/* Страницы ядра (вход, регистрация, оплата): нейтральный вид на токенах бренда (/brand/tokens.css). */
*,*::before,*::after{box-sizing:border-box}
body.core-page{margin:0;min-height:100vh;background:#f4f6fa;color:#1f2937;font:16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
.core-header{display:flex;align-items:center;justify-content:space-between;padding:16px;max-width:960px;margin:0 auto}
.core-brand{display:flex;align-items:center;gap:8px;color:inherit;text-decoration:none;font-weight:700}
.core-logo{height:28px;width:auto}
.core-brand span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.core-langs{display:flex;gap:8px}
.core-langs a{color:#4b5563;text-decoration:none;font-size:14px;padding:4px 6px;border-radius:6px}
.core-langs a[aria-current="true"]{background:#e5e7eb;color:#111827}
.core-card{background:#fff;max-width:440px;margin:24px auto;padding:24px;border-radius:12px;box-shadow:0 1px 3px rgba(0,0,0,.08)}
@media (max-width:480px){.core-card{margin:8px 16px;padding:20px}}
.core-card h1{margin:0 0 16px;font-size:24px;line-height:1.25}
.core-form{display:flex;flex-direction:column;gap:14px}
.core-field{display:flex;flex-direction:column;gap:6px;font-size:14px;color:#374151}
.core-field input{font:inherit;padding:10px 12px;border:1px solid #d1d5db;border-radius:8px;width:100%}
.core-field input:focus{outline:2px solid var(--brand-primary);outline-offset:1px;border-color:var(--brand-primary)}
.core-check{display:flex;gap:8px;align-items:flex-start;font-size:14px}
.core-check a{color:var(--brand-primary)}
.core-button{display:inline-block;font:inherit;font-weight:600;padding:10px 16px;border:0;border-radius:8px;cursor:pointer;text-align:center;text-decoration:none;background:var(--brand-primary);color:var(--brand-primary-contrast)}
.core-button:hover{background:var(--brand-primary-hover)}
.core-button-secondary{background:#e5e7eb;color:#111827}
.core-button-secondary:hover{background:#d1d5db}
.core-links{display:flex;flex-direction:column;gap:8px;margin:16px 0 0;font-size:14px}
.core-links a{color:var(--brand-primary)}
.core-links a.core-button{color:var(--brand-primary-contrast)}
.core-notice{padding:10px 12px;border-radius:8px;font-size:14px;margin:0 0 14px}
.core-notice-error{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}
.core-notice-info{background:#eff6ff;color:#1e3a8a;border:1px solid #bfdbfe}