/* IAM — minimal black/white/gray gradient theme */
:root {
  --bg: #0c0c0d;
  --bg-2: #131316;
  --panel: #17171b;
  --panel-2: #1d1d22;
  --border: #2a2a31;
  --border-2: #3a3a44;
  --text: #e9e9ec;
  --text-dim: #a8a8b0;
  --muted: #6e6e78;
  --accent: #ffffff;
  --danger: #ff6b6b;
  --warn: #f1c27d;
  --ok: #9be59b;
  --grad-panel: linear-gradient(180deg, #1a1a1f 0%, #131318 100%);
  --grad-head: linear-gradient(180deg, #202027 0%, #15151a 100%);
  --grad-pill: linear-gradient(180deg, #2c2c34 0%, #1c1c22 100%);
  --grad-btn: linear-gradient(180deg, #f4f4f6 0%, #d8d8de 100%);
  --grad-bar: linear-gradient(90deg, #4a4a55 0%, #c9c9d2 100%);
  --shadow: 0 1px 0 rgba(255,255,255,0.04) inset, 0 8px 24px rgba(0,0,0,0.35);
  --radius: 10px;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--sans);
  font-size: 14px;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 80% -10%, #1c1c22 0%, transparent 60%),
    radial-gradient(800px 500px at 0% 110%, #18181d 0%, transparent 60%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
a:hover { color: #fff; }

/* App shell */
.app { display: grid; grid-template-columns: 232px 1fr; min-height: 100vh; }
.sidebar {
  background: linear-gradient(180deg, #101015 0%, #08080a 100%);
  border-right: 1px solid var(--border);
  padding: 22px 14px;
  display: flex; flex-direction: column; gap: 18px;
  position: sticky; top: 0; height: 100vh;
}
.brand { display:flex; align-items:center; gap:10px; padding: 4px 8px; }
.brand-mark { font-size: 16px; color: #d8d8de; }
.brand-name { font-weight: 700; letter-spacing: 0.06em; }
.sidebar nav { display:flex; flex-direction:column; gap: 2px; }
.sidebar nav a {
  padding: 9px 10px; border-radius: 8px; color: var(--text-dim);
  font-size: 13px; letter-spacing: 0.01em;
  border: 1px solid transparent;
}
.sidebar nav a:hover { background: var(--panel); color: var(--text); border-color: var(--border); }
.sidebar nav a.active {
  background: var(--grad-panel); color: #fff; border-color: var(--border-2);
  box-shadow: var(--shadow);
}
.sidebar-foot { margin-top: auto; padding: 10px 8px; border-top: 1px solid var(--border); }

.main { display:flex; flex-direction:column; min-width: 0; }
.topbar {
  display:flex; justify-content:space-between; align-items:center;
  padding: 16px 28px; border-bottom: 1px solid var(--border);
  background: var(--grad-head);
  position: sticky; top: 0; z-index: 5;
}
.crumb { font-weight: 600; letter-spacing: 0.01em; }
.user { display:flex; align-items:center; gap: 14px; }
.content { padding: 22px 28px; display:flex; flex-direction:column; gap: 18px; flex: 1; }
.foot { padding: 16px 28px; border-top: 1px solid var(--border); }

/* Cards */
.card {
  background: var(--grad-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
}
.card h2 { margin: 0 0 12px; font-size: 16px; font-weight: 600; letter-spacing: 0.01em; }
.card h3 { margin: 14px 0 8px; font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-dim); }
.card-head { display:flex; justify-content:space-between; align-items:center; margin-bottom: 12px; gap: 10px; }
.card-actions { display:flex; gap: 8px; align-items:center; }

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }
@media (max-width: 1100px) { .grid-5 { grid-template-columns: repeat(2,1fr); } .grid-2 { grid-template-columns: 1fr; } }

.stat {
  display:block; padding: 16px; border-radius: var(--radius);
  background: var(--grad-panel); border:1px solid var(--border);
  box-shadow: var(--shadow);
}
.stat-label { color: var(--text-dim); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; }
.stat-num { font-size: 28px; font-weight: 700; margin-top: 4px; }
.big-num { font-size: 30px; font-weight: 700; margin: 6px 0; }

/* Tables */
.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th, .table td { padding: 9px 10px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
.table th { font-weight: 600; color: var(--text-dim); font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; }
.table tbody tr:hover { background: rgba(255,255,255,0.02); }
.table-sub th, .table-sub td { padding: 6px 10px; }
.indent { padding-left: 24px !important; position: relative; }
.indent::before { content: "↳"; color: var(--muted); position: absolute; left: 8px; }

.row-actions { white-space: nowrap; text-align: right; }
.row-actions .btn { margin-left: 4px; }

/* Pills + utility */
.pill {
  display: inline-block; font-size: 11px; padding: 2px 8px; border-radius: 999px;
  background: var(--grad-pill); border: 1px solid var(--border-2); color: var(--text-dim);
  letter-spacing: 0.04em; text-transform: lowercase;
}
.pill-ipv4 { color: #fff; }
.pill-ipv6 { color: #fff; }
.pill.danger { color: var(--danger); border-color: #5a2a2a; }
.mono { font-family: var(--mono); }
.small { font-size: 12px; }
.muted { color: var(--muted); }
.warn { color: var(--warn); }
.full { grid-column: 1 / -1; }

/* Buttons */
.btn {
  display: inline-flex; align-items:center; gap: 6px;
  padding: 7px 12px; border-radius: 8px; font-size: 13px; font-weight: 500;
  border: 1px solid var(--border-2); background: var(--panel-2); color: var(--text);
  cursor: pointer; line-height: 1; transition: background 120ms ease, border-color 120ms ease;
}
.btn:hover { background: #25252b; border-color: #4a4a55; }
.btn-primary { background: var(--grad-btn); color: #0c0c0d; border-color: #cdcdd4; font-weight: 600; }
.btn-primary:hover { background: linear-gradient(180deg, #fff 0%, #e4e4ea 100%); color: #000; }
.btn-ghost { background: transparent; border-color: transparent; color: var(--text-dim); }
.btn-ghost:hover { background: var(--panel); color: #fff; border-color: var(--border); }
.btn-ghost.danger { color: var(--danger); }
.btn.block { width: 100%; justify-content: center; padding: 10px 12px; }

/* Forms */
.form { display: flex; flex-direction: column; gap: 12px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 18px; }
.form label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--text-dim); }
.form input, .form select, .form textarea {
  font: inherit; color: var(--text);
  background: #0e0e12; border: 1px solid var(--border); border-radius: 8px;
  padding: 9px 10px; outline: none;
}
.form input:focus, .form select:focus, .form textarea:focus { border-color: #6e6e78; }
.form .actions { display:flex; gap: 8px; align-items:center; margin-top: 6px; }
.form .inline { display: inline; }

.assign-row { display:grid; grid-template-columns: 2fr 1fr 2fr; gap: 8px; margin-bottom: 8px; }

/* Definition list */
.kv { display: grid; grid-template-columns: 200px 1fr; gap: 6px 16px; margin: 0; }
.kv dt { color: var(--text-dim); font-size: 12px; }
.kv dd { margin: 0; }

/* Range blocks (IP ranges index) */
.range-block { border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; margin-bottom: 14px; background: var(--bg-2); }
.range-head { display:flex; justify-content:space-between; align-items:center; gap: 14px; margin-bottom: 8px; }
.range-head .big { font-size: 15px; font-weight: 600; }
.util { display:flex; flex-direction:column; align-items:flex-end; gap: 4px; min-width: 220px; }
.util-bar { width: 200px; height: 6px; background: #1f1f25; border-radius: 999px; overflow: hidden; border: 1px solid var(--border); }
.util-bar.inline-bar { display:inline-block; vertical-align: middle; margin-right: 8px; }
.util-bar > span { display:block; height:100%; background: var(--grad-bar); }

/* Flash */
.flash { padding: 10px 14px; border-radius: 8px; border: 1px solid var(--border); margin: 0 28px; }
.flash-ok { background: #14201a; border-color: #2c4a3a; color: var(--ok); }
.flash-err { background: #2a1414; border-color: #5a2a2a; color: var(--danger); }
.flash-info { background: var(--panel); }

/* ==== Login page ==== */
.login-body {
  margin: 0; min-height: 100vh;
  background-size: cover; background-position: center; background-repeat: no-repeat;
  font-family: var(--sans); color: var(--text);
}
.login-vignette {
  position: fixed; inset: 0;
  background: radial-gradient(120% 80% at 50% 50%, rgba(0,0,0,0) 0%, rgba(0,0,0,0.55) 100%),
              linear-gradient(180deg, rgba(0,0,0,0.25), rgba(0,0,0,0.55));
  pointer-events: none;
}
.login-wrap {
  min-height: 100vh; display:flex; align-items:center; justify-content:center; padding: 24px; position: relative; z-index: 1;
}
.login-card {
  width: 100%; max-width: 380px;
  padding: 30px 28px 24px;
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(20,20,24,0.55) 0%, rgba(10,10,12,0.45) 100%);
  border: 1px solid rgba(255,255,255,0.18);
  box-shadow: 0 30px 80px rgba(0,0,0,0.55), 0 1px 0 rgba(255,255,255,0.08) inset;
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  display: flex; flex-direction: column; gap: 14px;
}
.login-card h1 {
  margin: 0; font-size: 18px; font-weight: 600; letter-spacing: 0.02em; text-align: center;
}
.login-card label { display:flex; flex-direction:column; gap: 5px; font-size: 12px; color: var(--text-dim); }
.login-card input {
  font: inherit; color: var(--text);
  background: rgba(0,0,0,0.35);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 8px; padding: 10px 12px; outline: none;
}
.login-card input:focus { border-color: rgba(255,255,255,0.45); }
.login-foot { text-align: center; color: var(--text-dim); margin: 6px 0 0; }