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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Poppins", "Arial", sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: rgb(226, 237, 245);
}

header {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(226, 237, 245, 0.45);
  -webkit-backdrop-filter: blur(10px);
          backdrop-filter: blur(10px);
  z-index: 1000;
  transition: all 0.3s ease;
  box-shadow: 0 2px 10px rgba(15, 52, 119, 0.1);
  min-height: 70px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 2rem;
}

nav {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding: 0;
  height: 70px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 4rem;
}
.nav-links a {
  text-decoration: none;
  color: #333;
  font-weight: 500;
  transition: color 0.3s ease;
  cursor: pointer;
}
.nav-links a:hover {
  color: #2c5aa0;
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}
.hamburger span {
  width: 25px;
  height: 3px;
  background: #333;
  margin: 3px 0;
  transition: 0.3s ease;
}

.nowrap {
  white-space: nowrap;
}

.start {
  height: 100vh;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.start-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  height: 120%;
  background: url("../images/bg01.jpg") center/cover no-repeat;
  z-index: -2;
  will-change: transform;
}
.start-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.3);
  z-index: -1;
}
.start-content {
  color: rgb(226, 237, 245);
  max-width: 1600px;
  padding: 0 2rem;
  z-index: 1;
}
.start h1 {
  font-size: 4.5rem;
  margin-bottom: 1rem;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}
.start p {
  font-size: 2.3rem;
  margin-bottom: 2rem;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.cta-button {
  display: inline-block;
  background: rgba(44, 90, 160, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: rgb(226, 237, 245);
  padding: 1rem 2rem;
  text-decoration: none;
  border-radius: 1rem;
  font-weight: bold;
  transition: background 0.3s ease;
  font-size: 1.5rem;
  display: inline-flex;
  align-items: center;
  gap: 1em;
}
.cta-button .icon {
  font-size: 2em;
}
.cta-button:hover {
  background: #1a3d73;
}

section {
  padding: 15rem 5%;
  max-width: 1920px;
  margin: 0 auto;
  padding: 5rem 5%;
}

#odtruwanie::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  transform: translateY(-20vh);
  height: 20vh;
  width: 100%;
  background-image: linear-gradient(to bottom, transparent, white);
}

.section-title {
  font-size: 2.5rem;
  color: #2c5aa0;
  margin-bottom: 2rem;
  text-align: center;
  position: relative;
}
.section-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 3px;
  background: #2c5aa0;
  margin: 1rem auto;
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.content-card {
  background: #f8f9fa;
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(55, 94, 150, 0.129), 0 12px 25px rgba(156, 173, 228, 0.154);
  transition: transform 0.3s ease;
}
.content-card:hover {
  transform: translateY(-5px);
}
.content-card h3 {
  color: #2c5aa0;
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.info1 {
  text-align: center;
  margin: 4rem auto 0;
}
.info1 strong {
  border: 1px solid #2c5aa0;
  border-radius: 1rem;
  font-size: 1.2em;
  padding: 1em 2em;
}

.phone-number {
  font-size: 2rem;
  color: #2c5aa0;
  font-weight: bold;
  text-align: center;
  margin: 2rem 0;
}

.phone-link {
  color: #2c5aa0;
  text-decoration: none;
}
.phone-link:hover {
  text-decoration: underline;
}

.cities-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-top: 2rem;
}

.city-tag {
  background: #e3f2fd;
  color: #2c5aa0;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 70px;
    right: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: rgba(226, 237, 245, 0.98);
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: 4rem;
    transition: right 0.3s ease;
  }
  .nav-links a {
    padding: 0.6em;
    display: inline-block;
    font-size: 1.2em;
  }
  .nav-links.active {
    right: 0;
  }
  .hamburger {
    display: flex;
  }
  .hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
  }
  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }
  .hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
  }
  .start h1 {
    font-size: 2.5rem;
  }
  .start p {
    font-size: 1.1rem;
    text-wrap: pretty;
  }
  section {
    padding: 3rem 5%;
  }
  .section-title {
    font-size: 2rem;
  }
  .phone-number {
    font-size: 1.5rem;
  }
}