:root {
  --bg: #05060A; --surface: #0A0F1E; --surface-2: #0E1428;
  --line: rgba(148, 175, 220, 0.14); --text: #E8ECF4; --muted: #9AA7BC;
  --cyan: #00E5FF; --violet: #7C5CFF; --red: #FF3355; --amber: #FFB84D; --green: #38F2B8;
  --font-head: "Unbounded", system-ui, sans-serif;
  --font-body: "DM Sans", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --radius: 14px;
  --s1: 8px; --s2: 12px; --s3: 16px; --s4: 24px; --s5: 32px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
[hidden] { display: none !important; } /* class display rules must not beat the hidden attribute */
body { background: var(--bg); color: var(--text); font-family: var(--font-body); font-size: 15px; line-height: 1.5; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--font-head); font-weight: 700; letter-spacing: -0.01em; }
.muted { color: var(--muted); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:is(a, button, input, select, textarea):focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }

/* ---------- controls ---------- */
.btn {
  min-height: 44px; padding: 0 20px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--cyan); background: color-mix(in srgb, var(--cyan) 14%, transparent);
  color: var(--text); font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.06em;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  transition: background-color 0.2s, border-color 0.2s, opacity 0.2s;
}
.btn:hover { background: color-mix(in srgb, var(--cyan) 26%, transparent); }
.btn[disabled] { opacity: 0.5; cursor: progress; }
.btn--ghost { border-color: var(--line); background: transparent; }
.btn--ghost:hover { border-color: var(--cyan); background: color-mix(in srgb, var(--cyan) 10%, transparent); }
.btn--danger { border-color: color-mix(in srgb, var(--red) 55%, transparent); background: color-mix(in srgb, var(--red) 12%, transparent); }
.input {
  width: 100%; min-height: 44px; padding: 10px 14px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--surface-2); color: var(--text);
  font-family: var(--font-body); font-size: 14px; transition: border-color 0.2s;
}
.input:focus { border-color: var(--cyan); }
.input--sm { min-height: 40px; width: auto; font-family: var(--font-mono); font-size: 12.5px; }
textarea.input { min-height: 110px; font-family: var(--font-mono); font-size: 12.5px; line-height: 1.6; resize: vertical; }
label { display: block; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.error { color: var(--red); font-size: 13.5px; }

/* ---------- brand ---------- */
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-head); font-weight: 700; font-size: 20px; }
.brand svg { height: 20px; width: auto; }

/* ---------- login ---------- */
.login { min-height: 100svh; display: grid; place-items: center; padding: var(--s4);
  background: radial-gradient(60% 50% at 70% 10%, rgba(124, 92, 255, 0.14), transparent 70%),
              radial-gradient(50% 45% at 15% 90%, rgba(0, 229, 255, 0.12), transparent 70%), var(--bg); }
.login__card { width: min(420px, 100%); background: var(--surface); border: 1px solid var(--line);
  border-radius: 20px; padding: clamp(24px, 5vw, 38px); display: grid; gap: var(--s2); }
.login__card h1 { font-size: 26px; margin-top: var(--s2); }
.login__card p { margin-bottom: var(--s2); font-size: 14px; }
.login__card label { margin-top: var(--s1); }
.login__card .btn { margin-top: var(--s2); width: 100%; }
.login__card .foot { font-size: 12.5px; margin: var(--s2) 0 0; }

/* password field + reveal toggle */
.field { position: relative; }
.field .input, .field input { padding-right: 52px; }
.field__toggle {
  position: absolute; right: 4px; top: 50%; transform: translateY(-50%);
  width: 44px; height: 44px; display: grid; place-items: center;
  background: none; border: 0; border-radius: 10px; color: var(--muted); cursor: pointer;
  transition: color 0.2s, background-color 0.2s;
}
.field__toggle svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.7; }
.field__toggle:hover { color: var(--text); background: rgba(148, 175, 220, 0.08); }
.field__toggle[aria-pressed="true"] { color: var(--cyan); }
.hint { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.1em; color: var(--amber); }

/* 16px stops iOS zooming the page when the field takes focus */
@media (max-width: 640px) { .input, .field input { font-size: 16px; } }

/* ---------- shell ---------- */
.app { display: grid; grid-template-columns: 236px 1fr; min-height: 100svh; }
.side { border-right: 1px solid var(--line); background: var(--surface); padding: var(--s4) var(--s3);
  display: flex; flex-direction: column; gap: var(--s4); position: sticky; top: 0; height: 100svh; }
.nav { display: grid; gap: 4px; }
.nav a { display: flex; align-items: center; gap: 12px; min-height: 44px; padding: 0 12px; border-radius: 10px;
  color: var(--muted); font-size: 14.5px; transition: background-color 0.2s, color 0.2s; }
.nav a svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.nav a:hover { color: var(--text); background: var(--surface-2); }
.nav a[aria-current="page"] { color: var(--cyan); background: color-mix(in srgb, var(--cyan) 12%, transparent); }
.side__out { margin-top: auto; min-height: 44px; border: 1px solid var(--line); background: transparent;
  color: var(--muted); border-radius: 10px; cursor: pointer; font-family: var(--font-mono); font-size: 12px; }
.side__out:hover { color: var(--text); border-color: var(--red); }

.main { padding: var(--s4) clamp(16px, 3vw, 32px) 64px; min-width: 0; }
.top { display: flex; align-items: center; justify-content: space-between; gap: var(--s3); flex-wrap: wrap; margin-bottom: var(--s4); }
.top h1 { font-size: clamp(22px, 3vw, 28px); }
.top__actions { display: flex; gap: var(--s1); flex-wrap: wrap; }
.view { display: grid; gap: var(--s3); }

/* ---------- cards + tiles ---------- */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: var(--s4); }
.card h2 { font-size: 17px; margin-bottom: var(--s3); }
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: var(--s2); }
.tile { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: var(--s3) var(--s4); }
.tile__label { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); }
.tile__value { font-family: var(--font-head); font-size: 30px; font-weight: 700; margin: 6px 0 2px; }
.tile__delta { font-family: var(--font-mono); font-size: 12px; }
.up { color: var(--green); } .down { color: var(--red); }

/* ---------- chart ---------- */
.chart { width: 100%; height: 220px; }
.chart .grid { stroke: var(--line); stroke-width: 1; }
.chart .clicks { fill: none; stroke: var(--cyan); stroke-width: 2; }
.chart .impressions { fill: none; stroke: var(--violet); stroke-width: 2; stroke-dasharray: 4 4; }
.legend { display: flex; gap: var(--s4); font-family: var(--font-mono); font-size: 11.5px; color: var(--muted); margin-top: var(--s2); }
.legend i { display: inline-block; width: 14px; height: 2px; vertical-align: middle; margin-right: 6px; }

/* ---------- tables ---------- */
.tablewrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); font-weight: 500; }
td.num, th.num { text-align: right; font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
td.wrap { white-space: normal; max-width: 420px; }
tbody tr:hover { background: var(--surface-2); }
.pill { font-family: var(--font-mono); font-size: 10.5px; padding: 3px 8px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); }
.pill--ok { color: var(--green); border-color: color-mix(in srgb, var(--green) 40%, transparent); }
.pill--warn { color: var(--amber); border-color: color-mix(in srgb, var(--amber) 40%, transparent); }
.pill--bad { color: var(--red); border-color: color-mix(in srgb, var(--red) 40%, transparent); }
.linkish { color: var(--cyan); cursor: pointer; background: none; border: 0; font: inherit; padding: 0; }
.linkish:hover { text-decoration: underline; }

/* ---------- misc ---------- */
.toast { border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px; background: var(--surface-2);
  font-family: var(--font-mono); font-size: 12.5px; margin-bottom: var(--s3); }
.toast--bad { border-color: color-mix(in srgb, var(--red) 45%, transparent); color: #FFC2CD; }
.toast--ok { border-color: color-mix(in srgb, var(--green) 45%, transparent); color: #9CF7DC; }
.grid2 { display: grid; gap: var(--s3); grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.row { display: flex; gap: var(--s2); flex-wrap: wrap; align-items: center; }
.counter { font-family: var(--font-mono); font-size: 12px; color: var(--muted); }
.empty { padding: var(--s5); text-align: center; color: var(--muted); }

@media (max-width: 860px) {
  .app { grid-template-columns: 1fr; }
  .side { position: static; height: auto; flex-direction: row; align-items: center; flex-wrap: wrap; gap: var(--s2); }
  .nav { grid-auto-flow: column; grid-auto-columns: max-content; overflow-x: auto; }
  .side__out { margin: 0; padding: 0 14px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }