/* ============================================================
   ORBITAL EYE · dark sci-fi HUD stylesheet
   System font stack · no external assets
   ============================================================ */

/* ---------- Design tokens ---------- */
:root{
  --bg-0:#04060c;      /* deepest */
  --bg-1:#070b14;      /* panel base */
  --bg-2:#0b1220;      /* card base */
  --bg-3:#101a2c;      /* raised */
  --line:#1a2640;      /* hairline border */
  --line-2:#243455;

  --cyn:#22d3ee;       /* primary accent */
  --cyn-2:#06b6d4;
  --cyn-glow:rgba(34,211,238,.45);
  --teal:#14b8a6;
  --ind:#6366f1;

  --amber:#f59e0b;
  --red:#ef4444;
  --green:#22c55e;
  --blue:#3b82f6;

  --txt:#cfe0f5;       /* primary text */
  --txt-dim:#7f93b3;   /* secondary */
  --txt-faint:#54658a; /* tertiary */
  --hdr:#eaf2ff;       /* headings */

  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;

  --r:10px;            /* radius */
  --ease:cubic-bezier(.22,1,.36,1);
}

*{ box-sizing:border-box; margin:0; padding:0; }
html,body{ height:100%; }
body{
  font-family:var(--sans);
  color:var(--txt);
  background:var(--bg-0);
  overflow:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body::before{ /* subtle vignette + grid */
  content:""; position:fixed; inset:0; z-index:0; pointer-events:none;
  background:
    radial-gradient(120% 90% at 50% 0%, rgba(20,40,80,.35) 0%, transparent 55%),
    radial-gradient(80% 80% at 80% 100%, rgba(10,60,70,.22) 0%, transparent 60%),
    linear-gradient(180deg, #050810 0%, #04060c 100%);
}
body::after{ /* scanlines */
  content:""; position:fixed; inset:0; z-index:999; pointer-events:none; opacity:.05;
  background:repeating-linear-gradient(0deg, rgba(180,220,255,.6) 0 1px, transparent 1px 3px);
  mix-blend-mode:overlay;
}

a{ color:inherit; text-decoration:none; }
button{ font:inherit; color:inherit; cursor:pointer; border:none; background:none; }
ul{ list-style:none; }

.skip-link{
  position:absolute; left:8px; top:-48px; z-index:1000;
  background:var(--cyn); color:#041015; font-weight:700; padding:8px 14px; border-radius:6px;
  transition:top .2s var(--ease);
}
.skip-link:focus{ top:8px; }

:focus-visible{ outline:2px solid var(--cyn); outline-offset:2px; border-radius:4px; }

/* ---------- App shell ---------- */
.app{
  position:relative; z-index:1;
  display:flex; flex-direction:column;
  height:100vh; width:100vw;
}

/* ---------- HUD bar (header) ---------- */
.hud-bar{
  display:flex; align-items:center; gap:18px;
  padding:10px 20px;
  background:linear-gradient(180deg, rgba(12,20,38,.92), rgba(7,12,24,.82));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  flex-wrap:wrap;
  position:relative;
}
.hud-bar::after{ /* bottom glow line */
  content:""; position:absolute; left:0; right:0; bottom:-1px; height:1px;
  background:linear-gradient(90deg, transparent, var(--cyn-glow), transparent);
}

.hud-brand{ display:flex; align-items:center; gap:12px; flex-shrink:0; }
.brand-mark{ position:relative; line-height:0; }
.brand-mark svg{ display:block; filter:drop-shadow(0 0 8px var(--cyn-glow)); }
.hud-ring{ stroke:var(--cyn); }
.brand-core{ fill:var(--cyn); }
.brand-dot{ fill:var(--cyn-2); }
.brand-text{ display:flex; flex-direction:column; line-height:1.15; }
.brand-name{ font-size:19px; font-weight:800; letter-spacing:3px; color:var(--hdr); }
.brand-sub{ font-size:10.5px; letter-spacing:1.5px; color:var(--txt-faint); }

.hud-nav{ display:flex; gap:4px; flex:1; justify-content:center; padding:2px; }
.nav-tab{
  display:inline-flex; align-items:center; gap:8px;
  padding:8px 14px; border-radius:8px; font-size:14px; font-weight:600;
  color:var(--txt-dim); position:relative; letter-spacing:.4px;
  transition:color .25s var(--ease), background .25s var(--ease);
}
.nav-tab svg{ width:18px; height:18px; opacity:.85; }
.nav-tab:hover{ color:var(--txt); background:rgba(34,211,238,.08); }
.nav-tab.is-active{ color:var(--cyn); background:rgba(34,211,238,.12); }
.nav-tab.is-active::after{
  content:""; position:absolute; left:12px; right:12px; bottom:-3px; height:2px; border-radius:2px;
  background:var(--cyn); box-shadow:0 0 10px var(--cyn-glow);
}

.hud-status{ display:flex; align-items:center; gap:12px; font-family:var(--mono); font-size:12px; color:var(--txt-dim); }
.live-dot{ position:relative; width:9px; height:9px; border-radius:50%; background:var(--green); box-shadow:0 0 8px var(--green); }
.live-dot span{ position:absolute; inset:-3px; border-radius:50%; background:var(--green); animation:ping 2s cubic-bezier(0,0,.2,1) infinite; }
.live-lbl{ letter-spacing:1.5px; color:var(--green); font-weight:700; }
.clk{ color:var(--cyn); font-weight:600; min-width:66px; text-align:center; }
.btn-icon{
  width:32px; height:32px; border-radius:7px; display:grid; place-items:center;
  color:var(--txt-dim); border:1px solid var(--line);
  transition:color .2s, border-color .2s, background .2s;
}
.btn-icon:hover{ color:var(--cyn); border-color:var(--cyn); background:rgba(34,211,238,.08); }

@keyframes ping{ 70%{ transform:scale(1.9); opacity:0; } 100%{ opacity:0; } }

/* ---------- Views ---------- */
.views{ flex:1; position:relative; overflow:hidden; }
.view{
  position:absolute; inset:0; padding:20px 22px 18px;
  overflow:auto;
  opacity:0; transform:translateY(10px); pointer-events:none;
  transition:opacity .4s var(--ease), transform .4s var(--ease);
}
.view.is-active{ opacity:1; transform:none; pointer-events:auto; z-index:1; }
.view-head{ margin-bottom:16px; }
.view-head h1{ font-size:clamp(18px, 2vw, 24px); font-weight:800; letter-spacing:1px; color:var(--hdr); }
.view-meta{ margin-top:4px; font-family:var(--mono); font-size:11.5px; color:var(--txt-faint); letter-spacing:1px; }

/* ---------- Cards ---------- */
.card{
  background:linear-gradient(180deg, var(--bg-2), var(--bg-1));
  border:1px solid var(--line); border-radius:var(--r);
  position:relative; overflow:hidden;
}
.card::before{ /* corner bracket */
  content:""; position:absolute; top:0; left:0; width:16px; height:16px;
  border-top:2px solid var(--cyn); border-left:2px solid var(--cyn); opacity:.6;
}
.card::after{
  content:""; position:absolute; bottom:0; right:0; width:16px; height:16px;
  border-bottom:2px solid var(--cyn-2); border-right:2px solid var(--cyn-2); opacity:.6;
}
.card-hd{
  display:flex; align-items:center; justify-content:space-between;
  padding:11px 14px 8px; border-bottom:1px solid var(--line);
  font-size:12.5px; font-weight:700; letter-spacing:1px; color:var(--txt-dim);
}

/* stat cards */
.stat-grid{
  display:grid; grid-template-columns:repeat(3, 1fr); gap:14px;
  margin-bottom:16px;
}
.stat{ padding:14px 15px 12px; display:flex; flex-direction:column; gap:6px; }
.card-hd .card-ico{ font-size:16px; opacity:.9; }
.ico-sats{ color:var(--cyn); } .ico-debris{ color:var(--ind); } .ico-alert{ color:var(--amber); }
.ico-cov{ color:var(--teal); } .ico-track{ color:var(--blue); } .ico-link{ color:var(--green); }

.stat-val{ font-family:var(--mono); font-size:30px; font-weight:800; color:var(--hdr); letter-spacing:1px; display:flex; align-items:baseline; gap:5px; }
.stat-val small{ font-size:13px; color:var(--txt-faint); font-weight:600; }
.stat-trend{ font-size:11.5px; font-weight:700; font-family:var(--mono); display:flex; align-items:center; gap:4px; }
.stat-trend.up{ color:var(--green); } .stat-trend.down{ color:var(--red); }
.stat-trend.flat{ color:var(--txt-faint); }

.spark{ height:34px; width:100%; display:block; }
.spark polyline{ transition:d .5s var(--ease); }

/* gauge ring */
.gauge-ring{
  position:relative; width:66px; height:66px; align-self:flex-end; margin:-6px -6px 0 auto;
}
.gauge-ring svg{ transform:rotate(-90deg); }
.gauge-val{
  position:absolute; inset:0; display:grid; place-items:center;
  font-family:var(--mono); font-size:13px; font-weight:800; color:var(--hdr);
}

/* dashboard two-column */
.dash-two{ display:grid; grid-template-columns:1.4fr 1fr; gap:14px; }
.trend-panel{ min-height:210px; }
.recent-panel{ min-height:210px; display:flex; flex-direction:column; }
.recent-list{ flex:1; overflow:auto; padding:6px 8px; display:flex; flex-direction:column; gap:8px; }
.recent-item{
  display:flex; gap:10px; align-items:flex-start; padding:8px 10px; border-radius:8px;
  border:1px solid var(--line); background:rgba(255,255,255,.015); font-size:12.5px;
  transition:background .2s, border-color .2s;
}
.recent-item:hover{ background:rgba(34,211,238,.06); border-color:var(--line-2); }
.recent-time{ font-family:var(--mono); color:var(--txt-faint); font-size:11px; flex-shrink:0; }
.recent-msg{ color:var(--txt); }
.recent-tag{
  display:inline-block; padding:1px 6px; border-radius:4px; font-size:10px; font-weight:700;
  letter-spacing:.5px; margin-right:6px;
}
.tag-ok{ background:rgba(34,197,94,.15); color:var(--green); }
.tag-warn{ background:rgba(245,158,11,.15); color:var(--amber); }
.tag-crit{ background:rgba(239,68,68,.15); color:var(--red); }
.tag-info{ background:rgba(59,130,246,.15); color:var(--blue); }

/* ---------- Area chart ---------- */
.area-chart{ height:150px; width:100%; display:block; padding:6px 0; }

/* ---------- Orbital view ---------- */
.orbital-wrap{ position:relative; width:100%; height:calc(100% - 46px); }
.orbital-canvas{ width:100%; height:100%; display:block; border-radius:var(--r); }
.orbital-legend{
  position:absolute; top:14px; left:14px; display:flex; flex-direction:column; gap:6px;
  font-family:var(--mono); font-size:11px; pointer-events:none;
}
.legend-row{ display:flex; align-items:center; gap:8px; background:rgba(7,12,24,.7); border:1px solid var(--line); padding:4px 9px; border-radius:20px; backdrop-filter:blur(4px); }
.legend-dot{ width:8px; height:8px; border-radius:50%; box-shadow:0 0 6px currentColor; }

.orbital-tools{ display:flex; gap:8px; margin-top:12px; flex-wrap:wrap; }
.chip{
  font-family:var(--mono); font-size:12px; font-weight:600; letter-spacing:.5px;
  padding:7px 13px; border-radius:20px; color:var(--txt-dim);
  border:1px solid var(--line); background:rgba(11,18,32,.7); backdrop-filter:blur(4px);
  transition:color .2s, border-color .2s, background .2s, transform .1s;
}
.chip:hover{ color:var(--cyn); border-color:var(--cyn); background:rgba(34,211,238,.1); }
.chip:active{ transform:scale(.96); }
.chip.is-on{ color:var(--cyn); border-color:var(--cyn); background:rgba(34,211,238,.14); box-shadow:0 0 12px var(--cyn-glow); }

.orb-detail{
  position:absolute; right:20px; top:64px; width:min(330px, 42vw); z-index:5;
  animation:popIn .3s var(--ease);
}
@keyframes popIn{ from{ opacity:0; transform:translateX(14px) scale(.98); } to{ opacity:1; transform:none; } }
.orb-detail-inner{
  background:linear-gradient(180deg, var(--bg-3), var(--bg-1));
  border:1px solid var(--line-2); border-radius:12px; padding:16px 18px;
  box-shadow:0 12px 40px rgba(0,0,0,.55), 0 0 0 1px rgba(34,211,238,.08);
}
.orb-detail-title{ display:flex; align-items:center; justify-content:space-between; margin-bottom:12px; }
.orb-detail-id{ font-family:var(--mono); font-size:18px; font-weight:800; color:var(--cyn); letter-spacing:1px; }
.orb-detail-tag{ font-size:11px; padding:2px 8px; border-radius:10px; background:rgba(59,130,246,.18); color:var(--blue); font-weight:700; }
.orb-detail-grid{ display:grid; grid-template-columns:1fr 1fr; gap:10px 14px; margin-bottom:14px; }
.orb-detail-grid dt{ font-size:10.5px; color:var(--txt-faint); letter-spacing:.5px; margin-bottom:2px; }
.orb-detail-grid dd{ font-family:var(--mono); font-size:13.5px; color:var(--hdr); font-weight:600; }
.close-orb{ width:100%; }

/* ---------- Collision view ---------- */
.cw-controls{ display:flex; flex-wrap:wrap; gap:18px; align-items:center; margin-bottom:12px; }
.filter-group{ display:flex; align-items:center; gap:10px; flex-wrap:wrap; }
.filter-lbl{ font-size:12px; font-weight:700; color:var(--txt-dim); letter-spacing:1px; }
.chips{ display:flex; gap:6px; flex-wrap:wrap; }
.cw-count{ font-family:var(--mono); font-size:12px; color:var(--txt-faint); margin-bottom:10px; }
.cw-count b{ color:var(--cyn); font-weight:700; }
.cw-list{ display:flex; flex-direction:column; gap:10px; }
.cw-row{
  display:grid; grid-template-columns:auto 1fr auto auto; gap:14px; align-items:center;
  padding:13px 15px; border-radius:10px; border:1px solid var(--line);
  background:linear-gradient(180deg, var(--bg-2), var(--bg-1));
  transition:border-color .25s, background .25s, transform .15s, opacity .3s;
}
.cw-row:hover{ border-color:var(--line-2); transform:translateX(3px); }
.cw-row.is-hidden{ opacity:0; transform:scale(.98); pointer-events:none; height:0; padding:0; overflow:hidden; }
.cw-sev{
  font-family:var(--mono); font-size:11px; font-weight:800; letter-spacing:1px;
  padding:4px 10px; border-radius:6px; text-transform:uppercase;
}
.sev-critical{ background:rgba(239,68,68,.16); color:var(--red); box-shadow:inset 0 0 0 1px rgba(239,68,68,.4); }
.sev-high{ background:rgba(245,158,11,.16); color:var(--amber); box-shadow:inset 0 0 0 1px rgba(245,158,11,.35); }
.sev-medium{ background:rgba(59,130,246,.16); color:var(--blue); box-shadow:inset 0 0 0 1px rgba(59,130,246,.35); }
.sev-low{ background:rgba(34,197,94,.14); color:var(--green); box-shadow:inset 0 0 0 1px rgba(34,197,94,.3); }
.cw-title{ font-weight:700; font-size:14px; color:var(--hdr); }
.cw-sub{ font-family:var(--mono); font-size:11px; color:var(--txt-faint); margin-top:3px; }
.cw-time{ font-family:var(--mono); font-size:12px; color:var(--txt-dim); white-space:nowrap; }
.cw-tcc{ font-family:var(--mono); font-size:12px; color:var(--amber); white-space:nowrap; text-align:right; }
.cw-tcc b{ display:block; font-size:15px; color:var(--hdr); }
.cw-open .cw-sev{ animation:alertPulse 1.4s infinite; }
@keyframes alertPulse{ 0%,100%{ opacity:1; } 50%{ opacity:.55; } }

/* ---------- Log view ---------- */
.log-controls{ display:flex; gap:8px; margin-bottom:12px; flex-wrap:wrap; }
.log-terminal{
  font-family:var(--mono); font-size:12.5px; line-height:1.7;
  background:linear-gradient(180deg, #040810, #060a12);
  border:1px solid var(--line); border-radius:var(--r); padding:16px 18px;
  height:calc(100% - 120px); overflow-y:auto; white-space:pre-wrap; word-break:break-word;
  scrollbar-width:thin; scrollbar-color:var(--line-2) transparent;
}
.log-terminal::-webkit-scrollbar{ width:8px; }
.log-terminal::-webkit-scrollbar-thumb{ background:var(--line-2); border-radius:4px; }
.log-line{ display:flex; gap:10px; padding:1px 0; animation:logIn .25s var(--ease); }
@keyframes logIn{ from{ opacity:0; transform:translateY(-4px); } to{ opacity:1; transform:none; } }
.log-time{ color:var(--txt-faint); flex-shrink:0; }
.log-lvl{ flex-shrink:0; width:46px; font-weight:800; letter-spacing:.5px; }
.lvl-INFO{ color:var(--blue); } .lvl-WARN{ color:var(--amber); }
.lvl-ERROR{ color:var(--red); } .lvl-CRITICAL{ color:var(--red); text-shadow:0 0 8px rgba(239,68,68,.6); }
.lvl-OK{ color:var(--green); }
.log-msg{ color:var(--txt); }
.log-terminal.paused{ opacity:.55; }

/* ---------- Footer ---------- */
.hud-footer{
  display:flex; align-items:center; justify-content:space-between; gap:10px; flex-wrap:wrap;
  padding:8px 20px; border-top:1px solid var(--line); background:rgba(7,12,24,.7);
  font-size:11.5px; font-family:var(--mono); color:var(--txt-dim);
}
.footer-cell{ display:flex; align-items:center; gap:6px; }
.footer-cell b{ color:var(--txt); font-weight:700; }
.footer-cell.tag{ color:var(--txt-faint); letter-spacing:1px; }
.dot{ width:7px; height:7px; border-radius:50%; flex-shrink:0; }
.dot.green{ background:var(--green); box-shadow:0 0 6px var(--green); }
.dot.blue{ background:var(--blue); box-shadow:0 0 6px var(--blue); }
.dot.amber{ background:var(--amber); box-shadow:0 0 6px var(--amber); }

/* ---------- Modal ---------- */
.modal{ position:fixed; inset:0; z-index:50; display:grid; place-items:center; padding:20px; }
.modal[hidden]{ display:none; }
.modal-scrim{ position:absolute; inset:0; background:rgba(2,4,10,.72); backdrop-filter:blur(6px); animation:fade .3s var(--ease); }
@keyframes fade{ from{ opacity:0; } to{ opacity:1; } }
.modal-panel{
  position:relative; z-index:1; width:min(560px, 100%);
  background:linear-gradient(180deg, var(--bg-3), var(--bg-1));
  border:1px solid var(--line-2); border-radius:14px; padding:20px 22px;
  box-shadow:0 24px 70px rgba(0,0,0,.6), 0 0 0 1px rgba(34,211,238,.1);
  animation:popIn .32s var(--ease);
}
.modal-hd{ display:flex; align-items:center; justify-content:space-between; margin-bottom:14px; }
.modal-title{ font-size:18px; font-weight:800; color:var(--hdr); letter-spacing:.5px; }
.modal-body{ font-size:14px; line-height:1.6; color:var(--txt); }
.modal-meta{ display:grid; grid-template-columns:1fr 1fr; gap:12px 16px; margin-top:8px; }
.modal-meta dt{ font-size:11px; color:var(--txt-faint); }
.modal-meta dd{ font-family:var(--mono); font-size:13px; color:var(--hdr); font-weight:600; margin-bottom:8px; }
.modal-desc{ margin-top:14px; padding-top:14px; border-top:1px solid var(--line); color:var(--txt-dim); }

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .stat-grid{ grid-template-columns:repeat(2, 1fr); }
  .dash-two{ grid-template-columns:1fr; }
}
@media (max-width:820px){
  .hud-bar{ padding:8px 14px; gap:10px; justify-content:space-between; }
  .hud-nav{ order:3; flex:1; justify-content:space-around; padding:2px 0; }
  .nav-tab{ padding:7px 9px; font-size:13px; gap:5px; }
  .nav-tab .nav-ico{ width:16px; height:16px; }
  .hud-status{ gap:8px; }
  .brand-sub{ display:none; }
  .view{ padding:16px 14px 14px; }
  .orb-detail{ top:56px; right:14px; left:14px; width:auto; }
}
@media (max-width:560px){
  .stat-grid{ grid-template-columns:1fr; }
  .brand-name{ font-size:16px; }
  .clk{ display:none; }
  .cw-row{ grid-template-columns:1fr auto; gap:10px; }
  .cw-time{ grid-column:1 / -1; }
  .modal-meta{ grid-template-columns:1fr; }
  .stat-val{ font-size:26px; }
}
@media (prefers-reduced-motion:reduce){
  *{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; }
}