/* Public registration pages: office_register.php, head_register.php and the sub-office form */
:root{--bg:#f4f7fb;--ink:#0f172a;--muted:#5b6b82;--line:#e2e8f0;--card:#ffffff;--blue:#2563eb;--blue-soft:#eff6ff;--green:#059669;--green-soft:#ecfdf5;--red:#dc2626;--red-soft:#fef2f2}
@media (prefers-color-scheme:dark){:root{--bg:#0b1220;--ink:#e5edf7;--muted:#9fb0c7;--line:#243247;--card:#111a2b;--blue-soft:#12233f;--green-soft:#0f2a24;--red-soft:#2a1416}}
*{box-sizing:border-box}
body{margin:0;font-family:'Outfit',system-ui,sans-serif;background:radial-gradient(1200px 500px at 50% -10%,var(--blue-soft),transparent),var(--bg);color:var(--ink);min-height:100vh}
a{color:var(--blue)}
.top{border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--card) 85%,transparent);backdrop-filter:blur(8px)}
.top-in{max-width:1080px;margin:0 auto;padding:14px 20px;display:flex;justify-content:space-between;align-items:center}
.brand{font-weight:700;color:var(--ink);text-decoration:none}
.login-link{color:var(--blue);text-decoration:none;font-weight:600;font-size:14px}
.wrap{max-width:1080px;margin:0 auto;padding:44px 20px 60px}
.wrap.narrow{max-width:860px}
.hero{text-align:center;margin-bottom:30px}
.hero h1{font-size:clamp(28px,4vw,40px);margin:0 0 10px;letter-spacing:-.02em}
.hero p{max-width:640px;margin:0 auto;color:var(--muted);font-size:16px;line-height:1.6}
.notice{max-width:760px;margin:0 auto 24px;padding:14px 18px;border-radius:12px;background:var(--blue-soft);border:1px solid var(--blue);color:var(--ink);font-weight:500}

/* Choice cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px;align-items:stretch}
.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:28px;display:flex;flex-direction:column;box-shadow:0 10px 30px rgba(15,23,42,.06);transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-3px);box-shadow:0 16px 40px rgba(15,23,42,.1)}
.card-district{border-top:4px solid var(--blue)}
.card-sub{border-top:4px solid var(--green)}
.icon{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.card-district .icon{background:var(--blue-soft);color:var(--blue)}
.card-sub .icon{background:var(--green-soft);color:var(--green)}
.card h2{margin:0 0 6px;font-size:22px}
.lead{margin:0 0 14px;color:var(--muted);font-size:15px;line-height:1.5}
.card ul{margin:0 0 22px;padding-left:18px;color:var(--ink);font-size:14.5px;line-height:1.6}
.card li{margin-bottom:4px}
.card-action{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.card-action .btn{display:block;width:100%}
.foot{text-align:center;margin-top:30px;color:var(--muted);font-size:15px}
.foot a{font-weight:600;text-decoration:none}

/* Form pages */
.form-card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:32px;box-shadow:0 10px 30px rgba(15,23,42,.06)}
.hint-box{padding:16px 18px;border-radius:14px;background:var(--blue-soft);border:1px solid color-mix(in srgb,var(--blue) 35%,transparent);line-height:1.6;margin-bottom:22px;font-size:15px}
.hint-box strong{display:block;margin-bottom:2px}
.reg .form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px 20px}
.reg .form-group{display:flex;flex-direction:column;gap:6px}
.reg label{font-size:13px;font-weight:600;color:var(--muted)}
.reg .form-control,.field{width:100%;padding:13px 14px;font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:12px}
.reg select.form-control{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:40px}
.reg .form-control:focus,.field:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px color-mix(in srgb,var(--blue) 18%,transparent)}
.reg small{color:var(--muted);font-size:12.5px;line-height:1.5}
.reg .error{color:var(--red);font-size:13px;font-weight:500}
.reg .alert{padding:14px 18px;border-radius:12px;margin-bottom:18px;font-weight:500;line-height:1.5}
.reg .alert-success{background:var(--green-soft);border:1px solid var(--green);color:var(--ink)}
.reg .alert-danger{background:var(--red-soft);border:1px solid var(--red);color:var(--ink)}
.reg .alert-info{background:var(--blue-soft);border:1px solid var(--blue);color:var(--ink)}
.reg .actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

/* Buttons */
.btn{display:inline-block;padding:14px 22px;border:0;border-radius:12px;font:inherit;font-weight:600;text-align:center;text-decoration:none;cursor:pointer;color:#fff;background:var(--blue);transition:filter .15s,transform .15s}
.btn:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-primary{background:var(--blue)}
.btn-secondary{background:var(--green)}
.btn.light{background:var(--card);color:var(--ink);border:1px solid var(--line)}
/* Login page */
.wrap.auth{max-width:480px}
.auth .hero{margin-bottom:20px}
.auth-card{padding:28px}
.steps{list-style:none;display:flex;justify-content:center;gap:10px;margin:0 0 18px;padding:0;font-size:14px;color:var(--muted)}
.steps li{display:flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;border:1px solid var(--line);background:var(--card)}
.steps li span{width:22px;height:22px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;background:var(--line);color:var(--muted)}
.steps li.is-current{color:var(--ink);border-color:var(--blue);font-weight:600}
.steps li.is-current span{background:var(--blue);color:#fff}
.steps li.is-done span{background:var(--green);color:#fff}
.pw-wrap{position:relative}
.pw-wrap .form-control{padding-right:70px}
.pw-toggle{position:absolute;right:8px;top:50%;transform:translateY(-50%);border:0;background:transparent;color:var(--blue);font:inherit;font-size:13px;font-weight:600;cursor:pointer;padding:6px 10px;border-radius:8px}
.pw-toggle:hover{background:var(--blue-soft)}
.pw-msg{margin-top:12px;font-size:14px;font-weight:600}
.pw-msg.ok{color:var(--green)}
.pw-msg.bad{color:var(--red)}
.auth-help{margin-top:22px;padding-top:18px;border-top:1px solid var(--line);font-size:14px;color:var(--muted);line-height:1.6}
.auth-help p{margin:0 0 8px}
.auth-help a{font-weight:600;text-decoration:none}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;filter:none}
@media (max-width:600px){.wrap{padding:28px 16px 40px}.card,.form-card{padding:22px}}