/* ===========================================================
   Dendrite RevShell — design tokens
   =========================================================== */
:root {
  --ink-0: #0F1113;
  --ink-1: #14171A;
  --ink-2: #1B1F23;
  --ink-3: #2A2F35;
  --ink-4: #4A5158;
  --text-hi: #E8E6E1;
  --text-mid: #A9AFB6;
  --text-low: #6B7178;
  --signal: #5EEAD4;
  --signal-dim: #2D7A6E;
  --warn: #F2A65A;
  --danger: #E8696B;

  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;

  --radius: 6px;
  --border: 1px solid var(--ink-3);
}

* { box-sizing: border-box; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--ink-0);
  color: var(--text-hi);
  font-family: var(--font-display);
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--signal-dim);
  color: var(--ink-0);
}

a { color: var(--signal); }

button {
  font-family: inherit;
}

/* ===========================================================
   Header
   =========================================================== */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 22px clamp(16px, 4vw, 48px);
  border-bottom: var(--border);
  background: linear-gradient(180deg, var(--ink-1) 0%, var(--ink-0) 100%);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  font-size: 26px;
  line-height: 1;
  flex-shrink: 0;
  /* tint the emoji green: desaturate, then push hue back in with sepia+hue-rotate */
  filter: grayscale(1) brightness(0.9) sepia(1) hue-rotate(95deg) saturate(4.5);
}

.brand-name {
  margin: 0;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.04em;
  color: var(--text-hi);
}

.brand-sub {
  color: var(--signal);
  font-weight: 500;
}

.header-tag {
  margin: 0;
  font-size: 13px;
  color: var(--text-low);
  font-family: var(--font-mono);
}

.header-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.social-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  color: var(--text-mid);
  transition: color 0.15s ease, background 0.15s ease;
}

.social-link svg {
  width: 16px;
  height: 16px;
}

.social-link:hover {
  color: var(--signal);
  background: var(--ink-2);
}

/* ===========================================================
   Config bar (IP / Port — the signature interaction)
   =========================================================== */
.config-bar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: flex-end;
  gap: 18px;
  flex-wrap: wrap;
  padding: 18px clamp(16px, 4vw, 48px);
  background: rgba(15, 17, 19, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: var(--border);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--signal);
  text-transform: uppercase;
}

.field input {
  background: var(--ink-2);
  border: var(--border);
  border-radius: var(--radius);
  color: var(--text-hi);
  font-family: var(--font-mono);
  font-size: 16px;
  padding: 10px 12px;
  min-width: 180px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field input:focus-visible {
  border-color: var(--signal);
  box-shadow: 0 0 0 3px rgba(94, 234, 212, 0.15);
}

.connector {
  display: flex;
  align-items: center;
  padding-bottom: 11px;
}

.wire {
  width: 56px;
  height: 14px;
  overflow: visible;
}

#pulse-dot {
  opacity: 0;
}

#pulse-dot.is-active {
  animation: pulse-travel 0.9s ease-out;
}

@keyframes pulse-travel {
  0%   { opacity: 1; transform: translateX(0); }
  85%  { opacity: 1; }
  100% { opacity: 0; transform: translateX(64px); }
}

.ghost-btn {
  background: transparent;
  border: var(--border);
  color: var(--text-mid);
  border-radius: var(--radius);
  padding: 10px 16px;
  font-size: 13px;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
  margin-left: auto;
}

.ghost-btn:hover,
.ghost-btn[aria-expanded="true"] {
  border-color: var(--signal);
  color: var(--signal);
}

/* ===========================================================
   Category filter
   =========================================================== */
.category-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px clamp(16px, 4vw, 48px) 0;
}

.cat-pill {
  background: var(--ink-2);
  border: var(--border);
  color: var(--text-mid);
  border-radius: 999px;
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: all 0.15s ease;
}

.cat-pill:hover {
  border-color: var(--ink-4);
  color: var(--text-hi);
}

.cat-pill.is-active {
  background: var(--signal-dim);
  border-color: var(--signal);
  color: var(--ink-0);
  font-weight: 600;
}

/* ===========================================================
   Listener panel
   =========================================================== */
.listener-panel {
  margin: 16px clamp(16px, 4vw, 48px) 0;
  border: var(--border);
  border-radius: var(--radius);
  background: var(--ink-1);
  overflow: hidden;
}

.listener-panel-inner {
  padding: 18px 20px 20px;
}

.listener-panel h2 {
  margin: 0 0 4px;
  font-size: 15px;
}

.panel-sub {
  margin: 0 0 14px;
  font-size: 13px;
  color: var(--text-low);
}

.listener-list {
  display: grid;
  gap: 10px;
}

.listener-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 12px;
  background: var(--ink-2);
  border: var(--border);
  border-radius: var(--radius);
}

.listener-item-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.listener-name {
  font-size: 12px;
  color: var(--text-mid);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.listener-cmd {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-hi);
  white-space: pre-wrap;
  word-break: break-all;
}

.listener-notes {
  font-size: 12px;
  color: var(--text-low);
}

/* ===========================================================
   Shell grid + cards
   =========================================================== */
.shell-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 14px;
  padding: 20px clamp(16px, 4vw, 48px) 48px;
}

.shell-card {
  border: var(--border);
  border-radius: var(--radius);
  background: var(--ink-1);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.15s ease;
}

.shell-card:hover {
  border-color: var(--ink-4);
}

.shell-card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.shell-name {
  font-weight: 600;
  font-size: 14px;
  color: var(--text-hi);
}

.shell-cat-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--signal);
  text-transform: uppercase;
  white-space: nowrap;
  padding-top: 2px;
}

.payload-box {
  position: relative;
  background: var(--ink-0);
  border: 1px solid var(--ink-3);
  border-radius: var(--radius);
  padding: 12px 44px 12px 12px;
}

.payload-text {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--text-hi);
  white-space: pre-wrap;
  word-break: break-all;
}

.copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ink-2);
  border: var(--border);
  border-radius: 5px;
  color: var(--text-mid);
  cursor: pointer;
  transition: all 0.15s ease;
}

.copy-btn:hover {
  border-color: var(--signal);
  color: var(--signal);
}

.copy-btn svg {
  width: 14px;
  height: 14px;
}

.shell-notes {
  font-size: 12px;
  color: var(--text-low);
  line-height: 1.5;
}

.encode-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.encode-btn {
  background: transparent;
  border: 1px solid var(--ink-3);
  color: var(--text-low);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 5px 10px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.encode-btn:hover {
  border-color: var(--warn);
  color: var(--warn);
}

.empty-state {
  text-align: center;
  color: var(--text-low);
  padding: 60px 20px;
  font-family: var(--font-mono);
  font-size: 13px;
}

/* ===========================================================
   Footer + toast
   =========================================================== */
.site-footer {
  border-top: var(--border);
  padding: 20px clamp(16px, 4vw, 48px) 36px;
}

.site-footer p {
  margin: 0;
  font-size: 12px;
  color: var(--text-low);
  font-family: var(--font-mono);
  max-width: 70ch;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--ink-2);
}

.footer-brand {
  font-size: 12px;
  color: var(--text-low);
  font-family: var(--font-mono);
}

.footer-brand strong {
  color: var(--text-mid);
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  background: var(--signal);
  color: var(--ink-0);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 999px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
  z-index: 50;
}

.toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ===========================================================
   Responsive
   =========================================================== */
@media (max-width: 560px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .header-right {
    align-items: flex-start;
    width: 100%;
  }
  .config-bar {
    align-items: stretch;
  }
  .field input {
    min-width: 0;
    width: 100%;
  }
  .connector {
    display: none;
  }
  .ghost-btn {
    margin-left: 0;
    width: 100%;
  }
  .shell-grid {
    grid-template-columns: 1fr;
  }
}