/* ============================================
   C.M. Kennedy — cmkennedy.com
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

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

:root {
  --white:      #FFFFFF;
  --black:      #0A0A0A;
  --gray:       #6B7280;
  --light:      #F3F4F6;
  --border:     #E5E7EB;
  --wide:       1200px;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background-color: var(--white);
  color: var(--black);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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


/* ============================================
   Navigation
   ============================================ */

nav {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 1.5rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--black);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray);
  transition: color 0.15s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--black);
}


/* ============================================
   Page wrapper
   ============================================ */

main {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 0 3rem;
}


/* ============================================
   Hero
   ============================================ */

.hero {
  padding: 7rem 0 6rem;
  max-width: 900px;
}

.hero h1 {
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--black);
  margin-bottom: 1.75rem;
}

.hero p {
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--gray);
  line-height: 1.65;
  max-width: 540px;
  margin-bottom: 2.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: #2563EB;
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  transition: background 0.15s ease;
  letter-spacing: -0.01em;
}

.btn:hover {
  background: #1D4ED8;
}

.btn-ghost {
  background: transparent;
  color: var(--black);
  border: 1.5px solid var(--border);
  margin-left: 0.75rem;
}

.btn-ghost:hover {
  background: var(--light);
  border-color: transparent;
}


/* ============================================
   Section label
   ============================================ */

.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 2rem;
}


/* ============================================
   Post section
   ============================================ */

.post-section {
  padding: 5rem 0;
  border-top: 1px solid var(--border);
}


/* ============================================
   Post list
   ============================================ */

.post-list {
  list-style: none;
}

.post-item {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 2rem;
  align-items: start;
  padding: 2rem 0;
  border-bottom: 1px solid var(--border);
  transition: opacity 0.15s ease;
  cursor: pointer;
}

.post-item:first-child {
  border-top: 1px solid var(--border);
}

.post-item:hover {
  opacity: 0.6;
}

.post-date {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--gray);
  padding-top: 0.25rem;
  white-space: nowrap;
}

.post-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 0.45rem;
  color: var(--black);
}

.post-title a {
  color: var(--black);
}

.post-excerpt {
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.6;
}

.view-all-wrap {
  margin-top: 2.5rem;
}

.view-all {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--black);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: gap 0.15s ease;
}

.view-all:hover {
  gap: 0.6rem;
}


/* ============================================
   Newsletter
   ============================================ */

.newsletter-section {
  padding: 5rem 0;
  border-top: 1px solid var(--border);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.newsletter-section h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 0.75rem;
}

.newsletter-section p {
  font-size: 1rem;
  color: var(--gray);
  margin-bottom: 2rem;
  max-width: 420px;
  line-height: 1.65;
}

.newsletter-form {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}

.newsletter-form input[type="email"] {
  padding: 0.75rem 1.25rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  border: 1.5px solid var(--border);
  background: var(--white);
  color: var(--black);
  border-radius: 999px;
  width: 280px;
  outline: none;
  transition: border-color 0.15s ease;
}

.newsletter-form input[type="email"]:focus {
  border-color: var(--black);
}

.newsletter-form input[type="email"]::placeholder {
  color: var(--gray);
}

.newsletter-form button {
  padding: 0.75rem 1.5rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  background: var(--black);
  color: var(--white);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: opacity 0.15s ease;
  letter-spacing: -0.01em;
}

.newsletter-form button:hover {
  opacity: 0.7;
}


/* ============================================
   Single post
   ============================================ */

.post-header {
  padding: 5rem 0 3.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 3.5rem;
  max-width: 720px;
}

.post-header .post-meta-line {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--gray);
  margin-bottom: 1.25rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.post-header h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.post-body {
  max-width: 660px;
  font-size: 1.05rem;
  line-height: 1.8;
  padding-bottom: 5rem;
}

.post-body p {
  margin-bottom: 1.5rem;
}

.post-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 3rem 0 1rem;
  line-height: 1.2;
}

.post-body h3 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
  margin: 2.5rem 0 0.75rem;
}

.post-body a {
  color: var(--black);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.post-body blockquote {
  border-left: 3px solid var(--black);
  padding-left: 1.5rem;
  margin: 2.5rem 0;
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.5;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray);
  margin-top: 3rem;
  transition: color 0.15s ease, gap 0.15s ease;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.back-link:hover {
  color: var(--black);
  gap: 0.65rem;
}


/* ============================================
   Blog index header
   ============================================ */

.page-header {
  padding: 5rem 0 4rem;
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.page-header p {
  margin-top: 1rem;
  font-size: 1.05rem;
  color: var(--gray);
  max-width: 460px;
  line-height: 1.6;
}


/* ============================================
   Blog post layout (content + sidebar)
   ============================================ */

.post-layout {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 5rem;
  align-items: start;
}

.post-sidebar {
  position: sticky;
  top: 2rem;
  padding-top: 0;
}

/* ============================================
   Author bio (sidebar)
   ============================================ */

.author-bio {
  padding: 1.5rem;
  border: 1px solid var(--border);
}

.author-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--light);
  border: 1px solid var(--border);
  overflow: hidden;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.author-avatar svg {
  width: 24px;
  height: 24px;
  color: var(--border);
}

.author-bio-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 0.5rem;
}

.author-bio-name {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0.2rem;
}

.author-bio-role {
  font-size: 0.775rem;
  color: var(--gray);
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.author-bio-text {
  font-size: 0.825rem;
  color: var(--gray);
  line-height: 1.6;
}

@media (max-width: 900px) {
  .post-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .post-sidebar {
    position: static;
    border-top: 1px solid var(--border);
    padding-top: 2.5rem;
    padding-bottom: 5rem;
  }
}

/* ============================================
   Footer
   ============================================ */

footer {
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 1.75rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

footer p,
footer a {
  font-size: 0.8rem;
  color: var(--gray);
}

footer a:hover {
  color: var(--black);
}


/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
  nav {
    padding: 1.25rem 1.5rem;
  }

  main {
    padding: 0 1.5rem;
  }

  .hero {
    padding: 4rem 0 3.5rem;
  }

  .post-item {
    grid-template-columns: 1fr;
    gap: 0.3rem;
    padding: 1.5rem 0;
  }

  .footer-inner {
    padding: 1.5rem;
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .newsletter-form {
    flex-direction: column;
  }

  .newsletter-form input[type="email"] {
    width: 100%;
  }

  .newsletter-form button {
    width: 100%;
  }

  .post-header {
    padding: 3rem 0 2.5rem;
  }

  .page-header {
    padding: 3.5rem 0 2.5rem;
  }

  .btn-ghost {
    margin-left: 0;
    margin-top: 0.75rem;
  }
}