/* ===== Základné štýly ===== */
body {
  margin: 0;
  font-family: "Inter", Arial, sans-serif;
  background: #f7f9fb;
  color: #1c1c1c;
}

/* ===== Header ===== */
.header {
  background: linear-gradient(135deg, #0a4a6c, #0e6a92);
  color: white;
  padding: 3rem 1.5rem;
}

.header-left {
  display: flex;
  flex-direction: row; 
  align-items: center;   
}


.logo {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  margin-right: 15px;
}

.header-left h1 {
  margin: 0;
}


.header-title {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  text-align: left;
  margin-bottom: 20px;
}



.header h1 {
  font-size: 2.4rem;
  margin-bottom: 0.5rem;
  font-weight: 700;
}
.footer {
  position: relative;
}

.footer-address {
  position: absolute;
  bottom: 10px;
  left: 20px;
  font-size: 14px;
  opacity: 0.9;
}

/* ===== Navigácia ===== */
.navbar {
  background: white;
  display: flex;
  justify-content: center;
  gap: 2rem;
  padding: 1rem;
  border-bottom: 1px solid #dcdcdc;
  position: sticky;
  top: 0;
  z-index: 10;
}

.navbar a {
  color: #0a4a6c;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.05rem;
  transition: 0.2s;
}

.navbar a:hover {
  color: #0e6a92;
  transform: translateY(-2px);
}
.hero-banner {
  width: 100%;
  background: #ffffff;        /* pekné pozadie okolo obrázka */
  padding: 20px 0;
}

.hero-banner img {
  max-width: 1000px;       /* ovláda veľkosť */
  width: 100%;
  height: 700px;
  display: block;
  margin: 0 auto;         /* vycentruje */
  border-radius: 15px;
}
.section-title {
  text-align: center;
  color: #113572;
}

.sponsors {
  text-align: center;
}

.sponsors-box {
  margin-top: 20px;
  padding: 20px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.08);
  display: inline-block;
}

.sponsors-box img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}
/* ===== Sekcie ===== */
.about-text {
  max-width: 900px;
  margin: 0 auto;
  font-size: 1.05rem;
  line-height: 1.8;
  color: #2c2c2c;
  text-align: center; /* rovnaký efekt ako <center>, ale správne */
}
.kongres-text {
  max-width: 900px;
  margin: 0 auto 24px auto;
  font-size: 1.05rem;
  line-height: 1.8;
  color: #2c2c2c;
  text-align: center;
}

.container {
  max-width: 1100px;
  margin: 2.5rem auto;
  padding: 2rem;
  background: white;
  border-radius: 14px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
}

.container h2 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  color: #0a4a6c;
}

.container p {
  line-height: 1.6;
  font-size: 1.05rem;
}
.kongres-info-wrapper {
  text-align: center;
  margin-top: 40px;
}

.kongres-info-btn {
  display: inline-block;
  padding: 14px 34px;
  background: linear-gradient(135deg, #1c4fa3, #0e2a5a);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  border-radius: 40px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.15);
  transition: all 0.3s ease;
}

.kongres-info-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 25px rgba(0,0,0,0.25);
}

/* detail info pod tlačidlom */
.kongres-detail {
  max-width: 800px;
  margin: 40px auto 0;
  padding: 25px;
  background: #f6f8fc;
  border-radius: 16px;
  line-height: 1.7;
  display: none;
}
.registracia-wrapper {
  text-align: center;
  margin: 50px 0;
}

.registracia-btn {
  display: inline-block;
  padding: 16px 40px;
  background: linear-gradient(135deg, #0e2a5a, #1c4fa3);
  color: white;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 50px;
  transition: all 0.3s ease;
  box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.registracia-btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 35px rgba(0,0,0,0.25);
}

/* ===== osnova ===== */
.syllabus-list {
  display: flex;
  gap: 1rem;
  justify-content: start;
  margin-top: 1rem;
}

.syllabus-item {
  display: inline-block;
  background: #0e6a92; /* farba bublinky */
  color: white;
  padding: 1rem 1.5rem;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  transition: 0.25s;
}

.kongres-toggle input {
  display: none;
}

.kongres-box {
  display: block;
  padding: 16px 20px;
  background: #ffffff;
  border-radius: 14px;
  font-weight: 600;
  cursor: pointer;
  color: #0a4a6c;
  box-shadow: 0 8px 20px rgba(6,30,60,0.08);
  transition: all 0.25s ease;
}

.kongres-box:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(6,30,60,0.14);
}

.kongres-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
  margin-top: 12px;
}

.kongres-content img {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.kongres-toggle input:checked ~ .kongres-content {
  max-height: 1200px;
}



/* ===== Mapa ===== */
.map-wrapper {
  width: 100%;
  height: 400px;
  border-radius: 12px;
  overflow: hidden;
  margin-top: 1rem;
  margin-bottom: 2rem;
}

.map-wrapper iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* ===== Footer ===== */
.footer {
  background: #0a4a6c;
  color: white;
  padding: 3rem 1.5rem;
  margin-top: 4rem;
}

.footer-inner {
  max-width: 1100px;
  margin: auto;
  text-align: center;
}

.footer h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.footer p {
  line-height: 1.5;
}
.footer {
  position: relative;
}

.footer-address {
  position: absolute;
  bottom: 10px;
  left: 20px;
  font-size: 14px;
  opacity: 0.9;
}
/* ===== Responzivita ===== */
@media (max-width: 768px) {
  .navbar {
    flex-wrap: wrap;
    gap: 1rem;
  }

  .header h1 {
    font-size: 2rem;
  }

  .container {
    padding: 1.5rem;
  }
}