/* Three-tone color scheme override */
:root {
  --color-dark-greyish-blue: #3a4750;
  --color-light-greyish-blue: #5a6a78;
  --color-light-grey: #e8e9ea;
  
  /* Override PicoCSS primary colors */
  --pico-primary: var(--color-dark-greyish-blue);
  --pico-primary-background: var(--color-dark-greyish-blue);
  --pico-primary-border: var(--color-dark-greyish-blue);
  --pico-primary-hover-background: var(--color-light-greyish-blue);
  --pico-primary-hover-border: var(--color-light-greyish-blue);
  --pico-primary-focus-background: var(--color-light-greyish-blue);
  --pico-primary-focus-border: var(--color-light-greyish-blue);
  
  /* Secondary colors using lighter shade */
  --pico-secondary-background: var(--color-light-greyish-blue);
  --pico-secondary-border: var(--color-light-greyish-blue);
  --pico-secondary-hover-background: var(--color-dark-greyish-blue);
  --pico-secondary-hover-border: var(--color-dark-greyish-blue);
}

[data-theme="dark"] {
  --color-dark-greyish-blue: #4a5663;
  --color-light-greyish-blue: #6a7a88;
  --color-light-grey: #d0d1d2;
  
  --pico-primary: var(--color-light-grey);
  --pico-primary-background: var(--color-dark-greyish-blue);
  --pico-primary-border: var(--color-dark-greyish-blue);
  --pico-primary-hover-background: var(--color-light-greyish-blue);
  --pico-primary-hover-border: var(--color-light-greyish-blue);
  --pico-primary-focus-background: var(--color-light-greyish-blue);
  --pico-primary-focus-border: var(--color-light-greyish-blue);
  
  --pico-secondary-background: var(--color-light-greyish-blue);
  --pico-secondary-border: var(--color-light-greyish-blue);
  --pico-secondary-hover-background: var(--color-dark-greyish-blue);
  --pico-secondary-hover-border: var(--color-dark-greyish-blue);
}

.hero {
  padding: calc(var(--pico-spacing) * 2);
  text-align: center;
  margin-bottom: var(--pico-spacing);
  min-height: calc(100vh - 120px); /* Full height minus header space */
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.hero h2 {
  margin-bottom: calc(var(--pico-spacing) * 1.5);
}

.hero blockquote {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.1rem;
  line-height: 1.7;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: calc(var(--pico-spacing) * 1.5);
  margin-top: calc(var(--pico-spacing) * 1.5);
}

.project-card {
  border: var(--pico-border-width) solid var(--pico-card-border-color);
  border-radius: var(--pico-border-radius);
  background-color: var(--pico-card-background-color);
  box-shadow: var(--pico-card-box-shadow);
  transition: all 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  border-color: var(--pico-primary-border);
}

.project-header {
  padding: var(--pico-spacing);
  border-bottom: var(--pico-border-width) solid var(--pico-card-border-color);
  background: linear-gradient(135deg, var(--color-dark-greyish-blue) 0%, var(--color-light-greyish-blue) 100%);
  border-radius: var(--pico-border-radius) var(--pico-border-radius) 0 0;
}

.project-title {
  color: var(--color-light-grey);
  font-weight: 600;
  font-size: 1.25rem;
  margin: 0;
  display: flex;
  align-items: center;
  gap: calc(var(--pico-spacing) * 0.5);
}

.project-title a {
  color: inherit;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: calc(var(--pico-spacing) * 0.5);
}

.project-title a:hover {
  text-decoration: underline;
}

.project-content {
  padding: var(--pico-spacing);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.project-description {
  margin-bottom: auto;
  line-height: 1.6;
  color: var(--pico-muted-color);
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--pico-spacing) * 0.5);
  margin-top: calc(var(--pico-spacing) * 1);
  padding-top: calc(var(--pico-spacing) * 1);
  border-top: 1px solid var(--pico-card-border-color);
}

.tech-tag {
  background: var(--pico-secondary-background);
  color: var(--pico-secondary-inverse);
  padding: calc(var(--pico-spacing) * 0.25) calc(var(--pico-spacing) * 0.5);
  border-radius: calc(var(--pico-border-radius) * 0.5);
  font-size: 0.8rem;
  font-weight: 500;
  white-space: nowrap;
}

/* Icon spacing using PicoCSS variables */
a[role="button"] svg,
h2 svg {
  margin-right: calc(var(--pico-spacing) * 0.5);
  vertical-align: middle;
  width: auto;
  height: 1em; /* Match the font size of the parent element */
}

h2 svg {
  height: 0.9em; /* Slightly smaller than font size for better visual balance */
}

h3 svg {
  height: 0.85em; /* Scale appropriately for h3 elements */
}

kbd {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 150px;
  display: inline-block;
  font-size: 0.875rem;
}

.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--pico-nav-link-spacing-vertical) var(--pico-nav-link-spacing-horizontal);
  color: var(--pico-nav-link-color);
}

.mobile-nav-toggle:hover {
  color: var(--pico-nav-link-hover-color);
}

.nav-menu {
  display: flex;
}

.nav-menu.mobile-hidden {
  display: none;
}

@media (max-width: 768px) {
  .mobile-nav-toggle {
    display: block;
  }

  .hero {
    min-height: calc(100vh - 100px); /* Adjust for smaller header on mobile */
    padding: calc(var(--pico-spacing) * 1.5);
  }

  .hero blockquote {
    font-size: 1rem;
    line-height: 1.6;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--pico-card-background-color);
    border: var(--pico-border-width) solid var(--pico-card-border-color);
    border-radius: var(--pico-border-radius);
    box-shadow: var(--pico-card-box-shadow);
    padding: var(--pico-spacing);
    margin-top: calc(var(--pico-spacing) * 0.5);
    flex-direction: column;
    z-index: 99;
  }

  .nav-menu.active {
    display: flex;
  }

  nav {
    position: relative;
  }

  /* Use PicoCSS grid utility on mobile */
  .project-grid {
    grid-template-columns: 1fr;
    gap: var(--pico-spacing);
  }

  .project-card:hover {
    transform: none;
  }

  /* Technology tags responsive sizing */
  .tech-tag {
    font-size: calc(var(--pico-font-size) * 0.75);
  }
}

/* Very small screens */
@media (max-width: 480px) {
  .tech-tag {
    font-size: calc(var(--pico-font-size) * 0.7);
  }

  .project-grid {
    gap: calc(var(--pico-spacing) * 0.75);
  }

  .nav-menu li {
    width: 100%;
    text-align: center;
  }

  .nav-menu a {
    display: block;
    padding: var(--pico-nav-link-spacing-vertical) var(--pico-nav-link-spacing-horizontal);
  }
}

/* Custom button colors using three-tone scheme */
a[role="button"].email-btn {
  --pico-primary-background: var(--color-light-greyish-blue);
  --pico-primary-border: var(--color-light-greyish-blue);
  --pico-primary-hover-background: var(--color-dark-greyish-blue);
  --pico-primary-hover-border: var(--color-dark-greyish-blue);
  --pico-primary-focus-background: var(--color-dark-greyish-blue);
  --pico-primary-focus-border: var(--color-dark-greyish-blue);
}

a[role="button"].linkedin-btn {
  --pico-primary-background: var(--color-dark-greyish-blue);
  --pico-primary-border: var(--color-dark-greyish-blue);
  --pico-primary-hover-background: var(--color-light-greyish-blue);
  --pico-primary-hover-border: var(--color-light-greyish-blue);
  --pico-primary-focus-background: var(--color-light-greyish-blue);
  --pico-primary-focus-border: var(--color-light-greyish-blue);
}

#cycling-title {
  min-height: 1.5em; 
  font-weight: 500;
  color: var(--pico-muted-color);
}

#cycling-title::after {
  content: '|';
  animation: blink 1s infinite;
  color: var(--pico-muted-color);
  margin-left: 2px;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  border-color: var(--color-light-grey);
}

.tech-tag {
  background: var(--color-light-grey);
  color: var(--color-dark-greyish-blue);
  padding: calc(var(--pico-spacing) * 0.25) calc(var(--pico-spacing) * 0.5);
  border-radius: calc(var(--pico-border-radius) * 0.5);
  font-size: 0.8rem;
  font-weight: 500;
  white-space: nowrap;
}

[data-theme="dark"] .tech-tag {
  background: var(--color-light-greyish-blue);
  color: var(--color-light-grey);
}

nav a {
  color: var(--pico-muted-color);
}

nav a:hover {
  color: var(--color-light-greyish-blue);
}

[data-theme="dark"] nav a {
  color: var(--pico-muted-color);
}

[data-theme="dark"] nav a:hover {
  color: var(--color-light-greyish-blue);
}

/* Override any remaining primary inverse colors */
[data-theme="dark"] .project-title {
  color: var(--color-light-grey);
}