:root{--us-navy:#0a1f44;--us-blue:#1f3b8c;--us-red:#b22234;--us-white:#ffffff;--input-size:35px}
html,body{height:100%}
body.bg-light{background:radial-gradient(1200px 600px at 100% -50%, rgba(10,31,68,.25), transparent 60%),linear-gradient(180deg, #0b1f44 0%, #122b5e 40%, #163668 100%);color:var(--us-white)}
.otp-hero{position:relative;min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:16px;overflow:hidden}
.flag-stripes,.flag-stars{position:absolute;inset:0;pointer-events:none}
.flag-stripes{background:repeating-linear-gradient(180deg,rgba(178,34,52,.12)0,rgba(178,34,52,.12)12px,transparent 12px,transparent 24px);mix-blend-mode:screen}
.flag-stars{background-image:radial-gradient(circle at 10% 15%,rgba(255,255,255,.15)1.5px,transparent 2px),radial-gradient(circle at 30% 35%,rgba(255,255,255,.12)1.5px,transparent 2px),radial-gradient(circle at 50% 20%,rgba(255,255,255,.10)1.5px,transparent 2px),radial-gradient(circle at 70% 30%,rgba(255,255,255,.12)1.5px,transparent 2px),radial-gradient(circle at 85% 18%,rgba(255,255,255,.15)1.5px,transparent 2px);background-size:300px 300px;opacity:.8}
.otp-card{width:min(560px,92vw);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);box-shadow:0 20px 60px rgba(0,0,0,.35),inset 0 1px 0 rgba(255,255,255,.08);backdrop-filter:blur(10px);border-radius:20px;overflow:hidden}
.otp-card-header{background:linear-gradient(135deg,var(--us-blue),#0e2552);padding:18px 20px;border-bottom:1px solid rgba(255,255,255,.14);display:flex;align-items:center;gap:12px}
.badge-flag{width:40px;height:40px;border-radius:12px;background:conic-gradient(from 0deg at 50% 50%,var(--us-red),var(--us-red)33%,var(--us-white)33%,var(--us-white)66%,var(--us-blue)66%,var(--us-blue));box-shadow:inset 0 0 0 2px rgba(255,255,255,.25)}
.otp-title{margin:0;font-weight:700;letter-spacing:.3px}.otp-subtitle{margin:0;color:#cfd8ff;font-size:.95rem}
.otp-card-body{padding:18px;background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,0))}
.form-label{color:#e8eeff;font-weight:600}.btn{border-radius:12px;padding:.7rem 1rem;font-weight:700;letter-spacing:.2px}
.btn-success{background:linear-gradient(135deg,var(--us-red),#8e1a29);border-color:transparent}.btn-success:hover{filter:brightness(1.05)}
.site-meta{display:flex;align-items:center;gap:8px;color:#e1e8ff;font-size:.9rem;opacity:.9}
.site-meta .sep{opacity:.6}
.label-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:.5rem}
.info-chip{display:inline-flex;align-items:center;gap:.5rem;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#e8eeff;padding:.35rem .6rem;border-radius:999px;font-size:.85rem}
.info-chip .dot{width:6px;height:6px;border-radius:50%;background:var(--us-red);box-shadow:0 0 0 3px rgba(178,34,52,.25)}
.otp-area{display:flex;flex-direction:column;align-items:stretch}
.otp-grid{display:flex;justify-content:center;gap:.6rem;margin-top:.15rem}
.otp-digit{width:var(--input-size);min-width:60px;max-width:var(--input-size);height:64px;text-align:center;font-size:1.25rem;font-weight:800;letter-spacing:.02em;color:var(--us-white);background:linear-gradient(180deg,rgba(255,255,255,.10),rgba(255,255,255,.04));border:2px solid rgba(255,255,255,.35);border-radius:10px;outline:none;transition:transform .12s ease,box-shadow .12s ease,border-color .12s ease;box-shadow:0 8px 24px rgba(0,0,0,.25), inset 0 1px 0 rgba(255,255,255,.08)}
.otp-digit:focus{border-color:#7aa2ff;box-shadow:0 0 0 .2rem rgba(122,162,255,.25), inset 0 1px 0 rgba(255,255,255,.12);transform:translateY(-2px)}
.otp-digit:nth-child(1){border-color:#1f3b8c}.otp-digit:nth-child(2){border-color:#b22234}.otp-digit:nth-child(3){border-color:#1f3b8c}.otp-digit:nth-child(4){border-color:#b22234}
.footer-brand{display:flex;align-items:center;justify-content:center;gap:.5rem;opacity:.9;color:#dbe6ff;padding:8px 0 18px;font-size:.9rem}
.footer-brand .dot{width:7px;height:7px;border-radius:50%;background:var(--us-red);box-shadow:0 0 0 3px rgba(178,34,52,.25)}