* { box-sizing: border-box; }
body { font-family: "Hiragino Sans", "Noto Sans JP", Meiryo, sans-serif; margin: 0; background: #f4f6f8; color: #1a202c; }
main { max-width: 1000px; margin: 24px auto; padding: 0 16px; }
main.center { display: flex; justify-content: center; align-items: flex-start; min-height: 80vh; padding-top: 8vh; }
.card { background: #fff; border-radius: 10px; padding: 20px 24px; margin-bottom: 20px; box-shadow: 0 1px 3px rgba(0,0,0,.08); }
.card.narrow { width: 460px; }
h1 { font-size: 1.3rem; } h2 { font-size: 1.15rem; margin-top: 0; } h3 { font-size: 1rem; }
.nav { display: flex; align-items: center; gap: 24px; background: #14314f; color: #fff; padding: 10px 24px; }
.nav .brand { font-weight: 700; letter-spacing: .05em; }
.nav a { color: #cfe0f2; text-decoration: none; margin-right: 14px; }
.nav a:hover { color: #fff; }
.nav .who { margin-left: auto; font-size: .85rem; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid #e2e8f0; }
label { display: block; margin: 10px 0; font-size: .9rem; }
input[type=text], input[type=email], input[type=password], input:not([type]), textarea, select {
  width: 100%; padding: 8px 10px; border: 1px solid #cbd5e0; border-radius: 6px; font-size: .95rem; margin-top: 4px; }
button { background: #14314f; color: #fff; border: 0; border-radius: 6px; padding: 9px 18px; font-size: .95rem; cursor: pointer; margin-top: 8px; }
button:hover { background: #1d4570; }
button.link { background: none; color: #2563eb; padding: 0; margin: 0; text-decoration: underline; font-size: .85rem; }
.btn { display: inline-block; background: #14314f; color: #fff; padding: 8px 16px; border-radius: 6px; text-decoration: none; }
.inline { display: inline; }
.hint { color: #64748b; font-size: .8rem; }
.ok { color: #15803d; font-weight: 600; }
.warn { color: #b45309; }
.bad { color: #b91c1c; font-weight: 600; }
.alert { background: #fee2e2; color: #991b1b; padding: 10px 14px; border-radius: 6px; }
.flash { background: #dcfce7; color: #166534; padding: 10px 14px; border-radius: 6px; }
.warnbox { background: #fef3c7; border: 1px solid #f59e0b; border-radius: 8px; padding: 12px 16px; margin: 12px 0; }
.msg { background: #f1f5f9; padding: 10px 14px; border-radius: 6px; white-space: pre-wrap; }
.grid3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
.filepick { max-height: 220px; overflow-y: auto; border: 1px solid #e2e8f0; border-radius: 6px; padding: 8px 12px; }
.row { margin: 6px 0; }
code { background: #f1f5f9; padding: 2px 6px; border-radius: 4px; font-size: .82rem; word-break: break-all; }
hr { border: 0; border-top: 1px solid #e2e8f0; margin: 16px 0; }
code.pick { display: inline-block; cursor: pointer; user-select: all; -webkit-user-select: all; }