:root {
  --nd-surface-0: #030609;
  --nd-surface-1: #081017;
  --nd-surface-2: #10232d;
  --nd-accent: #3ff3ff;
  --nd-danger: #ff3f8a;
  --nd-primary: #ffb347;
  --nd-text-1: #eafcff;
  --nd-text-2: #a8cbd5;
  --nd-text-3: #718f99;
  --nd-border: #285462;
  --nd-glow: 0 0 18px #3ff3ff55;
  --nd-glow-danger: 0 0 18px #ff3f8a55;
  --nd-radius-sm: 3px;
  --nd-radius-md: 6px;
  --nd-radius-lg: 10px;
  --nd-space-1: 4px;
  --nd-space-2: 8px;
  --nd-space-3: 12px;
  --nd-space-4: 16px;
  --nd-space-5: 24px;
  --nd-space-6: 32px;
  --nd-font-display: "Chakra Petch", ui-monospace, SFMono-Regular, Consolas, monospace;
  --nd-font-heading: "Chakra Petch", ui-monospace, SFMono-Regular, Consolas, monospace;
  --nd-font-label: ui-monospace, SFMono-Regular, Consolas, monospace;
  --nd-font-body: ui-monospace, SFMono-Regular, Consolas, monospace;
  --nd-size-display: 24px;
  --nd-size-heading: 20px;
  --nd-size-label: 10px;
  --nd-size-body: 12px;
  --nd-phone-size-title: 18px;
  --nd-phone-size-body: 13px;
  --nd-phone-size-label: 11px;
  --nd-phone-size-button: 44px;
}

.nd-panel {
  min-width: 0;
  padding: var(--nd-space-4);
  border: 1px solid var(--nd-border);
  border-radius: var(--nd-radius-md);
  background: linear-gradient(145deg, var(--nd-surface-2), var(--nd-surface-1) 72%);
  box-shadow: inset 0 1px #3ff3ff12, 0 12px 32px #0008;
  color: var(--nd-text-1);
  font: var(--nd-size-body)/1.5 var(--nd-font-body);
}

.nd-button,
.nd-tab,
.nd-icon-button {
  box-sizing: border-box;
  display: inline-flex;
  min-width: 40px;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  gap: var(--nd-space-2);
  padding: 0 var(--nd-space-3);
  border: 1px solid var(--nd-border);
  border-radius: var(--nd-radius-sm);
  background: var(--nd-surface-1);
  color: var(--nd-text-1);
  font: 700 var(--nd-size-label)/1.2 var(--nd-font-label);
  letter-spacing: .04em;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 120ms ease, background-color 120ms ease, box-shadow 120ms ease, color 120ms ease;
}

.nd-button--primary {
  border-color: #ffb347;
  background: linear-gradient(180deg, #50351a, #2a1d12);
  color: #ffe0a8;
  box-shadow: 0 0 14px #ffb34733;
}

.nd-button--secondary {
  border-color: #3ff3ff88;
  color: var(--nd-accent);
}

.nd-button--quiet {
  border-color: transparent;
  background: transparent;
  color: var(--nd-text-2);
}

.nd-button:hover,
.nd-tab:hover,
.nd-icon-button:hover {
  border-color: var(--nd-accent);
  box-shadow: var(--nd-glow);
}

.nd-button--primary:hover { border-color: var(--nd-primary); box-shadow: 0 0 18px #ffb34766; }
.nd-button--quiet:hover { color: var(--nd-accent); }

.nd-tab {
  border-color: transparent;
  border-bottom-color: var(--nd-border);
  border-radius: var(--nd-radius-sm) var(--nd-radius-sm) 0 0;
  background: transparent;
  color: var(--nd-text-2);
}

.nd-tab[aria-selected="true"] {
  border-color: #3ff3ff66;
  border-bottom-color: var(--nd-accent);
  background: #0b2029;
  color: var(--nd-accent);
  box-shadow: inset 0 2px var(--nd-accent);
}

.nd-stat {
  display: grid;
  gap: var(--nd-space-1);
  padding: var(--nd-space-2) var(--nd-space-3);
  border: 1px solid #28546299;
  border-radius: var(--nd-radius-sm);
  background: #061118;
  color: var(--nd-text-3);
  font: var(--nd-size-label)/1.3 var(--nd-font-label);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.nd-stat strong { color: var(--nd-text-1); font: 700 16px/1.2 var(--nd-font-heading); }

.nd-chip {
  display: inline-flex;
  min-height: 24px;
  align-items: center;
  gap: var(--nd-space-1);
  padding: 2px var(--nd-space-2);
  border: 1px solid #3ff3ff66;
  border-radius: 999px;
  background: #062029;
  color: var(--nd-accent);
  font: 700 var(--nd-size-label)/1.2 var(--nd-font-label);
}

.nd-icon-button { width: 40px; padding: 0; font-size: 16px; }

.nd-button:focus-visible,
.nd-tab:focus-visible,
.nd-icon-button:focus-visible {
  outline: 2px solid var(--nd-accent);
  outline-offset: 3px;
  box-shadow: var(--nd-glow);
}

@media (pointer: coarse) {
  .nd-button,
  .nd-tab,
  .nd-icon-button { min-width: 44px; min-height: 44px; }
  .nd-icon-button { width: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  .nd-button,
  .nd-tab,
  .nd-icon-button { transition: none; }
}