:root {
  --bg: #f5f4ef;
  --card: #ffffff;
  --ink: #1d1c19;
  --muted: #747066;
  --line: #e7e4dc;
  --soft: #f0eee8;
  --green: #17845a;
  --green-bg: #e3f3eb;
  --red: #c5402e;
  --red-bg: #fbe7e3;
  --blue: #2c5cc9;
  --blue-bg: #e5ecfb;
  --amber: #a86b12;
  --amber-bg: #f9eedb;
  --radius: 16px;
  --shadow: 0 1px 2px rgba(30, 25, 15, .04), 0 4px 16px rgba(30, 25, 15, .05);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121210;
    --card: #1b1a18;
    --ink: #efede7;
    --muted: #9b968b;
    --line: #2d2b27;
    --soft: #24231f;
    --green: #4cc38a;
    --green-bg: #173326;
    --red: #f06b58;
    --red-bg: #3a1c17;
    --blue: #7ea3ff;
    --blue-bg: #1b2540;
    --amber: #e3aa4f;
    --amber-bg: #3a2b14;
    --shadow: none;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.5 Manrope, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}
h2 { font-size: 17px; margin: 0; letter-spacing: -.01em; }
h3 { font-size: 16px; margin: 0; }
.muted { color: var(--muted); font-size: 13px; }
.pos { color: var(--green); }
.neg { color: var(--red); }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 16px; }
main.wrap { padding-bottom: 48px; }
svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; flex: none; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }

/* Üst bar */
.topbar { background: var(--card); border-bottom: 1px solid var(--line); margin-bottom: 24px; }
.topbar-in { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { color: inherit; text-decoration: none; }
.me-link { display: flex; align-items: center; gap: 10px; color: inherit; text-decoration: none; padding: 4px 10px 4px 4px; border-radius: 99px; }
.me-link:hover { background: var(--soft); }
.narrow { max-width: 480px; }
.back { display: inline-block; color: var(--muted); text-decoration: none; font-weight: 600; font-size: 14px; margin-bottom: 14px; }
.back:hover { color: var(--ink); }
.profile-card { padding: 22px; margin-bottom: 12px; }
.profile-card h2 + .alert, .profile-card h2 + form { margin-top: 16px; }
.profile-card .partner-top { margin: 0; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; letter-spacing: -.02em; }
.logo { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; background: var(--ink); color: var(--bg); font-size: 18px; }
.me { display: flex; align-items: center; gap: 10px; font-weight: 600; }
.btn-ghost { color: var(--muted); text-decoration: none; font-size: 14px; padding: 6px 10px; border-radius: 8px; }
.btn-ghost:hover { background: var(--soft); color: var(--ink); }

.avatar {
  display: grid; place-items: center; flex: none;
  width: 42px; height: 42px; border-radius: 50%;
  background: var(--soft); color: var(--ink); font-weight: 800; font-size: 17px;
}
.avatar.sm { width: 30px; height: 30px; font-size: 13px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }

.alert { padding: 12px 16px; border-radius: 12px; margin-bottom: 16px; font-weight: 600; font-size: 14px; }
.alert.ok { background: var(--green-bg); color: var(--green); }
.alert.err { background: var(--red-bg); color: var(--red); }

/* Özet kutuları */
.stats { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 12px; margin-bottom: 32px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; display: flex; flex-direction: column; gap: 4px; box-shadow: var(--shadow); }
.stat .label { font-size: 13px; color: var(--muted); font-weight: 600; }
.stat strong { font-size: 24px; font-weight: 800; letter-spacing: -.02em; }
.stat small { color: var(--muted); font-size: 12px; }
.stat-main { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.stat-main .label, .stat-main small { color: inherit; opacity: .7; }
.stat-main strong { font-size: 30px; }
.stat-main strong.neg { color: var(--red); }

/* Ortaklar */
.section-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.howto { font-size: 14px; position: relative; }
.howto summary { cursor: pointer; color: var(--blue); font-weight: 600; list-style: none; }
.howto summary::-webkit-details-marker { display: none; }
.howto summary::before { content: "ⓘ "; }
.howto-body {
  position: absolute; right: 0; top: 28px; z-index: 5; width: min(420px, calc(100vw - 32px));
  background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 4px 16px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, .12); color: var(--ink);
}

.partners { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; margin-bottom: 32px; }
.partner { padding: 20px; position: relative; overflow: hidden; }
.partner::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: var(--line); }
.partner.credit::before { background: var(--green); }
.partner.debt::before { background: var(--red); }
.partner-top { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.partner h3 em { font-style: normal; font-size: 11px; font-weight: 700; background: var(--soft); color: var(--muted); padding: 2px 7px; border-radius: 99px; vertical-align: 2px; }
.partner-net { display: flex; align-items: center; gap: 10px; }
.partner-net strong { font-size: 28px; font-weight: 800; letter-spacing: -.02em; }
.credit .partner-net strong { color: var(--green); }
.debt .partner-net strong { color: var(--red); }
.badge { font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 99px; background: var(--soft); color: var(--muted); }
.credit .badge { background: var(--green-bg); color: var(--green); }
.debt .badge { background: var(--red-bg); color: var(--red); }
.partner-msg { margin: 4px 0 14px; color: var(--muted); font-size: 14px; }
.partner-msg b { color: var(--ink); }
.breakdown { margin: 0; border-top: 1px dashed var(--line); padding-top: 10px; font-size: 13px; }
.breakdown div { display: flex; justify-content: space-between; padding: 3px 0; }
.breakdown dt { color: var(--muted); }
.breakdown dd { margin: 0; font-weight: 600; }
.breakdown .sub { border-top: 1px solid var(--line); margin-top: 6px; padding-top: 8px; }

/* Form + liste */
.grid { display: grid; grid-template-columns: 380px 1fr; gap: 16px; align-items: start; }
.form-card { padding: 22px; position: sticky; top: 16px; }
.form-card h2 { margin-bottom: 16px; }
.list-card { padding: 22px 22px 10px; min-width: 0; }

.seg { border: 0; padding: 4px; margin: 0 0 16px; display: grid; grid-template-columns: 1fr 1fr; gap: 4px; background: var(--soft); border-radius: 12px; }
.seg label { cursor: pointer; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg span { display: flex; align-items: center; justify-content: center; gap: 6px; padding: 9px 6px; border-radius: 9px; font-weight: 600; font-size: 14px; color: var(--muted); transition: .15s; }
.seg span svg { width: 15px; height: 15px; }
.seg label:hover span { color: var(--ink); }
.seg input:checked + span { background: var(--card); color: var(--ink); box-shadow: 0 1px 3px rgba(0, 0, 0, .1); }
.seg-gider input:checked + span { color: var(--red); }
.seg-gelir input:checked + span { color: var(--green); }
.seg-yatirma input:checked + span { color: var(--blue); }
.seg-cekme input:checked + span { color: var(--amber); }
.seg input:focus-visible + span { outline: 2px solid var(--blue); }

.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; min-width: 0; }
.field > span { font-size: 13px; font-weight: 700; }
.field input, .field select, .field textarea {
  font: inherit; color: var(--ink); background: var(--card);
  border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; width: 100%; min-height: 44px;
}
.field textarea { resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-bg); }
.hint { color: var(--muted); font-size: 12px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.btn-primary {
  width: 100%; font: inherit; font-weight: 700; border: 0; border-radius: 10px; padding: 12px;
  background: var(--ink); color: var(--bg); cursor: pointer; min-height: 46px;
}
.btn-primary:hover { opacity: .88; }

.tx-list { list-style: none; margin: 0; padding: 0; }
.tx { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-top: 1px solid var(--line); }
.tx:first-child { border-top: 0; }
.tx-icon { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 11px; flex: none; }
.tx-gelir .tx-icon { background: var(--green-bg); color: var(--green); }
.tx-gider .tx-icon { background: var(--red-bg); color: var(--red); }
.tx-yatirma .tx-icon { background: var(--blue-bg); color: var(--blue); }
.tx-cekme .tx-icon { background: var(--amber-bg); color: var(--amber); }
.tx-body { flex: 1; min-width: 0; }
.tx-desc { font-weight: 600; overflow-wrap: anywhere; white-space: pre-line; }
.tx-meta { font-size: 12.5px; color: var(--muted); }
.tx-meta b { color: var(--ink); font-weight: 600; }
.tx-amount { font-weight: 800; white-space: nowrap; }
.tx-gelir .tx-amount { color: var(--green); }
.tx-gider .tx-amount { color: var(--red); }
.tx-yatirma .tx-amount { color: var(--blue); }
.tx-cekme .tx-amount { color: var(--amber); }
.icon-btn { display: grid; place-items: center; width: 32px; height: 32px; border: 0; border-radius: 8px; background: none; color: var(--muted); cursor: pointer; }
.icon-btn svg { width: 15px; height: 15px; }
.icon-btn:hover { background: var(--red-bg); color: var(--red); }
.empty { padding: 32px 0; text-align: center; color: var(--muted); }

.deleted { margin: 8px 0 12px; border-top: 1px solid var(--line); padding-top: 12px; }
.deleted summary { cursor: pointer; color: var(--muted); font-size: 13px; font-weight: 600; }
.deleted .tx { opacity: .6; }
.tx-reason { font-size: 12.5px; color: var(--red); margin-top: 2px; overflow-wrap: anywhere; }
.tx-reason b { font-weight: 700; }
.deleted .tx-desc, .deleted .tx-amount { text-decoration: line-through; }

/* Giriş */
.login-page { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: 100%; max-width: 380px; padding: 28px; }
.login-card .muted { margin: 8px 0 20px; }

@media (max-width: 900px) {
  .stats { grid-template-columns: 1fr 1fr; }
  .stat-main, .stat:last-child { grid-column: 1 / -1; }
  .grid { grid-template-columns: 1fr; }
  .form-card { position: static; }
}
@media (max-width: 520px) {
  .stat strong { font-size: 19px; }
  .me-name { display: none; }
  .tx-by { display: none; }
  .list-card, .form-card { padding: 16px; }
}