:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --primary: #2563eb;
  --primary-strong: #1d4ed8;
  --border: #e2e8f0;
  --shadow: 0 12px 40px rgba(15, 23, 42, 0.12);
  --radius: 14px;
  --radius-sm: 10px;
  --fw-semibold: 600;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", "Helvetica Neue", Arial, sans-serif;
  background: radial-gradient(circle at 20% 20%, rgba(37, 99, 235, 0.05), transparent 30%),
    radial-gradient(circle at 80% 0%, rgba(16, 185, 129, 0.05), transparent 30%),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
  padding: 24px clamp(16px, 3vw, 40px) 48px;
}

.hero {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: center;
  padding: 18px 22px;
  background: linear-gradient(120deg, rgba(37, 99, 235, 0.08), rgba(16, 185, 129, 0.08));
  border: 1px solid rgba(37, 99, 235, 0.15);
  border-radius: var(--radius);
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

.hero__badge {
  background: var(--card);
  color: var(--primary);
  padding: 10px 14px;
  border-radius: 12px;
  font-weight: var(--fw-semibold);
  border: 1px solid rgba(37, 99, 235, 0.2);
}

.hero__actions {
  margin-top: 10px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.muted {
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 16px 16px 14px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
  color: var(--muted);
}

h1,
h2 {
  margin: 4px 0;
  font-weight: 700;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 14px;
  color: var(--text);
}

input {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: #f8fafc;
  font-size: 14px;
}

input:focus {
  outline: 2px solid rgba(37, 99, 235, 0.3);
  border-color: rgba(37, 99, 235, 0.5);
}

.btn {
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-weight: var(--fw-semibold);
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease;
}

.btn.primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 10px 20px rgba(37, 99, 235, 0.25);
}

.btn.primary:hover {
  background: var(--primary-strong);
}

.btn.ghost {
  background: #eef2ff;
  color: #312e81;
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.btn.sm {
  padding: 8px 10px;
  font-size: 13px;
}

.btn.full {
  width: 100%;
}

.btn:active {
  transform: translateY(1px);
}

.output {
  background: #0f172a;
  color: #e2e8f0;
  padding: 10px;
  border-radius: var(--radius-sm);
  min-height: 60px;
  overflow: auto;
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
}

.list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.device {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.device__name {
  font-weight: var(--fw-semibold);
}

.device__meta {
  color: var(--muted);
  font-size: 13px;
}

.device__actions {
  display: flex;
  gap: 6px;
}

.video-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

video {
  width: 100%;
  border-radius: var(--radius-sm);
  background: #000;
  min-height: 120px;
}

textarea {
  width: 100%;
  min-height: 42px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  padding: 10px 12px;
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  background: #f8fafc;
}

@media (max-width: 640px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: left;
  }
  body {
    padding: 16px;
  }
}