:root {
  --bg: #f5f6fa;
  --bg-elev: #ffffff;
  --surface: #ffffff;
  --text: #1a1c28;
  --muted: #6b7088;
  --border: #e6e8f0;
  --accent: #6d5efc;
  --accent-2: #9b8cff;
  --accent-ink: #ffffff;
  --green: #1faa6c;
  --green-bg: #e6f7ef;
  --amber: #c9851b;
  --red: #e0455e;
  --shadow: 0 6px 24px rgba(31, 35, 70, .08);
  --radius: 18px;
  --radius-sm: 12px;
}
[data-theme="dark"] {
  --bg: #0e0f1a;
  --bg-elev: #181a2b;
  --surface: #1c1e30;
  --text: #ecedf5;
  --muted: #9aa0bd;
  --border: #2a2d44;
  --accent: #8b7dff;
  --accent-2: #b3a7ff;
  --accent-ink: #11121e;
  --green: #34d399;
  --green-bg: #11321f;
  --amber: #e0a64a;
  --red: #ff6b82;
  --shadow: 0 8px 30px rgba(0, 0, 0, .35);
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  padding-bottom: 84px;
  transition: background .25s, color .25s;
}
a { color: var(--accent); text-decoration: none; }

/* Topbar */
.topbar {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; gap: 12px;
  padding: 14px 18px;
  background: color-mix(in srgb, var(--bg-elev) 88%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.05rem; letter-spacing: -.02em; }
.brand .logo {
  width: 34px; height: 34px; border-radius: 11px;
  display: grid; place-items: center; font-size: 18px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--accent-ink); box-shadow: var(--shadow);
}
.topbar .spacer { flex: 1; }
.iconbtn {
  width: 40px; height: 40px; border-radius: 12px;
  border: 1px solid var(--border); background: var(--surface);
  color: var(--text); cursor: pointer; font-size: 18px;
  display: grid; place-items: center; transition: .15s;
}
.iconbtn:hover { border-color: var(--accent); }
.userchip { font-size: .85rem; color: var(--muted); display: flex; align-items: center; gap: 8px; }

/* Layout */
.wrap { max-width: 760px; margin: 0 auto; padding: 20px 16px 40px; }
.pagetitle { font-size: 1.55rem; font-weight: 760; letter-spacing: -.03em; margin: 8px 0 4px; }
.pagesub { color: var(--muted); margin: 0 0 20px; font-size: .95rem; }

.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 18px; margin-bottom: 18px;
}
.card h2 { margin: 0 0 14px; font-size: 1.05rem; letter-spacing: -.01em; }

/* Add form */
form.addform { display: grid; gap: 10px; }
.field label { display: block; font-size: .78rem; color: var(--muted); margin-bottom: 4px; font-weight: 600; }
input[type=text], input[type=password], input[type=number], select {
  width: 100%; padding: 12px 14px; font-size: 1rem;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg-elev); color: var(--text); outline: none; transition: .15s;
}
input:focus, select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent); }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.btn {
  appearance: none; border: none; cursor: pointer;
  padding: 12px 18px; border-radius: var(--radius-sm); font-size: 1rem; font-weight: 650;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: var(--accent-ink);
  transition: transform .08s, filter .15s; display: inline-flex; align-items: center; gap: 8px; justify-content: center;
}
.btn:hover { filter: brightness(1.05); }
.btn:active { transform: translateY(1px); }
.btn.full { width: 100%; }
.btn.ghost { background: var(--surface); color: var(--text); border: 1px solid var(--border); }
.btn.green { background: linear-gradient(135deg, var(--green), #2dd48f); color: #04231a; }
.btn.sm { padding: 8px 12px; font-size: .85rem; }
.btn.icon { padding: 9px 11px; }

/* Items */
ul.items { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.item {
  display: flex; align-items: center; gap: 12px;
  padding: 14px; border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg-elev);
}
.item .main { flex: 1; min-width: 0; }
.item .name { font-weight: 650; letter-spacing: -.01em; }
.item .meta { font-size: .82rem; color: var(--muted); margin-top: 2px; display: flex; flex-wrap: wrap; gap: 6px 12px; }
.item .actions { display: flex; gap: 6px; flex-shrink: 0; }
.pill { display: inline-flex; align-items: center; gap: 5px; padding: 2px 9px; border-radius: 999px; font-size: .74rem; font-weight: 600; background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent); }
.pill.person { background: color-mix(in srgb, var(--muted) 16%, transparent); color: var(--muted); }
.tag-amt { font-weight: 700; }
.tag-eur { color: var(--green); font-weight: 750; }

.empty { text-align: center; color: var(--muted); padding: 30px 10px; }
.empty .big { font-size: 34px; margin-bottom: 6px; }

/* inline kauf form */
.kaufrow { display: flex; gap: 8px; align-items: flex-end; flex-wrap: wrap; padding: 14px; border: 1px dashed var(--accent); border-radius: var(--radius-sm); background: color-mix(in srgb, var(--accent) 7%, var(--bg-elev)); }
.kaufrow .field { flex: 1; min-width: 90px; }
.kaufrow .field.cur { max-width: 110px; }

/* totals */
.total-hero { text-align: center; padding: 22px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: var(--accent-ink); border-radius: var(--radius); box-shadow: var(--shadow); margin-bottom: 18px; }
.total-hero .label { opacity: .85; font-size: .85rem; font-weight: 600; }
.total-hero .amount { font-size: 2.3rem; font-weight: 800; letter-spacing: -.03em; margin-top: 4px; }
.kvtable { width: 100%; border-collapse: collapse; }
.kvtable td { padding: 10px 4px; border-bottom: 1px solid var(--border); }
.kvtable td:last-child { text-align: right; font-weight: 700; }
.kvtable tr:last-child td { border-bottom: none; }

.kursnote { font-size: .8rem; color: var(--muted); margin-top: 10px; line-height: 1.5; }

/* checkbox pack */
.checkitem { cursor: pointer; }
.checkitem.done { opacity: .55; }
.checkitem.done .name { text-decoration: line-through; }
.checkbox {
  width: 26px; height: 26px; border-radius: 8px; border: 2px solid var(--border);
  display: grid; place-items: center; flex-shrink: 0; color: transparent; font-size: 15px; transition: .15s;
}
.checkitem.done .checkbox { background: var(--green); border-color: var(--green); color: #fff; }

/* bottom nav */
.bottomnav {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 40;
  display: flex; justify-content: space-around;
  background: color-mix(in srgb, var(--bg-elev) 92%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  border-top: 1px solid var(--border); padding: 8px 6px calc(8px + env(safe-area-inset-bottom));
}
.bottomnav a { display: flex; flex-direction: column; align-items: center; gap: 2px; color: var(--muted); font-size: .68rem; font-weight: 600; padding: 4px 14px; border-radius: 12px; }
.bottomnav a .ic { font-size: 21px; }
.bottomnav a.active { color: var(--accent); }

/* messages */
.msg { padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom: 14px; font-weight: 600; font-size: .92rem; }
.msg.success { background: var(--green-bg); color: var(--green); }

/* login */
.login-wrap { min-height: 100dvh; display: grid; place-items: center; padding: 20px; }
.login-card { width: 100%; max-width: 380px; }
.login-card .logo-big { width: 60px; height: 60px; border-radius: 18px; display: grid; place-items: center; font-size: 30px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: var(--accent-ink); margin: 0 auto 14px; box-shadow: var(--shadow); }
.errnote { color: var(--red); font-size: .85rem; margin-top: 6px; }

table.users { width: 100%; border-collapse: collapse; }
table.users td, table.users th { padding: 10px 6px; border-bottom: 1px solid var(--border); text-align: left; font-size: .9rem; }
.badge { font-size: .7rem; padding: 2px 8px; border-radius: 999px; background: color-mix(in srgb, var(--accent) 14%, transparent); color: var(--accent); font-weight: 600; }
.badge.off { background: color-mix(in srgb, var(--red) 14%, transparent); color: var(--red); }

.count { font-size: .72rem; font-weight: 700; color: var(--accent); background: color-mix(in srgb, var(--accent) 14%, transparent); border-radius: 999px; padding: 1px 9px; margin-left: 6px; vertical-align: middle; }

.btn.paypal { background: linear-gradient(135deg, #0070ba, #003087); color: #fff; margin-top: 14px; }
.btn.paypal.sm { margin-top: 0; }
.total-hero .btn.paypal { display: inline-flex; }