/* TeslaWatch — one stylesheet, no webfonts, no JS, no CDN.
   Simple on purpose: high contrast, generous spacing, one accent, one column. */

:root {
  --ground:  #FFFFFF;
  --raise:   #F6F7F9;
  --line:    #E3E7EB;
  --ink:     #16191D;
  --ink-2:   #565E68;
  --ink-3:   #838B95;
  --accent:  #0B6E7F;
  --accent-bg: #E8F4F6;
  --good:    #1C7A4F;
  --good-bg: #E6F3EC;
  --warn-bg: #FBF2E0;
  --warn:    #8A6212;
  --r: 12px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ground: #0F1216; --raise: #171C21; --line: #262D34;
    --ink: #EDF1F5; --ink-2: #A5AEB8; --ink-3: #737C86;
    --accent: #4FC9DE; --accent-bg: #102C33;
    --good: #55C88C; --good-bg: #10281C;
    --warn-bg: #2E2510; --warn: #E0B85C;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 17px/1.7 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

/* ---------- header ---------- */
.top {
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--ground) 92%, transparent);
  backdrop-filter: saturate(1.4) blur(8px);
}
.top .bar {
  max-width: 46rem; margin: 0 auto; padding: .85rem 1.25rem;
  display: flex; align-items: center; gap: .9rem; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: .55rem; text-decoration: none; color: var(--ink); }
.brand .dot {
  width: 1.6rem; height: 1.6rem; border-radius: 7px; flex: none;
  background: var(--accent); opacity: .9;
}
.brand b { font-weight: 660; letter-spacing: -.01em; font-size: 1.02rem; }
.top nav { margin-left: auto; display: flex; gap: .25rem; flex-wrap: wrap; }
.top nav a {
  color: var(--ink-2); text-decoration: none; font-size: .92rem;
  padding: .3rem .55rem; border-radius: 7px;
}
.top nav a:hover { background: var(--raise); color: var(--ink); }
.top nav a[aria-current="page"] { color: var(--accent); background: var(--accent-bg); }

/* ---------- page ---------- */
main { max-width: 46rem; margin: 0 auto; padding: 2.75rem 1.25rem 4rem; }
h1 {
  font-size: clamp(1.85rem, 5vw, 2.5rem); font-weight: 700;
  letter-spacing: -.028em; line-height: 1.15; margin: 0 0 .7rem; text-wrap: balance;
}
.sub { font-size: 1.12rem; color: var(--ink-2); margin: 0 0 1.5rem; max-width: 34em; }
.stamp { color: var(--ink-3); font-size: .88rem; margin: -.4rem 0 1.8rem; }
h2 {
  font-size: 1.3rem; font-weight: 660; letter-spacing: -.016em;
  margin: 2.6rem 0 .6rem; text-wrap: balance;
}
h3 { font-size: 1.04rem; font-weight: 640; margin: 1.7rem 0 .35rem; }
p { color: var(--ink-2); margin: 0 0 1rem; }
strong { color: var(--ink); font-weight: 620; }
ul, ol { color: var(--ink-2); padding-left: 1.3rem; margin: 0 0 1.15rem; }
li { margin-bottom: .5rem; }
li::marker { color: var(--ink-3); }
a { color: var(--accent); text-underline-offset: 3px; }
a:focus-visible, .top nav a:focus-visible, .brand:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px;
}
hr { border: none; border-top: 1px solid var(--line); margin: 2.5rem 0; }
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .89em;
  background: var(--raise); border: 1px solid var(--line);
  padding: .12em .4em; border-radius: 5px; word-break: break-word;
}

/* ---------- blocks ---------- */
.card {
  background: var(--raise); border: 1px solid var(--line);
  border-radius: var(--r); padding: 1.1rem 1.25rem; margin: 1.5rem 0;
}
.card > :last-child { margin-bottom: 0; }
.card h3:first-child, .card p:first-child { margin-top: 0; }
.card.accent { background: var(--accent-bg); border-color: transparent; }
.card.good   { background: var(--good-bg);   border-color: transparent; }
.card.warn   { background: var(--warn-bg);   border-color: transparent; }
.card.accent strong { color: var(--accent); }
.card.good strong   { color: var(--good); }
.card.warn strong   { color: var(--warn); }

.keyval { display: grid; grid-template-columns: 1fr; gap: 0; margin: 1.4rem 0; }
.keyval > div {
  display: grid; grid-template-columns: 11rem 1fr; gap: .3rem 1.1rem;
  padding: .75rem 0; border-bottom: 1px solid var(--line); align-items: baseline;
}
.keyval > div:last-child { border-bottom: none; }
.keyval dt, .keyval .k { font-weight: 620; color: var(--ink); font-size: .96rem; }
.keyval dd, .keyval .v { margin: 0; color: var(--ink-2); font-size: .96rem; }
@media (max-width: 34rem) {
  .keyval > div { grid-template-columns: 1fr; gap: .1rem; }
}

.tblwrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r); margin: 1.4rem 0; }
table { border-collapse: collapse; width: 100%; min-width: 26rem; }
th, td { text-align: left; padding: .7rem .9rem; font-size: .95rem; border-bottom: 1px solid var(--line); }
th { font-size: .8rem; letter-spacing: .02em; color: var(--ink-3); font-weight: 660; background: var(--raise); }
td { color: var(--ink-2); }
tr:last-child td { border-bottom: none; }

.btn {
  display: inline-block; background: var(--accent); color: var(--ground);
  font-weight: 620; text-decoration: none; padding: .65rem 1.25rem;
  border-radius: 9px; margin: .25rem .4rem .25rem 0;
}
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }

.pills { display: flex; flex-wrap: wrap; gap: .4rem; margin: 1.2rem 0; }
.pill {
  font-size: .86rem; background: var(--raise); border: 1px solid var(--line);
  color: var(--ink-2); padding: .3rem .7rem; border-radius: 99px;
}

/* ---------- footer ---------- */
.foot { border-top: 1px solid var(--line); margin-top: 3.5rem; }
.foot .inner { max-width: 46rem; margin: 0 auto; padding: 2rem 1.25rem 3rem; }
.foot nav { display: flex; flex-wrap: wrap; gap: .35rem 1.1rem; margin-bottom: 1rem; }
.foot nav a { color: var(--ink-2); text-decoration: none; font-size: .93rem; }
.foot nav a:hover { color: var(--accent); }
.foot p { font-size: .87rem; color: var(--ink-3); margin: 0 0 .5rem; }

@media print { .top, .foot nav { display: none; } body { font-size: 11pt; } }