:root {
  --bg: #e8ecef;
  --bg-strong: #d7dde2;
  --surface: rgba(255, 255, 255, 0.84);
  --surface-strong: #0f2333;
  --text: #14202c;
  --muted: #5c6975;
  --line: rgba(20, 32, 44, 0.12);
  --accent: #1b6ca8;
  --accent-strong: #0b4f80;
  --ok: #12715f;
  --shadow: 0 24px 60px rgba(15, 35, 51, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Barlow", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(27, 108, 168, 0.2), transparent 28%),
    linear-gradient(180deg, #f4f7fa 0%, var(--bg) 52%, var(--bg-strong) 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.7), transparent 85%);
}

.page-shell {
  width: min(1380px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 40px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 24px;
  padding: 24px 28px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.brand {
  display: flex;
  align-items: center;
  gap: 18px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 92px;
  height: 92px;
  border-radius: 26px;
  background:
    linear-gradient(135deg, var(--accent) 0%, #79b9e2 100%);
  color: white;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.eyebrow {
  margin: 0 0 6px;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted);
}

h1,
h2,
p {
  margin: 0;
}

h1,
h2 {
  font-family: "Space Grotesk", sans-serif;
  letter-spacing: -0.03em;
}

h1 {
  font-size: clamp(2rem, 3vw, 3.35rem);
}

h2 {
  font-size: clamp(1.3rem, 2vw, 1.85rem);
}

.header-copy {
  max-width: 340px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.4;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  gap: 22px;
  margin-top: 22px;
  align-items: start;
}

.stack {
  display: grid;
  gap: 22px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  overflow: hidden;
}

.panel-video,
.panel-radar,
.panel-info {
  padding: 22px;
}

.panel-heading {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 16px;
  margin-bottom: 18px;
}

.video-spec {
  margin-top: 8px;
  max-width: 42ch;
  color: var(--muted);
  line-height: 1.4;
}

.status-pill {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(18, 113, 95, 0.12);
  color: var(--ok);
  font-size: 0.88rem;
  font-weight: 600;
}

.video-frame,
.iframe-wrap {
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: #09131b;
}

.video-frame {
  width: min(100%, 820px);
  margin: 0 auto;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.stream-player {
  display: block;
  width: 100%;
  aspect-ratio: 8 / 9;
  object-fit: contain;
  object-position: center top;
  background:
    linear-gradient(135deg, rgba(11, 79, 128, 0.8), rgba(5, 16, 25, 0.9)),
    #09131b;
}

.panel-footer {
  margin-top: 14px;
  color: var(--muted);
  line-height: 1.45;
}

.info-list {
  display: grid;
  gap: 16px;
  margin: 18px 0 0;
}

.info-list div {
  padding: 16px 18px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(20, 32, 44, 0.08);
}

dt {
  margin-bottom: 6px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
}

dd {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
}

code {
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.92rem;
  color: var(--accent-strong);
}

.iframe-wrap iframe {
  display: block;
  width: 100%;
  min-height: 920px;
  border: 0;
  background: #dce4ea;
}

@media (max-width: 1080px) {
  .topbar,
  .panel-heading {
    flex-direction: column;
    align-items: start;
  }

  .content-grid {
    grid-template-columns: 1fr;
  }

  .header-copy {
    max-width: none;
  }

  .video-frame {
    width: min(100%, 760px);
  }

  .iframe-wrap iframe {
    min-height: 760px;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 20px, 1380px);
    padding-top: 12px;
  }

  .topbar,
  .panel-video,
  .panel-radar,
  .panel-info {
    padding: 18px;
    border-radius: 22px;
  }

  .brand {
    align-items: start;
  }

  .brand-mark {
    width: 76px;
    height: 76px;
    border-radius: 22px;
    font-size: 1.3rem;
  }

  .iframe-wrap iframe {
    min-height: 520px;
  }
}