:root {
  --coral: #D85A30;
  --coral-dark: #993C1D;
  --coral-light: #FAECE7;
  --coral-tint: #F5C4B3;
  --green: #0F6E56;
  --green-bg: #E1F5EE;
  --red: #993C1D;
  --red-bg: #FAECE7;
  --amber: #854F0B;
  --amber-bg: #FAEEDA;
  --text-primary: #201a17;
  --text-secondary: #6b5f58;
  --text-muted: #a89a92;
  --surface: #ffffff;
  --page-bg: #FDF6F2;
  --border: #eee0d8;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--page-bg);
  color: var(--text-primary);
  padding-bottom: 72px;
}

.app-header {
  background: linear-gradient(135deg, var(--coral), var(--coral-dark));
  color: var(--coral-light);
  padding: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 10;
}

.app-header h1 {
  font-size: 17px;
  font-weight: 600;
  margin: 0;
}

.app-header .icons { display: flex; gap: 14px; font-size: 18px; }
.app-header a { color: inherit; text-decoration: none; }

.container { padding: 16px; max-width: 480px; margin: 0 auto; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.stat-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 14px;
  border: 1px solid var(--border);
}
.stat-card .label { font-size: 12px; color: var(--text-secondary); margin: 0 0 6px; }
.stat-card .value { font-size: 19px; font-weight: 600; margin: 0; }
.stat-card.receivable .value { color: var(--green); }
.stat-card.payable .value { color: var(--red); }

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  margin: 14px 0;
  color: var(--text-muted);
  font-size: 14px;
}
.search-box input {
  border: none;
  outline: none;
  background: transparent;
  flex: 1;
  font-size: 14px;
  color: var(--text-primary);
}

.section-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  font-weight: 600;
  margin: 18px 0 8px;
}
.section-title a { font-size: 12px; color: var(--coral); text-decoration: none; font-weight: 500; }

.filter-pills { display: flex; gap: 8px; margin-bottom: 10px; }
.filter-pills a {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 12px;
  text-decoration: none;
  color: var(--text-secondary);
  background: var(--surface);
  border: 1px solid var(--border);
}
.filter-pills a.active { background: var(--coral); color: #fff; border-color: var(--coral); }

.account-row, .txn-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
}
.avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--coral-tint);
  color: var(--coral-dark);
  display: flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: 14px;
  flex-shrink: 0;
}
.account-info { flex: 1; min-width: 0; }
.account-info .name { font-size: 14px; font-weight: 500; margin: 0; }
.account-info .meta { font-size: 12px; color: var(--text-muted); margin: 2px 0 0; }
.amount { font-size: 14px; font-weight: 600; white-space: nowrap; }
.amount.pos { color: var(--green); }
.amount.neg { color: var(--red); }

.fab {
  position: fixed;
  bottom: 68px;
  right: 20px;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--coral);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  box-shadow: 0 4px 12px rgba(216,90,48,0.4);
  text-decoration: none;
  z-index: 20;
}

.bottom-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-around;
  padding: 8px 0 max(8px, env(safe-area-inset-bottom));
  z-index: 15;
}
.bottom-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 10px;
  display: flex; flex-direction: column; align-items: center; gap: 3px;
}
.bottom-nav a.active { color: var(--coral); }
.bottom-nav .icon { font-size: 20px; }

.card {
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 16px;
  margin-bottom: 14px;
}

.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 6px; color: var(--text-secondary); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  background: var(--surface);
  color: var(--text-primary);
}
.radio-group { display: flex; gap: 16px; flex-wrap: wrap; }
.radio-group label { display: flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 400; color: var(--text-primary); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 18px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-decoration: none;
  width: 100%;
}
.btn-primary { background: var(--coral); color: #fff; }
.btn-give { background: var(--green-bg); color: var(--green); }
.btn-receive { background: var(--amber-bg); color: var(--amber); }
.btn-row { display: flex; gap: 10px; }
.btn-row .btn { flex: 1; }

.balance-summary {
  background: var(--coral-light);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
  margin-bottom: 16px;
}
.balance-summary .label { font-size: 12px; color: var(--coral-dark); margin: 0 0 4px; }
.balance-summary .value { font-size: 24px; font-weight: 700; color: var(--coral-dark); margin: 0; }

.ledger-date { font-size: 11px; color: var(--text-muted); margin: 16px 0 6px; text-transform: uppercase; letter-spacing: 0.03em; }
.ledger-entry { display: flex; justify-content: space-between; align-items: flex-start; padding: 6px 0; }
.ledger-entry .desc { font-size: 13px; font-weight: 500; margin: 0; }
.ledger-entry .sub { font-size: 12px; color: var(--text-muted); margin: 2px 0 0; }

.empty-state { text-align: center; padding: 40px 20px; color: var(--text-muted); }
.error-text { color: var(--red); font-size: 13px; margin-top: 4px; }

.auth-wrap { max-width: 380px; margin: 60px auto; padding: 0 20px; }
.auth-wrap h1 { font-size: 20px; text-align: center; margin-bottom: 4px; }
.auth-wrap p.sub { text-align: center; color: var(--text-secondary); font-size: 13px; margin-bottom: 24px; }
.auth-link { text-align: center; font-size: 13px; margin-top: 16px; color: var(--text-secondary); }
.auth-link a { color: var(--coral); font-weight: 500; text-decoration: none; }