:root {
  --ac-bg: #06080f;
  --ac-surface: rgba(18, 22, 34, 0.72);
  --ac-line: rgba(120, 170, 255, 0.14);
  --ac-text: #f0f3fa;
  --ac-muted: #8f9bb8;
  --ac-a1: #ff4d2e;
  --ac-a2: #a855f7;
  --ac-a3: #22d3ee;
  --ac-a4: #3b82f6;
  --ac-radius: 16px;
  --ac-font: "Outfit", system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

body.ac-page {
  margin: 0;
  font-family: var(--ac-font);
  background: var(--ac-bg);
  color: var(--ac-text);
  min-height: 100vh;
}

.ac-mesh {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 100% 80% at 10% -10%, rgba(255, 77, 46, 0.18), transparent 50%),
    radial-gradient(ellipse 80% 60% at 90% 10%, rgba(34, 211, 238, 0.12), transparent 45%),
    radial-gradient(ellipse 60% 50% at 50% 100%, rgba(168, 85, 247, 0.1), transparent 40%),
    var(--ac-bg);
  z-index: -2;
}

.ac-grid-noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
  z-index: -1;
}

.ac-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  border-bottom: 1px solid var(--ac-line);
  background: rgba(6, 8, 15, 0.75);
  backdrop-filter: blur(14px);
}

.ac-nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}

.ac-nav-brand img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  filter: drop-shadow(0 0 14px rgba(34, 211, 238, 0.35));
}

.ac-nav-brand span {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  background: linear-gradient(105deg, var(--ac-a1), var(--ac-a2), var(--ac-a3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.ac-nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ac-nav-links a {
  color: var(--ac-muted);
  text-decoration: none;
  font-size: 0.92rem;
  padding: 8px 14px;
  border-radius: 999px;
  transition: color 0.15s, background 0.15s;
}

.ac-nav-links a:hover {
  color: var(--ac-text);
  background: rgba(59, 130, 246, 0.1);
}

.ac-hero {
  max-width: 1120px;
  margin: 0 auto;
  padding: 72px 28px 56px;
  text-align: center;
}

.ac-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ac-a3);
  border: 1px solid rgba(34, 211, 238, 0.35);
  background: rgba(34, 211, 238, 0.06);
  margin-bottom: 22px;
}

.ac-hero h1 {
  margin: 0 0 20px;
  font-size: clamp(2.1rem, 5vw, 3.35rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.ac-hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--ac-a1), var(--ac-a2) 45%, var(--ac-a3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.ac-hero-lead {
  margin: 0 auto 32px;
  max-width: 560px;
  font-size: 1.08rem;
  line-height: 1.65;
  color: var(--ac-muted);
}

.ac-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.ac-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 12px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--ac-line);
  background: var(--ac-surface);
  color: var(--ac-text);
  text-decoration: none;
  transition: transform 0.12s, box-shadow 0.12s, border-color 0.12s;
}

.ac-btn:hover {
  transform: translateY(-1px);
  border-color: rgba(34, 211, 238, 0.35);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.ac-btn-primary {
  border: none;
  background: linear-gradient(135deg, rgba(255, 77, 46, 0.95), rgba(168, 85, 247, 0.85), rgba(34, 211, 238, 0.75));
  background-size: 160% 160%;
  box-shadow: 0 8px 32px rgba(168, 85, 247, 0.25);
}

.ac-btn-primary:hover {
  box-shadow: 0 14px 48px rgba(34, 211, 238, 0.2);
}

.ac-section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 56px 28px;
}

.ac-section h2 {
  margin: 0 0 10px;
  font-size: 1.65rem;
  letter-spacing: -0.02em;
}

.ac-section-desc {
  margin: 0 0 36px;
  color: var(--ac-muted);
  max-width: 560px;
  line-height: 1.6;
}

.ac-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.ac-card {
  padding: 24px;
  border-radius: var(--ac-radius);
  border: 1px solid var(--ac-line);
  background: var(--ac-surface);
  backdrop-filter: blur(10px);
  transition: border-color 0.15s;
}

.ac-card:hover {
  border-color: rgba(168, 85, 247, 0.35);
}

.ac-card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 14px;
  background: linear-gradient(145deg, rgba(255, 77, 46, 0.2), rgba(34, 211, 238, 0.15));
}

.ac-card h3 {
  margin: 0 0 8px;
  font-size: 1.08rem;
}

.ac-card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--ac-muted);
}

.ac-stats-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  margin-top: 48px;
  padding: 28px;
  border-radius: var(--ac-radius);
  border: 1px solid var(--ac-line);
  background: rgba(12, 16, 28, 0.6);
}

.ac-stats-strip div {
  text-align: center;
}

.ac-stats-strip strong {
  display: block;
  font-size: 1.5rem;
  background: linear-gradient(90deg, var(--ac-a3), var(--ac-a4));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.ac-stats-strip span {
  font-size: 0.8rem;
  color: var(--ac-muted);
}

.ac-footer {
  margin-top: 40px;
  padding: 28px;
  border-top: 1px solid var(--ac-line);
  text-align: center;
  color: var(--ac-muted);
  font-size: 0.85rem;
}

.ac-login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

.ac-login-wrap {
  width: 100%;
  max-width: 380px;
  padding: 40px 32px;
  border-radius: var(--ac-radius);
  border: 1px solid var(--ac-line);
  background: var(--ac-surface);
  backdrop-filter: blur(12px);
  text-align: center;
}

.ac-login-logo {
  width: 64px;
  height: 64px;
  object-fit: contain;
  margin-bottom: 16px;
}

.ac-login-title {
  margin: 0 0 6px;
  font-size: 1.5rem;
}

.ac-login-sub {
  margin: 0 0 24px;
  color: var(--ac-muted);
  font-size: 0.92rem;
}

.ac-login-err {
  color: #f87171;
  font-size: 0.88rem;
  margin: 0 0 16px;
}

.ac-input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 10px;
  border: 1px solid var(--ac-line);
  background: rgba(6, 8, 15, 0.6);
  color: var(--ac-text);
  font-family: inherit;
  font-size: 1rem;
  margin-bottom: 14px;
}

.ac-input:focus {
  outline: none;
  border-color: rgba(34, 211, 238, 0.5);
}

.ac-btn-block { width: 100%; }

.ac-login-form { text-align: left; }

.ac-link-back {
  display: inline-block;
  margin-top: 20px;
  color: var(--ac-muted);
  font-size: 0.88rem;
}

.ac-link-back:hover { color: var(--ac-a3); }

@media (max-width: 640px) {
  .ac-nav { flex-wrap: wrap; gap: 12px; }
  .ac-nav-links { width: 100%; justify-content: center; flex-wrap: wrap; }
}