:root{--ink:#071719;--aqua:#65e4db;--paper:#f2f7f6;--line:#d6e1e0;--muted:#6a7b7d}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans JP",Arial,sans-serif;line-height:1.6}a{color:inherit}.admin-shell{display:grid;grid-template-columns:250px 1fr;min-height:100vh}.admin-side{background:var(--ink);color:#fff;padding:28px 22px;position:sticky;top:0;height:100vh}.admin-side img{width:155px;filter:brightness(0) invert(1);margin-bottom:44px}.admin-side nav a{display:block;padding:12px 14px;border-radius:10px;color:#bfd0d0;text-decoration:none;margin-bottom:5px}.admin-side nav a:hover,.admin-side nav a.active{background:#133235;color:#fff}.admin-side small{position:absolute;bottom:24px;color:#6e898a}.admin-main{padding:40px;max-width:1500px;width:100%}.admin-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px}.admin-top h1{font-size:38px;margin:0}.admin-button{display:inline-flex;align-items:center;border:0;border-radius:999px;padding:12px 18px;background:var(--ink);color:#fff;text-decoration:none;font-weight:700}.admin-button.aqua{background:var(--aqua);color:var(--ink)}.admin-button.danger{background:#8d2323}.admin-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.admin-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px}.admin-card strong{display:block;font-size:44px}.admin-card p{color:var(--muted)}.admin-layout{display:grid;grid-template-columns:minmax(360px,.8fr) 1.2fr;gap:24px;align-items:start}.admin-panel{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px}.admin-panel h2{margin-top:0}.admin-field{margin-bottom:18px}.admin-field label{display:block;font-size:12px;font-weight:700;margin-bottom:6px}.admin-field input,.admin-field textarea,.admin-field select{width:100%;border:1px solid #c7d5d4;border-radius:9px;padding:11px 12px;background:#fbfdfd}.admin-field textarea{min-height:120px;resize:vertical}.admin-table{width:100%;border-collapse:collapse}.admin-table th,.admin-table td{text-align:left;padding:13px 8px;border-bottom:1px solid var(--line);vertical-align:top}.admin-table th{font-size:11px;text-transform:uppercase;color:var(--muted)}.admin-table td small{color:var(--muted)}.admin-actions{display:flex;gap:7px;flex-wrap:wrap}.admin-actions a,.admin-actions button{font-size:12px;padding:6px 10px;border-radius:7px;border:1px solid var(--line);background:#fff;text-decoration:none}.admin-alert{padding:13px 16px;border-radius:10px;margin-bottom:20px}.admin-alert.ok{background:#e5fff8;color:#0b685f}.admin-alert.error{background:#fff0f0;color:#8f2525}.login-page{min-height:100vh;background:var(--ink);display:grid;place-items:center;padding:25px}.login-card{width:min(470px,100%);background:#fff;border-radius:25px;padding:38px}.login-card img{width:190px;color:var(--ink);margin-bottom:25px}.login-card h1{font-size:34px;margin:0 0 8px}.login-card p{color:var(--muted)}.login-card button{width:100%}.status{font-size:11px;padding:4px 8px;border-radius:999px;background:#e4f5f3}.status.draft{background:#eee;color:#666}.admin-note{font-size:12px;color:var(--muted);background:#eff6f5;padding:13px;border-radius:10px}.preview-image{width:100%;max-height:180px;object-fit:cover;border-radius:12px;margin-top:10px}@media(max-width:1000px){.admin-shell{grid-template-columns:1fr}.admin-side{position:relative;height:auto}.admin-side nav{display:flex;flex-wrap:wrap}.admin-side small{display:none}.admin-main{padding:25px}.admin-layout,.admin-grid{grid-template-columns:1fr}}@media(max-width:650px){.admin-main{padding:18px}.admin-top{align-items:flex-start;gap:15px;flex-direction:column}.admin-table{display:block;overflow:auto}.login-card{padding:26px}}