/* SafeGrid: shared scanning hero (index, zero, contact) */

.sg-scan-banner {
  --sg-cold: #78aaff;
  --sg-danger: #ff2d2d;
  width: 100%;
  min-height: 280px;
  height: clamp(220px, 36vw, 360px);
  border-radius: 18px;
  margin: 32px 0 28px;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow:
    0 30px 90px rgba(0, 0, 0, 0.65),
    0 0 40px rgba(120, 170, 255, 0.08) inset;
  background:
    radial-gradient(ellipse 90% 100% at 50% 110%, rgba(6, 10, 18, 0.98), transparent),
    radial-gradient(circle at 45% 45%, #0c1424 0%, #020306 72%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.sg-scan-banner__grid {
  position: absolute;
  inset: -55% -25% -35%;
  background-size: 48px 48px;
  background-image:
    linear-gradient(to right, rgba(120, 170, 255, 0.075) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(120, 170, 255, 0.075) 1px, transparent 1px);
  transform: perspective(520px) rotateX(62deg) translateY(-10%);
  animation: sg-grid-move 18s linear infinite;
  pointer-events: none;
}

@keyframes sg-grid-move {
  from {
    background-position: 0 0;
  }
  to {
    background-position: 0 48px;
  }
}

.sg-scan-banner__radar {
  position: absolute;
  left: 8%;
  top: 50%;
  width: min(240px, 38vw);
  height: min(240px, 38vw);
  transform: translateY(-50%);
  border-radius: 50%;
  border: 1px solid rgba(120, 170, 255, 0.24);
  box-shadow: inset 0 0 42px rgba(120, 170, 255, 0.07);
  pointer-events: none;
}

.sg-scan-banner__radar::before {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: 50%;
  border: 1px dashed rgba(120, 170, 255, 0.3);
}

.sg-scan-banner__sweep {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(
    from 0deg at 50% 50%,
    transparent 0deg,
    transparent 252deg,
    rgba(120, 170, 255, 0.62) 300deg,
    rgba(120, 170, 255, 0.12) 360deg
  );
  animation: sg-radar-spin 4.8s linear infinite;
}

@keyframes sg-radar-spin {
  to {
    transform: rotate(360deg);
  }
}

.sg-scan-banner__stream {
  position: absolute;
  height: 2px;
  width: min(240px, 45vw);
  top: 36%;
  left: -35%;
  background: linear-gradient(
    90deg,
    transparent,
    var(--sg-cold),
    transparent
  );
  filter: drop-shadow(0 0 8px var(--sg-cold));
  animation: sg-stream-move 3.7s linear infinite;
  pointer-events: none;
}

.sg-scan-banner__stream--red {
  top: 64%;
  background: linear-gradient(
    90deg,
    transparent,
    var(--sg-danger),
    transparent
  );
  filter: drop-shadow(0 0 8px var(--sg-danger));
  animation-duration: 4.5s;
  animation-delay: 1.15s;
}

@keyframes sg-stream-move {
  from {
    left: -35%;
  }
  to {
    left: 110%;
  }
}

.sg-scan-banner__accent-red {
  position: absolute;
  right: 0;
  top: 50%;
  width: min(160px, 30vw);
  height: 2px;
  transform: translateY(-50%);
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 45, 45, 0.92)
  );
  box-shadow: 0 0 12px rgba(255, 45, 45, 0.35);
  pointer-events: none;
}

.sg-scan-banner__center {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 20px;
  max-width: 960px;
}

.sg-scan-banner__rule-blue {
  width: min(80%, 580px);
  height: 2px;
  margin: 0 auto 16px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(120, 170, 255, 0.95),
    transparent
  );
  box-shadow: 0 0 14px rgba(120, 170, 255, 0.45);
  animation: sg-line-glow 3.8s ease-in-out infinite;
}

@keyframes sg-line-glow {
  0%,
  100% {
    opacity: 0.78;
  }
  50% {
    opacity: 1;
  }
}

.sg-scan-banner__title {
  margin: 0;
  font-size: clamp(15px, 3.1vw, 28px);
  font-weight: 900;
  letter-spacing: 0.26em;
  line-height: 1.25;
  color: rgba(255, 255, 255, 0.97);
  text-transform: uppercase;
  text-shadow:
    0 0 22px rgba(120, 170, 255, 0.42),
    0 0 48px rgba(255, 255, 255, 0.1);
}

.sg-scan-banner__sub {
  margin: 14px 0 0;
  font-size: clamp(10px, 1.85vw, 12px);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(169, 179, 204, 0.92);
  max-width: 52ch;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.5;
}

@media (max-width: 720px) {
  .sg-scan-banner {
    margin-top: 24px;
    min-height: 200px;
    height: auto;
    padding: 48px 0 40px;
  }

  .sg-scan-banner__radar {
    left: -12%;
    opacity: 0.32;
    width: 150px;
    height: 150px;
  }

  .sg-scan-banner__title {
    letter-spacing: 0.12em;
  }

  .sg-scan-banner__accent-red {
    opacity: 0.85;
  }
}

@media (max-width: 380px) {
  .sg-scan-banner {
    min-height: 168px;
    padding: 36px 0 28px;
    margin: 18px 0 18px;
  }

  .sg-scan-banner__radar {
    width: 118px;
    height: 118px;
    left: -18%;
    opacity: 0.24;
  }

  .sg-scan-banner__stream,
  .sg-scan-banner__stream--red,
  .sg-scan-banner__accent-red {
    opacity: 0.7;
  }

  .sg-scan-banner__center {
    padding: 0 12px;
  }

  .sg-scan-banner__rule-blue {
    margin-bottom: 10px;
  }

  .sg-scan-banner__title {
    font-size: clamp(13px, 5vw, 18px);
    letter-spacing: 0.08em;
    line-height: 1.3;
  }

  .sg-scan-banner__sub {
    margin-top: 10px;
    font-size: 10px;
    letter-spacing: 0.08em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sg-scan-banner__grid,
  .sg-scan-banner__sweep,
  .sg-scan-banner__stream,
  .sg-scan-banner__stream--red,
  .sg-scan-banner__rule-blue {
    animation: none;
  }

  .sg-scan-banner__sweep {
    transform: rotate(45deg);
  }
}