/* Sign-up / sign-in forms (auth.js), used on the account page and in the landing page's pop-up. Every class is
   prefixed ka- so it cannot collide with either page's own styles. */
.ka-auth {
  --ka-surface-2: #131620; --ka-surface-3: #1a1e2b; --ka-line: rgba(255, 255, 255, .07); --ka-line-strong: rgba(255, 255, 255, .13);
  --ka-text: #eceef5; --ka-text-2: #b4bacd; --ka-muted: #7d859b; --ka-accent: #4f8eff; --ka-accent-2: #7cb3ff;
  --ka-bad: #f2555a; --ka-good: #3dd68c;
  color: var(--ka-text); text-align: left; font-size: 15px; line-height: 1.45;
}
.ka-auth *, .ka-overlay * { box-sizing: border-box; }
.ka-hidden { display: none !important; }
.ka-tabs { display: flex; gap: 4px; background: #0e1017; border: 1px solid var(--ka-line); border-radius: 12px; padding: 4px; margin-bottom: 18px; }
.ka-tab { flex: 1; background: none; border: none; color: var(--ka-muted); padding: 9px 10px; border-radius: 9px; font: inherit; font-size: 14px; font-weight: 650; cursor: pointer; }
.ka-tab.active { background: var(--ka-surface-3); color: var(--ka-text); }
.ka-note { background: rgba(79, 142, 255, .14); border: 1px solid rgba(79, 142, 255, .3); border-radius: 10px; padding: 10px 12px; font-size: 13px; margin: 0 0 16px; }
.ka-title { font-size: 20px; margin: 0 0 4px; color: var(--ka-text); }
.ka-sub { color: var(--ka-muted); font-size: 13px; margin: 0 0 18px; line-height: 1.5; }
.ka-field { margin-bottom: 14px; }
.ka-field label { display: block; font-size: 13px; font-weight: 600; color: var(--ka-text-2); margin-bottom: 6px; }
.ka-field input {
  width: 100%; background: var(--ka-surface-3); border: 1px solid var(--ka-line-strong); border-radius: 10px;
  padding: 11px 12px; color: var(--ka-text); font: inherit; font-size: 15px;
}
.ka-field input:focus { outline: 2px solid var(--ka-accent-2); outline-offset: 1px; }
.ka-field input[inputmode=numeric] { font-family: ui-monospace, monospace; letter-spacing: .25em; font-size: 18px; }
.ka-pw { position: relative; }
.ka-pw input { padding-right: 70px; }
.ka-toggle { position: absolute; right: 6px; top: 50%; transform: translateY(-50%); background: none; border: none; color: var(--ka-accent-2); font: inherit; font-size: 12.5px; cursor: pointer; padding: 6px 8px; }
.ka-hint { display: block; font-size: 12px; color: var(--ka-muted); margin-top: 6px; }
.ka-hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.ka-btn {
  display: block; width: 100%; padding: 13px; border-radius: 10px; border: 1px solid var(--ka-line-strong); background: var(--ka-surface-3);
  color: var(--ka-text); font: inherit; font-size: 15px; font-weight: 650; cursor: pointer; text-align: center;
}
.ka-btn.primary { border: none; background: var(--ka-accent); color: #fff; }
.ka-btn:disabled { opacity: .5; cursor: not-allowed; }
.ka-link { background: none; border: none; color: var(--ka-accent-2); font: inherit; font-size: 12.5px; cursor: pointer; padding: 6px 0 0; }
.ka-link:disabled { color: var(--ka-muted); cursor: default; }
.ka-link.center { display: block; margin: 14px auto 0; }
.ka-error { color: var(--ka-bad); font-size: 13px; margin-top: 12px; display: none; }
.ka-error.show { display: block; }

/* the pop-up */
.ka-lock { overflow: hidden; }
.ka-overlay {
  position: fixed; inset: 0; z-index: 10000; background: rgba(5, 6, 10, .72); display: flex; align-items: center; justify-content: center;
  padding: 16px; overflow-y: auto; -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
}
.ka-modal {
  position: relative; width: 100%; max-width: 440px; max-height: calc(100vh - 32px); overflow-y: auto; margin: auto;
  background: #131620; border: 1px solid rgba(255, 255, 255, .1); border-radius: 18px; padding: 28px;
}
.ka-closebtn { margin-top: 10px; background: transparent; color: var(--ka-text-2); }
.ka-closebtn:hover { color: var(--ka-text); border-color: rgba(255, 255, 255, .25); }
.ka-modal .ka-tabs { margin-top: 0; }
@media (max-width: 480px) { .ka-modal { padding: 22px 18px; } }