/* gre-hub — dark, flat, editorial-minimal UI */

:root {
  --bg: #111110;
  --bg-raised: #171716;
  --surface: #1b1b19;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #e8e6e1;
  --text-muted: #8b887f;
  --text-faint: #5d5b54;
  --accent: #e8e6e1;
  --green-bg: rgba(120, 180, 130, 0.14);
  --green-fg: #8fce9c;
  --red-bg: rgba(200, 90, 85, 0.16);
  --red-fg: #e08b86;
  --yellow-bg: rgba(200, 165, 80, 0.14);
  --yellow-fg: #d4b06a;
  --blue-bg: rgba(90, 150, 200, 0.14);
  --blue-fg: #7fb3dd;
  --gray-bg: rgba(255, 255, 255, 0.06);
  --gray-fg: #a3a097;
  --sans: 'SF Pro Display', 'Helvetica Neue', 'Segoe UI', 'Switzer', sans-serif;
  --mono: 'SF Mono', 'JetBrains Mono', 'Cascadia Mono', Consolas, monospace;
  --radius: 8px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Ambient depth, barely-there */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(900px 500px at 80% -10%, rgba(232, 230, 225, 0.025), transparent 60%);
  z-index: 0;
}

h1, h2, h3 { font-weight: 600; letter-spacing: -0.02em; line-height: 1.2; }

a { color: var(--blue-fg); text-decoration: none; }

code, kbd, pre, .mono { font-family: var(--mono); font-size: 0.92em; }

kbd {
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  background: var(--surface);
  padding: 0 5px;
  font-size: 11px;
}

/* ---------- Layout ---------- */

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 1;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}

.brand {
  font-size: 17px;
  font-weight: 650;
  letter-spacing: -0.02em;
}
.brand span { color: var(--text-muted); font-weight: 400; }

.nav { display: flex; gap: 4px; margin-left: 16px; }

.nav button {
  background: none;
  border: none;
  color: var(--text-muted);
  font: inherit;
  font-size: 13px;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
}
.nav button:hover { color: var(--text); background: var(--gray-bg); }
.nav button.active { color: var(--text); background: var(--gray-bg); }

.topbar .spacer { flex: 1; }

.page { padding: 40px 0 96px; }

.page-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 28px;
}
.page-head h2 { font-size: 22px; }
.page-head .sub { color: var(--text-muted); font-size: 13px; }
.servers-meta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
#auto-refresh-status { color: var(--text-faint); font-family: var(--mono); font-size: 11px; }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: #141413;
  border: none;
  border-radius: 6px;
  font: inherit;
  font-size: 13px;
  font-weight: 550;
  padding: 8px 16px;
  cursor: pointer;
  transition: transform 120ms ease, opacity 120ms ease;
}
.btn:hover { opacity: 0.88; }
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.4; cursor: default; }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-strong);
}
.btn-ghost:hover { border-color: var(--text-muted); opacity: 1; }

.btn-danger {
  background: var(--red-bg);
  color: var(--red-fg);
  border: 1px solid rgba(200, 90, 85, 0.35);
}
.btn-danger:hover { background: rgba(200, 90, 85, 0.26); opacity: 1; }

.btn-sm { padding: 4px 10px; font-size: 12px; }

/* ---------- Badges ---------- */

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 9999px;
  padding: 2px 10px;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
}
.badge.green { background: var(--green-bg); color: var(--green-fg); }
.badge.red { background: var(--red-bg); color: var(--red-fg); }
.badge.yellow { background: var(--yellow-bg); color: var(--yellow-fg); }
.badge.blue { background: var(--blue-bg); color: var(--blue-fg); }
.badge.gray { background: var(--gray-bg); color: var(--gray-fg); }

/* ---------- Server cards ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 16px;
}

.server-groups { display: grid; gap: 30px; }
.server-group { min-width: 0; }
.server-group-head {
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
  padding-bottom: 8px;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0;
  text-transform: uppercase;
}
.server-group-head::before { content: ''; width: 3px; height: 13px; border-radius: 2px; background: var(--text-faint); }
.server-group.iran .server-group-head::before { background: var(--blue-fg); }
.server-group.foreign .server-group-head::before { background: var(--yellow-fg); }
.server-group.dual .server-group-head::before { background: var(--green-fg); }
.server-group-count { color: var(--text-faint); font-family: var(--mono); font-weight: 500; }

.card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  cursor: pointer;
  transition: box-shadow 200ms ease, border-color 200ms ease;
  animation: rise 500ms cubic-bezier(0.16, 1, 0.3, 1) both;
  animation-delay: calc(var(--i, 0) * 60ms);
}
.card:hover {
  border-color: var(--border-strong);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
}

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 4px;
}
.card-name { font-size: 16px; font-weight: 600; letter-spacing: -0.01em; }
.card-host { color: var(--text-muted); font-family: var(--mono); font-size: 12px; }

.card-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 14px 0 16px;
  min-height: 20px;
}

.card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-faint);
  font-size: 12px;
  margin-top: 14px;
}

.card-peers-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

.peer-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
}

.peer-chip {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-muted);
  white-space: nowrap;
}

.public-paths { border-top: 1px solid var(--border); margin-top: 14px; padding-top: 12px; display: grid; gap: 10px; }
.public-path-pair { display: grid; gap: 4px; }
.public-path-peer { color: var(--text-muted); font-size: 11px; }
.public-path-line { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; font-family: var(--mono); font-size: 10.5px; }
.public-path-line .route { color: var(--text-muted); word-break: break-all; }
.public-path-line .state { font-weight: 700; white-space: nowrap; }
.public-path-line.pass .state { color: var(--green-fg); }
.public-path-line.fail .state { color: var(--red-fg); }
.public-path-blocked { color: var(--red-fg); font-size: 11px; font-weight: 650; }

.dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: 1px;
}
.dot.ok { background: var(--green-fg); }
.dot.warn { background: var(--yellow-fg); }
.dot.err { background: var(--red-fg); }
.dot.unknown { background: var(--text-faint); }

/* ---------- Auth ---------- */

.auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
}

.auth-box {
  width: 360px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
  animation: rise 500ms cubic-bezier(0.16, 1, 0.3, 1) both;
}
.auth-box h1 { font-size: 20px; margin-bottom: 6px; }
.auth-box .sub { color: var(--text-muted); font-size: 13px; margin-bottom: 28px; }

/* ---------- Forms ---------- */

.field { margin-bottom: 16px; }
.field label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}
.field input, .field select, .field textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font: inherit;
  font-size: 13px;
  padding: 8px 12px;
  outline: none;
  transition: border-color 150ms ease;
}
.field textarea { font-family: var(--mono); resize: vertical; min-height: 110px; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--border-strong); }
.field .hint { font-size: 11px; color: var(--text-faint); margin-top: 4px; }

.form-row { display: flex; gap: 12px; }
.form-row .field { flex: 1; }

.form-error {
  color: var(--red-fg);
  font-size: 12.5px;
  margin: 4px 0 12px;
  min-height: 18px;
}

.connectivity-panel {
  border: 1px solid rgba(200, 90, 85, 0.5);
  border-left: 3px solid var(--red-fg);
  border-radius: 6px;
  background: var(--red-bg);
  color: var(--text);
  margin: 8px 0 14px;
  padding: 12px;
  font-size: 12px;
}
.connectivity-panel.checking { border-color: var(--border-strong); border-left-color: var(--blue-fg); background: var(--blue-bg); }
.connectivity-panel strong { display: block; color: var(--red-fg); margin-bottom: 6px; }
.connectivity-panel.checking strong { color: var(--blue-fg); margin: 0; }
.connectivity-panel .direction { display: flex; justify-content: space-between; gap: 10px; font-family: var(--mono); margin-top: 4px; }
.connectivity-panel .direction span:last-child { font-weight: 700; }

/* ---------- Drawer ---------- */

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 40;
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms ease;
}
.overlay.open { opacity: 1; pointer-events: auto; }

.drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(860px, 94vw);
  background: var(--bg);
  border-left: 1px solid var(--border);
  z-index: 50;
  transform: translateX(100%);
  transition: transform 280ms cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
}
.drawer.open { transform: translateX(0); }

.drawer-head {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 28px;
  border-bottom: 1px solid var(--border);
}
.drawer-head h2 { font-size: 17px; }
.drawer-head .meta { color: var(--text-muted); font-family: var(--mono); font-size: 12px; }

.drawer-tabs { display: flex; gap: 2px; margin-left: 12px; }
.drawer-tabs button {
  background: none;
  border: none;
  color: var(--text-muted);
  font: inherit;
  font-size: 13px;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
}
.drawer-tabs button.active { color: var(--text); background: var(--gray-bg); }

.icon-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-muted);
  font: inherit;
  font-size: 13px;
  width: 30px;
  height: 30px;
  cursor: pointer;
  line-height: 1;
}
.icon-btn:hover { color: var(--text); border-color: var(--border-strong); }

.drawer-body { flex: 1; overflow-y: auto; padding: 28px; }
.drawer-body.flush { padding: 0; overflow: hidden; display: flex; flex-direction: column; }

/* ---------- Detail sections ---------- */

.section { margin-bottom: 32px; }
.section h3 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 14px;
}

.kv {
  display: grid;
  grid-template-columns: 180px 1fr;
  row-gap: 8px;
  font-size: 13px;
}
.kv dt { color: var(--text-muted); }
.kv dd { font-family: var(--mono); font-size: 12.5px; word-break: break-all; }

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
}
table.data th {
  text-align: left;
  color: var(--text-faint);
  font-weight: 500;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
}
table.data td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 12px;
}
table.data tr:last-child td { border-bottom: none; }

.empty {
  color: var(--text-faint);
  font-size: 13px;
  padding: 24px 0;
  text-align: center;
}

/* ---------- Actions tab ---------- */

.action-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px;
  margin-bottom: 24px;
}

.action-btn {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font: inherit;
  font-size: 13px;
  text-align: left;
  padding: 12px 14px;
  cursor: pointer;
  transition: border-color 150ms ease;
}
.action-btn:hover { border-color: var(--border-strong); }
.action-btn .desc { display: block; color: var(--text-faint); font-size: 11.5px; margin-top: 2px; }
.action-btn.danger { border-color: rgba(200, 90, 85, 0.35); color: var(--red-fg); }
.action-btn:disabled { opacity: 0.4; cursor: default; }

.output-pane {
  background: #0c0c0b;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 380px;
  overflow-y: auto;
  color: #c9c6bf;
}

/* ---------- Modal ---------- */

.modal-wrap {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 60;
  display: none;
  align-items: center;
  justify-content: center;
}
.modal-wrap.open { display: flex; }

.modal {
  width: min(480px, 92vw);
  max-height: 88vh;
  overflow-y: auto;
  background: var(--bg-raised);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  padding: 32px;
  animation: rise 300ms cubic-bezier(0.16, 1, 0.3, 1) both;
}
.modal.wide { width: min(720px, 94vw); }
.modal h2 { font-size: 17px; margin-bottom: 4px; }
.modal .sub { color: var(--text-muted); font-size: 13px; margin-bottom: 24px; }
.modal .foot { display: flex; justify-content: flex-end; gap: 10px; margin-top: 24px; }

/* ---------- Terminal ---------- */

.term-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 12px;
}

#terminal-container {
  flex: 1;
  background: #0c0c0b;
  padding: 8px;
  min-height: 300px;
}

/* ---------- Toast ---------- */

#toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  color: var(--text);
  font-size: 13px;
  padding: 10px 18px;
  z-index: 80;
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms ease, transform 200ms ease;
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
#toast.error { border-color: rgba(200, 90, 85, 0.5); color: var(--red-fg); }

.hidden { display: none !important; }
.muted { color: var(--text-muted); }

@media (max-width: 480px) {
  .container { padding: 0 16px; }

  .topbar {
    flex-wrap: wrap;
    gap: 10px;
    padding: 14px 0;
  }

  .topbar .brand { order: 1; }
  .topbar .spacer { display: none; }
  #btn-logout { order: 1; margin-left: auto; }

  .topbar .nav {
    order: 2;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: 100%;
    margin-left: 0;
  }

  .topbar .nav button {
    min-width: 0;
    padding-inline: 6px;
    white-space: nowrap;
  }

  .page { padding-top: 28px; }
}