:root{
  --primary:#2563eb;
  --primary-hover:#1d4ed8;
  --primary-soft:#e0ecff;

  --danger:#ef4444;
  --danger-hover:#dc2626;

  --success:#22c55e;
  --warning:#f59e0b;

  --dark:#0f172a;
  --gray:#64748b;
  --border:#e2e8f0;
  --bg:#f8fafc;

  --radius:12px;
  --transition:all .25s ease;
}

*{
  box-sizing:border-box;
  font-family:'Inter',sans-serif;
}

body{
  margin:0;
  background:var(--bg);
  color:var(--dark);
}

/* ================= HEADER ================= */

.header{
  height:70px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:0 5%;
  background:#fff;
  border-bottom:1px solid var(--border);
}

.logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:18px;
  color:var(--primary);
}

.logo img{
  height:32px;
}

.user-plan{
  background:linear-gradient(135deg,var(--primary),#60a5fa);
  color:#fff;
  padding:6px 14px;
  border-radius:20px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.3px;
  box-shadow:0 3px 10px rgba(37,99,235,0.2);
}

/* ================= LAYOUT ================= */

.layout{
  display:flex;
  min-height:calc(100vh - 70px);
}

/* ================= SIDEBAR ================= */

.sidebar{
  width:220px;
  background:#fff;
  border-right:1px solid var(--border);
  padding:25px 18px;
}

.sidebar a{
  display:block;
  padding:12px 14px;
  text-decoration:none;
  color:var(--gray);
  border-radius:10px;
  margin-bottom:8px;
  font-weight:500;
  transition:var(--transition);
}

.sidebar a:hover{
  background:var(--primary-soft);
  color:var(--primary);
}

.sidebar .active{
  background:linear-gradient(135deg,var(--primary),#60a5fa);
  color:#fff;
  font-weight:600;
  box-shadow:0 5px 14px rgba(37,99,235,0.25);
}

/* ================= MAIN ================= */

.main{
  flex:1;
  padding:40px 50px;
}

/* ================= CARDS ================= */

.card{
  background:#fff;
  padding:30px;
  border-radius:var(--radius);
  border:1px solid var(--border);
  margin-bottom:35px;
  transition:var(--transition);
}

.card:hover{
  box-shadow:0 10px 30px rgba(0,0,0,0.05);
}

.premium-card{
  border:1px solid var(--primary);
  box-shadow:0 8px 30px rgba(37,99,235,0.08);
}

/* ================= CARD HEADER ================= */

.card-header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:20px;
}

.card-header h2{
  margin:0;
  font-size:22px;
}

/* ================= STATUS BADGE ================= */

.status{
  padding:6px 14px;
  border-radius:20px;
  font-size:12px;
  font-weight:600;
  text-transform:capitalize;
}

.status.active,
.status.paid{
  background:#e6f9f0;
  color:var(--success);
}

.status.inactive{
  background:#ffecec;
  color:var(--danger);
}

.status.pending{
  background:#fff7ed;
  color:var(--warning);
}

/* ================= SUBSCRIPTION ================= */

.subscription-content p{
  margin:8px 0;
  font-size:15px;
}

/* ================= BUTTONS ================= */

.card-actions{
  margin-top:25px;
}

.btn{
  padding:11px 18px;
  border:none;
  border-radius:10px;
  font-weight:600;
  cursor:pointer;
  margin-right:12px;
  transition:var(--transition);
}

.btn.primary{
  background:linear-gradient(135deg,var(--primary),#60a5fa);
  color:#fff;
  box-shadow:0 5px 14px rgba(37,99,235,0.25);
}

.btn.primary:hover{
  background:var(--primary-hover);
  transform:translateY(-2px);
}

.btn.danger{
  background:linear-gradient(135deg,var(--danger),#f87171);
  color:#fff;
}

.btn.danger:hover{
  background:var(--danger-hover);
  transform:translateY(-2px);
}

/* ================= TABLE ================= */

.table-wrapper{
  overflow-x:auto;
  margin-top:20px;
}

.billing-table{
  width:100%;
  border-collapse:collapse;
}

.billing-table th,
.billing-table td{
  padding:14px 12px;
  text-align:left;
  border-bottom:1px solid var(--border);
  font-size:14px;
}

.billing-table th{
  color:var(--gray);
  font-weight:600;
  text-transform:uppercase;
  font-size:12px;
  letter-spacing:.5px;
}

.billing-table tr:hover{
  background:#f9fbff;
}

/* ================= DOWNLOAD BUTTON ================= */

.download-btn{
  padding:6px 12px;
  font-size:13px;
  font-weight:600;
  border-radius:8px;
  border:1px solid var(--primary);
  background:var(--primary-soft);
  color:var(--primary);
  cursor:pointer;
  transition:var(--transition);
}

.download-btn:hover{
  background:var(--primary);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 5px 12px rgba(37,99,235,0.25);
}

/* ================= LOADER ================= */

.loader{
  border:4px solid #f3f3f3;
  border-top:4px solid var(--primary);
  border-radius:50%;
  width:32px;
  height:32px;
  animation:spin 1s linear infinite;
  margin:auto;
}

.loader.small{
  width:20px;
  height:20px;
}

@keyframes spin{
  0%{transform:rotate(0deg);}
  100%{transform:rotate(360deg);}
}

/* ================= MOBILE ================= */

@media(max-width:900px){

  .layout{
    flex-direction:column;
  }

  .sidebar{
    width:100%;
    display:flex;
    justify-content:space-around;
    padding:15px;
  }

  .sidebar a{
    margin-bottom:0;
  }

  .main{
    padding:25px;
  }

}