:root{
  /* Light, calm Sonoma/Tahoe palette */
  --bg: #f6f7fb; /* page background */
  --panel: #ffffff; /* cards */
  --panel2: #fbfcfe; /* inner cards */
  --border: rgba(15,23,42,0.08);
  --text: #0f172a; /* slate-900 */
  --muted: #475569; /* slate-600 */
  --muted2: #64748b; /* slate-500 */
  --accent: #3b82f6; /* blue-500 */
  --accent2: #60a5fa; /* blue-400 */
  --accentBg: #eef5ff; /* soft blue bg for headers */
  --accentSoft: #f4f8ff; /* softer tint */
  --success: #10b981; /* emerald-500 */
  --warning: #f59e0b; /* amber-500 */
  --danger: #ef4444; /* red-500 */
  /* Sidebar menu gradient colors (requested) */
  --navDark: #242b55;
  --navLight: #8896cf;
  /* Reference gradient palette (image-inspired) */
  --gradBlue1: #6aa8ff;
  --gradBlue2: #8ec1ff;
  --gradBlue3: #a9d0ff;
  --shadow: 0 10px 24px rgba(2,6,23,0.08);
  --radius: 18px;
  --radius2: 22px;
  --sidebarW: 280px;
  --topbarH: 64px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
}

/* Layout */
.app-shell{
  min-height:100vh;
  display:grid;
  grid-template-columns: var(--sidebarW) 1fr;
}

.sidebar{
  position:sticky; top:0;
  height:100vh;
  padding:16px;
  border-right: 1px solid rgba(136,150,207,0.40);
  background: linear-gradient(135deg, var(--navDark) 0%, var(--navLight) 100%);
}

.main{
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

.topbar{
  height: var(--topbarH);
  display:flex;
  align-items:center;
  gap:12px;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(59,130,246,0.14);
  background: linear-gradient(180deg, #ffffff 0%, #eaf2ff 35%, #dbe9ff 100%);
}

.content{
  padding: 18px;
  max-width: 1200px;
  width:100%;
}

/* Sidebar */
.brand{
  display:flex;
  gap:12px;
  align-items:center;
  padding:12px 12px 18px 12px;
}
.logo{
  width:42px; height:42px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--gradBlue1) 0%, var(--gradBlue2) 50%, var(--gradBlue3) 100%);
  box-shadow: var(--shadow);
}
.brand h1{
  font-size:14px; margin:0;
  line-height:1.1;
  color: #f5f7ff;
}
.brand .sub{
  display:block;
  font-size:12px;
  color: rgba(255,255,255,0.85);
  margin-top:2px;
}

.nav{
  margin-top: 6px;
  display:flex;
  flex-direction:column;
  gap:6px;
}
.nav a{
  display:flex;
  align-items:center;
  gap:10px;
  padding: 10px 12px;
  border-radius: 14px;
  text-decoration:none;
  color: #eef2ff;
  border: 1px solid transparent;
  position: relative;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
}
.nav a:hover{
  background: linear-gradient(90deg, var(--navDark) 0%, var(--navLight) 100%);
  border-color: rgba(136,150,207,0.55);
  color: #ffffff;
}
.nav a.active{
  background: linear-gradient(90deg, var(--navDark) 0%, var(--navLight) 100%);
  border-color: rgba(136,150,207,0.70);
  box-shadow: 0 0 0 1px rgba(136,150,207,0.36) inset;
  color: #ffffff;
}
.nav a.active::before{
  content: '';
  position: absolute;
  left: -1px; top: 6px; bottom: 6px;
  width: 4px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--navLight), #a9b3e6);
  box-shadow: 0 2px 8px rgba(59,130,246,0.25);
}
.nav a:hover .icon{ color: #ffffff; }
.icon{
  width:18px; height:18px;
  display:inline-grid; place-items:center;
  color: rgba(255,255,255,0.88);
}
.nav a.active .icon{ color: #ffffff; }
.nav .label{ font-size: 13px; }
.nav .hint{
  margin-left:auto;
  font-size:11px;
  color: rgba(255,255,255,0.80);
}

/* Cards + KPIs */
.grid{
  display:grid;
  gap: 14px;
}
.grid.kpis{ grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid.two{ grid-template-columns: 1.2fr 0.8fr; }

.card{
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  box-shadow: var(--shadow);
}
.card .hd{
  padding: 14px 16px;
  border-bottom: 1px solid rgba(59,130,246,0.12);
  display:flex;
  align-items:center;
  justify-content:space-between;
  background: linear-gradient(180deg, #ffffff 0%, #eef5ff 50%, #e6f1ff 100%);
}
.card .hd h2{
  font-size: 14px;
  margin:0;
  color: var(--text);
}
.card .bd{ padding: 16px; }

/* Toolbar for filter/search areas */
.toolbar{
  display:grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
  align-items: end;
}
.toolbar .field{
  display:flex; flex-direction:column; gap:6px;
}
.toolbar .label{ font-size:12px; color: var(--muted); }
.toolbar .actions{ display:flex; gap:8px; align-items:center; }

@media (max-width: 980px){
  .toolbar{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

.kpi{
  padding: 14px 16px;
}
.kpi .k-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  color: var(--muted);
  font-size: 12px;
}
.kpi .k-val{
  margin-top: 10px;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
}
.kpi .k-sub{
  margin-top: 6px;
  font-size: 12px;
  color: var(--muted);
}

/* Table */
.table-wrap{ overflow:auto; }
table{
  width:100%;
  border-collapse: collapse;
  min-width: 760px;
}
th,td{
  padding: 12px 12px;
  border-bottom: 1px solid rgba(15,23,42,0.06);
  font-size: 13px;
  text-align:left;
}
th{ color: var(--muted); font-weight:600; }
tr:hover td{ background: #f0f5ff; }

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  border: 1px solid rgba(15,23,42,0.08);
  background: #f3f6fb;
  color: var(--text);
  padding: 10px 12px;
  border-radius: 14px;
  text-decoration:none;
  cursor:pointer;
  font-size: 13px;
}
.btn:hover{ background: #eef2f9; }
.btn.primary{
  background: linear-gradient(90deg, #3b82f6 0%, #4f8ef7 40%, #60a5fa 100%);
  border-color: rgba(59,130,246,0.40);
  color: #ffffff;
}
.btn.primary:hover{ background: linear-gradient(90deg, #2f6fe0 0%, #3f7bee 40%, #5197f7 100%); }
.btn.danger{
  background: rgba(239,68,68,0.10);
  border-color: rgba(239,68,68,0.22);
  color: #7a1b1b;
}
.pill{
  display:inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid rgba(15,23,42,0.10);
  background: #f3f4f6;
  color: #334155;
}

/* Inputs */
.input{
  width:100%;
  background: #ffffff;
  border: 1px solid rgba(15,23,42,0.10);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 14px;
  outline:none;
}
.input:focus{
  border-color: rgba(59,130,246,0.45);
  box-shadow: 0 0 0 4px rgba(59,130,246,0.16);
}

/* Status badges (light theme) */
.pill.status-planned{ background: #f1f5f9; border-color: rgba(15,23,42,0.10); color: #475569; }
.pill.status-ready{ background: #e9f6f2; border-color: rgba(16,185,129,0.20); color:#14532d; }
.pill.status-approved{ background: #eaf2ff; border-color: rgba(59,130,246,0.20); color:#0f2a5a; }
.pill.status-deployed{ background: #edf7ff; border-color: rgba(59,130,246,0.22); color:#0f2a5a; }
.pill.status-on_hold{ background: #fff7e6; border-color: rgba(234,179,8,0.22); color:#7a5a12; }

/* Subtle accent utility */
.accent{ background: var(--accentBg) !important; }
.accent-soft{ background: var(--accentSoft) !important; }

/* Mobile sidebar drawer */
.mobile-btn{ display:none; }
.overlay{ display:none; }

@media (max-width: 980px){
  .app-shell{ grid-template-columns: 1fr; }
  .sidebar{
    position:fixed;
    left:0; top:0;
    width: min(var(--sidebarW), 88vw);
    transform: translateX(-105%);
    transition: transform .2s ease;
    z-index: 50;
  }
  body.sidebar-open .sidebar{ transform: translateX(0); }
  .overlay{
    display:block;
    position:fixed; inset:0;
    background: rgba(0,0,0,0.45);
    opacity:0; pointer-events:none;
    transition: opacity .2s ease;
    z-index: 40;
  }
  body.sidebar-open .overlay{
    opacity:1; pointer-events:auto;
  }
  .mobile-btn{ display:inline-flex; }
  .grid.kpis{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid.two{ grid-template-columns: 1fr; }
  table{ min-width: 680px; }
}