/* Nexum PayNow v1.0.0 */
:root {
    --pn-bg: #0e0e13; --pn-card: #16161d; --pn-border: #262630;
    --pn-text: #ececf0; --pn-muted: #9a9aa8; --pn-accent: #6c5ce7;
    --pn-danger: #ef4444; --pn-ok: #22c55e;
}
body.pn-standalone { margin: 0; background: var(--pn-bg); }
.pn-app { min-height: 100vh; background: var(--pn-bg); color: var(--pn-text); font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; display: flex; flex-direction: column; }
.pn-muted { color: var(--pn-muted); font-size: 13.5px; line-height: 1.55; }

.pn-header { padding: 20px 24px; border-bottom: 1px solid var(--pn-border); }
.pn-logo { font-weight: 800; font-size: 15px; letter-spacing: .1em; text-transform: uppercase; }
.pn-logo span { color: var(--pn-accent); }

.pn-main { flex: 1; display: flex; align-items: center; justify-content: center; padding: 40px 20px; }
.pn-card { background: var(--pn-card); border: 1px solid var(--pn-border); border-radius: 18px; padding: 34px 32px; max-width: 440px; width: 100%; }
.pn-card h1 { font-size: 22px; margin: 0 0 8px; }

.pn-step label { display: block; font-size: 12px; color: var(--pn-muted); margin: 16px 0 6px; text-transform: uppercase; letter-spacing: .04em; font-weight: 600; }
.pn-step input, .pn-step textarea {
    width: 100%; background: var(--pn-bg); border: 1px solid var(--pn-border); color: var(--pn-text);
    border-radius: 9px; padding: 11px 13px; font-size: 14.5px; box-sizing: border-box; font-family: inherit;
}
.pn-step input:focus, .pn-step textarea:focus { outline: none; border-color: var(--pn-accent); }
.pn-step textarea { resize: vertical; }

.pn-btn { background: var(--pn-bg); border: 1px solid var(--pn-border); color: var(--pn-text); border-radius: 9px; padding: 12px 18px; font-size: 14px; font-weight: 600; cursor: pointer; }
.pn-btn:hover { border-color: var(--pn-accent); }
.pn-btn-primary { background: var(--pn-accent); border-color: var(--pn-accent); color: #fff; }
.pn-btn-primary:hover { opacity: .9; border-color: var(--pn-accent); }
.pn-btn-block { width: 100%; margin-top: 20px; }
.pn-btn-ghost { background: none; margin-top: 16px; }
.pn-btn[disabled] { opacity: .55; cursor: default; }

.pn-back { background: none; border: none; color: var(--pn-muted); font-size: 13px; cursor: pointer; padding: 0; margin-bottom: 16px; }
.pn-back:hover { color: var(--pn-text); }

.pn-msg { border-radius: 9px; padding: 10px 14px; font-size: 13px; margin: 14px 0; }
.pn-msg-err { background: rgba(239,68,68,.1); border: 1px solid rgba(239,68,68,.3); color: #f87171; }
.pn-msg-ok { background: rgba(34,197,94,.1); border: 1px solid rgba(34,197,94,.3); color: #4ade80; }

.pn-mini-miranda { font-size: 11px; color: var(--pn-muted); line-height: 1.6; margin-top: 22px; border-top: 1px solid var(--pn-border); padding-top: 16px; }

/* Account list */
.pn-account { background: var(--pn-bg); border: 1px solid var(--pn-border); border-radius: 12px; padding: 16px 18px; margin: 12px 0; cursor: pointer; transition: border-color .15s; }
.pn-account:hover { border-color: var(--pn-accent); }
.pn-account-creditor { font-weight: 700; font-size: 14.5px; }
.pn-account-status { display: inline-block; font-size: 11px; font-weight: 600; padding: 2px 9px; border-radius: 20px; background: rgba(108,92,231,.15); color: #a78bfa; margin-left: 8px; }
.pn-account-row { display: flex; justify-content: space-between; align-items: baseline; margin-top: 8px; }
.pn-account-bal { font-size: 20px; font-weight: 700; }
.pn-account-bal-label { font-size: 11px; color: var(--pn-muted); text-transform: uppercase; }

.pn-account-summary { background: var(--pn-bg); border: 1px solid var(--pn-border); border-radius: 12px; padding: 16px 18px; margin: 16px 0 20px; }

.pn-action-choices { display: flex; flex-direction: column; gap: 10px; }
.pn-choice { display: flex; align-items: center; gap: 14px; text-align: left; background: var(--pn-bg); border: 1px solid var(--pn-border); border-radius: 12px; padding: 16px 18px; cursor: pointer; color: var(--pn-text); }
.pn-choice:hover { border-color: var(--pn-accent); }
.pn-choice-icon { font-size: 26px; }
.pn-choice strong { display: block; font-size: 14.5px; }
.pn-choice span { display: block; font-size: 12.5px; color: var(--pn-muted); margin-top: 2px; }

.pn-step#pn-step-done { text-align: center; }
.pn-done-icon { width: 56px; height: 56px; border-radius: 50%; background: rgba(34,197,94,.15); color: var(--pn-ok); font-size: 28px; display: flex; align-items: center; justify-content: center; margin: 0 auto 18px; }

.pn-footer { padding: 16px 24px 26px; text-align: center; }
.pn-footer p { font-size: 11px; color: var(--pn-muted); max-width: 560px; margin: 0 auto; line-height: 1.6; }

@media (max-width: 500px) {
    .pn-card { padding: 26px 22px; border-radius: 14px; }
}