/* =========================================================
   Interferometer Stabilizer — neon glassmorphism (dark UI)
   ========================================================= */

:root {
  --bg-0: #050608;
  --bg-1: #0a0c14;

  --card-grad-a: #131a2e;
  --card-grad-b: #0e1326;
  --card-border: rgba(120, 150, 220, 0.14);
  --card-border-glow: rgba(167, 139, 250, 0.35);

  --text: #f1f4ff;
  --text-dim: #aab3d0;
  --text-mute: #6e7794;

  --cyan: #22d3ee;
  --cyan-2: #38bdf8;
  --violet: #a78bfa;
  --violet-2: #7c3aed;
  --magenta: #f472b6;
  --green: #34d399;
  --red: #fb7185;
  --amber: #fbbf24;

  --grad-primary: linear-gradient(135deg, #22d3ee 0%, #a78bfa 50%, #f472b6 100%);
  --grad-accent:  linear-gradient(135deg, #a78bfa 0%, #f472b6 100%);
  --grad-success: linear-gradient(135deg, #34d399 0%, #22d3ee 100%);
  --grad-danger:  linear-gradient(135deg, #fb7185 0%, #f472b6 100%);

  --radius-xl: 26px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;

  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg-0);
  color: var(--text);
  font-family: var(--sans);
  font-size: 13px;
  letter-spacing: 0.01em;
  min-height: 100vh;
  overflow-x: hidden;
}

.brand-logo{
  width:56px;
  height:56px;
  border-radius:18px;
  background: linear-gradient(135deg,#55d6ff,#ff6ec7);

  display:flex;
  align-items:center;
  justify-content:center;
}

.brand-logo-img{
  width:32px;
  height:32px;
  object-fit:contain;
}

/* ---------- background decoration ---------- */
.bg-deco {
  position: fixed; inset: 0; z-index: -1; overflow: hidden;
}
.bg-glow {
  position: absolute;
  width: 700px; height: 700px;
  border-radius: 50%;
  filter: blur(160px);
  opacity: 0.40;
  animation: float 22s ease-in-out infinite alternate;
}
.bg-glow-a { background: radial-gradient(circle, var(--cyan) 0%, transparent 60%); top: -250px; left: -200px; }
.bg-glow-b { background: radial-gradient(circle, var(--violet) 0%, transparent 60%); bottom: -250px; right: -200px; animation-delay: -10s; }
.bg-glow-c { background: radial-gradient(circle, var(--magenta) 0%, transparent 60%); top: 40%; left: 60%; opacity: 0.18; animation-delay: -5s; }

@keyframes float {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(80px, 60px) scale(1.08); }
}

/* ---------- topbar ---------- */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 22px 36px;
  position: sticky; top: 0; z-index: 50;
  background: linear-gradient(180deg, rgba(5,6,8,0.85) 0%, rgba(5,6,8,0.5) 100%);
  backdrop-filter: blur(14px);
}
.brand { display: flex; align-items: center; gap: 16px; }
.brand-logo {
  width: 48px; height: 48px;
  border-radius: 16px;
  background: var(--grad-primary);
  display: grid; place-items: center;
  color: #0a0e1c;
  box-shadow: 0 8px 28px rgba(34,211,238,0.35);
}
.brand-title {
  font-size: 17px; font-weight: 700; letter-spacing: 0.01em;
  background: linear-gradient(90deg, #fff, #c9d3f5);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.brand-sub { font-size: 11px; color: var(--text-mute); margin-top: 2px; letter-spacing: 0.06em; }

/* status pill */
.status-pill {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 8px 18px;
  border-radius: 999px;
  background: rgba(20,24,40,0.7);
  border: 1px solid var(--card-border);
  font-size: 12px;
  font-weight: 600;
  font-family: var(--mono);
  backdrop-filter: blur(10px);
}
.status-pill.mini { padding: 4px 10px; font-size: 10.5px; }
.dot {
  width: 8px; height: 8px; border-radius: 50%;
  box-shadow: 0 0 0 0 currentColor;
}
.dot-red    { background: var(--red);   color: var(--red);   animation: pulse 1.8s ease-out infinite; }
.dot-green  { background: var(--green); color: var(--green); animation: pulse 1.8s ease-out infinite; }
.dot-amber  { background: var(--amber); color: var(--amber); animation: pulse 1.8s ease-out infinite; }
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 currentColor; }
  70%  { box-shadow: 0 0 0 8px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

/* ---------- layout ---------- */
.main {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(440px, 1fr);
  gap: 22px;
  padding: 14px 36px 50px;
}
.col-left, .col-right { display: flex; flex-direction: column; gap: 22px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }

/* ---------- card (glassmorphism) ---------- */
.card {
  position: relative;
  padding: 20px 22px;
  border-radius: var(--radius-xl);
  background:
    linear-gradient(160deg, rgba(120,150,220,0.05) 0%, rgba(120,150,220,0) 50%),
    linear-gradient(180deg, var(--card-grad-a) 0%, var(--card-grad-b) 100%);
  border: 1px solid var(--card-border);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.05) inset,
    0 18px 40px rgba(0,0,0,0.45),
    0 4px 12px rgba(0,0,0,0.35);
  backdrop-filter: blur(20px);
}
.card-grad::before {
  content: '';
  position: absolute; inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(34,211,238,0.35), rgba(167,139,250,0.25) 40%, transparent 65%, rgba(244,114,182,0.25));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  pointer-events: none;
  opacity: 0.7;
}

.card-row {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 12px;
}
.card-title-block { display: flex; flex-direction: column; gap: 4px; }
.eyebrow {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-mute);
  font-weight: 600;
}
.card-title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text);
}
.card-body { margin-top: 14px; }

/* ---------- forms ---------- */
.row { display: flex; align-items: center; }
.row.wrap { flex-wrap: wrap; }
.row.gap-sm { gap: 8px; }
.row.gap-md { gap: 14px; }
.mt { margin-top: 16px; }
.mt-sm { margin-top: 10px; }

.field {
  display: flex; flex-direction: column; gap: 5px;
  min-width: 0;
}
.field.flex-2 { flex: 2 1 220px; }
.field label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-mute);
  font-weight: 600;
}
.field input, .field select {
  background: rgba(8, 10, 20, 0.7);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  color: var(--text);
  padding: 9px 12px;
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 500;
  outline: none;
  transition: all 0.15s;
}
.field input:focus, .field select:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.18);
}
.field input[disabled] { color: var(--text-mute); cursor: not-allowed; }

.pga-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr)) auto;
  gap: 12px;
  align-items: end;
}
.acq-grid {
  display: grid;
  grid-template-columns: minmax(120px, 1fr) minmax(120px, 1fr) minmax(220px, 2fr);
  gap: 12px;
}

.cmd-strip { font-family: var(--mono); font-size: 11px; color: var(--text-dim); }
.cmd-strip code {
  background: rgba(8,10,20,0.7); padding: 3px 9px;
  border-radius: 8px; border: 1px solid var(--card-border);
  color: var(--cyan);
}
.muted { color: var(--text-mute); }

/* checkbox */
.check {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; color: var(--text-dim);
  cursor: pointer; user-select: none;
}
.check input { accent-color: var(--cyan); width: 15px; height: 15px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 18px;
  font-family: var(--sans);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
  background: rgba(30, 36, 60, 0.8);
  border: 1px solid var(--card-border);
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.08s ease, filter 0.15s, box-shadow 0.2s, background 0.15s;
}
.btn:hover { background: rgba(48, 56, 90, 0.85); border-color: rgba(160, 180, 220, 0.25); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn.full { width: 100%; }

.btn-primary {
  background: var(--grad-primary); color: #07111a;
  border-color: transparent;
  box-shadow: 0 6px 20px rgba(34, 211, 238, 0.30);
}
.btn-primary:hover { filter: brightness(1.08); box-shadow: 0 8px 26px rgba(34, 211, 238, 0.45); }

.btn-accent {
  background: var(--grad-accent); color: #150a26;
  border-color: transparent;
  box-shadow: 0 6px 20px rgba(167, 139, 250, 0.3);
}
.btn-accent:hover { filter: brightness(1.08); box-shadow: 0 8px 26px rgba(167, 139, 250, 0.45); }

.btn-success {
  background: var(--grad-success); color: #062014;
  border-color: transparent;
  box-shadow: 0 6px 20px rgba(52, 211, 153, 0.28);
}
.btn-success:hover { filter: brightness(1.08); }

.btn-danger {
  background: var(--grad-danger); color: #260712;
  border-color: transparent;
  box-shadow: 0 6px 20px rgba(251, 113, 133, 0.28);
}
.btn-danger:hover { filter: brightness(1.08); }

.btn-soft {
  background: rgba(34,211,238,0.10);
  color: var(--cyan);
  border-color: rgba(34,211,238,0.30);
}
.btn-soft:hover { background: rgba(34,211,238,0.18); }
.btn-ghost { background: transparent; color: var(--text-dim); }
.btn-ghost:hover { color: var(--text); background: rgba(255,255,255,0.05); }

/* icon tile (square rounded) */
.icon-tile {
  width: 42px; height: 42px;
  border-radius: 14px;
  background: rgba(30,36,60,0.7);
  border: 1px solid var(--card-border);
  color: var(--text-dim);
  font-size: 16px;
  cursor: pointer;
  transition: all 0.15s;
  display: grid; place-items: center;
}
.icon-tile:hover {
  color: var(--cyan);
  border-color: rgba(34,211,238,0.35);
  background: rgba(34,211,238,0.10);
}
.icon-btn {
  background: transparent; border: none; color: var(--text-dim);
  font-size: 15px; cursor: pointer; width: 30px; height: 30px;
  border-radius: 8px;
}
.icon-btn:hover { background: rgba(255,255,255,0.07); color: var(--text); }

/* ---------- sliders (custom range) ---------- */
.sliders {
  margin-top: 14px;
  display: flex; flex-direction: column;
  gap: 14px;
}
.slider-row {
  display: grid;
  grid-template-columns: 130px 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 10px 14px;
  background: rgba(8,10,20,0.55);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  transition: border-color 0.15s, background 0.15s;
}
.slider-row:hover { border-color: rgba(160,180,220,0.25); background: rgba(12,14,26,0.65); }
.slider-head { display: flex; flex-direction: column; line-height: 1.1; }
.slider-name {
  font-size: 14px; font-weight: 700; color: var(--text);
}
.slider-hint {
  font-size: 9.5px; text-transform: uppercase;
  letter-spacing: 0.16em; color: var(--text-mute);
  margin-top: 3px;
}
.slider-tail { display: flex; gap: 8px; align-items: center; }
.numbox {
  width: 90px;
  background: rgba(8,10,20,0.85);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  color: var(--text);
  padding: 7px 10px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  outline: none;
  text-align: right;
  transition: all 0.15s;
}
.numbox:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(34,211,238,0.18); }

/* custom range */
.range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: transparent;
  outline: none;
  --val: 50%;
  background: linear-gradient(
    90deg,
    #22d3ee 0%, #a78bfa var(--val),
    rgba(120,130,160,0.25) var(--val), rgba(120,130,160,0.25) 100%
  );
  border-radius: 999px;
}
.range::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 18px; height: 18px;
  background: #fff;
  border-radius: 50%;
  border: 2px solid #fff;
  box-shadow: 0 0 0 3px rgba(34,211,238,0.25), 0 4px 12px rgba(34,211,238,0.4);
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.15s;
}
.range::-webkit-slider-thumb:hover { transform: scale(1.12); box-shadow: 0 0 0 4px rgba(34,211,238,0.35), 0 6px 16px rgba(34,211,238,0.55); }
.range::-moz-range-thumb {
  width: 18px; height: 18px;
  background: #fff; border-radius: 50%; border: 2px solid #fff;
  box-shadow: 0 0 0 3px rgba(34,211,238,0.25), 0 4px 12px rgba(34,211,238,0.4);
  cursor: pointer;
}
.range::-moz-range-track { background: transparent; }

.set-btn {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  background: var(--grad-primary);
  color: #07111a;
  border: none;
  border-radius: 8px;
  padding: 7px 12px;
  cursor: pointer;
  transition: filter 0.15s, transform 0.08s;
  box-shadow: 0 4px 12px rgba(34,211,238,0.22);
}
.set-btn:hover { filter: brightness(1.08); }
.set-btn:active { transform: translateY(1px); }
.set-btn.ghost {
  background: transparent;
  color: var(--text-mute);
  box-shadow: none;
}
.set-btn.ghost:hover { color: var(--text); }

/* ---------- toggle switch ---------- */
.switch {
  display: inline-flex; align-items: center; gap: 10px;
  cursor: pointer; user-select: none;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-dim);
}
.switch input { display: none; }
.switch .slider-pill {
  width: 44px; height: 24px;
  background: rgba(10,14,26,0.85);
  border: 1px solid var(--card-border);
  border-radius: 999px;
  position: relative;
  transition: background 0.2s, border-color 0.2s;
}
.switch .slider-pill::after {
  content: ''; position: absolute;
  top: 2px; left: 2px;
  width: 18px; height: 18px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
  box-shadow: 0 2px 4px rgba(0,0,0,0.4);
}
.switch input:checked + .slider-pill {
  background: var(--grad-primary);
  border-color: transparent;
}
.switch input:checked + .slider-pill::after { transform: translateX(20px); }
.switch-label { font-weight: 700; }

/* ---------- segmented control ---------- */
.segmented {
  display: inline-flex;
  background: rgba(8,10,20,0.7);
  border: 1px solid var(--card-border);
  border-radius: 999px;
  padding: 4px;
  gap: 2px;
}
.segmented.vertical {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  width: 100%;
  margin-top: 12px;
}
.seg {
  background: transparent; border: none;
  color: var(--text-dim);
  font-family: var(--sans); font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s;
}
.seg:hover { color: var(--text); }
.seg.active {
  background: var(--grad-primary);
  color: #07111a;
  box-shadow: 0 3px 14px rgba(34,211,238,0.35);
}

/* ---------- log area ---------- */
.log-wrap {
  background: rgba(5, 7, 14, 0.8);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.log-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 12px;
  background: rgba(255,255,255,0.02);
  font-size: 10px;
  color: var(--text-mute);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
#log_area {
  margin: 0;
  padding: 12px 14px;
  font-family: var(--mono);
  font-size: 11px;
  color: #b6c7df;
  background: transparent;
  height: 170px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-word;
}
#log_area::-webkit-scrollbar { width: 8px; }
#log_area::-webkit-scrollbar-thumb { background: rgba(120,160,220,0.18); border-radius: 4px; }

/* ---------- plot cards ---------- */
.plot-card { padding: 16px 18px; }
.plot-body {
  margin-top: 12px;
  display: flex; justify-content: center;
}
canvas {
  display: block;
  background:
    linear-gradient(180deg, rgba(8,12,24,0.6), rgba(12,16,32,0.6));
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  width: 100%; height: auto;
  max-width: 100%;
}

/* ---------- popup (monitor) ---------- */
.popup {
  position: fixed;
  top: 90px; right: 30px;
  width: 540px;
  border-radius: var(--radius-xl);
  background:
    linear-gradient(180deg, var(--card-grad-a) 0%, var(--card-grad-b) 100%);
  border: 1px solid var(--card-border-glow);
  box-shadow:
    0 30px 60px rgba(0,0,0,0.6),
    0 0 40px rgba(167,139,250,0.18);
  backdrop-filter: blur(24px);
  z-index: 1000;
  animation: slideIn 0.3s ease-out;
}
@keyframes slideIn { from { transform: translateY(-12px); opacity: 0; } to { transform: none; opacity: 1; } }

.popup-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 18px;
  border-bottom: 1px solid var(--card-border);
  font-weight: 700;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-dim);
}
.popup-body { padding: 16px 18px 20px; }
.vmeter {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 12px; margin-bottom: 14px;
}
.vmeter-cell {
  display: flex; flex-direction: column; align-items: center;
  padding: 16px;
  background: rgba(8,10,20,0.7);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
}
.vmeter-label {
  font-size: 11px; text-transform: uppercase;
  letter-spacing: 0.18em; color: var(--text-mute);
  margin-bottom: 6px; font-weight: 700;
}
.vmeter-val {
  font-family: var(--mono);
  font-size: 36px;
  font-weight: 800;
  background: var(--grad-primary);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  letter-spacing: 0.02em;
}

/* ---------- dialog (analysis) ---------- */
.dialog {
  position: fixed;
  top: 30px; left: 50%; transform: translateX(-50%);
  width: min(1260px, calc(100vw - 40px));
  max-height: 92vh;
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, var(--card-grad-a) 0%, var(--card-grad-b) 100%);
  border: 1px solid var(--card-border-glow);
  box-shadow: 0 40px 90px rgba(0,0,0,0.75);
  backdrop-filter: blur(28px);
  z-index: 1100;
  overflow: hidden;
  display: flex; flex-direction: column;
  animation: slideIn 0.32s ease-out;
}
.dialog-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 22px;
  border-bottom: 1px solid var(--card-border);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.04em;
}
.dialog-body {
  padding: 18px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  overflow-y: auto;
}

.hidden { display: none !important; }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .main { grid-template-columns: 1fr; padding: 14px 20px 40px; }
  .dialog-body { grid-template-columns: 1fr; }
  .pga-grid { grid-template-columns: 1fr 1fr; }
  .acq-grid { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .popup { width: calc(100vw - 30px); right: 15px; }
  .slider-row { grid-template-columns: 110px 1fr auto; }
}
@media (max-width: 640px) {
  .topbar { padding: 16px 18px; }
  .main { padding: 12px 16px 32px; }
  .pga-grid, .acq-grid { grid-template-columns: 1fr; }
  .brand-title { font-size: 15px; }
  .slider-row { grid-template-columns: 1fr; gap: 8px; }
  .slider-tail { justify-content: flex-end; }
}