:root{
  --bg: #f3f6f9;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;

  --sidebar: #243447;
  --sideText: rgba(255,255,255,.92);
  --sideMuted: rgba(255,255,255,.55);

  --shadow: 0 8px 24px rgba(15, 23, 42, .08);

  /* KPI colors */
  --kpi-green: #41c7a3;
  --kpi-purple:#a78bfa;
  --kpi-blue:  #4aa3ff;
  --kpi-orange:#f2a07b;

  --ok: #10b981;
  --wait: #f59e0b;
  --bad: #ef4444;
}

*{ box-sizing:border-box; margin:0; padding:0; }
body{
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  background: var(--bg);
  color: var(--text);
}

body.dark{
  --bg: #0b1220;
  --card:#111827;
  --text:#e5e7eb;
  --muted:#94a3b8;
  --line: rgba(255,255,255,.10);
  --shadow: 0 10px 30px rgba(0,0,0,.35);
}

/* TOPBAR */
.topbar{
  height: 56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 0 14px;
  border-bottom: 1px solid var(--line);
  background: #ffffff;
}
body.dark .topbar{ background: #0f172a; }

.topbar-left{ display:flex; align-items:center; gap: 10px; }
.brand{ display:flex; align-items:center; gap:8px; font-weight: 800; }
.brand-logo{ opacity:.85; }
.brand-text{ letter-spacing:.2px; }

.topbar-center{ flex: 1; display:flex; justify-content:center; }
.topbar-title{
  font-size: 24px;
  font-weight: 900;
  letter-spacing: .2px;
}

.topbar-right{ display:flex; align-items:center; gap: 10px; }
.topbar-meta{ font-size: 12px; color: var(--muted); }

.icon-btn{
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text);
  height: 36px;
  padding: 0 10px;
  border-radius: 10px;
  cursor:pointer;
}
.icon-btn:hover{ filter: brightness(0.98); }

.notif{
  position: relative;
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 10px;
  height: 36px;
  display:flex;
  align-items:center;
  padding: 0 10px;
}
.notif-badge{
  position:absolute;
  top: -6px;
  right: -6px;
  background: var(--bad);
  color: white;
  font-size: 11px;
  font-weight: 900;
  min-width: 18px;
  height: 18px;
  border-radius: 999px;
  display:flex;
  align-items:center;
  justify-content:center;
  padding: 0 6px;
}

.avatar{
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 999px;
  height: 36px;
  width: 36px;
  display:flex;
  align-items:center;
  justify-content:center;
}

/* APP LAYOUT */
.app{
  display:grid;
  grid-template-columns: 220px 1fr;
  min-height: calc(100vh - 56px);
}

/* SIDEBAR */
.sidebar{
  background: var(--sidebar);
  color: var(--sideText);
  border-right: 1px solid rgba(255,255,255,.08);
  display:flex;
  flex-direction:column;
  padding: 10px 8px;
  gap: 6px;
}
.sidebar.collapsed{ width: 62px; }

.side-section{
  padding: 10px 10px;
  border-radius: 10px;
  background: rgba(255,255,255,.06);
  margin-bottom: 4px;
}
.side-title{
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .8px;
  color: var(--sideMuted);
  text-transform: uppercase;
}
.side-sub{
  margin-top: 4px;
  font-size: 11px;
  color: var(--sideMuted);
  line-height: 1.3;
}

/* ✅ Yeni sidebar nav — yatay ikonlu, temiz */
.side-nav{
  display:flex;
  flex-direction:column;
  gap: 2px;
  overflow:auto;
}

.side-item{
  width:100%;
  display:flex;
  align-items:center;
  gap: 8px;
  padding: 9px 10px;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--sideText);
  cursor:pointer;
  text-align: left;
  transition: background .12s;
}
.side-item:hover{ background: rgba(255,255,255,.08); }
.side-item.active{
  background: rgba(255,255,255,.14);
}

.side-icon{
  font-size: 16px;
  width: 22px;
  text-align: center;
  flex-shrink: 0;
}

.side-label{
  flex: 1;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.side-pill{
  font-size: 11px;
  font-weight: 800;
  padding: 2px 7px;
  border-radius: 999px;
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.18);
  flex-shrink: 0;
}

.side-footer{ margin-top:auto; padding-top: 8px; }
.side-cta{
  width:100%;
  border: none;
  border-radius: 8px;
  padding: 10px 12px;
  cursor:pointer;
  font-weight: 700;
  font-size: 12px;
  background: rgba(255,255,255,.10);
  color: var(--sideText);
}
.side-cta:hover{ background: rgba(255,255,255,.16); }

/* CONTENT */
.content{ padding: 16px; overflow:auto; }

/* KPI ROW */
.kpi-row{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.kpi{
  border-radius: 6px;
  padding: 14px 16px;
  color: rgba(255,255,255,.96);
  position: relative;
  overflow:hidden;
  box-shadow: var(--shadow);
  min-height: 74px;
}
.kpi .k-title{ font-weight: 900; font-size: 14px; }
.kpi .k-value{ margin-top: 6px; font-weight: 950; font-size: 22px; }
.kpi .k-sub{ margin-top: 6px; font-size: 11px; opacity:.90; }
.kpi .k-ghost{
  position:absolute;
  right: 12px;
  bottom: 8px;
  font-size: 44px;
  opacity: .14;
  user-select:none;
}

.kpi.green{ background: var(--kpi-green); }
.kpi.purple{ background: var(--kpi-purple); }
.kpi.blue{ background: var(--kpi-blue); }
.kpi.orange{ background: var(--kpi-orange); }

/* SECTIONS */
.section-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.card{
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow: var(--shadow);
}
.card-h{
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.card-h .title{ font-weight: 900; font-size: 13px; }
.card-b{ padding: 12px 14px; }

/* Activity list */
.activity{ display:flex; flex-direction:column; gap: 10px; }
.act-row{
  display:flex;
  gap: 10px;
  align-items:flex-start;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.act-ic{
  width: 28px;
  height: 28px;
  border-radius: 999px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight: 900;
  color: white;
}
.act-ic.blue{ background: #60a5fa; }
.act-ic.green{ background: #34d399; }
.act-ic.orange{ background: #fb923c; }
.act-ic.red{ background: #fb7185; }
.act-t{ font-weight: 850; font-size: 13px; }
.act-d{ margin-top: 3px; color: var(--muted); font-size: 12px; line-height: 1.3; }
.act-time{ margin-top: 5px; color: var(--muted); font-size: 11px; }

/* Table */
.table{ width:100%; border-collapse: collapse; }
.table th, .table td{
  text-align:left;
  font-size: 12px;
  padding: 10px 8px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.table th{ color: var(--muted); font-weight: 900; font-size: 11px; }
.small{ font-size: 11px; color: var(--muted); margin-top: 4px; }

.tag{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 900;
  border: 1px solid var(--line);
  background: rgba(0,0,0,.03);
}
body.dark .tag{ background: rgba(255,255,255,.06); }
.tag.ok{ color: var(--ok); border-color: rgba(16,185,129,.35); }
.tag.wait{ color: var(--wait); border-color: rgba(245,158,11,.35); }
.tag.bad{ color: var(--bad); border-color: rgba(239,68,68,.35); }

.row-actions{ display:flex; gap: 6px; flex-wrap:wrap; }
.btn{
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text);
  border-radius: 8px;
  padding: 6px 8px;
  font-size: 11px;
  font-weight: 900;
  cursor:pointer;
}
.btn:hover{ filter: brightness(0.98); }
.btn.ok{ border-color: rgba(16,185,129,.35); }
.btn.bad{ border-color: rgba(239,68,68,.35); }
.btn.primary{ border-color: rgba(59,130,246,.35); }

.focus-ring{
  outline: 2px solid rgba(59,130,246,.55);
  box-shadow: 0 0 0 6px rgba(59,130,246,.10);
}

/* MODAL */
.modal-overlay{
  display:none;
  position:fixed;
  inset:0;
  background: rgba(0,0,0,.55);
  z-index: 80;
}
.modal{
  display:none;
  position:fixed;
  left:50%;
  top:50%;
  transform: translate(-50%,-50%);
  width: min(720px, 92vw);
  max-height: 82vh;
  overflow:auto;
  z-index: 90;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 24px 80px rgba(0,0,0,.30);
}
.modal-head{
  position: sticky;
  top: 0;
  padding: 12px 14px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  border-bottom: 1px solid var(--line);
  background: var(--card);
}
.modal-title{ font-weight: 950; }
.modal-body{ padding: 12px 14px; color: var(--text); }
.modal-actions{
  padding: 12px 14px;
  border-top: 1px solid var(--line);
  display:flex;
  gap: 10px;
  flex-wrap:wrap;
}


/* KATALOG */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
  padding: 4px 0;
}

.product-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px;
  background: var(--card);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: box-shadow .15s;
}
.product-card:hover { box-shadow: var(--shadow); }

.product-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
}
.product-name {
  font-weight: 800;
  font-size: 13px;
  line-height: 1.3;
  flex: 1;
}
.product-price {
  font-weight: 900;
  font-size: 14px;
  color: var(--ok);
  white-space: nowrap;
}
.product-color {
  font-size: 12px;
  color: var(--muted);
}
.product-features {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}
.feature-tag {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(99,102,241,.08);
  border: 1px solid rgba(99,102,241,.2);
  color: #6366f1;
  font-weight: 600;
}
body.dark .feature-tag {
  background: rgba(99,102,241,.15);
  border-color: rgba(99,102,241,.3);
}
.product-actions {
  display: flex;
  gap: 6px;
  margin-top: auto;
  padding-top: 4px;
  border-top: 1px solid var(--line);
}

/* RESPONSIVE */
@media (max-width: 1100px){
  .kpi-row{ grid-template-columns: repeat(2, 1fr); }
  .section-grid{ grid-template-columns: 1fr; }
  .app{ grid-template-columns: 200px 1fr; }
}
@media (max-width: 820px){
  .app{ grid-template-columns: 1fr; }
  .sidebar{ display:none; }
  .topbar-title{ font-size: 18px; }
}