:root {
  color-scheme: dark;
  --bg: #080b10;
  --card: #111722;
  --line: #253044;
  --text: #f3f7ff;
  --muted: #93a1b6;
  --accent: #65e3b4;
  --danger: #ff738a;
  --input: #0b1018;
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: radial-gradient(circle at 80% 0, #142439, transparent 32rem), var(--bg); color: var(--text); font-family: system-ui, -apple-system, "Segoe UI", sans-serif; }
.shell { width: min(980px, calc(100% - 32px)); margin: 0 auto; padding: 36px 0 80px; }
header, .card-heading, .form-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 0; font-size: clamp(2rem, 5vw, 3.4rem); letter-spacing: -.05em; }
h2 { margin-bottom: 18px; font-size: 1.25rem; }
.eyebrow { margin-bottom: 5px; color: var(--accent); font-size: .72rem; font-weight: 800; letter-spacing: .18em; }
.card { margin-top: 22px; padding: 24px; border: 1px solid var(--line); border-radius: 20px; background: color-mix(in srgb, var(--card) 92%, transparent); box-shadow: 0 20px 60px rgba(0,0,0,.22); }
.auth-card { max-width: 460px; }
.grid { display: grid; grid-template-columns: 1.35fr .85fr; gap: 22px; }
.grid .card { margin-top: 22px; }
form { display: grid; gap: 14px; }
label { display: grid; gap: 7px; color: var(--muted); font-size: .9rem; }
input, button { min-height: 44px; border-radius: 12px; font: inherit; }
input { width: 100%; padding: 10px 12px; border: 1px solid var(--line); background: var(--input); color: var(--text); outline: none; }
input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(101,227,180,.12); }
button { padding: 10px 16px; border: 0; background: var(--accent); color: #06120e; font-weight: 800; cursor: pointer; }
button:disabled { opacity: .45; cursor: wait; }
button.ghost { border: 1px solid var(--line); background: transparent; color: var(--text); }
button.danger { border: 1px solid rgba(255,115,138,.45); background: transparent; color: var(--danger); }
details { margin-top: 22px; border-top: 1px solid var(--line); padding-top: 18px; }
summary { cursor: pointer; color: var(--muted); margin-bottom: 16px; }
.notice { margin-top: 22px; padding: 13px 16px; border: 1px solid var(--line); border-radius: 12px; background: #121b29; }
.notice.error { border-color: rgba(255,115,138,.5); color: #ffb4c0; }
.muted, .meta { color: var(--muted); }
.inline-form { grid-template-columns: 1fr auto; }
.camera { display: grid; gap: 10px; margin: 16px 0; }
.camera video { width: 100%; max-height: 360px; border-radius: 16px; background: #000; object-fit: cover; }
.device-list, .release-list { display: grid; gap: 12px; }
.device-row, .release-row { display: grid; grid-template-columns: 1fr auto; gap: 16px; align-items: center; padding: 16px; border: 1px solid var(--line); border-radius: 14px; background: rgba(7,11,17,.45); }
.device-row h3, .release-row h3 { margin: 0 0 5px; font-size: 1rem; }
.row-actions { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; }
.empty { padding: 30px 10px; text-align: center; color: var(--muted); }
.hidden { display: none !important; }

@media (max-width: 720px) {
  .shell { width: min(100% - 20px, 980px); padding-top: 22px; }
  .grid { grid-template-columns: 1fr; gap: 0; }
  .card { padding: 19px; border-radius: 16px; }
  .form-row { align-items: stretch; flex-direction: column; }
  .device-row, .release-row { grid-template-columns: 1fr; }
  .row-actions { justify-content: flex-start; }
}