  border: 1px solid rgba(255,255,255,0.10);
  border-left: 4px solid transparent;
  border-image: linear-gradient(180deg,#a832d6,#ffcc00) 1;
  box-shadow: 0 8px 25px rgba(0,0,0,0.50);
}

body.dark .seo-info-card h3 {
  color: #ffcc00 !important;
  text-shadow: 0 0 10px rgba(255,204,0,0.22);
}

body.dark .seo-info-card p,
body.dark .seo-info-card span {
  color: #ddd !important;
}

/* =========================
   RESPONSIVE
========================= */

@media (max-width: 900px) {
  .seo-info-cards {
    grid-template-columns: 1fr;
  }

  .seo-content-section .section-label {
    margin: 0 auto 18px;
  }
}

/* INTERNAL LINKS */

.seo-internal-links a {
  color: #0044cc;
  font-weight: 600;
  text-decoration: none;
  transition: color .25s ease;
}

.seo-internal-links a:hover {
  color: #ffcc00;
}

/* DARK MODE */

body.dark-mode .seo-internal-links a {
  color: #ffcc00;
}

body.dark-mode .seo-internal-links a:hover {
  color: #ffffff;
}
/* ---------------- SERVICES ---------------- */

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 22px;
}

.service-card {
  background: #fff;
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: 22px;
  padding: 22px;
  box-shadow: 0 12px 36px rgba(0,0,0,.07);
  transition: transform .18s ease, box-shadow .18s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,.10);
}

.service-icon {
  font-size: 2rem;
  margin-bottom: 10px;
}

.service-card h3 {
  color: #0044cc;
  margin: 0 0 10px;
}

.service-card p {
  color: #42484E;
  margin: 0;
  line-height: 1.7;
}

/* ---------------- BENEFITS ---------------- */

.benefits-list {
  max-width: 620px;
  margin: 18px auto 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.benefits-list li {
  background: #fff;
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: 16px;
  padding: 13px 16px;
  color: #42484E;
  font-weight: 600;
  box-shadow: 0 8px 22px rgba(0,0,0,.06);
}

.benefits-list li::before {
  content: "✓ ";
  color: #0044cc;
  font-weight: 800;
}

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

.seo-cta-box {
  background: #fff;
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: 24px;
  padding: 34px 22px;
  box-shadow: 0 12px 36px rgba(0,0,0,.07);
  text-align: center;
}

/* ---------------- BUTTON FALLBACKS ---------------- */

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
}

.btn-primary {
  background: #0044cc;
  color: #fff !important;
}

.btn-primary:hover {
  background: #003399;
}

.btn-secondary {
  background: #fff;
  color: #0044cc !important;
  border: 1px solid rgba(0,68,204,0.20);
}

.btn-secondary:hover {
  background: #eef3ff;
}

/* ---------------- RESPONSIVE ---------------- */

@media (max-width: 992px) {
  .seo-hero-grid,
  .seo-intro-grid,
  .seo-benefits-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

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

@media (max-width: 600px) {
  .seo-hero {
    width: 94%;
    padding: 30px 0;
  }

  .seo-hero h1 {
    font-size: 1.9rem;
  }

  .seo-hero p {
    font-size: 1.02rem;
  }

  .seo-intro,
  .seo-services,
  .seo-benefits,
  .seo-cta {
    padding: 28px 0;
  }
}

/* ---------------- DARK MODE ---------------- */

body.dark main {
  background: #1a001f;
  color: #f2f2f2;
}

body.dark p,
body.dark span,
body.dark li,
body.dark div {
  color: #ddd !important;
}

body.dark h1,
body.dark h2,
body.dark h3 {
  color: #ffcc00 !important;
  text-shadow: 0 0 10px rgba(255,204,0,0.25);
}

body.dark a {
  color: #ffcc00 !important;
}

body.dark .btn-primary {
  background: #ffcc00;
  color: #1a001f !important;
}

body.dark .btn-secondary {
  background: rgba(255,255,255,0.08);
  color: #ffcc00 !important;
  border: 1px solid rgba(255,204,0,0.35);
}

body.dark .seo-hero,
body.dark .service-card,
body.dark .benefits-list li,
body.dark .seo-cta-box {
  background: linear-gradient(145deg, rgba(30,0,45,0.92), rgba(15,0,30,0.95));
  border: 1px solid rgba(255,255,255,0.10);
  border-left: 4px solid transparent;
  border-image: linear-gradient(180deg,#a832d6,#ffcc00) 1;
  box-shadow: 0 8px 25px rgba(0,0,0,0.50);
}

body.dark .section-label,
body.dark .hero-badge {
  background: rgba(255,204,0,0.16);
  color: #ffcc00 !important;
}

body.dark .seo-hero-image img,
body.dark .seo-image-box img {
  border: 2px solid rgba(255,255,255,0.18);
  box-shadow:
    0 0 60px rgba(255,255,255,0.18),
    0 0 120px rgba(168,50,214,0.18);
}