/* Global Styles – SystemRead.me */

:root {
  --color-bg: #f5f5f5; /* Light matte gray */
  --color-surface: #ffffff; /* White for cards/surfaces */
  --color-text: #1a1a1a; /* Near-black text */
  --color-accent: #a00000; /* Dark red accent */
  --color-border: #e0e0e0; /* Light gray border */
  --font-body: 'Inter', system-ui, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
}

html {
  background-color: var(--color-bg);
  color-scheme: light; /* Set color scheme to light */
}

body {
  margin: 0;
  font-family: var(--font-display);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
}

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

a:hover {
  text-decoration: underline;
}

header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

nav {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  gap: 1rem;
  padding: 1rem;
  align-items: center;
  position: relative;
}

nav a {
  font-weight: 500;
}

nav .logo {
  font-weight: 700;
  margin-right: 2rem;
  color: var(--color-text); /* Ensure logo text is dark */
}

.menu {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

.menu li {
  position: relative;
}

.menu > li > a {
  padding: 0.25rem 0;
}

.menu li ul {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-surface); /* White dropdown background */
  border: 1px solid var(--color-border);
  list-style: none;
  padding: 0.5rem 0;
  min-width: 180px;
  z-index: 999;
}

.menu li ul li a {
  display: block;
  padding: 0.4rem 1rem;
  color: var(--color-text); /* Ensure nav links are dark */
}

.menu li ul li a:hover {
  background: var(--color-bg); /* Light gray hover */
}

.menu li:hover > ul {
  display: block;
}

main {
  max-width: 800px;
  margin: 2rem auto;
  padding: 0 1rem;
  flex-grow: 1; /* Allow main to grow */
}

footer {
  border-top: 1px solid var(--color-border);
  padding: 2rem 1rem;
  text-align: center;
  font-size: 0.8rem;
  color: #777777;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Space Grotesk', monospace;
  letter-spacing: -0.02em;
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.page-wrapper {
  display: flex;
  flex-direction: column;
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 1rem;
  gap: 2rem;
}

@media (min-width: 900px) {
  .page-wrapper {
    flex-direction: row;
  }
  main {
    max-width: 800px; /* Keep main content readable */
  }
  aside {
    width: 280px; /* Fixed width sidebar on larger screens */
    flex-shrink: 0;
    border-left: 1px solid var(--color-border);
    padding-left: 2rem;
  }
}

aside p {
  color: #777777; /* Darker gray for sidebar text */
  font-style: italic;
}

p {
  margin-bottom: 1rem;
}

ul, ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
}

blockquote {
  margin-left: 0;
  margin-right: 0;
  padding: 1rem;
  border-left: 3px solid var(--color-accent);
  background-color: #f0f0f0; /* Slightly darker gray for quote bg */
  font-style: italic;
  color: #333333;
}

pre, code {
  font-family: 'Source Code Pro', monospace;
}

pre {
  background-color: #f0f0f0; /* Slightly darker gray */
  border: 1px solid var(--color-border);
  padding: 1rem;
  overflow-x: auto;
  margin-bottom: 1rem;
}

/* Inline code */
:not(pre) > code {
  background-color: rgba(160, 0, 0, 0.08);
  color: var(--color-accent);
  padding: 0.2em 0.4em;
  border-radius: 3px;
}

h1 {
  font-size: 2.5rem; 
  font-weight: 700;
}
h2 {
  font-size: 2rem; 
  font-weight: 600;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.5rem;
}
h3 { font-size: 1.5rem; font-weight: 600; }
h4 { font-size: 1.2rem; font-weight: 600; }
h5 { font-size: 1rem; font-weight: 600; }
h6 { font-size: 0.9rem; font-weight: 600; color: #777777; text-transform: uppercase; letter-spacing: 0.05em; }

/* Visited links */
a:visited {
  color: #c04040; /* Slightly lighter dark red for visited */
}

/* Focus state for accessibility */
a:focus,
button:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Homepage Sections */
.hero-section {
  padding: 4rem 1rem;
  max-width: 800px;
  margin: 0 auto;
}

.hero-section h1 {
  font-size: 2.5rem;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.lead {
  font-size: 1.25rem;
  line-height: 1.5;
  margin-bottom: 2rem;
  color: #444;
}

.content-section {
  margin: 4rem 0;
  padding: 0 1rem;
}

.content-section h2 {
  margin-bottom: 2rem;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 1.5rem;
  border-radius: 5px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.card h3 {
  margin-top: 0;
  margin-bottom: 1rem;
}

/* Platform Logos */
.platform-logos {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-top: 2rem;
}

.platform-category {
  flex: 1;
  width: 100%;
}

.platform-category h3 {
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.logo-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.platform-logo {
  display: inline-block;
  padding: 0.5rem 1rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-weight: 500;
}

.methodologies-note {
  margin-top: 2rem;
  font-style: italic;
  color: #777;
}

/* Resource Section */
.featured-resource {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 2rem;
  border-radius: 5px;
  margin-bottom: 3rem;
}

.resource-content {
  max-width: 700px;
  margin: 0 auto;
}

.resource-content h3 {
  margin-top: 0;
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 1.5rem;
}

.post-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 1.5rem;
  border-radius: 5px;
  transition: transform 0.2s;
}

.post-card:hover {
  transform: translateY(-3px);
}

.post-card h4 {
  margin-top: 0;
  margin-bottom: 1rem;
}

.read-more {
  display: inline-block;
  margin-top: 1rem;
  font-weight: 500;
}

/* CTA Section */
.cta-container {
  max-width: 500px;
  margin: 2rem auto 0;
  text-align: center;
}

.signup-form {
  display: flex;
  gap: 0.5rem;
}

.signup-form input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 1rem;
}

.cta-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 2.5rem;
  border-radius: 5px;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 1.5rem;
}

/* Buttons */
.btn-primary, .btn-secondary {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  font-weight: 500;
  text-align: center;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
  border: none;
}

.btn-primary {
  background-color: var(--color-accent);
  color: white;
}

.btn-primary:hover {
  background-color: #800000;
  text-decoration: none;
}

.btn-secondary {
  background-color: transparent;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
}

.btn-secondary:hover {
  background-color: rgba(160, 0, 0, 0.05);
  text-decoration: none;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .hero-section h1 {
    font-size: 2rem;
  }
  
  .signup-form {
    flex-direction: column;
  }
  
  .cta-buttons {
    flex-direction: column;
  }
}