/* ═══════════════════════════════════════════════════════════════════
   D4N Tools — "Ledger" design system (redesign 2026)
   Same class API as the previous shared.css so existing tool pages
   keep working; visual language is new: paper/ink/orange, IBM Plex.
   ═══════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

/* ─── Design Tokens ──────────────────────────────────────────────── */
:root {
  --bg:           #f4f2ed;
  --card:         #fcfbf8;
  --txt:          #16181d;
  --muted:        #6f6a5e;
  --faint:        #a39d8e;
  --accent:       #e8590c;
  --accent-hover: #c94a08;
  --border:       #d8d3c6;
  --border-soft:  #e6e1d3;
  --row:          #efece3;
  --danger:       #c2362b;
  --success:      #1a7f4e;
  /* privacy key */
  --pk-local:  #2e9e63;
  --pk-api:    #c99414;
  --pk-stored: #3b82c4;
  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: 'IBM Plex Sans', system-ui, sans-serif;
}
[data-theme="dark"] {
  --bg:           #14130f;
  --card:         #1a1914;
  --txt:          #ece8dc;
  --muted:        #8f887a;
  --faint:        #6e675a;
  --accent:       #ff6b1a;
  --accent-hover: #ff8544;
  --border:       #3a382f;
  --border-soft:  #2a2820;
  --row:          #22211a;
  --danger:       #ff6b6b;
  --success:      #3fbf7f;
}

/* ─── Reset & Base ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--txt);
  font: 14px/1.5 var(--sans);
  transition: background .2s, color .2s;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: inherit; text-decoration: none; }

/* ─── Site Header ────────────────────────────────────────────────── */
.site-header {
  background: var(--card);
  border-bottom: 2px solid var(--txt);
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header-inner {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 48px;
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.site-header-left { display: flex; align-items: center; gap: 0; }
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .14em;
  color: var(--txt);
  white-space: nowrap;
}
.site-logo-mark {
  width: 30px; height: 30px;
  background: var(--txt);
  color: var(--card);
  font: 600 12px var(--mono);
  letter-spacing: -.5px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.site-logo-mark svg { width: 16px; height: 16px; color: var(--card); }
.header-right { display: flex; align-items: center; gap: 14px; }
.header-tag { font: 500 11px var(--mono); color: var(--muted); letter-spacing: .08em; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font: 500 12px var(--mono);
  color: var(--faint);
  margin-left: 10px;
}
.breadcrumb-sep { color: var(--border); font-size: 14px; line-height: 1; font-weight: 300; }
.breadcrumb-current { color: var(--faint); font: 500 12px var(--mono); }
.theme-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; flex-shrink: 0;
  border: 1.5px solid var(--txt);
  border-radius: 0;
  background: transparent;
  color: var(--txt);
  cursor: pointer;
  transition: background .12s;
}
.theme-btn:hover { background: var(--border-soft); }
.theme-btn svg { width: 16px; height: 16px; }
.theme-btn .icon-moon { display: block; }
.theme-btn .icon-sun  { display: none;  }
[data-theme="dark"] .theme-btn .icon-moon { display: none;  }
[data-theme="dark"] .theme-btn .icon-sun  { display: block; }

/* ─── Page Wrapper & Card ────────────────────────────────────────── */
.page-wrap { flex: 1; }
.wrap { max-width: 940px; margin: 0 auto; padding: 0 24px; width: 100%; }
.card { padding: 40px 0 56px; }

/* ─── Tool Hero (kicker + title) ─────────────────────────────────── */
.tool-kicker {
  margin: 0 0 8px;
  display: flex; align-items: center; gap: 10px;
  font: 600 11px var(--mono);
  color: var(--accent);
  letter-spacing: .14em;
  text-transform: uppercase;
}
.tool-kicker .pk-tag {
  display: inline-flex; align-items: center; gap: 7px;
  color: var(--muted);
  cursor: help;
}
.hero-text h1 { margin: 0 0 6px; font-size: 30px; font-weight: 700; letter-spacing: -.02em; }
.hero-text p  { margin: 0; font-size: 14px; color: var(--muted); }

/* ─── Privacy key marker (ringed square) ─────────────────────────── */
.pk-dot {
  width: 5px; height: 5px;
  flex-shrink: 0;
  margin: 2px;
  display: inline-block;
}
.pk-dot--local  { background: var(--pk-local);  box-shadow: 0 0 0 2.5px rgba(46,158,99,.22); }
.pk-dot--api    { background: var(--pk-api);    box-shadow: 0 0 0 2.5px rgba(201,148,20,.22); }
.pk-dot--stored { background: var(--pk-stored); box-shadow: 0 0 0 2.5px rgba(59,130,196,.22); }

/* ─── Buttons ────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 26px;
  border: 2px solid var(--txt);
  border-radius: 0;
  font: 600 14px var(--sans);
  letter-spacing: .04em;
  cursor: pointer;
  white-space: nowrap;
  transition: background .12s, border-color .12s, opacity .15s, transform .1s;
}
.btn:active:not(:disabled) { transform: scale(0.98); }
.btn:disabled { opacity: .6; cursor: not-allowed; transform: none; }
.btn svg { width: 16px; height: 16px; flex-shrink: 0; }
.btn-primary { background: var(--txt); color: var(--card); }
.btn-primary:not(:disabled):hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 4px 6px;
}
.btn-ghost:not(:disabled):hover { color: var(--txt); }

/* ─── Inputs ─────────────────────────────────────────────────────── */
.input-group {
  flex: 1;
  display: flex; align-items: center;
  background: var(--card);
  border: 2px solid var(--txt);
  border-radius: 0;
  padding: 0 14px;
  gap: 10px;
  transition: border-color .15s;
}
.input-group:focus-within { border-color: var(--accent); }
.input-group .search-icon { width: 16px; height: 16px; color: var(--muted); flex-shrink: 0; }
.input-group input {
  border: 0; outline: 0;
  padding: 13px 0;
  font: 15px var(--mono);
  flex: 1;
  min-width: 0;
  background: transparent;
  color: var(--txt);
}
.input-group input::placeholder { color: var(--faint); }

/* ─── Spinner ────────────────────────────────────────────────────── */
@keyframes spin { to { transform: rotate(360deg); } }
.spinner {
  width: 15px; height: 15px; flex-shrink: 0;
  border: 2.5px solid rgba(128,128,128,.3);
  border: 2.5px solid color-mix(in srgb, currentColor 28%, transparent);
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin .65s linear infinite;
}

/* ─── Pills (status text, ledger style) ──────────────────────────── */
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  font: 600 12px var(--mono);
  letter-spacing: .08em;
}
.pill-success { color: var(--success); }
.pill-danger  { color: var(--danger); }
.pill-warn    { color: var(--pk-api); }


/* ─── Tool Page Patterns (search row, status, copy buttons) ──────── */
.search { margin-top: 24px; display: flex; gap: 10px; }
.meta-row {
  margin-top: 14px;
  display: flex; align-items: center; gap: 12px;
  flex-wrap: wrap; min-height: 22px;
}
.msg { font-size: 13px; color: var(--muted); }
.pill-info    { color: var(--accent); }
.pill-neutral { color: var(--muted); }
.copy-wrap { display: flex; align-items: flex-start; gap: 6px; }
.copy-val  { display: inline; }
.copy-val.break { word-break: break-all; }
.copy-btn {
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  width: 22px; height: 22px;
  border: 1px solid var(--border);
  background: var(--card);
  cursor: pointer;
  color: var(--muted);
  transition: color .15s;
}
.copy-btn:hover { color: var(--txt); }
.copy-btn svg { width: 11px; height: 11px; pointer-events: none; }

/* ─── Site Footer ────────────────────────────────────────────────── */
.site-footer {
  background: var(--card);
  border-top: 1px solid var(--border);
  padding: 0;
  margin-top: 20px;
}
.site-footer-inner {
  max-width: 1360px;
  margin: 0 auto;
  padding: 14px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-brand {
  display: flex; align-items: center; gap: 8px;
  font: 500 11px var(--mono);
  letter-spacing: .08em;
  color: var(--muted);
  text-transform: uppercase;
}
.footer-back {
  display: inline-flex; align-items: center; gap: 6px;
  font: 600 11px var(--mono);
  letter-spacing: .06em;
  color: var(--accent);
  cursor: pointer;
  transition: opacity .15s;
  text-transform: uppercase;
}
.footer-back:hover { opacity: .75; }
.footer-back svg { width: 13px; height: 13px; }
.footer-about { font: 500 11px var(--mono); color: var(--muted); letter-spacing: .08em; transition: color .15s; }
.footer-about:hover { color: var(--txt); }
.footer-txt  { font: 500 11px var(--mono); color: var(--muted); letter-spacing: .08em; }

/* ─── History (shared across tools) ──────────────────────────────── */
.history-wrap { margin-top: 36px; padding-top: 16px; border-top: 2px solid var(--txt); }
.history-wrap h2 {
  font: 600 11px var(--mono);
  color: var(--txt);
  text-transform: uppercase;
  letter-spacing: .14em;
  margin: 0 0 8px;
  display: flex; align-items: center; gap: 8px;
}
.history-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.history-table th {
  background: transparent;
  color: var(--faint);
  font: 600 10px var(--mono);
  text-transform: uppercase;
  letter-spacing: .12em;
  padding: 7px 4px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.history-table td {
  padding: 8px 4px;
  border-bottom: 1px dotted var(--border);
  color: var(--txt);
  vertical-align: middle;
}
.history-domain {
  font: 500 13px var(--mono);
  cursor: pointer;
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.history-domain:hover { opacity: .75; }
.history-time { color: var(--muted); font-size: 12px; white-space: nowrap; }
.history-clear { margin-top: 8px; display: flex; justify-content: flex-end; }
.history-clear button {
  background: none; border: none;
  color: var(--muted);
  font: 500 11px var(--mono);
  letter-spacing: .06em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 2px 0;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.history-clear button:hover { color: var(--txt); }

/* ─── Shared Responsive ──────────────────────────────────────────── */
@media (max-width: 900px) {
  .site-header-inner { padding: 0 20px; }
  .site-footer-inner { padding: 14px 20px; }
}
@media (max-width: 640px) {
  .wrap { padding: 0 16px; }
  .search { flex-direction: column; }
  .card { padding: 28px 0 40px; }
  .hero-text h1 { font-size: 24px; }
  .breadcrumb-current { display: none; }
}