* {box-sizing: border-box; margin: 0; padding: 0; }
:root {
  background: #4c396b;
  background: linear-gradient(180deg, #4c396b 0%, #6a3477 50%);
  --text-color: #e0e0e0;
  --color-text-light: var(--text-color);
  --color-primary: #6a3477 ;
  --color-secondary: #4c396b;
  --code-bg: #1e1e1e;
  --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-code: 'Fira Code', 'Courier New', monospace;
  --spacing: 20px;
}

.container { margin: 0 auto; padding: 0 1rem; box-sizing: border-box; }

a {
  color: var(--text-color);
}
a:active {
  color: var(--text-color);
}

body { font-size: 1.5rem; font-family: var(--font-main); color: var(--color-text-light); line-height: 1.6; transition: background-color var(--transition-speed), color var(--transition-speed); }

.header-section { background-color: var(--color-primary); padding: 1rem 1.5rem; position: relative; top: 0; z-index: 1000; box-shadow: 0 2px 8px rgba(0,0,0,0.15); }
.header-section__nav { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.header-section__logo { color: white; font-weight: 700; font-size: 1.5rem; text-decoration: none; user-select: none;}
.header-section__tagline { display: block; font-size: 0.8rem; font-weight: 400; color: rgba(255, 255, 255, 0.7); margin-top: 0.2rem; font-style: italic; transition: color 0.3s ease; }
.header-section__logo:hover .header-section__tagline { color: var(--color-accent); }
.header-section__toggle { display: none; font-size: 1.5rem; background: none; border: none; color: white; cursor: pointer; }
.header-section__links { display: flex; gap: 1rem;}
.header-section__btn { color: white; text-decoration: none; font-weight: 600; padding: 0.5rem 1rem; border-radius: 8px; transition: background-color 0.3s ease, transform 0.2s ease; }
.header-section__btn:hover { background-color: var(--color-primary-hover); transform: translateY(-2px); }
@media (max-width: 768px) {
  .header-section__toggle { display: block; }
  .header-section__links { flex-direction: column;width: 100%; display: none; margin-top: 1rem; }
  .header-section__links.active { display: flex; }
  .header-section__btn { padding: 0.75rem; text-align: center; }
}
nav { display: flex; align-items: center; justify-content: space-between; }
.nav-links { list-style: none; display: flex;gap: 1.5rem; }
.nav-links a { color: white; text-decoration: none; font-weight: 600; transition: color 0.3s ease; }
.nav-links a:hover { color: var(--color-accent);}

.hero { padding: 6rem 1rem 4rem; text-align: center; }
.hero h1 { font-size: 3rem; font-weight: 900; margin-bottom: 1rem; letter-spacing: 1.1px; }
.hero p { font-size: 1.25rem; margin-bottom: 2rem; color: var(--color-primary-hover); }

.btn { background-color: var(--color-primary); color: white; padding: 0.85rem 2.5rem; font-weight: 700; font-size: 1rem; border-radius: 30px; cursor: pointer; user-select: none; text-decoration: none; display: inline-block; }
.section { padding: 3rem 1rem; text-align: center; }
.section h2 { font-size: 2.25rem; font-weight: 700; margin-bottom: 1rem; letter-spacing: 1.1px; }
.section p { max-width: 600px; margin: 0 auto; color: var(--color-primary-hover); font-weight: 500; font-size: 1.1rem; }
.section-left { padding: 3rem 1rem; text-align: left; }
.section-left h2 { font-size: 2.25rem; font-weight: 700; margin-bottom: 1rem; letter-spacing: 1.1px; }
.section-left p { max-width: 1000px; margin: 0 auto; color: var(--color-primary-hover); font-weight: 500; font-size: 1.1rem; }
.section-right { padding: 3rem 1rem; text-align: right; }
.section-right h2 { font-size: 2.25rem; font-weight: 700; margin-bottom: 1rem; letter-spacing: 1.1px; } 
.section-right p { max-width: 1000px; margin: 0 auto; color: var(--color-primary-hover); font-weight: 500; font-size: 1.1rem; }
@media (max-width: 720px) {
  .nav-links { display: none; }
  nav { justify-content: space-between; }
  .cards { flex-direction: column; align-items: center; }
}
button { width: 140px; padding: 12px 0; margin: 12px 8px 0 8px; border: none; border-radius: 10px; background: #3d465f; color: white; font-weight: 600; font-size: 1rem; cursor: pointer; transition: background-color 0.25s ease; }
ul { list-style: none;  padding-left: 0; margin-top: 1rem; margin-bottom: 1rem; }
li { position: relative; padding-left: 1.5rem; margin-bottom: 0.75rem; line-height: 1;}
li:before {
  content: "👉 ";
  padding-right: 5px;
}

@media (max-width: 768px) {
  .header-section__toggle { display: block; }
  .header-section__links { flex-direction: column;width: 100%; display: none; margin-top: 1rem; }
  .header-section__links.active { display: flex; }
  .header-section__btn { padding: 0.75rem; text-align: center; }
}

.section { padding: 3rem 1rem; text-align: center; font-size: 1.5rem; }
.section h2 { font-size: 2.25rem; font-weight: 700; margin-bottom: 1rem; letter-spacing: 1.1px; }
.section p { max-width: 600px; margin: 0 auto; color: var(--color-primary-hover); font-weight: 500; font-size: 1.1rem; }
.section-left { padding: 3rem 1rem; text-align: left; }
.section-left h2 { font-size: 2.25rem; font-weight: 700; margin-bottom: 1rem; letter-spacing: 1.1px; }
.section-left p { max-width: 1000px; margin: 0 auto; color: var(--color-primary-hover); font-weight: 500; font-size: 1.1rem; }
.section-right { padding: 3rem 1rem; text-align: right; }
.section-right h2 { font-size: 2.25rem; font-weight: 700; margin-bottom: 1rem; letter-spacing: 1.1px; } 
.section-right p { max-width: 1000px; margin: 0 auto; color: var(--color-primary-hover); font-weight: 500; font-size: 1.1rem; }

.cards { display: flex; gap: 1.8rem; justify-content: center; margin-top: 2rem; flex-wrap: wrap; }
.card { background: #222; box-shadow: 0 4px 12px rgba(0,0,0,0.5); border-radius: 12px; padding: 1.8rem; min-width: 280px; max-width: 320px; transition: transform 0.3s ease, box-shadow 0.3s ease; cursor: default; }

.card:hover { transform: translateY(-8px); box-shadow: 0 14px 30px rgba(0,0,0,0.3); }
.card p { font-weight: 400; color: var(--color-text-light); }
footer { background: #111; color: #bbb; text-align: center; padding: 1.5rem 1rem; font-size: 0.9rem; user-select: none; }
.footer-content { display: flex; justify-content: space-between; align-items: center; max-width: 960px; margin: 0 auto; flex-wrap: wrap; gap: 1rem; }
.social-links a { color: #bbb; font-size: 1.6rem; margin: 0 0.5rem; transition: color 0.3s ease; user-select: none; text-decoration: none; }
.social-links a:hover { color: var(--color-accent); }