/* ─── Reset & Base ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --midnight: #0B0F19;
  --deep: #111827;
  --surface: #1A2235;
  --surface2: #22304a;
  --amber: #F5A623;
  --amber-dim: rgba(245,166,35,0.12);
  --amber-glow: rgba(245,166,35,0.25);
  --cyan: #00D4FF;
  --cyan-dim: rgba(0,212,255,0.1);
  --white: #F8F9FB;
  --muted: #8B9DC3;
  --muted2: #5A6F8A;
  --border: rgba(255,255,255,0.06);
  --success: #22c55e;
  --error: #ef4444;
}

html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: 'DM Sans', system-ui, sans-serif;
  background: var(--midnight);
  color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ─── Nav ─────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(11,15,25,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
}
.nav-inner {
  max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  height: 60px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.nav-logo-text {
  font-family: 'Syne', sans-serif; font-weight: 700; font-size: 1.1rem;
  color: var(--white); letter-spacing: -0.02em;
}
.nav-status { display: flex; align-items: center; gap: 8px; font-size: 0.8rem; color: var(--muted); }
.nav-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--success); box-shadow: 0 0 6px var(--success);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

/* ─── Hero ─────────────────────────────────────────────────── */
.hero { padding: 5rem 2rem 4rem; }
.hero-inner {
  max-width: 1280px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 4rem; align-items: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--amber-dim); border: 1px solid var(--amber-glow);
  color: var(--amber); font-size: 0.75rem; font-weight: 600;
  padding: 4px 12px; border-radius: 100px;
  letter-spacing: 0.05em; text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.hero h1 {
  font-family: 'Syne', sans-serif; font-size: 3.5rem; font-weight: 800;
  line-height: 1.1; letter-spacing: -0.03em; margin-bottom: 1.5rem;
}
.hero h1 span { color: var(--amber); }
.hero p {
  font-size: 1.125rem; color: var(--muted); max-width: 480px;
  margin-bottom: 2.5rem; line-height: 1.7;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--amber); color: var(--midnight);
  font-weight: 600; font-size: 0.95rem;
  padding: 12px 24px; border-radius: 8px; border: none; cursor: pointer;
  transition: all 0.15s;
}
.btn-primary:hover { background: #e8961a; text-decoration: none; }
.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; color: var(--white); font-weight: 600;
  font-size: 0.95rem; padding: 12px 24px;
  border-radius: 8px; border: 1px solid var(--border); cursor: pointer;
  transition: all 0.15s;
}
.btn-secondary:hover { border-color: rgba(255,255,255,0.2); text-decoration: none; }

.hero-visual {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; padding: 2rem; position: relative;
  overflow: hidden;
}
.hero-visual::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--amber-glow), transparent);
}

/* ─── Features ─────────────────────────────────────────────── */
.features { padding: 4rem 2rem; border-top: 1px solid var(--border); }
.features-inner { max-width: 1280px; margin: 0 auto; }
.section-label {
  font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--amber); font-weight: 600; margin-bottom: 1rem;
}
.features h2 {
  font-family: 'Syne', sans-serif; font-size: 2.25rem; font-weight: 700;
  letter-spacing: -0.02em; margin-bottom: 3rem;
}
.features-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}
.feature-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 1.75rem;
  transition: border-color 0.15s;
}
.feature-card:hover { border-color: rgba(255,255,255,0.1); }
.feature-icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--amber-dim); display: flex; align-items: center; justify-content: center;
  margin-bottom: 1rem; font-size: 1.25rem;
}
.feature-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 0.5rem; }
.feature-card p { font-size: 0.875rem; color: var(--muted); line-height: 1.6; }

/* ─── Metrics ─────────────────────────────────────────────── */
.metrics { padding: 4rem 2rem; background: var(--deep); }
.metrics-inner { max-width: 1280px; margin: 0 auto; }
.metrics-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; margin-top: 2rem;
}
.metric-card {
  border-left: 2px solid var(--amber); padding-left: 1.25rem;
}
.metric-value {
  font-family: 'Syne', sans-serif; font-size: 2.5rem; font-weight: 700;
  color: var(--white); line-height: 1;
}
.metric-label { font-size: 0.875rem; color: var(--muted); margin-top: 0.5rem; }

/* ─── CTA ──────────────────────────────────────────────────── */
.cta { padding: 5rem 2rem; }
.cta-inner {
  max-width: 700px; margin: 0 auto; text-align: center;
}
.cta h2 {
  font-family: 'Syne', sans-serif; font-size: 2.5rem; font-weight: 700;
  letter-spacing: -0.02em; margin-bottom: 1rem;
}
.cta p { color: var(--muted); font-size: 1.1rem; margin-bottom: 2rem; }

/* ─── Footer ───────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border); padding: 2rem;
  text-align: center; color: var(--muted2); font-size: 0.8rem;
}

/* ─── App Layout ───────────────────────────────────────────── */
.app-nav {
  background: var(--surface); border-bottom: 1px solid var(--border);
  padding: 0 2rem; height: 56px;
}
.app-nav-inner {
  max-width: 1280px; margin: 0 auto; height: 100%;
  display: flex; align-items: center; justify-content: space-between;
}
.app-nav a { color: var(--muted); font-size: 0.875rem; font-weight: 500; }
.app-nav a:hover { color: var(--white); text-decoration: none; }
.app-nav .logo { font-family: 'Syne', sans-serif; font-weight: 700; color: var(--white); }

.app-container { max-width: 1280px; margin: 0 auto; padding: 2rem; }

.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 2rem; }
.page-header h1 { font-family: 'Syne', sans-serif; font-size: 1.75rem; font-weight: 700; }
.page-header p { color: var(--muted); font-size: 0.875rem; margin-top: 0.25rem; }

/* ─── Campaign Cards ────────────────────────────────────────── */
.campaigns-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 1.25rem; }
.campaign-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 1.5rem; cursor: pointer;
  transition: border-color 0.15s;
}
.campaign-card:hover { border-color: rgba(255,255,255,0.12); }
.campaign-card-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 1rem; }
.campaign-name { font-weight: 600; font-size: 1rem; }
.campaign-status {
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em;
  padding: 3px 8px; border-radius: 100px; font-weight: 600;
}
.status-draft { background: rgba(139,157,195,0.15); color: var(--muted); }
.status-running { background: var(--amber-dim); color: var(--amber); }
.status-completed { background: rgba(34,197,94,0.15); color: var(--success); }
.status-failed { background: rgba(239,68,68,0.15); color: var(--error); }

.campaign-metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.5rem; margin-top: 1rem; }
.metric { text-align: center; padding: 0.75rem 0.5rem; background: var(--surface2); border-radius: 8px; }
.metric .val { font-size: 1.25rem; font-weight: 700; font-family: 'Syne', sans-serif; }
.metric .lbl { font-size: 0.65rem; color: var(--muted2); text-transform: uppercase; letter-spacing: 0.05em; margin-top: 2px; }

/* ─── Forms ─────────────────────────────────────────────────── */
.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; font-size: 0.8rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.5rem; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; background: var(--surface); border: 1px solid var(--border);
  color: var(--white); border-radius: 8px; padding: 10px 14px;
  font-size: 0.9rem; font-family: inherit;
  transition: border-color 0.15s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--amber);
}
.form-group textarea { resize: vertical; min-height: 80px; }
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--muted2); }
.form-hint { font-size: 0.75rem; color: var(--muted2); margin-top: 0.35rem; }

/* ─── Prospect Table ────────────────────────────────────────── */
.prospects-table { width: 100%; border-collapse: collapse; }
.prospects-table th {
  text-align: left; font-size: 0.7rem; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--muted2); padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--border);
}
.prospects-table td {
  padding: 1rem; border-bottom: 1px solid var(--border);
  font-size: 0.875rem; vertical-align: middle;
}
.prospects-table tr:last-child td { border-bottom: none; }
.prospects-table tr:hover td { background: rgba(255,255,255,0.02); }
.prospect-name { font-weight: 600; }
.prospect-company { color: var(--muted); font-size: 0.8rem; }
.msg-badge {
  display: inline-block; font-size: 0.65rem; text-transform: uppercase;
  letter-spacing: 0.05em; padding: 2px 6px; border-radius: 4px;
  margin-right: 4px;
}
.msg-email { background: var(--cyan-dim); color: var(--cyan); }
.msg-linkedin { background: rgba(0,115,230,0.15); color: #0073e6; }
.msg-pending { background: rgba(139,157,195,0.12); color: var(--muted); }
.msg-sent { background: rgba(34,197,94,0.12); color: var(--success); }
.msg-error { background: rgba(239,68,68,0.12); color: var(--error); }

.empty-state {
  text-align: center; padding: 4rem 2rem;
  color: var(--muted);
}
.empty-state h3 { font-size: 1.1rem; font-weight: 600; color: var(--white); margin-bottom: 0.5rem; }
.empty-state p { font-size: 0.875rem; }

/* ─── Buttons ─────────────────────────────────────────────────── */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border-radius: 8px; font-size: 0.85rem; font-weight: 600; cursor: pointer; border: none; font-family: inherit; transition: all 0.15s; }
.btn-amber { background: var(--amber); color: var(--midnight); }
.btn-amber:hover { background: #e8961a; }
.btn-outline { background: transparent; color: var(--white); border: 1px solid var(--border); }
.btn-outline:hover { border-color: rgba(255,255,255,0.2); }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.spinner { display: inline-block; width: 14px; height: 14px; border: 2px solid rgba(0,0,0,0.3); border-top-color: transparent; border-radius: 50%; animation: spin 0.6s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Alert ─────────────────────────────────────────────────── */
.alert { padding: 0.875rem 1rem; border-radius: 8px; font-size: 0.875rem; margin-bottom: 1rem; }
.alert-success { background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.3); color: var(--success); }
.alert-error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: var(--error); }

/* ─── Responsive ─────────────────────────────────────────────── */
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .campaigns-grid { grid-template-columns: 1fr; }
}