:root {
  --black: #0b0b0b;
  --yellow: #ffd400;
  --white: #ffffff;
  --gray: #b5b5b5;
}

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

/* BASE */
body {
  font-family: 'Inter', sans-serif;
  background: var(--black);
  color: var(--yellow);
  line-height: 1.6;
}

/* CONTAINER */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

/* LINKS */
a {
  color: var(--yellow);
  text-decoration: none;
  font-weight: 600;
}

a:hover {
  text-decoration: underline;
}

/* HEADER */
.site-header {
  border-bottom: 1px solid #222;
  padding: 22px 0;
}

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

.logo {
  font-weight: 900;
  letter-spacing: 2px;
  color: var(--yellow);
}

nav a {
  margin-left: 24px;
  font-size: 14px;
  opacity: 0.85;
}

/* HERO */
.hero {
  padding: 100px 0;
}

.hero h1 {
  font-size: 50px;
  line-height: 1.05;
  margin-bottom: 24px;
  color: var(--yellow);
}

.highlight {
  background: var(--white);
  color: var(--black);
  padding: 0 8px;
}

.hero-sub {
  font-size: 18px;
  color: var(--gray);
  max-width: 600px;
  margin-bottom: 36px;
}

/* CTA */
.cta {
  font-weight: 800;
  letter-spacing: 0.5px;
  border-bottom: 4px solid var(--yellow);
  padding-bottom: 4px;
}

/* ARTICLES */
.articles {
  padding: 80px 0;
}

/* WHITE = RARE & IMPORTANT */
.post {
  background: var(--white);
  color: var(--black);
  padding: 42px;
  margin-bottom: 60px;
}

.post h2 {
  font-size: 30px;
  margin-bottom: 14px;
  line-height: 1.2;
}

.post p {
  color: #333;
  max-width: 640px;
  margin-bottom: 14px;
}

/* NEWSLETTER — POWER SECTION */
.newsletter {
  background: var(--yellow);
  color: var(--black);
  padding: 90px 0;
  margin-top: 80px;
}

.newsletter h3 {
  font-size: 32px;
  font-weight: 900;
  margin-bottom: 12px;
}

.newsletter p {
  font-size: 16px;
  margin-bottom: 24px;
}

.newsletter form {
  display: flex;
  max-width: 420px;
}

.newsletter input {
  flex: 1;
  padding: 14px;
  border: none;
  outline: none;
  font-size: 14px;
}

.newsletter button {
  background: var(--black);
  color: var(--yellow);
  border: none;
  padding: 14px 24px;
  font-weight: 900;
  cursor: pointer;
}

/* FOOTER */
.site-footer {
  padding: 40px 0;
  font-size: 14px;
  color: #777;
}