/* ============================================
   YAHAVI FORGE — UI LAYER
   (1) Fixed sidebar module nav  (2) Rich ecosystem footer
   Built on the existing brutalist tokens in styles.css.
   ============================================ */

:root { --nav-h: 64px; --sidebar-w: 236px; }

/* ============================================
   APP SHELL + SIDEBAR
   ============================================ */
.app-shell { display: flex; align-items: flex-start; }

.app-shell > .container { flex: 1 1 auto; min-width: 0; max-width: 1180px; margin: 0 auto; }

.sidebar {
  flex: 0 0 var(--sidebar-w);
  width: var(--sidebar-w);
  position: sticky;
  top: var(--nav-h);
  align-self: flex-start;
  height: calc(100vh - var(--nav-h));
  overflow-y: auto;
  background: var(--paper);
  border-right: var(--border);
  z-index: 90;
}

.sidebar-inner { padding: 20px 14px 40px; }

.sidebar-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding: 0 6px 12px;
  margin-bottom: 8px;
  border-bottom: 2px solid var(--ink);
}

.sidebar-tabs { display: flex; flex-direction: column; gap: 6px; margin-top: 12px; }

/* Reuse .nav-tab (app.js binds these) but lay them out vertically */
.sidebar .nav-tab {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  justify-content: flex-start;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 12px 12px;
  border: 2px solid transparent;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.1s, background 0.1s;
}
.sidebar .nav-tab::before { content: "▸"; color: var(--pink); font-weight: 900; }
.sidebar .nav-tab:hover {
  background: var(--yellow);
  border-color: var(--ink);
  transform: translate(-2px, -2px);
  box-shadow: 3px 3px 0 var(--ink);
}
.sidebar .nav-tab.active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  box-shadow: 4px 4px 0 var(--pink);
}
.sidebar .nav-tab.active::before { color: var(--yellow); }

.sidebar-foot {
  margin: 20px 6px 0;
  padding-top: 14px;
  border-top: 2px dashed var(--ink);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
}

/* Hamburger (mobile only) */
.nav-burger {
  display: none;
  width: 40px; height: 40px;
  align-items: center; justify-content: center;
  background: var(--yellow);
  border: var(--border);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  font-size: 18px; font-weight: 900;
  flex: none;
}
.nav-burger:hover { background: var(--ink); color: var(--paper); }

.sidebar-overlay { position: fixed; inset: 0; background: rgba(10,10,10,0.6); z-index: 240; display: none; }
.sidebar-overlay.open { display: block; }

@media (max-width: 991px) {
  .app-shell { display: block; }
  .nav-burger { display: inline-flex; }
  .sidebar {
    position: fixed; top: 0; left: 0;
    height: 100vh; width: min(280px, 82vw);
    flex-basis: auto;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    border-right: var(--border-thick);
    z-index: 250;
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-inner { padding-top: 24px; }
  .app-shell > .container { max-width: none; }
}

/* ============================================
   RICH ECOSYSTEM FOOTER
   ============================================ */
.site-footer {
  margin-top: 80px;
  background: var(--ink);
  color: var(--paper);
  border-top: var(--border-thick);
}
.site-footer a { color: var(--paper); border-bottom: none; font-weight: 500; }
.site-footer a:hover { color: var(--ink); background: var(--yellow); }
.footer-wrap { max-width: 1280px; margin: 0 auto; }

/* Newsletter row */
.footer-news { border-bottom: 2px solid rgba(250,246,233,0.14); }
.footer-news-inner {
  max-width: 1280px; margin: 0 auto; padding: 32px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
}
.footer-news h3 { font-family: var(--font-display); font-size: clamp(20px,3vw,28px); text-transform: uppercase; letter-spacing: -0.02em; margin-bottom: 6px; }
.footer-news p { font-family: var(--font-mono); font-size: 12px; color: rgba(250,246,233,0.6); letter-spacing: 0.03em; }
.footer-news form { display: flex; gap: 10px; flex: 1; min-width: 280px; max-width: 460px; }
.footer-news input {
  flex: 1; width: auto; background: var(--paper); color: var(--ink);
  border: var(--border); padding: 12px 14px; font-family: var(--font-body); font-size: 14px;
  box-shadow: 4px 4px 0 var(--yellow);
}
.footer-news input:focus { outline: none; transform: translate(1px,1px); box-shadow: 2px 2px 0 var(--yellow); background: var(--paper); }
.footer-news button {
  background: var(--yellow); color: var(--ink); border: var(--border);
  padding: 12px 18px; font-family: var(--font-mono); font-size: 12px; font-weight: 800;
  text-transform: uppercase; letter-spacing: 0.08em; cursor: pointer; box-shadow: 4px 4px 0 var(--pink);
  transition: transform 0.1s, box-shadow 0.1s; white-space: nowrap;
}
.footer-news button:hover { transform: translate(2px,2px); box-shadow: 2px 2px 0 var(--pink); }

/* Columns */
.footer-cols {
  padding: 44px 32px;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr;
  gap: 32px;
}
.footer-brandcol .footer-logo { font-family: var(--font-display); font-size: 24px; text-transform: uppercase; letter-spacing: -0.01em; }
.footer-brandcol .footer-logo .accent { color: var(--yellow); }
.footer-brandcol .footer-sub { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--pink); margin: 4px 0 14px; }
.footer-brandcol p.blurb { font-size: 13px; line-height: 1.55; color: rgba(250,246,233,0.6); max-width: 280px; margin-bottom: 18px; }

.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 38px; height: 38px; display: flex; align-items: center; justify-content: center;
  background: rgba(250,246,233,0.08); border: 2px solid rgba(250,246,233,0.25);
}
.footer-social a:hover { background: var(--yellow); border-color: var(--yellow); }
.footer-social svg { width: 18px; height: 18px; }

.footer-founders { margin-top: 16px; display: flex; flex-direction: column; gap: 5px; }
.footer-founders .ff-label { font-family: var(--font-mono); font-size: 10px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--yellow); margin-bottom: 2px; }
.footer-founders a { font-family: var(--font-mono); font-size: 11.5px; color: rgba(250,246,233,0.7); width: fit-content; }
.footer-founders a:hover { color: var(--ink); background: var(--yellow); padding: 0 3px; }

.footer-col h4 { font-family: var(--font-mono); font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.14em; color: var(--yellow); margin-bottom: 14px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 11px; }
.footer-col a { font-family: var(--font-body); font-size: 13px; color: rgba(250,246,233,0.65); }
.footer-col a:hover { color: var(--ink); background: var(--yellow); padding: 0 3px; }

/* Trust badges */
.footer-badges {
  border-top: 2px solid rgba(250,246,233,0.14);
  padding: 22px 32px;
  display: flex; gap: 14px; flex-wrap: wrap; justify-content: center;
}
.footer-badge {
  border: 2px solid rgba(250,246,233,0.2); padding: 8px 14px; min-width: 150px;
  display: flex; flex-direction: column; gap: 2px;
}
.footer-badge strong { font-family: var(--font-display); font-size: 13px; text-transform: uppercase; color: var(--paper); }
.footer-badge span { font-family: var(--font-mono); font-size: 10px; color: rgba(250,246,233,0.55); letter-spacing: 0.03em; }

/* Contact row */
.footer-contact {
  border-top: 2px solid rgba(250,246,233,0.14);
  padding: 16px 32px;
  display: flex; align-items: center; justify-content: center; gap: 20px; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: 12px; color: rgba(250,246,233,0.55);
}
.footer-contact a { color: rgba(250,246,233,0.7); }
.footer-contact .sep { color: rgba(250,246,233,0.2); }

/* Bottom bar */
.footer-bottom {
  border-top: 2px solid rgba(250,246,233,0.14);
  padding: 18px 32px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.footer-copy { font-family: var(--font-mono); font-size: 11px; color: rgba(250,246,233,0.45); letter-spacing: 0.03em; }
.footer-legal { display: flex; gap: 16px; flex-wrap: wrap; }
.footer-legal a { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; color: rgba(250,246,233,0.5); }

@media (max-width: 880px) {
  .footer-cols { grid-template-columns: 1fr 1fr; gap: 28px; }
  .footer-brandcol { grid-column: 1 / -1; }
  .footer-news-inner { flex-direction: column; align-items: flex-start; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 520px) {
  .footer-cols { grid-template-columns: 1fr; }
  .footer-news, .footer-cols, .footer-badges, .footer-contact, .footer-bottom { padding-left: 18px; padding-right: 18px; }
}

/* ============================================
   v2 ADDITIONS — sidebar groups + feature buttons
   ============================================ */
.sidebar-group { margin-top: 14px; }
.sidebar-group + .sidebar-group { margin-top: 16px; }
.sidebar-group-label {
  font-family: var(--font-mono); font-size: 9.5px; font-weight: 700;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--pink); padding: 0 8px 6px;
  border-bottom: 2px dotted var(--ink); margin-bottom: 6px;
}

/* feature cards rendered as buttons keep button defaults out */
button.feature-card {
  font-family: inherit; font-size: inherit; text-align: left;
  border-radius: 0; outline: none;
}
button.feature-card:focus-visible {
  outline: 3px solid var(--yellow); outline-offset: 2px;
}

/* loading spinner inside output panels */
.output-area.has-content .loading-dots span { background: var(--pink); }

/* ATS report fallback (used by /js/runner.js when AI fails) */
.report-empty {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--ink-faint);
  border: 2px dashed var(--ink); padding: 40px; text-align: center;
}

/* ============================================================
   v3 — SIDEBAR overhaul (sections + bottom keys + settings/profile/pricing)
   ============================================================ */
.sidebar-section { margin: 18px 0 14px; }
.sidebar-section + .sidebar-section { border-top: 2px dotted var(--ink); padding-top: 14px; }

.sidebar-foot-links {
  list-style: none; padding: 0 6px;
  display: flex; flex-direction: column; gap: 4px;
}
.sidebar-foot-links a {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.06em; text-transform: uppercase;
  padding: 7px 8px; color: var(--ink);
  border: 2px solid transparent;
  text-decoration: none; border-bottom: none;
  transition: all 0.1s;
}
.sidebar-foot-links a:hover {
  background: var(--yellow); border-color: var(--ink);
  transform: translate(-2px, -2px); box-shadow: 3px 3px 0 var(--ink);
}

/* keys pinned at bottom */
.sidebar-keys {
  margin: 16px 6px 8px;
  padding: 14px 12px;
  background: var(--pink); color: var(--paper);
  border: var(--border); box-shadow: var(--shadow-sm);
  font-family: var(--font-mono); font-size: 11px; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  display: flex; align-items: center; gap: 8px;
  cursor: pointer; transition: all 0.1s;
}
.sidebar-keys:hover { transform: translate(-2px,-2px); box-shadow: 5px 5px 0 var(--ink); }
.sidebar-keys .key-dot {
  width: 10px; height: 10px; background: var(--ink-faint); border: 2px solid var(--paper);
}
.sidebar-keys.has-keys .key-dot { background: var(--lime); }

/* ============================================================
   v5 — YAHAVI CHAT  (dark bg · teal bubbles · pill style)
   Inspired by modern messaging UIs — dark theme, rounded pills,
   teal accent, white text. Matches the ZenChat reference design.
   ============================================================ */

/* ── Chat colour tokens ── */
:root {
  --yc-bg:        #111827;   /* outer panel + header */
  --yc-msgs-bg:   #0d1117;   /* message area */
  --yc-ai:        #00B09B;   /* AI bubble – bright teal */
  --yc-ai-deep:   #00897B;   /* AI bubble gradient end */
  --yc-user:      #0f766e;   /* user bubble */
  --yc-user-deep: #0d5e57;   /* user bubble gradient end */
  --yc-text:      #ffffff;
  --yc-text-soft: rgba(255,255,255,0.72);
  --yc-input-bg:  #1f2937;
  --yc-border:    rgba(255,255,255,0.08);
  --yc-teal:      #00B09B;
}

/* ── FAB launch button ──
   Spec: 48px tall pill, bottom 20px right 20px
*/
#ask-yahavi-btn.ask-yahavi-btn {
  border-radius: 999px;
  border: none;
  height: 48px;
  padding: 0 20px;
  font-size: 11px;
  letter-spacing: 0.1em;
  background: linear-gradient(135deg, #00B09B 0%, #00897B 100%);
  color: #fff;
  box-shadow: 0 8px 24px rgba(0,176,155,0.45);
  transition: transform 0.2s cubic-bezier(.4,0,.2,1), box-shadow 0.2s;
  bottom: 20px; right: 20px;
  display: inline-flex; align-items: center;
}
#ask-yahavi-btn.ask-yahavi-btn:hover {
  transform: translateY(-3px) scale(1.04);
  box-shadow: 0 14px 32px rgba(0,176,155,0.55);
}
#ask-yahavi-btn.ask-yahavi-btn span:first-child { font-size: 16px; }
#ask-yahavi-btn.hide { opacity: 0; transform: scale(0.6); pointer-events: none; }

/* ── Panel shell ──
   Spec: 360px × 760px, bottom 20px right 20px
   Mobile: 100% width × 480px, bottom-sheet (radius top only)
*/
.yahavi-chat {
  position: fixed; bottom: 20px; right: 20px; z-index: 290;
  width: 360px;
  height: min(760px, calc(100vh - 60px));
  background: var(--yc-bg);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,0.55), 0 0 0 1px rgba(255,255,255,0.06);
  display: flex; flex-direction: column;
  font-family: var(--font-body);
  transform: scale(0.85) translateY(20px);
  opacity: 0;
  transform-origin: bottom right;
  pointer-events: none;
  transition: transform 0.32s cubic-bezier(.34,1.56,.64,1), opacity 0.22s ease-out;
}
.yahavi-chat.open { transform: scale(1) translateY(0); opacity: 1; pointer-events: auto; }

/* Mobile: bottom sheet — full width, 480px, radius on top only */
@media (max-width: 480px) {
  #ask-yahavi-btn.ask-yahavi-btn { padding: 0 14px; }
  .yahavi-chat {
    width: 100%;
    height: min(480px, calc(100vh - 60px));
    bottom: 0; right: 0;
    border-radius: 20px 20px 0 0;
    transform-origin: bottom center;
  }
}

/* ── Header ── */
.yc-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px;
  background: linear-gradient(135deg, #0d1f1e 0%, #0f2320 100%);
  border-bottom: 1px solid var(--yc-border);
  flex-shrink: 0;
}
.yc-id { display: flex; align-items: center; gap: 11px; }
/* Avatar = Forge Y mark: black square, yellow Y (matches brand identity) */
.yc-avatar {
  width: 40px; height: 40px;
  flex-shrink: 0;
  display: block;
  border-radius: 8px;
  overflow: hidden;
}
.yc-name {
  font-family: var(--font-body); font-size: 15px; font-weight: 700;
  color: var(--yc-text);
}
.yc-status {
  font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.06em;
  color: var(--yc-teal); display: flex; align-items: center; gap: 5px;
  opacity: 0.85;
}
.yc-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--yc-teal);
  animation: yc-pulse 1.4s ease-in-out infinite;
}
@keyframes yc-pulse { 0%,100% { opacity:1; transform:scale(1); } 50% { opacity:0.5; transform:scale(0.85); } }
.yc-close {
  width: 30px; height: 30px; border-radius: 50%;
  background: rgba(255,255,255,0.1); color: var(--yc-text);
  border: none; cursor: pointer; font-size: 20px; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s;
}
.yc-close:hover { background: rgba(255,255,255,0.2); }

/* ── Message area ── */
.yc-msgs {
  flex: 1; overflow-y: auto;
  padding: 16px 14px 12px;
  background: var(--yc-msgs-bg);
  display: flex; flex-direction: column; gap: 8px;
  /* Custom scrollbar */
  scrollbar-width: thin;
  scrollbar-color: rgba(0,176,155,0.3) transparent;
}
.yc-msgs::-webkit-scrollbar { width: 4px; }
.yc-msgs::-webkit-scrollbar-thumb { background: rgba(0,176,155,0.3); border-radius: 4px; }

.yc-msg {
  display: flex; align-items: flex-end; gap: 8px;
  animation: yc-in 0.28s cubic-bezier(.34,1.56,.64,1);
}
@keyframes yc-in { from { opacity:0; transform:translateY(10px); } to { opacity:1; transform:translateY(0); } }
.yc-msg-user { justify-content: flex-end; }
.yc-msg-ai { justify-content: flex-start; }

/* ── Y-mark beside AI messages (matches brand identity: black sq, yellow Y) ── */
.yc-msg-ai::before {
  content: '';
  width: 26px; height: 26px; border-radius: 6px; flex-shrink: 0;
  background-color: #111111;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 26 26'%3E%3Crect width='26' height='26' fill='%23111111' rx='5'/%3E%3Ctext x='13' y='19' text-anchor='middle' font-family='Arial Black,sans-serif' font-size='15' font-weight='900' fill='%23FFD400'%3EY%3C/text%3E%3C/svg%3E");
  background-size: contain;
  margin-bottom: 2px;
  display: block;
}

/* ── Bubbles ── */
.yc-bubble {
  max-width: 78%;
  padding: 11px 15px;
  font-size: 14px; line-height: 1.5;
  border-radius: 20px;
  word-break: break-word;
}
.yc-msg-ai .yc-bubble {
  background: linear-gradient(135deg, var(--yc-ai) 0%, var(--yc-ai-deep) 100%);
  color: var(--yc-text);
  border-bottom-left-radius: 5px;
  box-shadow: 0 4px 14px rgba(0,176,155,0.25);
}
.yc-msg-user .yc-bubble {
  background: linear-gradient(135deg, var(--yc-user) 0%, var(--yc-user-deep) 100%);
  color: var(--yc-text);
  border-bottom-right-radius: 5px;
  box-shadow: 0 4px 14px rgba(15,118,110,0.3);
}
.yc-bubble h3, .yc-bubble h4 {
  font-weight: 800; font-size: 13px; text-transform: uppercase;
  letter-spacing: 0.04em; margin: 6px 0 4px; color: rgba(255,255,255,0.9);
}
.yc-bubble ul { padding-left: 18px; margin: 4px 0; }
.yc-bubble ul li { margin-bottom: 4px; }
.yc-bubble code {
  font-family: var(--font-mono); font-size: 11.5px;
  background: rgba(0,0,0,0.25); padding: 1px 6px; border-radius: 4px;
  color: #e2fef9;
}
.yc-bubble strong { color: #fff; font-weight: 700; }
.yc-bubble a { color: #a7f3ea; border-bottom: 1px solid rgba(167,243,234,0.5); font-weight: 600; }
.yc-bubble p { margin-bottom: 6px; }
.yc-bubble p:last-child { margin-bottom: 0; }
.yc-attrib {
  font-size: 9px; color: rgba(255,255,255,0.4);
  margin-top: 6px; font-family: var(--font-mono); letter-spacing: 0.05em;
}

/* ── Input bar ── */
.yc-form {
  display: flex; gap: 8px;
  padding: 10px 12px;
  background: var(--yc-bg);
  border-top: 1px solid var(--yc-border);
  flex-shrink: 0;
}
.yc-input {
  flex: 1; padding: 11px 16px;
  background: var(--yc-input-bg) !important;
  border: 1px solid rgba(0,176,155,0.2) !important;
  border-radius: 999px;
  font-family: var(--font-body); font-size: 14px;
  color: var(--yc-text) !important; outline: none;
  transition: border 0.15s, box-shadow 0.15s;
}
.yc-input::placeholder { color: rgba(255,255,255,0.35); }
.yc-input:focus {
  border-color: var(--yc-teal) !important;
  box-shadow: 0 0 0 3px rgba(0,176,155,0.18);
}
.yc-send {
  width: 42px; height: 42px; flex: none;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--yc-ai) 0%, var(--yc-ai-deep) 100%);
  color: #fff; border: none;
  font-size: 17px; cursor: pointer;
  box-shadow: 0 4px 14px rgba(0,176,155,0.4);
  transition: transform 0.15s, box-shadow 0.15s;
  display: flex; align-items: center; justify-content: center;
}
.yc-send:hover { transform: scale(1.1); box-shadow: 0 6px 20px rgba(0,176,155,0.55); }
.yc-send:disabled { opacity: 0.45; cursor: not-allowed; transform: none; }

/* ── Typing dots ── */
.yc-typing { display: inline-flex; gap: 5px; align-items: center; padding: 2px 0; }
.yc-typing span {
  width: 7px; height: 7px; border-radius: 50%;
  background: rgba(255,255,255,0.7);
  animation: yc-typing 1.2s ease-in-out infinite;
}
.yc-typing span:nth-child(2) { animation-delay: 0.15s; }
.yc-typing span:nth-child(3) { animation-delay: 0.3s; }
@keyframes yc-typing { 0%,100% { transform:translateY(0); opacity:0.4; } 50% { transform:translateY(-5px); opacity:1; } }

/* ============================================================
   v4 — SIDEBAR COLLAPSIBLE CATEGORIES + scroll-reveal
   ============================================================ */
/* ============================================================
   v5 — SIDEBAR DROPDOWN CATEGORIES
   Click category header → smooth accordion → sub-tools slide in
   ============================================================ */

/* ── Category wrapper ── */
.sidebar-cat {
  margin-bottom: 3px;
}

/* ── Category header (the clickable toggle row) ── */
.sidebar-cat-toggle {
  display: flex;
  align-items: center;
  gap: 0;
  width: 100%;
  padding: 10px 10px 10px 12px;
  background: transparent;
  color: var(--ink);
  border: none;
  border-left: 3px solid transparent;
  cursor: pointer;
  text-align: left;
  transition: background 0.13s, border-color 0.13s;
  position: relative;
}
.sidebar-cat-toggle:hover {
  background: var(--yellow);
  border-left-color: var(--ink);
}

/* Category icon */
.cat-ico {
  font-size: 15px;
  margin-right: 9px;
  flex-shrink: 0;
  line-height: 1;
}

/* Category label */
.cat-label {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  flex: 1;
  color: var(--ink);
}

/* Tool count badge */
.cat-count {
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 700;
  background: var(--paper-warm);
  color: var(--ink-faint);
  border: 1px solid var(--ink);
  padding: 1px 5px;
  border-radius: 3px;
  margin-right: 8px;
  flex-shrink: 0;
  transition: background 0.13s, color 0.13s;
}
.sidebar-cat.open .cat-count {
  background: var(--ink);
  color: var(--paper);
}

/* Chevron arrow — rotates on open */
.cat-icon {
  font-style: normal;
  font-size: 11px;
  font-weight: 900;
  color: var(--ink-faint);
  transition: transform 0.28s cubic-bezier(.4,0,.2,1), color 0.13s;
  flex-shrink: 0;
  display: inline-block;
}
.sidebar-cat.open .cat-icon {
  transform: rotate(90deg);
  color: var(--ink);
}

/* Active-category highlight on the header */
.sidebar-cat.open .sidebar-cat-toggle {
  background: var(--yellow);
  border-left-color: var(--ink);
}
.sidebar-cat.open .sidebar-cat-toggle .cat-label { color: var(--ink); }

/* ── Dropdown list ── */
.sidebar-cat-list {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.38s cubic-bezier(.4,0,.2,1);
  background: var(--paper-warm);
  border-left: 3px solid var(--ink);
  margin-left: 12px;
}
.sidebar-cat.open .sidebar-cat-list {
  max-height: 400px;
}

/* ── Sub-items inside the dropdown ── */
.sidebar-cat-list .nav-tab {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-transform: none;
  padding: 9px 12px 9px 14px !important;
  color: var(--ink-soft);
  border: none;
  border-bottom: 1px solid rgba(10,10,10,0.07);
  background: transparent;
  /* slide-in animation */
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.2s, transform 0.2s, background 0.1s, color 0.1s;
}
.sidebar-cat-list .nav-tab::before {
  content: "–";
  color: var(--ink-faint);
  font-weight: 400;
  font-size: 11px;
  margin-right: 8px;
}
.sidebar-cat.open .sidebar-cat-list .nav-tab {
  opacity: 1;
  transform: translateX(0);
}
.sidebar-cat-list .nav-tab:last-child { border-bottom: none; }
.sidebar-cat-list .nav-tab:hover {
  background: var(--yellow);
  color: var(--ink);
  transform: none;
  box-shadow: none;
}
.sidebar-cat-list .nav-tab:hover::before { color: var(--ink); }
.sidebar-cat-list .nav-tab.active {
  background: var(--ink);
  color: var(--paper);
  border-left: 3px solid var(--yellow);
  padding-left: 11px !important;
  font-weight: 700;
}
.sidebar-cat-list .nav-tab.active::before { color: var(--yellow); }

/* staggered slide-in delays */
.sidebar-cat.open .sidebar-cat-list .nav-tab:nth-child(1) { transition-delay: 0.04s; }
.sidebar-cat.open .sidebar-cat-list .nav-tab:nth-child(2) { transition-delay: 0.08s; }
.sidebar-cat.open .sidebar-cat-list .nav-tab:nth-child(3) { transition-delay: 0.12s; }
.sidebar-cat.open .sidebar-cat-list .nav-tab:nth-child(4) { transition-delay: 0.16s; }
.sidebar-cat.open .sidebar-cat-list .nav-tab:nth-child(5) { transition-delay: 0.20s; }

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(.4,0,.2,1), transform 0.7s cubic-bezier(.4,0,.2,1);
  will-change: opacity, transform;
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}
.reveal.stagger-1.in-view { transition-delay: 0.08s; }
.reveal.stagger-2.in-view { transition-delay: 0.16s; }
.reveal.stagger-3.in-view { transition-delay: 0.24s; }
.reveal.stagger-4.in-view { transition-delay: 0.32s; }
.reveal.scale {
  transform: translateY(28px) scale(0.96);
}
.reveal.scale.in-view {
  transform: translateY(0) scale(1);
}
.reveal.slide-left {
  transform: translateX(-40px);
}
.reveal.slide-left.in-view {
  transform: translateX(0);
}
.reveal.slide-right {
  transform: translateX(40px);
}
.reveal.slide-right.in-view {
  transform: translateX(0);
}

/* Parallax-y subtle on hero */
@media (prefers-reduced-motion: no-preference) {
  .land-title {
    transition: transform 0.6s cubic-bezier(.4,0,.2,1);
  }
}