:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --panel-2: #273449;
  --border: #334155;
  --text: #e2e8f0;
  --text-dim: #94a3b8;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --danger: #ef4444;
  --success: #22c55e;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

a { color: var(--accent); text-decoration: none; }

/* ---- Login ---- */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
  width: 100%;
  max-width: 360px;
}
.login-card h1 {
  margin: 0 0 0.25rem;
  font-size: 1.5rem;
}
.login-card p.sub {
  margin: 0 0 1.5rem;
  color: var(--text-dim);
  font-size: 0.9rem;
}
.field { margin-bottom: 1rem; }
.field label { display: block; font-size: 0.85rem; margin-bottom: 0.35rem; color: var(--text-dim); }
input, select, textarea {
  width: 100%;
  padding: 0.6rem 0.7rem;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.95rem;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
button {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  padding: 0.6rem 1rem;
  font-size: 0.95rem;
  font-weight: 600;
}
.btn-primary { background: var(--accent); color: white; width: 100%; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--panel-2); color: var(--text); border: 1px solid var(--border); }
.btn-danger { background: transparent; color: var(--danger); border: 1px solid var(--danger); }
.error-msg { color: var(--danger); font-size: 0.85rem; margin-top: 0.75rem; min-height: 1.2em; }

/* ---- App shell ---- */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.app-header .brand { font-weight: 700; font-size: 1.1rem; }
.app-nav { display: flex; gap: 1.25rem; align-items: center; }
.app-nav a { color: var(--text-dim); font-weight: 500; padding: 0.3rem 0; border-bottom: 2px solid transparent; }
.app-nav a.active, .app-nav a:hover { color: var(--text); border-bottom-color: var(--accent); }
.app-main { max-width: 1100px; margin: 0 auto; padding: 1.5rem; }
.user-pill { display: flex; align-items: center; gap: 0.75rem; font-size: 0.85rem; color: var(--text-dim); }

/* ---- Dashboard ---- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem;
}
.card .label { color: var(--text-dim); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; }
.card .value { font-size: 1.7rem; font-weight: 700; margin-top: 0.35rem; }
.card .sub-note { font-size: 0.72rem; color: var(--text-dim); margin-top: 0.3rem; }
.card-highlight { border-color: #22c55e; background: linear-gradient(135deg, rgba(34,197,94,0.12), var(--panel) 60%); }
.card-highlight .value { color: #4ade80; }
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}
.panel h2 { margin: 0 0 1rem; font-size: 1.05rem; }

.bar-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.6rem; font-size: 0.85rem; }
.bar-row .bar-label { width: 130px; flex-shrink: 0; color: var(--text-dim); }
.bar-track { flex: 1; background: var(--panel-2); border-radius: 6px; height: 10px; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 6px; }
.bar-row .bar-amount { width: 80px; text-align: right; flex-shrink: 0; }

.list-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.list-item:last-child { border-bottom: none; }
.dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.list-item .name { flex: 1; }
.list-item .date { color: var(--text-dim); font-size: 0.8rem; width: 90px; }
.list-item .amt { width: 80px; text-align: right; font-weight: 600; }
.badge {
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: var(--panel-2);
  color: var(--text-dim);
  border: 1px solid var(--border);
  white-space: nowrap;
}

/* ---- Calendar ---- */
.cal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.cal-header h2 { margin: 0; font-size: 1.2rem; }
.cal-nav { display: flex; gap: 0.5rem; }
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; }
.cal-dow { text-align: center; font-size: 0.75rem; color: var(--text-dim); padding-bottom: 0.4rem; text-transform: uppercase; }
.cal-cell {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  min-height: 90px;
  padding: 0.4rem;
  font-size: 0.75rem;
}
.cal-cell.empty { background: transparent; border-color: transparent; }
.cal-cell .day-num { color: var(--text-dim); margin-bottom: 0.3rem; }
.cal-cell.today .day-num { color: var(--accent); font-weight: 700; }
.cal-event {
  border-radius: 5px;
  padding: 1px 5px;
  margin-bottom: 2px;
  color: white;
  font-size: 0.68rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
}

/* ---- Expenses table ---- */
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
th, td { text-align: left; padding: 0.6rem 0.5rem; border-bottom: 1px solid var(--border); }
th { color: var(--text-dim); font-weight: 600; font-size: 0.75rem; text-transform: uppercase; }
tr:hover td { background: var(--panel-2); }
.cat-chip { display: inline-flex; align-items: center; gap: 0.4rem; }

.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; gap: 1rem; }

/* ---- Modal ---- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6);
  display: flex; align-items: center; justify-content: center; padding: 1rem;
  z-index: 50;
}
.modal {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  width: 100%; max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
}
.modal h2 { margin: 0 0 1rem; font-size: 1.15rem; }
.modal-actions { display: flex; justify-content: flex-end; gap: 0.6rem; margin-top: 1.25rem; }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
.hidden { display: none !important; }
.hist-row { display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem; padding: 0.4rem 0; border-bottom: 1px solid var(--border); }
.hist-row:last-child { border-bottom: none; }