:root {
  --navy: #2E4057;
  --teal: #048A81;
  --teal2: #05a89e;
  --red: #C0392B;
  --green: #1A7A4A;
  --gray: #6c757d;
  --border: #d1dde9;
  --bg: #f0f4f8;
  --sidebar-w: 220px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Segoe UI', system-ui, sans-serif; background: var(--bg); color: #1a2332; }

/* ─── Layout ─── */
.layout { display: flex; min-height: 100vh; }

/* ─── Sidebar ─── */
.sidebar {
  width: var(--sidebar-w); background: var(--navy); color: #fff;
  display: flex; flex-direction: column; position: fixed; top: 0; left: 0; bottom: 0;
  z-index: 200; transition: transform .25s;
}
.sidebar-logo {
  padding: 20px 18px 16px; border-bottom: 1px solid rgba(255,255,255,.12);
}
.sidebar-logo h2 { font-size: .95rem; font-weight: 700; color: #7ee8e4; letter-spacing: .5px; }
.sidebar-logo p { font-size: .75rem; opacity: .6; margin-top: 2px; }
.sidebar-nav { flex: 1; padding: 12px 0; overflow-y: auto; }
.nav-group { padding: 8px 0 0; }
.nav-label {
  font-size: .68rem; text-transform: uppercase; letter-spacing: 1px;
  color: rgba(255,255,255,.4); padding: 6px 18px 4px;
}
.nav-link {
  display: flex; align-items: center; gap: 10px; padding: 9px 18px;
  color: rgba(255,255,255,.75); text-decoration: none; font-size: .87rem;
  transition: background .15s, color .15s; border-left: 3px solid transparent;
}
.nav-link:hover { background: rgba(255,255,255,.08); color: #fff; }
.nav-link.active { background: rgba(4,138,129,.25); color: #7ee8e4; border-left-color: var(--teal); }
.nav-link .icon { font-size: 1rem; width: 20px; text-align: center; }
.nav-label { cursor: pointer; user-select: none; display: flex; align-items: center; justify-content: space-between; }
.nav-label::after { content: '▾'; font-size: .7rem; opacity: .5; transition: transform .22s; }
.nav-group.collapsed .nav-label::after { transform: rotate(-90deg); }
.nav-items { overflow: hidden; transition: max-height .25s ease; }
.nav-sublabel {
  font-size: .65rem; text-transform: uppercase; letter-spacing: .8px;
  color: rgba(255,255,255,.28); padding: 8px 18px 3px 30px;
}
.nav-sublink { padding-left: 30px; font-size: .82rem; color: rgba(255,255,255,.6); }

/* ─── Main Content ─── */
.main { margin-left: var(--sidebar-w); flex: 1; display: flex; flex-direction: column; min-height: 100vh; }
.topbar {
  background: #fff; padding: 14px 28px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 8px rgba(0,0,0,.05);
}
.topbar h1 { font-size: 1.1rem; font-weight: 700; color: var(--navy); }
.topbar .sub { font-size: .8rem; color: #888; }
.content { padding: 24px 28px; flex: 1; }

/* ─── Flash messages ─── */
.flash-list { margin-bottom: 18px; }
.flash { padding: 10px 16px; border-radius: 8px; font-size: .87rem; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
.flash.success { background: #d4edda; color: #1a6e30; border: 1px solid #c3e6cb; }
.flash.error   { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }
.flash.warning { background: #fff3cd; color: #856404; border: 1px solid #ffeeba; }
.flash.info    { background: #d1ecf1; color: #0c5460; border: 1px solid #bee5eb; }

/* ─── KPI Cards ─── */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin-bottom: 24px; }
.card {
  background: #fff; border-radius: 10px; padding: 18px 16px;
  box-shadow: 0 2px 10px rgba(0,0,0,.06); border-left: 4px solid var(--teal);
  transition: transform .15s, box-shadow .15s;
}
.card:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(0,0,0,.1); }
.card.red   { border-left-color: var(--red); }
.card.green { border-left-color: var(--green); }
.card.navy  { border-left-color: var(--navy); }
.card .lbl  { font-size: .73rem; color: #888; text-transform: uppercase; letter-spacing: .5px; margin-bottom: 6px; }
.card .val  { font-size: 1.7rem; font-weight: 700; color: var(--navy); line-height: 1; }
.card .val.red   { color: var(--red); }
.card .val.green { color: var(--green); }
.card .sub  { font-size: .76rem; color: #aaa; margin-top: 4px; }
.card-hdr {
  font-weight: 700; font-size: 1rem; color: #2E4057;
  padding: 16px 20px 12px; border-bottom: 1px solid #eee; margin-bottom: 0;
}

/* ─── Section header ─── */
.section-head {
  display: flex; align-items: center; justify-content: space-between;
  margin: 0 0 14px; border-bottom: 2px solid var(--teal); padding-bottom: 8px;
}
.section-head h2 { font-size: .95rem; font-weight: 700; color: var(--navy); }

/* ─── Toolbar ─── */
.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.search {
  padding: 8px 14px; border: 1.5px solid var(--border); border-radius: 8px;
  font-size: .85rem; width: 240px; outline: none; transition: border .2s;
  background: #fff;
}
.search:focus { border-color: var(--teal); }
select.filter {
  padding: 8px 12px; border: 1.5px solid var(--border); border-radius: 8px;
  font-size: .85rem; outline: none; cursor: pointer; background: #fff;
}
.tag { font-size: .8rem; color: #888; margin-left: auto; }

/* ─── Buttons ─── */
.btn { padding: 8px 16px; border-radius: 8px; border: none; cursor: pointer; font-size: .84rem; font-weight: 600; text-decoration: none; display: inline-block; transition: opacity .15s; }
.btn-teal  { background: var(--teal); color: #fff; }
.btn-teal:hover { background: var(--teal2); }
.btn-navy  { background: var(--navy); color: #fff; }
.btn-navy:hover { opacity: .85; }
.btn-red   { background: var(--red); color: #fff; }
.btn-red:hover { opacity: .85; }
.btn-sm    { padding: 5px 11px; font-size: .78rem; }
.btn-outline { background: #fff; border: 1.5px solid var(--border); color: var(--navy); }
.btn-outline:hover { border-color: var(--teal); color: var(--teal); }

/* ─── Table ─── */
.tbl-wrap { overflow-x: auto; border-radius: 10px; box-shadow: 0 2px 10px rgba(0,0,0,.07); }
table { width: 100%; border-collapse: collapse; font-size: .83rem; background: #fff; }
thead th {
  background: var(--navy); color: #fff; padding: 10px 12px;
  text-align: left; font-weight: 600; white-space: nowrap;
}
thead th a { color: #fff; text-decoration: none; }
tbody tr { border-bottom: 1px solid #eef2f7; transition: background .1s; }
tbody tr:hover { background: #f0fffe; }
tbody tr:nth-child(even) { background: #f8fafc; }
tbody tr:nth-child(even):hover { background: #e8f9f8; }
td { padding: 8px 12px; vertical-align: middle; }
td.num { text-align: right; font-family: 'Consolas', monospace; font-size: .82rem; }
td.center { text-align: center; }
.pos { color: var(--green); font-weight: 600; }
.neg { color: var(--red); font-weight: 600; }
.chip { display: inline-block; padding: 2px 9px; border-radius: 12px; font-size: .74rem; font-weight: 600; }
.chip-alis   { background: #dff0d8; color: #276221; }
.chip-satis  { background: #fce8e6; color: #912b22; }
.chip-adet   { background: #e8f4fd; color: #1a6496; }
.chip-taslak { background: #fff3cd; color: #856404; }
.chip-gonderildi { background: #d4edda; color: #1a6e30; }

/* ─── Pagination ─── */
.pager { display: flex; align-items: center; gap: 6px; margin-top: 14px; flex-wrap: wrap; }
.pager a, .pager span {
  padding: 5px 11px; border: 1.5px solid var(--border); border-radius: 6px;
  font-size: .82rem; text-decoration: none; color: var(--navy); background: #fff;
}
.pager a:hover { border-color: var(--teal); color: var(--teal); }
.pager .cur { background: var(--teal); color: #fff; border-color: var(--teal); }
.pager .disabled { opacity: .4; pointer-events: none; }
.page-info { font-size: .8rem; color: #888; margin-left: auto; }

/* ─── Form ─── */
.form-card { background: #fff; border-radius: 10px; padding: 24px; box-shadow: 0 2px 10px rgba(0,0,0,.07); max-width: 700px; }
.form-row { margin-bottom: 16px; }
.form-row label { display: block; font-size: .82rem; font-weight: 600; color: #555; margin-bottom: 5px; }
.form-row input, .form-row select, .form-row textarea {
  width: 100%; padding: 9px 12px; border: 1.5px solid var(--border); border-radius: 8px;
  font-size: .87rem; outline: none; transition: border .2s;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { border-color: var(--teal); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-actions { display: flex; gap: 10px; margin-top: 20px; }

/* ─── Grid section ─── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 24px; }
.panel { background: #fff; border-radius: 10px; padding: 18px; box-shadow: 0 2px 10px rgba(0,0,0,.06); }
.panel h3 { font-size: .9rem; font-weight: 700; color: var(--navy); margin-bottom: 14px;
  border-bottom: 2px solid var(--teal); padding-bottom: 8px; }

/* ─── Log ─── */
.log-item { padding: 6px 0; border-bottom: 1px solid #f0f0f0; font-size: .8rem; color: #555; }
.log-item .ts { color: #aaa; font-family: monospace; font-size: .74rem; margin-right: 8px; }
.log-item.sync .ts { color: var(--teal); }
.log-item.error .ts { color: var(--red); }

/* ─── Number input — hide spinners ─── */
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
input[type=number] { -moz-appearance: textfield; appearance: textfield; }

/* ─── CS Searchable Select ─── */
.cs-wrap  { }
.cs-inp   { width: 100%; }
.cs-dd    {
  display: none; position: fixed; z-index: 9999;
  background: #fff; border: 1px solid #b0c4de; border-radius: 6px;
  max-height: 230px; overflow-y: auto; box-shadow: 0 6px 20px rgba(0,0,0,.16);
}
.cs-opt   {
  padding: 7px 13px; cursor: pointer; font-size: .83rem;
  border-bottom: 1px solid #f0f4f8; white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
}
.cs-opt:hover, .cs-opt.active { background: #dbeafe; color: #1d4ed8; }
.cs-none  { padding: 8px 13px; color: #aaa; font-size: .82rem; }

/* ─── Responsive ─── */
.hamburger { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main { margin-left: 0; }
  .hamburger { display: block; }
  .grid-2 { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .search { width: 100%; }
}