/* One stylesheet, no framework. The whole dashboard is nine screens and a
   handful of shapes, and a build step to save a few kilobytes is a build step
   that can break at three in the morning. */

:root {
  color-scheme: light;
  --plane:        #f9f9f7;
  --surface:      #fcfcfb;
  --surface-2:    #f2f1ed;
  --ink:          #0b0b0b;
  --ink-2:        #52514e;
  --muted:        #898781;
  --grid:         #e1e0d9;
  --axis:         #c3c2b7;
  --border:       rgba(11, 11, 11, 0.10);

  /* The categorical slots, in fixed order. A line keeps its colour whatever
     else is on the screen: colour follows the part of the business, never its
     position in a sorted list. */
  --series-1: #2a78d6;  /* blue    */
  --series-2: #eb6834;  /* orange  */
  --series-3: #1baf7a;  /* aqua    */
  --series-4: #eda100;  /* yellow  */
  --series-5: #e87ba4;  /* magenta */
  --series-6: #008300;  /* green   */
  --series-7: #4a3aa7;  /* violet  */
  --series-8: #e34948;  /* red     */

  --good:     #0ca30c;
  --warning:  #fab219;
  --serious:  #ec835a;
  --critical: #d03b3b;
  --good-text: #006300;

  --radius: 10px;
  --sans: system-ui, -apple-system, 'Segoe UI', sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    color-scheme: dark;
    --plane:     #0d0d0d;
    --surface:   #1a1a19;
    --surface-2: #232322;
    --ink:       #ffffff;
    --ink-2:     #c3c2b7;
    --muted:     #898781;
    --grid:      #2c2c2a;
    --axis:      #383835;
    --border:    rgba(255, 255, 255, 0.10);

    --series-1: #3987e5;
    --series-2: #d95926;
    --series-3: #199e70;
    --series-4: #c98500;
    --series-5: #d55181;
    --series-6: #008300;
    --series-7: #9085e9;
    --series-8: #e66767;
    --good-text: #0ca30c;
  }
}

[data-theme='dark'] {
  color-scheme: dark;
  --plane:     #0d0d0d;
  --surface:   #1a1a19;
  --surface-2: #232322;
  --ink:       #ffffff;
  --ink-2:     #c3c2b7;
  --muted:     #898781;
  --grid:      #2c2c2a;
  --axis:      #383835;
  --border:    rgba(255, 255, 255, 0.10);
  --series-1: #3987e5;
  --series-2: #d95926;
  --series-3: #199e70;
  --series-4: #c98500;
  --series-5: #d55181;
  --series-6: #008300;
  --series-7: #9085e9;
  --series-8: #e66767;
  --good-text: #0ca30c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--plane);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { margin: 0 0 .4rem; line-height: 1.25; font-weight: 600; }
h1 { font-size: 1.3rem; }
h2 { font-size: 1.05rem; }
h3 { font-size: .92rem; }
p  { margin: 0 0 .6rem; }
a  { color: var(--series-1); }

/* -------------------------------------------------------------- chrome -- */

header.top {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
  padding: .7rem 1.1rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
header.top .brand { font-weight: 650; letter-spacing: -0.01em; }
header.top .spacer { flex: 1; }

nav.tabs { display: flex; gap: .15rem; overflow-x: auto; padding: 0 .6rem;
  background: var(--surface); border-bottom: 1px solid var(--border);
  position: sticky; top: 3.1rem; z-index: 19; }
nav.tabs button {
  border: 0; background: none; font: inherit; color: var(--ink-2);
  padding: .55rem .7rem; cursor: pointer; white-space: nowrap;
  border-bottom: 2px solid transparent;
}
nav.tabs button:hover { color: var(--ink); }
nav.tabs button[aria-current='page'] { color: var(--ink); border-bottom-color: var(--series-1); font-weight: 600; }

main { padding: 1.1rem; max-width: 1180px; margin: 0 auto; }

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

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  margin-bottom: 1rem;
}
.card > h2:first-child, .card > h3:first-child { margin-top: 0; }
.card .sub { color: var(--ink-2); font-size: .86rem; margin: -.2rem 0 .8rem; }

.grid { display: grid; gap: 1rem; }
.grid.two   { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid.three { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }

/* ----------------------------------------------------------- stat tile -- */

.tile { background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: .85rem .95rem; }
.tile .label { color: var(--ink-2); font-size: .82rem; }
.tile .value { font-size: 1.55rem; font-weight: 650; letter-spacing: -0.02em; margin: .15rem 0 .1rem; }
.tile .delta { font-size: .82rem; font-weight: 600; display: flex; align-items: center; gap: .25rem; }
.tile .delta.up   { color: var(--good-text); }
.tile .delta.down { color: var(--critical); }
.tile .delta.flat { color: var(--muted); }
.tile .note { color: var(--muted); font-size: .76rem; margin-top: .35rem; }

/* The one number a screen leads with. Exactly one per view. */
.hero { font-size: 2.9rem; font-weight: 650; letter-spacing: -0.03em; line-height: 1.05; }
.hero-note { color: var(--ink-2); font-size: .88rem; }

/* -------------------------------------------------------------- tables -- */

table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.table-wrap { overflow-x: auto; }
th, td { text-align: left; padding: .45rem .55rem; border-bottom: 1px solid var(--grid); }
th { color: var(--ink-2); font-weight: 600; font-size: .8rem; white-space: nowrap; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tbody tr:hover { background: var(--surface-2); }
tfoot td { font-weight: 650; border-top: 1px solid var(--axis); border-bottom: 0; }

/* ------------------------------------------------------------ findings -- */

.finding { border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); padding: .9rem 1rem; margin-bottom: .7rem;
  border-left: 3px solid var(--muted); }
.finding.critical { border-left-color: var(--critical); }
.finding.warning  { border-left-color: var(--serious); }
.finding.info     { border-left-color: var(--series-1); }
.finding.good     { border-left-color: var(--good); }
.finding h3 { margin-bottom: .3rem; }
.finding .meta { display: flex; flex-wrap: wrap; gap: .4rem; align-items: center;
  margin-bottom: .45rem; font-size: .78rem; color: var(--ink-2); }
.finding .body { color: var(--ink-2); font-size: .9rem; }
.finding .action { margin-top: .5rem; font-size: .89rem; }
.finding .action strong { font-weight: 600; }
.finding .worth { font-weight: 650; color: var(--ink); font-variant-numeric: tabular-nums; }
.finding .controls { margin-top: .6rem; display: flex; gap: .35rem; flex-wrap: wrap; }

.pill { display: inline-flex; align-items: center; gap: .3rem;
  padding: .1rem .45rem; border-radius: 999px; font-size: .74rem;
  border: 1px solid var(--border); background: var(--surface-2); color: var(--ink-2); }
.pill.critical { color: var(--critical); }
.pill.warning  { color: var(--serious); }
.pill.good     { color: var(--good-text); }
.pill .dot { width: .5rem; height: .5rem; border-radius: 50%; background: currentColor; }

/* ------------------------------------------------------------ controls -- */

button.btn, .btn {
  font: inherit; font-size: .86rem; padding: .35rem .7rem; cursor: pointer;
  border: 1px solid var(--border); border-radius: 7px;
  background: var(--surface-2); color: var(--ink);
}
button.btn:hover { background: var(--grid); }
button.btn.primary { background: var(--series-1); border-color: transparent; color: #fff; }
button.btn.primary:hover { filter: brightness(1.08); }
button.btn:disabled { opacity: .55; cursor: default; }

input, select {
  font: inherit; font-size: .88rem; padding: .35rem .5rem;
  border: 1px solid var(--border); border-radius: 7px;
  background: var(--surface); color: var(--ink);
}
label.field { display: block; font-size: .8rem; color: var(--ink-2); margin-bottom: .7rem; }
label.field input, label.field select { display: block; width: 100%; margin-top: .2rem; }
/* A tickbox and its words are one line, not a stacked field. Without this the
   box inherits `width: 100%` from the rule above and pushes its own label into
   the next column. */
label.check { display: flex; align-items: center; gap: .5rem; font-size: .86rem;
  color: var(--ink); margin-bottom: .7rem; cursor: pointer; }
label.check input { width: auto; margin: 0; flex: none; }

.rangebar { display: flex; gap: .4rem; align-items: center; flex-wrap: wrap; margin-bottom: 1rem; }

.banner { border-radius: var(--radius); padding: .6rem .85rem; font-size: .87rem;
  margin-bottom: 1rem; border: 1px solid var(--border); background: var(--surface-2); }
.banner.demo    { border-left: 3px solid var(--warning); }
.banner.problem { border-left: 3px solid var(--critical); }

.muted { color: var(--muted); }
.small { font-size: .82rem; }
.caveats { color: var(--muted); font-size: .8rem; margin-top: .8rem; }
.caveats li { margin-bottom: .2rem; }

/* -------------------------------------------------------------- charts -- */

.chart { position: relative; }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart .legend { display: flex; flex-wrap: wrap; gap: .8rem; font-size: .8rem;
  color: var(--ink-2); margin-top: .5rem; }
.chart .legend span.key { display: inline-flex; align-items: center; gap: .35rem; }
.chart .legend i { width: .7rem; height: .7rem; border-radius: 3px; display: inline-block; }

.tooltip {
  position: absolute; pointer-events: none; opacity: 0; transition: opacity .08s;
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
  padding: .4rem .55rem; font-size: .8rem; box-shadow: 0 6px 20px rgba(0,0,0,.14);
  white-space: nowrap; z-index: 5; color: var(--ink);
}
.tooltip .t-row { display: flex; align-items: center; gap: .4rem; justify-content: space-between; }
.tooltip .t-row b { font-variant-numeric: tabular-nums; }
.tooltip i { width: .55rem; height: .55rem; border-radius: 2px; display: inline-block; }

details.tableview { margin-top: .7rem; }
details.tableview summary { cursor: pointer; font-size: .82rem; color: var(--ink-2); }
details.tableview[open] summary { margin-bottom: .5rem; }

/* ---------------------------------------------------------------- login -- */

/* Two panels: the form on the left, what the tool is on the right. The right
   one is the first thing anybody sees on an unfamiliar domain, and a picture of
   the four applications they already use answers "am I in the right place"
   before they read a word. It folds away entirely on a phone, where the only
   thing worth the screen is the form. */
.signin-page {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  background: var(--plane);
}

.signin-panel { display: grid; place-items: center; padding: 2rem 1.5rem; }

.signin-card {
  width: 100%;
  max-width: 23rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.9rem 1.8rem 1.6rem;
  box-shadow: 0 1px 2px rgba(0, 0, 0, .04), 0 12px 32px rgba(0, 0, 0, .06);
}
.signin-card h1 { font-size: 1.6rem; letter-spacing: -0.02em; margin: .8rem 0 .35rem; }
.signin-card .lede { color: var(--ink-2); font-size: .92rem; line-height: 1.5; margin-bottom: 1.4rem; }

.mark-svg { width: 2rem; height: 2rem; display: block; }

form.signin { display: flex; flex-direction: column; gap: .2rem; }
.signin-card label.field { margin-bottom: .8rem; }
.signin-card input { padding: .5rem .6rem; font-size: .95rem; }
button.btn.wide { width: 100%; padding: .55rem; font-size: .95rem; margin-top: .2rem; }

.form-error { color: var(--critical); margin: .6rem 0 0; }

.signin-foot {
  margin: 1.4rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--grid);
  font-size: .76rem;
  letter-spacing: .01em;
}

/* ------------------------------------------------------------ the artwork -- */

.signin-art {
  display: grid;
  place-items: center;
  padding: 2rem;
  background: var(--surface-2);
  border-left: 1px solid var(--border);
}
.art-inner { max-width: 30rem; }
.art-inner .eyebrow {
  font-size: .72rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--muted); margin-bottom: .5rem;
}
.art-inner h2 {
  font-size: clamp(1.35rem, 2.4vw, 1.9rem);
  line-height: 1.2; letter-spacing: -0.02em; font-weight: 650;
  white-space: pre-line; margin-bottom: 1.2rem;
}
.art-inner p.small { margin-top: 1.1rem; line-height: 1.55; max-width: 28rem; }

.converge { width: 100%; height: auto; display: block; overflow: visible; }

/* The lines draw themselves in, once, on arrival. The diagram is a claim about
   four things becoming one, and watching it happen states that better than a
   static picture. Nothing loops — an animation that never settles is a page
   nobody can read. */
.converge .flow {
  stroke-dasharray: 340;
  stroke-dashoffset: 340;
  animation: draw .9s ease-out forwards;
  animation-delay: calc(var(--i) * .12s + .15s);
}
.converge .node { opacity: 0; animation: rise .5s ease-out forwards; animation-delay: calc(var(--i) * .12s); }
.converge .core, .converge .halo { opacity: 0; animation: rise .6s ease-out forwards .75s; }

@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes rise { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  .converge .flow { stroke-dashoffset: 0; animation: none; }
  .converge .node, .converge .core, .converge .halo { opacity: 1; animation: none; }
}

/* On anything narrow the artwork goes; a phone has room for the form and
   nothing else, and a squeezed diagram is worse than no diagram. */
@media (max-width: 860px) {
  .signin-page { grid-template-columns: 1fr; }
  .signin-art { display: none; }
  .signin-panel { padding: 3rem 1.2rem; align-items: start; }
}

@media (max-width: 640px) {
  main { padding: .8rem; }
  .hero { font-size: 2.2rem; }
  /* The header wraps to two rows on a narrow screen, so its height is no
     longer the constant the tab bar's sticky offset was measured against.
     Rather than guess at a taller offset, neither sticks: on a phone the
     screens are read by scrolling, and a bar that covers the first card is
     worse than one that scrolls away. */
  header.top, nav.tabs { position: static; }
}