:root {
  --bg: #0a0c10;
  --bg-elevated: #12151c;
  --border: #252a36;
  --text: #e8ecf4;
  --muted: #8b95a8;
  --accent: #4f8cff;
  --accent-dim: #2a4570;
  --glow: rgba(79, 140, 255, 0.15);
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 12, 16, 0.92);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(8px);
}

.logo {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.logo span { color: var(--accent); }

nav { display: flex; gap: 1.25rem; align-items: center; }
nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
}
nav a:hover { color: var(--text); }

.btn-primary, .btn-ghost {
  display: inline-block;
  padding: 0.65rem 1.2rem;
  border-radius: 6px;
  font-size: 0.9rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #3a6fd8);
  color: #fff;
  box-shadow: 0 4px 24px var(--glow);
}
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-primary.full { width: 100%; margin-top: 0.5rem; }

.hero {
  max-width: 920px;
  margin: 0 auto;
  padding: 5rem 2rem 4rem;
  text-align: center;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  color: var(--accent);
  margin-bottom: 1rem;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}
.lead {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 640px;
  margin: 0 auto 2rem;
}
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

.grid-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem;
}
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.75rem;
}
.card h2 { font-size: 1.1rem; margin-bottom: 0.75rem; color: var(--text); }
.card p { color: var(--muted); font-size: 0.95rem; }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  max-width: 1100px;
  margin: 3rem auto;
  padding: 0 2rem;
  align-items: center;
}
.split.reverse { direction: rtl; }
.split.reverse > * { direction: ltr; }
.split h2 { margin-bottom: 1rem; font-size: 1.5rem; }
.split p, .split li { color: var(--muted); }
.split ul { margin-top: 1rem; padding-left: 1.25rem; }
.split li { margin-bottom: 0.5rem; }

.panel {
  background: linear-gradient(145deg, var(--bg-elevated), #0d1018);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2.5rem;
  text-align: center;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
}
.stat { font-size: 2.5rem; font-weight: 700; color: var(--accent); }
.stat-label { color: var(--muted); font-size: 0.9rem; margin-top: 0.5rem; }

.login-section {
  max-width: 1100px;
  margin: 4rem auto;
  padding: 0 2rem 4rem;
}
.login-card {
  max-width: 400px;
  margin: 0 auto;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}
.login-card h2 { margin-bottom: 0.5rem; }
.muted { color: var(--muted); font-size: 0.9rem; }
.login-card label {
  display: block;
  margin-top: 1.25rem;
  margin-bottom: 0.35rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.login-card input {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font-size: 1rem;
}
.login-card input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--glow);
}
.login-msg {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: #e8a87c;
}

footer {
  border-top: 1px solid var(--border);
  padding: 2rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}
footer p + p { margin-top: 0.35rem; }

@media (max-width: 768px) {
  .split { grid-template-columns: 1fr; }
  .split.reverse { direction: ltr; }
  nav a:not(.btn-ghost) { display: none; }
}