/* ═══════════════════════════════════════════════════════════════
   RNS.MOSCOW — RNode Flasher
   ═══════════════════════════════════════════════════════════════ */

:root {
  color-scheme: dark;
  --bg:           #0a0e0a;
  --bg-card:      #0c130c;
  --bg-elevated:  #0e1a0e;
  --bg-nav:       rgba(10, 14, 10, 0.92);
  --bg-monitor:   #050c05;

  --green:        #00cc44;
  --green-bright: #39ff14;
  --green-dim:    rgba(0, 204, 68, 0.55);
  --green-ghost:  rgba(0, 204, 68, 0.08);
  --green-glow:   rgba(0, 204, 68, 0.25);

  --amber:        #f5a623;
  --amber-dim:    rgba(245, 166, 35, 0.65);

  --red:          #cc4444;

  --text:         #b8d4b8;
  --text-bright:  #d4edd4;
  --text-dim:     #506650;
  --text-muted:   #3a4e3a;

  --border:       rgba(0, 204, 68, 0.18);
  --border-hover: rgba(0, 204, 68, 0.48);

  --font:         'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  --nav-h:        52px;
  --radius:       3px;
  --tr:           0.18s ease;
}

[data-theme="light"] {
  color-scheme: light;
  --bg:           #f2f5f2;
  --bg-card:      #ffffff;
  --bg-elevated:  #edf2ed;
  --bg-nav:       rgba(242, 245, 242, 0.94);
  --bg-monitor:   #f7faf7;

  --green:        #009933;
  --green-bright: #00cc44;
  --green-dim:    rgba(0, 153, 51, 0.65);
  --green-ghost:  rgba(0, 153, 51, 0.08);
  --green-glow:   rgba(0, 153, 51, 0.20);

  --amber:        #b36a00;
  --amber-dim:    rgba(179, 106, 0, 0.75);

  --red:          #bb2222;

  --text:         #1e361e;
  --text-bright:  #0d1f0d;
  --text-dim:     #3d5c3d;
  --text-muted:   #7a9a7a;

  --border:       rgba(0, 100, 40, 0.38);
  --border-hover: rgba(0, 100, 40, 0.65);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 14px; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle, rgba(0, 204, 68, 0.09) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
  z-index: 0;
}
[data-theme="light"] body::before {
  background-image: radial-gradient(circle, rgba(0, 153, 51, 0.10) 1px, transparent 1px);
}

a { color: var(--green); text-decoration: none; transition: color var(--tr); }
a:hover { color: var(--green-bright); }
img, svg { display: block; max-width: 100%; }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--green-dim); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--green); }

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ═══════════════════════════════════════════════════════════════
   NAV
   ═══════════════════════════════════════════════════════════════ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  background: transparent;
  transition: background var(--tr), border-bottom var(--tr);
}
#navbar.scrolled {
  background: var(--bg-nav);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: calc(1080px + 48px);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 0;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-bright);
  flex-shrink: 0;
  margin-right: 14px;
  text-decoration: none;
  transition: color var(--tr);
}
.nav-logo:hover { color: var(--green-bright); }
.logo-icon { flex-shrink: 0; image-rendering: -webkit-optimize-contrast; }
.logo-text {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: inherit;
}
.nav-subtitle {
  font-size: 0.75rem;
  color: var(--green-dim);
  letter-spacing: 0.14em;
  flex: 1;
}
.nav-git-link {
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 6px 10px;
  border-radius: var(--radius);
  transition: color var(--tr), background var(--tr);
  text-decoration: none;
}
.nav-git-link:hover { color: var(--green); background: var(--green-ghost); }

.theme-toggle {
  font-family: var(--font);
  font-size: 1rem;
  background: var(--green-ghost);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 8px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: color var(--tr), border-color var(--tr), background var(--tr);
  flex-shrink: 0;
  margin-left: 8px;
  line-height: 1;
}
[data-theme="light"] .theme-toggle {
  color: var(--text-bright);
}
.theme-toggle:hover {
  color: var(--green);
  border-color: var(--border);
  background: var(--green-ghost);
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  margin-left: 12px;
}
.lang-sep {
  color: var(--text-muted);
  font-size: 0.8rem;
}
.lang-btn {
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid transparent;
  padding: 4px 8px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--tr);
}
.lang-btn.active {
  color: var(--green);
  border-color: var(--green-dim);
  background: var(--green-ghost);
}
.lang-btn:hover:not(.active) {
  color: var(--text-bright);
  border-color: var(--border);
}

/* ═══════════════════════════════════════════════════════════════
   MAIN
   ═══════════════════════════════════════════════════════════════ */
main {
  padding-top: calc(var(--nav-h) + 48px);
  padding-bottom: 60px;
  min-height: 100vh;
}

/* ═══════════════════════════════════════════════════════════════
   HEADER
   ═══════════════════════════════════════════════════════════════ */
.flasher-header {
  margin-bottom: 36px;
}
.header-prefix {
  font-size: 0.75rem;
  color: var(--green-dim);
  letter-spacing: 0.14em;
  margin-bottom: 10px;
}
.header-title {
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin-bottom: 10px;
  text-shadow: 0 0 30px rgba(0,204,68,0.15);
}
.header-desc {
  font-size: 0.86rem;
  color: var(--text-dim);
  max-width: 580px;
  line-height: 1.75;
}

/* ═══════════════════════════════════════════════════════════════
   BROWSER WARNING
   ═══════════════════════════════════════════════════════════════ */
.browser-warning {
  padding: 14px 16px;
  background: rgba(245, 166, 35, 0.08);
  border: 1px solid rgba(245, 166, 35, 0.3);
  border-radius: var(--radius);
  color: var(--amber);
  font-size: 0.82rem;
  margin-bottom: 24px;
  line-height: 1.6;
}

/* ═══════════════════════════════════════════════════════════════
   GRID
   ═══════════════════════════════════════════════════════════════ */
.flasher-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  grid-template-rows: auto auto;
  align-items: start;
  grid-template-areas:
    "select  monitor"
    "nodecfg monitor";
  gap: 20px;
}
.config-panel    { grid-area: select; }
.node-cfg-panel  { grid-area: nodecfg; }
.monitor-panel   { grid-area: monitor; }

/* ═══════════════════════════════════════════════════════════════
   PANELS
   ═══════════════════════════════════════════════════════════════ */
.panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.cfg-main {
  position: relative;
}
.cfg-panes-wrap {
  position: relative;
}
.cfg-inactive-cross {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100' preserveAspectRatio='none'%3E%3Cline x1='0' y1='0' x2='100' y2='100' stroke='rgba(0,204,68,0.22)' stroke-width='1.5' stroke-dasharray='4 5' vector-effect='non-scaling-stroke'/%3E%3Cline x1='100' y1='0' x2='0' y2='100' stroke='rgba(0,204,68,0.22)' stroke-width='1.5' stroke-dasharray='4 5' vector-effect='non-scaling-stroke'/%3E%3C/svg%3E");
  background-size: 100% 100%;
  pointer-events: none;
  z-index: 2;
}
[data-theme="light"] .cfg-inactive-cross {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100' preserveAspectRatio='none'%3E%3Cline x1='0' y1='0' x2='100' y2='100' stroke='rgba(0,100,40,0.32)' stroke-width='1.5' stroke-dasharray='4 5' vector-effect='non-scaling-stroke'/%3E%3Cline x1='100' y1='0' x2='0' y2='100' stroke='rgba(0,100,40,0.32)' stroke-width='1.5' stroke-dasharray='4 5' vector-effect='non-scaling-stroke'/%3E%3C/svg%3E");
}

.panel-inactive-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 3;
}
.panel-inactive-label {
  font-size: 0.69rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 5px 14px;
}

.panel-title {
  font-size: 0.72rem;
  color: var(--amber-dim);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 10px 16px;
  background: rgba(0, 204, 68, 0.04);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.panel-title::before { content: '# '; }

/* ═══════════════════════════════════════════════════════════════
   CONFIG PANEL
   ═══════════════════════════════════════════════════════════════ */
.config-body {
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.field-label {
  font-size: 0.69rem;
  color: var(--green-dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.select-wrapper { position: relative; }
.select-wrapper::after {
  content: '▾';
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--green-dim);
  pointer-events: none;
}
.field-select {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.82rem;
  padding: 9px 30px 9px 12px;
  cursor: pointer;
  transition: border-color var(--tr);
  outline: none;
}
.field-select:focus { border-color: var(--green-dim); }
.field-select:disabled { color: var(--text-muted); cursor: not-allowed; }
.field-select option, .field-select optgroup { background: #0c130c; color: var(--text); }
[data-theme="light"] .field-select option,
[data-theme="light"] .field-select optgroup { background: #ffffff; }

.firmware-hint {
  font-size: 0.69rem;
  color: var(--text-muted);
  padding: 6px 10px;
  background: rgba(0,0,0,0.25);
  border-radius: var(--radius);
  border: 1px solid rgba(0, 204, 68, 0.07);
  word-break: break-all;
  line-height: 1.5;
}
[data-theme="light"] .firmware-hint {
  background: rgba(0, 0, 0, 0.04);
  border-color: rgba(0, 153, 51, 0.12);
}
.firmware-hint .hint-key { color: var(--text-muted); }
.firmware-hint .hint-val { color: var(--green-dim); }
.firmware-hint a.hint-val { text-decoration: underline; text-underline-offset: 2px; }
.firmware-hint a.hint-val:hover { color: var(--green); }

/* ═══════════════════════════════════════════════════════════════
   FLASH BUTTON
   ═══════════════════════════════════════════════════════════════ */
.btn-flash {
  width: 100%;
  padding: 13px 20px;
  background: var(--green);
  color: #050c05;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background var(--tr), box-shadow var(--tr);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.btn-flash:hover:not(:disabled) {
  background: var(--green-bright);
  box-shadow: 0 0 22px var(--green-glow);
}
.btn-flash:disabled {
  background: rgba(0, 204, 68, 0.12);
  color: var(--text-muted);
  cursor: not-allowed;
  box-shadow: none;
}
.btn-flash-inner {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ═══════════════════════════════════════════════════════════════
   PROGRESS
   ═══════════════════════════════════════════════════════════════ */
.btn-dfu-select {
  width: 100%;
  padding: 8px 0;
  background: rgba(100, 160, 255, 0.07);
  border: 1px solid rgba(100, 160, 255, 0.35);
  border-radius: 6px;
  color: rgba(120, 180, 255, 0.9);
  font-family: inherit;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.btn-dfu-select:hover {
  background: rgba(100, 160, 255, 0.14);
  border-color: rgba(100, 160, 255, 0.6);
}
.progress-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}
.progress-bar {
  flex: 1;
  height: 3px;
  background: rgba(0, 204, 68, 0.1);
  border-radius: 2px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--green);
  border-radius: 2px;
  transition: width 0.25s ease;
  box-shadow: 0 0 6px var(--green-glow);
}
.progress-text {
  font-size: 0.72rem;
  color: var(--green-dim);
  min-width: 38px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* ═══════════════════════════════════════════════════════════════
   STATUS BADGE
   ═══════════════════════════════════════════════════════════════ */
.status-badge {
  font-size: 0.78rem;
  padding: 8px 12px;
  border-radius: var(--radius);
  border: 1px solid;
  line-height: 1.5;
}
.status-badge.success {
  color: var(--green-bright);
  background: rgba(0, 204, 68, 0.08);
  border-color: rgba(0, 204, 68, 0.3);
}
.status-badge.error {
  color: #ff6666;
  background: rgba(204, 68, 68, 0.08);
  border-color: rgba(204, 68, 68, 0.3);
}
.status-badge.warn {
  color: var(--amber);
  background: rgba(204, 153, 0, 0.08);
  border-color: rgba(204, 153, 0, 0.3);
}
.status-badge.success::before { content: '✓ '; }
.status-badge.error::before   { content: '✗ '; }
.status-badge.warn::before    { content: '! '; }

/* ═══════════════════════════════════════════════════════════════
   ADVANCED TOOLS
   ═══════════════════════════════════════════════════════════════ */
.panel-sep {
  height: 1px;
  background: rgba(0, 204, 68, 0.08);
}
.advanced-toggle {
  font-size: 0.69rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  transition: color var(--tr);
  user-select: none;
}
.advanced-toggle:hover { color: var(--text-dim); }
.adv-arrow { font-size: 0.6rem; transition: transform var(--tr); }
.adv-arrow.open { transform: rotate(90deg); }

.advanced-body {
  padding: 8px 16px 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.adv-checkbox {
  flex-basis: 100%;
  display: flex;
  align-items: center;
  gap: 7px;
  margin-top: 2px;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-dim);
  cursor: pointer;
}
.adv-checkbox input { cursor: pointer; accent-color: var(--green); }
.btn-sm {
  font-family: var(--font);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 12px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-dim);
  cursor: pointer;
  transition: color var(--tr), border-color var(--tr), background var(--tr);
}
.btn-sm:hover:not(:disabled) {
  color: var(--green);
  border-color: var(--green-dim);
  background: var(--green-ghost);
}
.btn-sm:disabled { opacity: 0.38; cursor: not-allowed; }
.connect-btn { min-width: 7rem; }
.connect-btn .disconnect-label { display: none; }
.connect-btn.is-connected {
  color: #0a1a0f;
  background: rgba(0, 204, 68, 0.85);
  border-color: rgba(0, 204, 68, 0.7);
  box-shadow: 0 0 14px rgba(0, 204, 68, 0.5), 0 0 4px rgba(0, 204, 68, 0.4);
}
.connect-btn.is-connected:hover:not(:disabled) {
  color: rgba(220, 80, 80, 0.9);
  border-color: rgba(204, 68, 68, 0.5);
  background: rgba(204, 68, 68, 0.06);
  box-shadow: none;
}
.connect-btn.is-connected:hover:not(:disabled) .connect-label { display: none; }
.connect-btn.is-connected:hover:not(:disabled) .disconnect-label { display: inline; }
.btn-sm.danger { border-color: rgba(204, 68, 68, 0.3); color: rgba(204, 68, 68, 0.65); }
.btn-sm.danger:hover:not(:disabled) {
  color: #ff6666;
  border-color: rgba(204, 68, 68, 0.55);
}
.btn-sm.orange { border-color: rgba(204, 120, 30, 0.35); color: rgba(220, 130, 40, 0.8); }
.btn-sm.orange:hover:not(:disabled) {
  color: #ffaa44;
  border-color: rgba(220, 130, 40, 0.6);
  background: rgba(204, 68, 68, 0.07);
}
.btn-sm.btn-blue { border-color: rgba(100, 160, 255, 0.3); color: rgba(120, 180, 255, 0.85); }
.btn-sm.btn-blue:hover:not(:disabled) {
  color: rgba(160, 210, 255, 0.95);
  border-color: rgba(100, 160, 255, 0.55);
  background: rgba(100, 160, 255, 0.08);
}
/* ═══════════════════════════════════════════════════════════════
   NODE CONFIGURATION PANEL
   ═══════════════════════════════════════════════════════════════ */
.tab-bar {
  display: flex;
  border-bottom: 1px solid var(--border);
  padding: 0 1rem;
}
.tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-family: var(--font);
  font-size: 0.7rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 0.35rem 0.65rem;
  margin-bottom: -1px;
  transition: color var(--tr), border-color var(--tr);
}
.tab:hover { color: var(--text-dim); }
.tab.active { color: var(--green); border-bottom-color: var(--green); }
.tab-panes-disabled {
  opacity: 0.35;
  pointer-events: none;
  user-select: none;
}

.tab-pane {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.5rem 1rem 0.65rem;
}
.cfg-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.35rem 0.75rem;
}
.cfg-grid-2col {
  grid-template-columns: 1fr 1fr;
}
.cfg-field { display: flex; flex-direction: column; gap: 0.15rem; }
.cfg-field-wide { grid-column: 1 / -1; }
.cfg-label { font-size: 0.65rem; color: var(--text-muted); letter-spacing: 0.04em; }
.cfg-input {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.78rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  outline: none;
  width: 100%;
  box-sizing: border-box;
  transition: border-color var(--tr);
}
.cfg-input:focus { border-color: var(--green-dim); }
.cfg-input:disabled { opacity: 0.45; }
.cfg-range { width: 100%; accent-color: var(--green); cursor: pointer; }
.cfg-range:disabled { opacity: 0.45; }
.cfg-row { display: flex; gap: 0.35rem; flex-wrap: wrap; }
.cfg-actions { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-top: 0.1rem; align-items: center; }
.cfg-notice {
  font-size: 0.68rem;
  color: var(--amber-dim);
  border: 1px solid rgba(245, 166, 35, 0.2);
  background: rgba(245, 166, 35, 0.05);
  border-radius: 4px;
  padding: 0.3rem 0.5rem;
}
.port-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
}
.port-badge {
  font-size: 0.62rem; font-weight: 600; letter-spacing: 0.04em;
  border-radius: 3px; padding: 0.15rem 0.4rem;
  background: rgba(0, 204, 68, 0.13); color: var(--green);
  border: 1px solid rgba(0,204,68,0.28);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.chip-badge {
  display: inline-block;
  font-size: 0.56rem; font-weight: 600; letter-spacing: 0.05em;
  border-radius: 3px; padding: 0.05rem 0.3rem;
  background: rgba(100, 160, 255, 0.12); color: rgba(120, 180, 255, 0.85);
  border: 1px solid rgba(100, 160, 255, 0.25);
  text-transform: none; margin-left: 0.4rem; vertical-align: middle;
}
.bt-pin-display {
  margin-top: 1rem;
  padding: 0.8rem 1rem;
  border: 1px solid rgba(100, 160, 255, 0.25);
  border-radius: var(--radius);
  background: rgba(100, 160, 255, 0.06);
  text-align: center;
}
.bt-pin-label {
  font-size: 0.58rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 0.4rem;
}
.bt-pin-code {
  font-size: 1.8rem; font-weight: 700; letter-spacing: 0.35em;
  color: rgba(140, 200, 255, 0.95);
}
.fw-badge {
  font-size: 0.62rem; font-weight: 600; letter-spacing: 0.04em;
  border-radius: 3px; padding: 0.15rem 0.4rem;
  background: rgba(100, 160, 255, 0.12); color: rgba(120, 180, 255, 0.85);
  border: 1px solid rgba(100, 160, 255, 0.25);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.tnc-badge {
  font-size: 0.68rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  border-radius: 3px; padding: 5px 12px;
  flex: 1; text-align: center;
}
.tnc-on  { background: rgba(0, 204, 68, 0.15); color: var(--green); border: 1px solid rgba(0,204,68,0.3); }
.tnc-off { background: rgba(204, 68, 68, 0.12); color: rgba(204,100,100,0.9); border: 1px solid rgba(204,68,68,0.25); }

.btn-sm.active {
  color: var(--green);
  border-color: var(--green-dim);
  background: var(--green-ghost);
}

.screen-dump {
  margin-top: 0.85rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.screen-label {
  padding: 0.2rem 0.2rem 0.2rem 0.5rem;
  font-size: 0.65rem;
  color: var(--text-muted);
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.screen-actions { display: flex; gap: 2px; }
.btn-icon.auto-active { color: var(--green); }
.screen-img {
  display: block;
  width: 100%;
  image-rendering: pixelated;
  background: #000;
}

/* ═══════════════════════════════════════════════════════════════
   SPINNER
   ═══════════════════════════════════════════════════════════════ */
.spinner {
  display: inline-block;
  width: 13px; height: 13px;
  border: 2px solid rgba(5, 12, 5, 0.25);
  border-top-color: #050c05;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ═══════════════════════════════════════════════════════════════
   SERIAL MONITOR
   ═══════════════════════════════════════════════════════════════ */
.monitor-panel {
  display: flex;
  flex-direction: column;
  height: calc(100vh - var(--nav-h) - 120px);
  min-height: 420px;
  max-height: 680px;
}
.btn-icon {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.72rem;
  padding: 2px 7px;
  border-radius: var(--radius);
  transition: color var(--tr), background var(--tr);
  font-family: var(--font);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.btn-icon:hover { color: var(--text-dim); background: rgba(0, 204, 68, 0.06); }

.monitor-body {
  flex: 1;
  overflow-y: auto;
  padding: 14px 16px 10px;
  font-size: 0.77rem;
  line-height: 1.72;
  background: var(--bg-monitor);
}
.monitor-empty {
  color: var(--text-muted);
  font-style: italic;
  padding: 4px 0;
}
.monitor-empty::before { content: '// '; }

.log-line {
  display: flex;
  align-items: baseline;
  white-space: pre-wrap;
  word-break: break-all;
}
.log-pfx { flex-shrink: 0; white-space: pre; min-width: 22px; }
.log-txt { flex: 1; }

.log-line.cmd    .log-pfx { color: var(--green); }
.log-line.cmd    .log-txt { color: var(--text-bright); }
.log-line.info   .log-pfx { color: var(--text-muted); }
.log-line.info   .log-txt { color: var(--text-dim); }
.log-line.ok     .log-pfx { color: var(--green-bright); }
.log-line.ok     .log-txt { color: var(--green); }
.log-line.err    .log-pfx { color: var(--red); }
.log-line.err    .log-txt { color: #ff6868; }
[data-theme="light"] .log-line.err .log-txt { color: #c02020; }
.log-line.warn   .log-pfx { color: var(--amber); }
.log-line.warn   .log-txt { color: var(--amber-dim); }
.log-line.prog   .log-pfx { color: var(--text-muted); }
.log-line.prog   .log-txt { color: var(--green); font-variant-numeric: tabular-nums; }

.log-cursor { height: 1.5em; display: flex; align-items: center; padding-left: 1px; }
.cursor-blink {
  color: var(--green-bright);
  animation: cursor-blink 0.9s step-end infinite;
}
@keyframes cursor-blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* ═══════════════════════════════════════════════════════════════
   INFO STRIP
   ═══════════════════════════════════════════════════════════════ */
.info-strip {
  margin-top: 20px;
  padding: 13px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.75rem;
  color: var(--text-muted);
}
.info-item { display: flex; align-items: center; gap: 7px; }
.info-item a { font-size: 0.75rem; }

/* ═══════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════ */
footer {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  background: rgba(6, 10, 6, 0.95);
  margin-top: 40px;
}
[data-theme="light"] footer {
  background: rgba(230, 240, 230, 0.95);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-copy { font-size: 0.7rem; color: var(--text-muted); line-height: 1.65; }
.footer-copy a { font-size: 0.7rem; }

/* ═══════════════════════════════════════════════════════════════
   HW INFO PANE
   ═══════════════════════════════════════════════════════════════ */
.hw-info-pane {
  min-height: 120px;
}
.hw-info-layout {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
}
.hw-device-visual {
  flex-shrink: 0;
  width: 88px;
}
.hw-device-placeholder {
  width: 88px;
  height: 88px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}
.hw-device-img {
  width: 88px;
  height: 88px;
  object-fit: contain;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
}
.hw-info-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.hw-info-desc {
  font-size: 0.71rem;
  color: var(--text-dim);
  line-height: 1.65;
}
.hw-specs-table {
  width: 100%;
  border-collapse: collapse;
}
.hw-spec-key {
  font-size: 0.6rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.08rem 0.55rem 0.08rem 0;
  vertical-align: top;
  white-space: nowrap;
  width: 1%;
}
.hw-spec-val {
  font-size: 0.71rem;
  color: var(--text);
  padding: 0.08rem 0;
  vertical-align: top;
}
.hw-info-link {
  display: inline-block;
  align-self: flex-start;
  text-decoration: none;
}
.hw-info-empty {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-style: italic;
  padding: 0.25rem 0;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 860px) {
  .flasher-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    grid-template-areas: "select" "nodecfg" "monitor";
  }
  .monitor-panel { height: 420px; }
}
@media (max-width: 480px) {
  .header-title { font-size: 1.4rem; }
  main { padding-top: calc(var(--nav-h) + 24px); }
  .container { padding: 0 16px; }
}