* { box-sizing: border-box; }
:root {
  --bg: #0c0e17;
  --panel: #12162200;
  --card: #161b2b;
  --card-2: #1c2237;
  --border: #262d45;
  --text: #eef0f6;
  --muted: #8891ab;
  --purple: #8b6bff;
  --blue: #4b9fff;
  --pink: #ff6bb3;
  --green: #2ecc71;
  --red: #ff5c7a;
  --yellow: #ffc857;
  --grad: linear-gradient(135deg, #8b6bff, #4b9fff);
}

* { scrollbar-width: thin; scrollbar-color: #333c5a #12162200; }

body {
  margin: 0;
  font-family: "Inter", -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}
.hidden { display: none !important; }
svg { fill: currentColor; }

/* ---------- Login ---------- */
.login-screen {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #0a0c14;
}
.login-glow {
  position: absolute;
  width: 900px;
  height: 900px;
  background: radial-gradient(circle, rgba(139, 107, 255, 0.35), transparent 60%);
  filter: blur(10px);
  animation: float 8s ease-in-out infinite alternate;
  top: -300px;
  left: 50%;
  transform: translateX(-50%);
}
@keyframes float {
  from { transform: translate(-55%, -20px) scale(1); }
  to { transform: translate(-45%, 20px) scale(1.08); }
}
.login-card {
  position: relative;
  background: rgba(22, 27, 43, 0.85);
  backdrop-filter: blur(18px);
  border: 1px solid var(--border);
  padding: 44px 40px;
  border-radius: 24px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  width: 340px;
  text-align: center;
  animation: pop-in .5s cubic-bezier(.2, .8, .2, 1);
}
@keyframes pop-in {
  from { opacity: 0; transform: translateY(16px) scale(.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.login-logo {
  width: 56px; height: 56px;
  margin: 0 auto 16px;
  border-radius: 16px;
  background: var(--grad);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 24px; color: #fff;
  box-shadow: 0 8px 24px rgba(139, 107, 255, 0.4);
}
.login-card h1 { margin: 0 0 4px; color: #fff; font-size: 22px; font-weight: 800; }
.login-sub { color: var(--muted); font-size: 13px; margin: 0 0 20px; }
.login-card input {
  width: 100%;
  padding: 13px 14px;
  margin-bottom: 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #0e1220;
  color: #fff;
  font-size: 14px;
  transition: border-color .2s, box-shadow .2s;
}
.login-card input:focus {
  outline: none;
  border-color: var(--purple);
  box-shadow: 0 0 0 3px rgba(139, 107, 255, 0.25);
}
.login-card button {
  width: 100%;
  padding: 13px;
  border: none;
  border-radius: 12px;
  background: var(--grad);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease;
  box-shadow: 0 8px 20px rgba(139, 107, 255, 0.35);
}
.login-card button:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(139, 107, 255, 0.5); }
.login-card button:active { transform: translateY(0); }
.error-text { color: var(--red); min-height: 18px; font-size: 13px; margin: 10px 0 0; }

/* ---------- Layout ---------- */
.app { display: flex; height: 100vh; animation: fade-in .4s ease; }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }

.sidebar {
  width: 230px;
  background: #10131f;
  display: flex;
  flex-direction: column;
  padding: 22px 16px;
  border-right: 1px solid var(--border);
}
.sidebar-title {
  font-weight: 800;
  color: #fff;
  margin-bottom: 26px;
  font-size: 17px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--grad);
  box-shadow: 0 0 12px rgba(139, 107, 255, 0.8);
}
.instance-switcher {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 4px;
  margin-bottom: 18px;
  background: #0e1220;
  border: 1px solid var(--border);
  border-radius: 12px;
}
.instance-btn {
  background: none;
  border: none;
  color: var(--muted);
  text-align: left;
  padding: 9px 12px;
  border-radius: 9px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: background .18s ease, color .18s ease;
}
.instance-btn:hover { background: #1a2033; color: #fff; }
.instance-btn.active {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 4px 14px rgba(139, 107, 255, 0.35);
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  background: none;
  border: none;
  color: var(--muted);
  text-align: left;
  padding: 11px 14px;
  border-radius: 12px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 4px;
  transition: background .18s ease, color .18s ease, transform .12s ease;
}
.nav-btn svg { width: 18px; height: 18px; flex-shrink: 0; opacity: .85; }
.nav-btn:hover { background: #1a2033; color: #fff; transform: translateX(2px); }
.nav-btn.active {
  background: linear-gradient(135deg, rgba(139, 107, 255, 0.18), rgba(75, 159, 255, 0.12));
  color: #fff;
  box-shadow: inset 0 0 0 1px rgba(139, 107, 255, 0.35);
}
.sidebar-spacer { flex: 1; }
.sidebar-status {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  font-size: 13px;
  color: var(--muted);
}
.nav-btn.logout { color: var(--red); }
.nav-btn.logout:hover { background: rgba(255, 92, 122, 0.12); }

.status-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.status-dot.running { background: var(--green); box-shadow: 0 0 0 0 rgba(46, 204, 113, .6); animation: pulse-dot 1.6s infinite; }
.status-dot.stopped { background: var(--red); }
@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 rgba(46, 204, 113, .6); }
  70% { box-shadow: 0 0 0 8px rgba(46, 204, 113, 0); }
  100% { box-shadow: 0 0 0 0 rgba(46, 204, 113, 0); }
}

.content { flex: 1; padding: 30px 40px 40px; overflow-y: auto; }
.page-header { margin-bottom: 22px; }
.page-header h2 { margin: 0 0 4px; font-size: 24px; font-weight: 800; }
.page-sub { margin: 0; color: var(--muted); font-size: 14px; }
.page-sub code { font-family: "JetBrains Mono", monospace; background: var(--card-2); padding: 1px 6px; border-radius: 5px; font-size: 12px; }

.tab { display: none; }
.tab.active { display: block; animation: slide-up .35s cubic-bezier(.2, .8, .2, 1); }
@keyframes slide-up { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.muted { color: var(--muted); font-size: 12px; font-weight: 500; }

/* ---------- Power card ---------- */
.power-card {
  background: linear-gradient(160deg, var(--card), var(--card-2));
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 26px 30px;
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  position: relative;
  overflow: hidden;
}
.power-left { display: flex; align-items: center; gap: 18px; }
.power-ring {
  position: relative;
  width: 76px; height: 76px;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.power-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring-bg { fill: none; stroke: rgba(255,255,255,0.06); stroke-width: 8; }
.power-ring::after {
  content: "";
  position: absolute; inset: 0;
  border-radius: 50%;
  transition: box-shadow .3s ease;
}
.power-ring.running::after { box-shadow: 0 0 0 6px rgba(46, 204, 113, 0.12), 0 0 30px rgba(46, 204, 113, 0.35); }
.power-ring.stopped::after { box-shadow: 0 0 0 6px rgba(255, 92, 122, 0.10); }
.power-icon {
  position: absolute;
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  transition: color .3s ease, background .3s ease;
}
.power-ring.running .power-icon { color: var(--green); background: rgba(46, 204, 113, 0.12); }
.power-ring.stopped .power-icon { color: var(--red); background: rgba(255, 92, 122, 0.1); }
.power-icon svg { width: 20px; height: 20px; }

.power-info { display: flex; flex-direction: column; gap: 6px; }
.badge { display: inline-block; padding: 4px 12px; border-radius: 20px; font-size: 11px; font-weight: 800; letter-spacing: .6px; width: fit-content; }
.badge.running { background: rgba(46, 204, 113, 0.15); color: var(--green); }
.badge.stopped { background: rgba(255, 92, 122, 0.15); color: var(--red); }

.power-actions { display: flex; gap: 10px; margin-left: auto; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 18px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  font-weight: 700;
  font-size: 13px;
  color: #fff;
  transition: transform .15s ease, box-shadow .15s ease, filter .15s ease;
}
.btn svg { width: 16px; height: 16px; }
.btn:hover { transform: translateY(-2px); filter: brightness(1.08); }
.btn:active { transform: translateY(0); }
.btn.start { background: linear-gradient(135deg, #2ecc71, #22a85f); box-shadow: 0 8px 18px rgba(46, 204, 113, 0.3); }
.btn.stop { background: linear-gradient(135deg, #ff5c7a, #e2405f); box-shadow: 0 8px 18px rgba(255, 92, 122, 0.3); }
.btn.restart { background: linear-gradient(135deg, #4b9fff, #3d7fe0); box-shadow: 0 8px 18px rgba(75, 159, 255, 0.3); }
.btn.send { background: var(--grad); box-shadow: 0 8px 18px rgba(139, 107, 255, 0.3); }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; filter: none; }

.power-footer {
  width: 100%;
  display: flex;
  gap: 28px;
  padding-top: 18px;
  margin-top: 4px;
  border-top: 1px solid var(--border);
}
.footer-stat { display: flex; flex-direction: column; gap: 3px; }
.footer-label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; font-weight: 600; }
.footer-value { font-size: 15px; font-weight: 700; font-variant-numeric: tabular-nums; }

/* ---------- Gauges ---------- */
.gauge-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 22px; }
.gauge-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.gauge-card:hover { transform: translateY(-3px); box-shadow: 0 14px 30px rgba(0,0,0,.35); border-color: #333c5a; }
.gauge { width: 64px; height: 64px; flex-shrink: 0; transform: rotate(-90deg); }
.gauge-track { fill: none; stroke: rgba(255,255,255,0.07); stroke-width: 10; }
.gauge-fill {
  fill: none; stroke-width: 10; stroke-linecap: round;
  stroke-dasharray: 326.7;
  stroke-dashoffset: 326.7;
  transition: stroke-dashoffset .6s cubic-bezier(.2,.8,.2,1);
}
.fill-purple { stroke: var(--purple); }
.fill-blue { stroke: var(--blue); }
.fill-pink { stroke: var(--pink); }
.fill-green { stroke: var(--green); }
.gauge-value { font-size: 19px; font-weight: 800; }
.gauge-name { font-size: 12px; color: var(--muted); font-weight: 600; margin-top: 2px; }

.info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.info-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px 20px;
  transition: transform .2s ease, border-color .2s ease;
}
.info-card:hover { transform: translateY(-3px); border-color: #333c5a; }
.info-title { font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .5px; margin-bottom: 8px; }
.info-value { font-size: 17px; font-weight: 700; font-variant-numeric: tabular-nums; }

/* ---------- Console ---------- */
.console-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
}
.console-titlebar {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px;
  background: var(--card-2);
  border-bottom: 1px solid var(--border);
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.red { background: #ff5c5c; }
.dot.yellow { background: #ffc857; }
.dot.green { background: #2ecc71; }
.console-title { margin-left: 10px; font-size: 12px; color: var(--muted); font-family: "JetBrains Mono", monospace; }
.clear-btn {
  margin-left: auto;
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 5px 12px;
  border-radius: 8px;
  font-size: 12px;
  cursor: pointer;
  transition: color .15s ease, border-color .15s ease;
}
.clear-btn:hover { color: #fff; border-color: var(--purple); }
.console-titlebar.vps { border-bottom-color: rgba(255, 200, 87, 0.3); background: linear-gradient(90deg, rgba(255, 200, 87, 0.08), transparent); }
.prompt.vps { color: var(--yellow); }

.console {
  background: #0a0c14;
  height: 55vh;
  overflow-y: auto;
  padding: 16px;
  font-family: "JetBrains Mono", Consolas, monospace;
  font-size: 13px;
  line-height: 1.6;
  color: #b9f6c3;
  white-space: pre-wrap;
  word-break: break-word;
}
.console div { animation: line-in .18s ease; }
.console .err-text { color: var(--red); }
.console .muted-line { color: var(--muted); font-size: 12px; }
@keyframes line-in { from { opacity: 0; transform: translateY(2px); } to { opacity: 1; transform: translateY(0); } }

.console-input-row {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 16px;
  border-top: 1px solid var(--border);
}
.prompt { color: var(--purple); font-family: "JetBrains Mono", monospace; font-weight: 700; }
.console-input-row input {
  flex: 1;
  padding: 11px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0e1220;
  color: #fff;
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  transition: border-color .2s, box-shadow .2s;
}
.console-input-row input:focus {
  outline: none;
  border-color: var(--purple);
  box-shadow: 0 0 0 3px rgba(139, 107, 255, 0.2);
}

/* ---------- Files ---------- */
.drop-zone {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
  border: 2px dashed var(--border);
  border-radius: 18px;
  padding: 40px 20px;
  text-align: center;
  cursor: pointer;
  color: var(--muted);
  transition: border-color .2s ease, background .2s ease, transform .15s ease;
  margin-bottom: 16px;
}
.drop-zone svg { width: 34px; height: 34px; color: var(--purple); margin-bottom: 4px; }
.drop-zone:hover { border-color: var(--purple); background: rgba(139, 107, 255, 0.06); }
.drop-zone.drag-over { border-color: var(--purple); background: rgba(139, 107, 255, 0.12); transform: scale(1.01); }
.drop-zone strong { color: #fff; }

.file-upload-row { display: flex; gap: 14px; margin-bottom: 20px; align-items: center; justify-content: space-between; }

.file-table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; }
.file-table th, .file-table td { text-align: left; padding: 13px 16px; border-bottom: 1px solid var(--border); font-size: 14px; }
.file-table tr:last-child td { border-bottom: none; }
.file-table tbody tr { transition: background .15s ease; }
.file-table tbody tr:hover { background: rgba(139, 107, 255, 0.05); }
.file-table th { color: var(--muted); font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: .5px; background: var(--card-2); }
.file-table button {
  background: rgba(255, 92, 122, 0.12);
  color: var(--red);
  border: none;
  padding: 7px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  font-size: 12px;
  transition: background .15s ease;
}
.file-table button:hover { background: rgba(255, 92, 122, 0.22); }

/* ---------- Toasts ---------- */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 999;
}
.toast {
  background: var(--card-2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--purple);
  color: #fff;
  padding: 13px 18px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 10px 30px rgba(0,0,0,.4);
  animation: toast-in .3s cubic-bezier(.2,.8,.2,1);
  min-width: 220px;
}
.toast.success { border-left-color: var(--green); }
.toast.error { border-left-color: var(--red); }
.toast.leaving { animation: toast-out .25s ease forwards; }
@keyframes toast-in { from { opacity: 0; transform: translateX(30px); } to { opacity: 1; transform: translateX(0); } }
@keyframes toast-out { to { opacity: 0; transform: translateX(30px); } }

@media (max-width: 900px) {
  .gauge-grid { grid-template-columns: repeat(2, 1fr); }
  .info-grid { grid-template-columns: 1fr; }
  .power-actions { margin-left: 0; }
}