/* ==========================================================================
   CYBERSTEP.ORG - BESPOKE EDITORIAL DESIGN SYSTEM
   ========================================================================== */

/* --- CSS Variables & Design Tokens --- */
:root {
  --font-heading: Georgia, Cambria, "Times New Roman", Times, serif;
  --font-body: "Segoe UI", Arial, sans-serif;
  
  /* Color Palette */
  --color-bg-base: #fbfaf5;       /* Soft warm cream base */
  --color-bg-surface: #ffffff;    /* Pure white surfaces */
  --color-text-primary: #292927;  /* Deep charcoal/black */
  --color-text-secondary: #5e5e5a;/* Muted gray-brown */
  --color-accent: #9a2b25;        /* Deep academic crimson */
  --color-accent-hover: #b8362f;  /* Brighter crimson for hover */
  --color-border: #e6e3da;        /* Soft warm border */
  --color-focus: #2563eb;         /* High-contrast blue for focus outline */
  
  /* Layout */
  --max-width-text: 75ch;
  --max-width-container: 1080px;
  --spacing-unit: 1rem;
}

/* --- Base & Reset Rules --- */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--color-bg-base);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 1.1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text-primary);
  line-height: 1.25;
  margin-top: 1.8em;
  margin-bottom: 0.6em;
  font-weight: 700;
}

h1 {
  font-size: 2.5rem;
  margin-top: 0.5em;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.85rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.3em;
}

h3 {
  font-size: 1.45rem;
}

h4 {
  font-size: 1.25rem;
  font-family: var(--font-body);
  font-weight: 600;
}

p {
  margin-top: 0;
  margin-bottom: 1.5em;
}

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

a:hover {
  color: var(--color-accent-hover);
  text-decoration-color: var(--color-accent-hover);
}

a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

strong {
  font-weight: 600;
}

blockquote {
  margin: 2em 0;
  padding: 1.2em 1.5em;
  background-color: var(--color-bg-surface);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 4px 4px 0;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-style: italic;
  line-height: 1.5;
  color: var(--color-text-secondary);
}

blockquote p:last-child {
  margin-bottom: 0;
}

/* --- Layout Elements --- */
.container {
  width: 90%;
  max-width: var(--max-width-container);
  margin-left: auto;
  margin-right: auto;
}

/* Accessibility: Skip Link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: #fff;
  padding: 0.8em 1.5em;
  border-radius: 0 0 4px 4px;
  z-index: 9999;
  text-decoration: none;
  font-weight: bold;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  transition: top 0.25s ease;
}

.skip-link:focus {
  top: 0;
}

/* --- Header --- */
.site-header {
  background-color: var(--color-bg-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(41, 41, 39, 0.02);
}

.header-container {
  width: 90%;
  max-width: var(--max-width-container);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

@media (min-width: 768px) {
  .header-container {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.site-logo {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--color-text-primary);
  letter-spacing: -0.03em;
}

.logo-accent {
  color: var(--color-accent);
}

.site-nav {
  width: 100%;
}

@media (min-width: 768px) {
  .site-nav {
    width: auto;
  }
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--color-text-secondary);
  position: relative;
  padding: 0.3em 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-accent);
  transform: scaleX(0);
  transition: transform 0.2s ease;
}

.nav-link:hover {
  color: var(--color-text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}

.nav-link.active {
  color: var(--color-text-primary);
  font-weight: 600;
}

/* --- Main Layout --- */
.main-content-area {
  padding: 3rem 0;
  min-height: 70vh;
}

/* --- Footer --- */
.site-footer {
  background-color: var(--color-bg-surface);
  border-top: 1px solid var(--color-border);
  padding: 4rem 0 3rem 0;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.footer-container {
  width: 90%;
  max-width: var(--max-width-container);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

@media (min-width: 768px) {
  .footer-container {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }
}

.footer-brand {
  max-width: 400px;
}

.footer-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--color-text-primary);
  display: inline-block;
  margin-bottom: 0.5rem;
}

.footer-tagline {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.4;
}

.footer-meta {
  max-width: 500px;
  text-align: left;
}

@media (min-width: 768px) {
  .footer-meta {
    text-align: right;
  }
}

.footer-meta p {
  margin-bottom: 0.5rem;
}

.footer-note {
  font-size: 0.8rem;
  opacity: 0.8;
  line-height: 1.4;
}

/* --- Homepage Specific --- */
.hero-section {
  text-align: center;
  padding: 5rem 0 4.25rem;
  background:
    radial-gradient(circle at top, rgba(154, 43, 37, 0.13), rgba(154, 43, 37, 0) 42%),
    linear-gradient(180deg, var(--color-bg-surface) 0%, rgba(251,250,245,0.25) 55%, rgba(251,250,245,0) 100%);
  border-bottom: 1px solid rgba(230, 227, 218, 0.7);
  margin-top: -3rem;
  margin-bottom: 3rem;
}

.hero-title {
  font-size: 3rem;
  margin-top: 0;
  margin-bottom: 0.5rem;
  letter-spacing: -0.03em;
}

.hero-tagline {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: 1.35rem;
  color: var(--color-text-secondary);
  max-width: 760px;
  margin: 0 auto;
  line-height: 1.4;
}

.home-intro-section {
  max-width: var(--max-width-text);
  margin-bottom: 4rem;
}

.signal-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin: 2rem 0 0;
}

.signal-chip {
  border: 1px solid rgba(154, 43, 37, 0.18);
  background: rgba(255, 255, 255, 0.75);
  color: var(--color-text-primary);
  border-radius: 999px;
  padding: 0.55rem 0.95rem;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Grid layout on Homepage */
.exploration-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin: 3rem 0;
}

@media (min-width: 768px) {
  .exploration-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.exploration-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  box-shadow: 0 20px 40px rgba(41, 41, 39, 0.05);
}

.exploration-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 35px rgba(41, 41, 39, 0.08);
  border-color: rgba(154, 43, 37, 0.22);
}

.exploration-card h4 {
  margin-top: 0;
  font-size: 1.3rem;
  margin-bottom: 0.8rem;
}

.exploration-card p {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  flex-grow: 1;
  margin-bottom: 1.5rem;
}

.card-link {
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
}

.cta-button {
  display: inline-block;
  background-color: var(--color-accent);
  color: #fff;
  padding: 0.8em 1.8em;
  font-weight: 600;
  border-radius: 4px;
  text-decoration: none;
  transition: background-color 0.2s ease;
  margin-top: 1rem;
}

.cta-button:hover {
  background-color: var(--color-accent-hover);
  color: #fff;
}

/* Latest Feed Section */
.latest-journal-section {
  border-top: 2px solid var(--color-text-primary);
  padding-top: 3rem;
  margin-bottom: 3rem;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 2rem;
}

.section-title {
  font-size: 1.5rem;
  margin: 0;
}

.section-view-all {
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
}

.latest-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 768px) {
  .latest-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.latest-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.latest-card-image-link {
  display: block;
  overflow: hidden;
  border-radius: 14px;
  border: 1px solid var(--color-border);
  aspect-ratio: 16 / 10;
}

.latest-card-thumbnail {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.latest-card:hover .latest-card-thumbnail {
  transform: scale(1.04);
}

.latest-card-content {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.latest-card-date {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.latest-card-title {
  margin: 0;
  font-size: 1.25rem;
  line-height: 1.3;
}

.latest-card-title a {
  color: var(--color-text-primary);
  text-decoration: none;
}

.latest-card-title a:hover {
  color: var(--color-accent);
}

.latest-card-excerpt {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.5;
}

/* --- List Page Specific --- */
.list-page {
  max-width: var(--max-width-container);
}

.list-header {
  margin-bottom: 3rem;
  border-bottom: 2px solid var(--color-text-primary);
  padding-bottom: 1.5rem;
}

.list-title {
  margin: 0 0 0.5rem 0;
}

.list-description {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-style: italic;
  color: var(--color-text-secondary);
  margin: 0;
}

.list-intro-content {
  max-width: var(--max-width-text);
  margin-bottom: 3rem;
}

/* Articles Feed Grid */
.articles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

.article-card {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--color-border);
}

@media (min-width: 768px) {
  .article-card {
    flex-direction: row;
    align-items: flex-start;
  }
}

.card-image-link {
  display: block;
  width: 100%;
  max-height: 220px;
  overflow: hidden;
  border-radius: 14px;
  border: 1px solid var(--color-border);
  flex-shrink: 0;
}

@media (min-width: 768px) {
  .card-image-link {
    width: 280px;
    height: 175px;
  }
}

.card-thumbnail {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.article-card:hover .card-thumbnail {
  transform: scale(1.03);
}

.card-content {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex-grow: 1;
}

.card-date {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-title {
  margin: 0.2rem 0 0 0;
  font-size: 1.6rem;
  line-height: 1.25;
}

.card-title a {
  color: var(--color-text-primary);
  text-decoration: none;
}

.card-title a:hover {
  color: var(--color-accent);
}

.card-excerpt {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  margin: 0;
}

.card-read-more {
  align-self: flex-start;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  margin-top: 0.5rem;
}

/* --- Single Article Page Specific --- */
.single-article {
  max-width: var(--max-width-text);
}

.article-category {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.article-title {
  margin-top: 0.2rem;
  margin-bottom: 0.5rem;
  font-size: 2.75rem;
  letter-spacing: -0.02em;
}

.article-description {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: 1.35rem;
  line-height: 1.45;
  color: var(--color-text-secondary);
  margin-top: 0;
  margin-bottom: 1.5rem;
}

.article-meta {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
}

.meta-separator {
  margin: 0 0.5rem;
}

.article-featured-image-container {
  margin: 2rem 0 3rem 0;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.article-featured-image {
  width: 100%;
  height: auto;
  max-height: 450px;
  object-fit: cover;
  display: block;
}

.article-body-content {
  font-size: 1.15rem;
  line-height: 1.75;
}

.article-body-content p {
  margin-bottom: 1.8rem;
}

.article-body-content ul, 
.article-body-content ol {
  margin-top: 0;
  margin-bottom: 1.8rem;
  padding-left: 1.5rem;
}

.article-body-content li {
  margin-bottom: 0.6rem;
}

.article-body-content h3 {
  margin-top: 2.2em;
}

.article-footer-nav {
  margin-top: 4rem;
  border-top: 1px solid var(--color-border);
  padding-top: 2rem;
}

.back-link {
  font-weight: 600;
  text-decoration: none;
}

/* Grid Layout for Partners/General page elements */
.exploration-grid, .latest-grid {
  margin-top: 2rem;
}

@media (max-width: 767px) {
  .hero-section {
    padding: 4.25rem 0 3.5rem;
  }

  .hero-title {
    font-size: 2.35rem;
  }

  .hero-tagline {
    font-size: 1.15rem;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .nav-list {
    gap: 0.9rem 1.1rem;
  }
}