/* ============================================================
   library.css — Styles for the Skills Library section
   ============================================================ */

/* Page header */
.library-header {
  padding-top: var(--space-12);
  padding-bottom: var(--space-8);
}

.library-header h1 {
  margin-bottom: var(--space-4);
}

.library-intro {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 52ch;
  margin-bottom: var(--space-4);
}

.library-github-link {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  letter-spacing: 0.02em;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 2px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.library-github-link:hover {
  color: var(--color-text);
  border-color: var(--color-text);
}


/* ---- Search bar ---- */
.search-bar {
  margin-bottom: var(--space-6);
}

.search-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  outline: none;
  transition: border-color var(--transition-fast);
}

.search-input::placeholder {
  color: var(--color-text-muted);
}

.search-input:focus {
  border-color: var(--color-text-muted);
}


/* ---- Tag filters ---- */
.tag-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.tag-filter {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  padding: var(--space-1) var(--space-3);
  border-radius: 3px;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: background-color var(--transition-fast),
              color var(--transition-fast),
              border-color var(--transition-fast);
}

.tag-filter:hover {
  border-color: var(--color-text-muted);
  color: var(--color-text);
}

/* Active state — tag is selected */
.tag-filter.is-active {
  background-color: var(--color-text);
  border-color: var(--color-text);
  color: var(--color-bg);
}

/* Label above the tag row */
.tag-filters-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}


/* ---- Results count ---- */
.results-count {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  min-height: 1.4rem; /* prevents layout shift when text appears */
}


/* ---- Skills grid ---- */
.skills-grid {
  display: grid;
  grid-template-columns: 1fr;   /* single column on mobile */
  gap: var(--space-6);
}

@media (min-width: 600px) {
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);  /* 2 columns on desktop */
  }
}


/* ---- Skill card ---- */
.skill-card {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transition: border-color var(--transition-base);
}

.skill-card:hover {
  border-color: var(--color-text-muted);
}


/* Tags on each card */
.skill-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.skill-tag {
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  padding: 2px var(--space-2);
  border-radius: 3px;
  font-weight: 500;
}

/* Use-case tag — warm amber tone */
.tag-use-case {
  background-color: #FEF6E7;
  color: #8A5A00;
}

/* Implementation tag — muted green tone */
.tag-implementation {
  background-color: #EAF2EB;
  color: #2D6A35;
}


/* Card title */
.skill-card-title {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.3;
}


/* Card description */
.skill-card-description {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  flex-grow: 1;  /* pushes the link to the bottom of the card */
}


/* Card link */
.skill-card-link {
  font-size: var(--text-sm);
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
  margin-top: auto;
}

.skill-card-link:hover {
  color: var(--color-accent-hover);
}


/* ---- Empty / error states ---- */
.skills-empty,
.skills-error {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  padding: var(--space-8) 0;
  grid-column: 1 / -1;  /* span full grid width */
}


/* ---- Show more button ---- */
.show-more-wrap {
  text-align: center;
  margin-top: var(--space-8);
}

.show-more-btn {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: var(--space-3) var(--space-6);
  cursor: pointer;
  transition: color var(--transition-fast),
              border-color var(--transition-fast);
}

.show-more-btn:hover {
  color: var(--color-text);
  border-color: var(--color-text-muted);
}

/* ---- Placeholder card state ---- */
.skill-card--placeholder {
  opacity: 0.6;
}

.skill-card-coming-soon {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
  font-style: italic;
}