/* Professional monochrome UI — compact, clean, contrast-forward */
:root{
  --bg:#0f0f10;
  --panel:#141416;
  --muted:#9aa0a6;
  --accent:#ffffff;
  --soft:#202022;
  --glass:rgba(255,255,255,0.03);
  --radius:10px;
  --card-shadow: 0 8px 20px rgba(0,0,0,0.6);
  --btn-shadow: 0 6px 14px rgba(0,0,0,0.45);
  --max-width:1100px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: Inter, "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial;
  background:var(--bg);
  color:var(--accent);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  display:flex;
  min-height:100vh;
  flex-direction:column;
}

/* Header */
.site-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:18px 28px;
  border-bottom:1px solid #19191b;
  background:linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
}
.brand{display:flex;align-items:center;gap:12px}
.logo{
  width:40px;height:40px;border-radius:8px;background:#fff;color:#000;display:flex;
  align-items:center;justify-content:center;font-weight:700;font-family:monospace;
}
.title{font-weight:600;letter-spacing:0.2px}

/* Buttons */
.btn{
  background:#fff;color:#000;border:none;padding:9px 14px;border-radius:8px;cursor:pointer;
  font-weight:600;box-shadow:var(--btn-shadow);
}
.btn.ghost{background:transparent;color:var(--accent);border:1px solid #272729;box-shadow:none}
.btn.small{padding:6px 8px;font-size:0.9rem}
.btn.full{width:100%}

/* Header auth area */
.header-actions{display:flex;gap:10px;align-items:center}
.profile-dropdown{position:relative}
.profile-btn{
  width:44px;height:44px;border-radius:10px;background:var(--soft);border:none;color:var(--accent);
  display:flex;align-items:center;justify-content:center;font-weight:700;cursor:pointer
}
.profile-menu{
  position:absolute;right:0;top:54px;background:var(--panel);border-radius:10px;padding:8px;
  box-shadow:var(--card-shadow);min-width:170px;display:flex;flex-direction:column;gap:6px;
}
.pm-item{background:transparent;border:none;color:var(--accent);text-align:left;padding:8px;border-radius:8px;cursor:pointer;font-weight:600}
.pm-item:hover{background:var(--glass)}

/* Layout */
.container{
  width:100%;max-width:var(--max-width);margin:28px auto;display:grid;grid-template-columns:320px 1fr;gap:20px;padding:0 20px;
}
.left-col{display:flex;flex-direction:column;gap:16px}
.right-col{display:flex;flex-direction:column;gap:16px}

/* Card */
.card{background:var(--panel);padding:18px;border-radius:var(--radius);box-shadow:var(--card-shadow)}
.stat-card{display:flex;flex-direction:column;gap:6px;text-align:left}
.stat-label{color:var(--muted);font-size:0.9rem}
.stat-value{font-size:1.6rem;font-weight:700}

/* Row stats */
.stat-row{display:flex;justify-content:space-between;gap:12px;padding:12px}
.stat-row .small{font-size:1rem}

/* Chart card */
.chart-card{display:flex;align-items:center;justify-content:center;padding:18px}

/* Payment */
.payment-card input{width:100%;padding:10px;border-radius:8px;border:1px solid #222;background:transparent;color:var(--accent);margin:8px 0}
.payment-card .muted{color:var(--muted);margin:6px 0 10px}

/* Form */
.form-card .form-header{display:flex;justify-content:space-between;align-items:center;gap:12px}
.form-card input, .form-card select{padding:10px;border-radius:8px;border:1px solid #222;background:transparent;color:var(--accent);width:100%}
.form-grid{display:grid;grid-template-columns:1fr 150px 140px;gap:12px;align-items:end}
.controls{display:flex;gap:8px;align-items:center}
.controls input{width:220px;padding:8px;border-radius:8px}

/* Transaction list */
.list-card .transaction-list{list-style:none;margin:0;padding:0;max-height:420px;overflow:auto}
.transaction-row{display:flex;justify-content:space-between;gap:12px;padding:12px;border-bottom:1px solid #171718;align-items:center}
.transaction-left{display:flex;flex-direction:column}
.transaction-desc{font-weight:600}
.transaction-meta{font-size:0.85rem;color:var(--muted)}
.transaction-amount{font-weight:700}
.transaction-amount.income{color:#16a34a}
.transaction-amount.expense{color:#ef4444}
.tr-actions{display:flex;gap:8px}

/* Modal */
.modal{position:fixed;inset:0;background:rgba(0,0,0,0.6);display:flex;align-items:center;justify-content:center;padding:20px;z-index:60}
.modal-panel{background:var(--panel);padding:18px;border-radius:12px;min-width:320px;max-width:420px;position:relative}
.modal.hidden{display:none}
.modal-close{position:absolute;right:10px;top:10px;background:transparent;border:none;color:var(--muted);font-size:18px;cursor:pointer}
.modal .pw-row{display:flex;gap:8px;align-items:center}
.modal input{width:100%;padding:10px;border-radius:8px;border:1px solid #222;background:transparent;color:var(--accent);margin:8px 0}

/* Footer */
.site-footer{text-align:center;padding:18px;margin-top:auto;color:var(--muted);font-size:0.9rem;border-top:1px solid #171717}

/* Utilities */
.hidden{display:none}
.muted{color:var(--muted)}
.small{font-size:0.9rem}

/* Responsive */
@media (max-width: 900px){
  .container{grid-template-columns:1fr;padding:0 12px}
  .form-grid{grid-template-columns:1fr;align-items:stretch}
  .controls input{width:140px}
}