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

body {
  font-family: 'Inter', sans-serif;
  background: #f5f7fa;
  color: #1b1f24;
  overflow-x: hidden;
}

html {
  scroll-behavior: smooth;
}

.container {
  width: 90%;
  max-width: 1280px;
  margin: auto;
}

/* HEADER */

header {
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
}

.logo {
  font-size: 28px;
  font-weight: 800;
  font-family: 'Montserrat', sans-serif;
  color: #00a67e;
}

.logo span {
  color: #1b1f24;
}

nav ul {
  display: flex;
  gap: 30px;
  list-style: none;
}

nav ul li a {
  color: #1b1f24;
  text-decoration: none;
  transition: .3s;
  font-weight: 600;
}

nav ul li a:hover {
  color: #00a67e;
}

/* LANGUAGE */

.language-switcher {
  display: flex;
  gap: 10px;
  align-items: center;
}

.lang-btn {
  border: none;
  background: white;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 20px;
  transition: .3s;
  box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

.lang-btn:hover {
  transform: scale(1.1);
}

/* HERO */

.hero-slider {
  position: relative;
  height: 100vh;
  overflow: hidden;
}

.slide {
  position: absolute;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1s ease;
}

.slide.active {
  opacity: 1;
}

.slide::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.45);
}

.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  text-align: center;
  height: 100%;
  padding: 20px;
}

.hero-content h1 {
  font-size: 72px;
  font-family: 'Montserrat', sans-serif;
  max-width: 950px;
  line-height: 1.1;
  margin-bottom: 20px;
  color: #0f1720;
}

.hero-content p {
  font-size: 22px;
  max-width: 800px;
  color: #334155;
  margin-bottom: 35px;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}

.btn {
  padding: 15px 35px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  transition: .3s;
  display: inline-block;
}

.btn-primary {
  background: #00a67e;
  color: white;
  box-shadow: 0 10px 25px rgba(0,166,126,0.2);
}

.btn-primary:hover {
  background: #008f6c;
  transform: translateY(-3px);
}

.btn-secondary {
  border: 1px solid #0f1720;
  color: #0f1720;
  background: rgba(255,255,255,0.7);
}

.btn-secondary:hover {
  background: #0f1720;
  color: white;
}

/* SECTIONS */

section {
  padding: 110px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: 48px;
  margin-bottom: 15px;
  font-family: 'Montserrat', sans-serif;
  color: #0f1720;
}

.section-title p {
  color: #475569;
  max-width: 700px;
  margin: auto;
}

/* ABOUT */

.about-grid,
.contact-wrapper {
  display: grid;
  grid-template-columns: repeat(auto-fit,minmax(320px,1fr));
  gap: 50px;
  align-items: center;
}

.about-image img {
  width: 100%;
  border-radius: 25px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.12);
}

.about-text h3 {
  font-size: 36px;
  margin-bottom: 20px;
  color: #00a67e;
}

.about-text p {
  margin-bottom: 20px;
  color: #334155;
}

/* SERVICES */

.services-grid,
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit,minmax(280px,1fr));
  gap: 30px;
}

.service-card {
  background: white;
  padding: 40px 30px;
  border-radius: 24px;
  transition: .3s;
  border: 1px solid rgba(0,0,0,0.05);
  box-shadow: 0 10px 35px rgba(0,0,0,0.05);
}

.service-card:hover {
  transform: translateY(-10px);
  border-color: #00a67e;
}

.service-card h3 {
  margin-bottom: 15px;
  color: #00a67e;
  font-size: 24px;
}

.service-card p {
  color: #475569;
}

/* PROJECTS */

.project-card {
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  height: 350px;
  box-shadow: 0 15px 40px rgba(0,0,0,0.1);
}

.project-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: .5s;
}

.project-card:hover img {
  transform: scale(1.1);
}

.project-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  padding: 30px;
  background: linear-gradient(to top, rgba(255,255,255,0.95), transparent);
}

.project-overlay h3 {
  font-size: 28px;
  margin-bottom: 10px;
  color: #0f1720;
}

.project-overlay p {
  color: #334155;
}

/* CONTACT */

.contact-form {
  background: white;
  padding: 40px;
  border-radius: 25px;
  box-shadow: 0 15px 45px rgba(0,0,0,0.08);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 15px;
  margin-bottom: 20px;
  border: 1px solid #dbe2ea;
  border-radius: 12px;
  background: #f8fafc;
  color: #1b1f24;
  font-size: 16px;
}

.contact-form textarea {
  resize: none;
  height: 140px;
}

.contact-form button {
  border: none;
  cursor: pointer;
}

/* FOOTER */

footer {
  background: white;
  padding: 40px 0;
  text-align: center;
  border-top: 1px solid rgba(0,0,0,0.05);
}

footer p {
  color: #64748b;
  margin-top: 15px;
}

/* RESPONSIVE */

@media(max-width:900px){

  .hero-content h1 {
    font-size: 48px;
  }

  nav {
    display: none;
  }

}

@media(max-width:600px){

  .hero-content h1 {
    font-size: 38px;
  }

  .section-title h2 {
    font-size: 34px;
  }

  .hero-content p {
    font-size: 18px;
  }

}