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

:root {
  --primary: #3a86ff;
  --primary-dark: #2667cc;
  --secondary: #ff006e;
  --secondary-dark: #d90057;
  --dark: #2b2d42;
  --light: #f8f9fa;
  --gray: #8d99ae;
  --success: #8ac926;
  --success-dark: #72a520;
  --warning: #ffbe0b;
  --warning-dark: #e0a800;
  --danger: #ff5252;
  --danger-dark: #e04747;
  --border-radius: 8px;
  --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);
  --transition: all 0.3s ease;
}

body {
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  line-height: 1.7;
  background: var(--light);
  color: var(--dark);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin-bottom: 1rem;
  line-height: 1.2;
  font-weight: 700;
  color: var(--dark);
}

h1 {
  font-size: 2.5rem;
  color: var(--light);
}

h2 {
  font-size: 2rem;
  position: relative;
  padding-bottom: 0.5rem;
}

h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 3px;
  width: 60px;
  background-color: var(--primary);
}

p {
  margin-bottom: 1.5rem;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--primary-dark);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

header {
  background: var(--dark);
  color: var(--light);
  padding: 1.5rem 2rem;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

nav {
  display: flex;
  gap: 1.5rem;
}

nav a {
  color: var(--light);
  font-weight: 500;
  position: relative;
}

nav a::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--primary);
  transition: var(--transition);
}

nav a:hover::after {
  width: 100%;
}

section {
  margin: 4rem 0;
}

section:first-of-type {
  margin-top: 2rem;
}

.project {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  overflow: hidden;
  transition: var(--transition);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.project:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.12), 0 4px 8px rgba(0, 0, 0, 0.06);
}

.project h3 {
  margin-bottom: 0.75rem;
}

button,
input[type="submit"],
a.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(to bottom right, var(--primary), var(--primary-dark));
  color: white;
  padding: 0.75rem 1.75rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 6px rgba(58, 134, 255, 0.25);
  position: relative;
  overflow: hidden;
  text-transform: capitalize;
  min-width: 120px;
  text-decoration: none;
}

button:hover,
input[type="submit"]:hover,
a.btn:hover {
  box-shadow: 0 7px 14px rgba(58, 134, 255, 0.35);
  transform: translateY(-2px);
  color: white;
}

button:active,
input[type="submit"]:active,
a.btn:active {
  transform: translateY(0);
  box-shadow: 0 4px 6px rgba(58, 134, 255, 0.25);
}

.btn-secondary,
button.btn-secondary,
a.btn-secondary {
  background: transparent;
  background-image: none;
  border: 2px solid var(--primary);
  color: var(--primary);
  box-shadow: none;
}

.btn-secondary:hover,
button.btn-secondary:hover,
a.btn-secondary:hover {
  background: var(--primary);
  color: white;
  box-shadow: 0 7px 14px rgba(58, 134, 255, 0.25);
}

form {
  max-width: 600px;
}

input[type="text"],
textarea {
  width: 100%;
  padding: 0.75rem;
  margin-bottom: 1rem;
  border: 1px solid var(--gray);
  border-radius: var(--border-radius);
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition);
}

input[type="text"]:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(58, 134, 255, 0.25);
}

textarea {
  min-height: 150px;
  resize: vertical;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  header {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }

  nav {
    margin-top: 0.5rem;
  }
}