/* Administration panel and installer styles */
:root {
    --indigo-900: #0b1930; --indigo-800: #13294b; --steel: #2f5d9b; --link: #1f4f8f;
    --amber: #e8a33d; --amber-600: #d18f26; --paper: #eef3f9; --ink: #101b2d; --muted: #55637a;
    --line: #d3ddea; --green: #1b8f7a; --danger: #b3261e; --radius: 3px;
    --font: "Segoe UI", "Hiragino Sans", "Noto Sans JP", "Noto Sans Arabic", system-ui, -apple-system, Roboto, Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
body.admin { margin: 0; font-family: var(--font); font-size: 1rem; line-height: 1.55; color: var(--ink); background: var(--paper); }
a { color: var(--link); }
h1 { font-size: 1.7rem; margin: 0 0 1rem; color: var(--indigo-800); line-height: 1.2; }
h2 { font-size: 1.2rem; margin: 1.6rem 0 0.7rem; color: var(--indigo-800); }
:focus-visible { outline: 3px solid var(--amber); outline-offset: 2px; }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.muted { color: var(--muted); font-size: 0.9rem; }

.admin-header { background: var(--indigo-800); color: #fff; }
.admin-bar { max-width: 1200px; margin: 0 auto; padding: 0.6rem 1rem; display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem 1.5rem; }
.admin-brand { display: inline-flex; align-items: center; gap: 0.6rem; color: #fff; font-weight: 650; text-decoration: none; }
.admin-brand img { border-radius: 5px; }
.admin-nav ul { display: flex; flex-wrap: wrap; gap: 0.2rem; list-style: none; margin: 0; padding: 0; }
.admin-nav a { display: inline-block; padding: 0.4rem 0.7rem; color: #d6e2f5; text-decoration: none; border-radius: var(--radius); }
.admin-nav a:hover { background: rgba(255, 255, 255, 0.12); color: #fff; }
.admin-nav a[aria-current="page"] { background: var(--amber); color: var(--indigo-900); font-weight: 650; }
.badge { display: inline-block; min-width: 1.35rem; padding: 0 0.4rem; margin-inline-start: 0.3rem; border-radius: 999px; background: #fff; color: var(--indigo-800); font-size: 0.78rem; font-weight: 700; text-align: center; }
.admin-user { margin-inline-start: auto; display: flex; align-items: center; gap: 1rem; font-size: 0.9rem; }
.admin-user a, .admin-user .link-button { color: #d6e2f5; }
.admin-user form { margin: 0; }

.admin-main { max-width: 1200px; margin: 0 auto; padding: 1.5rem 1rem 3rem; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.4rem; margin-bottom: 1.2rem; }
.card-narrow { max-width: 34rem; margin-inline: auto; }
.card h2:first-child { margin-top: 0; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 0.8rem; margin-bottom: 1.5rem; }
.stat { display: flex; flex-direction: column; padding: 1rem 1.1rem; background: #fff; border: 1px solid var(--line); border-top: 3px solid var(--steel); border-radius: var(--radius); text-decoration: none; color: var(--ink); }
.stat strong { font-size: 2rem; line-height: 1.1; color: var(--indigo-800); }
.stat span { color: var(--muted); font-size: 0.9rem; }
.stat:hover { background: #f8fafd; }

.table-wrap { overflow-x: auto; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.table { width: 100%; border-collapse: collapse; min-width: 560px; }
.table th, .table td { padding: 0.7rem 0.9rem; text-align: start; border-bottom: 1px solid var(--line); vertical-align: top; }
.table th { background: #f6f9fc; font-size: 0.85rem; color: var(--muted); font-weight: 650; }
.table tr:last-child td { border-bottom: 0; }
.row-new td { background: #fffaf0; }
.row-actions { white-space: nowrap; }
.row-actions form { display: inline; margin-inline-start: 0.8rem; }
.tag { display: inline-block; padding: 0.1rem 0.55rem; border: 1px solid var(--line); border-radius: var(--radius); font-size: 0.8rem; font-weight: 600; color: var(--muted); background: #fff; }
.tag-new { border-color: var(--green); color: var(--green); }
.tag-danger { border-color: var(--danger); color: var(--danger); }

.detail-list { display: grid; gap: 0.4rem 1.5rem; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); margin: 0 0 1rem; }
.detail-list dt { font-size: 0.8rem; color: var(--muted); font-weight: 650; }
.detail-list dd { margin: 0 0 0.4rem; overflow-wrap: anywhere; }
.message-body { padding: 1rem; background: var(--paper); border-radius: var(--radius); white-space: normal; overflow-wrap: anywhere; }
.actions { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.2rem; align-items: center; }
.actions form { margin: 0; }

.btn { display: inline-flex; align-items: center; justify-content: center; padding: 0.55rem 1.1rem; border: 2px solid transparent; border-radius: var(--radius); font: inherit; font-weight: 650; text-decoration: none; cursor: pointer; }
.btn-primary { background: var(--amber); color: var(--indigo-900); }
.btn-primary:hover { background: var(--amber-600); }
.btn-outline { border-color: var(--indigo-800); color: var(--indigo-800); background: #fff; }
.btn-outline:hover { background: var(--indigo-800); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-large { padding: 0.8rem 1.5rem; font-size: 1.05rem; }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }
.link-button { background: none; border: 0; padding: 0; font: inherit; color: var(--link); text-decoration: underline; cursor: pointer; }
.link-button.danger { color: var(--danger); }

.form { display: grid; gap: 1rem; }
.field-row { display: grid; gap: 1rem; }
@media (min-width: 640px) { .field-row { grid-template-columns: 1fr 1fr; } }
.field label { display: block; margin-bottom: 0.3rem; font-weight: 600; font-size: 0.92rem; }
.field input[type="text"], .field input[type="email"], .field input[type="tel"], .field input[type="url"], .field input[type="number"],
.field input[type="password"], .field input[type="datetime-local"], .field select, .field textarea {
    width: 100%; padding: 0.6rem 0.7rem; border: 1px solid #8fa1ba; border-radius: var(--radius); background: #fff; font: inherit; color: var(--ink);
}
.field textarea.mono { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: 0.92rem; }
.field-hint { margin: 0.3rem 0 0; font-size: 0.85rem; color: var(--muted); }
.field-check { display: grid; grid-template-columns: auto 1fr; gap: 0.2rem 0.6rem; align-items: start; }
.field-check input { width: 1.15rem; height: 1.15rem; margin-top: 0.2rem; accent-color: var(--indigo-800); }
.field-check label { margin: 0; font-weight: 400; }
fieldset { border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem 1.1rem 1.2rem; margin: 0; display: grid; gap: 1rem; }
legend { padding: 0 0.4rem; font-weight: 700; color: var(--indigo-800); }

.flash { margin: 0 0 1rem; padding: 0.75rem 1rem; border-radius: var(--radius); border: 1px solid var(--line); border-inline-start: 4px solid var(--steel); background: #fff; }
.flash-success { border-inline-start-color: var(--green); background: #e8f5f1; }
.flash-error { border-inline-start-color: var(--danger); background: #fdecea; }
.flash ul { margin: 0.4rem 0 0; padding-inline-start: 1.2rem; }

.filter-bar { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1rem; }
.filter-bar a { padding: 0.35rem 0.8rem; border: 1px solid var(--line); border-radius: var(--radius); text-decoration: none; background: #fff; color: var(--ink); }
.filter-bar a[aria-current="true"] { background: var(--indigo-800); border-color: var(--indigo-800); color: #fff; }
.pagination { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 1rem; }
.page-link { padding: 0.35rem 0.75rem; border: 1px solid var(--line); border-radius: var(--radius); text-decoration: none; background: #fff; color: var(--ink); }
.page-link[aria-current="page"] { background: var(--indigo-800); border-color: var(--indigo-800); color: #fff; }

.login-box { max-width: 24rem; margin: 6vh auto 0; padding: 2rem; background: #fff; border: 1px solid var(--line); border-top: 4px solid var(--amber); border-radius: var(--radius); text-align: center; }
.login-box img { border-radius: 8px; }
.login-box .form { text-align: start; }
.login-back { margin: 1.2rem 0 0; font-size: 0.9rem; }

.install-main { max-width: 52rem; margin: 0 auto; padding: 2rem 1rem 4rem; }
.install-card { padding: 1.6rem; }
.install-card > img { display: block; border-radius: 8px; margin-bottom: 0.6rem; }
.card-narrow > img { border-radius: 8px; }
.req-list { list-style: none; margin: 0 0 1rem; padding: 0; }
.req-list li { padding: 0.25rem 0; }