:root{
  --navy:#0f1e3d; --navy2:#16294f; --gold:#facc15; --gold2:#eab308;
  --bg:#f4f6fb; --card:#ffffff; --border:#e2e8f0; --text:#1e293b; --muted:#64748b;
  --green:#16a34a; --red:#dc2626; --orange:#ea580c; --blue:#2563eb;
  --radius:12px; --shadow:0 1px 3px rgba(15,30,61,.08), 0 1px 2px rgba(15,30,61,.06);
}
*{box-sizing:border-box;}
body{margin:0;font-family:'Segoe UI',Arial,sans-serif;background:var(--bg);color:var(--text);}
a{text-decoration:none;color:inherit;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:14px;padding:8px 10px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--text);width:100%;}
label{font-size:12px;color:var(--muted);font-weight:600;margin-bottom:4px;display:block;margin-top:10px;}

/* NAVBAR */
.navbar{background:linear-gradient(135deg,var(--navy),var(--navy2));color:#fff;position:sticky;top:0;z-index:50;box-shadow:var(--shadow);}
.nav-inner{max-width:1400px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:10px 20px;gap:16px;flex-wrap:wrap;}
.nav-left{display:flex;align-items:center;gap:12px;}
.nav-logo{height:36px;width:auto;border-radius:6px;}
.brand-title{font-weight:700;font-size:16px;}
.brand-sub{font-size:11px;color:#cbd5e1;}
.nav-links{display:flex;gap:4px;flex-wrap:wrap;}
.nav-link{padding:8px 12px;border-radius:8px;font-size:13px;font-weight:600;color:#dbe4f7;}
.nav-link:hover{background:rgba(255,255,255,.08);}
.nav-link.active{background:var(--gold);color:var(--navy);}
.nav-right{display:flex;align-items:center;gap:10px;}
.tag-pill{background:rgba(255,255,255,.12);padding:4px 10px;border-radius:999px;font-size:12px;}

/* LAYOUT */
.page{max-width:1400px;margin:0 auto;padding:24px 20px 60px;}
.page-header{display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:12px;margin-bottom:18px;}
.page-title{font-size:22px;font-weight:800;color:var(--navy);}
.page-sub{color:var(--muted);font-size:13px;margin-top:4px;}
.filters{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end;}
.filter-group{display:flex;flex-direction:column;gap:4px;}
.filter-group span{font-size:11px;color:var(--muted);font-weight:600;}

/* CARDS */
.cards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin-bottom:20px;}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 18px;border:1px solid var(--border);}
.card-label{font-size:12px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.03em;}
.card-value{font-size:24px;font-weight:800;color:var(--navy);margin-top:6px;}
.card-meta{font-size:11px;color:var(--muted);margin-top:4px;}
.card-value.pos{color:var(--green);}
.card-value.neg{color:var(--red);}

.chart-section{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border);padding:16px 18px;margin-bottom:20px;}

/* BUTTONS */
.btn-primary{background:var(--navy);color:#fff;border:none;padding:9px 16px;border-radius:8px;font-weight:700;font-size:13px;}
.btn-primary:hover{background:var(--navy2);}
.btn-secondary{background:#fff;color:var(--navy);border:1px solid var(--border);padding:9px 16px;border-radius:8px;font-weight:700;font-size:13px;}
.btn-secondary:hover{background:#f1f5f9;}
.btn-danger{background:#fff;color:var(--red);border:1px solid #fecaca;padding:6px 10px;border-radius:6px;font-size:12px;font-weight:700;}
.btn-gold{background:var(--gold);color:var(--navy);border:none;padding:9px 16px;border-radius:8px;font-weight:800;font-size:13px;}
.btn-pay{background:#dcfce7;color:var(--green);border:1px solid #86efac;padding:5px 10px;border-radius:6px;font-size:12px;font-weight:700;}
.btn-unpay{background:#f1f5f9;color:var(--muted);border:1px solid var(--border);padding:5px 10px;border-radius:6px;font-size:12px;font-weight:700;}
button.small{padding:6px 10px;font-size:12px;}
button:disabled{opacity:.5;cursor:not-allowed;}

/* TABLE */
.table-wrap{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border);overflow-x:auto;}
table{width:100%;border-collapse:collapse;font-size:13px;}
th{background:#f8fafc;text-align:left;padding:10px 12px;font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.03em;border-bottom:1px solid var(--border);white-space:nowrap;}
td{padding:10px 12px;border-bottom:1px solid #f1f5f9;white-space:nowrap;}
tr:last-child td{border-bottom:none;}
tr:hover td{background:#fafbff;}
.badge{padding:3px 9px;border-radius:999px;font-size:11px;font-weight:700;display:inline-block;}
.badge-open{background:#fee2e2;color:var(--red);}
.badge-pending{background:#fef3c7;color:#92400e;}
.badge-closed{background:#dcfce7;color:var(--green);}
.badge-urgency-kritik{background:#fee2e2;color:var(--red);}
.badge-urgency-yuksek{background:#ffedd5;color:var(--orange);}
.badge-urgency-normal{background:#dbeafe;color:var(--blue);}
.badge-urgency-dusuk{background:#f1f5f9;color:var(--muted);}
.row-actions{display:flex;gap:6px;}

.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;flex-wrap:wrap;gap:10px;}
.section-title{font-size:18px;font-weight:800;color:var(--navy);}

/* MODAL */
.modal-overlay{position:fixed;inset:0;background:rgba(15,23,42,.5);display:flex;align-items:center;justify-content:center;z-index:100;padding:20px;}
.modal-box{background:#fff;border-radius:var(--radius);max-width:520px;width:100%;max-height:90vh;overflow-y:auto;padding:22px 24px;box-shadow:0 20px 60px rgba(0,0,0,.3);}
.modal-title{font-size:17px;font-weight:800;color:var(--navy);margin-bottom:4px;}
.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;}

/* TOAST */
.toast{position:fixed;bottom:20px;right:20px;background:var(--navy);color:#fff;padding:12px 18px;border-radius:8px;font-size:13px;box-shadow:var(--shadow);z-index:200;animation:fadeIn .2s;}
.toast.error{background:var(--red);}
.toast.success{background:var(--green);}
@keyframes fadeIn{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}

/* LOGIN */
.login-body{background:linear-gradient(135deg,var(--navy),var(--navy2));min-height:100vh;display:flex;align-items:center;justify-content:center;}
.login-card{background:#fff;border-radius:16px;padding:40px 36px;width:100%;max-width:380px;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.35);}
.login-logo{height:56px;margin-bottom:10px;}
.login-card h1{font-size:20px;color:var(--navy);margin:0;}
.login-sub{color:var(--muted);font-size:13px;margin-bottom:16px;}
.login-card form{text-align:left;}
.login-card .btn-primary{width:100%;margin-top:18px;padding:11px;}
.login-error{color:var(--red);font-size:13px;margin-top:10px;min-height:16px;text-align:center;}

.empty-state{padding:40px;text-align:center;color:var(--muted);font-size:13px;}
.muted{color:var(--muted);}
.text-right{text-align:right;}
.founder-balance-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin-bottom:20px;}

.radio-group{display:flex;gap:20px;margin:10px 0 4px;}
.radio-group label{display:flex;align-items:center;gap:6px;font-weight:600;font-size:13px;color:var(--text);margin-top:0;}
.radio-group input[type="radio"]{width:auto;}

@media (max-width:768px){
  .nav-inner{flex-direction:column;align-items:flex-start;}
  .nav-links{width:100%;overflow-x:auto;}
  .field-row{grid-template-columns:1fr;}
}