:root {
  --ink: #0d0e10; --muted: rgba(13,14,16,.5); --line: rgba(13,14,16,.13);
  --paper: #f7f6f3; --card: #fff; --accent: #8a6a3a; --ok: #1f7a4d; --err: #a52a2a;
  --sans: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --serif: "Iowan Old Style", Palatino, Georgia, serif;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: var(--sans); background: var(--paper); color: var(--ink); font-size: 15px; line-height: 1.55; }
button, input, textarea, select { font: inherit; color: inherit; }
.muted { color: var(--muted); font-size: .85rem; margin: .2rem 0 0; }
.btn { border-radius: 999px; padding: .6rem 1.4rem; border: 1px solid var(--ink); cursor: pointer; background: none; font-size: .85rem; transition: background .25s, color .25s, opacity .25s; }
.btn-solid { background: var(--ink); color: var(--paper); }
.btn-solid:hover { background: var(--accent); border-color: var(--accent); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }
.btn:disabled { opacity: .4; cursor: default; }
.link { background: none; border: 0; padding: 0; cursor: pointer; color: var(--muted); font-size: .85rem; text-align: left; }
.link:hover { color: var(--ink); }

/* logowanie */
.login { min-height: 100svh; display: grid; place-items: center; padding: 2rem; }
.login[hidden] { display: none; }
.login-card { background: var(--card); border: 1px solid var(--line); padding: 3rem; width: min(400px, 100%); display: grid; gap: 1rem; }
.login-card h1 { font-family: var(--serif); font-weight: 400; font-size: 1.8rem; margin: 0; }
.login-card label { display: grid; gap: .4rem; font-size: .8rem; color: var(--muted); margin-top: 1rem; }
.login-card input { padding: .8rem; border: 1px solid var(--line); background: var(--paper); }
.err { color: var(--err); font-size: .85rem; min-height: 1.2em; }

/* układ */
.app { display: grid; grid-template-columns: 250px 1fr; min-height: 100svh; }
.app[hidden] { display: none; }
.side { border-right: 1px solid var(--line); padding: 2rem 1.4rem; display: flex; flex-direction: column; gap: 2rem; position: sticky; top: 0; height: 100svh; }
.side-brand { font-family: var(--serif); font-size: 1.15rem; display: grid; }
.side-brand span { font-family: var(--sans); font-size: .62rem; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); }
#tabs { display: grid; gap: .15rem; }
#tabs button { background: none; border: 0; text-align: left; padding: .6rem .8rem; border-radius: 6px; cursor: pointer; color: var(--muted); font-size: .9rem; }
#tabs button:hover { background: rgba(13,14,16,.05); color: var(--ink); }
#tabs button.active { background: var(--ink); color: var(--paper); }
.side-foot { margin-top: auto; display: grid; gap: .6rem; font-size: .85rem; }
.side-foot a { color: var(--muted); text-decoration: none; }
.side-foot a:hover { color: var(--ink); }

.main { min-width: 0; }
.topbar { position: sticky; top: 0; z-index: 10; background: rgba(247,246,243,.92); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); padding: 1.4rem 2.5rem; display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
.topbar > div:first-child { flex: 1 1 240px; min-width: 0; }
.topbar h2 { font-family: var(--serif); font-weight: 400; font-size: 1.5rem; margin: 0; }
.topbar-actions { margin-left: auto; }
.topbar-actions { display: flex; align-items: center; gap: .8rem; }
.status { font-size: .82rem; color: var(--muted); min-width: 90px; text-align: right; }
.status.ok { color: var(--ok); }
.status.err { color: var(--err); }
.panes { padding: 2.5rem; max-width: 900px; }
.pane { display: none; }
.pane.active { display: block; animation: fade .3s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } }

/* pola */
.field { display: grid; gap: .4rem; margin-bottom: 1.5rem; }
.field > label { font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.field input, .field textarea, .field select { width: 100%; padding: .75rem .9rem; border: 1px solid var(--line); background: var(--card); border-radius: 4px; }
.field input:focus, .field textarea:focus { outline: 0; border-color: var(--ink); }
.field textarea { resize: vertical; min-height: 90px; line-height: 1.6; }
.hint { font-size: .78rem; color: var(--muted); }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 1.6rem; margin-bottom: 1.2rem; }
.card-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 1.2rem; }
.card-head h3 { font-family: var(--serif); font-weight: 400; font-size: 1.15rem; margin: 0; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.del { background: none; border: 1px solid var(--line); border-radius: 999px; padding: .35rem .9rem; font-size: .78rem; cursor: pointer; color: var(--muted); }
.del:hover { border-color: var(--err); color: var(--err); }
.add { border: 1px dashed var(--line); background: none; width: 100%; padding: .9rem; border-radius: 8px; cursor: pointer; color: var(--muted); font-size: .88rem; }
.add:hover { border-color: var(--ink); color: var(--ink); }

.thumb { display: flex; gap: 1rem; align-items: center; margin-bottom: 1rem; }
.thumb img { width: 74px; height: 94px; object-fit: cover; border-radius: 4px; background: #eee; border: 1px solid var(--line); }
.thumb.wide img { width: 130px; height: 82px; }

.section-title { font-family: var(--serif); font-size: 1.1rem; margin: 2.5rem 0 1rem; padding-bottom: .6rem; border-bottom: 1px solid var(--line); }
.section-title:first-child { margin-top: 0; }

@media (max-width: 820px) {
  .app { grid-template-columns: 1fr; }
  .side { position: static; height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  #tabs { grid-auto-flow: column; overflow-x: auto; }
  .panes, .topbar { padding: 1.5rem; }
  .row { grid-template-columns: 1fr; }
}