/* ---------- tokens ---------- */
:root, :root[data-theme="dark"] {
  --bg: #09090b;
  --canvas: #0b0b0d;
  --dot: #2a2a30;
  --surface: #131316;
  --surface2: #1a1a1f;
  --line: #26262c;
  --line2: #34343c;
  --text: #f4f4f5;
  --muted: #a1a1aa;
  --faint: #6b6b74;
  --primary-bg: #fafafa;
  --primary-fg: #09090b;
  --accent: #60a5fa;
  --up: #22c55e;
  --degraded: #f59e0b;
  --down: #ef4444;
  --testing: #60a5fa;
  --handover: #a78bfa;
  --pending: #52525b;
  --shadow: 0 1px 2px #0006, 0 8px 24px -12px #000c;
  --font: "Vazirmatn", system-ui, -apple-system, "Segoe UI", Tahoma, sans-serif;
  --mono: "JetBrains Mono", "Vazirmatn", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg: #ffffff;
  --canvas: #fbfbfb;
  --dot: #d6d6db;
  --surface: #ffffff;
  --surface2: #f5f5f6;
  --line: #e7e7ea;
  --line2: #d8d8dd;
  --text: #18181b;
  --muted: #62626b;
  --faint: #9d9da6;
  --primary-bg: #18181b;
  --primary-fg: #ffffff;
  --accent: #2563eb;
  --up: #16a34a;
  --degraded: #d97706;
  --down: #dc2626;
  --testing: #2563eb;
  --handover: #7c3aed;
  --pending: #b4b4bc;
  --shadow: 0 1px 2px #0000000d, 0 8px 24px -14px #00000033;
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { font-family: var(--font); background: var(--bg); color: var(--text); font-size: 14px; min-height: 100vh; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.mono { font-family: var(--mono); direction: ltr; unicode-bidi: isolate; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--accent); }

/* ---------- controls ---------- */
.btn, a.btn {
  height: 34px; padding: 0 13px; border-radius: 9px; border: 1px solid var(--line2); background: var(--surface); text-decoration: none;
  color: var(--text); cursor: pointer; white-space: nowrap; display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  transition: background .12s, border-color .12s;
}
.btn:hover { background: var(--surface2); }
.btn:disabled { opacity: .5; cursor: progress; }
.btn.primary { background: var(--primary-bg); color: var(--primary-fg); border-color: var(--primary-bg); font-weight: 600; }
.btn.primary:hover { opacity: .9; }
.btn.danger { color: var(--down); border-color: color-mix(in srgb, var(--down) 45%, var(--line2)); background: transparent; }
.btn.danger:hover { background: color-mix(in srgb, var(--down) 10%, transparent); }
.btn.ghost { background: transparent; border-color: transparent; }
.btn.icon { width: 34px; padding: 0; background: transparent; border-color: transparent; color: var(--muted); }
.btn.icon:hover { color: var(--text); background: var(--surface2); }
.btn.sm { height: 28px; padding: 0 10px; font-size: 12.5px; border-radius: 8px; }
.btn.wide { width: 100%; }

label { display: grid; gap: 6px; color: var(--muted); font-size: 13px; }
input, select, textarea {
  background: var(--surface); border: 1px solid var(--line2); border-radius: 9px; padding: 8px 10px; outline: none; min-height: 36px;
}
input:focus, select:focus, textarea:focus { border-color: var(--text); }
textarea { min-height: 76px; resize: vertical; font-family: var(--mono); direction: ltr; font-size: 12.5px; }
input[type="checkbox"] { width: 16px; height: 16px; min-height: 0; accent-color: var(--text); padding: 0; margin: 0; }
.check { display: flex; flex-direction: row; align-items: center; gap: 8px; color: var(--text); cursor: pointer; }

/* ---------- auth ---------- */
.auth {
  min-height: 100vh; display: grid; place-items: center; padding: 16px;
  background: radial-gradient(var(--dot) 1px, transparent 1px) 0 0 / 22px 22px, var(--canvas);
}
.auth-card { width: min(380px, 100%); background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 28px; box-shadow: var(--shadow); display: grid; gap: 14px; }
.error { color: var(--down); min-height: 1em; margin: 0; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20; display: flex; gap: 14px; align-items: center; flex-wrap: wrap;
  padding: 10px 18px; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 9px; font-weight: 700; font-size: 15px; direction: ltr; }
.brand.big { font-size: 21px; justify-content: center; }
.logo { width: 24px; height: 24px; border-radius: 7px; background: var(--text); display: inline-block; position: relative; }
.logo::after { content: ""; position: absolute; inset: 7px 5px 5px; border: 2.4px solid var(--bg); border-bottom: 0; border-radius: 10px 10px 0 0; }
.ver { font-size: 11px; color: var(--faint); font-weight: 400; }
.stats { display: flex; gap: 6px; flex-wrap: wrap; flex: 1; }
.stat { display: inline-flex; align-items: center; gap: 7px; height: 28px; padding: 0 10px; border-radius: 999px; border: 1px solid var(--line); font-size: 12.5px; color: var(--muted); }
.stat b { font-family: var(--mono); font-weight: 600; color: var(--text); }
.stat .d { width: 7px; height: 7px; border-radius: 50%; }
.stat.observe { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); cursor: pointer; }
.actions { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.live { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: 12px; margin-inline-end: 4px; }
.live i { width: 7px; height: 7px; border-radius: 50%; background: var(--down); }
.live.on i { background: var(--up); }
.menu { position: relative; }
.menu-pop { position: absolute; top: calc(100% + 6px); inset-inline-end: 0; min-width: 170px; display: none; z-index: 30; background: var(--surface); border: 1px solid var(--line2); border-radius: 12px; padding: 5px; box-shadow: var(--shadow); }
.menu-pop.open { display: grid; }
.menu-pop button { background: none; border: 0; padding: 8px 10px; text-align: start; border-radius: 8px; cursor: pointer; }
.menu-pop button:hover { background: var(--surface2); }

main { padding: 14px 18px 40px; display: grid; gap: 14px; grid-template-columns: minmax(0, 1fr); }
main > * { min-width: 0; }

/* ---------- canvas (the workbench) ---------- */
.canvas {
  position: relative; height: max(560px, calc(100vh - 150px)); overflow: hidden; border: 1px solid var(--line); border-radius: 16px;
  background-color: var(--canvas);
  background-image: radial-gradient(var(--dot) 1.1px, transparent 1.2px);
  background-size: 22px 22px;
  cursor: grab; touch-action: none; user-select: none;
}
.canvas.panning { cursor: grabbing; }
.world { position: absolute; left: 0; top: 0; transform-origin: 0 0; will-change: transform; }
.wires { position: absolute; left: 0; top: 0; width: 1px; height: 1px; overflow: visible; pointer-events: none; }
.col-title { position: absolute; font-size: 12px; font-weight: 600; color: var(--faint); letter-spacing: .3px; direction: rtl; pointer-events: none; white-space: nowrap; }

.node {
  position: absolute; width: 250px; background: var(--surface); border: 1px solid var(--line2); border-radius: 12px; padding: 11px 13px;
  box-shadow: var(--shadow); direction: rtl; cursor: pointer; transition: border-color .12s, opacity .15s, box-shadow .12s;
}
.node:hover, .node.hl { border-color: var(--text); }
.node.dragging { cursor: grabbing; box-shadow: 0 18px 40px -16px #000a; z-index: 5; transition: none; }
.world.focus .node:not(.hl) { opacity: .3; }
.node .row1 { display: flex; align-items: center; gap: 8px; }
.node .title { font-weight: 600; font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.node .role { font-size: 10.5px; color: var(--faint); border: 1px solid var(--line); border-radius: 5px; padding: 0 5px; }
.node .ip { font-family: var(--mono); font-size: 12px; color: var(--muted); direction: ltr; text-align: right; margin-top: 3px; }
.node .meta { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 8px; }
.node.offline { border-color: color-mix(in srgb, var(--down) 60%, var(--line2)); }
.node.offline::before { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; background: repeating-linear-gradient(-45deg, transparent 0 9px, color-mix(in srgb, var(--down) 7%, transparent) 9px 18px); }
.node.disabled { opacity: .5; }
.node.domain .title { font-family: var(--mono); direction: ltr; text-align: right; }

.dot { width: 9px; height: 9px; border-radius: 50%; flex: none; background: var(--pending); display: inline-block; }
.dot.online, .dot.ok, .dot.up { background: var(--up); }
.dot.offline, .dot.broken, .dot.down { background: var(--down); animation: blink 1.2s infinite; }
.dot.degraded { background: var(--degraded); }
.dot.testing { background: var(--testing); animation: blink .8s infinite; }
@keyframes blink { 50% { opacity: .3; } }

.chip { display: inline-flex; align-items: center; gap: 4px; height: 20px; padding: 0 7px; border-radius: 6px; font-size: 11px; background: var(--surface2); border: 1px solid var(--line); color: var(--muted); white-space: nowrap; }
.chip.mono { font-family: var(--mono); }
.chip.good { color: var(--up); border-color: color-mix(in srgb, var(--up) 35%, var(--line)); }
.chip.warn { color: var(--degraded); border-color: color-mix(in srgb, var(--degraded) 35%, var(--line)); }
.chip.bad { color: var(--down); border-color: color-mix(in srgb, var(--down) 35%, var(--line)); }
.chip.info { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 35%, var(--line)); }
.chip.purple { color: var(--handover); border-color: color-mix(in srgb, var(--handover) 35%, var(--line)); }
.prov { font-weight: 700; font-size: 9.5px; padding: 1px 5px; border-radius: 4px; color: #fff; letter-spacing: .3px; }
.prov.cloudflare { background: #f38020; } .prov.arvan { background: #0aa39b; }

/* wires */
.wire { fill: none; stroke-width: 1.8; stroke-linecap: round; transition: opacity .15s; }
.wire.up { stroke: var(--up); } .wire.degraded { stroke: var(--degraded); }
.wire.down { stroke: var(--down); stroke-dasharray: 5 5; }
.wire.testing { stroke: var(--testing); stroke-dasharray: 3 6; animation: dash .6s linear infinite; }
.wire.pending { stroke: var(--pending); stroke-dasharray: 2 6; }
.wire.handover { stroke: var(--handover); stroke-dasharray: 8 4; }
.wire.standby { opacity: .35; }
.wire.active { stroke-width: 2.8; }
.flowline { fill: none; stroke: var(--text); stroke-width: 1.6; stroke-linecap: round; stroke-dasharray: 1.5 14; animation: dash 1s linear infinite reverse; opacity: .75; }
.dwire { fill: none; stroke-width: 2; }
.dwire.ok { stroke: var(--text); opacity: .55; } .dwire.broken { stroke: var(--down); stroke-dasharray: 5 5; } .dwire.unknown { stroke: var(--pending); stroke-dasharray: 2 6; }
.dwire.pending-dns { stroke: var(--degraded); opacity: .9; stroke-dasharray: 6 4; animation: dash 1.2s linear infinite reverse; }
.hit { fill: none; stroke: transparent; stroke-width: 14; pointer-events: stroke; cursor: pointer; }
.dim { opacity: .07 !important; }
.wire.hl { stroke-width: 3.4; opacity: 1; }
.xwire { fill: none; stroke: var(--handover); stroke-width: 1.6; stroke-dasharray: 7 3 1.5 3; opacity: .8; }
.xwire.down { stroke: var(--down); opacity: 1; }
.wlabel.hop { pointer-events: none; } .wlabel.hop text { fill: var(--handover); } .wlabel.hop.down text { fill: var(--down); }
@keyframes dash { to { stroke-dashoffset: -18; } }
.wlabel { pointer-events: all; cursor: pointer; }
.wlabel rect { fill: var(--surface); stroke: var(--line2); }
.wlabel text { font-family: var(--mono); font-size: 10.5px; fill: var(--text); }
.wlabel.down rect { stroke: var(--down); } .wlabel.down text { fill: var(--down); }
.wlabel.degraded rect { stroke: var(--degraded); } .wlabel.testing text { fill: var(--testing); }
.wlabel.handover rect { stroke: var(--handover); } .wlabel.handover text { fill: var(--handover); }
.wlabel:hover rect { stroke: var(--text); }

.legend { position: absolute; top: 10px; inset-inline-start: 12px; display: flex; flex-wrap: wrap; gap: 4px 12px; font-size: 11.5px; color: var(--muted); background: color-mix(in srgb, var(--surface) 85%, transparent); border: 1px solid var(--line); border-radius: 10px; padding: 6px 10px; max-width: calc(100% - 24px); backdrop-filter: blur(6px); }
.legend span { display: inline-flex; align-items: center; gap: 5px; }
.sw { width: 16px; height: 2.5px; border-radius: 2px; display: inline-block; }
.sw.exit { background: repeating-linear-gradient(90deg, var(--handover) 0 5px, transparent 5px 8px); }
.sw.up { background: var(--up); } .sw.degraded { background: var(--degraded); }
.sw.down { background: repeating-linear-gradient(90deg, var(--down) 0 4px, transparent 4px 7px); }
.sw.testing { background: var(--testing); } .sw.handover { background: var(--handover); }
.legend .flow { width: 18px; height: 2px; display: inline-block; background: repeating-linear-gradient(90deg, var(--text) 0 2px, transparent 2px 7px); }
.tools { position: absolute; bottom: 12px; inset-inline-start: 12px; display: flex; align-items: center; gap: 2px; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 3px; box-shadow: var(--shadow); }
.tool { width: 30px; height: 30px; border: 0; background: none; border-radius: 7px; cursor: pointer; color: var(--muted); display: grid; place-items: center; font-size: 15px; }
.tool:hover { background: var(--surface2); color: var(--text); }
.zoom-val { font-family: var(--mono); font-size: 11.5px; color: var(--muted); min-width: 42px; text-align: center; }
.tool-sep { width: 1px; height: 18px; background: var(--line); margin: 0 3px; }
.tool-check { display: inline-flex; flex-direction: row; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); padding: 0 8px; cursor: pointer; }
.empty-hint { position: absolute; inset: 0; display: grid; place-items: center; pointer-events: none; }
.empty-card { pointer-events: all; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 18px; box-shadow: var(--shadow); display: grid; gap: 10px; width: min(460px, calc(100% - 32px)); cursor: default; }
.empty-card h3 { margin: 0; font-size: 15px; }
.empty-card ol { margin: 0; padding-inline-start: 20px; display: grid; gap: 6px; color: var(--muted); }
.empty-card li.done { color: var(--up); }

/* ---------- lower panels ---------- */
.lower { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 14px; }
@media (max-width: 1100px) { .lower { grid-template-columns: minmax(0, 1fr); } }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 14px; min-width: 0; }
.panel-head { display: flex; align-items: center; gap: 10px; justify-content: space-between; flex-wrap: wrap; margin-bottom: 10px; }
.panel-head h3 { margin: 0; font-size: 14px; }
.seg { display: inline-flex; border: 1px solid var(--line2); border-radius: 9px; overflow: hidden; }
.seg button { background: none; border: 0; padding: 5px 10px; cursor: pointer; font-size: 12px; color: var(--muted); }
.seg button.on { background: var(--surface2); color: var(--text); }

.table-wrap { overflow: auto; max-height: 420px; }
table.links { width: 100%; border-collapse: collapse; font-size: 13px; }
table.links th { text-align: start; font-weight: 500; color: var(--faint); font-size: 12px; padding: 6px 8px; border-bottom: 1px solid var(--line); white-space: nowrap; position: sticky; top: 0; background: var(--surface); }
table.links td { padding: 7px 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
table.links tr[data-link] { cursor: pointer; }
table.links tr[data-link]:hover td { background: var(--surface2); }
table.links .pair { font-weight: 500; }
table.links .act { color: var(--accent); font-size: 11px; }

.events { list-style: none; margin: 0; padding: 0; max-height: 420px; overflow: auto; display: grid; }
.events li { display: grid; grid-template-columns: 10px 1fr auto; gap: 10px; align-items: baseline; padding: 8px 4px; border-bottom: 1px solid var(--line); font-size: 13px; line-height: 1.7; }
.events li:last-child { border-bottom: 0; }
.events li.new { animation: flash 1.6s ease-out; }
@keyframes flash { from { background: var(--surface2); } }
.events .lv { width: 7px; height: 7px; border-radius: 50%; background: var(--pending); align-self: center; }
.events .error .lv { background: var(--down); } .events .success .lv { background: var(--up); } .events .warning .lv { background: var(--degraded); } .events .info .lv { background: var(--accent); }
.events time { color: var(--faint); font-family: var(--mono); font-size: 11px; white-space: nowrap; direction: ltr; }

/* ---------- drawer ---------- */
.scrim { position: fixed; inset: 0; background: #0005; opacity: 0; pointer-events: none; transition: opacity .2s; z-index: 40; }
.scrim.open { opacity: 1; pointer-events: all; }
.drawer { position: fixed; top: 0; bottom: 0; right: 0; width: min(480px, 100vw); z-index: 50; background: var(--bg); border-inline-end: 1px solid var(--line); box-shadow: 0 0 50px #0006; transform: translateX(105%); transition: transform .22s ease; overflow-y: auto; }
.drawer.open { transform: none; }
.drawer-inner { padding: 18px; display: grid; gap: 14px; grid-template-columns: minmax(0, 1fr); }
.drawer-inner > *, .box > * { min-width: 0; }
.d-head { display: flex; align-items: flex-start; gap: 10px; }
.d-head h2 { margin: 0; font-size: 17px; flex: 1; }
.d-sub { color: var(--muted); font-size: 12.5px; margin-top: 3px; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; font-size: 13px; margin: 0; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; overflow-wrap: anywhere; }
.kv dd.mono { text-align: right; }
.box { border: 1px solid var(--line); border-radius: 12px; padding: 12px; display: grid; gap: 10px; background: var(--surface); }
.box h4 { margin: 0; font-size: 12.5px; color: var(--muted); font-weight: 600; }
.btns { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.tgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.topt { border: 1px solid var(--line2); border-radius: 9px; padding: 7px 6px; text-align: center; cursor: pointer; background: var(--surface); display: grid; gap: 1px; }
.topt:hover { border-color: var(--text); }
.topt.cur { box-shadow: inset 0 0 0 1px var(--text); }
.topt.sel { background: var(--surface2); border-color: var(--text); }
.topt .n { font-family: var(--mono); font-weight: 600; font-size: 12px; }
.topt .r { font-family: var(--mono); font-size: 10.5px; color: var(--faint); }
.topt.ok .r { color: var(--up); } .topt.bad .r { color: var(--down); }
.path { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; direction: ltr; justify-content: flex-end; font-size: 13px; }
.path .arrow { color: var(--faint); }
.opt-list { display: grid; gap: 6px; }
.opt { display: flex; align-items: center; gap: 8px; padding: 7px 10px; border: 1px solid var(--line); border-radius: 9px; background: var(--surface); min-height: 40px; }
.opt .grow { flex: 1; min-width: 0; display: grid; gap: 1px; }
.opt .grow > span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.opt .sub { font-size: 11.5px; color: var(--faint); }
.opt.off { opacity: .55; }
.opt .ord { display: inline-flex; gap: 2px; }
.opt .ord button { width: 24px; height: 24px; border: 1px solid var(--line2); background: var(--surface2); border-radius: 6px; cursor: pointer; font-size: 11px; line-height: 1; }
.note { font-size: 12.5px; color: var(--muted); line-height: 1.8; margin: 0; }
.note b { color: var(--text); font-weight: 600; }

/* ---------- modal ---------- */
.modal { position: fixed; inset: 0; display: none; place-items: center; z-index: 60; background: #0007; padding: 16px; }
.modal.open { display: grid; }
.modal-card { width: min(560px, 100%); max-height: calc(100vh - 32px); overflow: auto; background: var(--bg); border: 1px solid var(--line2); border-radius: 16px; padding: 20px; display: grid; gap: 12px; box-shadow: var(--shadow); }
.modal-card h2 { margin: 0 0 4px; font-size: 17px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
@media (max-width: 520px) { .grid2 { grid-template-columns: 1fr; } }
.hint { font-size: 12px; color: var(--faint); margin: -4px 0 0; line-height: 1.7; }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 6px; }
.tchecks { display: flex; flex-wrap: wrap; gap: 6px; }
.tchecks label { flex-direction: row; display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line2); border-radius: 8px; padding: 5px 9px; color: var(--text); font-family: var(--mono); font-size: 12px; cursor: pointer; }
fieldset { border: 1px solid var(--line); border-radius: 12px; padding: 12px; display: grid; gap: 10px; margin: 0; }
legend { color: var(--muted); font-size: 12px; padding: 0 6px; }

/* ---------- tooltip & toasts ---------- */
.tip { position: fixed; z-index: 70; pointer-events: none; background: var(--surface); border: 1px solid var(--line2); border-radius: 10px; padding: 8px 10px; font-size: 12px; box-shadow: var(--shadow); max-width: 300px; opacity: 0; transition: opacity .1s; line-height: 1.75; }
.tip.show { opacity: 1; }
.toasts { position: fixed; bottom: 16px; left: 16px; z-index: 80; display: grid; gap: 8px; }
.toast { background: var(--surface); border: 1px solid var(--line2); border-inline-start: 3px solid var(--accent); border-radius: 10px; padding: 10px 14px; box-shadow: var(--shadow); max-width: 360px; animation: up .2s; }
.toast.error { border-inline-start-color: var(--down); } .toast.success { border-inline-start-color: var(--up); }
@keyframes up { from { transform: translateY(8px); opacity: 0; } }

@media (max-width: 720px) {
  .topbar { padding: 10px 16px; }
  main { padding: 12px 16px 30px; }
  .stats { order: 3; flex-basis: 100%; }
  .canvas { height: 72vh; }
  .legend { display: none; }
}