*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial,sans-serif;background:#f5f7fb;color:#0b1520}
.container{max-width:1000px;margin:0 auto;padding:16px}
.site-header{background:#fff;border-bottom:1px solid #e5e7eb;position:sticky;top:0;z-index:10}
.brand{font-weight:700;color:#0b1520;text-decoration:none}
.nav{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:8px}
.nav a{color:#0b1520;text-decoration:none;padding:6px 10px;border-radius:8px}
.nav a:hover{background:#eef2ff}
.nav a.admin{margin-left:auto;background:#0ea5e9;color:#fff}
.card{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:16px;margin:16px 0;box-shadow:0 1px 3px rgba(0,0,0,.05)}
.page-body{line-height:1.6}
.flash{list-style:none;padding:0;margin:8px 0}
.flash li{padding:8px 10px;border-radius:8px;margin:6px 0}
.flash li.success{background:#ecfdf5;color:#065f46}
.flash li.danger{background:#fef2f2;color:#991b1b}
.contact-form .row{display:flex;flex-direction:column;margin-bottom:10px}
.contact-form input,.contact-form textarea{padding:10px;border:1px solid #e5e7eb;border-radius:8px}
.contact-form button{background:#0ea5e9;color:#fff;border:0;border-radius:8px;padding:10px 14px;cursor:pointer}
.notice{background:#eef2ff;border:1px solid #c7d2fe;color:#3730a3;border-radius:8px;padding:8px 10px;margin-top:10px}
.editor-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.editor-grid fieldset{border:1px solid #e5e7eb;border-radius:12px;padding:12px}
.editor-grid legend{font-weight:600;padding:0 6px}
.editor-grid input,.editor-grid textarea{width:100%;padding:10px;border:1px solid #e5e7eb;border-radius:8px;margin:6px 0 10px}
.editor-grid .save{grid-column:1 / -1;background:#10b981;color:#fff;border:0;border-radius:10px;padding:12px 16px;cursor:pointer}
.site-footer{color:#64748b;font-size:.9rem;text-align:center;margin:16px 0}
@media (max-width: 800px){ .editor-grid{grid-template-columns:1fr} }