/* ========== Header ========== */
.header {
  position: sticky;
  top: 0;
  height: var(--header-height);
  z-index: 1000;
  background: color-mix(in srgb, var(--surface) 85%, transparent);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.header.scrolled {
  background: color-mix(in srgb, var(--surface) 95%, transparent);
  box-shadow: 0 4px 20px var(--shadow);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links {
  display: flex;
  gap: 0.5rem;
  list-style: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* ========== Drawer ========== */
.drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 300px;
  height: 100%;
  background: var(--surface);
  border-left: 1px solid var(--border);
  z-index: 1100;
  padding: 2rem;
  transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  visibility: hidden;
}

.drawer.active {
  right: 0;
  visibility: visible;
}

.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1050;
  opacity: 0;
  visibility: hidden;
  transition: 0.3s;
  backdrop-filter: blur(4px);
}

.drawer-overlay.active {
  opacity: 1;
  visibility: visible;
}

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

/* ========== Hero ========== */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: radial-gradient(ellipse at center, var(--accent-glass) 0%, transparent 70%);
  overflow: hidden;
}

#heroCanvas,
#heroCanvasFallback {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

#heroCanvasFallback {
  display: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ========== Responsive Grids ========== */
.responsive-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

/* ========== Blog Horizontal Scroll (Home) ========== */
.blog-container {
  display: flex;
  flex-direction: column;
  gap: 0;
  align-items: center;
}

.blog-title-section {
  width: 100%;
  position: static;
  top: auto;
  flex: none;
  text-align: center;
  margin-bottom: 4rem;
}

.blog-box {
  flex: 1;
  min-width: 0;
  position: relative;
}

.blog-scroll-wrapper {
  position: relative;
  margin-right: 0;
  margin-left: calc(50% - 50vw);
  width: calc(100% + (50vw - 50%));
  overflow-x: hidden;
  padding: 0;
}

.blog-scroll {
  display: flex;
  gap: 1.5rem;
  overflow-x: auto;
  border: 1px solid var(--accent);
  border-left: none;
  border-top-right-radius: var(--border-radius);
  border-bottom-right-radius: var(--border-radius);
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  padding-right: 1.5rem;
  padding-left: 4rem;
  padding-top: 2rem;
  padding-bottom: 2rem;
  scroll-snap-type: x mandatory;
  cursor: grab;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  touch-action: pan-x;
  mask-image: linear-gradient(to left, black 95%, transparent 100%);
  -webkit-mask-image: linear-gradient(to left, black 95%, transparent 100%);
}

.blog-scroll::-webkit-scrollbar {
  display: none;
}

.blog-scroll-hint {
  z-index: 10;
  padding: 0.25rem 0.75rem;
  color: var(--accent);
  background: var(--surface);
  border: 1px solid var(--accent-glass);
  border-radius: var(--border-radius-small);
  font-size: 0.8rem;
  font-weight: 500;
  text-align: center;
  opacity: 0;
  transition: opacity 0.5s var(--transition), transform 0.5s var(--transition);
  transform: translateY(10px);
}

.blog-scroll.is-dragging {
  scroll-snap-type: none;
  scroll-behavior: auto;
  cursor: grabbing;
}

.blog-scroll.is-dragging * {
  pointer-events: none;
  user-select: none;
  -webkit-user-select: none;
}

/* ========== Footer ========== */
.footer {
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--border);
  background: var(--surface-2);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
  position: relative;
  z-index: 1;
}

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

.footer-logo {
  font-size: 1.5rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1.5rem;
  display: block;
}

.footer-desc {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
  font-size: 1rem;
}

.footer-social {
  display: flex;
  gap: 1rem;
}

.footer-col h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1.5rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-col h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-hover));
  border-radius: 2px;
}

.footer-links {
  list-style: none;
}

.footer-link {
  margin-bottom: 0.75rem;
}

.footer-link a {
  color: var(--text-secondary);
  transition: var(--transition);
  padding: 0.5rem 0;
  display: inline-block;
  position: relative;
  font-weight: 500;
}

.footer-link a:hover,
.footer-link a:focus {
  color: var(--accent);
  transform: translateX(-4px);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.875rem;
  position: relative;
  z-index: 1;
}

.footer-bottom-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.footer-bottom-link {
  color: var(--text-secondary);
  transition: var(--transition);
  font-weight: 500;
}

.footer-bottom-link:hover,
.footer-bottom-link:focus {
  color: var(--accent);
}

/* ========== Responsive (Layout) ========== */
@media (max-width: 992px) {
  .nav {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
  .about-content,
  .contact-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .blog-container {
    flex-direction: column;
  }
  .blog-title-section {
    position: static;
    text-align: center;
    margin-bottom: 2rem;
    flex: auto;
  }
  .blog-scroll-wrapper {
    margin-left: 0;
    margin-right: 0;
    width: 100%;
  }
  .blog-scroll {
    padding-top: 1rem;
    padding-bottom: 2rem;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
    min-width: 100%;
    border-radius: 0;
    border-left: none;
    border-right: none;
  }
}

@media (max-width: 768px) {
  .header {
    height: var(--header-height-mobile);
  }
  .blog-scroll-wrapper {
    margin-left: -1rem;
    margin-right: -1rem;
    width: calc(100% + 2rem);
  }
  .blog-scroll {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}

@media (max-width: 480px) {
  .hero {
    min-height: 60vh;
  }
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .footer-col h3::after {
    right: 50%;
    transform: translateX(50%);
  }
  .footer-social {
    justify-content: center;
  }
}