:root {
  --clr-bg-dark: #22252A;
  --clr-bg-light: #F5F7FA;
  --clr-bg-white: #FFFFFF;
  
  --clr-accent: #FF6B00;
  --clr-accent-hover: #E65C00;
  
  --clr-text-main: #333333;
  --clr-text-inverse: #FFFFFF;
  --clr-text-muted: #58595c;
  
  --clr-border-dark: #333840;
  --clr-border-light: #E1E4E8;

  --font-main: 'Montserrat', 'Segoe UI', Roboto, sans-serif;
  
  --container-width: 1400px;
  
  --transition-base: 0.3s ease;
  --shadow-base: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 8px 15px rgba(0, 0, 0, 0.15);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  color: var(--clr-text-main);
  background-color: var(--clr-bg-light);
  line-height: 1.6;
  font-size: 16px;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--clr-bg-dark);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--clr-accent);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--clr-accent-hover);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 32px;
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 16px;
  border-radius: 4px;
  cursor: pointer;
  border: none;
  transition: background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-primary {
  background-color: var(--clr-accent);
  color: var(--clr-text-inverse);
}

.btn-primary:hover {
  background-color: var(--clr-accent-hover);
  color: var(--clr-text-inverse);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--clr-accent);
  color: var(--clr-accent);
}

.btn-outline:hover {
  background-color: var(--clr-accent);
  color: var(--clr-text-inverse);
}

.section {
  padding: 80px 0;
}

.section-dark {
  background-color: var(--clr-bg-dark);
  color: var(--clr-text-inverse);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4,
.section-dark h5,
.section-dark h6 {
  color: var(--clr-text-inverse);
}

.section-dark p {
  color: var(--clr-text-muted);
}