:root{
  --bg:#0b1220;
  --panel:#111a2c;
  --card:#0f1a33;
  --text:#e7edf8;
  --muted:#aab7d1;
  --blue:#2563eb;
  --green:#16a34a;
  --border:rgba(255,255,255,.08);
  --shadow: 0 10px 25px rgba(0,0,0,.35);
  --radius:16px;
}

*{box-sizing:border-box}

body{
  margin:0;
  font-family:system-ui, -apple-system, Segoe UI, Roboto, Arial;
  background:linear-gradient(
    180deg,
    #16a34a,   /* kijani juu */
    #065f46    /* kijani chini */
  );
  color:var(--text);
}

a{color:inherit; text-decoration:none}

/* ===== LAYOUT ===== */
.wrap{
  display:flex;
  min-height:100vh;
  background:transparent;
}

/* ===== SIDEBAR (NYEUSI) ===== */
.sidebar{
  width:260px;
  padding:16px;
  background:rgba(17,26,44,.95);
  border-right:1px solid var(--border);
  position:sticky;
  top:0;
  height:100vh;
}

.brand{
  font-weight:800;
  letter-spacing:.5px;
  margin:6px 0 14px;
}

.nav a{
  display:block;
  padding:10px 12px;
  margin:6px 0;
  border-radius:12px;
  color:var(--muted);
  border:1px solid transparent;
}

.nav a:hover{
  background:rgba(255,255,255,.06);
  color:var(--text);
  border-color:var(--border);
}

/* ===== MAIN CONTENT ===== */
.main{
  flex:1;
  padding:18px;
}

/* ===== TOPBAR (NYEUSI) ===== */
.topbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:12px 14px;
  background:rgba(17,26,44,.75);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}

/* ===== GRID & CARDS ===== */
.grid{
  display:grid;
  gap:14px;
  margin-top:14px;
}

.grid.cards{
  grid-template-columns:repeat(4, minmax(0,1fr));
}

.card{
  background:rgba(15,26,51,.9);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:14px;
  box-shadow:var(--shadow);
}

.card h3{
  margin:0 0 6px;
  font-size:14px;
  color:var(--muted);
  font-weight:700;
}

.card .big{
  font-size:22px;
  font-weight:900;
}

/* ===== BUTTONS ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 14px;
  border-radius:14px;
  border:1px solid var(--border);
  cursor:pointer;
  font-weight:800;
}

.btn.primary{
  background:var(--blue);
  border-color:rgba(37,99,235,.35);
}

.btn.success{
  background:var(--green);
  border-color:rgba(22,163,74,.35);
}

.btn.ghost{
  background:transparent;
}

/* ===== TABLE ===== */
.table{
  width:100%;
  border-collapse:collapse;
  margin-top:10px;
  overflow:hidden;
  border-radius:14px;
  border:1px solid var(--border);
  background:rgba(15,26,51,.9);
}

.table th,
.table td{
  padding:10px 12px;
  border-bottom:1px solid var(--border);
}

.table th{
  color:var(--muted);
  text-align:left;
  font-size:13px;
}

/* ===== FORMS ===== */
.input,
select,
textarea{
  width:100%;
  padding:10px 12px;
  border-radius:14px;
  border:1px solid var(--border);
  background:rgba(0,0,0,.25);
  color:var(--text);
}

.form-row{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:12px;
}

/* ===== NOTICES ===== */
.notice{
  margin-top:10px;
  padding:10px 12px;
  border-radius:14px;
  border:1px solid var(--border);
}

.notice.ok{
  background:rgba(22,163,74,.15);
}

.notice.err{
  background:rgba(239,68,68,.15);
}

/* ===== RESPONSIVE ===== */
@media(max-width:980px){
  .wrap{
    flex-direction:column;
  }
  .sidebar{
    width:auto;
    height:auto;
    position:relative;
  }
  .grid.cards{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}

@media(max-width:520px){
  .grid.cards{
    grid-template-columns:1fr;
  }
  .form-row{
    grid-template-columns:1fr;
  }
}