:root {
  --primary-color: #3a86ff;
  --primary-dark: #2667cc;
  --accent-color: #ff006e;
  --dark-color: #1a1a2e;
  --gray-color: #6c757d;

  --font-primary: 'Poppins', sans-serif;
  --font-secondary: 'Roboto', sans-serif;

  --max-width: 1200px;
  --border-radius: 8px;
  --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

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

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: #333;
  overflow-x: hidden;
}

html {
  scroll-behavior: smooth;
}

h1,
h2,
h3,
h4 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 2rem;
  text-align: center;
  position: relative;
}

h2::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: var(--primary-color);
  margin: 1rem auto;
  border-radius: 2px;
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: 1rem;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--border-radius);
}

ul {
  list-style: none;
}

.btn {
  display: inline-block;
  background: var(--primary-color);
  color: white;
  padding: 0.8rem 1.8rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  font-family: var(--font-secondary);
  text-align: center;
}

.btn:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: var(--box-shadow);
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section-intro {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3rem;
  font-size: 1.1rem;
  color: var(--gray-color);
}

.dark-section {
  background-color: var(--dark-color);
  color: white;
}

.dark-section h2::after {
  background: var(--accent-color);
}

/*menu linkeil*/
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--dark-color);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar.scrolled {
  padding: 0.5rem 0;
  box-shadow: var(--box-shadow);
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: white;
}

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

.primary-navigation {
  display: flex;
  gap: 2rem;
}

.nav-link {
  color: white;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  padding: 0.5rem 0;
}

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

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

/*koko näyttö page*/
.hero {
  height: 100vh;
  min-height: 600px;
  background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)),
    url('images/hero.webp');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: white;
  display: flex;
  align-items: center;
  text-align: center;
  position: relative;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero h1 {
  margin-bottom: 1.5rem;
  animation: fadeInUp 1s ease;
}

.subtitle {
  font-size: 1.5rem;
  max-width: 700px;
  margin: 0 auto 3rem;
  animation: fadeInUp 1s ease 0.2s forwards;
  opacity: 0;
}

.hero .btn {
  animation: fadeInUp 1s ease 0.4s forwards;
  opacity: 0;
}

/*PERUS TIETOA DRONEISTA*/
.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.content-grid.reversed {
  direction: rtl;
}

.content-grid.reversed > * {
  direction: ltr;
}

.text-content {
  padding: 1rem;
}

.image-content img {
  box-shadow: var(--box-shadow);
}

/*kortti grid*/
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.card {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  transition: var(--transition);
}

.dark-section .card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.card h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.dark-section .card h3 {
  color: var(--accent-color);
}

.card p {
  color: var(--gray-color);
  font-size: 0.9rem;
}

.dark-section .card p {
  color: rgba(255, 255, 255, 0.8);
}

.card-content {
  padding: 1rem;
}

/*aloittelija neuvot*/
.steps {
  display: grid;
  gap: 2rem;
  max-width: 800px;
  margin: 0 auto 3rem;
}

.step {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.step-number {
  background: var(--accent-color);
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  flex-shrink: 0;
}

.step-content h3 {
  margin-bottom: 0.5rem;
}

/* Kuvia */
.image-gallery {
  gap: 1.5rem;
}

.image-gallery img {
  height: 250px;
  width: 100%;
  object-fit: cover;
  transition: var(--transition);
  box-shadow: var(--box-shadow);
}

.image-gallery img:hover {
  transform: scale(1.03);
}

/*yhteyset muutettavat ominaisuudet sama gridi (optimisointi)*/
.image-gallery,
.gear-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  margin-top: 3rem;
}

/* Aloittelijan kamppeet */
.gear-grid {
  gap: 2rem;
}

.gear-item {
  background: white;
  padding: 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  transition: var(--transition);
}

.gear-item:hover {
  transform: translateY(-5px);
}

.gear-item h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.gear-item p {
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

/* Turvallisuus ketään ei kiinosta bla bla bla */
.safety-text ul {
  margin: 1.5rem 0;
}

.safety-text li {
  margin-bottom: 0.8rem;
  padding-left: 1.5rem;
  position: relative;
}

.safety-text li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 8px;
  height: 8px;
  background: var(--accent-color);
  border-radius: 50%;
}
.safety-image img {
  box-shadow: var(--box-shadow);
}

/*animaation*/
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* responsiivinen mobiili ystävällinen(: */
@media (max-width: 992px) {
  .content-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .content-grid.reversed {
    direction: ltr;
  }

  .navbar {
    padding: 0.8rem 0;
  }

  .navbar .container {
    justify-content: center;
  }

  .primary-navigation {
    display: none;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 3rem 0;
  }

  .hero {
    min-height: 500px;
  }

  .subtitle {
    font-size: 1.2rem;
  }

  .card-grid,
  .gear-grid {
    grid-template-columns: 1fr;
  }

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

  .step {
    flex-direction: column;
  }

  .step-number {
    margin-bottom: 0.5rem;
  }
}

@media (max-width: 576px) {
  .container {
    padding: 0 1rem;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .subtitle {
    font-size: 1rem;
  }

  .btn {
    padding: 0.6rem 1.5rem;
  }

  .image-gallery {
    grid-template-columns: 1fr;
  }
}