/* ==========================================================================
   Nicolas Sanchez - Toolkit page stylesheet (Dossier Dark design)
   Used by: toolkit.html only.
   The other pages use base.css + home.css / pages.css.
   Plain CSS, no build step needed.
   ========================================================================== */

/* ---------- Design Tokens (Dossier Dark) ---------- */
:root {
  --d-paper:      #18140e;
  --d-paper-2:    #221c12;
  --d-ink:        #e8e0c8;
  --d-ink-soft:   #b3aa8e;
  --d-ink-faded:  #807868;
  --d-rule:       #3a3320;
  --d-accent:     #d4854a;
  --d-accent-dim: rgba(212, 133, 74, 0.15);
  --d-surface:    rgba(255, 248, 230, 0.04);
  --d-surface-2:  rgba(255, 248, 230, 0.07);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--d-paper);
  color: var(--d-ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.mono {
  font-family: 'JetBrains Mono', 'IBM Plex Mono', ui-monospace, Menlo, monospace;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

ul {
  list-style: none;
}

/* ---------- Paper grain overlay ---------- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.18;
  mix-blend-mode: screen;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.1 0 0 0 0 0.09 0 0 0 0 0.07 0 0 0 0.18 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

body > * {
  position: relative;
  z-index: 1;
}

/* ---------- Utility ---------- */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ---------- Classification Bar ---------- */
.d-classbar {
  background: var(--d-ink);
  color: var(--d-paper);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  padding: 0.45rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.d-classbar span { opacity: 0.6; }

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(24, 20, 14, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--d-rule);
}

.nav-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 3.25rem;
}

.nav-brand {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--d-ink-soft);
  text-transform: uppercase;
  text-decoration: none;
  transition: color 0.2s;
}

.nav-brand:hover { color: var(--d-accent); }

.nav-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--d-ink-faded);
  text-transform: uppercase;
  text-decoration: none;
  transition: color 0.2s;
}

.nav-back:hover { color: var(--d-accent); }
.nav-back svg { width: 14px; height: 14px; }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--d-rule);
  padding: 2rem 0;
  text-align: center;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.footer-socials {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
}

.footer-socials a {
  color: var(--d-ink-faded);
  transition: color 0.2s;
}

.footer-socials a:hover { color: var(--d-accent); }
.footer-socials svg { width: 22px; height: 22px; }

.footer-links {
  display: flex;
  gap: 1.5rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.1em;
}

.footer-links a {
  color: var(--d-ink-faded);
  text-transform: uppercase;
  transition: color 0.2s;
}

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

.footer-copy {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--d-ink-faded);
}

/* ---------- Toolkit Page ---------- */
.toolkit-page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.toolkit-content {
  flex: 1;
  padding: 4rem 0;
}

.toolkit-header {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--d-rule);
}

.toolkit-header h1 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--d-ink);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.toolkit-subtitle {
  color: var(--d-ink-soft);
  font-size: 0.9rem;
  line-height: 1.6;
}

.toolkit-empty {
  text-align: center;
  padding: 4rem 0;
  color: var(--d-ink-faded);
  font-size: 0.9rem;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.08em;
}

/* ---------- Toolkit Toolbar ---------- */
.dl-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  margin-bottom: 2rem;
}

.dl-search-wrap {
  position: relative;
  flex: 1;
  min-width: 200px;
  max-width: 320px;
}

.dl-search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--d-ink-faded);
  pointer-events: none;
}

.dl-search {
  width: 100%;
  background: var(--d-surface);
  border: 1px solid var(--d-rule);
  border-radius: 3px;
  padding: 0.55rem 0.75rem 0.55rem 2.25rem;
  color: var(--d-ink);
  font-size: 0.85rem;
  font-family: inherit;
  transition: border-color 0.2s;
}

.dl-search::placeholder { color: var(--d-ink-faded); }
.dl-search:focus {
  outline: none;
  border-color: var(--d-accent);
}

.dl-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.dl-filter-btn {
  background: transparent;
  border: 1px solid var(--d-rule);
  color: var(--d-ink-soft);
  padding: 0.35rem 0.9rem;
  border-radius: 2px;
  font-size: 0.68rem;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s;
}

.dl-filter-btn:hover {
  border-color: var(--d-accent);
  color: var(--d-accent);
}

.dl-filter-btn.active {
  background: var(--d-accent);
  border-color: var(--d-accent);
  color: #18140e;
}

/* ---------- Toolkit Grid ---------- */
.dl-grid {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-bottom: 3rem;
}

.dl-card[hidden] { display: none; }

.dl-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  background: var(--d-surface);
  border: 1px solid var(--d-rule);
  border-radius: 2px;
  padding: 1rem 1.25rem;
  transition: border-color 0.2s, background 0.2s;
}

.dl-card:hover {
  border-color: var(--d-accent);
  background: var(--d-surface-2);
}

.dl-card-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--d-accent-dim);
  border: 1px solid rgba(212, 133, 74, 0.2);
  border-radius: 2px;
  color: var(--d-accent);
}

.dl-card-icon svg {
  width: 18px;
  height: 18px;
}

.dl-card-body {
  flex: 1;
  min-width: 0;
}

.dl-card-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--d-ink);
  margin-bottom: 0.2rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dl-card-desc {
  font-size: 0.78rem;
  color: var(--d-ink-soft);
  line-height: 1.5;
  margin-bottom: 0.35rem;
}

.dl-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.dl-card-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--d-accent-dim);
  color: var(--d-accent);
  padding: 0.1rem 0.5rem;
  border-radius: 1px;
}

.dl-card-btn {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 2px;
  border: 1px solid var(--d-rule);
  color: var(--d-ink-faded);
  background: transparent;
  transition: all 0.2s;
}

.dl-card-btn:hover {
  border-color: var(--d-accent);
  color: var(--d-accent);
  background: var(--d-accent-dim);
}

.dl-card-btn svg {
  width: 16px;
  height: 16px;
}

/* ---------- Privacy / Terms pages ---------- */
.prose-page {
  padding: 4rem 0 6rem;
}

.prose-page h1 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--d-ink);
  margin-bottom: 0.5rem;
}

.prose-page .last-updated {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: var(--d-ink-faded);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--d-rule);
}

.prose-page h2 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--d-ink);
  margin: 2rem 0 0.75rem;
}

.prose-page p,
.prose-page li {
  font-size: 0.9rem;
  color: var(--d-ink-soft);
  line-height: 1.75;
  margin-bottom: 0.75rem;
}

.prose-page ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.prose-page a {
  color: var(--d-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .d-classbar { display: none; }

  .dl-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .dl-search-wrap { max-width: 100%; }

  .dl-card { gap: 0.75rem; padding: 0.875rem 1rem; }

  .toolkit-header h1 { font-size: 1.2rem; }
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .dl-card,
  .nav-back,
  .dl-filter-btn,
  .dl-card-btn { transition: none; }
}