/* ══════════════════════════════════════════════════════════════════════════
   SIGN IN — the first screen anyone sees.

   It uses the §4.1 tokens and nothing else, so it inherits both themes and the density ramp
   for free. Its own classes are `s-` prefixed: console.css and admin.css are not loaded here,
   and any shared class name would eventually collide with one of them.

   The design brief is restraint. A sign-in page has exactly one job, and every element that
   is not the button, the product name, or an error competes with it.
   ══════════════════════════════════════════════════════════════════════════ */

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;display:grid;place-items:center;
  padding:calc(var(--s6) + env(safe-area-inset-top,0px)) var(--s4)
          calc(var(--s6) + env(safe-area-inset-bottom,0px));
  background:var(--bg);color:var(--tx-1);
  font-family:var(--f-ui);font-size:var(--t-body);line-height:1.5;
  -webkit-font-smoothing:antialiased;
}

/* A single wash of the accent, very low opacity, so the page has depth without a "hero". */
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(60rem 40rem at 50% -10%, var(--accent-soft), transparent 70%),
    radial-gradient(40rem 30rem at 90% 110%, var(--accent-soft), transparent 70%);
  opacity:.7;
}
/* Kampala Mono: barkcloth fibres around the edges of the page, fading out well before the card,
   so the form itself always sits on plain paper. A mask over the theme's ink, at a whisper. */
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:var(--weave-ink);opacity:var(--weave-alpha);
  -webkit-mask-image:var(--weave),radial-gradient(ellipse 60% 70% at 50% 46%,transparent 40%,#000 100%);
  -webkit-mask-composite:source-in;
  mask-image:var(--weave),radial-gradient(ellipse 60% 70% at 50% 46%,transparent 40%,#000 100%);
  mask-composite:intersect;
}

.s-wrap{position:relative;z-index:1;width:100%;max-width:26rem;display:grid;gap:var(--s4)}

.s-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:var(--s6);display:grid;gap:var(--s5);
  box-shadow:0 1px 2px rgba(0,0,0,.04), 0 18px 48px -32px rgba(0,0,0,.45);
}
:root[data-theme="dark"] .s-card{box-shadow:0 1px 2px rgba(0,0,0,.4), 0 20px 56px -34px rgba(0,0,0,.8)}

/* ── brand ── */
.s-brand{display:flex;align-items:center;gap:var(--s3)}
.s-mark{
  flex:none;width:34px;height:34px;border-radius:9px;display:grid;place-items:center;overflow:hidden;
  background:var(--accent);color:var(--on-accent);
}
/* The mark: an I whose stem is two woven strands (inline SVG, follows the theme). */
.s-glyph{width:100%;height:100%;display:block}
.s-glyph .gw{fill:none;stroke:var(--on-accent);stroke-width:1.9;stroke-linecap:round}
.s-glyph .gu{fill:none;stroke:var(--accent);stroke-width:3.9}
.s-glyph .gb{fill:var(--on-accent)}
.s-brand h1{margin:0;font-size:var(--t-h2);font-weight:600;letter-spacing:-.015em}
.s-tag{margin:2px 0 0;color:var(--tx-2);font-size:var(--t-small)}

/* ── the button ──
   Google's own guidance: their mark, unmodified, on a neutral surface. It is a brand asset,
   not a decoration, so it does not get tinted to match the theme. */
.s-actions{display:grid;gap:var(--s3)}
.s-google{
  display:flex;align-items:center;justify-content:center;gap:var(--s3);
  min-height:46px;padding:0 var(--s4);border-radius:var(--r-md);
  border:1px solid var(--line-hi);background:var(--surface-2);
  color:var(--tx-1);font-size:var(--t-body);font-weight:500;text-decoration:none;
  transition:background var(--d-fast) var(--e-out), border-color var(--d-fast) var(--e-out),
             transform var(--d-fast) var(--e-out);
}
.s-google:hover{background:var(--surface-3);border-color:var(--tx-3)}
.s-google:active{transform:translateY(1px)}
.s-google:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.s-google svg{flex:none}
.s-google[aria-disabled="true"]{opacity:.5;pointer-events:none}

.s-unavailable{
  display:grid;gap:4px;padding:var(--s3) var(--s4);
  border:1px dashed var(--line-hi);border-radius:var(--r-md);
  background:var(--surface-2);color:var(--tx-2);font-size:var(--t-small);line-height:1.5;
}
.s-unavailable code{font-family:var(--f-mono);font-size:var(--t-micro);color:var(--tx-1)}

.s-error{
  padding:var(--s3) var(--s4);border-radius:var(--r-md);
  border:1px solid var(--st-failed);background:var(--surface-2);
  color:var(--tx-1);font-size:var(--t-small);line-height:1.5;
}

.s-note{margin:0;color:var(--tx-2);font-size:var(--t-small);line-height:1.55}
.s-note b{color:var(--tx-1);font-weight:500}

/* ── steps, forms, the code ── */
.s-step{display:grid;gap:var(--s4)}
.s-h2{margin:0;font-size:var(--t-h2);font-weight:600;letter-spacing:-.015em}
.s-divider{display:flex;align-items:center;gap:var(--s3);color:var(--tx-3);font-size:var(--t-micro);
  text-transform:uppercase;letter-spacing:.06em}
.s-divider::before,.s-divider::after{content:"";flex:1;height:1px;background:var(--line)}
.s-form{display:grid;gap:var(--s2)}
.s-label{font-size:var(--t-small);font-weight:500;color:var(--tx-2)}
.s-input{
  width:100%;min-height:44px;padding:0 var(--s3);border-radius:var(--r-md);
  border:1px solid var(--line-hi);background:var(--bg);color:var(--tx-1);
  font:inherit;font-size:var(--t-body);outline:none;
  transition:border-color var(--d-fast) var(--e-out),box-shadow var(--d-fast) var(--e-out);
}
.s-input::placeholder{color:var(--tx-3)}
.s-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.s-code{
  font-family:var(--f-mono);font-size:1.5rem;letter-spacing:.42em;text-align:center;
  min-height:54px;font-variant-numeric:tabular-nums;
}
.s-code::placeholder{letter-spacing:.42em}
.s-primary{
  display:flex;align-items:center;justify-content:center;min-height:44px;margin-top:var(--s1);
  padding:0 var(--s4);border-radius:var(--r-md);border:1px solid var(--accent);
  background:var(--accent);color:var(--on-accent);font:inherit;font-size:var(--t-body);font-weight:500;
  cursor:pointer;transition:filter var(--d-fast) var(--e-out),transform var(--d-fast) var(--e-out);
}
.s-primary:hover{opacity:.84}
.s-primary:active{transform:translateY(1px)}
.s-primary:disabled{opacity:.6;cursor:progress}
.s-primary[data-variant="quiet"]{background:var(--surface-2);border-color:var(--line-hi);color:var(--tx-1)}
.s-row{display:flex;align-items:center;gap:var(--s2);flex-wrap:wrap;font-size:var(--t-small)}
.s-sep{color:var(--tx-3)}
.s-link{background:none;border:0;padding:0;color:var(--accent);font:inherit;font-size:var(--t-small);
  cursor:pointer;text-decoration:underline;text-underline-offset:3px;text-decoration-color:transparent;
  transition:text-decoration-color var(--d-fast) var(--e-out)}
.s-link:hover{text-decoration-color:currentColor}
.s-link:disabled{color:var(--tx-3);cursor:default;text-decoration:none}
.s-warn{
  padding:var(--s3) var(--s4);border-radius:var(--r-md);
  border:1px solid var(--st-review);background:var(--surface-2);
  color:var(--tx-1);font-size:var(--t-small);line-height:1.55;
}
.s-warn b{font-weight:600}
.s-fallback{font-size:var(--t-small);color:var(--tx-3)}
.s-fallback summary{cursor:pointer;list-style:none;color:var(--tx-3)}
.s-fallback summary::-webkit-details-marker{display:none}
.s-fallback summary:hover{color:var(--tx-1)}
.s-fallback[open] summary{margin-bottom:var(--s3)}
.s-foot a{color:var(--accent);text-decoration:none}
.s-foot a:hover{text-decoration:underline}

.s-foot{
  display:flex;align-items:center;justify-content:space-between;gap:var(--s3);
  padding-top:var(--s4);border-top:1px solid var(--line);
  color:var(--tx-3);font-size:var(--t-micro);min-height:32px;
}
.s-theme{
  flex:none;width:30px;height:30px;display:grid;place-items:center;
  border-radius:var(--r-md);border:1px solid transparent;background:none;
  color:var(--tx-2);cursor:pointer;
}
.s-theme:hover{background:var(--surface-3);color:var(--tx-1)}
.s-theme:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
.s-theme svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.7;
  stroke-linecap:round;stroke-linejoin:round}

.s-legal{margin:0;text-align:center;color:var(--tx-3);font-size:var(--t-micro);line-height:1.6}

[hidden]{display:none!important}

@media(max-width:420px){
  .s-card{padding:var(--s5)}
  .s-brand h1{font-size:var(--t-h3)}
}
@media(prefers-reduced-motion:reduce){
  .s-google{transition:none}
}