/* =====================================================================
Midstate — shared stylesheet for chat.html and explorer.html
---------------------------------------------------------------------
ABSOLUTE HYPER-MEGA-MINIMAL.

Pure ink on paper.
Zero hue. Zero shadow. Zero radius. Zero motion. Zero decorative fills.
Zero background changes on hover.

All state (live/spent, positive/negative, final/pending, active/inactive,
readable/not, hover/focus) is carried exclusively by:
- sign (+ / −)
- weight & style
- labels & values
- structural borders only
- underline on text links

Every variable name referenced by markup and inline JS is preserved exactly.
Accent/semantic tokens remain collapsed to ink/grey.
===================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@300;400;500;700&display=swap');

/* ── Design tokens ─────────────────────────────────────────────────── */
:root,
[data-theme="dark"] {
  --bg: #0a0a0a;
  --bg-alt: #141414;
  --bg-raised: #141414;
  --bg-panel: #161616;
  --msg-bg: #0f0f0f;
  --code-bg: #181818;
  --highlight: #1f1f1f;
  --warn-bg: #1f1f1f;
  --accent-bg: #1f1f1f;
  --green-bg: #1f1f1f;
  --red-bg: #1f1f1f;

  --border: #262626;
  --border-bright: #363636;

  --text-max: #f5f5f5;
  --text-main: #f5f5f5;
  --text-bright: #cfcfcf;
  --text: #9a9a9a;
  --text-muted: #9a9a9a;
  --text-faint: #5a5a5a;

  /* accent + semantic — collapsed to ink / grey */
  --accent: #f5f5f5;
  --accent-dim: #9a9a9a;
  --on-accent: #0a0a0a;
  --stark-accent: #f5f5f5;
  --link-color: #f5f5f5;
  --blue: #f5f5f5;
  --warn-accent: #9a9a9a;
  --green: #f5f5f5;
  --red: #9a9a9a;

  --radius: 0;
  --radius-sm: 0;
  --radius-xs: 0;
  --shadow: none;
}

[data-theme="light"] {
  --bg: #ffffff;
  --bg-alt: #ffffff;
  --bg-raised: #ffffff;
  --bg-panel: #fafafa;
  --msg-bg: #fbfbfb;
  --code-bg: #f4f4f4;
  --highlight: #efefef;
  --warn-bg: #efefef;
  --accent-bg: #efefef;
  --green-bg: #efefef;
  --red-bg: #efefef;

  --border: #e3e3e3;
  --border-bright: #cfcfcf;

  --text-max: #111111;
  --text-main: #111111;
  --text-bright: #383838;
  --text: #565656;
  --text-muted: #565656;
  --text-faint: #a2a2a2;

  --accent: #111111;
  --accent-dim: #565656;
  --on-accent: #ffffff;
  --stark-accent: #111111;
  --link-color: #111111;
  --blue: #111111;
  --warn-accent: #565656;
  --green: #111111;
  --red: #565656;

  --radius: 0;
  --radius-sm: 0;
  --radius-xs: 0;
  --shadow: none;
}

/* ── Base ──────────────────────────────────────────────────────────── */
* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  margin: 0;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

body.page-chat {
  height: 100vh;
  color: var(--text-main);
  font-family: 'Inter', -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.6;
}

body.page-explorer {
  height: 100vh;
  overflow: hidden;
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  line-height: 1.5;
}

.mono { font-family: 'JetBrains Mono', monospace; }

/* monochrome selection */
::selection { background: var(--accent); color: var(--on-accent); }

a:focus-visible,
button:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}

/* Scrollbars — square, hairline */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 0; }
::-webkit-scrollbar-thumb:hover { background: var(--text-faint); }

/* ── Shared chrome: buttons, theme toggle, status marks ────────────── */
.btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-main);
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 0;
  cursor: pointer;
  text-decoration: none;
  line-height: 1.4;
}
.btn:hover:not(:disabled) { border-color: var(--accent); }
.btn:disabled { color: var(--text-faint); cursor: not-allowed; }

.btn-primary {
  background: var(--accent);
  color: var(--on-accent);
  border-color: var(--accent);
  font-weight: 600;
}
.btn-primary:hover:not(:disabled) { border-color: var(--text-max); }

.nav-actions { display: flex; align-items: center; gap: 10px; }

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px;
  color: var(--text-muted);
  line-height: 0;
}
.theme-toggle:hover:not(:disabled) { color: var(--text-main); }
.theme-toggle svg { display: block; }
.theme-toggle .icon-moon { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: block; }

/* =====================================================================
CHAT (body.page-chat)
===================================================================== */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  flex-shrink: 0;
}

.brand {
  font-family: 'JetBrains Mono', monospace;
  font-size: 16px;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  color: var(--text-max);
}
/* static square mark — no pulse */
.brand-indicator {
  width: 6px;
  height: 6px;
  background-color: var(--stark-accent);
  border: 1px solid var(--border);
  border-radius: 0;
}

.workspace {
  display: flex;
  flex: 1;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  padding: 16px;
  gap: 20px;
  overflow: hidden;
}

.chat-column {
  flex: 2;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  height: 100%;
}
.header-desc { color: var(--text-muted); font-size: 14px; }

#chat-box {
  flex: 1;
  border: 1px solid var(--border);
  border-radius: 0;
  background: var(--bg-alt);
  padding: 12px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.msg {
  background: var(--msg-bg);
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 8px 12px;
  position: relative;
}
.msg:hover { border-color: var(--border-bright); }
.msg.is-reply { margin-left: 24px; border-left: 3px solid var(--border); }
.msg.pinged { border-left: 3px solid var(--stark-accent); background: var(--accent-bg); }

.msg-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
  font-size: 12px;
  font-family: 'JetBrains Mono', monospace;
}
.sender {
  color: var(--link-color);
  cursor: pointer;
  text-decoration: underline;
  text-decoration-color: transparent;
  font-weight: 500;
}
.sender:hover { text-decoration-color: currentColor; }
.time { color: var(--text-muted); font-variant-numeric: tabular-nums; }

.words { font-size: 15px; color: var(--text-main); letter-spacing: 0.2px; }

.reply-context {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 8px;
  font-family: 'JetBrains Mono', monospace;
}

.reply-btn {
  position: absolute;
  right: 16px;
  top: 10px;
  opacity: 0;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 2px 8px;
  border-radius: 0;
  font-size: 11px;
  cursor: pointer;
}
.msg:hover .reply-btn { opacity: 1; }
.reply-btn:hover { background: var(--highlight); color: var(--text-main); }

.composer {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

#active-reply {
  display: none;
  background: var(--highlight);
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--stark-accent);
  border-radius: 0;
  font-size: 13px;
  color: var(--text-main);
  justify-content: space-between;
  align-items: center;
}

.draft-container {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  min-height: 38px;
  padding: 6px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 0;
}
.draft-container:focus-within { border-color: var(--accent); }

.draft-word {
  background: var(--highlight);
  border: 1px solid var(--border);
  padding: 3px 8px;
  border-radius: 0;
  cursor: pointer;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--text-main);
}
.draft-word:hover {
  color: var(--warn-accent);
  border-color: var(--border-bright);
  text-decoration: line-through;
}

#chat-input {
  background: transparent;
  border: none;
  color: var(--text-main);
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  outline: none;
  flex-grow: 1;
  min-width: 150px;
  padding: 4px;
}
#chat-input::placeholder { color: var(--text-muted); }

.composer-controls { display: flex; justify-content: flex-end; gap: 8px; }

.dict-column {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 0;
  background: var(--bg-alt);
}
.dict-header {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
}
.dict-header h3 { font-size: 14px; font-weight: 600; color: var(--text-main); }

#dictionary-box {
  padding: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-content: flex-start;
}
.dict-btn {
  background: var(--bg);
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 4px 8px;
  cursor: pointer;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  border-radius: 0;
}
.dict-btn:hover:not(:disabled) {
  color: var(--text-main);
  border-color: var(--accent);
}
.dict-btn:disabled { opacity: 0.3; cursor: not-allowed; }

/* Chat attachments */
.draft-attachment {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: var(--code-bg);
  border: 1px solid var(--stark-accent);
  padding: 6px 8px;
  border-radius: 0;
  font-size: 12px;
  min-width: 0;
  max-width: 100%;
}
.draft-attachment-header { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.draft-attachment-label {
  color: var(--text-bright);
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.draft-attachment-remove {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0 6px;
  font-size: 16px;
  line-height: 1;
}
.draft-attachment-remove:hover { color: var(--text-max); }
.draft-attachment-value {
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-main);
  font-size: 11px;
  word-break: break-all;
  user-select: all;
  line-height: 1.5;
}

.msg-attachments { display: flex; flex-direction: column; gap: 6px; margin-top: 8px; }
.msg-attachment {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: var(--code-bg);
  border: 1px solid var(--border);
  padding: 6px 8px;
  border-radius: 0;
  cursor: pointer;
  min-width: 0;
  max-width: 100%;
}
.msg-attachment:hover { border-color: var(--border-bright); }
.msg-attachment.copied { border-color: var(--stark-accent); background: var(--accent-bg); }
.msg-attachment-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
}
.msg-attachment-status { color: var(--text-bright); }
.msg-attachment-value {
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-bright);
  font-size: 11px;
  word-break: break-all;
  user-select: all;
  line-height: 1.5;
}

@media (max-width: 900px) {
  .workspace { flex-direction: column; overflow: visible; height: auto; }
  .dict-column { flex: none; max-height: 400px; }
  #chat-box { height: 500px; flex: none; }
}

/* =====================================================================
EXPLORER (body.page-explorer)
===================================================================== */
.page-explorer a { color: var(--text-bright); cursor: pointer; text-decoration: none; }
.page-explorer a:hover { color: var(--accent); text-decoration: underline; }
.hl { background: var(--accent); color: var(--on-accent); padding: 0 2px; font-weight: 700; }

/* Header */
.hdr {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  flex-shrink: 0;
}
.hdr h1 { font-size: 14px; font-weight: 700; color: var(--text-max); letter-spacing: 2px; }
.hdr-right { display: flex; gap: 12px; color: var(--text); font-size: 10px; align-items: center; }
.hdr-right span { display: flex; align-items: center; gap: 4px; }
.hdr-right .label { color: var(--text-muted); }
.hdr-right .val { color: var(--text-bright); font-variant-numeric: tabular-nums; }
/* live = ink square, offline = grey square */
.live-dot { width: 5px; height: 5px; border-radius: 0; border: 1px solid var(--border); background: var(--green); }

/* Layout */
.layout { display: flex; flex: 1; min-height: 0; }
.sidebar {
  width: 200px;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  background: var(--bg);
}
.sidebar-section { padding: 8px 10px; border-bottom: 1px solid var(--border); }
.sidebar-section .title { font-size: 9px; color: var(--text-muted); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 4px; }
.metric { display: flex; justify-content: space-between; padding: 1px 0; }
.metric .k { color: var(--text-muted); }
.metric .v { color: var(--text-bright); font-variant-numeric: tabular-nums; }

.batch-list { flex: 1; overflow-y: auto; }
.batch-item {
  display: flex;
  justify-content: space-between;
  padding: 4px 10px;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  font-size: 11px;
}
.batch-item:hover { border-left: 2px solid var(--accent); }
.batch-item.active { background: var(--accent-bg); border-left: 2px solid var(--accent); }
.batch-item .num { color: var(--text-bright); font-variant-numeric: tabular-nums; }
.batch-item .txc { color: var(--text-faint); }

.main-panel { flex: 1; overflow-y: auto; padding: 12px; background: var(--bg-raised); }

/* Terminal */
.terminal {
  height: 120px;
  border-top: 1px solid var(--border-bright);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  background: var(--bg);
}
.term-log { flex: 1; overflow-y: auto; padding: 6px 10px; font-size: 10px; }
.term-line { padding: 0; }
.term-input-row {
  display: flex;
  align-items: center;
  border-top: 1px solid var(--border);
  padding: 4px 10px;
  background: var(--bg-panel);
}
.term-input-row:focus-within { border-top-color: var(--accent); }
.prompt { color: var(--accent-dim); margin-right: 8px; font-weight: 700; font-size: 11px; }
.term-input-row input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-max);
  font-family: inherit;
  font-size: 12px;
  outline: none;
}

/* Block view */
.block-hdr {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.block-hdr h2 { font-size: 14px; font-weight: 700; color: var(--text-max); }
.block-nav { display: flex; gap: 6px; }
.block-nav a {
  padding: 2px 8px;
  border: 1px solid var(--border-bright);
  border-radius: 0;
  font-size: 10px;
  color: var(--text);
}
.block-nav a:hover { border-color: var(--accent); color: var(--accent); }

.field { margin-bottom: 8px; }
.field .lbl { font-size: 9px; color: var(--text-muted); letter-spacing: 0.5px; text-transform: uppercase; margin-bottom: 2px; }
.field .hex { color: var(--text-bright); word-break: break-all; font-size: 10px; }
.field .hex a { font-size: 10px; }
.field .ascii { color: var(--text-faint); font-size: 9px; }
.field .ascii.readable { color: var(--green); }

.meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 6px;
  margin-bottom: 12px;
  padding: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 0;
}

/* Transaction cards */
.tx-card {
  border: 1px solid var(--border);
  margin-bottom: 8px;
  background: var(--bg-alt);
  border-radius: 0;
  overflow: hidden;
}
.tx-hdr {
  display: flex;
  justify-content: space-between;
  padding: 4px 8px;
  background: var(--code-bg);
  border-bottom: 1px solid var(--border);
  font-size: 11px;
}
.tx-type { font-weight: 700; color: var(--text-max); }
.tx-fee { color: var(--text-bright); }
.tx-body { padding: 8px; }
.tx-split { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.tx-col-title { font-size: 9px; color: var(--text-muted); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 6px; border-bottom: 1px solid var(--border); padding-bottom: 2px; }
.io-item { margin-bottom: 6px; padding-bottom: 6px; border-bottom: 1px dashed var(--border); }
.io-item:last-child { border-bottom: none; margin-bottom: 0; }
/* +N reads positive (ink), -N reads negative (grey); the sign carries it */
.val-badge {
  float: right;
  font-size: 10px;
  font-weight: 700;
  padding: 0 4px;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 0;
}
.val-badge.positive { color: var(--green); }
.val-badge.negative { color: var(--red); }
.val-badge.burn { color: var(--warn-accent); }

/* Coin status — live (ink) vs spent (faint); text label says which */
.coin-status {
  display: inline-block;
  font-size: 8px;
  padding: 0 3px;
  border-radius: 0;
  margin-left: 4px;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.coin-status.live { background: var(--green-bg); color: var(--green); border: 1px solid var(--border); }
.coin-status.spent { background: var(--code-bg); color: var(--text-faint); border: 1px solid var(--border); }
.coin-status.checking { background: var(--code-bg); color: var(--text-faint); border: 1px solid var(--border); }

/* Mempool view */
.mp-item {
  padding: 6px 8px;
  border: 1px solid var(--border);
  margin-bottom: 4px;
  background: var(--bg-alt);
  border-radius: 0;
}
.mp-type { font-weight: 700; color: var(--text-max); font-size: 11px; }

.tx-flow { display: flex; align-items: stretch; gap: 8px; margin-top: 6px; }
.tx-col { flex: 1; display: flex; flex-direction: column; gap: 4px; }
.tx-arrow { display: flex; align-items: center; color: var(--accent-dim); font-size: 14px; font-weight: bold; }
.badge-mix { background: var(--accent-bg); color: var(--text-max); border: 1px solid var(--border-bright); padding: 1px 4px; font-size: 9px; font-weight: 700; letter-spacing: 1px; border-radius: 0; margin-left: 8px; }
.badge-final { background: var(--green-bg); color: var(--text-max); border: 1px solid var(--border); padding: 1px 4px; font-size: 9px; border-radius: 0; }
.badge-pend { background: var(--warn-bg); color: var(--text-muted); border: 1px solid var(--border); padding: 1px 4px; font-size: 9px; border-radius: 0; }