/*
 * theme.css — NULLFIELD design tokens.
 * Instrument-housing terminal/brutalist: phosphor green on near-black,
 * riveted panels, warning-label yellow, hard offset shadows, 4px corners.
 * Opens DARK by default (:root). Light mode sits under html[data-theme="light"].
 */

:root {
  color-scheme: dark;

  --canvas: #0a0c0a;
  --surface: #232423;
  --surface-2: #191a19;
  --border: #3a4038;
  --border-strong: #5c6656;
  --ink: #d4e8d4;
  --muted: #839083;

  --accent: #3af23a;
  --accent-hover: #2fd12f;
  --accent-ink: #04170a;
  --accent-text: #3af23a;
  --accent-strong: #3af23a;
  --accent-soft: #122015;
  --accent-border: #2a6b2a;

  --success: #3af23a;
  --success-ink: #04170a;
  --success-soft: #122015;
  --success-strong: #3af23a;

  --warning: #f2c53a;
  --warning-ink: #241d02;
  --warning-soft: #2b230f;
  --warning-strong: #f2c53a;

  --danger: #ff3b3b;
  --danger-ink: #240404;
  --danger-soft: #2a0f0f;
  --danger-strong: #ff7a7a;

  --chart-1: #3af23a;
  --chart-2: #f2c53a;
  --chart-3: #ff5252;
  --chart-4: #3ac3f2;
  --chart-5: #f2883a;
  --chart-6: #839083;

  --font-display: "Oswald", ui-sans-serif, system-ui, sans-serif;
  --font-body: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  --font-sans: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --display-weight: 600;
  --display-tracking: 0em;
  --eyebrow-tracking: 0.08em;

  /* Shape: instrument housing — sharp corners, thick outlines, hard offset shadow. */
  --radius-btn: 4px;
  --radius-card: 4px;
  --radius-input: 4px;
  --radius-lg: 4px;
  --radius-xl: 4px;
  --border-w: 2px;
  --border-strong-w: 2px;
  --card-pad: 1.25rem;
  --caps: uppercase;
  --caps-tracking: 0.045em;
  --btn-weight: 600;
  --measure: 68ch;
  --shadow-btn: 3px 3px 0 0 rgba(0, 0, 0, 0.92);
  --shadow-card: 4px 4px 0 0 rgba(0, 0, 0, 0.85);
  --shadow-raised: 7px 7px 0 0 rgba(0, 0, 0, 0.85);

  /* App-owned tokens (--x-*). */
  --x-warn-yellow: #f2c53a;
  --x-thermal-cold: #3ac3f2;
  --x-thermal-mid: #f2c53a;
  --x-thermal-hot: #ff5252;
  --x-led-off: #3a4038;
  --x-rivet: #4a524a;
  --x-scan-track: #191a19;
  --x-phosphor-dim: color-mix(in srgb, var(--accent) 35%, var(--canvas));
}

html[data-theme="light"] {
  color-scheme: light;

  --canvas: #eef1ea;
  --surface: #ffffff;
  --surface-2: #e3e7dd;
  --border: #c7cdbe;
  --border-strong: #8b9482;
  --ink: #16210f;
  --muted: #4d5945;

  --accent: #157a15;
  --accent-hover: #0f6410;
  --accent-ink: #ffffff;
  --accent-text: #157a15;
  --accent-strong: #0f6410;
  --accent-soft: #dceedb;
  --accent-border: #9dc79d;

  --success: #157a15;
  --success-ink: #ffffff;
  --success-soft: #dceedb;
  --success-strong: #0f6410;

  --warning: #92650a;
  --warning-ink: #ffffff;
  --warning-soft: #f5e6c2;
  --warning-strong: #7a5407;

  --danger: #b91c1c;
  --danger-ink: #ffffff;
  --danger-soft: #f6d9d9;
  --danger-strong: #971616;

  --chart-1: #157a15;
  --chart-2: #92650a;
  --chart-3: #b91c1c;
  --chart-4: #0d7ea3;
  --chart-5: #a34e0d;
  --chart-6: #4d5945;

  --x-warn-yellow: #92650a;
  --x-thermal-cold: #0d7ea3;
  --x-thermal-mid: #92650a;
  --x-thermal-hot: #b91c1c;
  --x-led-off: #c7cdbe;
  --x-rivet: #8b9482;
  --x-scan-track: #e3e7dd;
  --x-phosphor-dim: color-mix(in srgb, var(--accent) 35%, var(--canvas));
}

/*
 * app.css — NULLFIELD's own screens: the side-rail shell, the field-notes
 * log tail, the live instrument panel, the spirit-box scanner, the case
 * folders and the sensor wiring diagram. Tokens only, from theme.css.
 */

/* ---- Shell -------------------------------------------------------------- */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.rail {
  width: 4.5rem;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  border-right: var(--border-w) solid var(--border);
  background: var(--surface);
  position: sticky;
  top: 0;
  align-self: flex-start;
  height: 100vh;
  overflow-y: auto;
}
@media (min-width: 768px) {
  .rail { width: 15rem; }
}

.rail-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  border-bottom: var(--border-w) solid var(--border);
  text-decoration: none;
  color: var(--ink);
  justify-content: center;
}
@media (min-width: 768px) {
  .rail-brand { justify-content: flex-start; }
}
.rail-brand:hover { text-decoration: none; }
.rail-brand-mark {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  flex-shrink: 0;
  background: var(--accent-soft);
  border: 2px solid var(--accent-border);
  color: var(--accent-strong);
}
.rail-brand-text { display: none; flex-direction: column; line-height: 1.15; }
@media (min-width: 768px) {
  .rail-brand-text { display: flex; }
}
.rail-brand-name { font-family: var(--font-display); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.95rem; }
.rail-brand-sub { font-family: var(--font-mono); font-size: 0.68rem; color: var(--muted); }

.rail-nav { display: flex; flex-direction: column; padding: 0.75rem 0.5rem; gap: 0.25rem; flex: 1; }
.rail-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.65rem;
  color: var(--muted);
  text-decoration: none;
  border: 2px solid transparent;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  transition: background-color 120ms var(--ease), color 120ms var(--ease), border-color 120ms var(--ease);
}
@media (min-width: 768px) {
  .rail-item { justify-content: flex-start; }
}
.rail-item:hover { color: var(--ink); background: var(--surface-2); text-decoration: none; }
.rail-item.is-active { color: var(--accent-strong); background: var(--accent-soft); border-color: var(--accent-border); }
.rail-item .icon { flex-shrink: 0; }
.rail-label { display: none; }
@media (min-width: 768px) {
  .rail-label { display: inline; }
}

.rail-foot { padding: 0.75rem; border-top: var(--border-w) solid var(--border); display: flex; justify-content: center; }

.app-main { flex: 1; min-width: 0; }
.app-content { min-width: 0; padding: 1.5rem 1.25rem 2rem; }
@media (min-width: 768px) {
  .app-content { padding: 2.25rem 2.5rem 2.5rem; }
}

.page-head { margin-bottom: 1.5rem; }
.page-title { font-family: var(--font-display); text-transform: uppercase; letter-spacing: 0.02em; font-size: 1.6rem; font-weight: 600; color: var(--ink); }
.page-sub { margin-top: 0.4rem; color: var(--muted); font-size: 0.92rem; }

/* ---- Field Notes footer -------------------------------------------------- */
.field-notes {
  border-top: 2px solid var(--border);
  background: var(--surface-2);
  padding: 0.65rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
@media (min-width: 768px) {
  .field-notes { padding: 0.65rem 2.5rem; }
}
.fn-line { display: flex; gap: 0.5rem; color: var(--muted); min-width: 0; }
.fn-time { color: var(--accent-strong); flex-shrink: 0; }
.fn-dash { flex-shrink: 0; }
.fn-msg { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
.fn-muted { color: var(--muted); font-style: italic; }

/* ---- Live Session console ------------------------------------------------ */
.console-panel { border: var(--border-w) solid var(--border); background: var(--surface); padding: 1.25rem; box-shadow: var(--shadow-card); }
.console-idle { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 0.35rem; padding: 2rem 1rem; }
.console-start-form { display: flex; flex-direction: column; gap: 1rem; align-items: stretch; margin-top: 1rem; width: 100%; max-width: 22rem; }

.console-status {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-bottom: 1.25rem;
  border-bottom: 2px solid var(--border);
  margin-bottom: 1.25rem;
}
@media (min-width: 560px) {
  .console-status { flex-direction: row; align-items: center; justify-content: space-between; }
}
.console-status-left { display: flex; flex-direction: column; gap: 0.6rem; }
@media (min-width: 420px) {
  .console-status-left { flex-direction: row; align-items: center; gap: 1rem; }
}
.console-case { display: flex; flex-direction: column; line-height: 1.25; min-width: 0; }
.console-case-name { font-family: var(--font-display); text-transform: uppercase; font-weight: 600; letter-spacing: 0.02em; }
.console-case-loc { color: var(--muted); font-size: 0.82rem; }

.console-timer { display: flex; align-items: baseline; gap: 0.5rem; font-family: var(--font-mono); margin-bottom: 1rem; }
.console-timer-label { text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.7rem; color: var(--muted); }
.console-timer-value { font-size: 1.15rem; color: var(--accent-text); font-weight: 600; }

.instrument-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
@media (min-width: 820px) {
  .instrument-grid { grid-template-columns: repeat(3, 1fr); }
}
.instrument { border: 2px solid var(--border); padding: 1rem; background: var(--surface-2); }
.instrument.is-alert { border-color: var(--danger); }
.instrument-head { display: flex; align-items: center; gap: 0.5rem; font-family: var(--font-mono); text-transform: uppercase; font-size: 0.72rem; letter-spacing: 0.05em; color: var(--muted); }
.instrument-value { font-family: var(--font-mono); font-size: 2rem; font-weight: 600; color: var(--ink); margin: 0.5rem 0; line-height: 1; }
.instrument-unit { font-size: 0.9rem; margin-left: 0.3rem; color: var(--muted); font-weight: 500; }
.instrument-note { margin-top: 0.6rem; font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); }
.instrument.is-alert .instrument-note { color: var(--danger-strong); }

.meter { display: flex; gap: 2px; height: 1.5rem; }
.meter-seg { flex: 1; background: var(--x-led-off); border: 1px solid var(--border); }
.meter-seg.is-lit { background: var(--accent); }
.meter-seg.is-lit.is-danger { background: var(--danger); }

.thermal-strip {
  position: relative;
  height: 1.5rem;
  border: 1px solid var(--border);
  background: linear-gradient(90deg, var(--x-thermal-cold), var(--x-thermal-mid), var(--x-thermal-hot));
}
.thermal-marker { position: absolute; top: -4px; width: 2px; height: calc(100% + 8px); background: var(--ink); transform: translateX(-1px); }
.thermal-marker::after {
  content: "";
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid var(--ink);
}

.capture-block { display: grid; grid-template-columns: 1fr; gap: 1.5rem; margin-top: 1.5rem; }
@media (min-width: 960px) {
  .capture-block { grid-template-columns: 1.1fr 1fr; }
}
.capture-form { display: flex; flex-direction: column; gap: 1rem; }
.capture-recent { display: flex; flex-direction: column; gap: 0.5rem; max-height: 22rem; overflow-y: auto; }
.capture-row {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  background: var(--surface-2);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}
@media (min-width: 640px) {
  .capture-row { display: grid; grid-template-columns: 5.5rem auto 1fr auto; align-items: center; gap: 0.75rem; }
  .capture-note { grid-column: 1 / -1; }
}
.capture-time { color: var(--muted); }
.capture-sensor { color: var(--accent-strong); white-space: nowrap; }
.capture-reading { font-weight: 600; }
.capture-note { color: var(--muted); font-size: 0.78rem; }

/* ---- Spirit Box ----------------------------------------------------------- */
.scan-track {
  position: relative;
  height: 1.75rem;
  border: 2px solid var(--border);
  background: var(--x-scan-track);
  overflow: hidden;
  background-image: repeating-linear-gradient(90deg, var(--border) 0 1px, transparent 1px 5%);
}
.scan-marker { position: absolute; top: -3px; bottom: -3px; width: 3px; background: var(--accent); box-shadow: 0 0 6px var(--accent); }
.scan-ticks { display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 0.68rem; color: var(--muted); margin-top: 0.35rem; }
.scan-readout-row { display: flex; flex-direction: column; gap: 1rem; margin-top: 1.25rem; }
@media (min-width: 480px) {
  .scan-readout-row { flex-direction: row; align-items: center; justify-content: space-between; }
}
.scan-readout { font-family: var(--font-mono); display: flex; align-items: baseline; gap: 0.4rem; }
.scan-readout-value { font-size: 2.2rem; font-weight: 600; color: var(--accent-text); line-height: 1; }
.scan-readout-unit { color: var(--muted); font-size: 0.9rem; }
.ptt-btn { min-width: 12rem; }
.scan-indicator { font-family: var(--font-mono); font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--accent-text); margin-top: 0.6rem; }

.fragment-log { margin-top: 1.5rem; border-top: 2px solid var(--border); padding-top: 1rem; }
.fragment-log-head,
.fragment-row {
  display: grid;
  grid-template-columns: 4rem 3rem 1fr 4.2rem;
  gap: 0.4rem;
  align-items: center;
}
@media (min-width: 560px) {
  .fragment-log-head,
  .fragment-row { grid-template-columns: 6rem 4rem 1fr 6rem; gap: 0.75rem; }
}
.fragment-log-head { font-family: var(--font-mono); text-transform: uppercase; font-size: 0.64rem; letter-spacing: 0.05em; color: var(--muted); padding: 0 0.25rem 0.5rem; }
.fragment-row { padding: 0.5rem 0.25rem; border-top: 1px solid var(--border); font-family: var(--font-mono); font-size: 0.82rem; }
.fragment-time,
.fragment-freq { color: var(--muted); font-size: 0.72rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.fragment-text { min-width: 0; overflow-wrap: anywhere; }
.fragment-clear .fragment-text { color: var(--accent-text); font-weight: 600; }
.fragment-noise .fragment-text { color: var(--muted); font-style: italic; }

/* ---- Evidence Log ---------------------------------------------------------- */
.evidence-controls { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.25rem; }
@media (min-width: 700px) {
  .evidence-controls { flex-direction: row; align-items: flex-end; gap: 1.5rem; }
}
.add-evidence-card,
.new-case-card { margin-top: 1.5rem; }

/* ---- Case Files: folders, not cards ---------------------------------------- */
.folder-list { display: flex; flex-direction: column; gap: 0.75rem; }
.folder-row {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  border: 2px solid var(--border);
  background: var(--surface);
  padding: 1rem;
}
@media (min-width: 760px) {
  .folder-row { flex-direction: row; align-items: center; }
}
.folder-row.folder-open { border-left: 6px solid var(--accent); }
.folder-row.folder-closed { border-left: 6px solid var(--border-strong); }
.folder-tab { display: grid; place-items: center; width: 2.5rem; height: 2.5rem; flex-shrink: 0; background: var(--accent-soft); color: var(--accent-strong); border: 2px solid var(--accent-border); }
.folder-body { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 0.6rem; }
@media (min-width: 760px) {
  .folder-body { flex-direction: row; align-items: center; justify-content: space-between; gap: 1rem; }
}
.folder-main { display: flex; flex-direction: column; min-width: 0; }
.folder-name { font-family: var(--font-display); text-transform: uppercase; font-weight: 600; letter-spacing: 0.02em; }
.folder-loc { color: var(--muted); font-size: 0.85rem; }
.folder-stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.5rem 1.25rem; align-items: center; }
@media (min-width: 560px) {
  .folder-stats { display: flex; flex-wrap: nowrap; gap: 1.25rem; }
}
.folder-stat { display: flex; flex-direction: column; font-family: var(--font-mono); }
.folder-stat-label { text-transform: uppercase; color: var(--muted); letter-spacing: 0.04em; font-size: 0.64rem; }
.folder-stat-value { color: var(--ink); font-size: 0.85rem; }
.folder-actions { display: flex; gap: 0.5rem; flex-shrink: 0; }
.folder-actions form { display: contents; }
@media (min-width: 760px) {
  .folder-actions { margin-left: auto; }
}

/* ---- Sensors & Calibration: a wiring diagram ------------------------------- */
.wiring-card-outer { padding-top: 1.5rem; }
.wiring-hub { display: flex; justify-content: center; margin-bottom: 1.5rem; }
.wiring-hub-node {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border: 2px solid var(--accent-border);
  background: var(--accent-soft);
  color: var(--accent-strong);
  padding: 0.6rem 1.25rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.78rem;
}
.wiring-list { position: relative; display: flex; flex-direction: column; gap: 1.25rem; padding-left: 1.5rem; }
.wiring-list::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: var(--x-rivet); }
.wiring-node { position: relative; }
.wiring-branch { position: absolute; left: -1.5rem; top: 50%; width: 1.5rem; height: 2px; background: var(--x-rivet); transform: translateY(-1px); }
.wiring-card {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  border: 2px solid var(--border);
  background: var(--surface-2);
  padding: 0.85rem 1rem;
  min-width: 0;
}
.wiring-icon { flex-shrink: 0; color: var(--muted); }
.wiring-info { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.wiring-name { font-family: var(--font-display); text-transform: uppercase; font-weight: 600; letter-spacing: 0.02em; font-size: 0.88rem; }
.wiring-detail { font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.wiring-card form { flex-shrink: 0; }

.led { width: 0.85rem; height: 0.85rem; border-radius: 50%; display: inline-block; flex-shrink: 0; border: 1px solid rgba(0, 0, 0, 0.4); }
.led-green { background: var(--success); box-shadow: 0 0 6px var(--success); }
.led-amber { background: var(--warning); box-shadow: 0 0 6px var(--warning); }
.led-red { background: var(--danger); box-shadow: 0 0 4px var(--danger); }

.wiring-legend { margin-top: 1.25rem; }
.legend-row { display: flex; align-items: center; gap: 0.6rem; font-family: var(--font-mono); font-size: 0.82rem; padding: 0.25rem 0; }