*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0a0a0f;
  --surface: #13131a;
  --border: #1e1e2e;
  --accent: #7c3aed;
  --accent-light: #a855f7;
  --text: #e2e2f0;
  --muted: #6b6b8a;
  --clean: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  min-height: 100vh;
}

/* ---- Header ---- */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(10, 10, 15, 0.92);
  backdrop-filter: blur(12px);
  z-index: 100;
}

.logo {
  font-size: 1.25rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-light), #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

nav { display: flex; gap: 1.5rem; align-items: center; }
nav a { color: var(--muted); text-decoration: none; font-size: 0.9rem; transition: color 0.2s; }
nav a:hover { color: var(--text); }

.btn-outline {
  border: 1px solid var(--accent);
  color: var(--accent-light) !important;
  padding: 0.4rem 1rem;
  border-radius: 6px;
  transition: background 0.2s !important;
}
.btn-outline:hover { background: rgba(124,58,237,0.2) !important; }

#extension-badge {
  display: none;
  align-items: center;
  gap: 0.4rem;
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: var(--clean);
  font-size: 0.72rem;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-weight: 600;
}

/* ---- Hero ---- */
.hero {
  max-width: 680px;
  margin: 0 auto;
  padding: 4rem 1.5rem 2rem;
  text-align: center;
}

.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.highlight {
  background: linear-gradient(135deg, var(--accent-light), #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero > p {
  color: var(--muted);
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

/* ---- Checker box ---- */
.checker-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.input-row {
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 0.75rem;
  transition: border-color 0.2s;
}
.input-row:focus-within { border-color: var(--accent); }

.at {
  padding: 0 0.75rem;
  color: var(--muted);
  font-size: 1.1rem;
  font-weight: 600;
  user-select: none;
}

.input-row input {
  flex: 1;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1rem;
  padding: 0.75rem 0;
  outline: none;
}
.input-row input::placeholder { color: var(--muted); }

#check-btn {
  background: var(--accent);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
}
#check-btn:hover { background: var(--accent-light); }
#check-btn:disabled { opacity: 0.6; cursor: not-allowed; }

.sub { color: var(--muted); font-size: 0.8rem; }

/* ---- Ad slots ---- */
.ad-slot {
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: 8px;
  padding: 1rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.75rem;
  margin: 1.5rem 0;
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---- Results ---- */
.results {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

/* Score card */
.score-card {
  display: flex;
  align-items: center;
  gap: 2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  margin-bottom: 1.5rem;
  transition: border-color 0.4s;
}
.score-card.loading { opacity: 0.7; }
.score-card.error { border-color: rgba(239,68,68,0.4); }
.score-card.status-clean { border-color: rgba(34,197,94,0.4); }
.score-card.status-warning { border-color: rgba(245,158,11,0.4); }
.score-card.status-shadowbanned { border-color: rgba(239,68,68,0.5); }
.score-card.status-unknown { border-color: var(--border); }

.score-circle {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 3px solid var(--border);
  flex-shrink: 0;
  transition: border-color 0.4s;
}
.status-clean .score-circle { border-color: var(--clean); }
.status-warning .score-circle { border-color: var(--warning); }
.status-shadowbanned .score-circle { border-color: var(--danger); }

#score-number {
  font-size: 1.8rem;
  font-weight: 800;
  line-height: 1;
  transition: color 0.4s;
}
.status-clean #score-number { color: var(--clean); }
.status-warning #score-number { color: var(--warning); }
.status-shadowbanned #score-number { color: var(--danger); }
.error #score-number { color: var(--danger); }

.score-circle small { color: var(--muted); font-size: 0.7rem; }
.score-info h2 { font-size: 1.2rem; margin-bottom: 0.3rem; }
.score-info p { color: var(--muted); font-size: 0.9rem; }

/* Loading */
.loading-signals {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 2rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Signals */
.signals-list { margin-bottom: 1.5rem; }
.signals-list h3 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.signal {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  background: var(--surface);
  border: 1px solid var(--border);
}
.signal-ok    { border-left: 3px solid var(--clean); }
.signal-warning { border-left: 3px solid var(--warning); }
.signal-danger  { border-left: 3px solid var(--danger); }
.signal-info    { border-left: 3px solid var(--info); }
.signal-error   { border-left: 3px solid var(--danger); }

.signal-icon { font-weight: 700; font-size: 0.9rem; flex-shrink: 0; margin-top: 1px; }
.signal-ok .signal-icon    { color: var(--clean); }
.signal-warning .signal-icon { color: var(--warning); }
.signal-danger .signal-icon  { color: var(--danger); }
.signal-info .signal-icon    { color: var(--info); }
.signal-error .signal-icon   { color: var(--danger); }

/* Profile stats */
.profile-stats {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
  padding: 1rem;
  background: var(--surface);
  border-radius: 8px;
  border: 1px solid var(--border);
}
.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  gap: 0.2rem;
}
.stat strong { font-size: 1.05rem; }
.stat small { color: var(--muted); font-size: 0.72rem; }

/* Monitor section */
#monitor-section { margin: 1.5rem 0; }

.monitor-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.monitor-box .monitor-text h4 { font-size: 0.95rem; margin-bottom: 0.2rem; }
.monitor-box .monitor-text p { color: var(--muted); font-size: 0.83rem; }

.btn-monitor {
  background: rgba(124, 58, 237, 0.12);
  border: 1px solid var(--accent);
  color: var(--accent-light);
  padding: 0.5rem 1.25rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
  flex-shrink: 0;
}
.btn-monitor:hover { background: var(--accent); color: white; }
.btn-monitor.active {
  background: rgba(34, 197, 94, 0.12);
  border-color: var(--clean);
  color: var(--clean);
}
.btn-monitor.active:hover { background: rgba(34,197,94,0.25); }

/* CTA box */
.cta-box {
  background: linear-gradient(135deg, rgba(124,58,237,0.12), rgba(236,72,153,0.08));
  border: 1px solid rgba(124, 58, 237, 0.25);
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  margin: 1.5rem 0;
}
.cta-box h3 { margin-bottom: 0.5rem; }
.cta-box p { color: var(--muted); font-size: 0.9rem; margin-bottom: 1.25rem; }

.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: white;
  padding: 0.75rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s;
  font-size: 0.95rem;
}
.btn-primary:hover { background: var(--accent-light); }

/* How section */
.how-section {
  max-width: 680px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
  text-align: center;
  border-top: 1px solid var(--border);
}
.how-section h2 { font-size: 1.8rem; margin-bottom: 2rem; }

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem 1rem;
  font-size: 0.9rem;
  color: var(--muted);
}
.step-num {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent), #ec4899);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin: 0 auto 0.75rem;
  color: white;
  font-size: 1rem;
}

/* Install section */
#install {
  max-width: 680px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
  text-align: center;
  border-top: 1px solid var(--border);
}
#install h2 { font-size: 1.6rem; margin-bottom: 0.75rem; }
#install p { color: var(--muted); margin-bottom: 1.5rem; font-size: 0.95rem; }

.install-steps {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 420px;
  margin: 0 auto 2rem;
  text-align: left;
}
.install-step {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 0.88rem;
  color: var(--muted);
}
.install-step .step-num {
  width: 28px;
  height: 28px;
  font-size: 0.8rem;
  margin: 0;
  flex-shrink: 0;
}

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

/* needs_extension card */
.score-card.status-needs_extension { border-color: rgba(168, 85, 247, 0.4); }
.status-needs_extension .score-circle { border-color: var(--accent-light); }
.status-needs_extension #score-number { color: var(--accent-light); }

/* Posts grid */
.posts-section { margin-top: 1.5rem; }
.posts-section h3 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
}

.post-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem;
  font-size: 0.82rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.post-card.level-high   { border-left: 3px solid var(--clean); }
.post-card.level-normal { border-left: 3px solid var(--info); }
.post-card.level-low    { border-left: 3px solid var(--danger); }
.post-card.level-unknown { border-left: 3px solid var(--border); }

.post-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.post-num { color: var(--muted); font-size: 0.72rem; }

.eng-badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.eng-high    { background: rgba(34,197,94,0.15);  color: var(--clean); }
.eng-normal  { background: rgba(59,130,246,0.15);  color: var(--info); }
.eng-low     { background: rgba(239,68,68,0.15);   color: var(--danger); }
.eng-unknown { background: rgba(107,107,138,0.15); color: var(--muted); }

.post-stats-row {
  display: flex;
  gap: 0.75rem;
  color: var(--text);
  font-size: 0.8rem;
}

.post-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.post-date { color: var(--muted); font-size: 0.72rem; }
.post-link {
  font-size: 0.72rem;
  color: var(--accent-light);
  text-decoration: none;
}
.post-link:hover { text-decoration: underline; }

/* Responsive */
@media (max-width: 600px) {
  header { padding: 1rem; gap: 0.75rem; }
  nav a:not(.btn-outline) { display: none; }
  .score-card { flex-direction: column; text-align: center; }
  .steps { grid-template-columns: 1fr; }
  .monitor-box { flex-direction: column; text-align: center; }
  .hero { padding: 2.5rem 1rem 1.5rem; }
  .results { padding: 0 1rem 3rem; }
  .posts-grid { grid-template-columns: repeat(2, 1fr); }
}