:root {
  --navy: #1a3a5c;
  --navy-dark: #122a44;
  --accent: #e8a33d;
  --bg: #f4f6f9;
  --card: #ffffff;
  --text: #1f2933;
  --muted: #6b7a8c;
  --border: #dde3ea;
  --green: #1e7d4f;
  --red: #b3372e;
  --amber: #9a6b0a;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg); color: var(--text); font-size: 15px;
}
a { color: var(--navy); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Layout */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 220px; background: var(--navy); color: #fff; flex-shrink: 0;
  display: flex; flex-direction: column;
}
.sidebar .brand {
  padding: 18px 16px; font-weight: 700; font-size: 17px;
  background: var(--navy-dark); letter-spacing: .3px;
}
.sidebar .brand small { display: block; font-weight: 400; font-size: 11px; color: #9fb3c8; }
.sidebar nav { flex: 1; padding: 8px 0; }
.sidebar nav a {
  display: block; padding: 10px 16px; color: #d7e0ea; font-size: 14px;
}
.sidebar nav a:hover { background: rgba(255,255,255,.08); text-decoration: none; }
.sidebar nav a.active { background: rgba(255,255,255,.14); color: #fff; border-left: 3px solid var(--accent); padding-left: 13px; }
.sidebar .userbox { padding: 12px 16px; background: var(--navy-dark); font-size: 13px; }
.sidebar .userbox .name { font-weight: 600; }
.sidebar .userbox .role { color: #9fb3c8; font-size: 12px; }
.sidebar .userbox a { color: var(--accent); font-size: 12px; }

.main { flex: 1; padding: 24px 28px; max-width: 1200px; }
h1 { font-size: 22px; margin: 0 0 18px; }
h2 { font-size: 16px; margin: 0 0 10px; }

/* Cards & stats */
.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 18px; margin-bottom: 18px; }
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; margin-bottom: 18px; }
.stat { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; }
.stat .label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; }
.stat .value { font-size: 24px; font-weight: 700; margin-top: 4px; }
.stat.warn .value { color: var(--red); }

/* Tables */
table { width: 100%; border-collapse: collapse; background: var(--card); }
th, td { padding: 9px 10px; text-align: left; border-bottom: 1px solid var(--border); font-size: 14px; }
th { background: #eef2f6; font-size: 12px; text-transform: uppercase; letter-spacing: .3px; color: var(--muted); }
tr:hover td { background: #f8fafc; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

/* Badges */
.badge { display: inline-block; padding: 2px 9px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge.green { background: #e2f3ea; color: var(--green); }
.badge.red { background: #fae5e3; color: var(--red); }
.badge.amber { background: #fdf1d8; color: var(--amber); }
.badge.gray { background: #e8edf2; color: var(--muted); }
.badge.blue { background: #e1ecf7; color: var(--navy); }

/* Forms */
label { display: block; font-size: 13px; font-weight: 600; margin: 10px 0 4px; color: #33404d; }
input, select, textarea {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: 7px;
  font-size: 14px; font-family: inherit; background: #fff;
}
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(26,58,92,.25); border-color: var(--navy); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 18px; }
.form-grid .full { grid-column: 1 / -1; }
.btn {
  display: inline-block; padding: 9px 18px; border-radius: 7px; border: none;
  background: var(--navy); color: #fff; font-size: 14px; font-weight: 600;
  cursor: pointer; margin-top: 14px;
}
.btn:hover { background: var(--navy-dark); }
.btn.secondary { background: #e8edf2; color: var(--text); }
.btn.danger { background: var(--red); }
.btn.green { background: var(--green); }
.btn.small { padding: 5px 12px; font-size: 13px; margin-top: 0; }

/* Flash messages */
.flash { padding: 11px 14px; border-radius: 8px; margin-bottom: 14px; font-size: 14px; }
.flash.success { background: #e2f3ea; color: var(--green); border: 1px solid #bfe3d0; }
.flash.error { background: #fae5e3; color: var(--red); border: 1px solid #f0c4c0; }
.flash.info { background: #e1ecf7; color: var(--navy); border: 1px solid #c3d8ec; }

/* Toolbar */
.toolbar { display: flex; gap: 10px; align-items: center; margin-bottom: 14px; flex-wrap: wrap; }
.toolbar form { display: flex; gap: 8px; align-items: center; }
.toolbar input, .toolbar select { width: auto; }
.toolbar .spacer { flex: 1; }

/* Login */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--navy); }
.login-box { background: #fff; padding: 34px; border-radius: 12px; width: 360px; }
.login-box h1 { text-align: center; color: var(--navy); font-size: 20px; }
.login-box .sub { text-align: center; color: var(--muted); font-size: 13px; margin-bottom: 12px; }

/* Item rows (satış / talep satırları) */
.item-table input, .item-table select { margin: 0; }
.item-table td { padding: 5px 6px; }
.row-del { color: var(--red); cursor: pointer; font-weight: 700; padding: 0 8px; background: none; border: none; font-size: 16px; }

.muted { color: var(--muted); font-size: 13px; }
.mt0 { margin-top: 0; }

/* Mobile */
@media (max-width: 800px) {
  .layout { flex-direction: column; }
  .sidebar { width: 100%; flex-direction: row; flex-wrap: wrap; align-items: center; }
  .sidebar .brand { flex: 1 1 100%; padding: 12px 16px; }
  .sidebar nav { display: flex; flex-wrap: wrap; padding: 0; }
  .sidebar nav a { padding: 9px 12px; font-size: 13px; }
  .sidebar nav a.active { border-left: none; border-bottom: 2px solid var(--accent); padding-left: 12px; }
  .sidebar .userbox { flex: 1 1 100%; display: flex; gap: 10px; align-items: baseline; }
  .main { padding: 14px; }
  .form-grid { grid-template-columns: 1fr; }
  table { font-size: 13px; }
  th, td { padding: 7px 6px; }
}