/* ============================================
   INSTANETS.COM — "SIGNAL" DESIGN SYSTEM
   Brand: Emjay · instanets.com
   Concept: a live diagnostic console — tools that
   actually compute in front of you, not a brochure.
   ============================================ */

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

:root {
  --bg: #06070a;
  --bg2: #0a0c12;
  --bg3: #11151d;
  --bg4: #1a2230;
  --border: rgba(139,149,168,0.10);
  --border2: rgba(139,149,168,0.20);
  --text: #f5f7fa;
  --text2: #aab4c8;
  --text3: #7a85a0;
  --signal: #2dd4d4;
  --signal-dim: rgba(45,212,212,0.10);
  --signal-glow: rgba(45,212,212,0.35);
  --pulse: #ff5a3c;
  --pulse-dim: rgba(255,90,60,0.12);
  --green: #2dd4a0;
  --amber: #f5a623;
  --red: #ff5a5a;
  --font: 'Space Grotesk', sans-serif;
  --mono: 'JetBrains Mono', monospace;
  --radius: 6px;
  --radius-sm: 4px;
}

* , *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }

body {
  font-family: var(--font);
  background-color: var(--bg);
  background-image:
    repeating-linear-gradient(0deg, rgba(255,255,255,0.012) 0px, transparent 1px, transparent 2px),
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(45,212,212,0.06), transparent);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ===== Signal pulse — the signature element ===== */
.signal-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--pulse);
  position: relative;
  flex-shrink: 0;
}
.signal-pulse::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid var(--pulse);
  opacity: 0;
  animation: signal-ring 2.4s ease-out infinite;
}
@keyframes signal-ring {
  0% { transform: scale(0.6); opacity: 0.7; }
  70% { transform: scale(2.2); opacity: 0; }
  100% { opacity: 0; }
}

/* ===== Site Header ===== */
.site-header {
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg2);
  position: sticky;
  top: 0;
  z-index: 100;
  flex-wrap: wrap;
  gap: 12px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.site-logo-mark {
  width: 34px;
  height: 34px;
  background: var(--bg4);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--mono);
  color: var(--signal);
  flex-shrink: 0;
}

.site-logo-text {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-logo-text .by {
  color: var(--text2);
  font-weight: 400;
  font-family: var(--mono);
  font-size: 12px;
}

.site-logo-sub {
  font-size: 10px;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-top: 2px;
  font-family: var(--mono);
}

.site-nav {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.site-nav a {
  font-size: 11px;
  font-family: var(--mono);
  padding: 6px 11px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  color: var(--text2);
  background: transparent;
  text-decoration: none;
  transition: all 0.15s;
  white-space: nowrap;
}

.site-nav a:hover { background: var(--bg4); color: var(--text); border-color: var(--border2); }
.site-nav a.current { background: var(--signal-dim); border-color: rgba(45,212,212,0.3); color: var(--signal); }

.header-badges { display: flex; gap: 6px; align-items: center; }

.badge {
  font-size: 11px;
  font-family: var(--mono);
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border2);
  color: var(--text2);
  background: var(--bg3);
  letter-spacing: 0.3px;
}

.badge.green { color: var(--green); border-color: rgba(45,212,160,0.25); background: rgba(45,212,160,0.06); }

.badge.primary-trust {
  font-size: 12px;
  font-weight: 600;
  padding: 7px 14px;
  color: var(--bg);
  border: 1px solid var(--pulse);
  background: var(--pulse);
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.badge.primary-trust .signal-pulse {
  background: var(--bg);
}
.badge.primary-trust .signal-pulse::before {
  border-color: var(--bg);
}

/* ===== Tool intro / SEO description block ===== */
.tool-intro {
  padding: 22px 24px 4px;
  max-width: 880px;
}

.tool-intro .eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--signal);
  text-transform: uppercase;
  letter-spacing: 1.2px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.tool-intro h1 {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.4px;
  margin-bottom: 8px;
  color: #d8dde6;
}

.tool-intro p {
  font-size: 13.5px;
  color: var(--text2);
  line-height: 1.65;
  max-width: 620px;
}

/* ===== Shared buttons ===== */
.btn-primary {
  padding: 12px 20px;
  background: var(--signal);
  border: 1px solid var(--signal);
  border-radius: var(--radius-sm);
  color: var(--bg);
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-primary:hover { background: #3ee0e0; box-shadow: 0 0 0 3px var(--signal-dim); }
.btn-primary:active { transform: scale(0.98); }
.btn-primary.copied, .btn-primary.success { background: var(--green); border-color: var(--green); }
.btn-primary:disabled { opacity: 0.35; cursor: not-allowed; box-shadow: none; }

.btn-secondary {
  padding: 12px 16px;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text2);
  font-family: var(--mono);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-secondary:hover { background: var(--bg4); color: var(--text); border-color: var(--signal); }

.tool-btn {
  padding: 7px 13px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border2);
  background: var(--bg3);
  color: var(--text2);
  font-family: var(--mono);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.tool-btn:hover { background: var(--bg4); color: var(--text); border-color: var(--signal); }
.tool-btn svg { width: 13px; height: 13px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; }

/* ===== Card / panel ===== */
.panel {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

/* ===== Site Footer ===== */
.site-footer {
  padding: 14px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg2);
  font-size: 11px;
  color: var(--text3);
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  font-family: var(--mono);
}

.footer-left { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.footer-link { color: var(--text3); text-decoration: none; transition: color 0.15s; }
.footer-link:hover { color: var(--signal); }

.feedback-row { display: flex; align-items: center; gap: 8px; }
.feedback-btn {
  width: 26px; height: 26px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border2);
  background: var(--bg3);
  cursor: pointer;
  font-size: 13px;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.15s;
}
.feedback-btn:hover { background: var(--bg4); border-color: var(--signal); transform: scale(1.08); }

.theme-btn {
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border2);
  background: var(--bg3);
  color: var(--text2);
  font-size: 10px;
  font-family: var(--mono);
  cursor: pointer;
}
.theme-btn:hover { background: var(--bg4); color: var(--text); }

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--bg4);
  border: 1px solid var(--signal);
  border-radius: var(--radius-sm);
  padding: 10px 20px;
  font-size: 12px;
  font-family: var(--mono);
  color: var(--text);
  opacity: 0;
  transition: all 0.25s;
  z-index: 1000;
  pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ===== Light theme override ===== */
body.light {
  --bg: #f6f7f9;
  --bg2: #ffffff;
  --bg3: #eef0f3;
  --bg4: #e2e5ea;
  --border: rgba(20,30,45,0.08);
  --border2: rgba(20,30,45,0.15);
  --text: #0a0c12;
  --text2: #4f5870;
  --text3: #8b95a8;
}

/* ===== Scrollbars ===== */
textarea::-webkit-scrollbar, .scroll::-webkit-scrollbar { width: 4px; }
textarea::-webkit-scrollbar-thumb, .scroll::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 2px; }

/* ===== Related tools ===== */
.related-tools { padding: 0 24px 28px; max-width: 1100px; margin: 0 auto; width: 100%; }
.related-tools h3 {
  font-size: 11px; color: var(--text3); text-transform: uppercase; letter-spacing: 1px;
  margin-bottom: 12px; font-family: var(--mono);
}
.related-grid { display: flex; gap: 8px; flex-wrap: wrap; }
.related-grid a {
  color: var(--text2); text-decoration: none; font-size: 12px; font-family: var(--mono);
  padding: 8px 14px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg3);
  transition: all 0.15s;
}
.related-grid a:hover { border-color: var(--signal); color: var(--signal); }