/* ═══════════════════════════════════════════════════════════════════════════
   SENTINEL v3 — Design System
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
  /* ── Core ── */
  --bg:           #050d14;
  --panel:        rgba(8, 17, 28, .58);
  --panel-heavy:  rgba(5, 11, 19, .92);
  --text:         #e8f4fb;
  --muted:        #6e93a6;

  /* ── 9-camera neon accent system ── */
  --cam-1: hsl(190 88% 62%);
  --cam-2: hsl(272 74% 67%);
  --cam-3: hsl(310 68% 64%);
  --cam-4: hsl(38  90% 62%);
  --cam-5: hsl(142 68% 55%);
  --cam-6: hsl(224 78% 65%);
  --cam-7: hsl(0   72% 62%);
  --cam-8: hsl(168 72% 58%);
  --cam-9: hsl(55  85% 60%);

  /* ── Legacy aliases ── */
  --cyan:        hsl(190 88% 62%);
  --green:       #45d69c;
  --red:         #ff5571;
  --border:      rgba(130, 190, 210, .14);
  --neon-border: rgba(66, 215, 210, .26);
  --glow-cyan:   0 0 0 1px rgba(66,215,210,.24), 0 0 22px rgba(66,215,210,.14);
  --deep-shadow: 0 20px 48px rgba(0,0,0,.38), 0 2px 10px rgba(0,0,0,.26);
  --glass-shine: linear-gradient(165deg, rgba(255,255,255,.08) 0%, transparent 44%);

  /* ── Typography ── */
  --font-ui:      "Inter",    "Segoe UI", sans-serif;
  --font-mono:    "DM Mono",  "JetBrains Mono", monospace;
  --font-display: "Orbitron", sans-serif;

  /* ── Layout ── */
  --topbar-h:  64px;
  --subnav-h:  42px;
  --max-w:     1480px;
  --page-pad:  18px;
}

/* ── Reset ───────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; letter-spacing: 0; }
html, body { min-height: 100%; font-family: var(--font-ui); color: var(--text); background: var(--bg); }
body { overflow-x: hidden; }
button { font-family: var(--font-ui); }
h1, h2, h3 { font-weight: 600; }
#bg-canvas { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }

/* ── Glass surface ───────────────────────────────────────────────────────── */
.glass {
  position: relative;
  background: var(--panel);
  backdrop-filter: blur(28px) saturate(170%);
  -webkit-backdrop-filter: blur(28px) saturate(170%);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--deep-shadow), inset 0 1px 0 rgba(255,255,255,.08);
  overflow: hidden;
}
.glass::before { content: ""; position: absolute; inset: 0; background: var(--glass-shine); pointer-events: none; z-index: 0; }
.glass > * { position: relative; z-index: 1; }

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.icon-btn {
  width: 36px; height: 36px; border-radius: 7px;
  border: 1px solid var(--border);
  background: rgba(12, 22, 34, .45);
  color: var(--text); font-size: 15px; cursor: pointer;
  display: grid; place-items: center; flex-shrink: 0;
}
.primary, .pill {
  background: rgba(18, 108, 118, .60);
  border: 1px solid rgba(66,215,210,.42);
  border-radius: 7px; color: #fff;
  padding: 9px 16px; cursor: pointer;
  font-size: 13px; font-weight: 500; white-space: nowrap;
}
button:hover  { box-shadow: var(--glow-cyan); border-color: rgba(66,215,210,.42); }
button:active { transform: scale(.97); }
kbd {
  display: inline-block; padding: 2px 6px;
  background: rgba(255,255,255,.07); border: 1px solid var(--border);
  border-radius: 4px; font-family: var(--font-mono);
  font-size: 10px; color: var(--muted);
}

/* ═══════════════════════════════════════════════════════════════════════════
   SPLASH SCREEN
   ═══════════════════════════════════════════════════════════════════════════ */
.splash {
  position: fixed; inset: 0; z-index: 200;
  background: var(--bg);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 18px;
  transition: opacity .5s ease;
}
.splash.fade-out { opacity: 0; pointer-events: none; }
.splash-icon {
  width: 96px; height: 96px; border-radius: 22px;
  box-shadow: 0 0 40px rgba(66,215,210,.28);
  object-fit: cover;
}
.splash-wordmark {
  font-family: var(--font-display);
  font-size: 28px; font-weight: 700; letter-spacing: -.02em;
}
.splash-wordmark span { color: var(--cyan); }
.splash-ring {
  width: 48px; height: 48px; border-radius: 50%;
  border: 3px solid var(--border); border-top-color: var(--cyan);
  animation: spin 1s linear infinite;
}
.splash-status {
  font-family: var(--font-mono); font-size: 12px; color: var(--muted);
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ═══════════════════════════════════════════════════════════════════════════
   TOPBAR
   ═══════════════════════════════════════════════════════════════════════════ */
.topbar {
  position: sticky; top: 0; z-index: 40;
  height: var(--topbar-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 22px;
  max-width: var(--max-w); margin: 0 auto;
  border-radius: 0 0 10px 10px; border-top: none;
}
.topbar::after {
  content: ""; position: absolute; bottom: 0; left: -10%; width: 30%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  animation: shimmer 7s linear infinite;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-icon {
  width: 36px; height: 36px; border-radius: 8px;
  box-shadow: 0 0 16px rgba(66,215,210,.22);
  flex-shrink: 0; object-fit: cover;
}
.brand-text strong {
  display: block; font-family: var(--font-display);
  font-size: 15px; font-weight: 700; letter-spacing: .04em;
}
.brand-text span {
  display: block; font-size: 10px;
  text-transform: uppercase; letter-spacing: .09em; color: var(--muted);
}
.topbar-right { display: flex; align-items: center; gap: 8px; }
.topbar-clock {
  font-family: var(--font-display);
  font-size: 13px; letter-spacing: .08em;
  color: var(--muted); white-space: nowrap; user-select: none;
}
.chip {
  height: 30px; display: flex; gap: 6px; align-items: center;
  padding: 0 11px; border: 1px solid var(--border);
  border-radius: 15px; color: var(--muted); font-size: 12px;
}
.chip i { display: block; width: 7px; height: 7px; background: #445566; border-radius: 50%; }
.chip.live i { background: var(--green); box-shadow: 0 0 9px var(--green); animation: neon-pulse 2s infinite; }
#btn-firestorm[aria-pressed="true"] {
  border-color: rgba(255,140,20,.70);
  box-shadow: 0 0 0 1px rgba(255,140,20,.34), 0 0 18px rgba(255,100,10,.26);
  color: #ffaa44;
}

/* ═══════════════════════════════════════════════════════════════════════════
   SECTION NAV
   ═══════════════════════════════════════════════════════════════════════════ */
.section-nav {
  position: sticky; top: var(--topbar-h); z-index: 39;
  height: var(--subnav-h);
  display: flex; align-items: center; gap: 2px;
  padding: 0 22px;
  max-width: var(--max-w); margin: 0 auto;
  border-radius: 0; border-top: none;
  overflow-x: auto; scrollbar-width: none;
}
.section-nav::-webkit-scrollbar { display: none; }
.nav-btn {
  position: relative;
  padding: 5px 14px; border-radius: 6px;
  border: 1px solid transparent; background: none;
  color: var(--muted); font-size: 13px; font-weight: 500;
  cursor: pointer; white-space: nowrap;
  transition: color .15s, border-color .15s, background .15s;
}
.nav-badge {
  position: absolute; top: 0; right: 0;
  transform: translate(40%, -40%);
  min-width: 16px; height: 16px; padding: 0 4px;
  border-radius: 8px; background: var(--red);
  font-size: 9px; font-weight: 700; color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  line-height: 1; pointer-events: none;
}
.nav-btn:hover  { color: var(--text); border-color: var(--border); box-shadow: none; }
.nav-btn.active { color: var(--text); border-color: var(--neon-border); background: rgba(66,215,210,.07); box-shadow: none; }

/* ═══════════════════════════════════════════════════════════════════════════
   PAGE & SECTIONS
   ═══════════════════════════════════════════════════════════════════════════ */
.page-wrap { position: relative; z-index: 1; max-width: var(--max-w); margin: 0 auto; padding: 0 var(--page-pad) 32px; }
.section { padding-top: 22px; animation: fade-up .3s ease both; }
.section-hdr { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 16px; gap: 12px; }
.section-hdr h2 { font-size: 17px; }
.section-hdr-meta { color: var(--muted); font-size: 12px; }

/* ═══════════════════════════════════════════════════════════════════════════
   COMPACT STAT BAR
   ═══════════════════════════════════════════════════════════════════════════ */
.stat-bar {
  display: flex; align-items: center; gap: 0;
  padding: 11px 20px; margin-bottom: 14px;
  border-radius: 8px; overflow-x: auto; scrollbar-width: none;
}
.stat-bar::-webkit-scrollbar { display: none; }
.sb-item {
  display: flex; align-items: baseline; gap: 7px;
  padding: 0 18px; flex-shrink: 0;
}
.sb-item:first-child { padding-left: 0; }
.sb-num {
  font-family: var(--font-display);
  font-size: 20px; font-weight: 700;
  line-height: 1; font-variant-numeric: tabular-nums; color: var(--text);
}
.sb-num.accent { color: var(--cyan); text-shadow: 0 0 20px rgba(66,215,210,.36); }
.sb-label { font-size: 10px; font-weight: 500; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); }
.sb-sep   { width: 1px; height: 24px; background: var(--border); flex-shrink: 0; }

/* ═══════════════════════════════════════════════════════════════════════════
   WALL
   ═══════════════════════════════════════════════════════════════════════════ */
.wall-wrap {
  position: relative; background: #020508; border-radius: 8px;
  border: 1px solid rgba(255,255,255,.05); aspect-ratio: 16/9; overflow: hidden;
}
.wall-wrap video { display: block; width: 100%; height: 100%; object-fit: contain; background: #020508; }
.wall-status { position: absolute; inset: 0; display: grid; place-items: center; color: var(--muted); font-size: 13px; background: rgba(2,5,8,.78); }
.wall-status.hidden { display: none; }
.wall-actions { position: absolute; top: 10px; right: 10px; display: flex; gap: 7px; z-index: 2; }
#wall-frame:fullscreen video, #wall-frame:-webkit-full-screen video { object-fit: cover; }

/* ═══════════════════════════════════════════════════════════════════════════
   CAMERA CARD GRID
   ═══════════════════════════════════════════════════════════════════════════ */
.cam-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 10px; }

.cam-card[data-idx="0"] { --cc: var(--cam-1); }
.cam-card[data-idx="1"] { --cc: var(--cam-2); }
.cam-card[data-idx="2"] { --cc: var(--cam-3); }
.cam-card[data-idx="3"] { --cc: var(--cam-4); }
.cam-card[data-idx="4"] { --cc: var(--cam-5); }
.cam-card[data-idx="5"] { --cc: var(--cam-6); }
.cam-card[data-idx="6"] { --cc: var(--cam-7); }
.cam-card[data-idx="7"] { --cc: var(--cam-8); }
.cam-card[data-idx="8"] { --cc: var(--cam-9); }

.cam-card {
  --cc: var(--cyan);
  position: relative; aspect-ratio: 16/10;
  border-radius: 8px; border: 1px solid var(--border); border-left: 3px solid var(--cc);
  background: rgba(6,13,22,.60); overflow: hidden; cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease;
  display: flex; flex-direction: column; justify-content: flex-end;
}
.cam-card::before { content: ""; position: absolute; inset: 0; background: var(--glass-shine); pointer-events: none; z-index: 1; }
.cam-card:hover { transform: translateY(-2px); box-shadow: 0 0 0 1px var(--cc), 0 8px 26px color-mix(in srgb, var(--cc) 20%, transparent); }
.cam-card.offline { opacity: .40; cursor: default; }
.cam-card.offline:hover { transform: none; box-shadow: none; }

.cam-thumb {
  position: absolute; inset: 0; z-index: 0;
  background: #030810;
  background-size: cover; background-position: center;
}
.cam-thumb video { width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity .35s ease; display: block; }
.cam-thumb video.visible { opacity: 1; }

.cam-footer {
  position: relative; z-index: 2;
  padding: 8px 10px 9px;
  background: linear-gradient(transparent, rgba(3,8,16,.92) 45%);
  display: flex; align-items: center; gap: 8px;
}
.cam-slot {
  width: 24px; height: 24px; border-radius: 5px; flex-shrink: 0;
  background: color-mix(in srgb, var(--cc) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--cc) 38%, transparent);
  color: var(--cc); font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  display: grid; place-items: center;
}
.cam-info { flex: 1; min-width: 0; }
.cam-info strong { display: block; font-size: 12px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cam-info small  { color: var(--muted); font-size: 10px; }
.cam-dot { width: 7px; height: 7px; border-radius: 50%; background: #3a5060; flex-shrink: 0; }
.cam-card:not(.offline) .cam-dot { background: var(--green); box-shadow: 0 0 8px var(--green); animation: neon-pulse 2.2s infinite; }
.cam-kbd { position: absolute; top: 7px; right: 8px; z-index: 3; opacity: 0; transition: opacity .15s; }
.cam-card:hover .cam-kbd { opacity: 1; }

/* ═══════════════════════════════════════════════════════════════════════════
   EVENTS LIST
   ═══════════════════════════════════════════════════════════════════════════ */
.events-list  { display: flex; flex-direction: column; gap: 8px; }
.events-empty { height: 90px; display: grid; place-items: center; color: var(--muted); font-size: 13px; border: 1px dashed color-mix(in srgb, var(--border) 80%, transparent); border-radius: 8px; }
.event-row {
  --ev-cc: var(--cyan);
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px;
  background: rgba(8, 17, 28, .42);
  border: 1px solid var(--border); border-left: 3px solid var(--ev-cc);
  border-radius: 8px; cursor: pointer;
  transition: background .12s;
}
.event-row:hover { background: rgba(14, 28, 44, .58); }
.ev-thumb { width: 64px; height: 48px; flex-shrink: 0; border-radius: 4px; overflow: hidden; background: #020407; }
.ev-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.ev-info  { flex: 1; min-width: 0; }
.ev-cam   { display: block; font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ev-time  { display: block; font-family: var(--font-mono); font-size: 11px; color: var(--muted); margin-top: 2px; }
.ev-play  { flex-shrink: 0; padding: 5px 11px; font-size: 12px; }

/* ═══════════════════════════════════════════════════════════════════════════
   MOTION POPUP STACK
   ═══════════════════════════════════════════════════════════════════════════ */
.motion-popup-stack {
  position: fixed; z-index: 62;
  bottom: 14px; left: 16px;
  display: flex; flex-direction: column-reverse; gap: 8px;
  pointer-events: none;
}
.motion-popup {
  --mp-cc: var(--cyan);
  display: flex; align-items: center; gap: 10px;
  width: 290px; padding: 10px 12px;
  background: var(--panel-heavy);
  backdrop-filter: blur(32px) saturate(180%);
  -webkit-backdrop-filter: blur(32px) saturate(180%);
  border: 1px solid var(--border); border-left: 3px solid var(--mp-cc);
  border-radius: 8px; box-shadow: var(--deep-shadow);
  cursor: pointer; pointer-events: all;
  transform: translateX(calc(-100% - 20px));
  opacity: 0;
  transition: transform .30s cubic-bezier(.4,0,.2,1), opacity .30s ease;
}
.motion-popup.mp-visible { transform: translateX(0); opacity: 1; }
.mp-thumb { width: 54px; height: 40px; flex-shrink: 0; border-radius: 4px; overflow: hidden; background: rgba(66,215,210,.06); }
.mp-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.mp-body  { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.mp-cam   { font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mp-time  { font-family: var(--font-mono); font-size: 10px; color: var(--muted); }
.mp-tag   { font-size: 10px; color: var(--mp-cc); text-transform: uppercase; letter-spacing: .05em; }
.mp-dismiss { flex-shrink: 0; width: 26px; height: 26px; background: none; border-color: transparent; font-size: 11px; color: var(--muted); }
.mp-dismiss:hover { border-color: var(--border); box-shadow: none; }

/* ═══════════════════════════════════════════════════════════════════════════
   SYSTEM
   ═══════════════════════════════════════════════════════════════════════════ */
.system-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 10px; }
.setting-card { padding: 18px 20px; }
.setting-card h3 { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin-bottom: 14px; }
.setting-row { padding: 9px 0; font-size: 13px; display: flex; align-items: center; justify-content: space-between; gap: 12px; border-top: 1px solid var(--border); }
.setting-row:first-of-type { border-top: none; }
.setting-row > span:first-child { color: var(--muted); }
.setting-row strong { font-family: var(--font-mono); font-size: 11px; max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.setting-toggle { display: flex; align-items: center; gap: 9px; color: var(--muted); font-size: 13px; cursor: pointer; width: 100%; }
.kbd-row { display: flex; align-items: center; justify-content: space-between; font-size: 12px; padding: 5px 0; border-top: 1px solid var(--border); }
.kbd-row:first-of-type { border-top: none; }
.kbd-row span { color: var(--muted); }

/* ═══════════════════════════════════════════════════════════════════════════
   DRILLIN — fullscreen camera view (v3: always viewport-filling)
   ═══════════════════════════════════════════════════════════════════════════ */
.drillin {
  position: fixed; inset: 0; z-index: 45;
  padding: 0; background: #000;
  display: grid; grid-template-rows: 1fr;
}
.drillin:fullscreen,
.drillin:-webkit-full-screen { inset: 0; }

/* Video layer fills entire drillin */
.detail-video {
  position: absolute; inset: 0;
  background: #020407; overflow: hidden;
}
.detail-video video {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: contain; display: block;
}
.detail-video video.crop-preview { object-fit: fill; transform-origin: 0 0; }
#crop-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.detail-video video.direct-preview { z-index: 1; }
#detail-state {
  position: absolute; z-index: 2; left: 12px; bottom: 12px;
  background: rgba(0,0,0,.62); padding: 6px 11px;
  border-radius: 5px; color: var(--muted); font-size: 12px;
}

/* ── Fullscreen overlay UI ────────────────────────────────────────────────── */

/* Camera identity — top-left */
.fs-identity {
  position: absolute; top: 16px; left: 16px; z-index: 20;
  display: flex; flex-direction: column; gap: 2px;
  pointer-events: none;
}
.fs-cam-name {
  font-size: 16px; font-weight: 700; color: #fff;
  text-shadow: 0 1px 6px rgba(0,0,0,.8);
}
.fs-cam-state {
  font-family: var(--font-mono); font-size: 11px;
  color: rgba(255,255,255,.55);
}

/* Exit button — top-right */
.fs-exit {
  position: absolute; top: 12px; right: 12px; z-index: 20;
  width: 52px; height: 52px; border-radius: 10px;
  background: rgba(8,16,26,.65);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,.22);
  color: #fff; cursor: pointer;
  display: grid; place-items: center;
}
.fs-exit:active { transform: scale(.94); }
.fs-exit:hover  { box-shadow: var(--glow-cyan); border-color: rgba(66,215,210,.42); }

/* Audio toggle — below identity */
.fs-btn {
  position: absolute; top: 72px; left: 12px; z-index: 20;
  width: 44px; height: 44px; border-radius: 8px;
  background: rgba(8,16,26,.55);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,.18);
  color: #fff; font-size: 18px; cursor: pointer;
  display: grid; place-items: center;
}
.fs-btn:active { transform: scale(.94); }
#fs-audio[aria-pressed="true"] { color: var(--cyan); box-shadow: var(--glow-cyan); }
#fs-snapshot { top: 128px; }

/* Zoom badge — bottom-left */
.fs-zoom {
  position: absolute; bottom: 16px; left: 16px; z-index: 20;
  font-family: var(--font-mono); font-size: 13px; font-weight: 700;
  color: var(--cyan); background: rgba(0,0,0,.55);
  padding: 4px 10px; border-radius: 5px;
  display: none; /* shown via JS when zoom > 1 */
  pointer-events: none;
}

/* ═══════════════════════════════════════════════════════════════════════════
   PTZ OVERLAY — full-screen edge-positioned buttons
   ═══════════════════════════════════════════════════════════════════════════ */
.ptz-overlay {
  position: absolute; inset: 0; z-index: 10;
  pointer-events: none;
}
.ptz-overlay.hidden { display: block; } /* keep in DOM, use pointer-events */
.ptz-btn {
  position: absolute; pointer-events: all;
  background: rgba(8,16,26,.45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,.22);
  color: #fff; border-radius: 50%; cursor: pointer;
  font-size: 28px; font-weight: 700;
  width: 80px; height: 80px;
  display: grid; place-items: center;
  transition: background .1s, opacity .2s ease;
  box-shadow: 0 4px 20px rgba(0,0,0,.35);
}
.ptz-btn:active {
  background: rgba(66,215,210,.32);
  transform: scale(.93);
}
.ptz-btn:hover {
  background: rgba(8,16,26,.68);
  border-color: rgba(66,215,210,.5);
  box-shadow: var(--glow-cyan);
}

/* Edge positions */
.ptz-up    { top: 5%;    left: 50%; transform: translateX(-50%); }
.ptz-down  { bottom: 5%; left: 50%; transform: translateX(-50%); }
.ptz-left  { left: 5%;  top: 50%;  transform: translateY(-50%); }
.ptz-right { right: 5%; top: 50%;  transform: translateY(-50%); }
/* Active states override transform to avoid losing translateX/Y */
.ptz-up:active    { top: 5%;    left: 50%; transform: translateX(-50%) scale(.93); }
.ptz-down:active  { bottom: 5%; left: 50%; transform: translateX(-50%) scale(.93); }
.ptz-left:active  { left: 5%;  top: 50%;  transform: translateY(-50%) scale(.93); }
.ptz-right:active { right: 5%; top: 50%;  transform: translateY(-50%) scale(.93); }

/* Zoom +/- — bottom-right corner, smaller */
.ptz-zin  {
  bottom: 14%; right: 12%;
  width: 60px; height: 60px; font-size: 26px;
  border-radius: 50%;
}
.ptz-zout {
  bottom: 6%; right: 12%;
  width: 60px; height: 60px; font-size: 26px;
  border-radius: 50%;
}

/* Hidden PTZ: pointer-events off, slightly transparent */
.ptz-overlay.hidden .ptz-btn { pointer-events: none; opacity: 0; }
.ptz-overlay:not(.hidden) .ptz-btn { opacity: 1; }

/* ═══════════════════════════════════════════════════════════════════════════
   PRESET STRIP (ONVIF presets)
   ═══════════════════════════════════════════════════════════════════════════ */
.preset-strip {
  position: absolute; bottom: 5%; left: 50%;
  transform: translateX(-50%);
  display: flex; gap: 8px; z-index: 15;
  flex-wrap: wrap; justify-content: center;
  max-width: 80%;
  pointer-events: all;
}
.preset-btn {
  background: rgba(8,16,26,.65);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.20);
  color: #fff; border-radius: 6px;
  padding: 7px 14px;
  font-size: 12px; font-weight: 500; cursor: pointer;
  transition: background .1s;
}
.preset-btn:active { background: rgba(66,215,210,.28); }
.preset-btn:hover  { background: rgba(66,215,210,.14); border-color: rgba(66,215,210,.5); }

/* ═══════════════════════════════════════════════════════════════════════════
   LOGIN
   ═══════════════════════════════════════════════════════════════════════════ */
.sheet-backdrop {
  position: fixed; z-index: 60; inset: 0;
  display: grid; place-items: center;
  background: rgba(2,6,10,.74);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.login-card { width: min(380px, calc(100vw - 28px)); padding: 32px 30px; }
.login-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 6px; }
.login-card h2 { font-size: 24px; margin: 18px 0 4px; }
.login-card label { display: block; font-size: 11px; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); margin: 16px 0 0; }
.login-card input {
  display: block; width: 100%; margin-top: 7px;
  padding: 12px 14px; border-radius: 7px;
  border: 1px solid var(--border);
  background: rgba(6,12,20,.85); color: var(--text);
  font-size: 14px; font-family: var(--font-ui);
}
.login-card input:focus { outline: none; border-color: rgba(66,215,210,.48); box-shadow: 0 0 0 3px rgba(66,215,210,.10); }
.login-card .primary { width: 100%; margin-top: 20px; padding: 13px; font-size: 14px; border-radius: 7px; }
.error { min-height: 16px; color: var(--red); font-size: 13px; margin-top: 10px; }

/* ═══════════════════════════════════════════════════════════════════════════
   TOAST & UTILS
   ═══════════════════════════════════════════════════════════════════════════ */
.toast {
  position: fixed; z-index: 70;
  left: 50%; bottom: 14px;
  transform: translateX(-50%);
  padding: 10px 16px;
  background: rgba(6,14,22,.94);
  border: 1px solid var(--neon-border); border-radius: 6px;
  box-shadow: var(--glow-cyan); font-size: 13px; white-space: nowrap;
}
.hidden { display: none !important; }

/* ═══════════════════════════════════════════════════════════════════════════
   USER MANAGEMENT
   ═══════════════════════════════════════════════════════════════════════════ */
.users-card-hdr {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 12px;
}
.users-card-hdr h3 { margin-bottom: 0; }

.user-row {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 0; border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.user-row:last-child { border-bottom: none; }
.user-name { font-weight: 600; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-role { font-size: 11px; padding: 2px 8px; border-radius: 10px; border: 1px solid var(--border); color: var(--muted); flex-shrink: 0; }
.user-actions { display: flex; gap: 4px; flex-shrink: 0; }
.user-actions button {
  width: 28px; height: 28px; border-radius: 6px; font-size: 13px;
  background: rgba(255,255,255,.07); border: 1px solid var(--border);
  color: var(--text); cursor: pointer;
  display: grid; place-items: center;
}
.user-actions button:hover { background: rgba(255,255,255,.14); }
.user-actions .del-btn:hover { background: rgba(200,50,40,.4); border-color: rgba(220,80,60,.5); }

.user-form {
  display: flex; flex-direction: column; gap: 10px;
  padding: 12px 0; border-bottom: 1px solid var(--border); margin-bottom: 4px;
}
.user-form label { font-size: 11px; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); }
.user-form input[type="text"],
.user-form input[type="password"],
.user-form select {
  display: block; width: 100%; margin-top: 5px;
  padding: 8px 10px; border-radius: 6px;
  background: rgba(255,255,255,.07); border: 1px solid var(--border);
  color: var(--text); font-size: 13px; font-family: var(--font-ui);
}
.user-form input:focus,
.user-form select:focus { outline: none; border-color: rgba(66,215,210,.48); }
.user-form select option { background: #0a1825; }
.perm-grid { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 5px; }
.perm-toggle {
  display: flex; align-items: center; gap: 5px;
  font-size: 12px; cursor: pointer; color: var(--text);
  background: rgba(255,255,255,.05); border: 1px solid var(--border);
  border-radius: 5px; padding: 4px 8px;
}
.perm-toggle input { accent-color: var(--cyan); width: 13px; height: 13px; }
.form-actions { display: flex; gap: 6px; }
.form-actions button { padding: 7px 14px; border-radius: 6px; font-size: 13px; cursor: pointer; }
.form-actions .primary-btn {
  background: rgba(66,215,210,.22); border: 1px solid rgba(66,215,210,.45);
  color: var(--cyan);
}
.form-actions .cancel-btn {
  background: rgba(255,255,255,.07); border: 1px solid var(--border); color: var(--text);
}

/* ═══════════════════════════════════════════════════════════════════════════
   RUNTIME CONTROL
   ═══════════════════════════════════════════════════════════════════════════ */
.danger-chip {
  background: rgba(180,40,30,.32) !important;
  border-color: rgba(220,80,60,.45) !important;
  color: #ff9f96 !important;
}
.danger-chip:hover { background: rgba(200,50,40,.5) !important; }

/* ═══════════════════════════════════════════════════════════════════════════
   PLAYBACK BROWSER
   ═══════════════════════════════════════════════════════════════════════════ */
#fs-playback { top: 184px; }

.playback-panel {
  position: absolute; inset: 0; z-index: 30;
  background: rgba(5,13,20,0.96);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  display: flex; flex-direction: column; gap: 14px;
  padding: 16px 16px 24px; overflow-y: auto;
}
.pb-header {
  display: flex; justify-content: space-between; align-items: center;
  flex-shrink: 0;
}
.pb-cam-name { font-size: 16px; font-weight: 700; color: var(--text); }
.pb-close {
  width: 36px; height: 36px; border-radius: 8px;
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.18);
  color: #fff; cursor: pointer; font-size: 16px;
  display: grid; place-items: center; flex-shrink: 0;
}
.pb-calendar {
  display: flex; gap: 8px; overflow-x: auto; padding-bottom: 4px;
  flex-wrap: nowrap; flex-shrink: 0;
}
.pb-calendar::-webkit-scrollbar { height: 4px; }
.pb-calendar::-webkit-scrollbar-thumb { background: rgba(255,255,255,.15); border-radius: 2px; }
.pb-day-chip {
  flex-shrink: 0;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 8px; padding: 8px 14px;
  font-size: 13px; cursor: pointer; color: var(--text);
  transition: background .1s;
}
.pb-day-chip:hover { background: rgba(255,255,255,.12); }
.pb-day-chip.active {
  background: rgba(66,215,210,.20); border-color: rgba(66,215,210,.5);
  color: var(--cyan);
}
.pb-timeline-wrap { flex-shrink: 0; }
.pb-timeline-label {
  font-family: var(--font-mono); font-size: 11px; color: var(--muted); margin-bottom: 6px;
}
.pb-timeline {
  position: relative; height: 60px;
  background: rgba(255,255,255,.04); border-radius: 8px;
  border: 1px solid var(--border); overflow: hidden;
}
.pb-seg {
  position: absolute; top: 4px; bottom: 4px;
  background: rgba(66,215,210,.35); border-radius: 4px; cursor: pointer;
  border: 1px solid rgba(66,215,210,.55); transition: background .1s;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: 10px; color: rgba(255,255,255,.8);
  overflow: hidden; white-space: nowrap;
  min-width: 2px;
}
.pb-seg:hover, .pb-seg.active { background: rgba(66,215,210,.65); }

#pb-video {
  width: 100%; border-radius: 8px; max-height: 40vh;
  background: #000; display: block;
}
.pb-segment-info {
  font-family: var(--font-mono); font-size: 11px; color: var(--muted);
  margin-top: 6px; text-align: center;
}
.pb-empty {
  color: var(--muted); font-size: 13px; text-align: center; padding: 24px 0;
}

/* ═══════════════════════════════════════════════════════════════════════════
   KEYFRAMES
   ═══════════════════════════════════════════════════════════════════════════ */
@keyframes shimmer    { from { transform: translateX(0); } to { transform: translateX(420%); } }
@keyframes neon-pulse { 50% { opacity: .48; } }
@keyframes fade-up    { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* ═══════════════════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════════════════ */
@media (max-width: 960px) {
  .cam-grid { grid-template-columns: repeat(2, 1fr); }
  .topbar, .section-nav { padding: 0 14px; }
  .chip { display: none; }
  .motion-popup { width: calc(100vw - 32px); }
  .ptz-btn { width: 64px; height: 64px; font-size: 22px; }
  .ptz-zin, .ptz-zout { width: 50px; height: 50px; font-size: 20px; }
}
@media (max-width: 520px) {
  :root { --page-pad: 10px; }
  .sb-num { font-size: 16px; }
  .sb-item { padding: 0 12px; }
  .cam-grid { grid-template-columns: 1fr 1fr; }
  .system-grid { grid-template-columns: 1fr; }
  .topbar-clock { display: none; }
  .ptz-btn { width: 56px; height: 56px; font-size: 20px; }
  .ptz-zin, .ptz-zout { width: 44px; height: 44px; font-size: 18px; }
  .fs-exit { width: 44px; height: 44px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}