/* ── Spinner ───────────────────────────────────────────────────── */
.loader {
  border: 4px solid rgba(168, 85, 247, 0.1);
  border-left-color: #d8b4fe;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  animation: spin 1s linear infinite;
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Glassmorphism ─────────────────────────────────────────────── */
.glass-panel {
  background: rgba(17, 24, 39, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.05);
}
.glass-card {
  background: rgba(31, 41, 55, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.glass-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

/* ── Page transition animations ───────────────────────────────── */
@keyframes pageOut {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(-8px); }
}
@keyframes pageIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
#app.page-leaving {
  animation: pageOut 0.18s ease forwards;
  pointer-events: none;
}
#app.page-entering {
  animation: pageIn 0.26s ease forwards;
}

/* ── Content fade-in ───────────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeIn 0.4s ease-out forwards; }

/* ── Result pre-block ──────────────────────────────────────────── */
.result-pre {
  white-space: pre-wrap;
  word-break: break-all;
  font-family: 'Courier New', Courier, monospace;
  background-color: rgba(0, 0, 0, 0.3);
  color: #e5e7eb;
  padding: 1rem;
  border-radius: 0.375rem;
  max-height: 500px;
  overflow-y: auto;
  font-size: 0.875rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: inset 0 2px 4px 0 rgba(0, 0, 0, 0.3);
}

/* ── Scrollbar ─────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: rgba(31, 41, 55, 0.5); }
::-webkit-scrollbar-thumb { background: #4b5563; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #6b7280; }

/* ── Navigation ────────────────────────────────────────────────── */
nav ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 0.5rem; }
nav a {
  color: #d1d5db;
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  transition: all 0.2s ease;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
  display: inline-block;
}
nav a:hover {
  color: #fff;
  background: rgba(168, 85, 247, 0.2);
  border-color: rgba(168, 85, 247, 0.4);
  box-shadow: 0 0 15px rgba(168, 85, 247, 0.1);
}
nav a.active-link {
  background: rgba(168, 85, 247, 0.3);
  color: #fff;
  border-color: #a855f7;
}

/* ── Header ────────────────────────────────────────────────────── */
header {
  background: rgba(31, 41, 55, 0.4);
  backdrop-filter: blur(10px);
  padding: 1.5rem;
  margin-bottom: 2rem;
  border-radius: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  flex-direction: column;
  gap: 0;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -1px rgba(0,0,0,.06);
}
header h1 { background-clip: text; }

/* ── Header top row (title + hamburger) ────────────────────────── */
.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ── Hamburger button ──────────────────────────────────────────── */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  padding: 8px 10px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #d1d5db;
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
}
header.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
header.nav-open .nav-toggle span:nth-child(2) { opacity: 0; transform: scaleX(0); }
header.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile nav ────────────────────────────────────────────────── */
#main-nav {
  display: none;
  padding-top: 1rem;
  margin-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
header.nav-open #main-nav { display: block; }

/* ── Desktop nav ───────────────────────────────────────────────── */
@media (min-width: 768px) {
  header { flex-direction: row; align-items: center; justify-content: space-between; gap: 1rem; }
  .header-top { flex: 0 0 auto; }
  .nav-toggle { display: none; }
  #main-nav { display: block !important; padding-top: 0; margin-top: 0; border-top: none; }
}

/* ── Text gradient ─────────────────────────────────────────────── */
.text-gradient {
  background: linear-gradient(to right, #c084fc, #e879f9);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.glitch-text:hover {
  text-shadow: 2px 2px 0 rgba(168,85,247,.4), -2px -2px 0 rgba(236,72,153,.4);
}

/* ── Copy button ───────────────────────────────────────────────── */
.copy-btn {
  display: inline-flex;
  align-items: center;
  font-size: 0.65rem;
  padding: 0.15rem 0.5rem;
  border-radius: 0.3rem;
  border: 1px solid rgba(168, 85, 247, 0.35);
  color: #a78bfa;
  background: rgba(168, 85, 247, 0.1);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
  white-space: nowrap;
}
.copy-btn:hover { background: rgba(168, 85, 247, 0.25); color: #c4b5fd; }
.copy-btn.copied { border-color: rgba(52,211,153,.4); color: #34d399; background: rgba(52,211,153,.1); }

/* ── Stop button ───────────────────────────────────────────────── */
.stop-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  padding: 0.25rem 0.75rem;
  border-radius: 0.375rem;
  border: 1px solid rgba(248,113,113,.4);
  color: #f87171;
  background: rgba(248,113,113,.1);
  cursor: pointer;
  transition: all 0.15s ease;
}
.stop-btn:hover { background: rgba(248,113,113,.2); }

/* ── Home page — IP link ────────────────────────────────────────── */
#ip-address-link {
  cursor: pointer;
  text-decoration: none;
  position: relative;
  display: inline-block;
  transition: color 0.3s ease;
}
#ip-address-link::after {
  content: '';
  position: absolute;
  width: 100%;
  transform: scaleX(0);
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: #d8b4fe;
  transform-origin: bottom right;
  transition: transform 0.25s ease-out;
}
#ip-address-link:hover::after { transform: scaleX(1); transform-origin: bottom left; }

/* ── Home page — Traceroute output ─────────────────────────────── */
#traceroute-output pre, .result-pre {
  white-space: pre-wrap;
  word-break: break-all;
  font-family: 'Courier New', Courier, monospace;
  background-color: rgba(0,0,0,.3);
  color: #e5e7eb;
  padding: 1rem;
  border-radius: 0.375rem;
  max-height: 400px;
  overflow-y: auto;
  font-size: 0.875rem;
  border: 1px solid rgba(255,255,255,.05);
  box-shadow: inset 0 2px 4px 0 rgba(0,0,0,.3);
}
#traceroute-output .hop-line { margin-bottom: .25rem; padding-left: .5rem; border-left: 2px solid transparent; transition: border-left-color .3s; }
#traceroute-output .hop-line:hover { border-left-color: #a855f7; background: rgba(255,255,255,.02); }
#traceroute-output .hop-number { display: inline-block; width: 30px; text-align: right; margin-right: 15px; color: #6b7280; font-weight: bold; }
#traceroute-output .hop-ip { color: #60a5fa; font-weight: 500; }
#traceroute-output .hop-hostname { color: #c084fc; }
#traceroute-output .hop-rtt { color: #34d399; margin-left: 8px; font-size: .85em; }
#traceroute-output .hop-timeout { color: #f87171; }
#traceroute-output .info-line { color: #fbbf24; font-style: italic; }
#traceroute-output .error-line { color: #f87171; font-weight: bold; border-left: 3px solid #f87171; padding-left: 10px; }
#traceroute-output .end-line { color: #d8b4fe; font-weight: bold; margin-top: 15px; text-transform: uppercase; letter-spacing: .05em; border-top: 1px solid rgba(255,255,255,.1); padding-top: 10px; }

/* ── Home page — Maps ───────────────────────────────────────────── */
#map { height: 300px; }
#lookup-map { height: 250px; }

/* ── ASN page — Graph ───────────────────────────────────────────── */
#graph-container { width: 100%; height: 600px; background: rgba(0,0,0,.3); border-radius: .75rem; border: 1px solid rgba(255,255,255,.06); overflow: hidden; position: relative; }
#graph-svg { width: 100%; height: 100%; cursor: grab; }
#graph-svg:active { cursor: grabbing; }
.node-center circle { fill: #a855f7; stroke: #d8b4fe; stroke-width: 2.5; }
.node-upstream circle { fill: #3b82f6; stroke: #93c5fd; stroke-width: 1.5; }
.node-downstream circle { fill: #10b981; stroke: #6ee7b7; stroke-width: 1.5; }
.node-tier1 circle { fill: #6b7280; stroke: #9ca3af; stroke-width: 1.5; }
.node text { fill: #e5e7eb; font-size: 11px; font-family: 'Courier New',monospace; pointer-events: none; text-anchor: middle; }
.node:hover circle { filter: brightness(1.4); cursor: pointer; }
.link { stroke: rgba(255,255,255,.12); stroke-linecap: round; }
.link-upstream { stroke: rgba(59,130,246,.35); }
.link-tier1 { stroke: rgba(107,114,128,.3); stroke-dasharray: 4 3; }
.link-downstream { stroke: rgba(16,185,129,.35); }
#graph-tooltip { position: absolute; pointer-events: none; background: rgba(17,24,39,.95); backdrop-filter: blur(8px); border: 1px solid rgba(168,85,247,.4); border-radius: .5rem; padding: .6rem .9rem; font-size: 12px; color: #e5e7eb; max-width: 220px; z-index: 50; opacity: 0; transition: opacity .15s; }
.prefix-tag { display: inline-block; font-family: monospace; font-size: 11px; background: rgba(168,85,247,.15); color: #c084fc; border: 1px solid rgba(168,85,247,.3); border-radius: 4px; padding: 2px 6px; margin: 2px; }
.ixp-row { border-bottom: 1px solid rgba(255,255,255,.05); }
.ixp-row:last-child { border-bottom: none; }

.hidden { display: none !important; }