:root { --bg: #eef2f3; --surface: #fff; --ink: #15232a; --muted: #5a6a72; --line: #d9e1e4; --accent: #0d6d73; --accent-ink: #fff; --bad: #bb3a33; --bad-soft: #f9e2df; color-scheme: light; }
@media (prefers-color-scheme: dark) { :root { --bg: #0e1417; --surface: #162026; --ink: #e2eaed; --muted: #92a3ab; --line: #26343b; --accent: #4fb6bb; --accent-ink: #072a2c; --bad: #ef6b63; --bad-soft: #3d1c1a; color-scheme: dark; } }
* { box-sizing: border-box; }
html, body { min-height: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.5 "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif; display: grid; place-items: center; padding: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left)); }
.login { width: min(400px, 100%); }
.brand { display: flex; gap: 12px; align-items: center; margin-bottom: 20px; }
.brand h1 { margin: 0; font-size: 22px; letter-spacing: -.01em; }
.brand p { margin: 0; color: var(--muted); font-size: 13px; }
form, .form { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 22px; display: grid; gap: 8px; box-shadow: 0 6px 24px rgba(0,0,0,.06); }
label { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); margin-top: 6px; }
input { font: inherit; color: inherit; background: var(--bg); border: 1px solid var(--line); border-radius: 9px; padding: 10px 12px; }
input:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button { margin-top: 12px; font: inherit; font-weight: 600; border: 0; border-radius: 9px; padding: 11px; background: var(--accent); color: var(--accent-ink); cursor: pointer; }
.err { margin: 0 0 4px; padding: 10px 12px; border-radius: 9px; background: var(--bad-soft); color: var(--bad); font-size: 14px; }
.note { margin: 6px 0 0; font-size: 12.5px; color: var(--muted); }
.brand.logo-only { justify-content: center; margin-bottom: 8px; }
.brand.logo-only img { max-width: 200px; max-height: 140px; width: auto; height: auto; }
.login-title { text-align: center; margin: 0; font-size: 22px; letter-spacing: -.01em; }
.sub { text-align: center; color: var(--muted); font-size: 13px; margin: 2px 0 18px; }
.info { margin: 0 0 4px; padding: 10px 12px; border-radius: 9px; background: var(--bg); border: 1px solid var(--line); font-size: 14px; }
.login.wide { width: min(460px, 100%); }
.step-title { margin: 0; font-size: 18px; }
.step-note { margin: 0 0 4px; font-size: 14px; color: var(--ink); }
.steps { margin: 4px 0 0; padding-left: 20px; font-size: 14px; display: grid; gap: 4px; }
.qr { width: 220px; height: 220px; margin: 6px auto; background: #fff; border-radius: 10px; padding: 4px; }
.qr svg { width: 100%; height: 100%; display: block; }
.center { text-align: center; }
.key { font-family: "IBM Plex Mono", ui-monospace, monospace; font-size: 15px; letter-spacing: .06em; text-align: center; background: var(--bg); border: 1px dashed var(--line); border-radius: 8px; padding: 8px; margin: 0; word-break: break-all; user-select: all; }
input.code { font-family: "IBM Plex Mono", ui-monospace, monospace; font-size: 22px; letter-spacing: .3em; text-align: center; }
.codes { list-style: none; padding: 0; margin: 4px 0; display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.codes li { font-family: "IBM Plex Mono", ui-monospace, monospace; font-size: 15px; text-align: center; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 7px; user-select: all; }
.check { display: flex; gap: 8px; align-items: center; text-transform: none; letter-spacing: 0; font-size: 14px; color: var(--ink); font-weight: 500; cursor: pointer; }
.check input { width: 18px; height: 18px; accent-color: var(--accent); }
form.plain { background: none; border: 0; box-shadow: none; padding: 6px 0 0; }
button.link { background: none; color: var(--muted); font-weight: 500; text-decoration: underline; margin: 0; padding: 4px; }