/* === Base Settings - Brutalism Style ============================================= */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Courier New', 'Courier', monospace, system-ui;
  line-height: 1.5;
  color: #0a0a0a;
  background: 
    repeating-linear-gradient(
      0deg,
      #ffffff 0px,
      #ffffff 2px,
      #fafafa 2px,
      #fafafa 4px
    );
  font-weight: 600;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 10% 20%, rgba(0, 102, 204, 0.03) 0%, transparent 20%),
    radial-gradient(circle at 90% 80%, rgba(0, 255, 255, 0.03) 0%, transparent 20%),
    radial-gradient(circle at 50% 50%, rgba(0, 102, 204, 0.02) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
}

/* === Links - BRUTALISM ===================================== */
a {
  color: #0066cc;
  font-weight: 700;
}

a:focus {
  outline: 4px solid #00ffff;
  outline-offset: 2px;
}

/* === Selection - BRUTALISM ================================= */
::selection {
  background: #00ffff;
  color: #000000;
  text-shadow: none;
}

::-moz-selection {
  background: #00ffff;
  color: #000000;
  text-shadow: none;
}

/* === Header & Navigation - BRUTALISM ===================================================== */
header {
  padding: 0;
  background: #0066cc;
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 1);
  position: sticky;
  top: 0;
  z-index: 100;
  border: 6px solid #000000;
  transform: rotate(-0.5deg);
  margin: 10px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.header-container {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0;
  align-items: stretch;
  transform: rotate(0.5deg);
  background: linear-gradient(180deg, #0066cc 0%, #0055aa 100%);
}

.header-left {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-right: 6px solid #000000;
  background: #ffffff;
}

.logo {
  font-size: 2rem;
  font-weight: 900;
  color: #000000;
  text-decoration: none;
  padding: 1.5rem 2rem;
  border: none;
  text-transform: uppercase;
  letter-spacing: -2px;
  background: #00ffff;
  border-bottom: 6px solid #000000;
  transition: all 0.1s ease;
  position: relative;
}

.logo:hover {
  background: #ffff00;
  letter-spacing: 0px;
}

.logo::after {
  content: '■';
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  color: #ff0066;
}

.header-contact {
  display: flex;
  align-items: stretch;
  gap: 0;
  font-size: 0.85rem;
  background: #ffffff;
}

.header-contact a {
  color: #000000;
  text-decoration: none;
  padding: 1rem 1.5rem;
  border: none;
  border-right: 6px solid #000000;
  transition: all 0.1s ease;
  background: #ffffff;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.header-contact a:last-child {
  border-right: none;
}

.header-contact a:hover {
  background: #0066cc;
  color: #ffffff;
}

#top_menus {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: stretch;
  gap: 0;
  list-style: none;
  padding: 1rem;
}

#top_menus li {
  border: 5px solid #000000;
  margin: 5px;
  background: #ffffff;
  transition: all 0.1s ease;
  transform: skew(-5deg);
}

#top_menus li:hover {
  transform: skew(-5deg) translateY(-3px);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 1);
}

#top_menus .nav-link {
  text-decoration: none;
  font-weight: 900;
  color: #000000;
  padding: 0.8rem 1.5rem;
  border: none;
  transition: all 0.1s ease;
  background: transparent;
  display: block;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.9rem;
  transform: skew(5deg);
}

#top_menus li:hover .nav-link {
  color: #ffffff;
  background: #0066cc;
}

#top_menus .current-menu-item,
#top_menus .current_page_item,
#top_menus .current_page_parent {
  background: #00ffff;
}

#top_menus .current-menu-item .nav-link,
#top_menus .current_page_item .nav-link,
#top_menus .current_page_parent .nav-link {
  color: #000000;
}


/* === Hero Wave Section ========================================= */
.hero-wave {
  height: 250px;
  background: 
    repeating-linear-gradient(
      45deg,
      #0066cc 0px,
      #0066cc 20px,
      #0088ff 20px,
      #0088ff 40px
    ),
    radial-gradient(circle at 20% 50%, #00ffff 2px, transparent 2px),
    radial-gradient(circle at 60% 70%, #ffffff 3px, transparent 3px),
    radial-gradient(circle at 80% 30%, #00ffff 2px, transparent 2px);
  background-size: 
    100% 100%,
    50px 50px,
    70px 70px,
    60px 60px;
  border-top: 8px solid #000000;
  border-bottom: 8px solid #000000;
  position: relative;
  overflow: hidden;
  margin: 20px 10px;
  box-shadow: inset 0 0 50px rgba(0, 0, 0, 0.3);
}

.hero-wave::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 200%;
  height: 100%;
  background: 
    repeating-linear-gradient(
      90deg,
      transparent 0px,
      transparent 80px,
      rgba(255, 255, 255, 0.1) 80px,
      rgba(255, 255, 255, 0.1) 100px
    );
  animation: wave-slide 20s linear infinite;
}

.hero-wave::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 60%;
  background: 
    radial-gradient(ellipse at 10% 100%, #0066cc 0%, transparent 50%),
    radial-gradient(ellipse at 30% 100%, #0088ff 0%, transparent 50%),
    radial-gradient(ellipse at 50% 100%, #0066cc 0%, transparent 50%),
    radial-gradient(ellipse at 70% 100%, #0088ff 0%, transparent 50%),
    radial-gradient(ellipse at 90% 100%, #0066cc 0%, transparent 50%);
  background-size: 20% 100%;
  background-repeat: no-repeat;
  background-position: 0% 100%, 25% 100%, 50% 100%, 75% 100%, 100% 100%;
  opacity: 0.6;
}

@keyframes wave-slide {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(50%);
  }
}

/* === Post List - BRUTALISM ===================================== */
.post-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2.5rem;
  max-width: 1200px;
  margin: 4rem auto;
  padding: 0 1rem;
}

/* === Post Card - BRUTALISM ================================== */
.post-item {
  background: #ffffff;
  border-radius: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.1s ease;
  border: 6px solid #000000;
  box-shadow: 10px 10px 0 rgba(0, 0, 0, 1);
  transform: rotate(0deg);
}

.post-item:hover {
  transform: rotate(-1deg) translateY(-5px);
  box-shadow: 15px 15px 0 rgba(0, 0, 0, 1);
  border-color: #0066cc;
}

/* Featured Image */
.post-featured-image {
  border-bottom: 6px solid #000000;
  position: relative;
  overflow: hidden;
}

.post-featured-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    45deg,
    transparent 0px,
    transparent 10px,
    rgba(0, 102, 204, 0.1) 10px,
    rgba(0, 102, 204, 0.1) 20px
  );
  pointer-events: none;
}

.post-featured-image img {
  width: 100%;
  height: auto;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
  filter: contrast(1.2) saturate(0.8);
}

/* Title */
.post-item h3 {
  font-size: 1.3rem;
  margin: 1.5rem 1.5rem 1rem;
  line-height: 1.3;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -1px;
}

.post-item h3 a {
  color: #000000;
  text-decoration: none;
  transition: color 0.1s ease;
  position: relative;
  display: inline-block;
}

.post-item h3 a::before {
  content: '▶';
  position: absolute;
  left: -20px;
  opacity: 0;
  transition: all 0.1s ease;
  color: #0066cc;
}

.post-item h3 a:hover::before {
  opacity: 1;
  left: -25px;
}

.post-item h3 a:hover {
  color: #0066cc;
}

/* Excerpt */
.post-item p {
  margin: 0 1.5rem 1.5rem;
  color: #000000;
  flex: 1 0 auto;
  font-weight: 500;
  line-height: 1.6;
}

.post-item .post-date {
  font-size: 0.8rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: #666666;
  margin: 0 1.5rem 0.5rem;
}

/* Read More Link */
.post-item > a:last-of-type {
  align-self: flex-start;
  margin: 0 1.5rem 1.5rem;
  background: #0066cc;
  color: #ffffff;
  text-decoration: none;
  padding: 0.8rem 1.5rem;
  font-size: 0.875rem;
  border: 4px solid #000000;
  transition: all 0.1s ease;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 1);
}

.post-item > a:last-of-type:hover {
  background: #00ffff;
  color: #000000;
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 rgba(0, 0, 0, 1);
}

/* === Pagination - BRUTALISM ===================================== */
nav.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-bottom: 3rem;
  font-weight: 900;
}

.page-numbers {
  display: inline-block;
  padding: 0.8rem 1.2rem;
  border: 5px solid #000000;
  border-radius: 0;
  text-decoration: none;
  color: #000000;
  background: #ffffff;
  transition: all 0.1s ease;
  font-weight: 900;
  text-transform: uppercase;
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 1);
}

.page-numbers.current,
.page-numbers:hover {
  background: #0066cc;
  color: #ffffff;
  border-color: #000000;
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 rgba(0, 0, 0, 1);
}

.next.page-numbers,
.prev.page-numbers {
  border-color: #000000;
  color: #000000;
  background: #00ffff;
  font-weight: 900;
}

.next.page-numbers:hover,
.prev.page-numbers:hover {
  background: #0066cc;
  color: #ffffff;
  border-color: #000000;
}

/* === Breadcrumbs - BRUTALISM ================================== */
.breadcrumbs {
  max-width: 1200px;
  margin: 2rem auto 0;
  padding: 1rem;
  font-size: 0.85rem;
  color: #000000;
  background: #ffffff;
  border: 5px solid #000000;
  border-left: none;
  border-right: none;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.breadcrumbs a {
  color: #0066cc;
  text-decoration: none;
  transition: color 0.1s ease;
  padding: 0.2rem 0.5rem;
  background: #f0f0f0;
  border: 2px solid #000000;
  margin: 0 2px;
}

.breadcrumbs a:hover {
  color: #ffffff;
  background: #0066cc;
}

.breadcrumbs span {
  color: #000000;
}

/* === Page Content - BRUTALISM ================================== */
.page-content {
  max-width: 800px;
  margin: 2rem auto 4rem;
  padding: 2rem;
  background: #ffffff;
  border: 6px solid #000000;
  box-shadow: 15px 15px 0 rgba(0, 0, 0, 1);
}

/* Featured Image */
.page-content .post-featured-image {
  border: 6px solid #000000;
  margin-bottom: 2rem;
  position: relative;
}

.page-content .post-featured-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    45deg,
    transparent 0px,
    transparent 10px,
    rgba(0, 102, 204, 0.1) 10px,
    rgba(0, 102, 204, 0.1) 20px
  );
  pointer-events: none;
}

.page-content .post-featured-image img {
  width: 100%;
  height: auto;
  display: block;
  filter: contrast(1.2) saturate(0.8);
}

/* Page Title */
.page-content h1 {
  font-size: 2.5rem;
  margin: 0 0 2rem;
  line-height: 1.2;
  color: #000000;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -2px;
  border-bottom: 8px solid #0066cc;
  padding-bottom: 1rem;
}

/* Post Meta */
.page-content .post-meta {
  margin: 0 0 2rem;
  padding: 0.8rem 1.2rem;
  background: #00ffff;
  border: 4px solid #000000;
  display: inline-block;
  transform: rotate(-1deg);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.3);
}

.page-content .post-meta .post-date {
  font-size: 0.9rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: #000000;
  margin: 0;
}

/* Page Content */
.page-content .content {
  color: #000000;
  font-weight: 500;
}

.page-content .content p {
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.page-content .content h2 {
  margin: 2.5rem 0 1rem;
  font-size: 1.9rem;
  color: #000000;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -1px;
  background: #00ffff;
  padding: 0.5rem 1rem;
  border: 5px solid #000000;
  display: inline-block;
}

.page-content .content h3 {
  margin: 2rem 0 0.75rem;
  font-size: 1.5rem;
  color: #000000;
  font-weight: 900;
  text-transform: uppercase;
  border-left: 8px solid #0066cc;
  padding-left: 1rem;
}

.page-content .content ul,
.page-content .content ol {
  margin: 1rem 0 1.5rem 2rem;
}

.page-content .content li {
  margin-bottom: 0.75rem;
  font-weight: 500;
}

.page-content .content li::marker {
  color: #0066cc;
  font-weight: 900;
}

.page-content .content img {
  max-width: 100%;
  height: auto;
  border: 6px solid #000000;
  margin: 2rem 0;
  display: block;
  box-shadow: 10px 10px 0 rgba(0, 0, 0, 0.3);
}

/* === Footer - BRUTALISM ======================================== */
footer {
  background: #0066cc;
  color: #ffffff;
  padding: 3rem 0 2rem;
  border-top: 8px solid #000000;
  margin: 20px 10px 10px;
  border: 6px solid #000000;
  box-shadow: 10px 10px 0 rgba(0, 0, 0, 1);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-column h4 {
  font-size: 1.4rem;
  margin-bottom: 1.5rem;
  color: #00ffff;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -1px;
  border-bottom: 4px solid #ffffff;
  padding-bottom: 0.5rem;
  display: inline-block;
}

.footer-column p {
  color: #ffffff;
  margin-bottom: 1rem;
  line-height: 1.6;
  font-weight: 500;
}

.footer-menu {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  list-style: none;
}

.footer-menu a {
  color: #ffffff;
  text-decoration: none;
  transition: all 0.1s ease;
  padding: 0.5rem 0.8rem;
  background: transparent;
  border: 3px solid transparent;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 1px;
}

.footer-menu a:hover {
  color: #000000;
  background: #00ffff;
  border-color: #000000;
  padding-left: 1.2rem;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 5px solid #ffffff;
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-bottom a {
  color: #00ffff;
  text-decoration: none;
  transition: color 0.1s ease;
  font-weight: 900;
}

.footer-bottom a:hover {
  color: #ffff00;
}

/* === Contact Info - BRUTALISM ================================= */
.contact-info {
  margin-top: 1rem;
}

.contact-info p {
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #ffffff;
  font-weight: 600;
  font-size: 0.95rem;
}

.contact-info p span {
  font-weight: 900;
  color: #00ffff;
  text-transform: uppercase;
}

/* === Philosophy Block - BRUTALISM =============================== */
.philosophy-block {
  background: #ffffff;
  padding: 4rem 0;
  border-top: 8px solid #000000;
  border-bottom: 8px solid #000000;
  margin: 20px 10px;
  position: relative;
}

.philosophy-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 5% 15%, rgba(0, 102, 204, 0.05) 0%, transparent 25%),
    radial-gradient(circle at 95% 85%, rgba(0, 255, 255, 0.05) 0%, transparent 25%);
  pointer-events: none;
}

.philosophy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  position: relative;
}

.philosophy-visual {
  position: relative;
  border: 6px solid #000000;
  box-shadow: 15px 15px 0 rgba(0, 0, 0, 1);
  overflow: hidden;
  transform: rotate(-2deg);
  transition: all 0.2s ease;
}

.philosophy-visual:hover {
  transform: rotate(0deg) translateY(-5px);
  box-shadow: 20px 20px 0 rgba(0, 0, 0, 1);
}

.philosophy-visual img {
  width: 100%;
  height: auto;
  display: block;
  filter: contrast(1.3) saturate(0.9);
}

.visual-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    45deg,
    transparent 0px,
    transparent 15px,
    rgba(0, 102, 204, 0.15) 15px,
    rgba(0, 102, 204, 0.15) 30px
  );
  pointer-events: none;
}

.philosophy-content h2 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  color: #000000;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -2px;
  background: #00ffff;
  padding: 0.8rem 1.5rem;
  display: inline-block;
  border: 6px solid #000000;
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 1);
  transform: rotate(-1deg);
}

.philosophy-lead {
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  color: #000000;
  border-left: 8px solid #0066cc;
  padding-left: 1.5rem;
  background: #f0f0f0;
  padding: 1rem 1.5rem;
  border: 5px solid #000000;
  border-left: 12px solid #0066cc;
}

.philosophy-content > p {
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 2rem;
  color: #000000;
  font-weight: 600;
}

.philosophy-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.pillar {
  background: #ffffff;
  border: 5px solid #000000;
  padding: 1.5rem 1rem;
  text-align: center;
  transition: all 0.2s ease;
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 1);
  position: relative;
}

.pillar:hover {
  transform: translateY(-5px);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 1);
  background: #00ffff;
}

.pillar-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 0.75rem;
  filter: grayscale(100%);
}

.pillar:hover .pillar-icon {
  filter: grayscale(0%);
}

.pillar h3 {
  font-size: 1.2rem;
  font-weight: 900;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  color: #000000;
  letter-spacing: 1px;
}

.pillar p {
  font-size: 0.85rem;
  font-weight: 600;
  color: #000000;
  line-height: 1.4;
}

.pillar .card-number {
  position: absolute;
  top: -15px;
  left: -15px;
  width: 40px;
  height: 40px;
  background: #0066cc;
  border: 4px solid #000000;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  color: #ffffff;
  font-size: 1.2rem;
}

/* === Ecosystem Block - BRUTALISM ============================ */
.ecosystem-block {
  background: #f0f0f0;
  padding: 4rem 0;
  border-top: 8px solid #000000;
  border-bottom: 8px solid #000000;
  margin: 0 10px 20px;
  position: relative;
}

.ecosystem-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    repeating-linear-gradient(
      90deg,
      transparent 0px,
      transparent 100px,
      rgba(0, 0, 0, 0.02) 100px,
      rgba(0, 0, 0, 0.02) 101px
    ),
    repeating-linear-gradient(
      0deg,
      transparent 0px,
      transparent 100px,
      rgba(0, 0, 0, 0.02) 100px,
      rgba(0, 0, 0, 0.02) 101px
    );
  pointer-events: none;
}

.ecosystem-header {
  text-align: center;
  margin-bottom: 3.5rem;
  position: relative;
}

.ecosystem-header h2 {
  font-size: 2.8rem;
  margin-bottom: 1.5rem;
  color: #000000;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -2px;
  background: #00ffff;
  padding: 1rem 2rem;
  display: inline-block;
  border: 6px solid #000000;
  box-shadow: 12px 12px 0 rgba(0, 0, 0, 1);
  transform: rotate(-1deg);
}

.ecosystem-header p {
  max-width: 700px;
  margin: 2rem auto 0;
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.7;
  color: #000000;
}

.ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
  position: relative;
}

.ecosystem-card {
  background: #ffffff;
  border: 6px solid #000000;
  box-shadow: 10px 10px 0 rgba(0, 0, 0, 1);
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.ecosystem-card:hover {
  transform: translateY(-8px);
  box-shadow: 15px 15px 0 rgba(0, 0, 0, 1);
  border-color: #0066cc;
}

.card-number {
  position: absolute;
  top: 15px;
  left: 15px;
  width: 60px;
  height: 60px;
  background: #0066cc;
  border: 5px solid #000000;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  color: #ffffff;
  font-size: 1.5rem;
  z-index: 10;
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.4);
  transform: rotate(-5deg);
  transition: all 0.2s ease;
}

.ecosystem-card:hover .card-number {
  background: #00ffff;
  color: #000000;
  transform: rotate(0deg) scale(1.1);
}

.card-image {
  border-bottom: 6px solid #000000;
  position: relative;
  overflow: hidden;
  height: 220px;
}

.card-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    -45deg,
    transparent 0px,
    transparent 8px,
    rgba(0, 102, 204, 0.1) 8px,
    rgba(0, 102, 204, 0.1) 16px
  );
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.ecosystem-card:hover .card-image::after {
  opacity: 1;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: contrast(1.2) saturate(0.85);
  transition: all 0.3s ease;
}

.ecosystem-card:hover .card-image img {
  filter: contrast(1.3) saturate(1);
  transform: scale(1.05);
}

.ecosystem-card h3 {
  font-size: 1.3rem;
  margin: 1.5rem 1.5rem 1rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -1px;
  color: #000000;
  line-height: 1.3;
}

.ecosystem-card p {
  margin: 0 1.5rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.7;
  color: #000000;
}

/* === Recommended Articles Section - BRUTALISM ================= */
.recommended-articles {
  background: #f0f0f0;
  padding: 4rem 0;
  border-top: 8px solid #000000;
  border-bottom: 8px solid #000000;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: #000000;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -2px;
  background: #00ffff;
  padding: 1rem 2rem;
  display: inline-block;
  border: 6px solid #000000;
  box-shadow: 10px 10px 0 rgba(0, 0, 0, 1);
  transform: rotate(-1deg);
}

.section-header p {
  color: #000000;
  max-width: 600px;
  margin: 2rem auto 0;
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.6;
}

/* === Category Description ===================================== */
.category-description {
  margin-top: 1.5rem;
  padding: 1.5rem;
  background: #f0f0f0;
  border: 4px solid #000000;
  border-left: 8px solid #0066cc;
  font-weight: 600;
  line-height: 1.7;
}

/* === 404 Page - BRUTALISM ===================================== */
.error-404 {
  text-align: center;
  padding: 5rem 2rem;
  background: #ffffff;
  margin: 2rem;
  border: 8px solid #000000;
  box-shadow: 15px 15px 0 rgba(0, 0, 0, 1);
}

.error-404 h1 {
  font-size: 8rem;
  margin-bottom: 1rem;
  color: #0066cc;
  font-weight: 900;
  letter-spacing: -5px;
  text-shadow: 8px 8px 0 rgba(0, 0, 0, 0.2);
  transform: rotate(-3deg);
  display: inline-block;
}

.error-404 h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  color: #000000;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -1px;
  background: #00ffff;
  padding: 0.5rem 2rem;
  display: inline-block;
  border: 5px solid #000000;
}

.error-404 p {
  margin-bottom: 2rem;
  color: #000000;
  font-weight: 600;
  font-size: 1.1rem;
}

.error-404 a,
.error-404 .btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: #0066cc;
  color: #ffffff;
  text-decoration: none;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: 5px solid #000000;
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 1);
  transition: all 0.1s ease;
  font-size: 1rem;
}

.error-404 a:hover,
.error-404 .btn:hover {
  background: #00ffff;
  color: #000000;
  transform: translate(-2px, -2px);
  box-shadow: 10px 10px 0 rgba(0, 0, 0, 1);
}

/* === Responsive Design - BRUTALISM ========================== */
@media (max-width: 768px) {
  /* Philosophy Block Responsive */
  .philosophy-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .philosophy-visual {
    transform: rotate(0deg);
  }
  
  .philosophy-content h2 {
    font-size: 1.8rem;
    padding: 0.6rem 1rem;
    letter-spacing: -1px;
  }
  
  .philosophy-lead {
    font-size: 1rem;
  }
  
  .philosophy-pillars {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  /* Ecosystem Block Responsive */
  .ecosystem-header h2 {
    font-size: 2rem;
    padding: 0.8rem 1.5rem;
  }
  
  .ecosystem-header p {
    font-size: 1rem;
  }
  
  .ecosystem-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .card-number {
    width: 50px;
    height: 50px;
    font-size: 1.3rem;
  }
  
  .card-image {
    height: 200px;
  }

  header {
    margin: 5px;
  }
  
  .header-container {
    grid-template-columns: 1fr;
    gap: 0;
  }
  
  .header-left {
    border-right: none;
    border-bottom: 6px solid #000000;
  }
  
  .logo {
    font-size: 1.5rem;
    padding: 1rem 1.5rem;
  }
  
  .header-contact {
    flex-direction: column;
    gap: 0;
  }
  
  .header-contact a {
    border-right: none;
    border-bottom: 6px solid #000000;
  }
  
  .header-contact a:last-child {
    border-bottom: none;
  }
  
  #top_menus {
    justify-content: center;
    padding: 0.5rem;
  }
  
  #top_menus li {
    margin: 3px;
  }
  
  .hero-wave {
    height: 180px;
    margin: 10px 5px;
  }
  
  .post-list {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 0 0.5rem;
  }
  
  .post-item {
    box-shadow: 8px 8px 0 rgba(0, 0, 0, 1);
  }
  
  .post-item:hover {
    box-shadow: 10px 10px 0 rgba(0, 0, 0, 1);
  }
  
  .page-content {
    margin: 1rem;
    padding: 1.5rem;
    box-shadow: 10px 10px 0 rgba(0, 0, 0, 1);
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  footer {
    margin: 10px 5px 5px;
  }
  
  .section-header h2 {
    font-size: 2rem;
    padding: 0.8rem 1.5rem;
  }
}

@media (max-width: 480px) {
  /* Philosophy Block Small Screens */
  .philosophy-block {
    padding: 2rem 0;
    margin: 10px 5px;
  }
  
  .philosophy-content h2 {
    font-size: 1.5rem;
    padding: 0.5rem 0.8rem;
    border-width: 4px;
    box-shadow: 5px 5px 0 rgba(0, 0, 0, 1);
  }
  
  .philosophy-lead {
    font-size: 0.95rem;
    border-width: 3px;
    padding: 0.8rem 1rem;
  }
  
  .philosophy-content > p {
    font-size: 0.9rem;
  }
  
  .pillar {
    border-width: 3px;
    padding: 1rem 0.8rem;
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 1);
  }
  
  .pillar-icon {
    font-size: 2rem;
  }
  
  /* Ecosystem Block Small Screens */
  .ecosystem-block {
    padding: 2rem 0;
    margin: 0 5px 10px;
  }
  
  .ecosystem-header h2 {
    font-size: 1.5rem;
    padding: 0.6rem 1rem;
    border-width: 4px;
    box-shadow: 8px 8px 0 rgba(0, 0, 0, 1);
  }
  
  .ecosystem-header p {
    font-size: 0.95rem;
  }
  
  .ecosystem-card {
    border-width: 4px;
    box-shadow: 6px 6px 0 rgba(0, 0, 0, 1);
  }
  
  .card-number {
    width: 45px;
    height: 45px;
    font-size: 1.2rem;
    border-width: 3px;
    top: 10px;
    left: 10px;
  }
  
  .card-image {
    height: 180px;
    border-bottom-width: 4px;
  }
  
  .ecosystem-card h3 {
    font-size: 1.1rem;
    margin: 1rem 1rem 0.75rem;
  }
  
  .ecosystem-card p {
    font-size: 0.9rem;
    margin: 0 1rem 1rem;
  }

  body {
    font-size: 0.95rem;
  }
  
  header {
    border-width: 4px;
    box-shadow: 5px 5px 0 rgba(0, 0, 0, 1);
  }
  
  .logo {
    font-size: 1.3rem;
    padding: 0.8rem 1rem;
    letter-spacing: -1px;
  }
  
  .logo::after {
    font-size: 1.2rem;
  }
  
  .header-contact a {
    font-size: 0.75rem;
    padding: 0.8rem 1rem;
  }
  
  #top_menus li {
    border-width: 3px;
  }
  
  #top_menus .nav-link {
    padding: 0.6rem 1rem;
    font-size: 0.8rem;
  }
  
  .hero-wave {
    height: 150px;
  }
  
  .post-item {
    border-width: 4px;
    box-shadow: 6px 6px 0 rgba(0, 0, 0, 1);
  }
  
  .post-item h3 {
    font-size: 1.1rem;
    margin: 1rem 1rem 0.75rem;
    letter-spacing: 0;
  }
  
  .post-item p {
    margin: 0 1rem 1rem;
  }
  
  .post-item > a:last-of-type {
    margin: 0 1rem 1rem;
    padding: 0.6rem 1.2rem;
    font-size: 0.8rem;
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 1);
  }
  
  .page-content {
    border-width: 4px;
    padding: 1rem;
  }
  
  .page-content h1 {
    font-size: 1.75rem;
    letter-spacing: -1px;
    border-bottom-width: 5px;
  }
  
  .page-content .content h2 {
    font-size: 1.4rem;
    padding: 0.4rem 0.8rem;
    border-width: 3px;
  }
  
  .page-content .content h3 {
    font-size: 1.2rem;
    border-left-width: 5px;
  }
  
  .page-numbers {
    padding: 0.6rem 0.9rem;
    border-width: 3px;
    box-shadow: 3px 3px 0 rgba(0, 0, 0, 1);
  }
  
  .section-header h2 {
    font-size: 1.6rem;
    padding: 0.6rem 1rem;
    border-width: 4px;
    box-shadow: 6px 6px 0 rgba(0, 0, 0, 1);
  }
  
  .section-header p {
    font-size: 0.95rem;
  }
  
  footer {
    border-width: 4px;
    box-shadow: 6px 6px 0 rgba(0, 0, 0, 1);
  }
  
  .error-404 {
    border-width: 5px;
    box-shadow: 10px 10px 0 rgba(0, 0, 0, 1);
  }
  
  .error-404 h1 {
    font-size: 5rem;
    letter-spacing: -3px;
  }
  
  .error-404 h2 {
    font-size: 1.5rem;
    padding: 0.4rem 1rem;
    border-width: 3px;
  }
}