/* ═══════════════════════════════════════════════════════
   Norviq — library.css
   Prompt Library & Blog page styles
   Extends style.css — imports not needed (loaded together)
   ═══════════════════════════════════════════════════════ */

/* ─── LIB LAYOUT ─────────────────────────────────────── */
.lib-page {
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text-1);
  font-family: var(--f-ui);
}

/* Topbar reuse — same as index.html topbar */
.lib-topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 56px;
  background: var(--s1);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 100;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.lib-topbar__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text-1);
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.02em;
}

.lib-topbar__logo img {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

.lib-topbar__nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.lib-topbar__nav a {
  text-decoration: none;
  color: var(--text-2);
  font-size: 13px;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: var(--r);
  transition: color var(--t-fast) var(--ease-std), background var(--t-fast) var(--ease-std);
}

.lib-topbar__nav a:hover,
.lib-topbar__nav a.active {
  color: var(--text-1);
  background: var(--s2);
}

.lib-topbar__cta {
  background: var(--accent);
  color: #000 !important;
  border-radius: var(--r) !important;
  font-weight: 600 !important;
  padding: 6px 14px !important;
  transition: background var(--t-fast) !important;
}

.lib-topbar__cta:hover {
  background: var(--accent-hi) !important;
}

/* ─── MAIN CONTENT WRAPPER ───────────────────────────── */
.lib-main {
  padding-top: 56px;
}

.lib-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── HERO / PAGE HEADER ─────────────────────────────── */
.lib-hero {
  padding: 64px 0 48px;
  border-bottom: 1px solid var(--border);
}

.lib-hero__eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.lib-hero h1 {
  font-family: var(--f-display);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-1);
  margin-bottom: 16px;
}

.lib-hero p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-2);
  max-width: 600px;
}

.lib-hero__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.lib-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-bd);
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.lib-hero__count {
  font-size: 13px;
  color: var(--text-2);
}

/* ─── CATEGORY GRID (hub page) ───────────────────────── */
.lib-cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  padding: 48px 0;
}

.lib-cat-card {
  background: var(--s1);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 24px;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color var(--t-base) var(--ease), transform var(--t-base) var(--ease), background var(--t-base) var(--ease);
  position: relative;
  overflow: hidden;
}

.lib-cat-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-dim) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--t-base) var(--ease);
}

.lib-cat-card:hover {
  border-color: var(--accent-bd);
  transform: translateY(-2px);
  background: var(--s2);
}

.lib-cat-card:hover::before {
  opacity: 1;
}

.lib-cat-card__icon {
  font-size: 24px;
  line-height: 1;
  position: relative;
}

.lib-cat-card__title {
  font-family: var(--f-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--text-1);
  letter-spacing: -0.02em;
  position: relative;
}

.lib-cat-card__desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-2);
  flex: 1;
  position: relative;
}

.lib-cat-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.lib-cat-card__count {
  font-size: 12px;
  color: var(--text-3);
  font-family: var(--f-mono);
}

.lib-cat-card__arrow {
  width: 20px;
  height: 20px;
  color: var(--accent);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}

.lib-cat-card:hover .lib-cat-card__arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ─── FILTER BAR ─────────────────────────────────────── */
.lib-filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 24px 0 16px;
  flex-wrap: wrap;
}

.lib-filter-bar__label {
  font-size: 12px;
  color: var(--text-3);
  font-weight: 500;
  margin-right: 4px;
}

.lib-filter-btn {
  padding: 5px 12px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--s1);
  color: var(--text-2);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--t-fast) var(--ease-std);
  font-family: var(--f-ui);
}

.lib-filter-btn:hover {
  border-color: var(--border-hi);
  color: var(--text-1);
}

.lib-filter-btn.active {
  background: var(--accent-dim);
  border-color: var(--accent-bd);
  color: var(--accent);
}

/* ─── PROMPT GRID ─────────────────────────────────────── */
.lib-prompt-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
  padding: 24px 0 64px;
}

/* ─── PROMPT CARD ─────────────────────────────────────── */
.prompt-card {
  background: var(--s1);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color var(--t-base) var(--ease), transform var(--t-fast) var(--ease);
  position: relative;
}

.prompt-card:hover {
  border-color: var(--border-hi);
  transform: translateY(-1px);
}

.prompt-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.prompt-card__title {
  font-family: var(--f-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-1);
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.prompt-card__tool-badge {
  flex-shrink: 0;
  font-size: 10px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 10px;
  background: var(--s3);
  color: var(--text-2);
  border: 1px solid var(--border);
  white-space: nowrap;
  font-family: var(--f-mono);
}

.prompt-card__text {
  font-size: 12px;
  line-height: 1.65;
  color: var(--text-2);
  font-family: var(--f-mono);
  background: var(--bg);
  border: 1px solid var(--border-s);
  border-radius: var(--r);
  padding: 12px;
  position: relative;

  /* Clamp to 4 lines */
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.prompt-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.prompt-card__tag {
  font-size: 10px;
  padding: 2px 7px;
  border-radius: 10px;
  background: var(--s2);
  color: var(--text-3);
  border: 1px solid var(--border-s);
  font-family: var(--f-mono);
}

.prompt-card__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}

.prompt-card__btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: var(--r);
  border: 1px solid var(--border);
  background: var(--s2);
  color: var(--text-2);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--t-fast) var(--ease-std);
  font-family: var(--f-ui);
  text-decoration: none;
}

.prompt-card__btn:hover {
  border-color: var(--border-hi);
  color: var(--text-1);
  background: var(--s3);
}

.prompt-card__btn--primary {
  background: var(--accent-dim);
  border-color: var(--accent-bd);
  color: var(--accent);
  font-weight: 600;
}

.prompt-card__btn--primary:hover {
  background: var(--accent);
  color: #000;
}

.prompt-card__btn--copied {
  background: rgba(34, 197, 94, 0.15);
  border-color: var(--accent-bd);
  color: var(--accent);
}

/* ─── CTA BANNER ─────────────────────────────────────── */
.lib-cta-banner {
  background: var(--s1);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 40px;
  text-align: center;
  margin: 32px 0 64px;
  position: relative;
  overflow: hidden;
}

.lib-cta-banner::before {
  content: "";
  position: absolute;
  top: -50%; left: 50%; transform: translateX(-50%);
  width: 400px; height: 200px;
  background: radial-gradient(ellipse, var(--accent-dim) 0%, transparent 70%);
  pointer-events: none;
}

.lib-cta-banner h2 {
  font-family: var(--f-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
  position: relative;
}

.lib-cta-banner p {
  font-size: 14px;
  color: var(--text-2);
  margin-bottom: 20px;
  position: relative;
}

.lib-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 24px;
  background: var(--accent);
  color: #000;
  border-radius: var(--r);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: background var(--t-fast) var(--ease);
  position: relative;
}

.lib-cta-btn:hover {
  background: var(--accent-hi);
}

/* ─── BREADCRUMB ─────────────────────────────────────── */
.lib-breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 20px 0 0;
  flex-wrap: wrap;
}

.lib-breadcrumb a {
  font-size: 12px;
  color: var(--text-3);
  text-decoration: none;
  transition: color var(--t-fast);
}

.lib-breadcrumb a:hover {
  color: var(--text-2);
}

.lib-breadcrumb__sep {
  font-size: 12px;
  color: var(--text-3);
}

.lib-breadcrumb__current {
  font-size: 12px;
  color: var(--text-2);
  font-weight: 500;
}

/* ─── RELATED GRID (sidebar / below) ─────────────────── */
.lib-related {
  padding: 40px 0;
  border-top: 1px solid var(--border);
}

.lib-related__title {
  font-family: var(--f-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

/* ─── BLOG LAYOUT ─────────────────────────────────────── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  padding: 48px 0 64px;
}

.blog-card {
  background: var(--s1);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 24px;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color var(--t-base) var(--ease), transform var(--t-fast) var(--ease);
}

.blog-card:hover {
  border-color: var(--border-hi);
  transform: translateY(-2px);
}

.blog-card__cat {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.blog-card__title {
  font-family: var(--f-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-1);
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.blog-card__excerpt {
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-2);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-3);
}

.blog-card__read-more {
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ─── BLOG POST PAGE ─────────────────────────────────── */
.blog-post {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

.blog-post h1 {
  font-family: var(--f-display);
  font-size: clamp(24px, 4vw, 38px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--text-1);
  margin-bottom: 16px;
}

.blog-post__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-3);
  flex-wrap: wrap;
}

.blog-post__meta span {
  display: flex;
  align-items: center;
  gap: 5px;
}

.blog-post__intro {
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-2);
  margin-bottom: 36px;
}

.blog-post h2 {
  font-family: var(--f-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-1);
  letter-spacing: -0.02em;
  margin: 40px 0 12px;
}

.blog-post p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-2);
  margin-bottom: 20px;
}

/* Inline prompt examples in blog posts */
.blog-post .prompt-card {
  margin: 24px 0;
}

/* ─── SINGLE PROMPT PAGE ─────────────────────────────── */
.prompt-detail {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.prompt-detail__text-block {
  background: var(--s1);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 24px;
  position: relative;
  margin: 24px 0;
}

.prompt-detail__text {
  font-family: var(--f-mono);
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-1);
  white-space: pre-wrap;
  word-break: break-word;
}

.prompt-detail__copy-row {
  display: flex;
  gap: 10px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.prompt-detail__tip {
  background: var(--accent-dim);
  border: 1px solid var(--accent-bd);
  border-radius: var(--r);
  padding: 14px 18px;
  font-size: 13px;
  color: var(--text-1);
  line-height: 1.6;
  margin: 20px 0;
}

.prompt-detail__tip strong {
  color: var(--accent);
}

/* ─── FAQ ACCORDION ──────────────────────────────────── */
.lib-faq {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  margin-top: 40px;
}

.lib-faq__title {
  font-family: var(--f-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.lib-faq-item {
  border: 1px solid var(--border);
  border-radius: var(--r);
  margin-bottom: 8px;
  overflow: hidden;
}

.lib-faq-item summary {
  padding: 14px 18px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-1);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--s1);
  transition: background var(--t-fast);
}

.lib-faq-item summary::-webkit-details-marker { display: none; }

.lib-faq-item summary::after {
  content: "+";
  font-size: 18px;
  color: var(--text-3);
  flex-shrink: 0;
  transition: transform var(--t-fast);
}

.lib-faq-item[open] summary::after {
  transform: rotate(45deg);
}

.lib-faq-item summary:hover {
  background: var(--s2);
}

.lib-faq-item__body {
  padding: 14px 18px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-2);
  border-top: 1px solid var(--border-s);
  background: var(--s1);
}

/* ─── FOOTER ─────────────────────────────────────────── */
.lib-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  text-align: center;
  font-size: 12px;
  color: var(--text-3);
}

.lib-footer a {
  color: var(--text-2);
  text-decoration: none;
  transition: color var(--t-fast);
}

.lib-footer a:hover {
  color: var(--accent);
}

/* ─── LIGHT MODE OVERRIDES ───────────────────────────── */
body.light .lib-cat-card,
body.light .prompt-card,
body.light .blog-card {
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

/* ─── RESPONSIVE ─────────────────────────────────────── */
@media (max-width: 768px) {
  .lib-topbar {
    padding: 0 16px;
  }

  .lib-topbar__nav {
    display: none;
  }

  .lib-hero {
    padding: 40px 0 32px;
  }

  .lib-hero h1 {
    font-size: 26px;
  }

  .lib-container {
    padding: 0 16px;
  }

  .lib-cat-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    padding: 32px 0;
  }

  .lib-prompt-grid {
    grid-template-columns: 1fr;
  }

  .blog-grid {
    grid-template-columns: 1fr;
  }

  .lib-cta-banner {
    padding: 28px 20px;
  }

  .blog-post {
    padding: 32px 16px 60px;
  }

  .prompt-detail {
    padding: 28px 16px 60px;
  }
}

@media (max-width: 480px) {
  .lib-cat-grid {
    grid-template-columns: 1fr;
  }

  .lib-hero h1 {
    font-size: 22px;
  }
}

/* ─── THEME TOGGLE (reuse from index) ────────────────── */
.lib-theme-toggle {
  width: 32px;
  height: 32px;
  border-radius: var(--r);
  border: 1px solid var(--border);
  background: var(--s2);
  color: var(--text-2);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--t-fast) var(--ease-std);
}

.lib-theme-toggle:hover {
  color: var(--text-1);
  border-color: var(--border-hi);
}